[175] | 1 |
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| 2 | /*
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| 3 | * bltGrMarker.c --
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| 4 | *
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| 5 | * This module implements markers for the BLT graph widget.
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| 6 | *
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| 7 | * Copyright 1993-1998 Lucent Technologies, Inc.
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| 8 | *
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| 9 | * Permission to use, copy, modify, and distribute this software and
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| 10 | * its documentation for any purpose and without fee is hereby
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| 11 | * granted, provided that the above copyright notice appear in all
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| 12 | * copies and that both that the copyright notice and warranty
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| 13 | * disclaimer appear in supporting documentation, and that the names
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| 14 | * of Lucent Technologies any of their entities not be used in
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| 15 | * advertising or publicity pertaining to distribution of the software
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| 16 | * without specific, written prior permission.
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| 17 | *
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| 18 | * Lucent Technologies disclaims all warranties with regard to this
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| 19 | * software, including all implied warranties of merchantability and
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| 20 | * fitness. In no event shall Lucent Technologies be liable for any
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| 21 | * special, indirect or consequential damages or any damages
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| 22 | * whatsoever resulting from loss of use, data or profits, whether in
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| 23 | * an action of contract, negligence or other tortuous action, arising
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| 24 | * out of or in connection with the use or performance of this
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| 25 | * software.
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| 26 | */
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| 27 |
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| 28 | #include "bltGraph.h"
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| 29 | #include "bltChain.h"
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| 30 | #include "bltGrElem.h"
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| 31 |
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| 32 | #define GETBITMAP(b) \
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| 33 | (((b)->destBitmap == None) ? (b)->srcBitmap : (b)->destBitmap)
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| 34 |
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| 35 | #define MAX_OUTLINE_POINTS 12
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| 36 |
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| 37 | /* Map graph coordinates to normalized coordinates [0..1] */
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| 38 | #define NORMALIZE(A,x) (((x) - (A)->axisRange.min) / (A)->axisRange.range)
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| 39 |
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| 40 | #define DEF_MARKER_ANCHOR "center"
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| 41 | #define DEF_MARKER_BACKGROUND RGB_WHITE
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| 42 | #define DEF_MARKER_BG_MONO RGB_WHITE
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| 43 | #define DEF_MARKER_BITMAP (char *)NULL
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| 44 | #define DEF_MARKER_CAP_STYLE "butt"
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| 45 | #define DEF_MARKER_COORDS (char *)NULL
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| 46 | #define DEF_MARKER_DASHES (char *)NULL
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| 47 | #define DEF_MARKER_DASH_OFFSET "0"
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| 48 | #define DEF_MARKER_ELEMENT (char *)NULL
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| 49 | #define DEF_MARKER_FOREGROUND RGB_BLACK
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| 50 | #define DEF_MARKER_FG_MONO RGB_BLACK
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| 51 | #define DEF_MARKER_FILL_COLOR RGB_RED
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| 52 | #define DEF_MARKER_FILL_MONO RGB_WHITE
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| 53 | #define DEF_MARKER_FONT STD_FONT
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| 54 | #define DEF_MARKER_GAP_COLOR RGB_PINK
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| 55 | #define DEF_MARKER_GAP_MONO RGB_BLACK
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| 56 | #define DEF_MARKER_HEIGHT "0"
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| 57 | #define DEF_MARKER_HIDE "no"
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| 58 | #define DEF_MARKER_JOIN_STYLE "miter"
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| 59 | #define DEF_MARKER_JUSTIFY "left"
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| 60 | #define DEF_MARKER_LINE_WIDTH "1"
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| 61 | #define DEF_MARKER_MAP_X "x"
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| 62 | #define DEF_MARKER_MAP_Y "y"
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| 63 | #define DEF_MARKER_NAME (char *)NULL
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| 64 | #define DEF_MARKER_OUTLINE_COLOR RGB_BLACK
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| 65 | #define DEF_MARKER_OUTLINE_MONO RGB_BLACK
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| 66 | #define DEF_MARKER_PAD "4"
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| 67 | #define DEF_MARKER_ROTATE "0.0"
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| 68 | #define DEF_MARKER_SCALE "1.0"
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| 69 | #define DEF_MARKER_SHADOW_COLOR (char *)NULL
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| 70 | #define DEF_MARKER_SHADOW_MONO (char *)NULL
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| 71 | #define DEF_MARKER_STATE "normal"
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| 72 | #define DEF_MARKER_STIPPLE (char *)NULL
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| 73 | #define DEF_MARKER_TEXT (char *)NULL
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| 74 | #define DEF_MARKER_UNDER "no"
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| 75 | #define DEF_MARKER_WIDTH "0"
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| 76 | #define DEF_MARKER_WINDOW (char *)NULL
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| 77 | #define DEF_MARKER_XOR "no"
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| 78 | #define DEF_MARKER_X_OFFSET "0"
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| 79 | #define DEF_MARKER_Y_OFFSET "0"
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| 80 |
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| 81 | #define DEF_MARKER_TEXT_TAGS "Text all"
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| 82 | #define DEF_MARKER_IMAGE_TAGS "Image all"
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| 83 | #define DEF_MARKER_BITMAP_TAGS "Bitmap all"
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| 84 | #define DEF_MARKER_WINDOW_TAGS "Window all"
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| 85 | #define DEF_MARKER_POLYGON_TAGS "Polygon all"
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| 86 | #define DEF_MARKER_LINE_TAGS "Line all"
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| 87 |
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| 88 | static Tk_OptionParseProc StringToCoordinates;
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| 89 | static Tk_OptionPrintProc CoordinatesToString;
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| 90 | static Tk_CustomOption coordsOption =
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| 91 | {
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| 92 | StringToCoordinates, CoordinatesToString, (ClientData)0
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| 93 | };
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| 94 | extern Tk_CustomOption bltColorPairOption;
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| 95 | extern Tk_CustomOption bltDashesOption;
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| 96 | extern Tk_CustomOption bltDistanceOption;
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| 97 | extern Tk_CustomOption bltListOption;
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| 98 | extern Tk_CustomOption bltPadOption;
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| 99 | extern Tk_CustomOption bltPositiveDistanceOption;
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| 100 | extern Tk_CustomOption bltShadowOption;
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| 101 | extern Tk_CustomOption bltStateOption;
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| 102 | extern Tk_CustomOption bltXAxisOption;
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| 103 | extern Tk_CustomOption bltYAxisOption;
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| 104 |
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| 105 | typedef Marker *(MarkerCreateProc) _ANSI_ARGS_((void));
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| 106 | typedef void (MarkerDrawProc) _ANSI_ARGS_((Marker *markerPtr,
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| 107 | Drawable drawable));
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| 108 | typedef void (MarkerFreeProc) _ANSI_ARGS_((Graph *graphPtr, Marker *markerPtr));
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| 109 | typedef int (MarkerConfigProc) _ANSI_ARGS_((Marker *markerPtr));
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| 110 | typedef void (MarkerMapProc) _ANSI_ARGS_((Marker *markerPtr));
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| 111 | typedef void (MarkerPostScriptProc) _ANSI_ARGS_((Marker *markerPtr,
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| 112 | PsToken psToken));
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| 113 | typedef int (MarkerPointProc) _ANSI_ARGS_((Marker *markerPtr,
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| 114 | Point2D *samplePtr));
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| 115 | typedef int (MarkerRegionProc) _ANSI_ARGS_((Marker *markerPtr,
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| 116 | Extents2D *extsPtr, int enclosed));
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| 117 |
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| 118 | typedef struct {
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| 119 | Tk_ConfigSpec *configSpecs; /* Marker configuration specifications */
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| 120 |
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| 121 | MarkerConfigProc *configProc;
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| 122 | MarkerDrawProc *drawProc;
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| 123 | MarkerFreeProc *freeProc;
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| 124 | MarkerMapProc *mapProc;
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| 125 | MarkerPointProc *pointProc;
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| 126 | MarkerRegionProc *regionProc;
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| 127 | MarkerPostScriptProc *postscriptProc;
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| 128 |
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| 129 | } MarkerClass;
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| 130 |
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| 131 |
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| 132 |
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| 133 | /*
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| 134 | * -------------------------------------------------------------------
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| 135 | *
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| 136 | * Marker --
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| 137 | *
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| 138 | * Structure defining the generic marker. In C++ parlance this
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| 139 | * would be the base type from which all markers are derived.
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| 140 | *
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| 141 | * This structure corresponds with the specific types of markers.
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| 142 | * Don't change this structure without changing the individual
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| 143 | * marker structures of each type below.
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| 144 | *
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| 145 | * -------------------------------------------------------------------
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| 146 | */
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| 147 | struct MarkerStruct {
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| 148 | char *name; /* Identifier for marker in list */
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| 149 |
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| 150 | Blt_Uid classUid; /* Type of marker. */
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| 151 |
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| 152 | Graph *graphPtr; /* Graph widget of marker. */
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| 153 |
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| 154 | unsigned int flags;
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| 155 |
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| 156 | char **tags;
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| 157 |
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| 158 | int hidden; /* If non-zero, don't display the marker. */
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| 159 |
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| 160 | Blt_HashEntry *hashPtr;
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| 161 |
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| 162 | Blt_ChainLink *linkPtr;
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| 163 |
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| 164 | Point2D *worldPts; /* Coordinate array to position marker */
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| 165 | int nWorldPts; /* Number of points in above array */
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| 166 |
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| 167 | char *elemName; /* Element associated with marker */
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| 168 |
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| 169 | Axis2D axes;
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| 170 |
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| 171 | int drawUnder; /* If non-zero, draw the marker
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| 172 | * underneath any elements. This can
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| 173 | * be a performance penalty because
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| 174 | * the graph must be redraw entirely
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| 175 | * each time the marker is redrawn. */
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| 176 |
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| 177 | int clipped; /* Indicates if the marker is totally
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| 178 | * clipped by the plotting area. */
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| 179 |
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| 180 | int xOffset, yOffset; /* Pixel offset from graph position */
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| 181 |
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| 182 | MarkerClass *classPtr;
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| 183 |
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| 184 | int state;
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| 185 | };
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| 186 |
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| 187 | /*
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| 188 | * -------------------------------------------------------------------
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| 189 | *
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| 190 | * TextMarker --
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| 191 | *
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| 192 | * -------------------------------------------------------------------
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| 193 | */
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| 194 | typedef struct {
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| 195 | char *name; /* Identifier for marker */
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| 196 | Blt_Uid classUid; /* Type of marker */
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| 197 | Graph *graphPtr; /* The graph this marker belongs to */
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| 198 | unsigned int flags;
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| 199 | char **tags;
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| 200 | int hidden; /* If non-zero, don't display the
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| 201 | * marker. */
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| 202 |
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| 203 | Blt_HashEntry *hashPtr;
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| 204 | Blt_ChainLink *linkPtr;
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| 205 |
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| 206 | Point2D *worldPts; /* Position of marker (1 X-Y coordinate) in
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| 207 | * world (graph) coordinates. */
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| 208 | int nWorldPts; /* Number of points */
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| 209 |
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| 210 | char *elemName; /* Element associated with marker */
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| 211 | Axis2D axes;
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| 212 | int drawUnder; /* If non-zero, draw the marker
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| 213 | * underneath any elements. There can
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| 214 | * be a performance because the graph
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| 215 | * must be redraw entirely each time
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| 216 | * this marker is redrawn. */
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| 217 | int clipped; /* Indicates if the marker is totally
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| 218 | * clipped by the plotting area. */
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| 219 | int xOffset, yOffset; /* pixel offset from anchor */
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| 220 |
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| 221 | MarkerClass *classPtr;
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| 222 |
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| 223 | int state;
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| 224 | /*
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| 225 | * Text specific fields and attributes
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| 226 | */
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| 227 | #ifdef notdef
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| 228 | char *textVarName; /* Name of variable (malloc'ed) or
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| 229 | * NULL. If non-NULL, graph displays
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| 230 | * the contents of this variable. */
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| 231 | #endif
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| 232 | char *string; /* Text string to be display. The string
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| 233 | * make contain newlines. */
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| 234 |
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| 235 | Tk_Anchor anchor; /* Indicates how to translate the given
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| 236 | * marker position. */
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| 237 |
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| 238 | Point2D anchorPos; /* Translated anchor point. */
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| 239 |
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| 240 | int width, height; /* Dimension of bounding box. */
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| 241 |
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| 242 | TextStyle style; /* Text attributes (font, fg, anchor, etc) */
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| 243 |
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| 244 | TextLayout *textPtr; /* Contains information about the layout
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| 245 | * of the text. */
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| 246 | Point2D outline[5];
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| 247 | XColor *fillColor;
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| 248 | GC fillGC;
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| 249 | } TextMarker;
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| 250 |
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| 251 |
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| 252 | static Tk_ConfigSpec textConfigSpecs[] =
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| 253 | {
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| 254 | {TK_CONFIG_ANCHOR, "-anchor", "anchor", "Anchor",
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| 255 | DEF_MARKER_ANCHOR, Tk_Offset(TextMarker, anchor), 0},
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| 256 | {TK_CONFIG_COLOR, "-background", "background", "MarkerBackground",
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| 257 | (char *)NULL, Tk_Offset(TextMarker, fillColor),
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| 258 | TK_CONFIG_NULL_OK},
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| 259 | {TK_CONFIG_SYNONYM, "-bg", "background", "Background",
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| 260 | (char *)NULL, 0, 0},
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| 261 | {TK_CONFIG_CUSTOM, "-bindtags", "bindTags", "BindTags",
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| 262 | DEF_MARKER_TEXT_TAGS, Tk_Offset(Marker, tags),
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| 263 | TK_CONFIG_NULL_OK, &bltListOption},
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| 264 | {TK_CONFIG_CUSTOM, "-coords", "coords", "Coords",
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| 265 | DEF_MARKER_COORDS, Tk_Offset(Marker, worldPts),
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| 266 | TK_CONFIG_NULL_OK, &coordsOption},
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| 267 | {TK_CONFIG_STRING, "-element", "element", "Element",
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| 268 | DEF_MARKER_ELEMENT, Tk_Offset(Marker, elemName), TK_CONFIG_NULL_OK},
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| 269 | {TK_CONFIG_SYNONYM, "-fg", "foreground", "Foreground",
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| 270 | (char *)NULL, 0, 0},
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| 271 | {TK_CONFIG_SYNONYM, "-fill", "background", (char *)NULL,
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| 272 | (char *)NULL, 0, 0},
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| 273 | {TK_CONFIG_FONT, "-font", "font", "Font",
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| 274 | DEF_MARKER_FONT, Tk_Offset(TextMarker, style.font), 0},
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| 275 | {TK_CONFIG_COLOR, "-foreground", "foreground", "Foreground",
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| 276 | DEF_MARKER_FOREGROUND, Tk_Offset(TextMarker, style.color),
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| 277 | TK_CONFIG_COLOR_ONLY},
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| 278 | {TK_CONFIG_COLOR, "-foreground", "foreground", "Foreground",
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| 279 | DEF_MARKER_FG_MONO, Tk_Offset(TextMarker, style.color),
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| 280 | TK_CONFIG_MONO_ONLY},
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| 281 | {TK_CONFIG_JUSTIFY, "-justify", "justify", "Justify",
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| 282 | DEF_MARKER_JUSTIFY, Tk_Offset(TextMarker, style.justify),
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| 283 | TK_CONFIG_DONT_SET_DEFAULT},
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| 284 | {TK_CONFIG_BOOLEAN, "-hide", "hide", "Hide",
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| 285 | DEF_MARKER_HIDE, Tk_Offset(Marker, hidden),
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| 286 | TK_CONFIG_DONT_SET_DEFAULT},
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| 287 | {TK_CONFIG_CUSTOM, "-mapx", "mapX", "MapX",
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| 288 | DEF_MARKER_MAP_X, Tk_Offset(Marker, axes.x), 0, &bltXAxisOption},
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| 289 | {TK_CONFIG_CUSTOM, "-mapy", "mapY", "MapY",
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| 290 | DEF_MARKER_MAP_Y, Tk_Offset(Marker, axes.y), 0, &bltYAxisOption},
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| 291 | {TK_CONFIG_STRING, "-name", (char *)NULL, (char *)NULL,
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| 292 | DEF_MARKER_NAME, Tk_Offset(Marker, name), TK_CONFIG_NULL_OK},
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| 293 | {TK_CONFIG_SYNONYM, "-outline", "foreground", (char *)NULL,
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| 294 | (char *)NULL, 0, 0},
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| 295 | {TK_CONFIG_CUSTOM, "-padx", "padX", "PadX",
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| 296 | DEF_MARKER_PAD, Tk_Offset(TextMarker, style.padX),
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| 297 | TK_CONFIG_DONT_SET_DEFAULT, &bltPadOption},
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| 298 | {TK_CONFIG_CUSTOM, "-pady", "padY", "PadY",
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| 299 | DEF_MARKER_PAD, Tk_Offset(TextMarker, style.padY),
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| 300 | TK_CONFIG_DONT_SET_DEFAULT, &bltPadOption},
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| 301 | {TK_CONFIG_DOUBLE, "-rotate", "rotate", "Rotate",
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| 302 | DEF_MARKER_ROTATE, Tk_Offset(TextMarker, style.theta),
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| 303 | TK_CONFIG_DONT_SET_DEFAULT},
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| 304 | {TK_CONFIG_CUSTOM, "-shadow", "shadow", "Shadow",
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| 305 | DEF_MARKER_SHADOW_COLOR, Tk_Offset(TextMarker, style.shadow),
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| 306 | TK_CONFIG_COLOR_ONLY, &bltShadowOption},
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| 307 | {TK_CONFIG_CUSTOM, "-shadow", "shadow", "Shadow",
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| 308 | DEF_MARKER_SHADOW_MONO, Tk_Offset(TextMarker, style.shadow),
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| 309 | TK_CONFIG_MONO_ONLY, &bltShadowOption},
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| 310 | {TK_CONFIG_CUSTOM, "-state", "state", "State",
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| 311 | DEF_MARKER_STATE, Tk_Offset(Marker, state),
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| 312 | TK_CONFIG_DONT_SET_DEFAULT, &bltStateOption},
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| 313 | {TK_CONFIG_STRING, "-text", "text", "Text",
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| 314 | DEF_MARKER_TEXT, Tk_Offset(TextMarker, string), TK_CONFIG_NULL_OK},
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| 315 | {TK_CONFIG_BOOLEAN, "-under", "under", "Under",
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| 316 | DEF_MARKER_UNDER, Tk_Offset(Marker, drawUnder),
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| 317 | TK_CONFIG_DONT_SET_DEFAULT},
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| 318 | {TK_CONFIG_PIXELS, "-xoffset", "xOffset", "XOffset",
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| 319 | DEF_MARKER_X_OFFSET, Tk_Offset(Marker, xOffset),
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| 320 | TK_CONFIG_DONT_SET_DEFAULT},
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| 321 | {TK_CONFIG_PIXELS, "-yoffset", "yOffset", "YOffset",
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| 322 | DEF_MARKER_Y_OFFSET, Tk_Offset(Marker, yOffset),
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| 323 | TK_CONFIG_DONT_SET_DEFAULT},
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| 324 | {TK_CONFIG_END, NULL, NULL, NULL, NULL, 0, 0}
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| 325 | };
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| 326 |
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| 327 |
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| 328 | /*
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| 329 | * -------------------------------------------------------------------
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| 330 | *
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| 331 | * WindowMarker --
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| 332 | *
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| 333 | * -------------------------------------------------------------------
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| 334 | */
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| 335 | typedef struct {
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| 336 | char *name; /* Identifier for marker */
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| 337 | Blt_Uid classUid; /* Type of marker */
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| 338 | Graph *graphPtr; /* Graph marker belongs to */
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| 339 | unsigned int flags;
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| 340 | char **tags;
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| 341 | int hidden; /* Indicates if the marker is
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| 342 | * currently hidden or not. */
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| 343 |
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| 344 | Blt_HashEntry *hashPtr;
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| 345 | Blt_ChainLink *linkPtr;
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| 346 |
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| 347 | Point2D *worldPts; /* Position of marker (1 X-Y coordinate) in
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| 348 | * world (graph) coordinates. */
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| 349 | int nWorldPts; /* Number of points */
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| 350 |
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| 351 | char *elemName; /* Element associated with marker */
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| 352 | Axis2D axes;
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| 353 | int drawUnder; /* If non-zero, draw the marker
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| 354 | * underneath any elements. There can
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| 355 | * be a performance because the graph
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| 356 | * must be redraw entirely each time
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| 357 | * this marker is redrawn. */
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| 358 | int clipped; /* Indicates if the marker is totally
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| 359 | * clipped by the plotting area. */
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| 360 | int xOffset, yOffset; /* Pixel offset from anchor. */
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| 361 |
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| 362 | MarkerClass *classPtr;
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| 363 |
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| 364 | int state;
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| 365 |
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| 366 | /*
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| 367 | * Window specific attributes
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| 368 | */
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| 369 | char *pathName; /* Name of child widget to be displayed. */
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| 370 | Tk_Window tkwin; /* Window to display. */
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| 371 | int reqWidth, reqHeight; /* If non-zero, this overrides the size
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| 372 | * requested by the child widget. */
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| 373 |
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| 374 | Tk_Anchor anchor; /* Indicates how to translate the given
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| 375 | * marker position. */
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| 376 |
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| 377 | Point2D anchorPos; /* Translated anchor point. */
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| 378 | int width, height; /* Current size of the child window. */
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| 379 |
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| 380 | } WindowMarker;
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| 381 |
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| 382 | static Tk_ConfigSpec windowConfigSpecs[] =
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| 383 | {
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| 384 | {TK_CONFIG_ANCHOR, "-anchor", "anchor", "Anchor",
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| 385 | DEF_MARKER_ANCHOR, Tk_Offset(WindowMarker, anchor), 0},
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| 386 | {TK_CONFIG_CUSTOM, "-bindtags", "bindTags", "BindTags",
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| 387 | DEF_MARKER_WINDOW_TAGS, Tk_Offset(Marker, tags),
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| 388 | TK_CONFIG_NULL_OK, &bltListOption},
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| 389 | {TK_CONFIG_CUSTOM, "-coords", "coords", "Coords",
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| 390 | DEF_MARKER_COORDS, Tk_Offset(WindowMarker, worldPts),
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| 391 | TK_CONFIG_NULL_OK, &coordsOption},
|
---|
| 392 | {TK_CONFIG_STRING, "-element", "element", "Element",
|
---|
| 393 | DEF_MARKER_ELEMENT, Tk_Offset(Marker, elemName), TK_CONFIG_NULL_OK},
|
---|
| 394 | {TK_CONFIG_CUSTOM, "-height", "height", "Height",
|
---|
| 395 | DEF_MARKER_HEIGHT, Tk_Offset(WindowMarker, reqHeight),
|
---|
| 396 | TK_CONFIG_DONT_SET_DEFAULT, &bltPositiveDistanceOption},
|
---|
| 397 | {TK_CONFIG_BOOLEAN, "-hide", "hide", "Hide",
|
---|
| 398 | DEF_MARKER_HIDE, Tk_Offset(Marker, hidden),
|
---|
| 399 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 400 | {TK_CONFIG_CUSTOM, "-mapx", "mapX", "MapX",
|
---|
| 401 | DEF_MARKER_MAP_X, Tk_Offset(Marker, axes.x), 0, &bltXAxisOption},
|
---|
| 402 | {TK_CONFIG_CUSTOM, "-mapy", "mapY", "MapY",
|
---|
| 403 | DEF_MARKER_MAP_Y, Tk_Offset(Marker, axes.y), 0, &bltYAxisOption},
|
---|
| 404 | {TK_CONFIG_STRING, "-name", (char *)NULL, (char *)NULL,
|
---|
| 405 | DEF_MARKER_NAME, Tk_Offset(Marker, name), TK_CONFIG_NULL_OK},
|
---|
| 406 | {TK_CONFIG_CUSTOM, "-state", "state", "State",
|
---|
| 407 | DEF_MARKER_STATE, Tk_Offset(Marker, state),
|
---|
| 408 | TK_CONFIG_DONT_SET_DEFAULT, &bltStateOption},
|
---|
| 409 | {TK_CONFIG_BOOLEAN, "-under", "under", "Under",
|
---|
| 410 | DEF_MARKER_UNDER, Tk_Offset(Marker, drawUnder),
|
---|
| 411 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 412 | {TK_CONFIG_CUSTOM, "-width", "width", "Width",
|
---|
| 413 | DEF_MARKER_WIDTH, Tk_Offset(WindowMarker, reqWidth),
|
---|
| 414 | TK_CONFIG_DONT_SET_DEFAULT, &bltPositiveDistanceOption},
|
---|
| 415 | {TK_CONFIG_STRING, "-window", "window", "Window",
|
---|
| 416 | DEF_MARKER_WINDOW, Tk_Offset(WindowMarker, pathName),
|
---|
| 417 | TK_CONFIG_NULL_OK},
|
---|
| 418 | {TK_CONFIG_PIXELS, "-xoffset", "xOffset", "XOffset",
|
---|
| 419 | DEF_MARKER_X_OFFSET, Tk_Offset(Marker, xOffset),
|
---|
| 420 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 421 | {TK_CONFIG_PIXELS, "-yoffset", "yOffset", "YOffset",
|
---|
| 422 | DEF_MARKER_Y_OFFSET, Tk_Offset(Marker, yOffset),
|
---|
| 423 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 424 | {TK_CONFIG_END, NULL, NULL, NULL, NULL, 0, 0}
|
---|
| 425 | };
|
---|
| 426 |
|
---|
| 427 | /*
|
---|
| 428 | * -------------------------------------------------------------------
|
---|
| 429 | *
|
---|
| 430 | * BitmapMarker --
|
---|
| 431 | *
|
---|
| 432 | * -------------------------------------------------------------------
|
---|
| 433 | */
|
---|
| 434 | typedef struct {
|
---|
| 435 | char *name; /* Identifier for marker */
|
---|
| 436 | Blt_Uid classUid; /* Type of marker */
|
---|
| 437 | Graph *graphPtr; /* Graph marker belongs to */
|
---|
| 438 | unsigned int flags;
|
---|
| 439 | char **tags;
|
---|
| 440 | int hidden; /* Indicates if the marker is currently
|
---|
| 441 | * hidden or not. */
|
---|
| 442 |
|
---|
| 443 | Blt_HashEntry *hashPtr;
|
---|
| 444 | Blt_ChainLink *linkPtr;
|
---|
| 445 |
|
---|
| 446 | Point2D *worldPts; /* Position of marker in world (graph)
|
---|
| 447 | * coordinates. If 2 pairs of X-Y
|
---|
| 448 | * coordinates are specified, then the
|
---|
| 449 | * bitmap is resized to fit this area.
|
---|
| 450 | * Otherwise if 1 pair, then the bitmap
|
---|
| 451 | * is positioned at the coordinate at its
|
---|
| 452 | * normal size. */
|
---|
| 453 | int nWorldPts; /* Number of points */
|
---|
| 454 |
|
---|
| 455 | char *elemName; /* Element associated with marker */
|
---|
| 456 | Axis2D axes;
|
---|
| 457 | int drawUnder; /* If non-zero, draw the marker
|
---|
| 458 | * underneath any elements. There can
|
---|
| 459 | * be a performance because the graph
|
---|
| 460 | * must be redraw entirely each time
|
---|
| 461 | * this marker is redrawn. */
|
---|
| 462 |
|
---|
| 463 | int clipped; /* Indicates if the marker is totally
|
---|
| 464 | * clipped by the plotting area. */
|
---|
| 465 |
|
---|
| 466 | int xOffset, yOffset; /* Pixel offset from origin of bitmap */
|
---|
| 467 |
|
---|
| 468 | MarkerClass *classPtr;
|
---|
| 469 |
|
---|
| 470 | int state;
|
---|
| 471 |
|
---|
| 472 | /* Bitmap specific attributes */
|
---|
| 473 | Pixmap srcBitmap; /* Original bitmap. May be further
|
---|
| 474 | * scaled or rotated. */
|
---|
| 475 | double rotate; /* Requested rotation of the bitmap */
|
---|
| 476 | double theta; /* Normalized rotation (0..360
|
---|
| 477 | * degrees) */
|
---|
| 478 | Tk_Anchor anchor; /* If only one X-Y coordinate is
|
---|
| 479 | * given, indicates how to translate
|
---|
| 480 | * the given marker position. Otherwise,
|
---|
| 481 | * if there are two X-Y coordinates, then
|
---|
| 482 | * this value is ignored. */
|
---|
| 483 | Point2D anchorPos; /* Translated anchor point. */
|
---|
| 484 |
|
---|
| 485 | XColor *outlineColor; /* Foreground color */
|
---|
| 486 | XColor *fillColor; /* Background color */
|
---|
| 487 |
|
---|
| 488 | GC gc; /* Private graphic context */
|
---|
| 489 | GC fillGC; /* Shared graphic context */
|
---|
| 490 | Pixmap destBitmap; /* Bitmap to be drawn. */
|
---|
| 491 | int destWidth, destHeight; /* Dimensions of the final bitmap */
|
---|
| 492 |
|
---|
| 493 | Point2D outline[MAX_OUTLINE_POINTS];
|
---|
| 494 | /* Polygon representing the background
|
---|
| 495 | * of the bitmap. */
|
---|
| 496 | int nOutlinePts;
|
---|
| 497 | } BitmapMarker;
|
---|
| 498 |
|
---|
| 499 | static Tk_ConfigSpec bitmapConfigSpecs[] =
|
---|
| 500 | {
|
---|
| 501 | {TK_CONFIG_ANCHOR, "-anchor", "anchor", "Anchor",
|
---|
| 502 | DEF_MARKER_ANCHOR, Tk_Offset(BitmapMarker, anchor), 0},
|
---|
| 503 | {TK_CONFIG_COLOR, "-background", "background", "Background",
|
---|
| 504 | DEF_MARKER_BACKGROUND, Tk_Offset(BitmapMarker, fillColor),
|
---|
| 505 | TK_CONFIG_COLOR_ONLY | TK_CONFIG_NULL_OK},
|
---|
| 506 | {TK_CONFIG_COLOR, "-background", "background", "Background",
|
---|
| 507 | DEF_MARKER_BG_MONO, Tk_Offset(BitmapMarker, fillColor),
|
---|
| 508 | TK_CONFIG_MONO_ONLY | TK_CONFIG_NULL_OK},
|
---|
| 509 | {TK_CONFIG_SYNONYM, "-bg", "background", (char *)NULL,
|
---|
| 510 | (char *)NULL, 0, 0},
|
---|
| 511 | {TK_CONFIG_CUSTOM, "-bindtags", "bindTags", "BindTags",
|
---|
| 512 | DEF_MARKER_BITMAP_TAGS, Tk_Offset(Marker, tags),
|
---|
| 513 | TK_CONFIG_NULL_OK, &bltListOption},
|
---|
| 514 | {TK_CONFIG_BITMAP, "-bitmap", "bitmap", "Bitmap",
|
---|
| 515 | DEF_MARKER_BITMAP, Tk_Offset(BitmapMarker, srcBitmap),
|
---|
| 516 | TK_CONFIG_NULL_OK},
|
---|
| 517 | {TK_CONFIG_CUSTOM, "-coords", "coords", "Coords",
|
---|
| 518 | DEF_MARKER_COORDS, Tk_Offset(Marker, worldPts),
|
---|
| 519 | TK_CONFIG_NULL_OK, &coordsOption},
|
---|
| 520 | {TK_CONFIG_STRING, "-element", "element", "Element",
|
---|
| 521 | DEF_MARKER_ELEMENT, Tk_Offset(Marker, elemName), TK_CONFIG_NULL_OK},
|
---|
| 522 | {TK_CONFIG_SYNONYM, "-fg", "foreground", (char *)NULL,
|
---|
| 523 | (char *)NULL, 0, 0},
|
---|
| 524 | {TK_CONFIG_SYNONYM, "-fill", "background", (char *)NULL,
|
---|
| 525 | (char *)NULL, 0, 0},
|
---|
| 526 | {TK_CONFIG_COLOR, "-foreground", "foreground", "Foreground",
|
---|
| 527 | DEF_MARKER_FOREGROUND, Tk_Offset(BitmapMarker, outlineColor),
|
---|
| 528 | TK_CONFIG_COLOR_ONLY | TK_CONFIG_NULL_OK},
|
---|
| 529 | {TK_CONFIG_COLOR, "-foreground", "foreground", "Foreground",
|
---|
| 530 | DEF_MARKER_FG_MONO, Tk_Offset(BitmapMarker, outlineColor),
|
---|
| 531 | TK_CONFIG_MONO_ONLY | TK_CONFIG_NULL_OK},
|
---|
| 532 | {TK_CONFIG_BOOLEAN, "-hide", "hide", "Hide",
|
---|
| 533 | DEF_MARKER_HIDE, Tk_Offset(Marker, hidden),
|
---|
| 534 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 535 | {TK_CONFIG_CUSTOM, "-mapx", "mapX", "MapX",
|
---|
| 536 | DEF_MARKER_MAP_X, Tk_Offset(Marker, axes.x), 0, &bltXAxisOption},
|
---|
| 537 | {TK_CONFIG_CUSTOM, "-mapy", "mapY", "MapY",
|
---|
| 538 | DEF_MARKER_MAP_Y, Tk_Offset(Marker, axes.y), 0, &bltYAxisOption},
|
---|
| 539 | {TK_CONFIG_STRING, "-name", (char *)NULL, (char *)NULL,
|
---|
| 540 | DEF_MARKER_NAME, Tk_Offset(Marker, name), TK_CONFIG_NULL_OK},
|
---|
| 541 | {TK_CONFIG_SYNONYM, "-outline", "foreground", (char *)NULL,
|
---|
| 542 | (char *)NULL, 0, 0},
|
---|
| 543 | {TK_CONFIG_DOUBLE, "-rotate", "rotate", "Rotate",
|
---|
| 544 | DEF_MARKER_ROTATE, Tk_Offset(BitmapMarker, rotate),
|
---|
| 545 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 546 | {TK_CONFIG_CUSTOM, "-state", "state", "State",
|
---|
| 547 | DEF_MARKER_STATE, Tk_Offset(Marker, state),
|
---|
| 548 | TK_CONFIG_DONT_SET_DEFAULT, &bltStateOption},
|
---|
| 549 | {TK_CONFIG_BOOLEAN, "-under", "under", "Under",
|
---|
| 550 | DEF_MARKER_UNDER, Tk_Offset(Marker, drawUnder),
|
---|
| 551 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 552 | {TK_CONFIG_PIXELS, "-xoffset", "xOffset", "XOffset",
|
---|
| 553 | DEF_MARKER_X_OFFSET, Tk_Offset(Marker, xOffset),
|
---|
| 554 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 555 | {TK_CONFIG_PIXELS, "-yoffset", "yOffset", "YOffset",
|
---|
| 556 | DEF_MARKER_Y_OFFSET, Tk_Offset(Marker, yOffset),
|
---|
| 557 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 558 | {TK_CONFIG_END, NULL, NULL, NULL, NULL, 0, 0}
|
---|
| 559 | };
|
---|
| 560 |
|
---|
| 561 |
|
---|
| 562 | /*
|
---|
| 563 | * -------------------------------------------------------------------
|
---|
| 564 | *
|
---|
| 565 | * ImageMarker --
|
---|
| 566 | *
|
---|
| 567 | * -------------------------------------------------------------------
|
---|
| 568 | */
|
---|
| 569 | typedef struct {
|
---|
| 570 | char *name; /* Identifier for marker */
|
---|
| 571 | Blt_Uid classUid; /* Type of marker */
|
---|
| 572 | Graph *graphPtr; /* Graph marker belongs to */
|
---|
| 573 | unsigned int flags;
|
---|
| 574 | char **tags;
|
---|
| 575 | int hidden; /* Indicates if the marker is
|
---|
| 576 | * currently hidden or not. */
|
---|
| 577 |
|
---|
| 578 | Blt_HashEntry *hashPtr;
|
---|
| 579 | Blt_ChainLink *linkPtr;
|
---|
| 580 | Point2D *worldPts; /* Position of marker in world (graph)
|
---|
| 581 | * coordinates. If 2 pairs of X-Y
|
---|
| 582 | * coordinates are specified, then the
|
---|
| 583 | * image is resized to fit this area.
|
---|
| 584 | * Otherwise if 1 pair, then the image
|
---|
| 585 | * is positioned at the coordinate at
|
---|
| 586 | * its normal size. */
|
---|
| 587 | int nWorldPts; /* Number of points */
|
---|
| 588 |
|
---|
| 589 | char *elemName; /* Element associated with marker */
|
---|
| 590 | Axis2D axes;
|
---|
| 591 | int drawUnder; /* If non-zero, draw the marker
|
---|
| 592 | * underneath any elements. There can
|
---|
| 593 | * be a performance because the graph
|
---|
| 594 | * must be redraw entirely each time
|
---|
| 595 | * this marker is redrawn. */
|
---|
| 596 | int clipped; /* Indicates if the marker is totally
|
---|
| 597 | * clipped by the plotting area. */
|
---|
| 598 | int xOffset, yOffset; /* Pixel offset from anchor */
|
---|
| 599 |
|
---|
| 600 | MarkerClass *classPtr;
|
---|
| 601 |
|
---|
| 602 | int state;
|
---|
| 603 |
|
---|
| 604 | /* Image specific attributes */
|
---|
| 605 | char *imageName; /* Name of image to be displayed. */
|
---|
| 606 | Tk_Image tkImage; /* Tk image to be displayed. */
|
---|
| 607 | Tk_Anchor anchor; /* Indicates how to translate the given
|
---|
| 608 | * marker position. */
|
---|
| 609 | Point2D anchorPos; /* Translated anchor point. */
|
---|
| 610 | int width, height; /* Dimensions of the image */
|
---|
| 611 | Tk_Image tmpImage;
|
---|
| 612 | Pixmap pixmap; /* Pixmap containing the scaled image */
|
---|
| 613 | ColorTable colorTable; /* Pointer to color table */
|
---|
| 614 | Blt_ColorImage srcImage;
|
---|
| 615 | GC gc;
|
---|
| 616 |
|
---|
| 617 | } ImageMarker;
|
---|
| 618 |
|
---|
| 619 | static Tk_ConfigSpec imageConfigSpecs[] =
|
---|
| 620 | {
|
---|
| 621 | {TK_CONFIG_ANCHOR, "-anchor", "anchor", "Anchor",
|
---|
| 622 | DEF_MARKER_ANCHOR, Tk_Offset(ImageMarker, anchor), 0},
|
---|
| 623 | {TK_CONFIG_CUSTOM, "-bindtags", "bindTags", "BindTags",
|
---|
| 624 | DEF_MARKER_IMAGE_TAGS, Tk_Offset(Marker, tags),
|
---|
| 625 | TK_CONFIG_NULL_OK, &bltListOption},
|
---|
| 626 | {TK_CONFIG_CUSTOM, "-coords", "coords", "Coords",
|
---|
| 627 | DEF_MARKER_COORDS, Tk_Offset(Marker, worldPts),
|
---|
| 628 | TK_CONFIG_NULL_OK, &coordsOption},
|
---|
| 629 | {TK_CONFIG_STRING, "-element", "element", "Element",
|
---|
| 630 | DEF_MARKER_ELEMENT, Tk_Offset(Marker, elemName), TK_CONFIG_NULL_OK},
|
---|
| 631 | {TK_CONFIG_BOOLEAN, "-hide", "hide", "Hide",
|
---|
| 632 | DEF_MARKER_HIDE, Tk_Offset(Marker, hidden),
|
---|
| 633 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 634 | {TK_CONFIG_STRING, "-image", "image", "Image",
|
---|
| 635 | (char *)NULL, Tk_Offset(ImageMarker, imageName), TK_CONFIG_NULL_OK},
|
---|
| 636 | {TK_CONFIG_CUSTOM, "-mapx", "mapX", "MapX",
|
---|
| 637 | DEF_MARKER_MAP_X, Tk_Offset(Marker, axes.x), 0, &bltXAxisOption},
|
---|
| 638 | {TK_CONFIG_CUSTOM, "-mapy", "mapY", "MapY",
|
---|
| 639 | DEF_MARKER_MAP_Y, Tk_Offset(Marker, axes.y), 0, &bltYAxisOption},
|
---|
| 640 | {TK_CONFIG_STRING, "-name", (char *)NULL, (char *)NULL,
|
---|
| 641 | DEF_MARKER_NAME, Tk_Offset(Marker, name), TK_CONFIG_NULL_OK},
|
---|
| 642 | {TK_CONFIG_CUSTOM, "-state", "state", "State",
|
---|
| 643 | DEF_MARKER_STATE, Tk_Offset(Marker, state),
|
---|
| 644 | TK_CONFIG_DONT_SET_DEFAULT, &bltStateOption},
|
---|
| 645 | {TK_CONFIG_BOOLEAN, "-under", "under", "Under",
|
---|
| 646 | DEF_MARKER_UNDER, Tk_Offset(Marker, drawUnder),
|
---|
| 647 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 648 | {TK_CONFIG_PIXELS, "-xoffset", "xOffset", "XOffset",
|
---|
| 649 | DEF_MARKER_X_OFFSET, Tk_Offset(Marker, xOffset),
|
---|
| 650 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 651 | {TK_CONFIG_PIXELS, "-yoffset", "yOffset", "YOffset",
|
---|
| 652 | DEF_MARKER_Y_OFFSET, Tk_Offset(Marker, yOffset),
|
---|
| 653 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 654 | {TK_CONFIG_END, NULL, NULL, NULL, NULL, 0, 0}
|
---|
| 655 | };
|
---|
| 656 |
|
---|
| 657 | /*
|
---|
| 658 | * -------------------------------------------------------------------
|
---|
| 659 | *
|
---|
| 660 | * LineMarker --
|
---|
| 661 | *
|
---|
| 662 | * -------------------------------------------------------------------
|
---|
| 663 | */
|
---|
| 664 | typedef struct {
|
---|
| 665 | char *name; /* Identifier for marker */
|
---|
| 666 | Blt_Uid classUid; /* Type is "linemarker" */
|
---|
| 667 | Graph *graphPtr; /* Graph marker belongs to */
|
---|
| 668 | unsigned int flags;
|
---|
| 669 | char **tags;
|
---|
| 670 | int hidden; /* Indicates if the marker is currently
|
---|
| 671 | * hidden or not. */
|
---|
| 672 |
|
---|
| 673 | Blt_HashEntry *hashPtr;
|
---|
| 674 | Blt_ChainLink *linkPtr;
|
---|
| 675 |
|
---|
| 676 | Point2D *worldPts; /* Position of marker (X-Y coordinates) in
|
---|
| 677 | * world (graph) coordinates. */
|
---|
| 678 | int nWorldPts; /* Number of points */
|
---|
| 679 |
|
---|
| 680 | char *elemName; /* Element associated with marker */
|
---|
| 681 | Axis2D axes;
|
---|
| 682 | int drawUnder; /* If non-zero, draw the marker
|
---|
| 683 | * underneath any elements. There can
|
---|
| 684 | * be a performance because the graph
|
---|
| 685 | * must be redraw entirely each time
|
---|
| 686 | * this marker is redrawn. */
|
---|
| 687 | int clipped; /* Indicates if the marker is totally
|
---|
| 688 | * clipped by the plotting area. */
|
---|
| 689 | int xOffset, yOffset; /* Pixel offset */
|
---|
| 690 |
|
---|
| 691 | MarkerClass *classPtr;
|
---|
| 692 |
|
---|
| 693 | int state;
|
---|
| 694 |
|
---|
| 695 | /* Line specific attributes */
|
---|
| 696 | XColor *fillColor;
|
---|
| 697 | XColor *outlineColor; /* Foreground and background colors */
|
---|
| 698 |
|
---|
| 699 | int lineWidth; /* Line width. */
|
---|
| 700 | int capStyle; /* Cap style. */
|
---|
| 701 | int joinStyle; /* Join style.*/
|
---|
| 702 | Blt_Dashes dashes; /* Dash list values (max 11) */
|
---|
| 703 |
|
---|
| 704 | GC gc; /* Private graphic context */
|
---|
| 705 |
|
---|
| 706 | Segment2D *segments; /* Malloc'ed array of points.
|
---|
| 707 | * Represents individual line segments
|
---|
| 708 | * (2 points per segment) comprising
|
---|
| 709 | * the mapped line. The segments may
|
---|
| 710 | * not necessarily be connected after
|
---|
| 711 | * clipping. */
|
---|
| 712 | int nSegments; /* # segments in the above array. */
|
---|
| 713 |
|
---|
| 714 | int xor;
|
---|
| 715 | int xorState; /* State of the XOR drawing. Indicates
|
---|
| 716 | * if the marker is currently drawn. */
|
---|
| 717 | } LineMarker;
|
---|
| 718 |
|
---|
| 719 | static Tk_ConfigSpec lineConfigSpecs[] =
|
---|
| 720 | {
|
---|
| 721 | {TK_CONFIG_CUSTOM, "-bindtags", "bindTags", "BindTags",
|
---|
| 722 | DEF_MARKER_LINE_TAGS, Tk_Offset(Marker, tags),
|
---|
| 723 | TK_CONFIG_NULL_OK, &bltListOption},
|
---|
| 724 | {TK_CONFIG_CAP_STYLE, "-cap", "cap", "Cap",
|
---|
| 725 | DEF_MARKER_CAP_STYLE, Tk_Offset(LineMarker, capStyle),
|
---|
| 726 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 727 | {TK_CONFIG_CUSTOM, "-coords", "coords", "Coords",
|
---|
| 728 | DEF_MARKER_COORDS, Tk_Offset(Marker, worldPts),
|
---|
| 729 | TK_CONFIG_NULL_OK, &coordsOption},
|
---|
| 730 | {TK_CONFIG_CUSTOM, "-dashes", "dashes", "Dashes",
|
---|
| 731 | DEF_MARKER_DASHES, Tk_Offset(LineMarker, dashes),
|
---|
| 732 | TK_CONFIG_NULL_OK, &bltDashesOption},
|
---|
| 733 | {TK_CONFIG_CUSTOM, "-dashoffset", "dashOffset", "DashOffset",
|
---|
| 734 | DEF_MARKER_DASH_OFFSET, Tk_Offset(LineMarker, dashes.offset),
|
---|
| 735 | TK_CONFIG_DONT_SET_DEFAULT, &bltDistanceOption},
|
---|
| 736 | {TK_CONFIG_STRING, "-element", "element", "Element",
|
---|
| 737 | DEF_MARKER_ELEMENT, Tk_Offset(Marker, elemName), TK_CONFIG_NULL_OK},
|
---|
| 738 | {TK_CONFIG_COLOR, "-fill", "fill", "Fill",
|
---|
| 739 | (char *)NULL, Tk_Offset(LineMarker, fillColor), TK_CONFIG_NULL_OK},
|
---|
| 740 | {TK_CONFIG_JOIN_STYLE, "-join", "join", "Join",
|
---|
| 741 | DEF_MARKER_JOIN_STYLE, Tk_Offset(LineMarker, joinStyle),
|
---|
| 742 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 743 | {TK_CONFIG_CUSTOM, "-linewidth", "lineWidth", "LineWidth",
|
---|
| 744 | DEF_MARKER_LINE_WIDTH, Tk_Offset(LineMarker, lineWidth),
|
---|
| 745 | TK_CONFIG_DONT_SET_DEFAULT, &bltDistanceOption},
|
---|
| 746 | {TK_CONFIG_BOOLEAN, "-hide", "hide", "Hide",
|
---|
| 747 | DEF_MARKER_HIDE, Tk_Offset(Marker, hidden),
|
---|
| 748 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 749 | {TK_CONFIG_CUSTOM, "-mapx", "mapX", "MapX",
|
---|
| 750 | DEF_MARKER_MAP_X, Tk_Offset(Marker, axes.x), 0, &bltXAxisOption},
|
---|
| 751 | {TK_CONFIG_CUSTOM, "-mapy", "mapY", "MapY",
|
---|
| 752 | DEF_MARKER_MAP_Y, Tk_Offset(Marker, axes.y), 0, &bltYAxisOption},
|
---|
| 753 | {TK_CONFIG_STRING, "-name", (char *)NULL, (char *)NULL,
|
---|
| 754 | DEF_MARKER_NAME, Tk_Offset(Marker, name), TK_CONFIG_NULL_OK},
|
---|
| 755 | {TK_CONFIG_COLOR, "-outline", "outline", "Outline",
|
---|
| 756 | DEF_MARKER_OUTLINE_COLOR, Tk_Offset(LineMarker, outlineColor),
|
---|
| 757 | TK_CONFIG_COLOR_ONLY | TK_CONFIG_NULL_OK},
|
---|
| 758 | {TK_CONFIG_COLOR, "-outline", "outline", "Outline",
|
---|
| 759 | DEF_MARKER_OUTLINE_MONO, Tk_Offset(LineMarker, outlineColor),
|
---|
| 760 | TK_CONFIG_MONO_ONLY | TK_CONFIG_NULL_OK},
|
---|
| 761 | {TK_CONFIG_CUSTOM, "-state", "state", "State",
|
---|
| 762 | DEF_MARKER_STATE, Tk_Offset(Marker, state),
|
---|
| 763 | TK_CONFIG_DONT_SET_DEFAULT, &bltStateOption},
|
---|
| 764 | {TK_CONFIG_BOOLEAN, "-under", "under", "Under",
|
---|
| 765 | DEF_MARKER_UNDER, Tk_Offset(Marker, drawUnder),
|
---|
| 766 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 767 | {TK_CONFIG_PIXELS, "-xoffset", "xOffset", "XOffset",
|
---|
| 768 | DEF_MARKER_X_OFFSET, Tk_Offset(Marker, xOffset),
|
---|
| 769 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 770 | {TK_CONFIG_BOOLEAN, "-xor", "xor", "Xor",
|
---|
| 771 | DEF_MARKER_XOR, Tk_Offset(LineMarker, xor), TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 772 | {TK_CONFIG_PIXELS, "-yoffset", "yOffset", "YOffset",
|
---|
| 773 | DEF_MARKER_Y_OFFSET, Tk_Offset(Marker, yOffset),
|
---|
| 774 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 775 | {TK_CONFIG_END, NULL, NULL, NULL, NULL, 0, 0}
|
---|
| 776 | };
|
---|
| 777 |
|
---|
| 778 | /*
|
---|
| 779 | * -------------------------------------------------------------------
|
---|
| 780 | *
|
---|
| 781 | * PolygonMarker --
|
---|
| 782 | *
|
---|
| 783 | * -------------------------------------------------------------------
|
---|
| 784 | */
|
---|
| 785 | typedef struct {
|
---|
| 786 | char *name; /* Identifier for marker */
|
---|
| 787 | Blt_Uid classUid; /* Type of marker */
|
---|
| 788 | Graph *graphPtr; /* Graph marker belongs to */
|
---|
| 789 | unsigned int flags;
|
---|
| 790 | char **tags;
|
---|
| 791 | int hidden; /* Indicates if the marker is currently
|
---|
| 792 | * hidden or not. */
|
---|
| 793 |
|
---|
| 794 | Blt_HashEntry *hashPtr;
|
---|
| 795 | Blt_ChainLink *linkPtr;
|
---|
| 796 |
|
---|
| 797 | Point2D *worldPts; /* Position of marker (X-Y coordinates) in
|
---|
| 798 | * world (graph) coordinates. */
|
---|
| 799 | int nWorldPts; /* Number of points */
|
---|
| 800 |
|
---|
| 801 | char *elemName; /* Element associated with marker */
|
---|
| 802 | Axis2D axes;
|
---|
| 803 | int drawUnder; /* If non-zero, draw the marker
|
---|
| 804 | * underneath any elements. There can
|
---|
| 805 | * be a performance because the graph
|
---|
| 806 | * must be redraw entirely each time
|
---|
| 807 | * this marker is redrawn. */
|
---|
| 808 | int clipped; /* Indicates if the marker is totally
|
---|
| 809 | * clipped by the plotting area. */
|
---|
| 810 | int xOffset, yOffset; /* Pixel offset */
|
---|
| 811 |
|
---|
| 812 | MarkerClass *classPtr;
|
---|
| 813 |
|
---|
| 814 | int state;
|
---|
| 815 |
|
---|
| 816 | /* Polygon specific attributes and fields */
|
---|
| 817 |
|
---|
| 818 | Point2D *screenPts; /* Array of points representing the
|
---|
| 819 | * polygon in screen coordinates. It's
|
---|
| 820 | * not used for drawing, but to
|
---|
| 821 | * generate the outlinePts and fillPts
|
---|
| 822 | * arrays that are the coordinates of
|
---|
| 823 | * the possibly clipped outline and
|
---|
| 824 | * filled polygon. */
|
---|
| 825 |
|
---|
| 826 | ColorPair outline;
|
---|
| 827 | ColorPair fill;
|
---|
| 828 |
|
---|
| 829 | Pixmap stipple; /* Stipple pattern to fill the polygon. */
|
---|
| 830 | int lineWidth; /* Width of polygon outline. */
|
---|
| 831 | int capStyle;
|
---|
| 832 | int joinStyle;
|
---|
| 833 | Blt_Dashes dashes; /* List of dash values. Indicates how
|
---|
| 834 | * draw the dashed line. If no dash
|
---|
| 835 | * values are provided, or the first value
|
---|
| 836 | * is zero, then the line is drawn solid. */
|
---|
| 837 |
|
---|
| 838 | GC outlineGC; /* Graphics context to draw the outline of
|
---|
| 839 | * the polygon. */
|
---|
| 840 | GC fillGC; /* Graphics context to draw the filled
|
---|
| 841 | * polygon. */
|
---|
| 842 |
|
---|
| 843 | Point2D *fillPts; /* Malloc'ed array of points used to draw
|
---|
| 844 | * the filled polygon. These points may
|
---|
| 845 | * form a degenerate polygon after clipping.
|
---|
| 846 | */
|
---|
| 847 |
|
---|
| 848 | int nFillPts; /* # points in the above array. */
|
---|
| 849 |
|
---|
| 850 | Segment2D *outlinePts; /* Malloc'ed array of points.
|
---|
| 851 | * Represents individual line segments
|
---|
| 852 | * (2 points per segment) comprising
|
---|
| 853 | * the outline of the polygon. The
|
---|
| 854 | * segments may not necessarily be
|
---|
| 855 | * closed or connected after clipping. */
|
---|
| 856 |
|
---|
| 857 | int nOutlinePts; /* # points in the above array. */
|
---|
| 858 |
|
---|
| 859 | int xor;
|
---|
| 860 | int xorState; /* State of the XOR drawing. Indicates
|
---|
| 861 | * if the marker is visible. We have
|
---|
| 862 | * to drawn it again to erase it. */
|
---|
| 863 | } PolygonMarker;
|
---|
| 864 |
|
---|
| 865 | static Tk_ConfigSpec polygonConfigSpecs[] =
|
---|
| 866 | {
|
---|
| 867 | {TK_CONFIG_CUSTOM, "-bindtags", "bindTags", "BindTags",
|
---|
| 868 | DEF_MARKER_POLYGON_TAGS, Tk_Offset(Marker, tags),
|
---|
| 869 | TK_CONFIG_NULL_OK, &bltListOption},
|
---|
| 870 | {TK_CONFIG_CAP_STYLE, "-cap", "cap", "Cap",
|
---|
| 871 | DEF_MARKER_CAP_STYLE, Tk_Offset(PolygonMarker, capStyle),
|
---|
| 872 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 873 | {TK_CONFIG_CUSTOM, "-coords", "coords", "Coords",
|
---|
| 874 | DEF_MARKER_COORDS, Tk_Offset(Marker, worldPts),
|
---|
| 875 | TK_CONFIG_NULL_OK, &coordsOption},
|
---|
| 876 | {TK_CONFIG_CUSTOM, "-dashes", "dashes", "Dashes",
|
---|
| 877 | DEF_MARKER_DASHES, Tk_Offset(PolygonMarker, dashes),
|
---|
| 878 | TK_CONFIG_NULL_OK, &bltDashesOption},
|
---|
| 879 | {TK_CONFIG_STRING, "-element", "element", "Element",
|
---|
| 880 | DEF_MARKER_ELEMENT, Tk_Offset(Marker, elemName), TK_CONFIG_NULL_OK},
|
---|
| 881 | {TK_CONFIG_CUSTOM, "-fill", "fill", "Fill",
|
---|
| 882 | DEF_MARKER_FILL_COLOR, Tk_Offset(PolygonMarker, fill),
|
---|
| 883 | TK_CONFIG_COLOR_ONLY | TK_CONFIG_NULL_OK, &bltColorPairOption},
|
---|
| 884 | {TK_CONFIG_CUSTOM, "-fill", "fill", "Fill",
|
---|
| 885 | DEF_MARKER_FILL_MONO, Tk_Offset(PolygonMarker, fill),
|
---|
| 886 | TK_CONFIG_MONO_ONLY | TK_CONFIG_NULL_OK, &bltColorPairOption},
|
---|
| 887 | {TK_CONFIG_JOIN_STYLE, "-join", "join", "Join",
|
---|
| 888 | DEF_MARKER_JOIN_STYLE, Tk_Offset(PolygonMarker, joinStyle),
|
---|
| 889 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 890 | {TK_CONFIG_CUSTOM, "-linewidth", "lineWidth", "LineWidth",
|
---|
| 891 | DEF_MARKER_LINE_WIDTH, Tk_Offset(PolygonMarker, lineWidth),
|
---|
| 892 | TK_CONFIG_DONT_SET_DEFAULT, &bltDistanceOption},
|
---|
| 893 | {TK_CONFIG_BOOLEAN, "-hide", "hide", "Hide",
|
---|
| 894 | DEF_MARKER_HIDE, Tk_Offset(Marker, hidden),
|
---|
| 895 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 896 | {TK_CONFIG_CUSTOM, "-mapx", "mapX", "MapX",
|
---|
| 897 | DEF_MARKER_MAP_X, Tk_Offset(Marker, axes.x), 0, &bltXAxisOption},
|
---|
| 898 | {TK_CONFIG_CUSTOM, "-mapy", "mapY", "MapY",
|
---|
| 899 | DEF_MARKER_MAP_Y, Tk_Offset(Marker, axes.y), 0, &bltYAxisOption},
|
---|
| 900 | {TK_CONFIG_STRING, "-name", (char *)NULL, (char *)NULL,
|
---|
| 901 | DEF_MARKER_NAME, Tk_Offset(Marker, name), TK_CONFIG_NULL_OK},
|
---|
| 902 | {TK_CONFIG_CUSTOM, "-outline", "outline", "Outline",
|
---|
| 903 | DEF_MARKER_OUTLINE_COLOR, Tk_Offset(PolygonMarker, outline),
|
---|
| 904 | TK_CONFIG_COLOR_ONLY | TK_CONFIG_NULL_OK, &bltColorPairOption},
|
---|
| 905 | {TK_CONFIG_CUSTOM, "-outline", "outline", "Outline",
|
---|
| 906 | DEF_MARKER_OUTLINE_MONO, Tk_Offset(PolygonMarker, outline),
|
---|
| 907 | TK_CONFIG_MONO_ONLY | TK_CONFIG_NULL_OK, &bltColorPairOption},
|
---|
| 908 | {TK_CONFIG_CUSTOM, "-state", "state", "State",
|
---|
| 909 | DEF_MARKER_STATE, Tk_Offset(Marker, state),
|
---|
| 910 | TK_CONFIG_DONT_SET_DEFAULT, &bltStateOption},
|
---|
| 911 | {TK_CONFIG_BITMAP, "-stipple", "stipple", "Stipple",
|
---|
| 912 | DEF_MARKER_STIPPLE, Tk_Offset(PolygonMarker, stipple),
|
---|
| 913 | TK_CONFIG_NULL_OK},
|
---|
| 914 | {TK_CONFIG_BOOLEAN, "-under", "under", "Under",
|
---|
| 915 | DEF_MARKER_UNDER, Tk_Offset(Marker, drawUnder),
|
---|
| 916 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 917 | {TK_CONFIG_PIXELS, "-xoffset", "xOffset", "XOffset",
|
---|
| 918 | DEF_MARKER_X_OFFSET, Tk_Offset(Marker, xOffset),
|
---|
| 919 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 920 | {TK_CONFIG_BOOLEAN, "-xor", "xor", "Xor",
|
---|
| 921 | DEF_MARKER_XOR, Tk_Offset(PolygonMarker, xor),
|
---|
| 922 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 923 | {TK_CONFIG_PIXELS, "-yoffset", "yOffset", "YOffset",
|
---|
| 924 | DEF_MARKER_Y_OFFSET, Tk_Offset(Marker, yOffset),
|
---|
| 925 | TK_CONFIG_DONT_SET_DEFAULT},
|
---|
| 926 | {TK_CONFIG_END, NULL, NULL, NULL, NULL, 0, 0}
|
---|
| 927 | };
|
---|
| 928 |
|
---|
| 929 | static MarkerCreateProc CreateBitmapMarker, CreateLineMarker, CreateImageMarker,
|
---|
| 930 | CreatePolygonMarker, CreateTextMarker, CreateWindowMarker;
|
---|
| 931 |
|
---|
| 932 | static MarkerDrawProc DrawBitmapMarker, DrawLineMarker, DrawImageMarker,
|
---|
| 933 | DrawPolygonMarker, DrawTextMarker, DrawWindowMarker;
|
---|
| 934 |
|
---|
| 935 | static MarkerFreeProc FreeBitmapMarker, FreeLineMarker, FreeImageMarker,
|
---|
| 936 | FreePolygonMarker, FreeTextMarker, FreeWindowMarker;
|
---|
| 937 |
|
---|
| 938 | static MarkerConfigProc ConfigureBitmapMarker, ConfigureLineMarker,
|
---|
| 939 | ConfigureImageMarker, ConfigurePolygonMarker, ConfigureTextMarker,
|
---|
| 940 | ConfigureWindowMarker;
|
---|
| 941 |
|
---|
| 942 | static MarkerMapProc MapBitmapMarker, MapLineMarker, MapImageMarker,
|
---|
| 943 | MapPolygonMarker, MapTextMarker, MapWindowMarker;
|
---|
| 944 |
|
---|
| 945 | static MarkerPostScriptProc BitmapMarkerToPostScript, LineMarkerToPostScript,
|
---|
| 946 | ImageMarkerToPostScript, PolygonMarkerToPostScript,
|
---|
| 947 | TextMarkerToPostScript, WindowMarkerToPostScript;
|
---|
| 948 |
|
---|
| 949 | static MarkerPointProc PointInBitmapMarker, PointInLineMarker,
|
---|
| 950 | PointInImageMarker, PointInPolygonMarker, PointInTextMarker,
|
---|
| 951 | PointInWindowMarker;
|
---|
| 952 |
|
---|
| 953 | static MarkerRegionProc RegionInBitmapMarker, RegionInLineMarker,
|
---|
| 954 | RegionInImageMarker, RegionInPolygonMarker, RegionInTextMarker,
|
---|
| 955 | RegionInWindowMarker;
|
---|
| 956 |
|
---|
| 957 | static Tk_ImageChangedProc ImageChangedProc;
|
---|
| 958 |
|
---|
| 959 | static MarkerClass bitmapMarkerClass = {
|
---|
| 960 | bitmapConfigSpecs,
|
---|
| 961 | ConfigureBitmapMarker,
|
---|
| 962 | DrawBitmapMarker,
|
---|
| 963 | FreeBitmapMarker,
|
---|
| 964 | MapBitmapMarker,
|
---|
| 965 | PointInBitmapMarker,
|
---|
| 966 | RegionInBitmapMarker,
|
---|
| 967 | BitmapMarkerToPostScript,
|
---|
| 968 | };
|
---|
| 969 |
|
---|
| 970 | static MarkerClass imageMarkerClass = {
|
---|
| 971 | imageConfigSpecs,
|
---|
| 972 | ConfigureImageMarker,
|
---|
| 973 | DrawImageMarker,
|
---|
| 974 | FreeImageMarker,
|
---|
| 975 | MapImageMarker,
|
---|
| 976 | PointInImageMarker,
|
---|
| 977 | RegionInImageMarker,
|
---|
| 978 | ImageMarkerToPostScript,
|
---|
| 979 | };
|
---|
| 980 |
|
---|
| 981 | static MarkerClass lineMarkerClass = {
|
---|
| 982 | lineConfigSpecs,
|
---|
| 983 | ConfigureLineMarker,
|
---|
| 984 | DrawLineMarker,
|
---|
| 985 | FreeLineMarker,
|
---|
| 986 | MapLineMarker,
|
---|
| 987 | PointInLineMarker,
|
---|
| 988 | RegionInLineMarker,
|
---|
| 989 | LineMarkerToPostScript,
|
---|
| 990 | };
|
---|
| 991 |
|
---|
| 992 | static MarkerClass polygonMarkerClass = {
|
---|
| 993 | polygonConfigSpecs,
|
---|
| 994 | ConfigurePolygonMarker,
|
---|
| 995 | DrawPolygonMarker,
|
---|
| 996 | FreePolygonMarker,
|
---|
| 997 | MapPolygonMarker,
|
---|
| 998 | PointInPolygonMarker,
|
---|
| 999 | RegionInPolygonMarker,
|
---|
| 1000 | PolygonMarkerToPostScript,
|
---|
| 1001 | };
|
---|
| 1002 |
|
---|
| 1003 | static MarkerClass textMarkerClass = {
|
---|
| 1004 | textConfigSpecs,
|
---|
| 1005 | ConfigureTextMarker,
|
---|
| 1006 | DrawTextMarker,
|
---|
| 1007 | FreeTextMarker,
|
---|
| 1008 | MapTextMarker,
|
---|
| 1009 | PointInTextMarker,
|
---|
| 1010 | RegionInTextMarker,
|
---|
| 1011 | TextMarkerToPostScript,
|
---|
| 1012 | };
|
---|
| 1013 |
|
---|
| 1014 | static MarkerClass windowMarkerClass = {
|
---|
| 1015 | windowConfigSpecs,
|
---|
| 1016 | ConfigureWindowMarker,
|
---|
| 1017 | DrawWindowMarker,
|
---|
| 1018 | FreeWindowMarker,
|
---|
| 1019 | MapWindowMarker,
|
---|
| 1020 | PointInWindowMarker,
|
---|
| 1021 | RegionInWindowMarker,
|
---|
| 1022 | WindowMarkerToPostScript,
|
---|
| 1023 | };
|
---|
| 1024 |
|
---|
| 1025 | #ifdef notdef
|
---|
| 1026 | static MarkerClass rectangleMarkerClass = {
|
---|
| 1027 | rectangleConfigSpecs,
|
---|
| 1028 | ConfigureRectangleMarker,
|
---|
| 1029 | DrawRectangleMarker,
|
---|
| 1030 | FreeRectangleMarker,
|
---|
| 1031 | MapRectangleMarker,
|
---|
| 1032 | PointInRectangleMarker,
|
---|
| 1033 | RegionInRectangleMarker,
|
---|
| 1034 | RectangleMarkerToPostScript,
|
---|
| 1035 | };
|
---|
| 1036 |
|
---|
| 1037 | static MarkerClass ovalMarkerClass = {
|
---|
| 1038 | ovalConfigSpecs,
|
---|
| 1039 | ConfigureOvalMarker,
|
---|
| 1040 | DrawOvalMarker,
|
---|
| 1041 | FreeOvalMarker,
|
---|
| 1042 | MapOvalMarker,
|
---|
| 1043 | PointInOvalMarker,
|
---|
| 1044 | RegionInOvalMarker,
|
---|
| 1045 | OvalMarkerToPostScript,
|
---|
| 1046 | };
|
---|
| 1047 | #endif
|
---|
| 1048 |
|
---|
| 1049 | /*
|
---|
| 1050 | * ----------------------------------------------------------------------
|
---|
| 1051 | *
|
---|
| 1052 | * BoxesDontOverlap --
|
---|
| 1053 | *
|
---|
| 1054 | * Tests if the bounding box of a marker overlaps the plotting
|
---|
| 1055 | * area in any way. If so, the marker will be drawn. Just do a
|
---|
| 1056 | * min/max test on the extents of both boxes.
|
---|
| 1057 | *
|
---|
| 1058 | * Note: It's assumed that the extents of the bounding box lie
|
---|
| 1059 | * within the area. So for a 10x10 rectangle, bottom and
|
---|
| 1060 | * left would be 9.
|
---|
| 1061 | *
|
---|
| 1062 | * Results:
|
---|
| 1063 | * Returns 0 is the marker is visible in the plotting area, and
|
---|
| 1064 | * 1 otherwise (marker is clipped).
|
---|
| 1065 | *
|
---|
| 1066 | * ----------------------------------------------------------------------
|
---|
| 1067 | */
|
---|
| 1068 | static int
|
---|
| 1069 | BoxesDontOverlap(graphPtr, extsPtr)
|
---|
| 1070 | Graph *graphPtr;
|
---|
| 1071 | Extents2D *extsPtr;
|
---|
| 1072 | {
|
---|
| 1073 | /*
|
---|
| 1074 | assert(extsPtr->right >= extsPtr->left);
|
---|
| 1075 | assert(extsPtr->bottom >= extsPtr->top);
|
---|
| 1076 | assert(graphPtr->right >= graphPtr->left);
|
---|
| 1077 | assert(graphPtr->bottom >= graphPtr->top);
|
---|
| 1078 | */
|
---|
| 1079 |
|
---|
| 1080 | return (((double)graphPtr->right < extsPtr->left) ||
|
---|
| 1081 | ((double)graphPtr->bottom < extsPtr->top) ||
|
---|
| 1082 | (extsPtr->right < (double)graphPtr->left) ||
|
---|
| 1083 | (extsPtr->bottom < (double)graphPtr->top));
|
---|
| 1084 | }
|
---|
| 1085 |
|
---|
| 1086 |
|
---|
| 1087 | /*
|
---|
| 1088 | * ----------------------------------------------------------------------
|
---|
| 1089 | *
|
---|
| 1090 | * GetCoordinate --
|
---|
| 1091 | *
|
---|
| 1092 | * Convert the expression string into a floating point value. The
|
---|
| 1093 | * only reason we use this routine instead of Blt_ExprDouble is to
|
---|
| 1094 | * handle "elastic" bounds. That is, convert the strings "-Inf",
|
---|
| 1095 | * "Inf" into -(DBL_MAX) and DBL_MAX respectively.
|
---|
| 1096 | *
|
---|
| 1097 | * Results:
|
---|
| 1098 | * The return value is a standard Tcl result. The value of the
|
---|
| 1099 | * expression is passed back via valuePtr.
|
---|
| 1100 | *
|
---|
| 1101 | * ----------------------------------------------------------------------
|
---|
| 1102 | */
|
---|
| 1103 | static int
|
---|
| 1104 | GetCoordinate(interp, expr, valuePtr)
|
---|
| 1105 | Tcl_Interp *interp; /* Interpreter to send results back to */
|
---|
| 1106 | char *expr; /* Numeric expression string to parse */
|
---|
| 1107 | double *valuePtr; /* Real-valued result of expression */
|
---|
| 1108 | {
|
---|
| 1109 | char c;
|
---|
| 1110 |
|
---|
| 1111 | c = expr[0];
|
---|
| 1112 | if ((c == 'I') && (strcmp(expr, "Inf") == 0)) {
|
---|
| 1113 | *valuePtr = DBL_MAX; /* Elastic upper bound */
|
---|
| 1114 | } else if ((c == '-') && (expr[1] == 'I') && (strcmp(expr, "-Inf") == 0)) {
|
---|
| 1115 | *valuePtr = -DBL_MAX; /* Elastic lower bound */
|
---|
| 1116 | } else if ((c == '+') && (expr[1] == 'I') && (strcmp(expr, "+Inf") == 0)) {
|
---|
| 1117 | *valuePtr = DBL_MAX; /* Elastic upper bound */
|
---|
| 1118 | } else if (Tcl_ExprDouble(interp, expr, valuePtr) != TCL_OK) {
|
---|
| 1119 | return TCL_ERROR;
|
---|
| 1120 | }
|
---|
| 1121 | return TCL_OK;
|
---|
| 1122 | }
|
---|
| 1123 |
|
---|
| 1124 |
|
---|
| 1125 | /*
|
---|
| 1126 | * ----------------------------------------------------------------------
|
---|
| 1127 | *
|
---|
| 1128 | * PrintCoordinate --
|
---|
| 1129 | *
|
---|
| 1130 | * Convert the floating point value into its string
|
---|
| 1131 | * representation. The only reason this routine is used in
|
---|
| 1132 | * instead of sprintf, is to handle the "elastic" bounds. That
|
---|
| 1133 | * is, convert the values DBL_MAX and -(DBL_MAX) into "+Inf" and
|
---|
| 1134 | * "-Inf" respectively.
|
---|
| 1135 | *
|
---|
| 1136 | * Results:
|
---|
| 1137 | * The return value is a standard Tcl result. The string of the
|
---|
| 1138 | * expression is passed back via string.
|
---|
| 1139 | *
|
---|
| 1140 | * ---------------------------------------------------------------------- */
|
---|
| 1141 | static char *
|
---|
| 1142 | PrintCoordinate(interp, x)
|
---|
| 1143 | Tcl_Interp *interp;
|
---|
| 1144 | double x; /* Numeric value */
|
---|
| 1145 | {
|
---|
| 1146 | if (x == DBL_MAX) {
|
---|
| 1147 | return "+Inf";
|
---|
| 1148 | } else if (x == -DBL_MAX) {
|
---|
| 1149 | return "-Inf";
|
---|
| 1150 | } else {
|
---|
| 1151 | static char string[TCL_DOUBLE_SPACE + 1];
|
---|
| 1152 |
|
---|
| 1153 | Tcl_PrintDouble(interp, (double)x, string);
|
---|
| 1154 | return string;
|
---|
| 1155 | }
|
---|
| 1156 | }
|
---|
| 1157 |
|
---|
| 1158 | /*
|
---|
| 1159 | * ----------------------------------------------------------------------
|
---|
| 1160 | *
|
---|
| 1161 | * ParseCoordinates --
|
---|
| 1162 | *
|
---|
| 1163 | * The Tcl coordinate list is converted to their floating point
|
---|
| 1164 | * values. It will then replace the current marker coordinates.
|
---|
| 1165 | *
|
---|
| 1166 | * Since different marker types require different number of
|
---|
| 1167 | * coordinates this must be checked here.
|
---|
| 1168 | *
|
---|
| 1169 | * Results:
|
---|
| 1170 | * The return value is a standard Tcl result.
|
---|
| 1171 | *
|
---|
| 1172 | * Side effects:
|
---|
| 1173 | * If the marker coordinates are reset, the graph is eventually
|
---|
| 1174 | * redrawn with at the new marker coordinates.
|
---|
| 1175 | *
|
---|
| 1176 | * ----------------------------------------------------------------------
|
---|
| 1177 | */
|
---|
| 1178 | static int
|
---|
| 1179 | ParseCoordinates(interp, markerPtr, nExprs, exprArr)
|
---|
| 1180 | Tcl_Interp *interp;
|
---|
| 1181 | Marker *markerPtr;
|
---|
| 1182 | int nExprs;
|
---|
| 1183 | char **exprArr;
|
---|
| 1184 | {
|
---|
| 1185 | int nWorldPts;
|
---|
| 1186 | int minArgs, maxArgs;
|
---|
| 1187 | Point2D *worldPts;
|
---|
| 1188 | register int i;
|
---|
| 1189 | register Point2D *pointPtr;
|
---|
| 1190 | double x, y;
|
---|
| 1191 |
|
---|
| 1192 | if (nExprs == 0) {
|
---|
| 1193 | return TCL_OK;
|
---|
| 1194 | }
|
---|
| 1195 | if (nExprs & 1) {
|
---|
| 1196 | Tcl_AppendResult(interp, "odd number of marker coordinates specified",
|
---|
| 1197 | (char *)NULL);
|
---|
| 1198 | return TCL_ERROR;
|
---|
| 1199 | }
|
---|
| 1200 | if (markerPtr->classUid == bltLineMarkerUid) {
|
---|
| 1201 | minArgs = 4, maxArgs = 0;
|
---|
| 1202 | } else if (markerPtr->classUid == bltPolygonMarkerUid) {
|
---|
| 1203 | minArgs = 6, maxArgs = 0;
|
---|
| 1204 | } else if ((markerPtr->classUid == bltWindowMarkerUid) ||
|
---|
| 1205 | (markerPtr->classUid == bltTextMarkerUid)) {
|
---|
| 1206 | minArgs = 2, maxArgs = 2;
|
---|
| 1207 | } else if ((markerPtr->classUid == bltImageMarkerUid) ||
|
---|
| 1208 | (markerPtr->classUid == bltBitmapMarkerUid)) {
|
---|
| 1209 | minArgs = 2, maxArgs = 4;
|
---|
| 1210 | } else {
|
---|
| 1211 | Tcl_AppendResult(interp, "unknown marker type", (char *)NULL);
|
---|
| 1212 | return TCL_ERROR;
|
---|
| 1213 | }
|
---|
| 1214 |
|
---|
| 1215 | if (nExprs < minArgs) {
|
---|
| 1216 | Tcl_AppendResult(interp, "too few marker coordinates specified",
|
---|
| 1217 | (char *)NULL);
|
---|
| 1218 | return TCL_ERROR;
|
---|
| 1219 | }
|
---|
| 1220 | if ((maxArgs > 0) && (nExprs > maxArgs)) {
|
---|
| 1221 | Tcl_AppendResult(interp, "too many marker coordinates specified",
|
---|
| 1222 | (char *)NULL);
|
---|
| 1223 | return TCL_ERROR;
|
---|
| 1224 | }
|
---|
| 1225 | nWorldPts = nExprs / 2;
|
---|
| 1226 | worldPts = Blt_Malloc(nWorldPts * sizeof(Point2D));
|
---|
| 1227 | if (worldPts == NULL) {
|
---|
| 1228 | Tcl_AppendResult(interp, "can't allocate new coordinate array",
|
---|
| 1229 | (char *)NULL);
|
---|
| 1230 | return TCL_ERROR;
|
---|
| 1231 | }
|
---|
| 1232 |
|
---|
| 1233 | /* Don't free the old coordinate array until we've parsed the new
|
---|
| 1234 | * coordinates without errors. */
|
---|
| 1235 | pointPtr = worldPts;
|
---|
| 1236 | for (i = 0; i < nExprs; i += 2) {
|
---|
| 1237 | if ((GetCoordinate(interp, exprArr[i], &x) != TCL_OK) ||
|
---|
| 1238 | (GetCoordinate(interp, exprArr[i + 1], &y) != TCL_OK)) {
|
---|
| 1239 | Blt_Free(worldPts);
|
---|
| 1240 | return TCL_ERROR;
|
---|
| 1241 | }
|
---|
| 1242 | pointPtr->x = x, pointPtr->y = y;
|
---|
| 1243 | pointPtr++;
|
---|
| 1244 | }
|
---|
| 1245 | if (markerPtr->worldPts != NULL) {
|
---|
| 1246 | Blt_Free(markerPtr->worldPts);
|
---|
| 1247 | }
|
---|
| 1248 | markerPtr->worldPts = worldPts;
|
---|
| 1249 | markerPtr->nWorldPts = nWorldPts;
|
---|
| 1250 | markerPtr->flags |= MAP_ITEM;
|
---|
| 1251 | return TCL_OK;
|
---|
| 1252 | }
|
---|
| 1253 |
|
---|
| 1254 | /*
|
---|
| 1255 | * ----------------------------------------------------------------------
|
---|
| 1256 | *
|
---|
| 1257 | * StringToCoordinates --
|
---|
| 1258 | *
|
---|
| 1259 | * Given a Tcl list of numeric expression representing the
|
---|
| 1260 | * element values, convert into an array of floating point
|
---|
| 1261 | * values. In addition, the minimum and maximum values are saved.
|
---|
| 1262 | * Since elastic values are allow (values which translate to the
|
---|
| 1263 | * min/max of the graph), we must try to get the non-elastic
|
---|
| 1264 | * minimum and maximum.
|
---|
| 1265 | *
|
---|
| 1266 | * Results:
|
---|
| 1267 | * The return value is a standard Tcl result. The vector is
|
---|
| 1268 | * passed back via the vecPtr.
|
---|
| 1269 | *
|
---|
| 1270 | * ----------------------------------------------------------------------
|
---|
| 1271 | */
|
---|
| 1272 | /*ARGSUSED*/
|
---|
| 1273 | static int
|
---|
| 1274 | StringToCoordinates(clientData, interp, tkwin, string, widgRec, offset)
|
---|
| 1275 | ClientData clientData; /* Not used. */
|
---|
| 1276 | Tcl_Interp *interp; /* Interpreter to send results back to */
|
---|
| 1277 | Tk_Window tkwin; /* Not used. */
|
---|
| 1278 | char *string; /* Tcl list of numeric expressions */
|
---|
| 1279 | char *widgRec; /* Marker record */
|
---|
| 1280 | int offset; /* Not used. */
|
---|
| 1281 | {
|
---|
| 1282 | Marker *markerPtr = (Marker *)widgRec;
|
---|
| 1283 | int nExprs;
|
---|
| 1284 | char **exprArr;
|
---|
| 1285 | int result;
|
---|
| 1286 |
|
---|
| 1287 | nExprs = 0;
|
---|
| 1288 | if ((string != NULL) &&
|
---|
| 1289 | (Tcl_SplitList(interp, string, &nExprs, &exprArr) != TCL_OK)) {
|
---|
| 1290 | return TCL_ERROR;
|
---|
| 1291 | }
|
---|
| 1292 | if (nExprs == 0) {
|
---|
| 1293 | if (markerPtr->worldPts != NULL) {
|
---|
| 1294 | Blt_Free(markerPtr->worldPts);
|
---|
| 1295 | markerPtr->worldPts = NULL;
|
---|
| 1296 | }
|
---|
| 1297 | markerPtr->nWorldPts = 0;
|
---|
| 1298 | return TCL_OK;
|
---|
| 1299 | }
|
---|
| 1300 | result = ParseCoordinates(interp, markerPtr, nExprs, exprArr);
|
---|
| 1301 | Blt_Free(exprArr);
|
---|
| 1302 | return result;
|
---|
| 1303 | }
|
---|
| 1304 |
|
---|
| 1305 | /*
|
---|
| 1306 | * ----------------------------------------------------------------------
|
---|
| 1307 | *
|
---|
| 1308 | * CoordinatesToString --
|
---|
| 1309 | *
|
---|
| 1310 | * Convert the vector of floating point values into a Tcl list.
|
---|
| 1311 | *
|
---|
| 1312 | * Results:
|
---|
| 1313 | * The string representation of the vector is returned.
|
---|
| 1314 | *
|
---|
| 1315 | * ----------------------------------------------------------------------
|
---|
| 1316 | */
|
---|
| 1317 | /*ARGSUSED*/
|
---|
| 1318 | static char *
|
---|
| 1319 | CoordinatesToString(clientData, tkwin, widgRec, offset, freeProcPtr)
|
---|
| 1320 | ClientData clientData; /* Not used. */
|
---|
| 1321 | Tk_Window tkwin; /* Not used. */
|
---|
| 1322 | char *widgRec; /* Marker record */
|
---|
| 1323 | int offset; /* Not used. */
|
---|
| 1324 | Tcl_FreeProc **freeProcPtr; /* Memory deallocation scheme to use */
|
---|
| 1325 | {
|
---|
| 1326 | Marker *markerPtr = (Marker *)widgRec;
|
---|
| 1327 | Tcl_Interp *interp;
|
---|
| 1328 | Tcl_DString dString;
|
---|
| 1329 | char *result;
|
---|
| 1330 | register int i;
|
---|
| 1331 | register Point2D *p;
|
---|
| 1332 |
|
---|
| 1333 | if (markerPtr->nWorldPts < 1) {
|
---|
| 1334 | return "";
|
---|
| 1335 | }
|
---|
| 1336 | interp = markerPtr->graphPtr->interp;
|
---|
| 1337 |
|
---|
| 1338 | Tcl_DStringInit(&dString);
|
---|
| 1339 | p = markerPtr->worldPts;
|
---|
| 1340 | for (i = 0; i < markerPtr->nWorldPts; i++) {
|
---|
| 1341 | Tcl_DStringAppendElement(&dString, PrintCoordinate(interp, p->x));
|
---|
| 1342 | Tcl_DStringAppendElement(&dString, PrintCoordinate(interp, p->y));
|
---|
| 1343 | p++;
|
---|
| 1344 | }
|
---|
| 1345 | result = Tcl_DStringValue(&dString);
|
---|
| 1346 |
|
---|
| 1347 | /*
|
---|
| 1348 | * If memory wasn't allocated for the dynamic string, do it here (it's
|
---|
| 1349 | * currently on the stack), so that Tcl can free it normally.
|
---|
| 1350 | */
|
---|
| 1351 | if (result == dString.staticSpace) {
|
---|
| 1352 | result = Blt_Strdup(result);
|
---|
| 1353 | }
|
---|
| 1354 | *freeProcPtr = (Tcl_FreeProc *)Blt_Free;
|
---|
| 1355 | return result;
|
---|
| 1356 | }
|
---|
| 1357 |
|
---|
| 1358 | /*
|
---|
| 1359 | * ----------------------------------------------------------------------
|
---|
| 1360 | *
|
---|
| 1361 | * HMap --
|
---|
| 1362 | *
|
---|
| 1363 | * Map the given graph coordinate value to its axis, returning a
|
---|
| 1364 | * window position.
|
---|
| 1365 | *
|
---|
| 1366 | * Results:
|
---|
| 1367 | * Returns a floating point number representing the window
|
---|
| 1368 | * coordinate position on the given axis.
|
---|
| 1369 | *
|
---|
| 1370 | * ----------------------------------------------------------------------
|
---|
| 1371 | */
|
---|
| 1372 | static double
|
---|
| 1373 | HMap(graphPtr, axisPtr, x)
|
---|
| 1374 | Graph *graphPtr;
|
---|
| 1375 | Axis *axisPtr;
|
---|
| 1376 | double x;
|
---|
| 1377 | {
|
---|
| 1378 | register double norm;
|
---|
| 1379 |
|
---|
| 1380 | if (x == DBL_MAX) {
|
---|
| 1381 | norm = 1.0;
|
---|
| 1382 | } else if (x == -DBL_MAX) {
|
---|
| 1383 | norm = 0.0;
|
---|
| 1384 | } else {
|
---|
| 1385 | if (axisPtr->logScale) {
|
---|
| 1386 | if (x > 0.0) {
|
---|
| 1387 | x = log10(x);
|
---|
| 1388 | } else if (x < 0.0) {
|
---|
| 1389 | x = 0.0;
|
---|
| 1390 | }
|
---|
| 1391 | }
|
---|
| 1392 | norm = NORMALIZE(axisPtr, x);
|
---|
| 1393 | }
|
---|
| 1394 | if (axisPtr->descending) {
|
---|
| 1395 | norm = 1.0 - norm;
|
---|
| 1396 | }
|
---|
| 1397 | /* Horizontal transformation */
|
---|
| 1398 | return ((norm * graphPtr->hRange) + graphPtr->hOffset);
|
---|
| 1399 | }
|
---|
| 1400 |
|
---|
| 1401 | /*
|
---|
| 1402 | * ----------------------------------------------------------------------
|
---|
| 1403 | *
|
---|
| 1404 | * VMap --
|
---|
| 1405 | *
|
---|
| 1406 | * Map the given graph coordinate value to its axis, returning a
|
---|
| 1407 | * window position.
|
---|
| 1408 | *
|
---|
| 1409 | * Results:
|
---|
| 1410 | * Returns a double precision number representing the window
|
---|
| 1411 | * coordinate position on the given axis.
|
---|
| 1412 | *
|
---|
| 1413 | * ----------------------------------------------------------------------
|
---|
| 1414 | */
|
---|
| 1415 | static double
|
---|
| 1416 | VMap(graphPtr, axisPtr, y)
|
---|
| 1417 | Graph *graphPtr;
|
---|
| 1418 | Axis *axisPtr;
|
---|
| 1419 | double y;
|
---|
| 1420 | {
|
---|
| 1421 | register double norm;
|
---|
| 1422 |
|
---|
| 1423 | if (y == DBL_MAX) {
|
---|
| 1424 | norm = 1.0;
|
---|
| 1425 | } else if (y == -DBL_MAX) {
|
---|
| 1426 | norm = 0.0;
|
---|
| 1427 | } else {
|
---|
| 1428 | if (axisPtr->logScale) {
|
---|
| 1429 | if (y > 0.0) {
|
---|
| 1430 | y = log10(y);
|
---|
| 1431 | } else if (y < 0.0) {
|
---|
| 1432 | y = 0.0;
|
---|
| 1433 | }
|
---|
| 1434 | }
|
---|
| 1435 | norm = NORMALIZE(axisPtr, y);
|
---|
| 1436 | }
|
---|
| 1437 | if (axisPtr->descending) {
|
---|
| 1438 | norm = 1.0 - norm;
|
---|
| 1439 | }
|
---|
| 1440 | /* Vertical transformation */
|
---|
| 1441 | return (((1.0 - norm) * graphPtr->vRange) + graphPtr->vOffset);
|
---|
| 1442 | }
|
---|
| 1443 |
|
---|
| 1444 | /*
|
---|
| 1445 | * ----------------------------------------------------------------------
|
---|
| 1446 | *
|
---|
| 1447 | * MapPoint --
|
---|
| 1448 | *
|
---|
| 1449 | * Maps the given graph x,y coordinate values to a window position.
|
---|
| 1450 | *
|
---|
| 1451 | * Results:
|
---|
| 1452 | * Returns a XPoint structure containing the window coordinates
|
---|
| 1453 | * of the given graph x,y coordinate.
|
---|
| 1454 | *
|
---|
| 1455 | * ----------------------------------------------------------------------
|
---|
| 1456 | */
|
---|
| 1457 | static Point2D
|
---|
| 1458 | MapPoint(graphPtr, pointPtr, axesPtr)
|
---|
| 1459 | Graph *graphPtr;
|
---|
| 1460 | Point2D *pointPtr; /* Graph X-Y coordinate. */
|
---|
| 1461 | Axis2D *axesPtr; /* Specifies which axes to use */
|
---|
| 1462 | {
|
---|
| 1463 | Point2D result;
|
---|
| 1464 |
|
---|
| 1465 | if (graphPtr->inverted) {
|
---|
| 1466 | result.x = HMap(graphPtr, axesPtr->y, pointPtr->y);
|
---|
| 1467 | result.y = VMap(graphPtr, axesPtr->x, pointPtr->x);
|
---|
| 1468 | } else {
|
---|
| 1469 | result.x = HMap(graphPtr, axesPtr->x, pointPtr->x);
|
---|
| 1470 | result.y = VMap(graphPtr, axesPtr->y, pointPtr->y);
|
---|
| 1471 | }
|
---|
| 1472 | return result; /* Result is screen coordinate. */
|
---|
| 1473 | }
|
---|
| 1474 |
|
---|
| 1475 | static Marker *
|
---|
| 1476 | CreateMarker(graphPtr, name, classUid)
|
---|
| 1477 | Graph *graphPtr;
|
---|
| 1478 | char *name;
|
---|
| 1479 | Blt_Uid classUid;
|
---|
| 1480 | {
|
---|
| 1481 | Marker *markerPtr;
|
---|
| 1482 |
|
---|
| 1483 | /* Create the new marker based upon the given type */
|
---|
| 1484 | if (classUid == bltBitmapMarkerUid) {
|
---|
| 1485 | markerPtr = CreateBitmapMarker(); /* bitmap */
|
---|
| 1486 | } else if (classUid == bltLineMarkerUid) {
|
---|
| 1487 | markerPtr = CreateLineMarker(); /* line */
|
---|
| 1488 | } else if (classUid == bltImageMarkerUid) {
|
---|
| 1489 | markerPtr = CreateImageMarker(); /* image */
|
---|
| 1490 | } else if (classUid == bltTextMarkerUid) {
|
---|
| 1491 | markerPtr = CreateTextMarker(); /* text */
|
---|
| 1492 | } else if (classUid == bltPolygonMarkerUid) {
|
---|
| 1493 | markerPtr = CreatePolygonMarker(); /* polygon */
|
---|
| 1494 | } else if (classUid == bltWindowMarkerUid) {
|
---|
| 1495 | markerPtr = CreateWindowMarker(); /* window */
|
---|
| 1496 | } else {
|
---|
| 1497 | return NULL;
|
---|
| 1498 | }
|
---|
| 1499 | assert(markerPtr);
|
---|
| 1500 | markerPtr->graphPtr = graphPtr;
|
---|
| 1501 | markerPtr->hidden = markerPtr->drawUnder = FALSE;
|
---|
| 1502 | markerPtr->flags |= MAP_ITEM;
|
---|
| 1503 | markerPtr->name = Blt_Strdup(name);
|
---|
| 1504 | markerPtr->classUid = classUid;
|
---|
| 1505 | return markerPtr;
|
---|
| 1506 | }
|
---|
| 1507 |
|
---|
| 1508 | static void
|
---|
| 1509 | DestroyMarker(markerPtr)
|
---|
| 1510 | Marker *markerPtr;
|
---|
| 1511 | {
|
---|
| 1512 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 1513 |
|
---|
| 1514 | if (markerPtr->drawUnder) {
|
---|
| 1515 | graphPtr->flags |= REDRAW_BACKING_STORE;
|
---|
| 1516 | }
|
---|
| 1517 | /* Free the resources allocated for the particular type of marker */
|
---|
| 1518 | (*markerPtr->classPtr->freeProc) (graphPtr, markerPtr);
|
---|
| 1519 | if (markerPtr->worldPts != NULL) {
|
---|
| 1520 | Blt_Free(markerPtr->worldPts);
|
---|
| 1521 | }
|
---|
| 1522 | Blt_DeleteBindings(graphPtr->bindTable, markerPtr);
|
---|
| 1523 | Tk_FreeOptions(markerPtr->classPtr->configSpecs, (char *)markerPtr,
|
---|
| 1524 | graphPtr->display, 0);
|
---|
| 1525 | if (markerPtr->hashPtr != NULL) {
|
---|
| 1526 | Blt_DeleteHashEntry(&graphPtr->markers.table, markerPtr->hashPtr);
|
---|
| 1527 | }
|
---|
| 1528 | if (markerPtr->linkPtr != NULL) {
|
---|
| 1529 | Blt_ChainDeleteLink(graphPtr->markers.displayList, markerPtr->linkPtr);
|
---|
| 1530 | }
|
---|
| 1531 | if (markerPtr->name != NULL) {
|
---|
| 1532 | Blt_Free(markerPtr->name);
|
---|
| 1533 | }
|
---|
| 1534 | if (markerPtr->elemName != NULL) {
|
---|
| 1535 | Blt_Free(markerPtr->elemName);
|
---|
| 1536 | }
|
---|
| 1537 | if (markerPtr->tags != NULL) {
|
---|
| 1538 | Blt_Free(markerPtr->tags);
|
---|
| 1539 | }
|
---|
| 1540 | Blt_Free(markerPtr);
|
---|
| 1541 | }
|
---|
| 1542 |
|
---|
| 1543 | /*
|
---|
| 1544 | * ----------------------------------------------------------------------
|
---|
| 1545 | *
|
---|
| 1546 | * ConfigureBitmapMarker --
|
---|
| 1547 | *
|
---|
| 1548 | * This procedure is called to process an argv/argc list, plus
|
---|
| 1549 | * the Tk option database, in order to configure (or reconfigure)
|
---|
| 1550 | * a bitmap marker.
|
---|
| 1551 | *
|
---|
| 1552 | * Results:
|
---|
| 1553 | * A standard Tcl result. If TCL_ERROR is returned, then
|
---|
| 1554 | * interp->result contains an error message.
|
---|
| 1555 | *
|
---|
| 1556 | * Side effects:
|
---|
| 1557 | * Configuration information, such as bitmap pixmap, colors,
|
---|
| 1558 | * rotation, etc. get set for markerPtr; old resources get freed,
|
---|
| 1559 | * if there were any. The marker is eventually redisplayed.
|
---|
| 1560 | *
|
---|
| 1561 | * ----------------------------------------------------------------------
|
---|
| 1562 | */
|
---|
| 1563 | /* ARGSUSED */
|
---|
| 1564 | static int
|
---|
| 1565 | ConfigureBitmapMarker(markerPtr)
|
---|
| 1566 | Marker *markerPtr;
|
---|
| 1567 | {
|
---|
| 1568 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 1569 | BitmapMarker *bmPtr = (BitmapMarker *)markerPtr;
|
---|
| 1570 | GC newGC;
|
---|
| 1571 | XGCValues gcValues;
|
---|
| 1572 | unsigned long gcMask;
|
---|
| 1573 |
|
---|
| 1574 | if (bmPtr->srcBitmap == None) {
|
---|
| 1575 | return TCL_OK;
|
---|
| 1576 | }
|
---|
| 1577 | bmPtr->theta = FMOD(bmPtr->rotate, 360.0);
|
---|
| 1578 | if (bmPtr->theta < 0.0) {
|
---|
| 1579 | bmPtr->theta += 360.0;
|
---|
| 1580 | }
|
---|
| 1581 | gcMask = 0;
|
---|
| 1582 | if (bmPtr->outlineColor != NULL) {
|
---|
| 1583 | gcMask |= GCForeground;
|
---|
| 1584 | gcValues.foreground = bmPtr->outlineColor->pixel;
|
---|
| 1585 | }
|
---|
| 1586 | if (bmPtr->fillColor != NULL) {
|
---|
| 1587 | gcValues.background = bmPtr->fillColor->pixel;
|
---|
| 1588 | gcMask |= GCBackground;
|
---|
| 1589 | } else {
|
---|
| 1590 | gcValues.clip_mask = bmPtr->srcBitmap;
|
---|
| 1591 | gcMask |= GCClipMask;
|
---|
| 1592 | }
|
---|
| 1593 |
|
---|
| 1594 | /* Note that while this is a "shared" GC, we're going to change
|
---|
| 1595 | * the clip origin right before the bitmap is drawn anyways. This
|
---|
| 1596 | * assumes that any drawing code using this GC (with GCClipMask
|
---|
| 1597 | * set) is going to want to set the clip origin anyways. */
|
---|
| 1598 | newGC = Tk_GetGC(graphPtr->tkwin, gcMask, &gcValues);
|
---|
| 1599 | if (bmPtr->gc != NULL) {
|
---|
| 1600 | Tk_FreeGC(graphPtr->display, bmPtr->gc);
|
---|
| 1601 | }
|
---|
| 1602 | bmPtr->gc = newGC;
|
---|
| 1603 |
|
---|
| 1604 | /* Create background GC color */
|
---|
| 1605 |
|
---|
| 1606 | if (bmPtr->fillColor != NULL) {
|
---|
| 1607 | gcValues.foreground = bmPtr->fillColor->pixel;
|
---|
| 1608 | newGC = Tk_GetGC(graphPtr->tkwin, gcMask, &gcValues);
|
---|
| 1609 | if (bmPtr->fillGC != NULL) {
|
---|
| 1610 | Tk_FreeGC(graphPtr->display, bmPtr->fillGC);
|
---|
| 1611 | }
|
---|
| 1612 | bmPtr->fillGC = newGC;
|
---|
| 1613 | }
|
---|
| 1614 | bmPtr->flags |= MAP_ITEM;
|
---|
| 1615 | if (bmPtr->drawUnder) {
|
---|
| 1616 | graphPtr->flags |= REDRAW_BACKING_STORE;
|
---|
| 1617 | }
|
---|
| 1618 | Blt_EventuallyRedrawGraph(graphPtr);
|
---|
| 1619 | return TCL_OK;
|
---|
| 1620 | }
|
---|
| 1621 |
|
---|
| 1622 | /*
|
---|
| 1623 | * ----------------------------------------------------------------------
|
---|
| 1624 | *
|
---|
| 1625 | * MapBitmapMarker --
|
---|
| 1626 | *
|
---|
| 1627 | * This procedure gets called each time the layout of the graph
|
---|
| 1628 | * changes. The x, y window coordinates of the bitmap marker are
|
---|
| 1629 | * saved in the marker structure.
|
---|
| 1630 | *
|
---|
| 1631 | * Additionly, if no background color was specified, the
|
---|
| 1632 | * GCTileStipXOrigin and GCTileStipYOrigin attributes are set in
|
---|
| 1633 | * the private GC.
|
---|
| 1634 | *
|
---|
| 1635 | * Results:
|
---|
| 1636 | * None.
|
---|
| 1637 | *
|
---|
| 1638 | * Side effects:
|
---|
| 1639 | * Window coordinates are saved and if no background color was
|
---|
| 1640 | * set, the GC stipple origins are changed to calculated window
|
---|
| 1641 | * coordinates.
|
---|
| 1642 | *
|
---|
| 1643 | * ----------------------------------------------------------------------
|
---|
| 1644 | */
|
---|
| 1645 | static void
|
---|
| 1646 | MapBitmapMarker(markerPtr)
|
---|
| 1647 | Marker *markerPtr;
|
---|
| 1648 | {
|
---|
| 1649 | BitmapMarker *bmPtr = (BitmapMarker *)markerPtr;
|
---|
| 1650 | Extents2D exts;
|
---|
| 1651 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 1652 | Point2D anchorPos;
|
---|
| 1653 | Point2D corner1, corner2;
|
---|
| 1654 | int destWidth, destHeight;
|
---|
| 1655 | int srcWidth, srcHeight;
|
---|
| 1656 | register int i;
|
---|
| 1657 |
|
---|
| 1658 | if (bmPtr->srcBitmap == None) {
|
---|
| 1659 | return;
|
---|
| 1660 | }
|
---|
| 1661 | if (bmPtr->destBitmap != None) {
|
---|
| 1662 | Tk_FreePixmap(graphPtr->display, bmPtr->destBitmap);
|
---|
| 1663 | bmPtr->destBitmap = None;
|
---|
| 1664 | }
|
---|
| 1665 | /*
|
---|
| 1666 | * Collect the coordinates. The number of coordinates will determine
|
---|
| 1667 | * the calculations to be made.
|
---|
| 1668 | *
|
---|
| 1669 | * x1 y1 A single pair of X-Y coordinates. They represent
|
---|
| 1670 | * the anchor position of the bitmap.
|
---|
| 1671 | *
|
---|
| 1672 | * x1 y1 x2 y2 Two pairs of X-Y coordinates. They represent
|
---|
| 1673 | * two opposite corners of a bounding rectangle. The
|
---|
| 1674 | * bitmap is possibly rotated and scaled to fit into
|
---|
| 1675 | * this box.
|
---|
| 1676 | *
|
---|
| 1677 | */
|
---|
| 1678 | Tk_SizeOfBitmap(graphPtr->display, bmPtr->srcBitmap, &srcWidth,
|
---|
| 1679 | &srcHeight);
|
---|
| 1680 | corner1 = MapPoint(graphPtr, bmPtr->worldPts, &bmPtr->axes);
|
---|
| 1681 | if (bmPtr->nWorldPts > 1) {
|
---|
| 1682 | double hold;
|
---|
| 1683 |
|
---|
| 1684 | corner2 = MapPoint(graphPtr, bmPtr->worldPts + 1, &bmPtr->axes);
|
---|
| 1685 | /* Flip the corners if necessary */
|
---|
| 1686 | if (corner1.x > corner2.x) {
|
---|
| 1687 | hold = corner1.x, corner1.x = corner2.x, corner2.x = hold;
|
---|
| 1688 | }
|
---|
| 1689 | if (corner1.y > corner2.y) {
|
---|
| 1690 | hold = corner1.y, corner1.y = corner2.y, corner2.y = hold;
|
---|
| 1691 | }
|
---|
| 1692 | } else {
|
---|
| 1693 | corner2.x = corner1.x + srcWidth - 1;
|
---|
| 1694 | corner2.y = corner1.y + srcHeight - 1;
|
---|
| 1695 | }
|
---|
| 1696 | destWidth = (int)(corner2.x - corner1.x) + 1;
|
---|
| 1697 | destHeight = (int)(corner2.y - corner1.y) + 1;
|
---|
| 1698 |
|
---|
| 1699 | if (bmPtr->nWorldPts == 1) {
|
---|
| 1700 | anchorPos = Blt_TranslatePoint(&corner1, destWidth, destHeight,
|
---|
| 1701 | bmPtr->anchor);
|
---|
| 1702 | } else {
|
---|
| 1703 | anchorPos = corner1;
|
---|
| 1704 | }
|
---|
| 1705 | anchorPos.x += bmPtr->xOffset;
|
---|
| 1706 | anchorPos.y += bmPtr->yOffset;
|
---|
| 1707 |
|
---|
| 1708 | /* Check if the bitmap sits at least partially in the plot area. */
|
---|
| 1709 | exts.left = anchorPos.x;
|
---|
| 1710 | exts.top = anchorPos.y;
|
---|
| 1711 | exts.right = anchorPos.x + destWidth - 1;
|
---|
| 1712 | exts.bottom = anchorPos.y + destHeight - 1;
|
---|
| 1713 |
|
---|
| 1714 | bmPtr->clipped = BoxesDontOverlap(graphPtr, &exts);
|
---|
| 1715 | if (bmPtr->clipped) {
|
---|
| 1716 | return; /* Bitmap is offscreen. Don't generate
|
---|
| 1717 | * rotated or scaled bitmaps. */
|
---|
| 1718 | }
|
---|
| 1719 |
|
---|
| 1720 | /*
|
---|
| 1721 | * Scale the bitmap if necessary. It's a little tricky because we
|
---|
| 1722 | * only want to scale what's visible on the screen, not the entire
|
---|
| 1723 | * bitmap.
|
---|
| 1724 | */
|
---|
| 1725 | if ((bmPtr->theta != 0.0) || (destWidth != srcWidth) ||
|
---|
| 1726 | (destHeight != srcHeight)) {
|
---|
| 1727 | int regionWidth, regionHeight;
|
---|
| 1728 | Region2D region; /* Indicates the portion of the scaled
|
---|
| 1729 | * bitmap that we want to display. */
|
---|
| 1730 | double left, right, top, bottom;
|
---|
| 1731 |
|
---|
| 1732 | /*
|
---|
| 1733 | * Determine the region of the bitmap visible in the plot area.
|
---|
| 1734 | */
|
---|
| 1735 | left = MAX(graphPtr->left, exts.left);
|
---|
| 1736 | right = MIN(graphPtr->right, exts.right);
|
---|
| 1737 | top = MAX(graphPtr->top, exts.top);
|
---|
| 1738 | bottom = MIN(graphPtr->bottom, exts.bottom);
|
---|
| 1739 |
|
---|
| 1740 | region.left = region.top = 0;
|
---|
| 1741 | if (graphPtr->left > exts.left) {
|
---|
| 1742 | region.left = (int)(graphPtr->left - exts.left);
|
---|
| 1743 | }
|
---|
| 1744 | if (graphPtr->top > exts.top) {
|
---|
| 1745 | region.top = (int)(graphPtr->top - exts.top);
|
---|
| 1746 | }
|
---|
| 1747 | regionWidth = (int)(right - left) + 1;
|
---|
| 1748 | regionHeight = (int)(bottom - top) + 1;
|
---|
| 1749 | region.right = region.left + (int)(right - left);
|
---|
| 1750 | region.bottom = region.top + (int)(bottom - top);
|
---|
| 1751 |
|
---|
| 1752 | anchorPos.x = left;
|
---|
| 1753 | anchorPos.y = top;
|
---|
| 1754 | bmPtr->destBitmap = Blt_ScaleRotateBitmapRegion(graphPtr->tkwin,
|
---|
| 1755 | bmPtr->srcBitmap, srcWidth, srcHeight,
|
---|
| 1756 | region.left, region.top, regionWidth, regionHeight,
|
---|
| 1757 | destWidth, destHeight, bmPtr->theta);
|
---|
| 1758 | bmPtr->destWidth = regionWidth;
|
---|
| 1759 | bmPtr->destHeight = regionHeight;
|
---|
| 1760 | } else {
|
---|
| 1761 | bmPtr->destWidth = srcWidth;
|
---|
| 1762 | bmPtr->destHeight = srcHeight;
|
---|
| 1763 | bmPtr->destBitmap = None;
|
---|
| 1764 | }
|
---|
| 1765 | bmPtr->anchorPos = anchorPos;
|
---|
| 1766 | {
|
---|
| 1767 | double xScale, yScale;
|
---|
| 1768 | double tx, ty;
|
---|
| 1769 | double rotWidth, rotHeight;
|
---|
| 1770 | Point2D polygon[5];
|
---|
| 1771 | int n;
|
---|
| 1772 |
|
---|
| 1773 | /*
|
---|
| 1774 | * Compute a polygon to represent the background area of the bitmap.
|
---|
| 1775 | * This is needed for backgrounds of arbitrarily rotated bitmaps.
|
---|
| 1776 | * We also use it to print a background in PostScript.
|
---|
| 1777 | */
|
---|
| 1778 | Blt_GetBoundingBox(srcWidth, srcHeight, bmPtr->theta, &rotWidth,
|
---|
| 1779 | &rotHeight, polygon);
|
---|
| 1780 | xScale = (double)destWidth / rotWidth;
|
---|
| 1781 | yScale = (double)destHeight / rotHeight;
|
---|
| 1782 |
|
---|
| 1783 | /*
|
---|
| 1784 | * Adjust each point of the polygon. Both scale it to the new size
|
---|
| 1785 | * and translate it to the actual screen position of the bitmap.
|
---|
| 1786 | */
|
---|
| 1787 | tx = exts.left + destWidth * 0.5;
|
---|
| 1788 | ty = exts.top + destHeight * 0.5;
|
---|
| 1789 | for (i = 0; i < 4; i++) {
|
---|
| 1790 | polygon[i].x = (polygon[i].x * xScale) + tx;
|
---|
| 1791 | polygon[i].y = (polygon[i].y * yScale) + ty;
|
---|
| 1792 | }
|
---|
| 1793 | Blt_GraphExtents(graphPtr, &exts);
|
---|
| 1794 | n = Blt_PolyRectClip(&exts, polygon, 4, bmPtr->outline);
|
---|
| 1795 | assert(n <= MAX_OUTLINE_POINTS);
|
---|
| 1796 | if (n < 3) {
|
---|
| 1797 | memcpy(&bmPtr->outline, polygon, sizeof(Point2D) * 4);
|
---|
| 1798 | bmPtr->nOutlinePts = 4;
|
---|
| 1799 | } else {
|
---|
| 1800 | bmPtr->nOutlinePts = n;
|
---|
| 1801 | }
|
---|
| 1802 | }
|
---|
| 1803 | }
|
---|
| 1804 |
|
---|
| 1805 | /*
|
---|
| 1806 | * ----------------------------------------------------------------------
|
---|
| 1807 | *
|
---|
| 1808 | * PointInBitmapMarker --
|
---|
| 1809 | *
|
---|
| 1810 | * Indicates if the given point is over the bitmap marker. The
|
---|
| 1811 | * area of the bitmap is the rectangle.
|
---|
| 1812 | *
|
---|
| 1813 | * Results:
|
---|
| 1814 | * Returns 1 is the point is over the bitmap marker, 0 otherwise.
|
---|
| 1815 | *
|
---|
| 1816 | * ----------------------------------------------------------------------
|
---|
| 1817 | */
|
---|
| 1818 | static int
|
---|
| 1819 | PointInBitmapMarker(markerPtr, samplePtr)
|
---|
| 1820 | Marker *markerPtr;
|
---|
| 1821 | Point2D *samplePtr;
|
---|
| 1822 | {
|
---|
| 1823 | BitmapMarker *bmPtr = (BitmapMarker *)markerPtr;
|
---|
| 1824 |
|
---|
| 1825 | if (bmPtr->srcBitmap == None) {
|
---|
| 1826 | return 0;
|
---|
| 1827 | }
|
---|
| 1828 | if (bmPtr->theta != 0.0) {
|
---|
| 1829 | Point2D points[MAX_OUTLINE_POINTS];
|
---|
| 1830 | register int i;
|
---|
| 1831 |
|
---|
| 1832 | /*
|
---|
| 1833 | * Generate the bounding polygon (isolateral) for the bitmap
|
---|
| 1834 | * and see if the point is inside of it.
|
---|
| 1835 | */
|
---|
| 1836 | for (i = 0; i < bmPtr->nOutlinePts; i++) {
|
---|
| 1837 | points[i].x = bmPtr->outline[i].x + bmPtr->anchorPos.x;
|
---|
| 1838 | points[i].y = bmPtr->outline[i].y + bmPtr->anchorPos.y;
|
---|
| 1839 | }
|
---|
| 1840 | return Blt_PointInPolygon(samplePtr, points, bmPtr->nOutlinePts);
|
---|
| 1841 | }
|
---|
| 1842 | return ((samplePtr->x >= bmPtr->anchorPos.x) &&
|
---|
| 1843 | (samplePtr->x < (bmPtr->anchorPos.x + bmPtr->destWidth)) &&
|
---|
| 1844 | (samplePtr->y >= bmPtr->anchorPos.y) &&
|
---|
| 1845 | (samplePtr->y < (bmPtr->anchorPos.y + bmPtr->destHeight)));
|
---|
| 1846 | }
|
---|
| 1847 |
|
---|
| 1848 |
|
---|
| 1849 | /*
|
---|
| 1850 | * ----------------------------------------------------------------------
|
---|
| 1851 | *
|
---|
| 1852 | * RegionInBitmapMarker --
|
---|
| 1853 | *
|
---|
| 1854 | * ----------------------------------------------------------------------
|
---|
| 1855 | */
|
---|
| 1856 | static int
|
---|
| 1857 | RegionInBitmapMarker(markerPtr, extsPtr, enclosed)
|
---|
| 1858 | Marker *markerPtr;
|
---|
| 1859 | Extents2D *extsPtr;
|
---|
| 1860 | int enclosed;
|
---|
| 1861 | {
|
---|
| 1862 | BitmapMarker *bmPtr = (BitmapMarker *)markerPtr;
|
---|
| 1863 |
|
---|
| 1864 | if (bmPtr->nWorldPts < 1) {
|
---|
| 1865 | return FALSE;
|
---|
| 1866 | }
|
---|
| 1867 | if (bmPtr->theta != 0.0) {
|
---|
| 1868 | Point2D points[MAX_OUTLINE_POINTS];
|
---|
| 1869 | register int i;
|
---|
| 1870 |
|
---|
| 1871 | /*
|
---|
| 1872 | * Generate the bounding polygon (isolateral) for the bitmap
|
---|
| 1873 | * and see if the point is inside of it.
|
---|
| 1874 | */
|
---|
| 1875 | for (i = 0; i < bmPtr->nOutlinePts; i++) {
|
---|
| 1876 | points[i].x = bmPtr->outline[i].x + bmPtr->anchorPos.x;
|
---|
| 1877 | points[i].y = bmPtr->outline[i].y + bmPtr->anchorPos.y;
|
---|
| 1878 | }
|
---|
| 1879 | return Blt_RegionInPolygon(extsPtr, points, bmPtr->nOutlinePts,
|
---|
| 1880 | enclosed);
|
---|
| 1881 | }
|
---|
| 1882 | if (enclosed) {
|
---|
| 1883 | return ((bmPtr->anchorPos.x >= extsPtr->left) &&
|
---|
| 1884 | (bmPtr->anchorPos.y >= extsPtr->top) &&
|
---|
| 1885 | ((bmPtr->anchorPos.x + bmPtr->destWidth) <= extsPtr->right) &&
|
---|
| 1886 | ((bmPtr->anchorPos.y + bmPtr->destHeight) <= extsPtr->bottom));
|
---|
| 1887 | }
|
---|
| 1888 | return !((bmPtr->anchorPos.x >= extsPtr->right) ||
|
---|
| 1889 | (bmPtr->anchorPos.y >= extsPtr->bottom) ||
|
---|
| 1890 | ((bmPtr->anchorPos.x + bmPtr->destWidth) <= extsPtr->left) ||
|
---|
| 1891 | ((bmPtr->anchorPos.y + bmPtr->destHeight) <= extsPtr->top));
|
---|
| 1892 | }
|
---|
| 1893 |
|
---|
| 1894 | /*
|
---|
| 1895 | * ----------------------------------------------------------------------
|
---|
| 1896 | *
|
---|
| 1897 | * DrawBitmapMarker --
|
---|
| 1898 | *
|
---|
| 1899 | * Draws the bitmap marker that have a transparent of filled
|
---|
| 1900 | * background.
|
---|
| 1901 | *
|
---|
| 1902 | * Results:
|
---|
| 1903 | * None.
|
---|
| 1904 | *
|
---|
| 1905 | * Side effects:
|
---|
| 1906 | * GC stipple origins are changed to current window coordinates.
|
---|
| 1907 | * Commands are output to X to draw the marker in its current
|
---|
| 1908 | * mode.
|
---|
| 1909 | *
|
---|
| 1910 | * ----------------------------------------------------------------------
|
---|
| 1911 | */
|
---|
| 1912 | static void
|
---|
| 1913 | DrawBitmapMarker(markerPtr, drawable)
|
---|
| 1914 | Marker *markerPtr;
|
---|
| 1915 | Drawable drawable; /* Pixmap or window to draw into */
|
---|
| 1916 | {
|
---|
| 1917 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 1918 | BitmapMarker *bmPtr = (BitmapMarker *)markerPtr;
|
---|
| 1919 | double theta;
|
---|
| 1920 | Pixmap bitmap;
|
---|
| 1921 |
|
---|
| 1922 | bitmap = GETBITMAP(bmPtr);
|
---|
| 1923 | if ((bitmap == None) || (bmPtr->destWidth < 1) || (bmPtr->destHeight < 1)) {
|
---|
| 1924 | return;
|
---|
| 1925 | }
|
---|
| 1926 | theta = FMOD(bmPtr->theta, (double)90.0);
|
---|
| 1927 | if ((bmPtr->fillColor == NULL) || (theta != 0.0)) {
|
---|
| 1928 |
|
---|
| 1929 | /*
|
---|
| 1930 | * If the bitmap is rotated and a filled background is
|
---|
| 1931 | * required, then a filled polygon is drawn before the
|
---|
| 1932 | * bitmap.
|
---|
| 1933 | */
|
---|
| 1934 |
|
---|
| 1935 | if (bmPtr->fillColor != NULL) {
|
---|
| 1936 | int i;
|
---|
| 1937 | XPoint polygon[MAX_OUTLINE_POINTS];
|
---|
| 1938 |
|
---|
| 1939 | for (i = 0; i < bmPtr->nOutlinePts; i++) {
|
---|
| 1940 | polygon[i].x = (short int)bmPtr->outline[i].x;
|
---|
| 1941 | polygon[i].y = (short int)bmPtr->outline[i].y;
|
---|
| 1942 | }
|
---|
| 1943 | XFillPolygon(graphPtr->display, drawable, bmPtr->fillGC,
|
---|
| 1944 | polygon, bmPtr->nOutlinePts, Convex, CoordModeOrigin);
|
---|
| 1945 | }
|
---|
| 1946 | XSetClipMask(graphPtr->display, bmPtr->gc, bitmap);
|
---|
| 1947 | XSetClipOrigin(graphPtr->display, bmPtr->gc, (int)bmPtr->anchorPos.x,
|
---|
| 1948 | (int)bmPtr->anchorPos.y);
|
---|
| 1949 | } else {
|
---|
| 1950 | XSetClipMask(graphPtr->display, bmPtr->gc, None);
|
---|
| 1951 | XSetClipOrigin(graphPtr->display, bmPtr->gc, 0, 0);
|
---|
| 1952 | }
|
---|
| 1953 | XCopyPlane(graphPtr->display, bitmap, drawable, bmPtr->gc, 0, 0,
|
---|
| 1954 | bmPtr->destWidth, bmPtr->destHeight, (int)bmPtr->anchorPos.x,
|
---|
| 1955 | (int)bmPtr->anchorPos.y, 1);
|
---|
| 1956 | }
|
---|
| 1957 |
|
---|
| 1958 | /*
|
---|
| 1959 | * ----------------------------------------------------------------------
|
---|
| 1960 | *
|
---|
| 1961 | * BitmapMarkerToPostScript --
|
---|
| 1962 | *
|
---|
| 1963 | * Generates PostScript to print a bitmap marker.
|
---|
| 1964 | *
|
---|
| 1965 | * Results:
|
---|
| 1966 | * None.
|
---|
| 1967 | *
|
---|
| 1968 | * ----------------------------------------------------------------------
|
---|
| 1969 | */
|
---|
| 1970 | static void
|
---|
| 1971 | BitmapMarkerToPostScript(markerPtr, psToken)
|
---|
| 1972 | Marker *markerPtr; /* Marker to be printed */
|
---|
| 1973 | PsToken psToken;
|
---|
| 1974 | {
|
---|
| 1975 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 1976 | BitmapMarker *bmPtr = (BitmapMarker *)markerPtr;
|
---|
| 1977 | Pixmap bitmap;
|
---|
| 1978 |
|
---|
| 1979 | bitmap = GETBITMAP(bmPtr);
|
---|
| 1980 | if (bitmap == None) {
|
---|
| 1981 | return;
|
---|
| 1982 | }
|
---|
| 1983 | if (bmPtr->fillColor != NULL) {
|
---|
| 1984 | Blt_BackgroundToPostScript(psToken, bmPtr->fillColor);
|
---|
| 1985 | Blt_PolygonToPostScript(psToken, bmPtr->outline, 4);
|
---|
| 1986 | }
|
---|
| 1987 | Blt_ForegroundToPostScript(psToken, bmPtr->outlineColor);
|
---|
| 1988 |
|
---|
| 1989 | Blt_FormatToPostScript(psToken,
|
---|
| 1990 | " gsave\n %g %g translate\n %d %d scale\n",
|
---|
| 1991 | bmPtr->anchorPos.x, bmPtr->anchorPos.y + bmPtr->destHeight,
|
---|
| 1992 | bmPtr->destWidth, -bmPtr->destHeight);
|
---|
| 1993 | Blt_FormatToPostScript(psToken, " %d %d true [%d 0 0 %d 0 %d] {",
|
---|
| 1994 | bmPtr->destWidth, bmPtr->destHeight, bmPtr->destWidth,
|
---|
| 1995 | -bmPtr->destHeight, bmPtr->destHeight);
|
---|
| 1996 | Blt_BitmapDataToPostScript(psToken, graphPtr->display, bitmap,
|
---|
| 1997 | bmPtr->destWidth, bmPtr->destHeight);
|
---|
| 1998 | Blt_AppendToPostScript(psToken, " } imagemask\n",
|
---|
| 1999 | "grestore\n", (char *)NULL);
|
---|
| 2000 | }
|
---|
| 2001 |
|
---|
| 2002 | /*
|
---|
| 2003 | * ----------------------------------------------------------------------
|
---|
| 2004 | *
|
---|
| 2005 | * FreeBitmapMarker --
|
---|
| 2006 | *
|
---|
| 2007 | * Releases the memory and attributes of the bitmap marker.
|
---|
| 2008 | *
|
---|
| 2009 | * Results:
|
---|
| 2010 | * None.
|
---|
| 2011 | *
|
---|
| 2012 | * Side effects:
|
---|
| 2013 | * Bitmap attributes (GCs, colors, bitmap, etc) get destroyed.
|
---|
| 2014 | * Memory is released, X resources are freed, and the graph is
|
---|
| 2015 | * redrawn.
|
---|
| 2016 | *
|
---|
| 2017 | * ----------------------------------------------------------------------
|
---|
| 2018 | */
|
---|
| 2019 | static void
|
---|
| 2020 | FreeBitmapMarker(graphPtr, markerPtr)
|
---|
| 2021 | Graph *graphPtr;
|
---|
| 2022 | Marker *markerPtr;
|
---|
| 2023 | {
|
---|
| 2024 | BitmapMarker *bmPtr = (BitmapMarker *)markerPtr;
|
---|
| 2025 |
|
---|
| 2026 | if (bmPtr->gc != NULL) {
|
---|
| 2027 | Tk_FreeGC(graphPtr->display, bmPtr->gc);
|
---|
| 2028 | }
|
---|
| 2029 | if (bmPtr->fillGC != NULL) {
|
---|
| 2030 | Tk_FreeGC(graphPtr->display, bmPtr->fillGC);
|
---|
| 2031 | }
|
---|
| 2032 | if (bmPtr->destBitmap != None) {
|
---|
| 2033 | Tk_FreePixmap(graphPtr->display, bmPtr->destBitmap);
|
---|
| 2034 | }
|
---|
| 2035 | }
|
---|
| 2036 |
|
---|
| 2037 | /*
|
---|
| 2038 | * ----------------------------------------------------------------------
|
---|
| 2039 | *
|
---|
| 2040 | * CreateBitmapMarker --
|
---|
| 2041 | *
|
---|
| 2042 | * Allocate memory and initialize methods for the new bitmap marker.
|
---|
| 2043 | *
|
---|
| 2044 | * Results:
|
---|
| 2045 | * The pointer to the newly allocated marker structure is returned.
|
---|
| 2046 | *
|
---|
| 2047 | * Side effects:
|
---|
| 2048 | * Memory is allocated for the bitmap marker structure.
|
---|
| 2049 | *
|
---|
| 2050 | * ----------------------------------------------------------------------
|
---|
| 2051 | */
|
---|
| 2052 | static Marker *
|
---|
| 2053 | CreateBitmapMarker()
|
---|
| 2054 | {
|
---|
| 2055 | BitmapMarker *bmPtr;
|
---|
| 2056 |
|
---|
| 2057 | bmPtr = Blt_Calloc(1, sizeof(BitmapMarker));
|
---|
| 2058 | if (bmPtr != NULL) {
|
---|
| 2059 | bmPtr->classPtr = &bitmapMarkerClass;
|
---|
| 2060 | }
|
---|
| 2061 | return (Marker *)bmPtr;
|
---|
| 2062 | }
|
---|
| 2063 |
|
---|
| 2064 | /*
|
---|
| 2065 | *----------------------------------------------------------------------
|
---|
| 2066 | *
|
---|
| 2067 | * ImageChangedProc
|
---|
| 2068 | *
|
---|
| 2069 | *
|
---|
| 2070 | * Results:
|
---|
| 2071 | * None.
|
---|
| 2072 | *
|
---|
| 2073 | *----------------------------------------------------------------------
|
---|
| 2074 | */
|
---|
| 2075 | /* ARGSUSED */
|
---|
| 2076 | static void
|
---|
| 2077 | ImageChangedProc(clientData, x, y, width, height, imageWidth, imageHeight)
|
---|
| 2078 | ClientData clientData;
|
---|
| 2079 | int x, y, width, height; /* Not used. */
|
---|
| 2080 | int imageWidth, imageHeight; /* Not used. */
|
---|
| 2081 | {
|
---|
| 2082 | ImageMarker *imPtr = clientData;
|
---|
| 2083 | Tk_PhotoHandle photo;
|
---|
| 2084 |
|
---|
| 2085 | photo = Blt_FindPhoto(imPtr->graphPtr->interp, imPtr->imageName);
|
---|
| 2086 | if (photo != NULL) {
|
---|
| 2087 | if (imPtr->srcImage != NULL) {
|
---|
| 2088 | Blt_FreeColorImage(imPtr->srcImage);
|
---|
| 2089 | }
|
---|
| 2090 | /* Convert the latest incarnation of the photo image back to a
|
---|
| 2091 | * color image that we can scale. */
|
---|
| 2092 | imPtr->srcImage = Blt_PhotoToColorImage(photo);
|
---|
| 2093 | }
|
---|
| 2094 | imPtr->graphPtr->flags |= REDRAW_BACKING_STORE;
|
---|
| 2095 | imPtr->flags |= MAP_ITEM;
|
---|
| 2096 | Blt_EventuallyRedrawGraph(imPtr->graphPtr);
|
---|
| 2097 | }
|
---|
| 2098 |
|
---|
| 2099 | /*
|
---|
| 2100 | * ----------------------------------------------------------------------
|
---|
| 2101 | *
|
---|
| 2102 | * ConfigureImageMarker --
|
---|
| 2103 | *
|
---|
| 2104 | * This procedure is called to process an argv/argc list, plus
|
---|
| 2105 | * the Tk option database, in order to configure (or reconfigure)
|
---|
| 2106 | * a image marker.
|
---|
| 2107 | *
|
---|
| 2108 | * Results:
|
---|
| 2109 | * A standard Tcl result. If TCL_ERROR is returned, then
|
---|
| 2110 | * interp->result contains an error message.
|
---|
| 2111 | *
|
---|
| 2112 | * Side effects:
|
---|
| 2113 | * Configuration information, such as image pixmap, colors,
|
---|
| 2114 | * rotation, etc. get set for markerPtr; old resources get freed,
|
---|
| 2115 | * if there were any. The marker is eventually redisplayed.
|
---|
| 2116 | *
|
---|
| 2117 | * ----------------------------------------------------------------------
|
---|
| 2118 | */
|
---|
| 2119 | static int
|
---|
| 2120 | ConfigureImageMarker(markerPtr)
|
---|
| 2121 | Marker *markerPtr;
|
---|
| 2122 | {
|
---|
| 2123 | ImageMarker *imPtr = (ImageMarker *)markerPtr;
|
---|
| 2124 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 2125 |
|
---|
| 2126 | if (Blt_ConfigModified(markerPtr->classPtr->configSpecs, "-image",
|
---|
| 2127 | (char *)NULL)) {
|
---|
| 2128 | Tcl_Interp *interp = graphPtr->interp;
|
---|
| 2129 |
|
---|
| 2130 | if (imPtr->tkImage != NULL) {
|
---|
| 2131 | Tk_FreeImage(imPtr->tkImage);
|
---|
| 2132 | imPtr->tkImage = NULL;
|
---|
| 2133 | }
|
---|
| 2134 | if (imPtr->imageName[0] != '\0') {
|
---|
| 2135 | GC newGC;
|
---|
| 2136 | Tk_PhotoHandle photo;
|
---|
| 2137 |
|
---|
| 2138 | imPtr->tkImage = Tk_GetImage(interp, graphPtr->tkwin,
|
---|
| 2139 | imPtr->imageName, ImageChangedProc, imPtr);
|
---|
| 2140 | if (imPtr->tkImage == NULL) {
|
---|
| 2141 | Blt_Free(imPtr->imageName);
|
---|
| 2142 | imPtr->imageName = NULL;
|
---|
| 2143 | return TCL_ERROR;
|
---|
| 2144 | }
|
---|
| 2145 | photo = Blt_FindPhoto(interp, imPtr->imageName);
|
---|
| 2146 | if (photo != NULL) {
|
---|
| 2147 | if (imPtr->srcImage != NULL) {
|
---|
| 2148 | Blt_FreeColorImage(imPtr->srcImage);
|
---|
| 2149 | }
|
---|
| 2150 | /* Convert the photo into a color image */
|
---|
| 2151 | imPtr->srcImage = Blt_PhotoToColorImage(photo);
|
---|
| 2152 | }
|
---|
| 2153 | newGC = Tk_GetGC(graphPtr->tkwin, 0L, (XGCValues *)NULL);
|
---|
| 2154 | if (imPtr->gc != NULL) {
|
---|
| 2155 | Tk_FreeGC(graphPtr->display, imPtr->gc);
|
---|
| 2156 | }
|
---|
| 2157 | imPtr->gc = newGC;
|
---|
| 2158 | }
|
---|
| 2159 | }
|
---|
| 2160 | imPtr->flags |= MAP_ITEM;
|
---|
| 2161 | if (imPtr->drawUnder) {
|
---|
| 2162 | graphPtr->flags |= REDRAW_BACKING_STORE;
|
---|
| 2163 | }
|
---|
| 2164 | Blt_EventuallyRedrawGraph(graphPtr);
|
---|
| 2165 | return TCL_OK;
|
---|
| 2166 | }
|
---|
| 2167 |
|
---|
| 2168 | /*
|
---|
| 2169 | * ----------------------------------------------------------------------
|
---|
| 2170 | *
|
---|
| 2171 | * MapImageMarker --
|
---|
| 2172 | *
|
---|
| 2173 | * This procedure gets called each time the layout of the graph
|
---|
| 2174 | * changes. The x, y window coordinates of the image marker are
|
---|
| 2175 | * saved in the marker structure.
|
---|
| 2176 | *
|
---|
| 2177 | * Additionly, if no background color was specified, the
|
---|
| 2178 | * GCTileStipXOrigin and GCTileStipYOrigin attributes are set in
|
---|
| 2179 | * the private GC.
|
---|
| 2180 | *
|
---|
| 2181 | * Results:
|
---|
| 2182 | * None.
|
---|
| 2183 | *
|
---|
| 2184 | * Side effects:
|
---|
| 2185 | * Window coordinates are saved and if no background color was *
|
---|
| 2186 | * set, the GC stipple origins are changed to calculated window
|
---|
| 2187 | * coordinates.
|
---|
| 2188 | *
|
---|
| 2189 | * ----------------------------------------------------------------------
|
---|
| 2190 | */
|
---|
| 2191 | static void
|
---|
| 2192 | MapImageMarker(markerPtr)
|
---|
| 2193 | Marker *markerPtr;
|
---|
| 2194 | {
|
---|
| 2195 | Extents2D exts;
|
---|
| 2196 | Graph *graphPtr;
|
---|
| 2197 | ImageMarker *imPtr;
|
---|
| 2198 | Point2D anchorPos;
|
---|
| 2199 | Point2D corner1, corner2;
|
---|
| 2200 | int scaledWidth, scaledHeight;
|
---|
| 2201 | int srcWidth, srcHeight;
|
---|
| 2202 |
|
---|
| 2203 | imPtr = (ImageMarker *)markerPtr;
|
---|
| 2204 | if (imPtr->tkImage == NULL) {
|
---|
| 2205 | return;
|
---|
| 2206 | }
|
---|
| 2207 | graphPtr = imPtr->graphPtr;
|
---|
| 2208 | corner1 = MapPoint(graphPtr, imPtr->worldPts, &imPtr->axes);
|
---|
| 2209 | if (imPtr->srcImage == NULL) {
|
---|
| 2210 | /*
|
---|
| 2211 | * Don't scale or rotate non-photo images.
|
---|
| 2212 | */
|
---|
| 2213 | Tk_SizeOfImage(imPtr->tkImage, &srcWidth, &srcHeight);
|
---|
| 2214 | imPtr->width = srcWidth;
|
---|
| 2215 | imPtr->height = srcHeight;
|
---|
| 2216 | imPtr->anchorPos.x = corner1.x + imPtr->xOffset;
|
---|
| 2217 | imPtr->anchorPos.y = corner1.y + imPtr->yOffset;
|
---|
| 2218 | exts.left = imPtr->anchorPos.x;
|
---|
| 2219 | exts.top = imPtr->anchorPos.y;
|
---|
| 2220 | exts.right = exts.left + srcWidth - 1;
|
---|
| 2221 | exts.bottom = exts.top + srcHeight - 1;
|
---|
| 2222 | imPtr->clipped = BoxesDontOverlap(graphPtr, &exts);
|
---|
| 2223 | return;
|
---|
| 2224 | }
|
---|
| 2225 |
|
---|
| 2226 | imPtr->width = srcWidth = Blt_ColorImageWidth(imPtr->srcImage);
|
---|
| 2227 | imPtr->height = srcHeight = Blt_ColorImageHeight(imPtr->srcImage);
|
---|
| 2228 | if ((srcWidth == 0) && (srcHeight == 0)) {
|
---|
| 2229 | imPtr->clipped = TRUE;
|
---|
| 2230 | return; /* Empty image. */
|
---|
| 2231 | }
|
---|
| 2232 | if (imPtr->nWorldPts > 1) {
|
---|
| 2233 | double hold;
|
---|
| 2234 |
|
---|
| 2235 | corner2 = MapPoint(graphPtr, imPtr->worldPts + 1, &imPtr->axes);
|
---|
| 2236 | /* Flip the corners if necessary */
|
---|
| 2237 | if (corner1.x > corner2.x) {
|
---|
| 2238 | hold = corner1.x, corner1.x = corner2.x, corner2.x = hold;
|
---|
| 2239 | }
|
---|
| 2240 | if (corner1.y > corner2.y) {
|
---|
| 2241 | hold = corner1.y, corner1.y = corner2.y, corner2.y = hold;
|
---|
| 2242 | }
|
---|
| 2243 | } else {
|
---|
| 2244 | corner2.x = corner1.x + srcWidth - 1;
|
---|
| 2245 | corner2.y = corner1.y + srcHeight - 1;
|
---|
| 2246 | }
|
---|
| 2247 | scaledWidth = (int)(corner2.x - corner1.x) + 1;
|
---|
| 2248 | scaledHeight = (int)(corner2.y - corner1.y) + 1;
|
---|
| 2249 |
|
---|
| 2250 | if (imPtr->nWorldPts == 1) {
|
---|
| 2251 | anchorPos = Blt_TranslatePoint(&corner1, scaledWidth, scaledHeight,
|
---|
| 2252 | imPtr->anchor);
|
---|
| 2253 | } else {
|
---|
| 2254 | anchorPos = corner1;
|
---|
| 2255 | }
|
---|
| 2256 | anchorPos.x += imPtr->xOffset;
|
---|
| 2257 | anchorPos.y += imPtr->yOffset;
|
---|
| 2258 |
|
---|
| 2259 | /* Check if the image sits at least partially in the plot area. */
|
---|
| 2260 | exts.left = anchorPos.x;
|
---|
| 2261 | exts.top = anchorPos.y;
|
---|
| 2262 | exts.right = anchorPos.x + scaledWidth - 1;
|
---|
| 2263 | exts.bottom = anchorPos.y + scaledHeight - 1;
|
---|
| 2264 |
|
---|
| 2265 | imPtr->clipped = BoxesDontOverlap(graphPtr, &exts);
|
---|
| 2266 | if (imPtr->clipped) {
|
---|
| 2267 | return; /* Image is offscreen. Don't generate
|
---|
| 2268 | * rotated or scaled images. */
|
---|
| 2269 | }
|
---|
| 2270 | if ((scaledWidth != srcWidth) || (scaledHeight != srcHeight)) {
|
---|
| 2271 | Tk_PhotoHandle photo;
|
---|
| 2272 | Blt_ColorImage destImage;
|
---|
| 2273 | int x, y, width, height;
|
---|
| 2274 | int left, right, top, bottom;
|
---|
| 2275 |
|
---|
| 2276 | /* Determine the region of the subimage inside of the
|
---|
| 2277 | * destination image. */
|
---|
| 2278 | left = MAX((int)exts.left, graphPtr->left);
|
---|
| 2279 | top = MAX((int)exts.top, graphPtr->top);
|
---|
| 2280 | right = MIN((int)exts.right, graphPtr->right);
|
---|
| 2281 | bottom = MIN((int)exts.bottom, graphPtr->bottom);
|
---|
| 2282 |
|
---|
| 2283 | /* Reset image location and coordinates to that of the region */
|
---|
| 2284 | anchorPos.x = left;
|
---|
| 2285 | anchorPos.y = top;
|
---|
| 2286 |
|
---|
| 2287 | x = y = 0;
|
---|
| 2288 | if (graphPtr->left > (int)exts.left) {
|
---|
| 2289 | x = graphPtr->left - (int)exts.left;
|
---|
| 2290 | }
|
---|
| 2291 | if (graphPtr->top > (int)exts.top) {
|
---|
| 2292 | y = graphPtr->top - (int)exts.top;
|
---|
| 2293 | }
|
---|
| 2294 | width = (int)(right - left + 1);
|
---|
| 2295 | height = (int)(bottom - top + 1);
|
---|
| 2296 |
|
---|
| 2297 | destImage = Blt_ResizeColorSubimage(imPtr->srcImage, x, y, width,
|
---|
| 2298 | height, scaledWidth, scaledHeight);
|
---|
| 2299 | #ifdef notyet
|
---|
| 2300 | /* Now convert the color image into a pixmap */
|
---|
| 2301 | if (imPtr->pixmap != None) {
|
---|
| 2302 | Blt_FreeColorTable(imPtr->colorTable);
|
---|
| 2303 | Tk_FreePixmap(Tk_Display(graphPtr->tkwin), imPtr->pixmap);
|
---|
| 2304 | imPtr->colorTable = NULL;
|
---|
| 2305 | }
|
---|
| 2306 | imPtr->pixmap = Blt_ColorImageToPixmap(graphPtr->interp,
|
---|
| 2307 | graphPtr->tkwin, destImage, &imPtr->colorTable);
|
---|
| 2308 | #else
|
---|
| 2309 | imPtr->pixmap = None;
|
---|
| 2310 | if (imPtr->tmpImage == NULL) {
|
---|
| 2311 | imPtr->tmpImage = Blt_CreateTemporaryImage(graphPtr->interp,
|
---|
| 2312 | graphPtr->tkwin, imPtr);
|
---|
| 2313 | if (imPtr->tmpImage == NULL) {
|
---|
| 2314 | return;
|
---|
| 2315 | }
|
---|
| 2316 | }
|
---|
| 2317 | /* Put the scaled colorimage into the photo. */
|
---|
| 2318 | photo = Blt_FindPhoto(graphPtr->interp,
|
---|
| 2319 | Blt_NameOfImage(imPtr->tmpImage));
|
---|
| 2320 | Blt_ColorImageToPhoto(destImage, photo);
|
---|
| 2321 | #endif
|
---|
| 2322 | Blt_FreeColorImage(destImage);
|
---|
| 2323 | imPtr->width = width;
|
---|
| 2324 | imPtr->height = height;
|
---|
| 2325 | }
|
---|
| 2326 | imPtr->anchorPos = anchorPos;
|
---|
| 2327 | }
|
---|
| 2328 |
|
---|
| 2329 | /*
|
---|
| 2330 | * ----------------------------------------------------------------------
|
---|
| 2331 | *
|
---|
| 2332 | * PointInWindowMarker --
|
---|
| 2333 | *
|
---|
| 2334 | * Indicates if the given point is over the window marker. The
|
---|
| 2335 | * area of the window is the rectangle.
|
---|
| 2336 | *
|
---|
| 2337 | * Results:
|
---|
| 2338 | * Returns 1 is the point is over the window marker, 0 otherwise.
|
---|
| 2339 | *
|
---|
| 2340 | * ----------------------------------------------------------------------
|
---|
| 2341 | */
|
---|
| 2342 | static int
|
---|
| 2343 | PointInImageMarker(markerPtr, samplePtr)
|
---|
| 2344 | Marker *markerPtr;
|
---|
| 2345 | Point2D *samplePtr;
|
---|
| 2346 | {
|
---|
| 2347 | ImageMarker *imPtr = (ImageMarker *)markerPtr;
|
---|
| 2348 |
|
---|
| 2349 | return ((samplePtr->x >= imPtr->anchorPos.x) &&
|
---|
| 2350 | (samplePtr->x < (imPtr->anchorPos.x + imPtr->width)) &&
|
---|
| 2351 | (samplePtr->y >= imPtr->anchorPos.y) &&
|
---|
| 2352 | (samplePtr->y < (imPtr->anchorPos.y + imPtr->height)));
|
---|
| 2353 | }
|
---|
| 2354 |
|
---|
| 2355 | /*
|
---|
| 2356 | * ----------------------------------------------------------------------
|
---|
| 2357 | *
|
---|
| 2358 | * RegionInImageMarker --
|
---|
| 2359 | *
|
---|
| 2360 | * ----------------------------------------------------------------------
|
---|
| 2361 | */
|
---|
| 2362 | static int
|
---|
| 2363 | RegionInImageMarker(markerPtr, extsPtr, enclosed)
|
---|
| 2364 | Marker *markerPtr;
|
---|
| 2365 | Extents2D *extsPtr;
|
---|
| 2366 | int enclosed;
|
---|
| 2367 | {
|
---|
| 2368 | ImageMarker *imPtr = (ImageMarker *)markerPtr;
|
---|
| 2369 |
|
---|
| 2370 | if (imPtr->nWorldPts < 1) {
|
---|
| 2371 | return FALSE;
|
---|
| 2372 | }
|
---|
| 2373 | if (enclosed) {
|
---|
| 2374 | return ((imPtr->anchorPos.x >= extsPtr->left) &&
|
---|
| 2375 | (imPtr->anchorPos.y >= extsPtr->top) &&
|
---|
| 2376 | ((imPtr->anchorPos.x + imPtr->width) <= extsPtr->right) &&
|
---|
| 2377 | ((imPtr->anchorPos.y + imPtr->height) <= extsPtr->bottom));
|
---|
| 2378 | }
|
---|
| 2379 | return !((imPtr->anchorPos.x >= extsPtr->right) ||
|
---|
| 2380 | (imPtr->anchorPos.y >= extsPtr->bottom) ||
|
---|
| 2381 | ((imPtr->anchorPos.x + imPtr->width) <= extsPtr->left) ||
|
---|
| 2382 | ((imPtr->anchorPos.y + imPtr->height) <= extsPtr->top));
|
---|
| 2383 | }
|
---|
| 2384 |
|
---|
| 2385 | /*
|
---|
| 2386 | * ----------------------------------------------------------------------
|
---|
| 2387 | *
|
---|
| 2388 | * DrawImageMarker --
|
---|
| 2389 | *
|
---|
| 2390 | * This procedure is invoked to draw a image marker.
|
---|
| 2391 | *
|
---|
| 2392 | * Results:
|
---|
| 2393 | * None.
|
---|
| 2394 | *
|
---|
| 2395 | * Side effects:
|
---|
| 2396 | * GC stipple origins are changed to current window coordinates.
|
---|
| 2397 | * Commands are output to X to draw the marker in its current mode.
|
---|
| 2398 | *
|
---|
| 2399 | * ----------------------------------------------------------------------
|
---|
| 2400 | */
|
---|
| 2401 | static void
|
---|
| 2402 | DrawImageMarker(markerPtr, drawable)
|
---|
| 2403 | Marker *markerPtr;
|
---|
| 2404 | Drawable drawable; /* Pixmap or window to draw into */
|
---|
| 2405 | {
|
---|
| 2406 | ImageMarker *imPtr = (ImageMarker *)markerPtr;
|
---|
| 2407 | int width, height;
|
---|
| 2408 |
|
---|
| 2409 | if ((imPtr->tkImage == NULL) || (Tk_ImageIsDeleted(imPtr->tkImage))) {
|
---|
| 2410 | return;
|
---|
| 2411 | }
|
---|
| 2412 | if (imPtr->pixmap == None) {
|
---|
| 2413 | Pixmap pixmap;
|
---|
| 2414 | Tk_Image tkImage;
|
---|
| 2415 |
|
---|
| 2416 | tkImage = (imPtr->tmpImage != NULL) ? imPtr->tmpImage : imPtr->tkImage;
|
---|
| 2417 | Tk_SizeOfImage(tkImage, &width, &height);
|
---|
| 2418 | /* pixmap = Tk_ImageGetPhotoPixmap(tkImage); */
|
---|
| 2419 | pixmap = None;
|
---|
| 2420 | if (pixmap == None) { /* May not be a "photo" image. */
|
---|
| 2421 | Tk_RedrawImage(tkImage, 0, 0, width, height, drawable,
|
---|
| 2422 | (int)imPtr->anchorPos.x, (int)imPtr->anchorPos.y);
|
---|
| 2423 | } else {
|
---|
| 2424 | XCopyArea(imPtr->graphPtr->display, pixmap, drawable,
|
---|
| 2425 | imPtr->gc, 0, 0, width, height, (int)imPtr->anchorPos.x,
|
---|
| 2426 | (int)imPtr->anchorPos.y);
|
---|
| 2427 | }
|
---|
| 2428 | } else {
|
---|
| 2429 | XCopyArea(imPtr->graphPtr->display, imPtr->pixmap, drawable,
|
---|
| 2430 | imPtr->gc, 0, 0, imPtr->width, imPtr->height,
|
---|
| 2431 | (int)imPtr->anchorPos.x, (int)imPtr->anchorPos.y);
|
---|
| 2432 | }
|
---|
| 2433 | }
|
---|
| 2434 |
|
---|
| 2435 | /*
|
---|
| 2436 | * ----------------------------------------------------------------------
|
---|
| 2437 | *
|
---|
| 2438 | * ImageMarkerToPostScript --
|
---|
| 2439 | *
|
---|
| 2440 | * This procedure is invoked to print a image marker.
|
---|
| 2441 | *
|
---|
| 2442 | * Results:
|
---|
| 2443 | * None.
|
---|
| 2444 | *
|
---|
| 2445 | * ----------------------------------------------------------------------
|
---|
| 2446 | */
|
---|
| 2447 | static void
|
---|
| 2448 | ImageMarkerToPostScript(markerPtr, psToken)
|
---|
| 2449 | Marker *markerPtr; /* Marker to be printed */
|
---|
| 2450 | PsToken psToken;
|
---|
| 2451 | {
|
---|
| 2452 | ImageMarker *imPtr = (ImageMarker *)markerPtr;
|
---|
| 2453 | char *imageName;
|
---|
| 2454 | Tk_PhotoHandle photo;
|
---|
| 2455 |
|
---|
| 2456 | if ((imPtr->tkImage == NULL) || (Tk_ImageIsDeleted(imPtr->tkImage))) {
|
---|
| 2457 | return; /* Image doesn't exist anymore */
|
---|
| 2458 | }
|
---|
| 2459 | imageName = (imPtr->tmpImage == NULL)
|
---|
| 2460 | ? Blt_NameOfImage(imPtr->tkImage) : Blt_NameOfImage(imPtr->tmpImage);
|
---|
| 2461 | photo = Blt_FindPhoto(markerPtr->graphPtr->interp, imageName);
|
---|
| 2462 | if (photo == NULL) {
|
---|
| 2463 | return; /* Image isn't a photo image */
|
---|
| 2464 | }
|
---|
| 2465 | Blt_PhotoToPostScript(psToken, photo, imPtr->anchorPos.x,
|
---|
| 2466 | imPtr->anchorPos.y);
|
---|
| 2467 | }
|
---|
| 2468 |
|
---|
| 2469 | /*
|
---|
| 2470 | * ----------------------------------------------------------------------
|
---|
| 2471 | *
|
---|
| 2472 | * FreeImageMarker --
|
---|
| 2473 | *
|
---|
| 2474 | * Destroys the structure containing the attributes of the image
|
---|
| 2475 | * marker.
|
---|
| 2476 | *
|
---|
| 2477 | * Results:
|
---|
| 2478 | * None.
|
---|
| 2479 | *
|
---|
| 2480 | * Side effects:
|
---|
| 2481 | * Image attributes (GCs, colors, image, etc) get destroyed.
|
---|
| 2482 | * Memory is released, X resources are freed, and the graph is
|
---|
| 2483 | * redrawn.
|
---|
| 2484 | *
|
---|
| 2485 | * ----------------------------------------------------------------------
|
---|
| 2486 | */
|
---|
| 2487 | static void
|
---|
| 2488 | FreeImageMarker(graphPtr, markerPtr)
|
---|
| 2489 | Graph *graphPtr;
|
---|
| 2490 | Marker *markerPtr;
|
---|
| 2491 | {
|
---|
| 2492 | ImageMarker *imPtr = (ImageMarker *)markerPtr;
|
---|
| 2493 |
|
---|
| 2494 | if (imPtr->pixmap != None) {
|
---|
| 2495 | Tk_FreePixmap(graphPtr->display, imPtr->pixmap);
|
---|
| 2496 | }
|
---|
| 2497 | if (imPtr->tkImage != NULL) {
|
---|
| 2498 | Tk_FreeImage(imPtr->tkImage);
|
---|
| 2499 | }
|
---|
| 2500 | if (imPtr->tmpImage != NULL) {
|
---|
| 2501 | Blt_DestroyTemporaryImage(graphPtr->interp, imPtr->tmpImage);
|
---|
| 2502 | }
|
---|
| 2503 | if (imPtr->srcImage != NULL) {
|
---|
| 2504 | Blt_FreeColorImage(imPtr->srcImage);
|
---|
| 2505 | }
|
---|
| 2506 | if (imPtr->gc != NULL) {
|
---|
| 2507 | Tk_FreeGC(graphPtr->display, imPtr->gc);
|
---|
| 2508 | }
|
---|
| 2509 | }
|
---|
| 2510 |
|
---|
| 2511 | /*
|
---|
| 2512 | * ----------------------------------------------------------------------
|
---|
| 2513 | *
|
---|
| 2514 | * CreateImageMarker --
|
---|
| 2515 | *
|
---|
| 2516 | * Allocate memory and initialize methods for the new image marker.
|
---|
| 2517 | *
|
---|
| 2518 | * Results:
|
---|
| 2519 | * The pointer to the newly allocated marker structure is returned.
|
---|
| 2520 | *
|
---|
| 2521 | * Side effects:
|
---|
| 2522 | * Memory is allocated for the image marker structure.
|
---|
| 2523 | *
|
---|
| 2524 | * ----------------------------------------------------------------------
|
---|
| 2525 | */
|
---|
| 2526 | static Marker *
|
---|
| 2527 | CreateImageMarker()
|
---|
| 2528 | {
|
---|
| 2529 | ImageMarker *imPtr;
|
---|
| 2530 |
|
---|
| 2531 | imPtr = Blt_Calloc(1, sizeof(ImageMarker));
|
---|
| 2532 | if (imPtr != NULL) {
|
---|
| 2533 | imPtr->classPtr = &imageMarkerClass;
|
---|
| 2534 | }
|
---|
| 2535 | return (Marker *)imPtr;
|
---|
| 2536 | }
|
---|
| 2537 |
|
---|
| 2538 | /*
|
---|
| 2539 | * ----------------------------------------------------------------------
|
---|
| 2540 | *
|
---|
| 2541 | * ConfigureTextMarker --
|
---|
| 2542 | *
|
---|
| 2543 | * This procedure is called to process an argv/argc list, plus
|
---|
| 2544 | * the Tk option database, in order to configure (or
|
---|
| 2545 | * reconfigure) a text marker.
|
---|
| 2546 | *
|
---|
| 2547 | * Results:
|
---|
| 2548 | * A standard Tcl result. If TCL_ERROR is returned, then
|
---|
| 2549 | * interp->result contains an error message.
|
---|
| 2550 | *
|
---|
| 2551 | * Side effects:
|
---|
| 2552 | * Configuration information, such as text string, colors, font,
|
---|
| 2553 | * etc. get set for markerPtr; old resources get freed, if there
|
---|
| 2554 | * were any. The marker is eventually redisplayed.
|
---|
| 2555 | *
|
---|
| 2556 | * ----------------------------------------------------------------------
|
---|
| 2557 | */
|
---|
| 2558 | static int
|
---|
| 2559 | ConfigureTextMarker(markerPtr)
|
---|
| 2560 | Marker *markerPtr;
|
---|
| 2561 | {
|
---|
| 2562 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 2563 | TextMarker *tmPtr = (TextMarker *)markerPtr;
|
---|
| 2564 | GC newGC;
|
---|
| 2565 | XGCValues gcValues;
|
---|
| 2566 | unsigned long gcMask;
|
---|
| 2567 |
|
---|
| 2568 | tmPtr->style.theta = FMOD(tmPtr->style.theta, 360.0);
|
---|
| 2569 | if (tmPtr->style.theta < 0.0) {
|
---|
| 2570 | tmPtr->style.theta += 360.0;
|
---|
| 2571 | }
|
---|
| 2572 | newGC = NULL;
|
---|
| 2573 | if (tmPtr->fillColor != NULL) {
|
---|
| 2574 | gcMask = GCForeground;
|
---|
| 2575 | gcValues.foreground = tmPtr->fillColor->pixel;
|
---|
| 2576 | newGC = Tk_GetGC(graphPtr->tkwin, gcMask, &gcValues);
|
---|
| 2577 | }
|
---|
| 2578 | if (tmPtr->fillGC != NULL) {
|
---|
| 2579 | Tk_FreeGC(graphPtr->display, tmPtr->fillGC);
|
---|
| 2580 | }
|
---|
| 2581 | tmPtr->fillGC = newGC;
|
---|
| 2582 | Blt_ResetTextStyle(graphPtr->tkwin, &tmPtr->style);
|
---|
| 2583 |
|
---|
| 2584 | if (Blt_ConfigModified(tmPtr->classPtr->configSpecs, "-text",
|
---|
| 2585 | (char *)NULL)) {
|
---|
| 2586 | if (tmPtr->textPtr != NULL) {
|
---|
| 2587 | Blt_Free(tmPtr->textPtr);
|
---|
| 2588 | tmPtr->textPtr = NULL;
|
---|
| 2589 | }
|
---|
| 2590 | tmPtr->width = tmPtr->height = 0;
|
---|
| 2591 | if (tmPtr->string != NULL) {
|
---|
| 2592 | register int i;
|
---|
| 2593 | double rotWidth, rotHeight;
|
---|
| 2594 |
|
---|
| 2595 | tmPtr->textPtr = Blt_GetTextLayout(tmPtr->string, &tmPtr->style);
|
---|
| 2596 | Blt_GetBoundingBox(tmPtr->textPtr->width, tmPtr->textPtr->height,
|
---|
| 2597 | tmPtr->style.theta, &rotWidth, &rotHeight, tmPtr->outline);
|
---|
| 2598 | tmPtr->width = ROUND(rotWidth);
|
---|
| 2599 | tmPtr->height = ROUND(rotHeight);
|
---|
| 2600 | for (i = 0; i < 4; i++) {
|
---|
| 2601 | tmPtr->outline[i].x += ROUND(rotWidth * 0.5);
|
---|
| 2602 | tmPtr->outline[i].y += ROUND(rotHeight * 0.5);
|
---|
| 2603 | }
|
---|
| 2604 | tmPtr->outline[4].x = tmPtr->outline[0].x;
|
---|
| 2605 | tmPtr->outline[4].y = tmPtr->outline[0].y;
|
---|
| 2606 | }
|
---|
| 2607 | }
|
---|
| 2608 | tmPtr->flags |= MAP_ITEM;
|
---|
| 2609 | if (tmPtr->drawUnder) {
|
---|
| 2610 | graphPtr->flags |= REDRAW_BACKING_STORE;
|
---|
| 2611 | }
|
---|
| 2612 | Blt_EventuallyRedrawGraph(graphPtr);
|
---|
| 2613 | return TCL_OK;
|
---|
| 2614 | }
|
---|
| 2615 |
|
---|
| 2616 | /*
|
---|
| 2617 | * ----------------------------------------------------------------------
|
---|
| 2618 | *
|
---|
| 2619 | * MapTextMarker --
|
---|
| 2620 | *
|
---|
| 2621 | * Calculate the layout position for a text marker. Positional
|
---|
| 2622 | * information is saved in the marker. If the text is rotated,
|
---|
| 2623 | * a bitmap containing the text is created.
|
---|
| 2624 | *
|
---|
| 2625 | * Results:
|
---|
| 2626 | * None.
|
---|
| 2627 | *
|
---|
| 2628 | * Side effects:
|
---|
| 2629 | * If no background color has been specified, the GC stipple
|
---|
| 2630 | * origins are changed to current window coordinates. For both
|
---|
| 2631 | * rotated and non-rotated text, if any old bitmap is leftover,
|
---|
| 2632 | * it is freed.
|
---|
| 2633 | *
|
---|
| 2634 | * ----------------------------------------------------------------------
|
---|
| 2635 | */
|
---|
| 2636 | static void
|
---|
| 2637 | MapTextMarker(markerPtr)
|
---|
| 2638 | Marker *markerPtr;
|
---|
| 2639 | {
|
---|
| 2640 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 2641 | TextMarker *tmPtr = (TextMarker *)markerPtr;
|
---|
| 2642 | Extents2D exts;
|
---|
| 2643 | Point2D anchorPos;
|
---|
| 2644 |
|
---|
| 2645 | if (tmPtr->string == NULL) {
|
---|
| 2646 | return;
|
---|
| 2647 | }
|
---|
| 2648 | anchorPos = MapPoint(graphPtr, tmPtr->worldPts, &tmPtr->axes);
|
---|
| 2649 | anchorPos = Blt_TranslatePoint(&anchorPos, tmPtr->width, tmPtr->height,
|
---|
| 2650 | tmPtr->anchor);
|
---|
| 2651 | anchorPos.x += tmPtr->xOffset;
|
---|
| 2652 | anchorPos.y += tmPtr->yOffset;
|
---|
| 2653 | /*
|
---|
| 2654 | * Determine the bounding box of the text and test to see if it
|
---|
| 2655 | * is at least partially contained within the plotting area.
|
---|
| 2656 | */
|
---|
| 2657 | exts.left = anchorPos.x;
|
---|
| 2658 | exts.top = anchorPos.y;
|
---|
| 2659 | exts.right = anchorPos.x + tmPtr->width - 1;
|
---|
| 2660 | exts.bottom = anchorPos.y + tmPtr->height - 1;
|
---|
| 2661 | tmPtr->clipped = BoxesDontOverlap(graphPtr, &exts);
|
---|
| 2662 | tmPtr->anchorPos = anchorPos;
|
---|
| 2663 |
|
---|
| 2664 | }
|
---|
| 2665 |
|
---|
| 2666 | static int
|
---|
| 2667 | PointInTextMarker(markerPtr, samplePtr)
|
---|
| 2668 | Marker *markerPtr;
|
---|
| 2669 | Point2D *samplePtr;
|
---|
| 2670 | {
|
---|
| 2671 | TextMarker *tmPtr = (TextMarker *)markerPtr;
|
---|
| 2672 |
|
---|
| 2673 | if (tmPtr->string == NULL) {
|
---|
| 2674 | return 0;
|
---|
| 2675 | }
|
---|
| 2676 | if (tmPtr->style.theta != 0.0) {
|
---|
| 2677 | Point2D points[5];
|
---|
| 2678 | register int i;
|
---|
| 2679 |
|
---|
| 2680 | /*
|
---|
| 2681 | * Figure out the bounding polygon (isolateral) for the text
|
---|
| 2682 | * and see if the point is inside of it.
|
---|
| 2683 | */
|
---|
| 2684 |
|
---|
| 2685 | for (i = 0; i < 5; i++) {
|
---|
| 2686 | points[i].x = tmPtr->outline[i].x + tmPtr->anchorPos.x;
|
---|
| 2687 | points[i].y = tmPtr->outline[i].y + tmPtr->anchorPos.y;
|
---|
| 2688 | }
|
---|
| 2689 | return Blt_PointInPolygon(samplePtr, points, 5);
|
---|
| 2690 | }
|
---|
| 2691 | return ((samplePtr->x >= tmPtr->anchorPos.x) &&
|
---|
| 2692 | (samplePtr->x < (tmPtr->anchorPos.x + tmPtr->width)) &&
|
---|
| 2693 | (samplePtr->y >= tmPtr->anchorPos.y) &&
|
---|
| 2694 | (samplePtr->y < (tmPtr->anchorPos.y + tmPtr->height)));
|
---|
| 2695 | }
|
---|
| 2696 |
|
---|
| 2697 | /*
|
---|
| 2698 | * ----------------------------------------------------------------------
|
---|
| 2699 | *
|
---|
| 2700 | * RegionInTextMarker --
|
---|
| 2701 | *
|
---|
| 2702 | * ----------------------------------------------------------------------
|
---|
| 2703 | */
|
---|
| 2704 | static int
|
---|
| 2705 | RegionInTextMarker(markerPtr, extsPtr, enclosed)
|
---|
| 2706 | Marker *markerPtr;
|
---|
| 2707 | Extents2D *extsPtr;
|
---|
| 2708 | int enclosed;
|
---|
| 2709 | {
|
---|
| 2710 | TextMarker *tmPtr = (TextMarker *)markerPtr;
|
---|
| 2711 |
|
---|
| 2712 | if (tmPtr->nWorldPts < 1) {
|
---|
| 2713 | return FALSE;
|
---|
| 2714 | }
|
---|
| 2715 | if (tmPtr->style.theta != 0.0) {
|
---|
| 2716 | Point2D points[5];
|
---|
| 2717 | register int i;
|
---|
| 2718 |
|
---|
| 2719 | /*
|
---|
| 2720 | * Generate the bounding polygon (isolateral) for the bitmap
|
---|
| 2721 | * and see if the point is inside of it.
|
---|
| 2722 | */
|
---|
| 2723 | for (i = 0; i < 4; i++) {
|
---|
| 2724 | points[i].x = tmPtr->outline[i].x + tmPtr->anchorPos.x;
|
---|
| 2725 | points[i].y = tmPtr->outline[i].y + tmPtr->anchorPos.y;
|
---|
| 2726 | }
|
---|
| 2727 | return Blt_RegionInPolygon(extsPtr, points, 4, enclosed);
|
---|
| 2728 | }
|
---|
| 2729 | if (enclosed) {
|
---|
| 2730 | return ((tmPtr->anchorPos.x >= extsPtr->left) &&
|
---|
| 2731 | (tmPtr->anchorPos.y >= extsPtr->top) &&
|
---|
| 2732 | ((tmPtr->anchorPos.x + tmPtr->width) <= extsPtr->right) &&
|
---|
| 2733 | ((tmPtr->anchorPos.y + tmPtr->height) <= extsPtr->bottom));
|
---|
| 2734 | }
|
---|
| 2735 | return !((tmPtr->anchorPos.x >= extsPtr->right) ||
|
---|
| 2736 | (tmPtr->anchorPos.y >= extsPtr->bottom) ||
|
---|
| 2737 | ((tmPtr->anchorPos.x + tmPtr->width) <= extsPtr->left) ||
|
---|
| 2738 | ((tmPtr->anchorPos.y + tmPtr->height) <= extsPtr->top));
|
---|
| 2739 | }
|
---|
| 2740 |
|
---|
| 2741 | /*
|
---|
| 2742 | * ----------------------------------------------------------------------
|
---|
| 2743 | *
|
---|
| 2744 | * DrawTextMarker --
|
---|
| 2745 | *
|
---|
| 2746 | * Draws the text marker on the graph.
|
---|
| 2747 | *
|
---|
| 2748 | * Results:
|
---|
| 2749 | * None.
|
---|
| 2750 | *
|
---|
| 2751 | * Side effects:
|
---|
| 2752 | * Commands are output to X to draw the marker in its current
|
---|
| 2753 | * mode.
|
---|
| 2754 | *
|
---|
| 2755 | * ----------------------------------------------------------------------
|
---|
| 2756 | */
|
---|
| 2757 | static void
|
---|
| 2758 | DrawTextMarker(markerPtr, drawable)
|
---|
| 2759 | Marker *markerPtr;
|
---|
| 2760 | Drawable drawable; /* Pixmap or window to draw into */
|
---|
| 2761 | {
|
---|
| 2762 | TextMarker *tmPtr = (TextMarker *)markerPtr;
|
---|
| 2763 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 2764 |
|
---|
| 2765 | if (tmPtr->string == NULL) {
|
---|
| 2766 | return;
|
---|
| 2767 | }
|
---|
| 2768 | if (tmPtr->fillGC != NULL) {
|
---|
| 2769 | XPoint pointArr[4];
|
---|
| 2770 | register int i;
|
---|
| 2771 |
|
---|
| 2772 | /*
|
---|
| 2773 | * Simulate the rotated background of the bitmap by
|
---|
| 2774 | * filling a bounding polygon with the background color.
|
---|
| 2775 | */
|
---|
| 2776 | for (i = 0; i < 4; i++) {
|
---|
| 2777 | pointArr[i].x = (short int)
|
---|
| 2778 | (tmPtr->outline[i].x + tmPtr->anchorPos.x);
|
---|
| 2779 | pointArr[i].y = (short int)
|
---|
| 2780 | (tmPtr->outline[i].y + tmPtr->anchorPos.y);
|
---|
| 2781 | }
|
---|
| 2782 | XFillPolygon(graphPtr->display, drawable, tmPtr->fillGC, pointArr, 4,
|
---|
| 2783 | Convex, CoordModeOrigin);
|
---|
| 2784 | }
|
---|
| 2785 | if (tmPtr->style.color != NULL) {
|
---|
| 2786 | Blt_DrawTextLayout(graphPtr->tkwin, drawable, tmPtr->textPtr,
|
---|
| 2787 | &tmPtr->style, (int)tmPtr->anchorPos.x, (int)tmPtr->anchorPos.y);
|
---|
| 2788 | }
|
---|
| 2789 | }
|
---|
| 2790 |
|
---|
| 2791 | /*
|
---|
| 2792 | * ----------------------------------------------------------------------
|
---|
| 2793 | *
|
---|
| 2794 | * TextMarkerToPostScript --
|
---|
| 2795 | *
|
---|
| 2796 | * Outputs PostScript commands to draw a text marker at a given
|
---|
| 2797 | * x,y coordinate, rotation, anchor, and font.
|
---|
| 2798 | *
|
---|
| 2799 | * Results:
|
---|
| 2800 | * None.
|
---|
| 2801 | *
|
---|
| 2802 | * Side effects:
|
---|
| 2803 | * PostScript font and color settings are changed.
|
---|
| 2804 | *
|
---|
| 2805 | * ----------------------------------------------------------------------
|
---|
| 2806 | */
|
---|
| 2807 | static void
|
---|
| 2808 | TextMarkerToPostScript(markerPtr, psToken)
|
---|
| 2809 | Marker *markerPtr;
|
---|
| 2810 | PsToken psToken;
|
---|
| 2811 | {
|
---|
| 2812 | TextMarker *tmPtr = (TextMarker *)markerPtr;
|
---|
| 2813 |
|
---|
| 2814 | if (tmPtr->string == NULL) {
|
---|
| 2815 | return;
|
---|
| 2816 | }
|
---|
| 2817 | if (tmPtr->fillGC != NULL) {
|
---|
| 2818 | Point2D polygon[4];
|
---|
| 2819 | register int i;
|
---|
| 2820 |
|
---|
| 2821 | /*
|
---|
| 2822 | * Simulate the rotated background of the bitmap by
|
---|
| 2823 | * filling a bounding polygon with the background color.
|
---|
| 2824 | */
|
---|
| 2825 | for (i = 0; i < 4; i++) {
|
---|
| 2826 | polygon[i].x = tmPtr->outline[i].x + tmPtr->anchorPos.x;
|
---|
| 2827 | polygon[i].y = tmPtr->outline[i].y + tmPtr->anchorPos.y;
|
---|
| 2828 | }
|
---|
| 2829 | Blt_BackgroundToPostScript(psToken, tmPtr->fillColor);
|
---|
| 2830 | Blt_PolygonToPostScript(psToken, polygon, 4);
|
---|
| 2831 | }
|
---|
| 2832 | Blt_TextToPostScript(psToken, tmPtr->string, &tmPtr->style,
|
---|
| 2833 | tmPtr->anchorPos.x, tmPtr->anchorPos.y);
|
---|
| 2834 | }
|
---|
| 2835 |
|
---|
| 2836 | /*
|
---|
| 2837 | * ----------------------------------------------------------------------
|
---|
| 2838 | *
|
---|
| 2839 | * FreeTextMarker --
|
---|
| 2840 | *
|
---|
| 2841 | * Destroys the structure containing the attributes of the text
|
---|
| 2842 | * marker.
|
---|
| 2843 | *
|
---|
| 2844 | * Results:
|
---|
| 2845 | * None.
|
---|
| 2846 | *
|
---|
| 2847 | * Side effects:
|
---|
| 2848 | * Text attributes (GCs, colors, stipple, font, etc) get destroyed.
|
---|
| 2849 | * Memory is released, X resources are freed, and the graph is
|
---|
| 2850 | * redrawn.
|
---|
| 2851 | *
|
---|
| 2852 | * ----------------------------------------------------------------------
|
---|
| 2853 | */
|
---|
| 2854 | static void
|
---|
| 2855 | FreeTextMarker(graphPtr, markerPtr)
|
---|
| 2856 | Graph *graphPtr;
|
---|
| 2857 | Marker *markerPtr;
|
---|
| 2858 | {
|
---|
| 2859 | TextMarker *tmPtr = (TextMarker *)markerPtr;
|
---|
| 2860 |
|
---|
| 2861 | Blt_FreeTextStyle(graphPtr->display, &tmPtr->style);
|
---|
| 2862 | if (tmPtr->textPtr != NULL) {
|
---|
| 2863 | Blt_Free(tmPtr->textPtr);
|
---|
| 2864 | }
|
---|
| 2865 | }
|
---|
| 2866 |
|
---|
| 2867 | /*
|
---|
| 2868 | * ----------------------------------------------------------------------
|
---|
| 2869 | *
|
---|
| 2870 | * CreateTextMarker --
|
---|
| 2871 | *
|
---|
| 2872 | * Allocate memory and initialize methods for the new text marker.
|
---|
| 2873 | *
|
---|
| 2874 | * Results:
|
---|
| 2875 | * The pointer to the newly allocated marker structure is returned.
|
---|
| 2876 | *
|
---|
| 2877 | * Side effects:
|
---|
| 2878 | * Memory is allocated for the text marker structure.
|
---|
| 2879 | *
|
---|
| 2880 | * ----------------------------------------------------------------------
|
---|
| 2881 | */
|
---|
| 2882 | static Marker *
|
---|
| 2883 | CreateTextMarker()
|
---|
| 2884 | {
|
---|
| 2885 | TextMarker *tmPtr;
|
---|
| 2886 |
|
---|
| 2887 | tmPtr = Blt_Calloc(1, sizeof(TextMarker));
|
---|
| 2888 | assert(tmPtr);
|
---|
| 2889 |
|
---|
| 2890 | tmPtr->classPtr = &textMarkerClass;
|
---|
| 2891 | Blt_InitTextStyle(&tmPtr->style);
|
---|
| 2892 | tmPtr->style.anchor = TK_ANCHOR_NW;
|
---|
| 2893 | tmPtr->style.padLeft = tmPtr->style.padRight = 4;
|
---|
| 2894 | tmPtr->style.padTop = tmPtr->style.padBottom = 4;
|
---|
| 2895 |
|
---|
| 2896 | return (Marker *)tmPtr;
|
---|
| 2897 | }
|
---|
| 2898 |
|
---|
| 2899 |
|
---|
| 2900 | static void ChildEventProc _ANSI_ARGS_((ClientData clientData,
|
---|
| 2901 | XEvent *eventPtr));
|
---|
| 2902 | static void ChildGeometryProc _ANSI_ARGS_((ClientData clientData,
|
---|
| 2903 | Tk_Window tkwin));
|
---|
| 2904 |
|
---|
| 2905 | static void ChildCustodyProc _ANSI_ARGS_((ClientData clientData,
|
---|
| 2906 | Tk_Window tkwin));
|
---|
| 2907 |
|
---|
| 2908 | static Tk_GeomMgr winMarkerMgrInfo =
|
---|
| 2909 | {
|
---|
| 2910 | "graph", /* Name of geometry manager used by winfo */
|
---|
| 2911 | ChildGeometryProc, /* Procedure to for new geometry requests */
|
---|
| 2912 | ChildCustodyProc, /* Procedure when window is taken away */
|
---|
| 2913 | };
|
---|
| 2914 |
|
---|
| 2915 | /*
|
---|
| 2916 | * ----------------------------------------------------------------------
|
---|
| 2917 | *
|
---|
| 2918 | * ConfigureWindowMarker --
|
---|
| 2919 | *
|
---|
| 2920 | * This procedure is called to process an argv/argc list, plus
|
---|
| 2921 | * the Tk option database, in order to configure (or reconfigure)
|
---|
| 2922 | * a window marker.
|
---|
| 2923 | *
|
---|
| 2924 | * Results:
|
---|
| 2925 | * A standard Tcl result. If TCL_ERROR is returned, then
|
---|
| 2926 | * interp->result contains an error message.
|
---|
| 2927 | *
|
---|
| 2928 | * Side effects:
|
---|
| 2929 | * Configuration information, such as window pathname, placement,
|
---|
| 2930 | * etc. get set for markerPtr; old resources get freed, if there
|
---|
| 2931 | * were any. The marker is eventually redisplayed.
|
---|
| 2932 | *
|
---|
| 2933 | * ----------------------------------------------------------------------
|
---|
| 2934 | */
|
---|
| 2935 | static int
|
---|
| 2936 | ConfigureWindowMarker(markerPtr)
|
---|
| 2937 | Marker *markerPtr;
|
---|
| 2938 | {
|
---|
| 2939 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 2940 | WindowMarker *wmPtr = (WindowMarker *)markerPtr;
|
---|
| 2941 | Tk_Window tkwin;
|
---|
| 2942 |
|
---|
| 2943 | if (wmPtr->pathName == NULL) {
|
---|
| 2944 | return TCL_OK;
|
---|
| 2945 | }
|
---|
| 2946 | tkwin = Tk_NameToWindow(graphPtr->interp, wmPtr->pathName,
|
---|
| 2947 | graphPtr->tkwin);
|
---|
| 2948 | if (tkwin == NULL) {
|
---|
| 2949 | return TCL_ERROR;
|
---|
| 2950 | }
|
---|
| 2951 | if (Tk_Parent(tkwin) != graphPtr->tkwin) {
|
---|
| 2952 | Tcl_AppendResult(graphPtr->interp, "\"", wmPtr->pathName,
|
---|
| 2953 | "\" is not a child of \"", Tk_PathName(graphPtr->tkwin), "\"",
|
---|
| 2954 | (char *)NULL);
|
---|
| 2955 | return TCL_ERROR;
|
---|
| 2956 | }
|
---|
| 2957 | if (tkwin != wmPtr->tkwin) {
|
---|
| 2958 | if (wmPtr->tkwin != NULL) {
|
---|
| 2959 | Tk_DeleteEventHandler(wmPtr->tkwin, StructureNotifyMask,
|
---|
| 2960 | ChildEventProc, wmPtr);
|
---|
| 2961 | Tk_ManageGeometry(wmPtr->tkwin, (Tk_GeomMgr *) 0, (ClientData)0);
|
---|
| 2962 | Tk_UnmapWindow(wmPtr->tkwin);
|
---|
| 2963 | }
|
---|
| 2964 | Tk_CreateEventHandler(tkwin, StructureNotifyMask, ChildEventProc,
|
---|
| 2965 | wmPtr);
|
---|
| 2966 | Tk_ManageGeometry(tkwin, &winMarkerMgrInfo, wmPtr);
|
---|
| 2967 | }
|
---|
| 2968 | wmPtr->tkwin = tkwin;
|
---|
| 2969 |
|
---|
| 2970 | wmPtr->flags |= MAP_ITEM;
|
---|
| 2971 | if (wmPtr->drawUnder) {
|
---|
| 2972 | graphPtr->flags |= REDRAW_BACKING_STORE;
|
---|
| 2973 | }
|
---|
| 2974 | Blt_EventuallyRedrawGraph(graphPtr);
|
---|
| 2975 | return TCL_OK;
|
---|
| 2976 | }
|
---|
| 2977 |
|
---|
| 2978 | /*
|
---|
| 2979 | * ----------------------------------------------------------------------
|
---|
| 2980 | *
|
---|
| 2981 | * MapWindowMarker --
|
---|
| 2982 | *
|
---|
| 2983 | * Calculate the layout position for a window marker. Positional
|
---|
| 2984 | * information is saved in the marker.
|
---|
| 2985 | *
|
---|
| 2986 | * Results:
|
---|
| 2987 | * None.
|
---|
| 2988 | *
|
---|
| 2989 | * ----------------------------------------------------------------------
|
---|
| 2990 | */
|
---|
| 2991 | static void
|
---|
| 2992 | MapWindowMarker(markerPtr)
|
---|
| 2993 | Marker *markerPtr;
|
---|
| 2994 | {
|
---|
| 2995 | WindowMarker *wmPtr = (WindowMarker *)markerPtr;
|
---|
| 2996 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 2997 | Extents2D exts;
|
---|
| 2998 | int width, height;
|
---|
| 2999 |
|
---|
| 3000 | if (wmPtr->tkwin == (Tk_Window)NULL) {
|
---|
| 3001 | return;
|
---|
| 3002 | }
|
---|
| 3003 | wmPtr->anchorPos = MapPoint(graphPtr, wmPtr->worldPts, &wmPtr->axes);
|
---|
| 3004 |
|
---|
| 3005 | width = Tk_ReqWidth(wmPtr->tkwin);
|
---|
| 3006 | height = Tk_ReqHeight(wmPtr->tkwin);
|
---|
| 3007 | if (wmPtr->reqWidth > 0) {
|
---|
| 3008 | width = wmPtr->reqWidth;
|
---|
| 3009 | }
|
---|
| 3010 | if (wmPtr->reqHeight > 0) {
|
---|
| 3011 | height = wmPtr->reqHeight;
|
---|
| 3012 | }
|
---|
| 3013 | wmPtr->anchorPos = Blt_TranslatePoint(&wmPtr->anchorPos, width, height,
|
---|
| 3014 | wmPtr->anchor);
|
---|
| 3015 | wmPtr->anchorPos.x += wmPtr->xOffset;
|
---|
| 3016 | wmPtr->anchorPos.y += wmPtr->yOffset;
|
---|
| 3017 | wmPtr->width = width;
|
---|
| 3018 | wmPtr->height = height;
|
---|
| 3019 |
|
---|
| 3020 | /*
|
---|
| 3021 | * Determine the bounding box of the window and test to see if it
|
---|
| 3022 | * is at least partially contained within the plotting area.
|
---|
| 3023 | */
|
---|
| 3024 | exts.left = wmPtr->anchorPos.x;
|
---|
| 3025 | exts.top = wmPtr->anchorPos.y;
|
---|
| 3026 | exts.right = wmPtr->anchorPos.x + wmPtr->width - 1;
|
---|
| 3027 | exts.bottom = wmPtr->anchorPos.y + wmPtr->height - 1;
|
---|
| 3028 | wmPtr->clipped = BoxesDontOverlap(graphPtr, &exts);
|
---|
| 3029 | }
|
---|
| 3030 |
|
---|
| 3031 | /*
|
---|
| 3032 | * ----------------------------------------------------------------------
|
---|
| 3033 | *
|
---|
| 3034 | * PointInWindowMarker --
|
---|
| 3035 | *
|
---|
| 3036 | * ----------------------------------------------------------------------
|
---|
| 3037 | */
|
---|
| 3038 | static int
|
---|
| 3039 | PointInWindowMarker(markerPtr, samplePtr)
|
---|
| 3040 | Marker *markerPtr;
|
---|
| 3041 | Point2D *samplePtr;
|
---|
| 3042 | {
|
---|
| 3043 | WindowMarker *wmPtr = (WindowMarker *)markerPtr;
|
---|
| 3044 |
|
---|
| 3045 | return ((samplePtr->x >= wmPtr->anchorPos.x) &&
|
---|
| 3046 | (samplePtr->x < (wmPtr->anchorPos.x + wmPtr->width)) &&
|
---|
| 3047 | (samplePtr->y >= wmPtr->anchorPos.y) &&
|
---|
| 3048 | (samplePtr->y < (wmPtr->anchorPos.y + wmPtr->height)));
|
---|
| 3049 | }
|
---|
| 3050 |
|
---|
| 3051 | /*
|
---|
| 3052 | * ----------------------------------------------------------------------
|
---|
| 3053 | *
|
---|
| 3054 | * RegionInWindowMarker --
|
---|
| 3055 | *
|
---|
| 3056 | * ----------------------------------------------------------------------
|
---|
| 3057 | */
|
---|
| 3058 | static int
|
---|
| 3059 | RegionInWindowMarker(markerPtr, extsPtr, enclosed)
|
---|
| 3060 | Marker *markerPtr;
|
---|
| 3061 | Extents2D *extsPtr;
|
---|
| 3062 | int enclosed;
|
---|
| 3063 | {
|
---|
| 3064 | WindowMarker *wmPtr = (WindowMarker *)markerPtr;
|
---|
| 3065 |
|
---|
| 3066 | if (wmPtr->nWorldPts < 1) {
|
---|
| 3067 | return FALSE;
|
---|
| 3068 | }
|
---|
| 3069 | if (enclosed) {
|
---|
| 3070 | return ((wmPtr->anchorPos.x >= extsPtr->left) &&
|
---|
| 3071 | (wmPtr->anchorPos.y >= extsPtr->top) &&
|
---|
| 3072 | ((wmPtr->anchorPos.x + wmPtr->width) <= extsPtr->right) &&
|
---|
| 3073 | ((wmPtr->anchorPos.y + wmPtr->height) <= extsPtr->bottom));
|
---|
| 3074 | }
|
---|
| 3075 | return !((wmPtr->anchorPos.x >= extsPtr->right) ||
|
---|
| 3076 | (wmPtr->anchorPos.y >= extsPtr->bottom) ||
|
---|
| 3077 | ((wmPtr->anchorPos.x + wmPtr->width) <= extsPtr->left) ||
|
---|
| 3078 | ((wmPtr->anchorPos.y + wmPtr->height) <= extsPtr->top));
|
---|
| 3079 | }
|
---|
| 3080 |
|
---|
| 3081 | /*
|
---|
| 3082 | * ----------------------------------------------------------------------
|
---|
| 3083 | *
|
---|
| 3084 | * DrawWindowMarker --
|
---|
| 3085 | *
|
---|
| 3086 | * ----------------------------------------------------------------------
|
---|
| 3087 | */
|
---|
| 3088 | /*ARGSUSED*/
|
---|
| 3089 | static void
|
---|
| 3090 | DrawWindowMarker(markerPtr, drawable)
|
---|
| 3091 | Marker *markerPtr;
|
---|
| 3092 | Drawable drawable; /* Pixmap or window to draw into */
|
---|
| 3093 | {
|
---|
| 3094 | WindowMarker *wmPtr = (WindowMarker *)markerPtr;
|
---|
| 3095 |
|
---|
| 3096 | if (wmPtr->tkwin == NULL) {
|
---|
| 3097 | return;
|
---|
| 3098 | }
|
---|
| 3099 | if ((wmPtr->height != Tk_Height(wmPtr->tkwin)) ||
|
---|
| 3100 | (wmPtr->width != Tk_Width(wmPtr->tkwin)) ||
|
---|
| 3101 | ((int)wmPtr->anchorPos.x != Tk_X(wmPtr->tkwin)) ||
|
---|
| 3102 | ((int)wmPtr->anchorPos.y != Tk_Y(wmPtr->tkwin))) {
|
---|
| 3103 | Tk_MoveResizeWindow(wmPtr->tkwin, (int)wmPtr->anchorPos.x,
|
---|
| 3104 | (int)wmPtr->anchorPos.y, wmPtr->width, wmPtr->height);
|
---|
| 3105 | }
|
---|
| 3106 | if (!Tk_IsMapped(wmPtr->tkwin)) {
|
---|
| 3107 | Tk_MapWindow(wmPtr->tkwin);
|
---|
| 3108 | }
|
---|
| 3109 | }
|
---|
| 3110 |
|
---|
| 3111 | /*
|
---|
| 3112 | * ----------------------------------------------------------------------
|
---|
| 3113 | *
|
---|
| 3114 | * WindowMarkerToPostScript --
|
---|
| 3115 | *
|
---|
| 3116 | * ----------------------------------------------------------------------
|
---|
| 3117 | */
|
---|
| 3118 | static void
|
---|
| 3119 | WindowMarkerToPostScript(markerPtr, psToken)
|
---|
| 3120 | Marker *markerPtr;
|
---|
| 3121 | PsToken psToken;
|
---|
| 3122 | {
|
---|
| 3123 | WindowMarker *wmPtr = (WindowMarker *)markerPtr;
|
---|
| 3124 |
|
---|
| 3125 | if (wmPtr->tkwin == NULL) {
|
---|
| 3126 | return;
|
---|
| 3127 | }
|
---|
| 3128 | if (Tk_IsMapped(wmPtr->tkwin)) {
|
---|
| 3129 | Blt_WindowToPostScript(psToken, wmPtr->tkwin, wmPtr->anchorPos.x,
|
---|
| 3130 | wmPtr->anchorPos.y);
|
---|
| 3131 | }
|
---|
| 3132 | }
|
---|
| 3133 |
|
---|
| 3134 | /*
|
---|
| 3135 | * ----------------------------------------------------------------------
|
---|
| 3136 | *
|
---|
| 3137 | * FreeWindowMarker --
|
---|
| 3138 | *
|
---|
| 3139 | * Destroys the structure containing the attributes of the window
|
---|
| 3140 | * marker.
|
---|
| 3141 | *
|
---|
| 3142 | * Results:
|
---|
| 3143 | * None.
|
---|
| 3144 | *
|
---|
| 3145 | * Side effects:
|
---|
| 3146 | * Window is destroyed and removed from the screen.
|
---|
| 3147 | *
|
---|
| 3148 | * ----------------------------------------------------------------------
|
---|
| 3149 | */
|
---|
| 3150 | /*ARGSUSED*/
|
---|
| 3151 | static void
|
---|
| 3152 | FreeWindowMarker(graphPtr, markerPtr)
|
---|
| 3153 | Graph *graphPtr;
|
---|
| 3154 | Marker *markerPtr;
|
---|
| 3155 | {
|
---|
| 3156 | WindowMarker *wmPtr = (WindowMarker *)markerPtr;
|
---|
| 3157 |
|
---|
| 3158 | if (wmPtr->tkwin != NULL) {
|
---|
| 3159 | Tk_DeleteEventHandler(wmPtr->tkwin, StructureNotifyMask,
|
---|
| 3160 | ChildEventProc, wmPtr);
|
---|
| 3161 | Tk_ManageGeometry(wmPtr->tkwin, (Tk_GeomMgr *) 0, (ClientData)0);
|
---|
| 3162 | Tk_DestroyWindow(wmPtr->tkwin);
|
---|
| 3163 | }
|
---|
| 3164 | }
|
---|
| 3165 |
|
---|
| 3166 | /*
|
---|
| 3167 | * ----------------------------------------------------------------------
|
---|
| 3168 | *
|
---|
| 3169 | * CreateWindowMarker --
|
---|
| 3170 | *
|
---|
| 3171 | * Allocate memory and initialize methods for the new window marker.
|
---|
| 3172 | *
|
---|
| 3173 | * Results:
|
---|
| 3174 | * The pointer to the newly allocated marker structure is returned.
|
---|
| 3175 | *
|
---|
| 3176 | * Side effects:
|
---|
| 3177 | * Memory is allocated for the window marker structure.
|
---|
| 3178 | *
|
---|
| 3179 | * ----------------------------------------------------------------------
|
---|
| 3180 | */
|
---|
| 3181 | static Marker *
|
---|
| 3182 | CreateWindowMarker()
|
---|
| 3183 | {
|
---|
| 3184 | WindowMarker *wmPtr;
|
---|
| 3185 |
|
---|
| 3186 | wmPtr = Blt_Calloc(1, sizeof(WindowMarker));
|
---|
| 3187 | if (wmPtr != NULL) {
|
---|
| 3188 | wmPtr->classPtr = &windowMarkerClass;
|
---|
| 3189 | }
|
---|
| 3190 | return (Marker *)wmPtr;
|
---|
| 3191 | }
|
---|
| 3192 |
|
---|
| 3193 | /*
|
---|
| 3194 | * ----------------------------------------------------------------------
|
---|
| 3195 | *
|
---|
| 3196 | * ChildEventProc --
|
---|
| 3197 | *
|
---|
| 3198 | * This procedure is invoked whenever StructureNotify events
|
---|
| 3199 | * occur for a window that's managed as part of a graph window
|
---|
| 3200 | * marker. This procedure's only purpose is to clean up when
|
---|
| 3201 | * windows are deleted.
|
---|
| 3202 | *
|
---|
| 3203 | * Results:
|
---|
| 3204 | * None.
|
---|
| 3205 | *
|
---|
| 3206 | * Side effects:
|
---|
| 3207 | * The window is disassociated from the window item when it is
|
---|
| 3208 | * deleted.
|
---|
| 3209 | *
|
---|
| 3210 | * ----------------------------------------------------------------------
|
---|
| 3211 | */
|
---|
| 3212 | static void
|
---|
| 3213 | ChildEventProc(clientData, eventPtr)
|
---|
| 3214 | ClientData clientData; /* Pointer to record describing window item. */
|
---|
| 3215 | XEvent *eventPtr; /* Describes what just happened. */
|
---|
| 3216 | {
|
---|
| 3217 | WindowMarker *wmPtr = clientData;
|
---|
| 3218 |
|
---|
| 3219 | if (eventPtr->type == DestroyNotify) {
|
---|
| 3220 | wmPtr->tkwin = NULL;
|
---|
| 3221 | }
|
---|
| 3222 | }
|
---|
| 3223 |
|
---|
| 3224 | /*
|
---|
| 3225 | * ----------------------------------------------------------------------
|
---|
| 3226 | *
|
---|
| 3227 | * ChildGeometryProc --
|
---|
| 3228 | *
|
---|
| 3229 | * This procedure is invoked whenever a window that's associated
|
---|
| 3230 | * with a window item changes its requested dimensions.
|
---|
| 3231 | *
|
---|
| 3232 | * Results:
|
---|
| 3233 | * None.
|
---|
| 3234 | *
|
---|
| 3235 | * Side effects:
|
---|
| 3236 | * The size and location on the window of the window may change,
|
---|
| 3237 | * depending on the options specified for the window item.
|
---|
| 3238 | *
|
---|
| 3239 | * ----------------------------------------------------------------------
|
---|
| 3240 | */
|
---|
| 3241 | /* ARGSUSED */
|
---|
| 3242 | static void
|
---|
| 3243 | ChildGeometryProc(clientData, tkwin)
|
---|
| 3244 | ClientData clientData; /* Pointer to record for window item. */
|
---|
| 3245 | Tk_Window tkwin; /* Window that changed its desired size. */
|
---|
| 3246 | {
|
---|
| 3247 | WindowMarker *wmPtr = clientData;
|
---|
| 3248 |
|
---|
| 3249 | if (wmPtr->reqWidth == 0) {
|
---|
| 3250 | wmPtr->width = Tk_ReqWidth(tkwin);
|
---|
| 3251 | }
|
---|
| 3252 | if (wmPtr->reqHeight == 0) {
|
---|
| 3253 | wmPtr->height = Tk_ReqHeight(tkwin);
|
---|
| 3254 | }
|
---|
| 3255 | }
|
---|
| 3256 |
|
---|
| 3257 | /*
|
---|
| 3258 | * ----------------------------------------------------------------------
|
---|
| 3259 | *
|
---|
| 3260 | * ChildCustodyProc --
|
---|
| 3261 | *
|
---|
| 3262 | * This procedure is invoked when an embedded window has been
|
---|
| 3263 | * stolen by another geometry manager. The information and
|
---|
| 3264 | * memory associated with the widget is released.
|
---|
| 3265 | *
|
---|
| 3266 | * Results:
|
---|
| 3267 | * None.
|
---|
| 3268 | *
|
---|
| 3269 | * Side effects:
|
---|
| 3270 | * Arranges for the graph to be redrawn without the embedded
|
---|
| 3271 | * widget at the next idle point.
|
---|
| 3272 | *
|
---|
| 3273 | * ----------------------------------------------------------------------
|
---|
| 3274 | */
|
---|
| 3275 | /* ARGSUSED */
|
---|
| 3276 | static void
|
---|
| 3277 | ChildCustodyProc(clientData, tkwin)
|
---|
| 3278 | ClientData clientData; /* Window marker to be destroyed. */
|
---|
| 3279 | Tk_Window tkwin; /* Not used. */
|
---|
| 3280 | {
|
---|
| 3281 | Marker *markerPtr = clientData;
|
---|
| 3282 | Graph *graphPtr;
|
---|
| 3283 |
|
---|
| 3284 | graphPtr = markerPtr->graphPtr;
|
---|
| 3285 | DestroyMarker(markerPtr);
|
---|
| 3286 | /*
|
---|
| 3287 | * Not really needed. We should get an Expose event when the
|
---|
| 3288 | * child window is unmapped.
|
---|
| 3289 | */
|
---|
| 3290 | Blt_EventuallyRedrawGraph(graphPtr);
|
---|
| 3291 | }
|
---|
| 3292 |
|
---|
| 3293 | /*
|
---|
| 3294 | * ----------------------------------------------------------------------
|
---|
| 3295 | *
|
---|
| 3296 | * MapLineMarker --
|
---|
| 3297 | *
|
---|
| 3298 | * Calculate the layout position for a line marker. Positional
|
---|
| 3299 | * information is saved in the marker. The line positions are
|
---|
| 3300 | * stored in an array of points (malloc'ed).
|
---|
| 3301 | *
|
---|
| 3302 | * Results:
|
---|
| 3303 | * None.
|
---|
| 3304 | *
|
---|
| 3305 | * ----------------------------------------------------------------------
|
---|
| 3306 | */
|
---|
| 3307 | static void
|
---|
| 3308 | MapLineMarker(markerPtr)
|
---|
| 3309 | Marker *markerPtr;
|
---|
| 3310 | {
|
---|
| 3311 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 3312 | LineMarker *lmPtr = (LineMarker *)markerPtr;
|
---|
| 3313 | Point2D *srcPtr, *endPtr;
|
---|
| 3314 | Segment2D *segments, *segPtr;
|
---|
| 3315 | Point2D p, q, next;
|
---|
| 3316 | Extents2D exts;
|
---|
| 3317 |
|
---|
| 3318 | lmPtr->nSegments = 0;
|
---|
| 3319 | if (lmPtr->segments != NULL) {
|
---|
| 3320 | Blt_Free(lmPtr->segments);
|
---|
| 3321 | }
|
---|
| 3322 | if (lmPtr->nWorldPts < 2) {
|
---|
| 3323 | return; /* Too few points */
|
---|
| 3324 | }
|
---|
| 3325 | Blt_GraphExtents(graphPtr, &exts);
|
---|
| 3326 |
|
---|
| 3327 | /*
|
---|
| 3328 | * Allow twice the number of world coordinates. The line will
|
---|
| 3329 | * represented as series of line segments, not one continous
|
---|
| 3330 | * polyline. This is because clipping against the plot area may
|
---|
| 3331 | * chop the line into several disconnected segments.
|
---|
| 3332 | */
|
---|
| 3333 | segments = Blt_Malloc(lmPtr->nWorldPts * sizeof(Segment2D));
|
---|
| 3334 | srcPtr = lmPtr->worldPts;
|
---|
| 3335 | p = MapPoint(graphPtr, srcPtr, &lmPtr->axes);
|
---|
| 3336 | p.x += lmPtr->xOffset;
|
---|
| 3337 | p.y += lmPtr->yOffset;
|
---|
| 3338 |
|
---|
| 3339 | segPtr = segments;
|
---|
| 3340 | for (srcPtr++, endPtr = lmPtr->worldPts + lmPtr->nWorldPts;
|
---|
| 3341 | srcPtr < endPtr; srcPtr++) {
|
---|
| 3342 | next = MapPoint(graphPtr, srcPtr, &lmPtr->axes);
|
---|
| 3343 | next.x += lmPtr->xOffset;
|
---|
| 3344 | next.y += lmPtr->yOffset;
|
---|
| 3345 | q = next;
|
---|
| 3346 | if (Blt_LineRectClip(&exts, &p, &q)) {
|
---|
| 3347 | segPtr->p = p;
|
---|
| 3348 | segPtr->q = q;
|
---|
| 3349 | segPtr++;
|
---|
| 3350 | }
|
---|
| 3351 | p = next;
|
---|
| 3352 | }
|
---|
| 3353 | lmPtr->nSegments = segPtr - segments;
|
---|
| 3354 | lmPtr->segments = segments;
|
---|
| 3355 | lmPtr->clipped = (lmPtr->nSegments == 0);
|
---|
| 3356 | }
|
---|
| 3357 |
|
---|
| 3358 | static int
|
---|
| 3359 | PointInLineMarker(markerPtr, samplePtr)
|
---|
| 3360 | Marker *markerPtr;
|
---|
| 3361 | Point2D *samplePtr;
|
---|
| 3362 | {
|
---|
| 3363 | LineMarker *lmPtr = (LineMarker *)markerPtr;
|
---|
| 3364 |
|
---|
| 3365 | return Blt_PointInSegments(samplePtr, lmPtr->segments, lmPtr->nSegments,
|
---|
| 3366 | (double)lmPtr->graphPtr->halo);
|
---|
| 3367 | }
|
---|
| 3368 |
|
---|
| 3369 | /*
|
---|
| 3370 | * ----------------------------------------------------------------------
|
---|
| 3371 | *
|
---|
| 3372 | * RegionInLineMarker --
|
---|
| 3373 | *
|
---|
| 3374 | * ----------------------------------------------------------------------
|
---|
| 3375 | */
|
---|
| 3376 | static int
|
---|
| 3377 | RegionInLineMarker(markerPtr, extsPtr, enclosed)
|
---|
| 3378 | Marker *markerPtr;
|
---|
| 3379 | Extents2D *extsPtr;
|
---|
| 3380 | int enclosed;
|
---|
| 3381 | {
|
---|
| 3382 | LineMarker *lmPtr = (LineMarker *)markerPtr;
|
---|
| 3383 |
|
---|
| 3384 | if (lmPtr->nWorldPts < 2) {
|
---|
| 3385 | return FALSE;
|
---|
| 3386 | }
|
---|
| 3387 | if (enclosed) {
|
---|
| 3388 | Point2D p;
|
---|
| 3389 | Point2D *pointPtr, *endPtr;
|
---|
| 3390 |
|
---|
| 3391 | for (pointPtr = lmPtr->worldPts,
|
---|
| 3392 | endPtr = lmPtr->worldPts + lmPtr->nWorldPts;
|
---|
| 3393 | pointPtr < endPtr; pointPtr++) {
|
---|
| 3394 | p = MapPoint(lmPtr->graphPtr, pointPtr, &lmPtr->axes);
|
---|
| 3395 | if ((p.x < extsPtr->left) && (p.x > extsPtr->right) &&
|
---|
| 3396 | (p.y < extsPtr->top) && (p.y > extsPtr->bottom)) {
|
---|
| 3397 | return FALSE;
|
---|
| 3398 | }
|
---|
| 3399 | }
|
---|
| 3400 | return TRUE; /* All points inside bounding box. */
|
---|
| 3401 | } else {
|
---|
| 3402 | Point2D p, q;
|
---|
| 3403 | int count;
|
---|
| 3404 | Point2D *pointPtr, *endPtr;
|
---|
| 3405 |
|
---|
| 3406 | count = 0;
|
---|
| 3407 | for (pointPtr = lmPtr->worldPts,
|
---|
| 3408 | endPtr = lmPtr->worldPts + (lmPtr->nWorldPts - 1);
|
---|
| 3409 | pointPtr < endPtr; pointPtr++) {
|
---|
| 3410 | p = MapPoint(lmPtr->graphPtr, pointPtr, &lmPtr->axes);
|
---|
| 3411 | q = MapPoint(lmPtr->graphPtr, pointPtr + 1, &lmPtr->axes);
|
---|
| 3412 | if (Blt_LineRectClip(extsPtr, &p, &q)) {
|
---|
| 3413 | count++;
|
---|
| 3414 | }
|
---|
| 3415 | }
|
---|
| 3416 | return (count > 0); /* At least 1 segment passes through region. */
|
---|
| 3417 | }
|
---|
| 3418 | }
|
---|
| 3419 |
|
---|
| 3420 | /*
|
---|
| 3421 | * ----------------------------------------------------------------------
|
---|
| 3422 | *
|
---|
| 3423 | * DrawLineMarker --
|
---|
| 3424 | *
|
---|
| 3425 | * ----------------------------------------------------------------------
|
---|
| 3426 | */
|
---|
| 3427 | static void
|
---|
| 3428 | DrawLineMarker(markerPtr, drawable)
|
---|
| 3429 | Marker *markerPtr;
|
---|
| 3430 | Drawable drawable; /* Pixmap or window to draw into */
|
---|
| 3431 | {
|
---|
| 3432 | LineMarker *lmPtr = (LineMarker *)markerPtr;
|
---|
| 3433 |
|
---|
| 3434 | if (lmPtr->nSegments > 0) {
|
---|
| 3435 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 3436 |
|
---|
| 3437 | Blt_Draw2DSegments(graphPtr->display, drawable, lmPtr->gc,
|
---|
| 3438 | lmPtr->segments, lmPtr->nSegments);
|
---|
| 3439 | if (lmPtr->xor) { /* Toggle the drawing state */
|
---|
| 3440 | lmPtr->xorState = (lmPtr->xorState == 0);
|
---|
| 3441 | }
|
---|
| 3442 | }
|
---|
| 3443 | }
|
---|
| 3444 |
|
---|
| 3445 | /*
|
---|
| 3446 | * ----------------------------------------------------------------------
|
---|
| 3447 | *
|
---|
| 3448 | * ConfigureLineMarker --
|
---|
| 3449 | *
|
---|
| 3450 | * This procedure is called to process an argv/argc list, plus
|
---|
| 3451 | * the Tk option database, in order to configure (or reconfigure)
|
---|
| 3452 | * a line marker.
|
---|
| 3453 | *
|
---|
| 3454 | * Results:
|
---|
| 3455 | * A standard Tcl result. If TCL_ERROR is returned, then
|
---|
| 3456 | * interp->result contains an error message.
|
---|
| 3457 | *
|
---|
| 3458 | * Side effects:
|
---|
| 3459 | * Configuration information, such as line width, colors, dashes,
|
---|
| 3460 | * etc. get set for markerPtr; old resources get freed, if there
|
---|
| 3461 | * were any. The marker is eventually redisplayed.
|
---|
| 3462 | *
|
---|
| 3463 | * ----------------------------------------------------------------------
|
---|
| 3464 | */
|
---|
| 3465 | /*ARGSUSED*/
|
---|
| 3466 | static int
|
---|
| 3467 | ConfigureLineMarker(markerPtr)
|
---|
| 3468 | Marker *markerPtr;
|
---|
| 3469 | {
|
---|
| 3470 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 3471 | LineMarker *lmPtr = (LineMarker *)markerPtr;
|
---|
| 3472 | GC newGC;
|
---|
| 3473 | XGCValues gcValues;
|
---|
| 3474 | unsigned long gcMask;
|
---|
| 3475 | Drawable drawable;
|
---|
| 3476 |
|
---|
| 3477 | drawable = Tk_WindowId(graphPtr->tkwin);
|
---|
| 3478 | gcMask = (GCLineWidth | GCLineStyle | GCCapStyle | GCJoinStyle);
|
---|
| 3479 | if (lmPtr->outlineColor != NULL) {
|
---|
| 3480 | gcMask |= GCForeground;
|
---|
| 3481 | gcValues.foreground = lmPtr->outlineColor->pixel;
|
---|
| 3482 | }
|
---|
| 3483 | if (lmPtr->fillColor != NULL) {
|
---|
| 3484 | gcMask |= GCBackground;
|
---|
| 3485 | gcValues.background = lmPtr->fillColor->pixel;
|
---|
| 3486 | }
|
---|
| 3487 | gcValues.cap_style = lmPtr->capStyle;
|
---|
| 3488 | gcValues.join_style = lmPtr->joinStyle;
|
---|
| 3489 | gcValues.line_width = LineWidth(lmPtr->lineWidth);
|
---|
| 3490 | gcValues.line_style = LineSolid;
|
---|
| 3491 | if (LineIsDashed(lmPtr->dashes)) {
|
---|
| 3492 | gcValues.line_style =
|
---|
| 3493 | (gcMask & GCBackground) ? LineDoubleDash : LineOnOffDash;
|
---|
| 3494 | }
|
---|
| 3495 | if (lmPtr->xor) {
|
---|
| 3496 | unsigned long pixel;
|
---|
| 3497 | gcValues.function = GXxor;
|
---|
| 3498 |
|
---|
| 3499 | gcMask |= GCFunction;
|
---|
| 3500 | if (graphPtr->plotBg == NULL) {
|
---|
| 3501 | pixel = WhitePixelOfScreen(Tk_Screen(graphPtr->tkwin));
|
---|
| 3502 | } else {
|
---|
| 3503 | pixel = graphPtr->plotBg->pixel;
|
---|
| 3504 | }
|
---|
| 3505 | if (gcMask & GCBackground) {
|
---|
| 3506 | gcValues.background ^= pixel;
|
---|
| 3507 | }
|
---|
| 3508 | gcValues.foreground ^= pixel;
|
---|
| 3509 | if (drawable != None) {
|
---|
| 3510 | DrawLineMarker(markerPtr, drawable);
|
---|
| 3511 | }
|
---|
| 3512 | }
|
---|
| 3513 | newGC = Blt_GetPrivateGC(graphPtr->tkwin, gcMask, &gcValues);
|
---|
| 3514 | if (lmPtr->gc != NULL) {
|
---|
| 3515 | Blt_FreePrivateGC(graphPtr->display, lmPtr->gc);
|
---|
| 3516 | }
|
---|
| 3517 | if (LineIsDashed(lmPtr->dashes)) {
|
---|
| 3518 | Blt_SetDashes(graphPtr->display, newGC, &lmPtr->dashes);
|
---|
| 3519 | }
|
---|
| 3520 | lmPtr->gc = newGC;
|
---|
| 3521 | if (lmPtr->xor) {
|
---|
| 3522 | if (drawable != None) {
|
---|
| 3523 | MapLineMarker(markerPtr);
|
---|
| 3524 | DrawLineMarker(markerPtr, drawable);
|
---|
| 3525 | }
|
---|
| 3526 | return TCL_OK;
|
---|
| 3527 | }
|
---|
| 3528 | lmPtr->flags |= MAP_ITEM;
|
---|
| 3529 | if (lmPtr->drawUnder) {
|
---|
| 3530 | graphPtr->flags |= REDRAW_BACKING_STORE;
|
---|
| 3531 | }
|
---|
| 3532 | Blt_EventuallyRedrawGraph(graphPtr);
|
---|
| 3533 | return TCL_OK;
|
---|
| 3534 | }
|
---|
| 3535 |
|
---|
| 3536 | /*
|
---|
| 3537 | * ----------------------------------------------------------------------
|
---|
| 3538 | *
|
---|
| 3539 | * LineMarkerToPostScript --
|
---|
| 3540 | *
|
---|
| 3541 | * Prints postscript commands to display the connect line.
|
---|
| 3542 | * Dashed lines need to be handled specially, especially if a
|
---|
| 3543 | * background color is designated.
|
---|
| 3544 | *
|
---|
| 3545 | * Results:
|
---|
| 3546 | * None.
|
---|
| 3547 | *
|
---|
| 3548 | * Side effects:
|
---|
| 3549 | * PostScript output commands are saved in the interpreter
|
---|
| 3550 | * (infoPtr->interp) result field.
|
---|
| 3551 | *
|
---|
| 3552 | * ----------------------------------------------------------------------
|
---|
| 3553 | */
|
---|
| 3554 | static void
|
---|
| 3555 | LineMarkerToPostScript(markerPtr, psToken)
|
---|
| 3556 | Marker *markerPtr;
|
---|
| 3557 | PsToken psToken;
|
---|
| 3558 | {
|
---|
| 3559 | LineMarker *lmPtr = (LineMarker *)markerPtr;
|
---|
| 3560 |
|
---|
| 3561 | if (lmPtr->nSegments > 0) {
|
---|
| 3562 | Blt_LineAttributesToPostScript(psToken, lmPtr->outlineColor,
|
---|
| 3563 | lmPtr->lineWidth, &lmPtr->dashes, lmPtr->capStyle,
|
---|
| 3564 | lmPtr->joinStyle);
|
---|
| 3565 | if ((LineIsDashed(lmPtr->dashes)) && (lmPtr->fillColor != NULL)) {
|
---|
| 3566 | Blt_AppendToPostScript(psToken, "/DashesProc {\n gsave\n ",
|
---|
| 3567 | (char *)NULL);
|
---|
| 3568 | Blt_BackgroundToPostScript(psToken, lmPtr->fillColor);
|
---|
| 3569 | Blt_AppendToPostScript(psToken, " ", (char *)NULL);
|
---|
| 3570 | Blt_LineDashesToPostScript(psToken, (Blt_Dashes *)NULL);
|
---|
| 3571 | Blt_AppendToPostScript(psToken,
|
---|
| 3572 | "stroke\n",
|
---|
| 3573 | " grestore\n",
|
---|
| 3574 | "} def\n", (char *)NULL);
|
---|
| 3575 | } else {
|
---|
| 3576 | Blt_AppendToPostScript(psToken, "/DashesProc {} def\n",
|
---|
| 3577 | (char *)NULL);
|
---|
| 3578 | }
|
---|
| 3579 | Blt_2DSegmentsToPostScript(psToken, lmPtr->segments, lmPtr->nSegments);
|
---|
| 3580 | }
|
---|
| 3581 | }
|
---|
| 3582 |
|
---|
| 3583 | /*
|
---|
| 3584 | * ----------------------------------------------------------------------
|
---|
| 3585 | *
|
---|
| 3586 | * FreeLineMarker --
|
---|
| 3587 | *
|
---|
| 3588 | * Destroys the structure and attributes of a line marker.
|
---|
| 3589 | *
|
---|
| 3590 | * Results:
|
---|
| 3591 | * None.
|
---|
| 3592 | *
|
---|
| 3593 | * Side effects:
|
---|
| 3594 | * Line attributes (GCs, colors, stipple, etc) get released.
|
---|
| 3595 | * Memory is deallocated, X resources are freed.
|
---|
| 3596 | *
|
---|
| 3597 | * ----------------------------------------------------------------------
|
---|
| 3598 | */
|
---|
| 3599 | static void
|
---|
| 3600 | FreeLineMarker(graphPtr, markerPtr)
|
---|
| 3601 | Graph *graphPtr;
|
---|
| 3602 | Marker *markerPtr;
|
---|
| 3603 | {
|
---|
| 3604 | LineMarker *lmPtr = (LineMarker *)markerPtr;
|
---|
| 3605 |
|
---|
| 3606 | if (lmPtr->gc != NULL) {
|
---|
| 3607 | Blt_FreePrivateGC(graphPtr->display, lmPtr->gc);
|
---|
| 3608 | }
|
---|
| 3609 | if (lmPtr->segments != NULL) {
|
---|
| 3610 | Blt_Free(lmPtr->segments);
|
---|
| 3611 | }
|
---|
| 3612 | }
|
---|
| 3613 |
|
---|
| 3614 |
|
---|
| 3615 | /*
|
---|
| 3616 | * ----------------------------------------------------------------------
|
---|
| 3617 | *
|
---|
| 3618 | * CreateLineMarker --
|
---|
| 3619 | *
|
---|
| 3620 | * Allocate memory and initialize methods for a new line marker.
|
---|
| 3621 | *
|
---|
| 3622 | * Results:
|
---|
| 3623 | * The pointer to the newly allocated marker structure is returned.
|
---|
| 3624 | *
|
---|
| 3625 | * Side effects:
|
---|
| 3626 | * Memory is allocated for the line marker structure.
|
---|
| 3627 | *
|
---|
| 3628 | * ----------------------------------------------------------------------
|
---|
| 3629 | */
|
---|
| 3630 | static Marker *
|
---|
| 3631 | CreateLineMarker()
|
---|
| 3632 | {
|
---|
| 3633 | LineMarker *lmPtr;
|
---|
| 3634 |
|
---|
| 3635 | lmPtr = Blt_Calloc(1, sizeof(LineMarker));
|
---|
| 3636 | if (lmPtr != NULL) {
|
---|
| 3637 | lmPtr->classPtr = &lineMarkerClass;
|
---|
| 3638 | lmPtr->xor = FALSE;
|
---|
| 3639 | lmPtr->capStyle = CapButt;
|
---|
| 3640 | lmPtr->joinStyle = JoinMiter;
|
---|
| 3641 | }
|
---|
| 3642 | return (Marker *)lmPtr;
|
---|
| 3643 | }
|
---|
| 3644 |
|
---|
| 3645 | /*
|
---|
| 3646 | * ----------------------------------------------------------------------
|
---|
| 3647 | *
|
---|
| 3648 | * MapPolygonMarker --
|
---|
| 3649 | *
|
---|
| 3650 | * Calculate the layout position for a polygon marker. Positional
|
---|
| 3651 | * information is saved in the polygon in an array of points
|
---|
| 3652 | * (malloc'ed).
|
---|
| 3653 | *
|
---|
| 3654 | * Results:
|
---|
| 3655 | * None.
|
---|
| 3656 | *
|
---|
| 3657 | * ----------------------------------------------------------------------
|
---|
| 3658 | */
|
---|
| 3659 | static void
|
---|
| 3660 | MapPolygonMarker(markerPtr)
|
---|
| 3661 | Marker *markerPtr;
|
---|
| 3662 | {
|
---|
| 3663 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 3664 | PolygonMarker *pmPtr = (PolygonMarker *)markerPtr;
|
---|
| 3665 | Point2D *srcPtr, *destPtr, *endPtr;
|
---|
| 3666 | Point2D *screenPts;
|
---|
| 3667 | Extents2D exts;
|
---|
| 3668 | int nScreenPts;
|
---|
| 3669 |
|
---|
| 3670 | if (pmPtr->outlinePts != NULL) {
|
---|
| 3671 | Blt_Free(pmPtr->outlinePts);
|
---|
| 3672 | pmPtr->outlinePts = NULL;
|
---|
| 3673 | pmPtr->nOutlinePts = 0;
|
---|
| 3674 | }
|
---|
| 3675 | if (pmPtr->fillPts != NULL) {
|
---|
| 3676 | Blt_Free(pmPtr->fillPts);
|
---|
| 3677 | pmPtr->fillPts = NULL;
|
---|
| 3678 | pmPtr->nFillPts = 0;
|
---|
| 3679 | }
|
---|
| 3680 | if (pmPtr->screenPts != NULL) {
|
---|
| 3681 | Blt_Free(pmPtr->screenPts);
|
---|
| 3682 | pmPtr->screenPts = NULL;
|
---|
| 3683 | }
|
---|
| 3684 | if (pmPtr->nWorldPts < 3) {
|
---|
| 3685 | return; /* Too few points */
|
---|
| 3686 | }
|
---|
| 3687 |
|
---|
| 3688 | /*
|
---|
| 3689 | * Allocate and fill a temporary array to hold the screen
|
---|
| 3690 | * coordinates of the polygon.
|
---|
| 3691 | */
|
---|
| 3692 | nScreenPts = pmPtr->nWorldPts + 1;
|
---|
| 3693 | screenPts = Blt_Malloc((nScreenPts + 1) * sizeof(Point2D));
|
---|
| 3694 | endPtr = pmPtr->worldPts + pmPtr->nWorldPts;
|
---|
| 3695 | destPtr = screenPts;
|
---|
| 3696 | for (srcPtr = pmPtr->worldPts; srcPtr < endPtr; srcPtr++) {
|
---|
| 3697 | *destPtr = MapPoint(graphPtr, srcPtr, &pmPtr->axes);
|
---|
| 3698 | destPtr->x += pmPtr->xOffset;
|
---|
| 3699 | destPtr->y += pmPtr->yOffset;
|
---|
| 3700 | destPtr++;
|
---|
| 3701 | }
|
---|
| 3702 | *destPtr = screenPts[0];
|
---|
| 3703 |
|
---|
| 3704 | Blt_GraphExtents(graphPtr, &exts);
|
---|
| 3705 | pmPtr->clipped = TRUE;
|
---|
| 3706 | if (pmPtr->fill.fgColor != NULL) { /* Polygon fill required. */
|
---|
| 3707 | Point2D *fillPts;
|
---|
| 3708 | int n;
|
---|
| 3709 |
|
---|
| 3710 | fillPts = Blt_Malloc(sizeof(Point2D) * nScreenPts * 3);
|
---|
| 3711 | assert(fillPts);
|
---|
| 3712 | n = Blt_PolyRectClip(&exts, screenPts, pmPtr->nWorldPts, fillPts);
|
---|
| 3713 | if (n < 3) {
|
---|
| 3714 | Blt_Free(fillPts);
|
---|
| 3715 | } else {
|
---|
| 3716 | pmPtr->nFillPts = n;
|
---|
| 3717 | pmPtr->fillPts = fillPts;
|
---|
| 3718 | pmPtr->clipped = FALSE;
|
---|
| 3719 | }
|
---|
| 3720 | }
|
---|
| 3721 | if ((pmPtr->outline.fgColor != NULL) && (pmPtr->lineWidth > 0)) {
|
---|
| 3722 | Segment2D *outlinePts;
|
---|
| 3723 | register Segment2D *segPtr;
|
---|
| 3724 | /*
|
---|
| 3725 | * Generate line segments representing the polygon outline.
|
---|
| 3726 | * The resulting outline may or may not be closed from
|
---|
| 3727 | * viewport clipping.
|
---|
| 3728 | */
|
---|
| 3729 | outlinePts = Blt_Malloc(nScreenPts * sizeof(Segment2D));
|
---|
| 3730 | if (outlinePts == NULL) {
|
---|
| 3731 | return; /* Can't allocate point array */
|
---|
| 3732 | }
|
---|
| 3733 | /*
|
---|
| 3734 | * Note that this assumes that the point array contains an
|
---|
| 3735 | * extra point that closes the polygon.
|
---|
| 3736 | */
|
---|
| 3737 | segPtr = outlinePts;
|
---|
| 3738 | for (srcPtr = screenPts, endPtr = screenPts + (nScreenPts - 1);
|
---|
| 3739 | srcPtr < endPtr; srcPtr++) {
|
---|
| 3740 | segPtr->p = srcPtr[0];
|
---|
| 3741 | segPtr->q = srcPtr[1];
|
---|
| 3742 | if (Blt_LineRectClip(&exts, &segPtr->p, &segPtr->q)) {
|
---|
| 3743 | segPtr++;
|
---|
| 3744 | }
|
---|
| 3745 | }
|
---|
| 3746 | pmPtr->nOutlinePts = segPtr - outlinePts;
|
---|
| 3747 | pmPtr->outlinePts = outlinePts;
|
---|
| 3748 | if (pmPtr->nOutlinePts > 0) {
|
---|
| 3749 | pmPtr->clipped = FALSE;
|
---|
| 3750 | }
|
---|
| 3751 | }
|
---|
| 3752 | pmPtr->screenPts = screenPts;
|
---|
| 3753 | }
|
---|
| 3754 |
|
---|
| 3755 | static int
|
---|
| 3756 | PointInPolygonMarker(markerPtr, samplePtr)
|
---|
| 3757 | Marker *markerPtr;
|
---|
| 3758 | Point2D *samplePtr;
|
---|
| 3759 | {
|
---|
| 3760 | PolygonMarker *pmPtr = (PolygonMarker *)markerPtr;
|
---|
| 3761 |
|
---|
| 3762 | if ((pmPtr->nWorldPts >= 3) && (pmPtr->screenPts != NULL)) {
|
---|
| 3763 | return Blt_PointInPolygon(samplePtr, pmPtr->screenPts,
|
---|
| 3764 | pmPtr->nWorldPts + 1);
|
---|
| 3765 | }
|
---|
| 3766 | return FALSE;
|
---|
| 3767 | }
|
---|
| 3768 |
|
---|
| 3769 | /*
|
---|
| 3770 | * ----------------------------------------------------------------------
|
---|
| 3771 | *
|
---|
| 3772 | * RegionInPolygonMarker --
|
---|
| 3773 | *
|
---|
| 3774 | * ----------------------------------------------------------------------
|
---|
| 3775 | */
|
---|
| 3776 | static int
|
---|
| 3777 | RegionInPolygonMarker(markerPtr, extsPtr, enclosed)
|
---|
| 3778 | Marker *markerPtr;
|
---|
| 3779 | Extents2D *extsPtr;
|
---|
| 3780 | int enclosed;
|
---|
| 3781 | {
|
---|
| 3782 | PolygonMarker *pmPtr = (PolygonMarker *)markerPtr;
|
---|
| 3783 |
|
---|
| 3784 | if ((pmPtr->nWorldPts >= 3) && (pmPtr->screenPts != NULL)) {
|
---|
| 3785 | return Blt_RegionInPolygon(extsPtr, pmPtr->screenPts, pmPtr->nWorldPts,
|
---|
| 3786 | enclosed);
|
---|
| 3787 | }
|
---|
| 3788 | return FALSE;
|
---|
| 3789 | }
|
---|
| 3790 |
|
---|
| 3791 | static void
|
---|
| 3792 | DrawPolygonMarker(markerPtr, drawable)
|
---|
| 3793 | Marker *markerPtr;
|
---|
| 3794 | Drawable drawable; /* Pixmap or window to draw into */
|
---|
| 3795 | {
|
---|
| 3796 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 3797 | PolygonMarker *pmPtr = (PolygonMarker *)markerPtr;
|
---|
| 3798 |
|
---|
| 3799 | /* Draw polygon fill region */
|
---|
| 3800 | if ((pmPtr->nFillPts > 0) && (pmPtr->fill.fgColor != NULL)) {
|
---|
| 3801 | XPoint *destPtr, *pointArr;
|
---|
| 3802 | Point2D *srcPtr, *endPtr;
|
---|
| 3803 |
|
---|
| 3804 | pointArr = Blt_Malloc(pmPtr->nFillPts * sizeof(XPoint));
|
---|
| 3805 | if (pointArr == NULL) {
|
---|
| 3806 | return;
|
---|
| 3807 | }
|
---|
| 3808 | destPtr = pointArr;
|
---|
| 3809 | for (srcPtr = pmPtr->fillPts,
|
---|
| 3810 | endPtr = pmPtr->fillPts + pmPtr->nFillPts; srcPtr < endPtr;
|
---|
| 3811 | srcPtr++) {
|
---|
| 3812 | destPtr->x = (short int)srcPtr->x;
|
---|
| 3813 | destPtr->y = (short int)srcPtr->y;
|
---|
| 3814 | destPtr++;
|
---|
| 3815 | }
|
---|
| 3816 | XFillPolygon(graphPtr->display, drawable, pmPtr->fillGC,
|
---|
| 3817 | pointArr, pmPtr->nFillPts, Complex, CoordModeOrigin);
|
---|
| 3818 | Blt_Free(pointArr);
|
---|
| 3819 | }
|
---|
| 3820 | /* and then the outline */
|
---|
| 3821 | if ((pmPtr->nOutlinePts > 0) && (pmPtr->lineWidth > 0) &&
|
---|
| 3822 | (pmPtr->outline.fgColor != NULL)) {
|
---|
| 3823 | Blt_Draw2DSegments(graphPtr->display, drawable, pmPtr->outlineGC,
|
---|
| 3824 | pmPtr->outlinePts, pmPtr->nOutlinePts);
|
---|
| 3825 | }
|
---|
| 3826 | }
|
---|
| 3827 |
|
---|
| 3828 |
|
---|
| 3829 | static void
|
---|
| 3830 | PolygonMarkerToPostScript(markerPtr, psToken)
|
---|
| 3831 | Marker *markerPtr;
|
---|
| 3832 | PsToken psToken;
|
---|
| 3833 | {
|
---|
| 3834 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 3835 | PolygonMarker *pmPtr = (PolygonMarker *)markerPtr;
|
---|
| 3836 |
|
---|
| 3837 | if (pmPtr->fill.fgColor != NULL) {
|
---|
| 3838 |
|
---|
| 3839 | /*
|
---|
| 3840 | * Options: fg bg
|
---|
| 3841 | * Draw outline only.
|
---|
| 3842 | * x Draw solid or stipple.
|
---|
| 3843 | * x x Draw solid or stipple.
|
---|
| 3844 | */
|
---|
| 3845 |
|
---|
| 3846 | /* Create a path to use for both the polygon and its outline. */
|
---|
| 3847 | Blt_PathToPostScript(psToken, pmPtr->fillPts, pmPtr->nFillPts);
|
---|
| 3848 | Blt_AppendToPostScript(psToken, "closepath\n", (char *)NULL);
|
---|
| 3849 |
|
---|
| 3850 | /* If the background fill color was specified, draw the
|
---|
| 3851 | * polygon in a solid fashion with that color. */
|
---|
| 3852 | if (pmPtr->fill.bgColor != NULL) {
|
---|
| 3853 | Blt_BackgroundToPostScript(psToken, pmPtr->fill.bgColor);
|
---|
| 3854 | Blt_AppendToPostScript(psToken, "Fill\n", (char *)NULL);
|
---|
| 3855 | }
|
---|
| 3856 | Blt_ForegroundToPostScript(psToken, pmPtr->fill.fgColor);
|
---|
| 3857 | if (pmPtr->stipple != None) {
|
---|
| 3858 | /* Draw the stipple in the foreground color. */
|
---|
| 3859 | Blt_StippleToPostScript(psToken, graphPtr->display,
|
---|
| 3860 | pmPtr->stipple);
|
---|
| 3861 | } else {
|
---|
| 3862 | Blt_AppendToPostScript(psToken, "Fill\n", (char *)NULL);
|
---|
| 3863 | }
|
---|
| 3864 | }
|
---|
| 3865 |
|
---|
| 3866 | /* Draw the outline in the foreground color. */
|
---|
| 3867 | if ((pmPtr->lineWidth > 0) && (pmPtr->outline.fgColor != NULL)) {
|
---|
| 3868 |
|
---|
| 3869 | /* Set up the line attributes. */
|
---|
| 3870 | Blt_LineAttributesToPostScript(psToken, pmPtr->outline.fgColor,
|
---|
| 3871 | pmPtr->lineWidth, &pmPtr->dashes, pmPtr->capStyle,
|
---|
| 3872 | pmPtr->joinStyle);
|
---|
| 3873 |
|
---|
| 3874 | /*
|
---|
| 3875 | * Define on-the-fly a PostScript macro "DashesProc" that
|
---|
| 3876 | * will be executed for each call to the Polygon drawing
|
---|
| 3877 | * routine. If the line isn't dashed, simply make this an
|
---|
| 3878 | * empty definition.
|
---|
| 3879 | */
|
---|
| 3880 | if ((pmPtr->outline.bgColor != NULL) && (LineIsDashed(pmPtr->dashes))) {
|
---|
| 3881 | Blt_AppendToPostScript(psToken,
|
---|
| 3882 | "/DashesProc {\n",
|
---|
| 3883 | "gsave\n ", (char *)NULL);
|
---|
| 3884 | Blt_BackgroundToPostScript(psToken, pmPtr->outline.bgColor);
|
---|
| 3885 | Blt_AppendToPostScript(psToken, " ", (char *)NULL);
|
---|
| 3886 | Blt_LineDashesToPostScript(psToken, (Blt_Dashes *)NULL);
|
---|
| 3887 | Blt_AppendToPostScript(psToken,
|
---|
| 3888 | "stroke\n",
|
---|
| 3889 | " grestore\n",
|
---|
| 3890 | "} def\n", (char *)NULL);
|
---|
| 3891 | } else {
|
---|
| 3892 | Blt_AppendToPostScript(psToken, "/DashesProc {} def\n",
|
---|
| 3893 | (char *)NULL);
|
---|
| 3894 | }
|
---|
| 3895 | Blt_2DSegmentsToPostScript(psToken, pmPtr->outlinePts,
|
---|
| 3896 | pmPtr->nOutlinePts);
|
---|
| 3897 | }
|
---|
| 3898 | }
|
---|
| 3899 |
|
---|
| 3900 | /*
|
---|
| 3901 | * ----------------------------------------------------------------------
|
---|
| 3902 | *
|
---|
| 3903 | * ConfigurePolygonMarker --
|
---|
| 3904 | *
|
---|
| 3905 | * This procedure is called to process an argv/argc list, plus
|
---|
| 3906 | * the Tk option database, in order to configure (or reconfigure)
|
---|
| 3907 | * a polygon marker.
|
---|
| 3908 | *
|
---|
| 3909 | * Results:
|
---|
| 3910 | * A standard Tcl result. If TCL_ERROR is returned, then
|
---|
| 3911 | * interp->result contains an error message.
|
---|
| 3912 | *
|
---|
| 3913 | * Side effects:
|
---|
| 3914 | * Configuration information, such as polygon color, dashes,
|
---|
| 3915 | * fillstyle, etc. get set for markerPtr; old resources get
|
---|
| 3916 | * freed, if there were any. The marker is eventually
|
---|
| 3917 | * redisplayed.
|
---|
| 3918 | *
|
---|
| 3919 | * ----------------------------------------------------------------------
|
---|
| 3920 | */
|
---|
| 3921 | /*ARGSUSED*/
|
---|
| 3922 | static int
|
---|
| 3923 | ConfigurePolygonMarker(markerPtr)
|
---|
| 3924 | Marker *markerPtr;
|
---|
| 3925 | {
|
---|
| 3926 | Graph *graphPtr = markerPtr->graphPtr;
|
---|
| 3927 | PolygonMarker *pmPtr = (PolygonMarker *)markerPtr;
|
---|
| 3928 | GC newGC;
|
---|
| 3929 | XGCValues gcValues;
|
---|
| 3930 | unsigned long gcMask;
|
---|
| 3931 | Drawable drawable;
|
---|
| 3932 |
|
---|
| 3933 | drawable = Tk_WindowId(graphPtr->tkwin);
|
---|
| 3934 | gcMask = (GCLineWidth | GCLineStyle);
|
---|
| 3935 | if (pmPtr->outline.fgColor != NULL) {
|
---|
| 3936 | gcMask |= GCForeground;
|
---|
| 3937 | gcValues.foreground = pmPtr->outline.fgColor->pixel;
|
---|
| 3938 | }
|
---|
| 3939 | if (pmPtr->outline.bgColor != NULL) {
|
---|
| 3940 | gcMask |= GCBackground;
|
---|
| 3941 | gcValues.background = pmPtr->outline.bgColor->pixel;
|
---|
| 3942 | }
|
---|
| 3943 | gcMask |= (GCCapStyle | GCJoinStyle);
|
---|
| 3944 | gcValues.cap_style = pmPtr->capStyle;
|
---|
| 3945 | gcValues.join_style = pmPtr->joinStyle;
|
---|
| 3946 | gcValues.line_style = LineSolid;
|
---|
| 3947 | gcValues.dash_offset = 0;
|
---|
| 3948 | gcValues.line_width = LineWidth(pmPtr->lineWidth);
|
---|
| 3949 | if (LineIsDashed(pmPtr->dashes)) {
|
---|
| 3950 | gcValues.line_style = (pmPtr->outline.bgColor == NULL)
|
---|
| 3951 | ? LineOnOffDash : LineDoubleDash;
|
---|
| 3952 | }
|
---|
| 3953 | if (pmPtr->xor) {
|
---|
| 3954 | unsigned long pixel;
|
---|
| 3955 | gcValues.function = GXxor;
|
---|
| 3956 |
|
---|
| 3957 | gcMask |= GCFunction;
|
---|
| 3958 | if (graphPtr->plotBg == NULL) {
|
---|
| 3959 | /* The graph's color option may not have been set yet */
|
---|
| 3960 | pixel = WhitePixelOfScreen(Tk_Screen(graphPtr->tkwin));
|
---|
| 3961 | } else {
|
---|
| 3962 | pixel = graphPtr->plotBg->pixel;
|
---|
| 3963 | }
|
---|
| 3964 | if (gcMask & GCBackground) {
|
---|
| 3965 | gcValues.background ^= pixel;
|
---|
| 3966 | }
|
---|
| 3967 | gcValues.foreground ^= pixel;
|
---|
| 3968 | if (drawable != None) {
|
---|
| 3969 | DrawPolygonMarker(markerPtr, drawable);
|
---|
| 3970 | }
|
---|
| 3971 | }
|
---|
| 3972 | newGC = Blt_GetPrivateGC(graphPtr->tkwin, gcMask, &gcValues);
|
---|
| 3973 | if (LineIsDashed(pmPtr->dashes)) {
|
---|
| 3974 | Blt_SetDashes(graphPtr->display, newGC, &pmPtr->dashes);
|
---|
| 3975 | }
|
---|
| 3976 | if (pmPtr->outlineGC != NULL) {
|
---|
| 3977 | Blt_FreePrivateGC(graphPtr->display, pmPtr->outlineGC);
|
---|
| 3978 | }
|
---|
| 3979 | pmPtr->outlineGC = newGC;
|
---|
| 3980 |
|
---|
| 3981 | gcMask = 0;
|
---|
| 3982 | if (pmPtr->fill.fgColor != NULL) {
|
---|
| 3983 | gcMask |= GCForeground;
|
---|
| 3984 | gcValues.foreground = pmPtr->fill.fgColor->pixel;
|
---|
| 3985 | }
|
---|
| 3986 | if (pmPtr->fill.bgColor != NULL) {
|
---|
| 3987 | gcMask |= GCBackground;
|
---|
| 3988 | gcValues.background = pmPtr->fill.bgColor->pixel;
|
---|
| 3989 | }
|
---|
| 3990 | if (pmPtr->stipple != None) {
|
---|
| 3991 | gcValues.stipple = pmPtr->stipple;
|
---|
| 3992 | gcValues.fill_style = (pmPtr->fill.bgColor != NULL)
|
---|
| 3993 | ? FillOpaqueStippled : FillStippled;
|
---|
| 3994 | gcMask |= (GCStipple | GCFillStyle);
|
---|
| 3995 | }
|
---|
| 3996 | newGC = Tk_GetGC(graphPtr->tkwin, gcMask, &gcValues);
|
---|
| 3997 | if (pmPtr->fillGC != NULL) {
|
---|
| 3998 | Tk_FreeGC(graphPtr->display, pmPtr->fillGC);
|
---|
| 3999 | }
|
---|
| 4000 | pmPtr->fillGC = newGC;
|
---|
| 4001 |
|
---|
| 4002 | if ((gcMask == 0) && !(graphPtr->flags & RESET_AXES) && (pmPtr->xor)) {
|
---|
| 4003 | if (drawable != None) {
|
---|
| 4004 | MapPolygonMarker(markerPtr);
|
---|
| 4005 | DrawPolygonMarker(markerPtr, drawable);
|
---|
| 4006 | }
|
---|
| 4007 | return TCL_OK;
|
---|
| 4008 | }
|
---|
| 4009 | pmPtr->flags |= MAP_ITEM;
|
---|
| 4010 | if (pmPtr->drawUnder) {
|
---|
| 4011 | graphPtr->flags |= REDRAW_BACKING_STORE;
|
---|
| 4012 | }
|
---|
| 4013 | Blt_EventuallyRedrawGraph(graphPtr);
|
---|
| 4014 | return TCL_OK;
|
---|
| 4015 | }
|
---|
| 4016 |
|
---|
| 4017 | /*
|
---|
| 4018 | * ----------------------------------------------------------------------
|
---|
| 4019 | *
|
---|
| 4020 | * FreePolygonMarker --
|
---|
| 4021 | *
|
---|
| 4022 | * Release memory and resources allocated for the polygon element.
|
---|
| 4023 | *
|
---|
| 4024 | * Results:
|
---|
| 4025 | * None.
|
---|
| 4026 | *
|
---|
| 4027 | * Side effects:
|
---|
| 4028 | * Everything associated with the polygon element is freed up.
|
---|
| 4029 | *
|
---|
| 4030 | * ----------------------------------------------------------------------
|
---|
| 4031 | */
|
---|
| 4032 | static void
|
---|
| 4033 | FreePolygonMarker(graphPtr, markerPtr)
|
---|
| 4034 | Graph *graphPtr;
|
---|
| 4035 | Marker *markerPtr;
|
---|
| 4036 | {
|
---|
| 4037 | PolygonMarker *pmPtr = (PolygonMarker *)markerPtr;
|
---|
| 4038 |
|
---|
| 4039 | if (pmPtr->fillGC != NULL) {
|
---|
| 4040 | Tk_FreeGC(graphPtr->display, pmPtr->fillGC);
|
---|
| 4041 | }
|
---|
| 4042 | if (pmPtr->outlineGC != NULL) {
|
---|
| 4043 | Blt_FreePrivateGC(graphPtr->display, pmPtr->outlineGC);
|
---|
| 4044 | }
|
---|
| 4045 | if (pmPtr->fillPts != NULL) {
|
---|
| 4046 | Blt_Free(pmPtr->fillPts);
|
---|
| 4047 | }
|
---|
| 4048 | if (pmPtr->outlinePts != NULL) {
|
---|
| 4049 | Blt_Free(pmPtr->outlinePts);
|
---|
| 4050 | }
|
---|
| 4051 | if (pmPtr->screenPts != NULL) {
|
---|
| 4052 | Blt_Free(pmPtr->screenPts);
|
---|
| 4053 | }
|
---|
| 4054 | Blt_FreeColorPair(&pmPtr->outline);
|
---|
| 4055 | Blt_FreeColorPair(&pmPtr->fill);
|
---|
| 4056 | }
|
---|
| 4057 |
|
---|
| 4058 | /*
|
---|
| 4059 | * ----------------------------------------------------------------------
|
---|
| 4060 | *
|
---|
| 4061 | * CreatePolygonMarker --
|
---|
| 4062 | *
|
---|
| 4063 | * Allocate memory and initialize methods for the new polygon
|
---|
| 4064 | * marker.
|
---|
| 4065 | *
|
---|
| 4066 | * Results:
|
---|
| 4067 | * The pointer to the newly allocated marker structure is
|
---|
| 4068 | * returned.
|
---|
| 4069 | *
|
---|
| 4070 | * Side effects:
|
---|
| 4071 | * Memory is allocated for the polygon marker structure.
|
---|
| 4072 | *
|
---|
| 4073 | * ----------------------------------------------------------------------
|
---|
| 4074 | */
|
---|
| 4075 | static Marker *
|
---|
| 4076 | CreatePolygonMarker()
|
---|
| 4077 | {
|
---|
| 4078 | PolygonMarker *pmPtr;
|
---|
| 4079 |
|
---|
| 4080 | pmPtr = Blt_Calloc(1, sizeof(PolygonMarker));
|
---|
| 4081 | if (pmPtr != NULL) {
|
---|
| 4082 | pmPtr->classPtr = &polygonMarkerClass;
|
---|
| 4083 | pmPtr->capStyle = CapButt;
|
---|
| 4084 | pmPtr->joinStyle = JoinMiter;
|
---|
| 4085 |
|
---|
| 4086 | }
|
---|
| 4087 | return (Marker *)pmPtr;
|
---|
| 4088 | }
|
---|
| 4089 |
|
---|
| 4090 | static int
|
---|
| 4091 | NameToMarker(graphPtr, name, markerPtrPtr)
|
---|
| 4092 | Graph *graphPtr;
|
---|
| 4093 | char *name;
|
---|
| 4094 | Marker **markerPtrPtr;
|
---|
| 4095 | {
|
---|
| 4096 | Blt_HashEntry *hPtr;
|
---|
| 4097 |
|
---|
| 4098 | hPtr = Blt_FindHashEntry(&graphPtr->markers.table, name);
|
---|
| 4099 | if (hPtr != NULL) {
|
---|
| 4100 | *markerPtrPtr = (Marker *)Blt_GetHashValue(hPtr);
|
---|
| 4101 | return TCL_OK;
|
---|
| 4102 | }
|
---|
| 4103 | Tcl_AppendResult(graphPtr->interp, "can't find marker \"", name,
|
---|
| 4104 | "\" in \"", Tk_PathName(graphPtr->tkwin), (char *)NULL);
|
---|
| 4105 | return TCL_ERROR;
|
---|
| 4106 | }
|
---|
| 4107 |
|
---|
| 4108 |
|
---|
| 4109 | static int
|
---|
| 4110 | RenameMarker(graphPtr, markerPtr, oldName, newName)
|
---|
| 4111 | Graph *graphPtr;
|
---|
| 4112 | Marker *markerPtr;
|
---|
| 4113 | char *oldName, *newName;
|
---|
| 4114 | {
|
---|
| 4115 | int isNew;
|
---|
| 4116 | Blt_HashEntry *hPtr;
|
---|
| 4117 |
|
---|
| 4118 | /* Rename the marker only if no marker already exists by that name */
|
---|
| 4119 | hPtr = Blt_CreateHashEntry(&graphPtr->markers.table, newName, &isNew);
|
---|
| 4120 | if (!isNew) {
|
---|
| 4121 | Tcl_AppendResult(graphPtr->interp, "can't rename marker: \"", newName,
|
---|
| 4122 | "\" already exists", (char *)NULL);
|
---|
| 4123 | return TCL_ERROR;
|
---|
| 4124 | }
|
---|
| 4125 | markerPtr->name = Blt_Strdup(newName);
|
---|
| 4126 | markerPtr->hashPtr = hPtr;
|
---|
| 4127 | Blt_SetHashValue(hPtr, (char *)markerPtr);
|
---|
| 4128 |
|
---|
| 4129 | /* Delete the old hash entry */
|
---|
| 4130 | hPtr = Blt_FindHashEntry(&graphPtr->markers.table, oldName);
|
---|
| 4131 | Blt_DeleteHashEntry(&graphPtr->markers.table, hPtr);
|
---|
| 4132 | if (oldName != NULL) {
|
---|
| 4133 | Blt_Free(oldName);
|
---|
| 4134 | }
|
---|
| 4135 | return TCL_OK;
|
---|
| 4136 | }
|
---|
| 4137 |
|
---|
| 4138 | /*
|
---|
| 4139 | * ----------------------------------------------------------------------
|
---|
| 4140 | *
|
---|
| 4141 | * NamesOp --
|
---|
| 4142 | *
|
---|
| 4143 | * Returns a list of marker identifiers in interp->result;
|
---|
| 4144 | *
|
---|
| 4145 | * Results:
|
---|
| 4146 | * The return value is a standard Tcl result.
|
---|
| 4147 | *
|
---|
| 4148 | * ----------------------------------------------------------------------
|
---|
| 4149 | */
|
---|
| 4150 | static int
|
---|
| 4151 | NamesOp(graphPtr, interp, argc, argv)
|
---|
| 4152 | Graph *graphPtr;
|
---|
| 4153 | Tcl_Interp *interp;
|
---|
| 4154 | int argc;
|
---|
| 4155 | char **argv;
|
---|
| 4156 | {
|
---|
| 4157 | Marker *markerPtr;
|
---|
| 4158 | Blt_ChainLink *linkPtr;
|
---|
| 4159 | register int i;
|
---|
| 4160 |
|
---|
| 4161 | Tcl_ResetResult(interp);
|
---|
| 4162 | for (linkPtr = Blt_ChainFirstLink(graphPtr->markers.displayList);
|
---|
| 4163 | linkPtr != NULL; linkPtr = Blt_ChainNextLink(linkPtr)) {
|
---|
| 4164 | markerPtr = Blt_ChainGetValue(linkPtr);
|
---|
| 4165 | if (argc == 3) {
|
---|
| 4166 | Tcl_AppendElement(interp, markerPtr->name);
|
---|
| 4167 | continue;
|
---|
| 4168 | }
|
---|
| 4169 | for (i = 3; i < argc; i++) {
|
---|
| 4170 | if (Tcl_StringMatch(markerPtr->name, argv[i])) {
|
---|
| 4171 | Tcl_AppendElement(interp, markerPtr->name);
|
---|
| 4172 | break;
|
---|
| 4173 | }
|
---|
| 4174 | }
|
---|
| 4175 | }
|
---|
| 4176 | return TCL_OK;
|
---|
| 4177 | }
|
---|
| 4178 |
|
---|
| 4179 | ClientData
|
---|
| 4180 | Blt_MakeMarkerTag(graphPtr, tagName)
|
---|
| 4181 | Graph *graphPtr;
|
---|
| 4182 | char *tagName;
|
---|
| 4183 | {
|
---|
| 4184 | Blt_HashEntry *hPtr;
|
---|
| 4185 | int isNew;
|
---|
| 4186 |
|
---|
| 4187 | hPtr = Blt_CreateHashEntry(&graphPtr->markers.tagTable, tagName, &isNew);
|
---|
| 4188 | assert(hPtr);
|
---|
| 4189 | return Blt_GetHashKey(&graphPtr->markers.tagTable, hPtr);
|
---|
| 4190 | }
|
---|
| 4191 |
|
---|
| 4192 | /*
|
---|
| 4193 | *----------------------------------------------------------------------
|
---|
| 4194 | *
|
---|
| 4195 | * BindOp --
|
---|
| 4196 | *
|
---|
| 4197 | * .g element bind elemName sequence command
|
---|
| 4198 | *
|
---|
| 4199 | *----------------------------------------------------------------------
|
---|
| 4200 | */
|
---|
| 4201 | /*ARGSUSED*/
|
---|
| 4202 | static int
|
---|
| 4203 | BindOp(graphPtr, interp, argc, argv)
|
---|
| 4204 | Graph *graphPtr;
|
---|
| 4205 | Tcl_Interp *interp;
|
---|
| 4206 | int argc;
|
---|
| 4207 | char **argv;
|
---|
| 4208 | {
|
---|
| 4209 | if (argc == 3) {
|
---|
| 4210 | Blt_HashEntry *hPtr;
|
---|
| 4211 | Blt_HashSearch cursor;
|
---|
| 4212 | char *tag;
|
---|
| 4213 |
|
---|
| 4214 | for (hPtr = Blt_FirstHashEntry(&graphPtr->markers.tagTable, &cursor);
|
---|
| 4215 | hPtr != NULL; hPtr = Blt_NextHashEntry(&cursor)) {
|
---|
| 4216 | tag = Blt_GetHashKey(&graphPtr->markers.tagTable, hPtr);
|
---|
| 4217 | Tcl_AppendElement(interp, tag);
|
---|
| 4218 | }
|
---|
| 4219 | return TCL_OK;
|
---|
| 4220 | }
|
---|
| 4221 | return Blt_ConfigureBindings(interp, graphPtr->bindTable,
|
---|
| 4222 | Blt_MakeMarkerTag(graphPtr, argv[3]), argc - 4, argv + 4);
|
---|
| 4223 | }
|
---|
| 4224 |
|
---|
| 4225 | /*
|
---|
| 4226 | * ----------------------------------------------------------------------
|
---|
| 4227 | *
|
---|
| 4228 | * CgetOp --
|
---|
| 4229 | *
|
---|
| 4230 | * ----------------------------------------------------------------------
|
---|
| 4231 | */
|
---|
| 4232 | /*ARGSUSED*/
|
---|
| 4233 | static int
|
---|
| 4234 | CgetOp(graphPtr, interp, argc, argv)
|
---|
| 4235 | Graph *graphPtr;
|
---|
| 4236 | Tcl_Interp *interp;
|
---|
| 4237 | int argc;
|
---|
| 4238 | char **argv;
|
---|
| 4239 | {
|
---|
| 4240 | Marker *markerPtr;
|
---|
| 4241 |
|
---|
| 4242 | if (NameToMarker(graphPtr, argv[3], &markerPtr) != TCL_OK) {
|
---|
| 4243 | return TCL_ERROR;
|
---|
| 4244 | }
|
---|
| 4245 | if (Tk_ConfigureValue(interp, graphPtr->tkwin,
|
---|
| 4246 | markerPtr->classPtr->configSpecs, (char *)markerPtr, argv[4], 0)
|
---|
| 4247 | != TCL_OK) {
|
---|
| 4248 | return TCL_ERROR;
|
---|
| 4249 | }
|
---|
| 4250 | return TCL_OK;
|
---|
| 4251 | }
|
---|
| 4252 |
|
---|
| 4253 | /*
|
---|
| 4254 | * ----------------------------------------------------------------------
|
---|
| 4255 | *
|
---|
| 4256 | * ConfigureOp --
|
---|
| 4257 | *
|
---|
| 4258 | * Results:
|
---|
| 4259 | * The return value is a standard Tcl result.
|
---|
| 4260 | *
|
---|
| 4261 | * Side Effects:
|
---|
| 4262 | *
|
---|
| 4263 | * ----------------------------------------------------------------------
|
---|
| 4264 | */
|
---|
| 4265 | static int
|
---|
| 4266 | ConfigureOp(graphPtr, interp, argc, argv)
|
---|
| 4267 | Graph *graphPtr;
|
---|
| 4268 | Tcl_Interp *interp;
|
---|
| 4269 | int argc;
|
---|
| 4270 | char **argv;
|
---|
| 4271 | {
|
---|
| 4272 | Marker *markerPtr;
|
---|
| 4273 | int flags = TK_CONFIG_ARGV_ONLY;
|
---|
| 4274 | char *oldName;
|
---|
| 4275 | int nNames, nOpts;
|
---|
| 4276 | char **options;
|
---|
| 4277 | register int i;
|
---|
| 4278 | int under;
|
---|
| 4279 |
|
---|
| 4280 | /* Figure out where the option value pairs begin */
|
---|
| 4281 | argc -= 3;
|
---|
| 4282 | argv += 3;
|
---|
| 4283 | for (i = 0; i < argc; i++) {
|
---|
| 4284 | if (argv[i][0] == '-') {
|
---|
| 4285 | break;
|
---|
| 4286 | }
|
---|
| 4287 | if (NameToMarker(graphPtr, argv[i], &markerPtr) != TCL_OK) {
|
---|
| 4288 | return TCL_ERROR;
|
---|
| 4289 | }
|
---|
| 4290 | }
|
---|
| 4291 | nNames = i; /* Number of element names specified */
|
---|
| 4292 | nOpts = argc - i; /* Number of options specified */
|
---|
| 4293 | options = argv + nNames; /* Start of options in argv */
|
---|
| 4294 |
|
---|
| 4295 | for (i = 0; i < nNames; i++) {
|
---|
| 4296 | NameToMarker(graphPtr, argv[i], &markerPtr);
|
---|
| 4297 | if (nOpts == 0) {
|
---|
| 4298 | return Tk_ConfigureInfo(interp, graphPtr->tkwin,
|
---|
| 4299 | markerPtr->classPtr->configSpecs, (char *)markerPtr,
|
---|
| 4300 | (char *)NULL, flags);
|
---|
| 4301 | } else if (nOpts == 1) {
|
---|
| 4302 | return Tk_ConfigureInfo(interp, graphPtr->tkwin,
|
---|
| 4303 | markerPtr->classPtr->configSpecs, (char *)markerPtr,
|
---|
| 4304 | options[0], flags);
|
---|
| 4305 | }
|
---|
| 4306 | /* Save the old marker. */
|
---|
| 4307 | oldName = markerPtr->name;
|
---|
| 4308 | under = markerPtr->drawUnder;
|
---|
| 4309 | if (Tk_ConfigureWidget(interp, graphPtr->tkwin,
|
---|
| 4310 | markerPtr->classPtr->configSpecs, nOpts, options,
|
---|
| 4311 | (char *)markerPtr, flags) != TCL_OK) {
|
---|
| 4312 | return TCL_ERROR;
|
---|
| 4313 | }
|
---|
| 4314 | if (oldName != markerPtr->name) {
|
---|
| 4315 | if (RenameMarker(graphPtr, markerPtr, oldName, markerPtr->name)
|
---|
| 4316 | != TCL_OK) {
|
---|
| 4317 | markerPtr->name = oldName;
|
---|
| 4318 | return TCL_ERROR;
|
---|
| 4319 | }
|
---|
| 4320 | }
|
---|
| 4321 | if ((*markerPtr->classPtr->configProc) (markerPtr) != TCL_OK) {
|
---|
| 4322 | return TCL_ERROR;
|
---|
| 4323 | }
|
---|
| 4324 | if (markerPtr->drawUnder != under) {
|
---|
| 4325 | graphPtr->flags |= REDRAW_BACKING_STORE;
|
---|
| 4326 | }
|
---|
| 4327 | }
|
---|
| 4328 | return TCL_OK;
|
---|
| 4329 | }
|
---|
| 4330 |
|
---|
| 4331 | /*
|
---|
| 4332 | * ----------------------------------------------------------------------
|
---|
| 4333 | *
|
---|
| 4334 | * CreateOp --
|
---|
| 4335 | *
|
---|
| 4336 | * This procedure creates and initializes a new marker.
|
---|
| 4337 | *
|
---|
| 4338 | * Results:
|
---|
| 4339 | * The return value is a pointer to a structure describing
|
---|
| 4340 | * the new element. If an error occurred, then the return
|
---|
| 4341 | * value is NULL and an error message is left in interp->result.
|
---|
| 4342 | *
|
---|
| 4343 | * Side effects:
|
---|
| 4344 | * Memory is allocated, etc.
|
---|
| 4345 | *
|
---|
| 4346 | * ----------------------------------------------------------------------
|
---|
| 4347 | */
|
---|
| 4348 | static int
|
---|
| 4349 | CreateOp(graphPtr, interp, argc, argv)
|
---|
| 4350 | Graph *graphPtr;
|
---|
| 4351 | Tcl_Interp *interp;
|
---|
| 4352 | int argc;
|
---|
| 4353 | char **argv;
|
---|
| 4354 | {
|
---|
| 4355 | Marker *markerPtr;
|
---|
| 4356 | Blt_HashEntry *hPtr;
|
---|
| 4357 | int isNew;
|
---|
| 4358 | Blt_Uid classUid;
|
---|
| 4359 | register int i;
|
---|
| 4360 | char *name;
|
---|
| 4361 | char string[200];
|
---|
| 4362 | unsigned int length;
|
---|
| 4363 | char c;
|
---|
| 4364 | register Tk_ConfigSpec *specPtr;
|
---|
| 4365 |
|
---|
| 4366 | c = argv[3][0];
|
---|
| 4367 | /* Create the new marker based upon the given type */
|
---|
| 4368 | if ((c == 't') && (strcmp(argv[3], "text") == 0)) {
|
---|
| 4369 | classUid = bltTextMarkerUid;
|
---|
| 4370 | } else if ((c == 'l') && (strcmp(argv[3], "line") == 0)) {
|
---|
| 4371 | classUid = bltLineMarkerUid;
|
---|
| 4372 | } else if ((c == 'p') && (strcmp(argv[3], "polygon") == 0)) {
|
---|
| 4373 | classUid = bltPolygonMarkerUid;
|
---|
| 4374 | } else if ((c == 'i') && (strcmp(argv[3], "image") == 0)) {
|
---|
| 4375 | classUid = bltImageMarkerUid;
|
---|
| 4376 | } else if ((c == 'b') && (strcmp(argv[3], "bitmap") == 0)) {
|
---|
| 4377 | classUid = bltBitmapMarkerUid;
|
---|
| 4378 | } else if ((c == 'w') && (strcmp(argv[3], "window") == 0)) {
|
---|
| 4379 | classUid = bltWindowMarkerUid;
|
---|
| 4380 | } else {
|
---|
| 4381 | Tcl_AppendResult(interp, "unknown marker type \"", argv[3],
|
---|
| 4382 | "\": should be \"text\", \"line\", \"polygon\", \"bitmap\", \"image\", or \
|
---|
| 4383 | \"window\"", (char *)NULL);
|
---|
| 4384 | return TCL_ERROR;
|
---|
| 4385 | }
|
---|
| 4386 | /* Scan for "-name" option. We need it for the component name */
|
---|
| 4387 | name = NULL;
|
---|
| 4388 | for (i = 4; i < argc; i += 2) {
|
---|
| 4389 | length = strlen(argv[i]);
|
---|
| 4390 | if ((length > 1) && (strncmp(argv[i], "-name", length) == 0)) {
|
---|
| 4391 | name = argv[i + 1];
|
---|
| 4392 | break;
|
---|
| 4393 | }
|
---|
| 4394 | }
|
---|
| 4395 | /* If no name was given for the marker, make up one. */
|
---|
| 4396 | if (name == NULL) {
|
---|
| 4397 | sprintf(string, "marker%d", graphPtr->nextMarkerId++);
|
---|
| 4398 | name = string;
|
---|
| 4399 | } else if (name[0] == '-') {
|
---|
| 4400 | Tcl_AppendResult(interp, "name of marker \"", name,
|
---|
| 4401 | "\" can't start with a '-'", (char *)NULL);
|
---|
| 4402 | return TCL_ERROR;
|
---|
| 4403 | }
|
---|
| 4404 | markerPtr = CreateMarker(graphPtr, name, classUid);
|
---|
| 4405 | if (Blt_ConfigureWidgetComponent(interp, graphPtr->tkwin, name,
|
---|
| 4406 | markerPtr->classUid, markerPtr->classPtr->configSpecs,
|
---|
| 4407 | argc - 4, argv + 4, (char *)markerPtr, 0) != TCL_OK) {
|
---|
| 4408 | DestroyMarker(markerPtr);
|
---|
| 4409 | return TCL_ERROR;
|
---|
| 4410 | }
|
---|
| 4411 |
|
---|
| 4412 | for (argc -= 4, argv += 4 ; argc > 0; argc -= 2, argv += 2)
|
---|
| 4413 | for (specPtr = markerPtr->classPtr->configSpecs; specPtr->type != TK_CONFIG_END; specPtr++)
|
---|
| 4414 | if ((Tcl_StringMatch(specPtr->argvName, *argv)))
|
---|
| 4415 | specPtr->specFlags |= TK_CONFIG_OPTION_SPECIFIED;
|
---|
| 4416 |
|
---|
| 4417 | if ((*markerPtr->classPtr->configProc) (markerPtr) != TCL_OK) {
|
---|
| 4418 | DestroyMarker(markerPtr);
|
---|
| 4419 | return TCL_ERROR;
|
---|
| 4420 | }
|
---|
| 4421 | hPtr = Blt_CreateHashEntry(&graphPtr->markers.table, name, &isNew);
|
---|
| 4422 | if (!isNew) {
|
---|
| 4423 | Marker *oldMarkerPtr;
|
---|
| 4424 | /*
|
---|
| 4425 | * Marker by the same name already exists. Delete the old
|
---|
| 4426 | * marker and it's list entry. But save the hash entry.
|
---|
| 4427 | */
|
---|
| 4428 | oldMarkerPtr = (Marker *)Blt_GetHashValue(hPtr);
|
---|
| 4429 | oldMarkerPtr->hashPtr = NULL;
|
---|
| 4430 | DestroyMarker(oldMarkerPtr);
|
---|
| 4431 | }
|
---|
| 4432 | Blt_SetHashValue(hPtr, markerPtr);
|
---|
| 4433 | markerPtr->hashPtr = hPtr;
|
---|
| 4434 | markerPtr->linkPtr =
|
---|
| 4435 | Blt_ChainAppend(graphPtr->markers.displayList, markerPtr);
|
---|
| 4436 | if (markerPtr->drawUnder) {
|
---|
| 4437 | graphPtr->flags |= REDRAW_BACKING_STORE;
|
---|
| 4438 | }
|
---|
| 4439 | Blt_EventuallyRedrawGraph(graphPtr);
|
---|
| 4440 | Tcl_SetResult(interp, name, TCL_VOLATILE);
|
---|
| 4441 | return TCL_OK;
|
---|
| 4442 | }
|
---|
| 4443 |
|
---|
| 4444 | /*
|
---|
| 4445 | * ----------------------------------------------------------------------
|
---|
| 4446 | *
|
---|
| 4447 | * DeleteOp --
|
---|
| 4448 | *
|
---|
| 4449 | * Deletes the marker given by markerId.
|
---|
| 4450 | *
|
---|
| 4451 | * Results:
|
---|
| 4452 | * The return value is a standard Tcl result.
|
---|
| 4453 | *
|
---|
| 4454 | * Side Effects:
|
---|
| 4455 | * Graph will be redrawn to reflect the new display list.
|
---|
| 4456 | *
|
---|
| 4457 | * ----------------------------------------------------------------------
|
---|
| 4458 | */
|
---|
| 4459 | /*ARGSUSED*/
|
---|
| 4460 | static int
|
---|
| 4461 | DeleteOp(graphPtr, interp, argc, argv)
|
---|
| 4462 | Graph *graphPtr;
|
---|
| 4463 | Tcl_Interp *interp; /* Not used. */
|
---|
| 4464 | int argc;
|
---|
| 4465 | char **argv;
|
---|
| 4466 | {
|
---|
| 4467 | Marker *markerPtr;
|
---|
| 4468 | register int i;
|
---|
| 4469 |
|
---|
| 4470 | for (i = 3; i < argc; i++) {
|
---|
| 4471 | if (NameToMarker(graphPtr, argv[i], &markerPtr) == TCL_OK) {
|
---|
| 4472 | DestroyMarker(markerPtr);
|
---|
| 4473 | }
|
---|
| 4474 | }
|
---|
| 4475 | Tcl_ResetResult(interp);
|
---|
| 4476 | Blt_EventuallyRedrawGraph(graphPtr);
|
---|
| 4477 | return TCL_OK;
|
---|
| 4478 | }
|
---|
| 4479 |
|
---|
| 4480 | /*
|
---|
| 4481 | *----------------------------------------------------------------------
|
---|
| 4482 | *
|
---|
| 4483 | * GetOp --
|
---|
| 4484 | *
|
---|
| 4485 | * Find the legend entry from the given argument. The argument
|
---|
| 4486 | * can be either a screen position "@x,y" or the name of an
|
---|
| 4487 | * element.
|
---|
| 4488 | *
|
---|
| 4489 | * I don't know how useful it is to test with the name of an
|
---|
| 4490 | * element.
|
---|
| 4491 | *
|
---|
| 4492 | * Results:
|
---|
| 4493 | * A standard Tcl result.
|
---|
| 4494 | *
|
---|
| 4495 | * Side Effects:
|
---|
| 4496 | * Graph will be redrawn to reflect the new legend attributes.
|
---|
| 4497 | *
|
---|
| 4498 | *----------------------------------------------------------------------
|
---|
| 4499 | */
|
---|
| 4500 | /*ARGSUSED*/
|
---|
| 4501 | static int
|
---|
| 4502 | GetOp(graphPtr, interp, argc, argv)
|
---|
| 4503 | Graph *graphPtr;
|
---|
| 4504 | Tcl_Interp *interp;
|
---|
| 4505 | int argc; /* Not used. */
|
---|
| 4506 | char *argv[];
|
---|
| 4507 | {
|
---|
| 4508 | register Marker *markerPtr;
|
---|
| 4509 |
|
---|
| 4510 | if ((argv[3][0] == 'c') && (strcmp(argv[3], "current") == 0)) {
|
---|
| 4511 | markerPtr = (Marker *)Blt_GetCurrentItem(graphPtr->bindTable);
|
---|
| 4512 | /* Report only on markers. */
|
---|
| 4513 | if (markerPtr == NULL) {
|
---|
| 4514 | return TCL_OK;
|
---|
| 4515 | }
|
---|
| 4516 | if ((markerPtr->classUid == bltBitmapMarkerUid) ||
|
---|
| 4517 | (markerPtr->classUid == bltLineMarkerUid) ||
|
---|
| 4518 | (markerPtr->classUid == bltWindowMarkerUid) ||
|
---|
| 4519 | (markerPtr->classUid == bltPolygonMarkerUid) ||
|
---|
| 4520 | (markerPtr->classUid == bltTextMarkerUid) ||
|
---|
| 4521 | (markerPtr->classUid == bltImageMarkerUid)) {
|
---|
| 4522 | Tcl_SetResult(interp, markerPtr->name, TCL_VOLATILE);
|
---|
| 4523 | }
|
---|
| 4524 | }
|
---|
| 4525 | return TCL_OK;
|
---|
| 4526 | }
|
---|
| 4527 |
|
---|
| 4528 | /*
|
---|
| 4529 | * ----------------------------------------------------------------------
|
---|
| 4530 | *
|
---|
| 4531 | * RelinkOp --
|
---|
| 4532 | *
|
---|
| 4533 | * Reorders the marker (given by the first name) before/after
|
---|
| 4534 | * the another marker (given by the second name) in the
|
---|
| 4535 | * marker display list. If no second name is given, the
|
---|
| 4536 | * marker is placed at the beginning/end of the list.
|
---|
| 4537 | *
|
---|
| 4538 | * Results:
|
---|
| 4539 | * A standard Tcl result.
|
---|
| 4540 | *
|
---|
| 4541 | * Side Effects:
|
---|
| 4542 | * Graph will be redrawn to reflect the new display list.
|
---|
| 4543 | *
|
---|
| 4544 | * ----------------------------------------------------------------------
|
---|
| 4545 | */
|
---|
| 4546 | /*ARGSUSED*/
|
---|
| 4547 | static int
|
---|
| 4548 | RelinkOp(graphPtr, interp, argc, argv)
|
---|
| 4549 | Graph *graphPtr;
|
---|
| 4550 | Tcl_Interp *interp; /* Not used. */
|
---|
| 4551 | int argc;
|
---|
| 4552 | char **argv;
|
---|
| 4553 | {
|
---|
| 4554 | Blt_ChainLink *linkPtr, *placePtr;
|
---|
| 4555 | Marker *markerPtr;
|
---|
| 4556 |
|
---|
| 4557 | /* Find the marker to be raised or lowered. */
|
---|
| 4558 | if (NameToMarker(graphPtr, argv[3], &markerPtr) != TCL_OK) {
|
---|
| 4559 | return TCL_ERROR;
|
---|
| 4560 | }
|
---|
| 4561 | /* Right now it's assumed that all markers are always in the
|
---|
| 4562 | display list. */
|
---|
| 4563 | linkPtr = markerPtr->linkPtr;
|
---|
| 4564 | Blt_ChainUnlinkLink(graphPtr->markers.displayList, markerPtr->linkPtr);
|
---|
| 4565 |
|
---|
| 4566 | placePtr = NULL;
|
---|
| 4567 | if (argc == 5) {
|
---|
| 4568 | if (NameToMarker(graphPtr, argv[4], &markerPtr) != TCL_OK) {
|
---|
| 4569 | return TCL_ERROR;
|
---|
| 4570 | }
|
---|
| 4571 | placePtr = markerPtr->linkPtr;
|
---|
| 4572 | }
|
---|
| 4573 |
|
---|
| 4574 | /* Link the marker at its new position. */
|
---|
| 4575 | if (argv[2][0] == 'a') {
|
---|
| 4576 | Blt_ChainLinkAfter(graphPtr->markers.displayList, linkPtr, placePtr);
|
---|
| 4577 | } else {
|
---|
| 4578 | Blt_ChainLinkBefore(graphPtr->markers.displayList, linkPtr, placePtr);
|
---|
| 4579 | }
|
---|
| 4580 | if (markerPtr->drawUnder) {
|
---|
| 4581 | graphPtr->flags |= REDRAW_BACKING_STORE;
|
---|
| 4582 | }
|
---|
| 4583 | Blt_EventuallyRedrawGraph(graphPtr);
|
---|
| 4584 | return TCL_OK;
|
---|
| 4585 | }
|
---|
| 4586 |
|
---|
| 4587 |
|
---|
| 4588 | /*
|
---|
| 4589 | * ----------------------------------------------------------------------
|
---|
| 4590 | *
|
---|
| 4591 | * FindOp --
|
---|
| 4592 | *
|
---|
| 4593 | * Returns if marker by a given ID currently exists.
|
---|
| 4594 | *
|
---|
| 4595 | * Results:
|
---|
| 4596 | * A standard Tcl result.
|
---|
| 4597 | *
|
---|
| 4598 | * ----------------------------------------------------------------------
|
---|
| 4599 | */
|
---|
| 4600 | /*ARGSUSED*/
|
---|
| 4601 | static int
|
---|
| 4602 | FindOp(graphPtr, interp, argc, argv)
|
---|
| 4603 | Graph *graphPtr;
|
---|
| 4604 | Tcl_Interp *interp;
|
---|
| 4605 | int argc;
|
---|
| 4606 | char **argv;
|
---|
| 4607 | {
|
---|
| 4608 | Blt_ChainLink *linkPtr;
|
---|
| 4609 | Extents2D exts;
|
---|
| 4610 | Marker *markerPtr;
|
---|
| 4611 | int mode;
|
---|
| 4612 | int left, right, top, bottom;
|
---|
| 4613 | int enclosed;
|
---|
| 4614 |
|
---|
| 4615 | #define FIND_ENCLOSED (1<<0)
|
---|
| 4616 | #define FIND_OVERLAPPING (1<<1)
|
---|
| 4617 | if (strcmp(argv[3], "enclosed") == 0) {
|
---|
| 4618 | mode = FIND_ENCLOSED;
|
---|
| 4619 | } else if (strcmp(argv[3], "overlapping") == 0) {
|
---|
| 4620 | mode = FIND_OVERLAPPING;
|
---|
| 4621 | } else {
|
---|
| 4622 | Tcl_AppendResult(interp, "bad search type \"", argv[3],
|
---|
| 4623 | ": should be \"enclosed\", or \"overlapping\"", (char *)NULL);
|
---|
| 4624 | return TCL_ERROR;
|
---|
| 4625 | }
|
---|
| 4626 |
|
---|
| 4627 | if ((Tcl_GetInt(interp, argv[4], &left) != TCL_OK) ||
|
---|
| 4628 | (Tcl_GetInt(interp, argv[5], &top) != TCL_OK) ||
|
---|
| 4629 | (Tcl_GetInt(interp, argv[6], &right) != TCL_OK) ||
|
---|
| 4630 | (Tcl_GetInt(interp, argv[7], &bottom) != TCL_OK)) {
|
---|
| 4631 | return TCL_ERROR;
|
---|
| 4632 | }
|
---|
| 4633 | if (left < right) {
|
---|
| 4634 | exts.left = (double)left;
|
---|
| 4635 | exts.right = (double)right;
|
---|
| 4636 | } else {
|
---|
| 4637 | exts.left = (double)right;
|
---|
| 4638 | exts.right = (double)left;
|
---|
| 4639 | }
|
---|
| 4640 | if (top < bottom) {
|
---|
| 4641 | exts.top = (double)top;
|
---|
| 4642 | exts.bottom = (double)bottom;
|
---|
| 4643 | } else {
|
---|
| 4644 | exts.top = (double)bottom;
|
---|
| 4645 | exts.bottom = (double)top;
|
---|
| 4646 | }
|
---|
| 4647 | enclosed = (mode == FIND_ENCLOSED);
|
---|
| 4648 | for (linkPtr = Blt_ChainFirstLink(graphPtr->markers.displayList);
|
---|
| 4649 | linkPtr != NULL; linkPtr = Blt_ChainNextLink(linkPtr)) {
|
---|
| 4650 | markerPtr = Blt_ChainGetValue(linkPtr);
|
---|
| 4651 | if (markerPtr->hidden) {
|
---|
| 4652 | continue;
|
---|
| 4653 | }
|
---|
| 4654 | if (markerPtr->elemName != NULL) {
|
---|
| 4655 | Blt_HashEntry *hPtr;
|
---|
| 4656 |
|
---|
| 4657 | hPtr = Blt_FindHashEntry(&graphPtr->elements.table,
|
---|
| 4658 | markerPtr->elemName);
|
---|
| 4659 | if (hPtr != NULL) {
|
---|
| 4660 | Element *elemPtr;
|
---|
| 4661 |
|
---|
| 4662 | elemPtr = (Element *)Blt_GetHashValue(hPtr);
|
---|
| 4663 | if (elemPtr->hidden) {
|
---|
| 4664 | continue;
|
---|
| 4665 | }
|
---|
| 4666 | }
|
---|
| 4667 | }
|
---|
| 4668 | if ((*markerPtr->classPtr->regionProc)(markerPtr, &exts, enclosed)) {
|
---|
| 4669 | Tcl_SetResult(interp, markerPtr->name, TCL_VOLATILE);
|
---|
| 4670 | return TCL_OK;
|
---|
| 4671 | }
|
---|
| 4672 | }
|
---|
| 4673 | Tcl_SetResult(interp, "", TCL_VOLATILE);
|
---|
| 4674 | return TCL_OK;
|
---|
| 4675 | }
|
---|
| 4676 |
|
---|
| 4677 | /*
|
---|
| 4678 | * ----------------------------------------------------------------------
|
---|
| 4679 | *
|
---|
| 4680 | * ExistsOp --
|
---|
| 4681 | *
|
---|
| 4682 | * Returns if marker by a given ID currently exists.
|
---|
| 4683 | *
|
---|
| 4684 | * Results:
|
---|
| 4685 | * A standard Tcl result.
|
---|
| 4686 | *
|
---|
| 4687 | * ----------------------------------------------------------------------
|
---|
| 4688 | */
|
---|
| 4689 | /*ARGSUSED*/
|
---|
| 4690 | static int
|
---|
| 4691 | ExistsOp(graphPtr, interp, argc, argv)
|
---|
| 4692 | Graph *graphPtr;
|
---|
| 4693 | Tcl_Interp *interp;
|
---|
| 4694 | int argc;
|
---|
| 4695 | char **argv;
|
---|
| 4696 | {
|
---|
| 4697 | Blt_HashEntry *hPtr;
|
---|
| 4698 |
|
---|
| 4699 | hPtr = Blt_FindHashEntry(&graphPtr->markers.table, argv[3]);
|
---|
| 4700 | Blt_SetBooleanResult(interp, (hPtr != NULL));
|
---|
| 4701 | return TCL_OK;
|
---|
| 4702 | }
|
---|
| 4703 |
|
---|
| 4704 | /*
|
---|
| 4705 | * ----------------------------------------------------------------------
|
---|
| 4706 | *
|
---|
| 4707 | * TypeOp --
|
---|
| 4708 | *
|
---|
| 4709 | * Returns a symbolic name for the type of the marker whose ID is
|
---|
| 4710 | * given.
|
---|
| 4711 | *
|
---|
| 4712 | * Results:
|
---|
| 4713 | * A standard Tcl result. interp->result will contain the symbolic
|
---|
| 4714 | * type of the marker.
|
---|
| 4715 | *
|
---|
| 4716 | * ----------------------------------------------------------------------
|
---|
| 4717 | */
|
---|
| 4718 | /*ARGSUSED*/
|
---|
| 4719 | static int
|
---|
| 4720 | TypeOp(graphPtr, interp, argc, argv)
|
---|
| 4721 | Graph *graphPtr;
|
---|
| 4722 | Tcl_Interp *interp;
|
---|
| 4723 | int argc;
|
---|
| 4724 | char **argv;
|
---|
| 4725 | {
|
---|
| 4726 | Marker *markerPtr;
|
---|
| 4727 |
|
---|
| 4728 | if (NameToMarker(graphPtr, argv[3], &markerPtr) != TCL_OK) {
|
---|
| 4729 | return TCL_ERROR;
|
---|
| 4730 | }
|
---|
| 4731 | Tcl_SetResult(interp, markerPtr->classUid, TCL_STATIC);
|
---|
| 4732 | return TCL_OK;
|
---|
| 4733 | }
|
---|
| 4734 |
|
---|
| 4735 | /* Public routines */
|
---|
| 4736 |
|
---|
| 4737 | /*
|
---|
| 4738 | * ----------------------------------------------------------------------
|
---|
| 4739 | *
|
---|
| 4740 | * Blt_MarkerOp --
|
---|
| 4741 | *
|
---|
| 4742 | * This procedure is invoked to process the Tcl command
|
---|
| 4743 | * that corresponds to a widget managed by this module.
|
---|
| 4744 | * See the user documentation for details on what it does.
|
---|
| 4745 | *
|
---|
| 4746 | * Results:
|
---|
| 4747 | * A standard Tcl result.
|
---|
| 4748 | *
|
---|
| 4749 | * Side effects:
|
---|
| 4750 | * See the user documentation.
|
---|
| 4751 | *
|
---|
| 4752 | * ----------------------------------------------------------------------
|
---|
| 4753 | */
|
---|
| 4754 |
|
---|
| 4755 | static Blt_OpSpec markerOps[] =
|
---|
| 4756 | {
|
---|
| 4757 | {"after", 1, (Blt_Op)RelinkOp, 4, 5, "marker ?afterMarker?",},
|
---|
| 4758 | {"before", 2, (Blt_Op)RelinkOp, 4, 5, "marker ?beforeMarker?",},
|
---|
| 4759 | {"bind", 2, (Blt_Op)BindOp, 3, 6, "marker sequence command",},
|
---|
| 4760 | {"cget", 2, (Blt_Op)CgetOp, 5, 5, "marker option",},
|
---|
| 4761 | {"configure", 2, (Blt_Op)ConfigureOp, 4, 0,
|
---|
| 4762 | "marker ?marker?... ?option value?...",},
|
---|
| 4763 | {"create", 2, (Blt_Op)CreateOp, 4, 0,
|
---|
| 4764 | "type ?option value?...",},
|
---|
| 4765 | {"delete", 1, (Blt_Op)DeleteOp, 3, 0, "?marker?...",},
|
---|
| 4766 | {"exists", 1, (Blt_Op)ExistsOp, 4, 4, "marker",},
|
---|
| 4767 | {"find", 1, (Blt_Op)FindOp, 8, 8, "enclosed|overlapping x1 y1 x2 y2",},
|
---|
| 4768 | {"get", 1, (Blt_Op)GetOp, 4, 4, "name",},
|
---|
| 4769 | {"names", 1, (Blt_Op)NamesOp, 3, 0, "?pattern?...",},
|
---|
| 4770 | {"type", 1, (Blt_Op)TypeOp, 4, 4, "marker",},
|
---|
| 4771 | };
|
---|
| 4772 | static int nMarkerOps = sizeof(markerOps) / sizeof(Blt_OpSpec);
|
---|
| 4773 |
|
---|
| 4774 | /*ARGSUSED*/
|
---|
| 4775 | int
|
---|
| 4776 | Blt_MarkerOp(graphPtr, interp, argc, argv)
|
---|
| 4777 | Graph *graphPtr;
|
---|
| 4778 | Tcl_Interp *interp; /* Not used. */
|
---|
| 4779 | int argc;
|
---|
| 4780 | char **argv;
|
---|
| 4781 | {
|
---|
| 4782 | Blt_Op proc;
|
---|
| 4783 | int result;
|
---|
| 4784 |
|
---|
| 4785 | proc = Blt_GetOp(interp, nMarkerOps, markerOps, BLT_OP_ARG2, argc, argv,0);
|
---|
| 4786 | if (proc == NULL) {
|
---|
| 4787 | return TCL_ERROR;
|
---|
| 4788 | }
|
---|
| 4789 | result = (*proc) (graphPtr, interp, argc, argv);
|
---|
| 4790 | return result;
|
---|
| 4791 | }
|
---|
| 4792 |
|
---|
| 4793 | /*
|
---|
| 4794 | * -------------------------------------------------------------------------
|
---|
| 4795 | *
|
---|
| 4796 | * Blt_MarkersToPostScript --
|
---|
| 4797 | *
|
---|
| 4798 | * -------------------------------------------------------------------------
|
---|
| 4799 | */
|
---|
| 4800 | void
|
---|
| 4801 | Blt_MarkersToPostScript(graphPtr, psToken, under)
|
---|
| 4802 | Graph *graphPtr;
|
---|
| 4803 | PsToken psToken;
|
---|
| 4804 | int under;
|
---|
| 4805 | {
|
---|
| 4806 | Blt_ChainLink *linkPtr;
|
---|
| 4807 | register Marker *markerPtr;
|
---|
| 4808 |
|
---|
| 4809 | for (linkPtr = Blt_ChainFirstLink(graphPtr->markers.displayList);
|
---|
| 4810 | linkPtr != NULL; linkPtr = Blt_ChainNextLink(linkPtr)) {
|
---|
| 4811 | markerPtr = Blt_ChainGetValue(linkPtr);
|
---|
| 4812 | if ((markerPtr->classPtr->postscriptProc == NULL) ||
|
---|
| 4813 | (markerPtr->nWorldPts == 0)) {
|
---|
| 4814 | continue;
|
---|
| 4815 | }
|
---|
| 4816 | if (markerPtr->drawUnder != under) {
|
---|
| 4817 | continue;
|
---|
| 4818 | }
|
---|
| 4819 | if (markerPtr->hidden) {
|
---|
| 4820 | continue;
|
---|
| 4821 | }
|
---|
| 4822 | if (markerPtr->elemName != NULL) {
|
---|
| 4823 | Blt_HashEntry *hPtr;
|
---|
| 4824 |
|
---|
| 4825 | hPtr = Blt_FindHashEntry(&graphPtr->elements.table,
|
---|
| 4826 | markerPtr->elemName);
|
---|
| 4827 | if (hPtr != NULL) {
|
---|
| 4828 | Element *elemPtr;
|
---|
| 4829 |
|
---|
| 4830 | elemPtr = (Element *)Blt_GetHashValue(hPtr);
|
---|
| 4831 | if (elemPtr->hidden) {
|
---|
| 4832 | continue;
|
---|
| 4833 | }
|
---|
| 4834 | }
|
---|
| 4835 | }
|
---|
| 4836 | Blt_AppendToPostScript(psToken, "\n% Marker \"", markerPtr->name,
|
---|
| 4837 | "\" is a ", markerPtr->classUid, " marker\n", (char *)NULL);
|
---|
| 4838 | (*markerPtr->classPtr->postscriptProc) (markerPtr, psToken);
|
---|
| 4839 | }
|
---|
| 4840 | }
|
---|
| 4841 |
|
---|
| 4842 | /*
|
---|
| 4843 | * -------------------------------------------------------------------------
|
---|
| 4844 | *
|
---|
| 4845 | * Blt_DrawMarkers --
|
---|
| 4846 | *
|
---|
| 4847 | * Calls the individual drawing routines (based on marker type)
|
---|
| 4848 | * for each marker in the display list.
|
---|
| 4849 | *
|
---|
| 4850 | * A marker will not be drawn if
|
---|
| 4851 | *
|
---|
| 4852 | * 1) An element linked to the marker (indicated by elemName)
|
---|
| 4853 | * is currently hidden.
|
---|
| 4854 | *
|
---|
| 4855 | * 2) No coordinates have been specified for the marker.
|
---|
| 4856 | *
|
---|
| 4857 | * 3) The marker is requesting to be drawn at a different level
|
---|
| 4858 | * (above/below the elements) from the current mode.
|
---|
| 4859 | *
|
---|
| 4860 | * 4) The marker is configured as hidden (-hide option).
|
---|
| 4861 | *
|
---|
| 4862 | * 5) The marker isn't visible in the current viewport
|
---|
| 4863 | * (i.e. clipped).
|
---|
| 4864 | *
|
---|
| 4865 | * Results:
|
---|
| 4866 | * None
|
---|
| 4867 | *
|
---|
| 4868 | * Side Effects:
|
---|
| 4869 | * Markers are drawn into the drawable (pixmap) which will eventually
|
---|
| 4870 | * be displayed in the graph window.
|
---|
| 4871 | *
|
---|
| 4872 | * -------------------------------------------------------------------------
|
---|
| 4873 | */
|
---|
| 4874 | void
|
---|
| 4875 | Blt_DrawMarkers(graphPtr, drawable, under)
|
---|
| 4876 | Graph *graphPtr;
|
---|
| 4877 | Drawable drawable; /* Pixmap or window to draw into */
|
---|
| 4878 | int under;
|
---|
| 4879 | {
|
---|
| 4880 | Blt_ChainLink *linkPtr;
|
---|
| 4881 | Marker *markerPtr;
|
---|
| 4882 |
|
---|
| 4883 | for (linkPtr = Blt_ChainFirstLink(graphPtr->markers.displayList);
|
---|
| 4884 | linkPtr != NULL; linkPtr = Blt_ChainNextLink(linkPtr)) {
|
---|
| 4885 | markerPtr = Blt_ChainGetValue(linkPtr);
|
---|
| 4886 |
|
---|
| 4887 | if ((markerPtr->nWorldPts == 0) ||
|
---|
| 4888 | (markerPtr->drawUnder != under) ||
|
---|
| 4889 | (markerPtr->hidden) ||
|
---|
| 4890 | (markerPtr->clipped)) {
|
---|
| 4891 | continue;
|
---|
| 4892 | }
|
---|
| 4893 | if (markerPtr->elemName != NULL) {
|
---|
| 4894 | Blt_HashEntry *hPtr;
|
---|
| 4895 |
|
---|
| 4896 | /* Look up the named element and see if it's hidden */
|
---|
| 4897 | hPtr = Blt_FindHashEntry(&graphPtr->elements.table,
|
---|
| 4898 | markerPtr->elemName);
|
---|
| 4899 | if (hPtr != NULL) {
|
---|
| 4900 | Element *elemPtr;
|
---|
| 4901 |
|
---|
| 4902 | elemPtr = (Element *)Blt_GetHashValue(hPtr);
|
---|
| 4903 | if (elemPtr->hidden) {
|
---|
| 4904 | continue;
|
---|
| 4905 | }
|
---|
| 4906 | }
|
---|
| 4907 | }
|
---|
| 4908 |
|
---|
| 4909 | (*markerPtr->classPtr->drawProc) (markerPtr, drawable);
|
---|
| 4910 | }
|
---|
| 4911 | }
|
---|
| 4912 |
|
---|
| 4913 | void
|
---|
| 4914 | Blt_MapMarkers(graphPtr)
|
---|
| 4915 | Graph *graphPtr;
|
---|
| 4916 | {
|
---|
| 4917 | Blt_ChainLink *linkPtr;
|
---|
| 4918 | Marker *markerPtr;
|
---|
| 4919 |
|
---|
| 4920 | for (linkPtr = Blt_ChainFirstLink(graphPtr->markers.displayList);
|
---|
| 4921 | linkPtr != NULL; linkPtr = Blt_ChainNextLink(linkPtr)) {
|
---|
| 4922 | markerPtr = Blt_ChainGetValue(linkPtr);
|
---|
| 4923 | if ((markerPtr->nWorldPts == 0) || (markerPtr->hidden)) {
|
---|
| 4924 | continue;
|
---|
| 4925 | }
|
---|
| 4926 | if ((graphPtr->flags & MAP_ALL) || (markerPtr->flags & MAP_ITEM)) {
|
---|
| 4927 | (*markerPtr->classPtr->mapProc) (markerPtr);
|
---|
| 4928 | markerPtr->flags &= ~MAP_ITEM;
|
---|
| 4929 | }
|
---|
| 4930 | }
|
---|
| 4931 | }
|
---|
| 4932 |
|
---|
| 4933 |
|
---|
| 4934 | void
|
---|
| 4935 | Blt_DestroyMarkers(graphPtr)
|
---|
| 4936 | Graph *graphPtr;
|
---|
| 4937 | {
|
---|
| 4938 | Blt_HashEntry *hPtr;
|
---|
| 4939 | Blt_HashSearch cursor;
|
---|
| 4940 | Marker *markerPtr;
|
---|
| 4941 |
|
---|
| 4942 | for (hPtr = Blt_FirstHashEntry(&graphPtr->markers.table, &cursor);
|
---|
| 4943 | hPtr != NULL; hPtr = Blt_NextHashEntry(&cursor)) {
|
---|
| 4944 | markerPtr = (Marker *)Blt_GetHashValue(hPtr);
|
---|
| 4945 | /*
|
---|
| 4946 | * Dereferencing the pointer to the hash table prevents the
|
---|
| 4947 | * hash table entry from being automatically deleted.
|
---|
| 4948 | */
|
---|
| 4949 | markerPtr->hashPtr = NULL;
|
---|
| 4950 | DestroyMarker(markerPtr);
|
---|
| 4951 | }
|
---|
| 4952 | Blt_DeleteHashTable(&graphPtr->markers.table);
|
---|
| 4953 | Blt_DeleteHashTable(&graphPtr->markers.tagTable);
|
---|
| 4954 | Blt_ChainDestroy(graphPtr->markers.displayList);
|
---|
| 4955 | }
|
---|
| 4956 |
|
---|
| 4957 | Marker *
|
---|
| 4958 | Blt_NearestMarker(graphPtr, x, y, under)
|
---|
| 4959 | Graph *graphPtr;
|
---|
| 4960 | int x, y; /* Screen coordinates */
|
---|
| 4961 | int under;
|
---|
| 4962 | {
|
---|
| 4963 | Blt_ChainLink *linkPtr;
|
---|
| 4964 | Marker *markerPtr;
|
---|
| 4965 | Point2D point;
|
---|
| 4966 |
|
---|
| 4967 | point.x = (double)x;
|
---|
| 4968 | point.y = (double)y;
|
---|
| 4969 | for (linkPtr = Blt_ChainLastLink(graphPtr->markers.displayList);
|
---|
| 4970 | linkPtr != NULL; linkPtr = Blt_ChainPrevLink(linkPtr)) {
|
---|
| 4971 | markerPtr = Blt_ChainGetValue(linkPtr);
|
---|
| 4972 | /*
|
---|
| 4973 | * Don't consider markers that are pending to be mapped. Even
|
---|
| 4974 | * if the marker has already been mapped, the coordinates
|
---|
| 4975 | * could be invalid now. Better to pick no marker than the
|
---|
| 4976 | * wrong marker.
|
---|
| 4977 | */
|
---|
| 4978 | if ((markerPtr->drawUnder == under) && (markerPtr->nWorldPts > 0) &&
|
---|
| 4979 | ((markerPtr->flags & MAP_ITEM) == 0) &&
|
---|
| 4980 | (!markerPtr->hidden) && (markerPtr->state == STATE_NORMAL)) {
|
---|
| 4981 | if ((*markerPtr->classPtr->pointProc) (markerPtr, &point)) {
|
---|
| 4982 | return markerPtr;
|
---|
| 4983 | }
|
---|
| 4984 | }
|
---|
| 4985 | }
|
---|
| 4986 | return NULL;
|
---|
| 4987 | }
|
---|