| 1 | /*
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| 2 | * bltBind.h --
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| 3 | *
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| 4 | * Copyright 1993-1998 Lucent Technologies, Inc.
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| 5 | *
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| 6 | * Permission to use, copy, modify, and distribute this software and
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| 7 | * its documentation for any purpose and without fee is hereby
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| 8 | * granted, provided that the above copyright notice appear in all
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| 9 | * copies and that both that the copyright notice and warranty
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| 10 | * disclaimer appear in supporting documentation, and that the names
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| 11 | * of Lucent Technologies any of their entities not be used in
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| 12 | * advertising or publicity pertaining to distribution of the software
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| 13 | * without specific, written prior permission.
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| 14 | *
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| 15 | * Lucent Technologies disclaims all warranties with regard to this
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| 16 | * software, including all implied warranties of merchantability and
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| 17 | * fitness. In no event shall Lucent Technologies be liable for any
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| 18 | * special, indirect or consequential damages or any damages
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| 19 | * whatsoever resulting from loss of use, data or profits, whether in
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| 20 | * an action of contract, negligence or other tortuous action, arising
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| 21 | * out of or in connection with the use or performance of this
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| 22 | * software.
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| 23 | */
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| 24 |
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| 25 | #ifndef _BLT_BIND_H
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| 26 | #define _BLT_BIND_H
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| 27 |
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| 28 | #include "bltList.h"
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| 29 |
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| 30 | typedef struct Blt_BindTableStruct *Blt_BindTable;
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| 31 |
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| 32 | typedef ClientData (Blt_BindPickProc) _ANSI_ARGS_((ClientData clientData,
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| 33 | int x, int y, ClientData *contextPtr));
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| 34 |
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| 35 | typedef void (Blt_BindTagProc) _ANSI_ARGS_((Blt_BindTable bindTable,
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| 36 | ClientData object, ClientData context, Blt_List list));
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| 37 |
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| 38 |
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| 39 | /*
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| 40 | * Binding structure information:
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| 41 | */
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| 42 |
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| 43 | struct Blt_BindTableStruct {
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| 44 | unsigned int flags;
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| 45 | Tk_BindingTable bindingTable;
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| 46 | /* Table of all bindings currently defined.
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| 47 | * NULL means that no bindings exist, so the
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| 48 | * table hasn't been created. Each "object"
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| 49 | * used for this table is either a Tk_Uid for
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| 50 | * a tag or the address of an item named by
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| 51 | * id. */
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| 52 |
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| 53 | ClientData currentItem; /* The item currently containing the mouse
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| 54 | * pointer, or NULL if none. */
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| 55 | ClientData currentContext; /* One word indicating what kind of object
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| 56 | * was picked. */
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| 57 |
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| 58 | ClientData newItem; /* The item that is about to become the
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| 59 | * current one, or NULL. This field is
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| 60 | * used to detect deletions of the new
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| 61 | * current item pointer that occur during
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| 62 | * Leave processing of the previous current
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| 63 | * tab. */
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| 64 | ClientData newContext; /* One-word indicating what kind of object
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| 65 | * was just picked. */
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| 66 |
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| 67 | ClientData focusItem;
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| 68 | ClientData focusContext;
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| 69 |
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| 70 | XEvent pickEvent; /* The event upon which the current choice
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| 71 | * of the current tab is based. Must be saved
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| 72 | * so that if the current item is deleted,
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| 73 | * we can pick another. */
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| 74 | int activePick; /* The pick event has been initialized so
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| 75 | * that we can repick it */
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| 76 |
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| 77 | int state; /* Last known modifier state. Used to
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| 78 | * defer picking a new current object
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| 79 | * while buttons are down. */
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| 80 |
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| 81 | ClientData clientData;
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| 82 | Tk_Window tkwin;
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| 83 | Blt_BindPickProc *pickProc; /* Routine to report the item the mouse is
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| 84 | * currently over. */
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| 85 | Blt_BindTagProc *tagProc; /* Routine to report tags picked items. */
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| 86 | };
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| 87 |
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| 88 | EXTERN void Blt_DestroyBindingTable _ANSI_ARGS_((Blt_BindTable table));
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| 89 |
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| 90 | EXTERN Blt_BindTable Blt_CreateBindingTable _ANSI_ARGS_((Tcl_Interp *interp,
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| 91 | Tk_Window tkwin, ClientData clientData, Blt_BindPickProc *pickProc,
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| 92 | Blt_BindTagProc *tagProc));
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| 93 |
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| 94 | EXTERN int Blt_ConfigureBindings _ANSI_ARGS_((Tcl_Interp *interp,
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| 95 | Blt_BindTable table, ClientData item, int argc, char **argv));
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| 96 |
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| 97 | #if (TCL_MAJOR_VERSION >= 8)
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| 98 | EXTERN int Blt_ConfigureBindingsFromObj _ANSI_ARGS_((Tcl_Interp *interp,
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| 99 | Blt_BindTable table, ClientData item, int objc, Tcl_Obj *CONST *objv));
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| 100 | #endif
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| 101 |
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| 102 | EXTERN void Blt_PickCurrentItem _ANSI_ARGS_((Blt_BindTable table));
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| 103 |
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| 104 | EXTERN void Blt_DeleteBindings _ANSI_ARGS_((Blt_BindTable table,
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| 105 | ClientData object));
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| 106 |
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| 107 | EXTERN void Blt_MoveBindingTable _ANSI_ARGS_((Blt_BindTable table,
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| 108 | Tk_Window tkwin));
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| 109 |
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| 110 | #define Blt_SetFocusItem(bindPtr, object, context) \
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| 111 | ((bindPtr)->focusItem = (ClientData)(object),\
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| 112 | (bindPtr)->focusContext = (ClientData)(context))
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| 113 |
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| 114 | #define Blt_SetCurrentItem(bindPtr, object, context) \
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| 115 | ((bindPtr)->currentItem = (ClientData)(object),\
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| 116 | (bindPtr)->currentContext = (ClientData)(context))
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| 117 |
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| 118 | #define Blt_GetCurrentItem(bindPtr) ((bindPtr)->currentItem)
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| 119 | #define Blt_GetCurrentContext(bindPtr) ((bindPtr)->currentContext)
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| 120 | #define Blt_GetLatestItem(bindPtr) ((bindPtr)->newItem)
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| 121 |
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| 122 | #define Blt_GetBindingData(bindPtr) ((bindPtr)->clientData)
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| 123 |
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| 124 | #endif /*_BLT_BIND_H*/
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