| 1 |
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| 2 | proc Blt_ActiveLegend { graph } {
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| 3 | $graph legend bind all <Enter> [list blt::ActivateLegend $graph ]
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| 4 | $graph legend bind all <Leave> [list blt::DeactivateLegend $graph]
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| 5 | $graph legend bind all <ButtonPress-1> [list blt::HighlightLegend $graph]
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| 6 | }
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| 7 |
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| 8 | proc Blt_Crosshairs { graph } {
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| 9 | blt::Crosshairs $graph
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| 10 | }
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| 11 |
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| 12 | proc Blt_ResetCrosshairs { graph state } {
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| 13 | blt::Crosshairs $graph "Any-Motion" $state
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| 14 | }
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| 15 |
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| 16 | proc Blt_ZoomStack { graph } {
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| 17 | blt::ZoomStack $graph
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| 18 | }
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| 19 |
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| 20 | proc Blt_PrintKey { graph } {
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| 21 | blt::PrintKey $graph
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| 22 | }
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| 23 |
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| 24 | proc Blt_ClosestPoint { graph } {
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| 25 | blt::ClosestPoint $graph
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| 26 | }
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| 27 |
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| 28 | #
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| 29 | # The following procedures that reside in the "blt" namespace are
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| 30 | # supposed to be private.
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| 31 | #
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| 32 |
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| 33 | proc blt::ActivateLegend { graph } {
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| 34 | set elem [$graph legend get current]
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| 35 | $graph legend activate $elem
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| 36 | }
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| 37 | proc blt::DeactivateLegend { graph } {
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| 38 | set elem [$graph legend get current]
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| 39 | $graph legend deactivate $elem
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| 40 | }
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| 41 |
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| 42 | proc blt::HighlightLegend { graph } {
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| 43 | set elem [$graph legend get current]
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| 44 | set relief [$graph element cget $elem -labelrelief]
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| 45 | if { $relief == "flat" } {
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| 46 | $graph element configure $elem -labelrelief raised
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| 47 | $graph element activate $elem
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| 48 | } else {
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| 49 | $graph element configure $elem -labelrelief flat
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| 50 | $graph element deactivate $elem
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| 51 | }
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| 52 | }
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| 53 |
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| 54 | proc blt::Crosshairs { graph {event "Any-Motion"} {state "on"}} {
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| 55 | $graph crosshairs $state
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| 56 | bind crosshairs-$graph <$event> {
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| 57 | %W crosshairs configure -position @%x,%y
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| 58 | }
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| 59 | bind crosshairs-$graph <Leave> {
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| 60 | %W crosshairs off
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| 61 | }
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| 62 | bind crosshairs-$graph <Enter> {
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| 63 | %W crosshairs on
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| 64 | }
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| 65 | $graph crosshairs configure -color red
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| 66 | if { $state == "on" } {
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| 67 | blt::AddBindTag $graph crosshairs-$graph
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| 68 | } elseif { $state == "off" } {
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| 69 | blt::RemoveBindTag $graph crosshairs-$graph
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| 70 | }
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| 71 | }
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| 72 |
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| 73 | proc blt::InitStack { graph } {
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| 74 | global zoomInfo
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| 75 | set zoomInfo($graph,interval) 100
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| 76 | set zoomInfo($graph,afterId) 0
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| 77 | set zoomInfo($graph,A,x) {}
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| 78 | set zoomInfo($graph,A,y) {}
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| 79 | set zoomInfo($graph,B,x) {}
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| 80 | set zoomInfo($graph,B,y) {}
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| 81 | set zoomInfo($graph,stack) {}
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| 82 | set zoomInfo($graph,corner) A
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| 83 | }
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| 84 |
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| 85 | proc blt::ZoomStack { graph {start "ButtonPress-1"} {reset "ButtonPress-3"} } {
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| 86 | global zoomInfo zoomMod
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| 87 |
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| 88 | blt::InitStack $graph
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| 89 |
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| 90 | if { [info exists zoomMod] } {
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| 91 | set modifier $zoomMod
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| 92 | } else {
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| 93 | set modifier ""
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| 94 | }
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| 95 | bind zoom-$graph <${modifier}${start}> { blt::SetZoomPoint %W %x %y }
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| 96 | bind zoom-$graph <${modifier}${reset}> {
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| 97 | if { [%W inside %x %y] } {
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| 98 | blt::ResetZoom %W
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| 99 | }
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| 100 | }
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| 101 | blt::AddBindTag $graph zoom-$graph
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| 102 | }
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| 103 |
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| 104 | proc blt::PrintKey { graph {event "Shift-ButtonRelease-3"} } {
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| 105 | bind print-$graph <$event> { Blt_PostScriptDialog %W }
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| 106 | blt::AddBindTag $graph print-$graph
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| 107 | }
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| 108 |
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| 109 | proc blt::ClosestPoint { graph {event "Control-ButtonPress-2"} } {
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| 110 | bind closest-point-$graph <$event> {
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| 111 | blt::FindElement %W %x %y
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| 112 | }
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| 113 | blt::AddBindTag $graph closest-point-$graph
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| 114 | }
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| 115 |
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| 116 | proc blt::AddBindTag { widget tag } {
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| 117 | set oldTagList [bindtags $widget]
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| 118 | if { [lsearch $oldTagList $tag] < 0 } {
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| 119 | bindtags $widget [linsert $oldTagList 0 $tag]
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| 120 | }
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| 121 | }
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| 122 |
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| 123 | proc blt::RemoveBindTag { widget tag } {
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| 124 | set oldTagList [bindtags $widget]
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| 125 | set index [lsearch $oldTagList $tag]
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| 126 | if { $index >= 0 } {
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| 127 | bindtags $widget [lreplace $oldTagList $index $index]
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| 128 | }
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| 129 | }
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| 130 |
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| 131 | proc blt::FindElement { graph x y } {
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| 132 | if ![$graph element closest $x $y info -interpolate yes] {
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| 133 | beep
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| 134 | return
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| 135 | }
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| 136 | # --------------------------------------------------------------
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| 137 | # find(name) - element Id
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| 138 | # find(index) - index of closest point
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| 139 | # find(x) find(y) - coordinates of closest point
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| 140 | # or closest point on line segment.
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| 141 | # find(dist) - distance from sample coordinate
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| 142 | # --------------------------------------------------------------
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| 143 | set markerName "bltClosest_$info(name)"
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| 144 | catch { $graph marker delete $markerName }
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| 145 | $graph marker create text -coords { $info(x) $info(y) } \
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| 146 | -name $markerName \
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| 147 | -text "$info(name): $info(dist)\nindex $info(index)" \
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| 148 | -font *lucida*-r-*-10-* \
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| 149 | -anchor center -justify left \
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| 150 | -yoffset 0 -bg {}
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| 151 |
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| 152 | set coords [$graph invtransform $x $y]
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| 153 | set nx [lindex $coords 0]
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| 154 | set ny [lindex $coords 1]
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| 155 |
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| 156 | $graph marker create line -coords "$nx $ny $info(x) $info(y)" \
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| 157 | -name line.$markerName
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| 158 |
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| 159 | blt::FlashPoint $graph $info(name) $info(index) 10
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| 160 | blt::FlashPoint $graph $info(name) [expr $info(index) + 1] 10
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| 161 | }
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| 162 |
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| 163 | proc blt::FlashPoint { graph name index count } {
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| 164 | if { $count & 1 } {
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| 165 | $graph element deactivate $name
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| 166 | } else {
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| 167 | $graph element activate $name $index
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| 168 | }
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| 169 | incr count -1
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| 170 | if { $count > 0 } {
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| 171 | after 200 blt::FlashPoint $graph $name $index $count
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| 172 | update
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| 173 | } else {
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| 174 | eval $graph marker delete [$graph marker names "bltClosest_*"]
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| 175 | }
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| 176 | }
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| 177 |
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| 178 | proc blt::GetCoords { graph x y index } {
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| 179 | global zoomInfo
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| 180 | if { [$graph cget -invertxy] } {
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| 181 | set zoomInfo($graph,$index,x) $y
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| 182 | set zoomInfo($graph,$index,y) $x
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| 183 | } else {
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| 184 | set zoomInfo($graph,$index,x) $x
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| 185 | set zoomInfo($graph,$index,y) $y
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| 186 | }
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| 187 | }
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| 188 |
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| 189 | proc blt::MarkPoint { graph index } {
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| 190 | global zoomInfo
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| 191 | set x [$graph xaxis invtransform $zoomInfo($graph,$index,x)]
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| 192 | set y [$graph yaxis invtransform $zoomInfo($graph,$index,y)]
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| 193 | set marker "zoomText_$index"
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| 194 | set text [format "x=%.4g\ny=%.4g" $x $y]
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| 195 |
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| 196 | if [$graph marker exists $marker] {
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| 197 | $graph marker configure $marker -coords { $x $y } -text $text
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| 198 | } else {
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| 199 | $graph marker create text -coords { $x $y } -name $marker \
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| 200 | -font *lucida*-r-*-10-* \
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| 201 | -text $text -anchor center -bg {} -justify left
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| 202 | }
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| 203 | }
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| 204 |
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| 205 | proc blt::DestroyZoomTitle { graph } {
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| 206 | global zoomInfo
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| 207 |
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| 208 | if { $zoomInfo($graph,corner) == "A" } {
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| 209 | catch { $graph marker delete "zoomTitle" }
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| 210 | }
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| 211 | }
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| 212 |
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| 213 | proc blt::PopZoom { graph } {
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| 214 | global zoomInfo
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| 215 |
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| 216 | set zoomStack $zoomInfo($graph,stack)
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| 217 | if { [llength $zoomStack] > 0 } {
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| 218 | set cmd [lindex $zoomStack 0]
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| 219 | set zoomInfo($graph,stack) [lrange $zoomStack 1 end]
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| 220 | eval $cmd
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| 221 | blt::ZoomTitleLast $graph
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| 222 | busy hold $graph
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| 223 | update
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| 224 | busy release $graph
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| 225 | after 2000 "blt::DestroyZoomTitle $graph"
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| 226 | } else {
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| 227 | catch { $graph marker delete "zoomTitle" }
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| 228 | }
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| 229 | }
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| 230 |
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| 231 | # Push the old axis limits on the stack and set the new ones
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| 232 |
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| 233 | proc blt::PushZoom { graph } {
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| 234 | global zoomInfo
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| 235 | eval $graph marker delete [$graph marker names "zoom*"]
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| 236 | if { [info exists zoomInfo($graph,afterId)] } {
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| 237 | after cancel $zoomInfo($graph,afterId)
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| 238 | }
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| 239 | set x1 $zoomInfo($graph,A,x)
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| 240 | set y1 $zoomInfo($graph,A,y)
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| 241 | set x2 $zoomInfo($graph,B,x)
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| 242 | set y2 $zoomInfo($graph,B,y)
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| 243 |
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| 244 | if { ($x1 == $x2) || ($y1 == $y2) } {
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| 245 | # No delta, revert to start
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| 246 | return
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| 247 | }
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| 248 | set cmd {}
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| 249 | foreach margin { xaxis yaxis x2axis y2axis } {
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| 250 | foreach axis [$graph $margin use] {
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| 251 | set min [$graph axis cget $axis -min]
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| 252 | set max [$graph axis cget $axis -max]
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| 253 | set c [list $graph axis configure $axis -min $min -max $max]
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| 254 | append cmd "$c\n"
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| 255 | }
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| 256 | }
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| 257 | set zoomInfo($graph,stack) [linsert $zoomInfo($graph,stack) 0 $cmd]
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| 258 |
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| 259 |
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| 260 | foreach margin { xaxis x2axis } {
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| 261 | foreach axis [$graph $margin use] {
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| 262 | set min [$graph axis invtransform $axis $x1]
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| 263 | set max [$graph axis invtransform $axis $x2]
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| 264 | if { $min > $max } {
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| 265 | $graph axis configure $axis -min $max -max $min
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| 266 | } else {
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| 267 | $graph axis configure $axis -min $min -max $max
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| 268 | }
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| 269 | }
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| 270 | }
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| 271 | foreach margin { yaxis y2axis } {
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| 272 | foreach axis [$graph $margin use] {
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| 273 | set min [$graph axis invtransform $axis $y1]
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| 274 | set max [$graph axis invtransform $axis $y2]
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| 275 | if { $min > $max } {
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| 276 | $graph axis configure $axis -min $max -max $min
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| 277 | } else {
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| 278 | $graph axis configure $axis -min $min -max $max
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| 279 | }
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| 280 | }
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| 281 | }
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| 282 | busy hold $graph
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| 283 | update; # This "update" redraws the graph
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| 284 | busy release $graph
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| 285 | }
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| 286 |
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| 287 | #
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| 288 | # This routine terminates either an existing zoom, or pops back to
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| 289 | # the previous zoom level (if no zoom is in progress).
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| 290 | #
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| 291 |
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| 292 | proc blt::ResetZoom { graph } {
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| 293 | global zoomInfo
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| 294 |
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| 295 | if { ![info exists zoomInfo($graph,corner)] } {
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| 296 | blt::InitStack $graph
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| 297 | }
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| 298 | eval $graph marker delete [$graph marker names "zoom*"]
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| 299 |
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| 300 | if { $zoomInfo($graph,corner) == "A" } {
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| 301 | # Reset the whole axis
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| 302 | blt::PopZoom $graph
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| 303 | } else {
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| 304 | global zoomMod
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| 305 |
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| 306 | if { [info exists zoomMod] } {
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| 307 | set modifier $zoomMod
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| 308 | } else {
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| 309 | set modifier "Any-"
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| 310 | }
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| 311 | set zoomInfo($graph,corner) A
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| 312 | blt::RemoveBindTag $graph select-region-$graph
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| 313 | }
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| 314 | }
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| 315 |
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| 316 | option add *zoomTitle.font -*-helvetica-medium-R-*-*-18-*-*-*-*-*-*-*
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| 317 | option add *zoomTitle.shadow yellow4
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| 318 | option add *zoomTitle.foreground yellow1
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| 319 | option add *zoomTitle.coords "-Inf Inf"
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| 320 |
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| 321 | proc blt::ZoomTitleNext { graph } {
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| 322 | global zoomInfo
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| 323 | set level [expr [llength $zoomInfo($graph,stack)] + 1]
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| 324 | if { [$graph cget -invertxy] } {
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| 325 | set coords "-Inf -Inf"
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| 326 | } else {
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| 327 | set coords "-Inf Inf"
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| 328 | }
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| 329 | $graph marker create text -name "zoomTitle" -text "Zoom #$level" \
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| 330 | -coords $coords -bindtags "" -anchor nw
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| 331 | }
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| 332 |
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| 333 | proc blt::ZoomTitleLast { graph } {
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| 334 | global zoomInfo
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| 335 |
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| 336 | set level [llength $zoomInfo($graph,stack)]
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| 337 | if { $level > 0 } {
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| 338 | $graph marker create text -name "zoomTitle" -anchor nw \
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| 339 | -text "Zoom #$level"
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| 340 | }
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| 341 | }
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| 342 |
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| 343 |
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| 344 | proc blt::SetZoomPoint { graph x y } {
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| 345 | global zoomInfo zoomMod
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| 346 | if { ![info exists zoomInfo($graph,corner)] } {
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| 347 | blt::InitStack $graph
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| 348 | }
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| 349 | blt::GetCoords $graph $x $y $zoomInfo($graph,corner)
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| 350 | if { [info exists zoomMod] } {
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| 351 | set modifier $zoomMod
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| 352 | } else {
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| 353 | set modifier "Any-"
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| 354 | }
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| 355 | bind select-region-$graph <${modifier}Motion> {
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| 356 | blt::GetCoords %W %x %y B
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| 357 | #blt::MarkPoint $graph B
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| 358 | blt::Box %W
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| 359 | }
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| 360 | if { $zoomInfo($graph,corner) == "A" } {
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| 361 | if { ![$graph inside $x $y] } {
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| 362 | return
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| 363 | }
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| 364 | # First corner selected, start watching motion events
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| 365 |
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| 366 | #blt::MarkPoint $graph A
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| 367 | blt::ZoomTitleNext $graph
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| 368 |
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| 369 | blt::AddBindTag $graph select-region-$graph
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| 370 | set zoomInfo($graph,corner) B
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| 371 | } else {
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| 372 | # Delete the modal binding
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| 373 | blt::RemoveBindTag $graph select-region-$graph
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| 374 | blt::PushZoom $graph
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| 375 | set zoomInfo($graph,corner) A
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| 376 | }
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| 377 | }
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| 378 |
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| 379 | option add *zoomOutline.dashes 4
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| 380 | option add *zoomTitle.anchor nw
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| 381 | option add *zoomOutline.lineWidth 2
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| 382 | option add *zoomOutline.xor yes
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| 383 |
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| 384 | proc blt::MarchingAnts { graph offset } {
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| 385 | global zoomInfo
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| 386 |
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| 387 | incr offset
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| 388 | if { [$graph marker exists zoomOutline] } {
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| 389 | $graph marker configure zoomOutline -dashoffset $offset
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| 390 | set interval $zoomInfo($graph,interval)
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| 391 | set id [after $interval [list blt::MarchingAnts $graph $offset]]
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| 392 | set zoomInfo($graph,afterId) $id
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| 393 | }
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| 394 | }
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| 395 |
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| 396 | proc blt::Box { graph } {
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| 397 | global zoomInfo
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| 398 |
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| 399 | if { $zoomInfo($graph,A,x) > $zoomInfo($graph,B,x) } {
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| 400 | set x1 [$graph xaxis invtransform $zoomInfo($graph,B,x)]
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| 401 | set y1 [$graph yaxis invtransform $zoomInfo($graph,B,y)]
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| 402 | set x2 [$graph xaxis invtransform $zoomInfo($graph,A,x)]
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| 403 | set y2 [$graph yaxis invtransform $zoomInfo($graph,A,y)]
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| 404 | } else {
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| 405 | set x1 [$graph xaxis invtransform $zoomInfo($graph,A,x)]
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| 406 | set y1 [$graph yaxis invtransform $zoomInfo($graph,A,y)]
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| 407 | set x2 [$graph xaxis invtransform $zoomInfo($graph,B,x)]
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| 408 | set y2 [$graph yaxis invtransform $zoomInfo($graph,B,y)]
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| 409 | }
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| 410 | set coords { $x1 $y1 $x2 $y1 $x2 $y2 $x1 $y2 $x1 $y1 }
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| 411 | if { [$graph marker exists "zoomOutline"] } {
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| 412 | $graph marker configure "zoomOutline" -coords $coords
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| 413 | } else {
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| 414 | set X [lindex [$graph xaxis use] 0]
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| 415 | set Y [lindex [$graph yaxis use] 0]
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| 416 | $graph marker create line -coords $coords -name "zoomOutline" \
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| 417 | -mapx $X -mapy $Y
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| 418 | set interval $zoomInfo($graph,interval)
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| 419 | set id [after $interval [list blt::MarchingAnts $graph 0]]
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| 420 | set zoomInfo($graph,afterId) $id
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| 421 | }
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| 422 | }
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| 423 |
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| 424 |
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| 425 | proc Blt_PostScriptDialog { graph } {
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| 426 | set top $graph.top
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| 427 | toplevel $top
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| 428 |
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| 429 | foreach var { center landscape maxpect preview decorations padx
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| 430 | pady paperwidth paperheight width height colormode } {
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| 431 | global $graph.$var
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| 432 | set $graph.$var [$graph postscript cget -$var]
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| 433 | }
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| 434 | set row 1
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| 435 | set col 0
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| 436 | label $top.title -text "PostScript Options"
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| 437 | table $top $top.title -cspan 7
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| 438 | foreach bool { center landscape maxpect preview decorations } {
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| 439 | set w $top.$bool-label
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| 440 | label $w -text "-$bool" -font *courier*-r-*12*
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| 441 | table $top $row,$col $w -anchor e -pady { 2 0 } -padx { 0 4 }
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| 442 | set w $top.$bool-yes
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| 443 | global $graph.$bool
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| 444 | radiobutton $w -text "yes" -variable $graph.$bool -value 1
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| 445 | table $top $row,$col+1 $w -anchor w
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| 446 | set w $top.$bool-no
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| 447 | radiobutton $w -text "no" -variable $graph.$bool -value 0
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| 448 | table $top $row,$col+2 $w -anchor w
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| 449 | incr row
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| 450 | }
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| 451 | label $top.modes -text "-colormode" -font *courier*-r-*12*
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| 452 | table $top $row,0 $top.modes -anchor e -pady { 2 0 } -padx { 0 4 }
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| 453 | set col 1
|
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| 454 | foreach m { color greyscale } {
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| 455 | set w $top.$m
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| 456 | radiobutton $w -text $m -variable $graph.colormode -value $m
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| 457 | table $top $row,$col $w -anchor w
|
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| 458 | incr col
|
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| 459 | }
|
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| 460 | set row 1
|
|---|
| 461 | frame $top.sep -width 2 -bd 1 -relief sunken
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| 462 | table $top $row,3 $top.sep -fill y -rspan 6
|
|---|
| 463 | set col 4
|
|---|
| 464 | foreach value { padx pady paperwidth paperheight width height } {
|
|---|
| 465 | set w $top.$value-label
|
|---|
| 466 | label $w -text "-$value" -font *courier*-r-*12*
|
|---|
| 467 | table $top $row,$col $w -anchor e -pady { 2 0 } -padx { 0 4 }
|
|---|
| 468 | set w $top.$value-entry
|
|---|
| 469 | global $graph.$value
|
|---|
| 470 | entry $w -textvariable $graph.$value -width 8
|
|---|
| 471 | table $top $row,$col+1 $w -cspan 2 -anchor w -padx 8
|
|---|
| 472 | incr row
|
|---|
| 473 | }
|
|---|
| 474 | table configure $top c3 -width .125i
|
|---|
| 475 | button $top.cancel -text "Cancel" -command "destroy $top"
|
|---|
| 476 | table $top $row,0 $top.cancel -width 1i -pady 2 -cspan 3
|
|---|
| 477 | button $top.reset -text "Reset" -command "destroy $top"
|
|---|
| 478 | #table $top $row,1 $top.reset -width 1i
|
|---|
| 479 | button $top.print -text "Print" -command "blt::ResetPostScript $graph"
|
|---|
| 480 | table $top $row,4 $top.print -width 1i -pady 2 -cspan 2
|
|---|
| 481 | }
|
|---|
| 482 |
|
|---|
| 483 | proc blt::ResetPostScript { graph } {
|
|---|
| 484 | foreach var { center landscape maxpect preview decorations padx
|
|---|
| 485 | pady paperwidth paperheight width height colormode } {
|
|---|
| 486 | global $graph.$var
|
|---|
| 487 | set old [$graph postscript cget -$var]
|
|---|
| 488 | if { [catch {$graph postscript configure -$var [set $graph.$var]}] != 0 } {
|
|---|
| 489 | $graph postscript configure -$var $old
|
|---|
| 490 | set $graph.$var $old
|
|---|
| 491 | }
|
|---|
| 492 | }
|
|---|
| 493 | $graph postscript output "out.ps"
|
|---|
| 494 | puts stdout "wrote file \"out.ps\"."
|
|---|
| 495 | flush stdout
|
|---|
| 496 | }
|
|---|
