487 lines
14 KiB
Tcl
487 lines
14 KiB
Tcl
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proc Blt_ActiveLegend { graph } {
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$graph legend bind all <Enter> [list blt::ActivateLegend $graph ]
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$graph legend bind all <Leave> [list blt::DeactivateLegend $graph]
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$graph legend bind all <ButtonPress-1> [list blt::HighlightLegend $graph]
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}
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proc Blt_Crosshairs { graph } {
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blt::Crosshairs $graph
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}
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proc Blt_ZoomStack { graph } {
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blt::ZoomStack $graph
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}
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proc Blt_PrintKey { graph } {
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blt::PrintKey $graph
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}
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proc Blt_ClosestPoint { graph } {
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blt::ClosestPoint $graph
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}
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#
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# The following procedures that reside in the "blt" namespace are
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# supposed to be private.
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#
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proc blt::ActivateLegend { graph } {
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set elem [$graph legend get current]
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$graph legend activate $elem
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}
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proc blt::DeactivateLegend { graph } {
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set elem [$graph legend get current]
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$graph legend deactivate $elem
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}
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proc blt::HighlightLegend { graph } {
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set elem [$graph legend get current]
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set relief [$graph element cget $elem -labelrelief]
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if { $relief == "flat" } {
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$graph element configure $elem -labelrelief raised
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$graph element activate $elem
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} else {
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$graph element configure $elem -labelrelief flat
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$graph element deactivate $elem
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}
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}
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proc blt::Crosshairs { graph { event "Any-Motion" } } {
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$graph crosshairs on
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bind bltCrosshairs <$event> {
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%W crosshairs configure -position @%x,%y
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}
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$graph crosshairs configure -color red
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blt::AddBindTag $graph bltCrosshairs
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}
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proc blt::InitStack { graph } {
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global zoomInfo
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set zoomInfo($graph,interval) 100
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set zoomInfo($graph,afterId) 0
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set zoomInfo($graph,A,x) {}
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set zoomInfo($graph,A,y) {}
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set zoomInfo($graph,B,x) {}
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set zoomInfo($graph,B,y) {}
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set zoomInfo($graph,stack) {}
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set zoomInfo($graph,corner) A
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}
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proc blt::ZoomStack { graph {start "ButtonPress-1"} {reset "ButtonPress-3"} } {
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global zoomInfo zoomMod
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blt::InitStack $graph
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if { [info exists zoomMod] } {
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set modifier $zoomMod
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} else {
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set modifier ""
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}
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bind bltZoomGraph <${modifier}${start}> { blt::SetZoomPoint %W %x %y }
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bind bltZoomGraph <${modifier}${reset}> {
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if { [%W inside %x %y] } {
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blt::ResetZoom %W
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}
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}
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blt::AddBindTag $graph bltZoomGraph
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}
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proc blt::PrintKey { graph {event "Shift-ButtonRelease-3"} } {
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bind bltPrintGraph <$event> { Blt_PostScriptDialog %W }
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blt::AddBindTag $graph bltPrintGraph
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}
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proc blt::ClosestPoint { graph {event "Control-ButtonPress-2"} } {
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bind bltClosestPoint <$event> {
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blt::FindElement %W %x %y
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}
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blt::AddBindTag $graph bltClosestPoint
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}
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proc blt::AddBindTag { graph name } {
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set oldtags [bindtags $graph]
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if { [lsearch $oldtags $name] < 0 } {
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bindtags $graph [concat $name $oldtags]
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}
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}
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proc blt::FindElement { graph x y } {
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if ![$graph element closest $x $y info -interpolate yes] {
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beep
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return
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}
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# --------------------------------------------------------------
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# find(name) - element Id
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# find(index) - index of closest point
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# find(x) find(y) - coordinates of closest point
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# or closest point on line segment.
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# find(dist) - distance from sample coordinate
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# --------------------------------------------------------------
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set markerName "bltClosest_$info(name)"
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catch { $graph marker delete $markerName }
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$graph marker create text -coords { $info(x) $info(y) } \
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-name $markerName \
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-text "$info(name): $info(dist)\nindex $info(index)" \
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-font *lucida*-r-*-10-* \
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-anchor center -justify left \
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-yoffset 0 -bg {}
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set coords [$graph invtransform $x $y]
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set nx [lindex $coords 0]
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set ny [lindex $coords 1]
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$graph marker create line -coords "$nx $ny $info(x) $info(y)" \
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-name line.$markerName
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blt::FlashPoint $graph $info(name) $info(index) 10
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blt::FlashPoint $graph $info(name) [expr $info(index) + 1] 10
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}
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proc blt::FlashPoint { graph name index count } {
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if { $count & 1 } {
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$graph element deactivate $name
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} else {
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$graph element activate $name $index
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}
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incr count -1
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if { $count > 0 } {
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after 200 blt::FlashPoint $graph $name $index $count
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update
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} else {
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eval $graph marker delete [$graph marker names "bltClosest_*"]
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}
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}
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proc blt::GetCoords { graph x y index } {
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global zoomInfo
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if { [$graph cget -invertxy] } {
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set zoomInfo($graph,$index,x) $y
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set zoomInfo($graph,$index,y) $x
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} else {
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set zoomInfo($graph,$index,x) $x
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set zoomInfo($graph,$index,y) $y
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}
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}
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proc blt::MarkPoint { graph index } {
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global zoomInfo
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set x [$graph xaxis invtransform $zoomInfo($graph,$index,x)]
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set y [$graph yaxis invtransform $zoomInfo($graph,$index,y)]
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set marker "zoomText_$index"
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set text [format "x=%.4g\ny=%.4g" $x $y]
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if [$graph marker exists $marker] {
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$graph marker configure $marker -coords { $x $y } -text $text
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} else {
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$graph marker create text -coords { $x $y } -name $marker \
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-font *lucida*-r-*-10-* \
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-text $text -anchor center -bg {} -justify left
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}
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}
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proc blt::DestroyZoomTitle { graph } {
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global zoomInfo
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if { $zoomInfo($graph,corner) == "A" } {
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catch { $graph marker delete "zoomTitle" }
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}
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}
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proc blt::PopZoom { graph } {
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global zoomInfo
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set zoomStack $zoomInfo($graph,stack)
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if { [llength $zoomStack] > 0 } {
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set cmd [lindex $zoomStack 0]
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set zoomInfo($graph,stack) [lrange $zoomStack 1 end]
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eval $cmd
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blt::ZoomTitleLast $graph
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busy hold $graph
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update
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after 2000 "blt::DestroyZoomTitle $graph"
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busy release $graph
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} else {
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catch { $graph marker delete "zoomTitle" }
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}
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}
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# Push the old axis limits on the stack and set the new ones
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proc blt::PushZoom { graph } {
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global zoomInfo
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eval $graph marker delete [$graph marker names "zoom*"]
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if { [info exists zoomInfo($graph,afterId)] } {
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after cancel $zoomInfo($graph,afterId)
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}
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set x1 $zoomInfo($graph,A,x)
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set y1 $zoomInfo($graph,A,y)
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set x2 $zoomInfo($graph,B,x)
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set y2 $zoomInfo($graph,B,y)
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if { ($x1 == $x2) || ($y1 == $y2) } {
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# No delta, revert to start
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return
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}
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set cmd {}
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foreach margin { xaxis yaxis x2axis y2axis } {
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foreach axis [$graph $margin use] {
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set min [$graph axis cget $axis -min]
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set max [$graph axis cget $axis -max]
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set c [list $graph axis configure $axis -min $min -max $max]
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append cmd "$c\n"
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}
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}
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set zoomInfo($graph,stack) [linsert $zoomInfo($graph,stack) 0 $cmd]
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busy hold $graph
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# This update lets the busy cursor take effect.
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update
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foreach margin { xaxis x2axis } {
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foreach axis [$graph $margin use] {
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set min [$graph axis invtransform $axis $x1]
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set max [$graph axis invtransform $axis $x2]
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if { $min!=$max } {
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if { $min > $max } {
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$graph axis configure $axis -min $max -max $min
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} else {
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$graph axis configure $axis -min $min -max $max
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}
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}
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}
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}
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foreach margin { yaxis y2axis } {
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foreach axis [$graph $margin use] {
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set min [$graph axis invtransform $axis $y1]
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set max [$graph axis invtransform $axis $y2]
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if { $min!=$max } {
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if { $min > $max } {
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$graph axis configure $axis -min $max -max $min
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} else {
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$graph axis configure $axis -min $min -max $max
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}
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}
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}
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}
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# This "update" forces the graph to be redrawn
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update
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busy release $graph
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}
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#
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# This routine terminates either an existing zoom, or pops back to
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# the previous zoom level (if no zoom is in progress).
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#
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proc blt::ResetZoom { graph } {
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global zoomInfo
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if { ![info exists zoomInfo($graph,corner)] } {
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blt::InitStack $graph
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}
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eval $graph marker delete [$graph marker names "zoom*"]
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if { $zoomInfo($graph,corner) == "A" } {
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# Reset the whole axis
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blt::PopZoom $graph
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} else {
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global zoomMod
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if { [info exists zoomMod] } {
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set modifier $zoomMod
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} else {
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set modifier "Any-"
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}
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set zoomInfo($graph,corner) A
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bind $graph <${modifier}Motion> { }
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}
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}
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option add *zoomTitle.font -*-helvetica-medium-R-*-*-18-*-*-*-*-*-*-*
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option add *zoomTitle.shadow yellow4
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option add *zoomTitle.foreground yellow1
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option add *zoomTitle.coords "-Inf Inf"
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proc blt::ZoomTitleNext { graph } {
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global zoomInfo
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set level [expr [llength $zoomInfo($graph,stack)] + 1]
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if { [$graph cget -invertxy] } {
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set coords "-Inf -Inf"
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} else {
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set coords "-Inf Inf"
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}
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$graph marker create text -name "zoomTitle" -text "Zoom #$level" \
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-coords $coords -bindtags "" -anchor nw
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}
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proc blt::ZoomTitleLast { graph } {
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global zoomInfo
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set level [llength $zoomInfo($graph,stack)]
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if { $level > 0 } {
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$graph marker create text -name "zoomTitle" -anchor nw \
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-text "Zoom #$level"
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}
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}
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proc blt::SetZoomPoint { graph x y } {
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global zoomInfo zoomMod
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if { ![info exists zoomInfo($graph,corner)] } {
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blt::InitStack $graph
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}
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blt::GetCoords $graph $x $y $zoomInfo($graph,corner)
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if { [info exists zoomMod] } {
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set modifier $zoomMod
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} else {
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set modifier "Any-"
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}
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if { $zoomInfo($graph,corner) == "A" } {
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if { ![$graph inside $x $y] } {
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return
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}
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# First corner selected, start watching motion events
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#blt::MarkPoint $graph A
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blt::ZoomTitleNext $graph
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bind $graph <${modifier}Motion> {
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blt::GetCoords %W %x %y B
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#blt::MarkPoint $graph B
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blt::Box %W
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}
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set zoomInfo($graph,corner) B
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} else {
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# Delete the modal binding
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bind $graph <${modifier}Motion> { }
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blt::PushZoom $graph
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set zoomInfo($graph,corner) A
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}
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}
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option add *zoomOutline.dashes 4
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option add *zoomTitle.anchor nw
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option add *zoomOutline.lineWidth 2
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option add *zoomOutline.xor yes
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proc blt::MarchingAnts { graph offset } {
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global zoomInfo
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incr offset
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if { [$graph marker exists zoomOutline] } {
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$graph marker configure zoomOutline -dashoffset $offset
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set interval $zoomInfo($graph,interval)
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set id [after $interval [list blt::MarchingAnts $graph $offset]]
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set zoomInfo($graph,afterId) $id
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}
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}
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proc blt::Box { graph } {
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global zoomInfo
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if { $zoomInfo($graph,A,x) > $zoomInfo($graph,B,x) } {
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set x1 [$graph xaxis invtransform $zoomInfo($graph,B,x)]
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set y1 [$graph yaxis invtransform $zoomInfo($graph,B,y)]
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set x2 [$graph xaxis invtransform $zoomInfo($graph,A,x)]
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set y2 [$graph yaxis invtransform $zoomInfo($graph,A,y)]
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} else {
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set x1 [$graph xaxis invtransform $zoomInfo($graph,A,x)]
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set y1 [$graph yaxis invtransform $zoomInfo($graph,A,y)]
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set x2 [$graph xaxis invtransform $zoomInfo($graph,B,x)]
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set y2 [$graph yaxis invtransform $zoomInfo($graph,B,y)]
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}
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set coords { $x1 $y1 $x2 $y1 $x2 $y2 $x1 $y2 $x1 $y1 }
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if { [$graph marker exists "zoomOutline"] } {
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$graph marker configure "zoomOutline" -coords $coords
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} else {
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set X [lindex [$graph xaxis use] 0]
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set Y [lindex [$graph yaxis use] 0]
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$graph marker create line -coords $coords -name "zoomOutline" \
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-mapx $X -mapy $Y
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set interval $zoomInfo($graph,interval)
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set id [after $interval [list blt::MarchingAnts $graph 0]]
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set zoomInfo($graph,afterId) $id
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}
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}
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proc Blt_PostScriptDialog { graph } {
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global POSTSCRIPTWINDOW
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global POSTSCRIPTGRAPH
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set top $graph.top
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toplevel $top
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wm title $top "Postscript out"
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set POSTSCRIPTWINDOW $top
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set POSTSCRIPTGRAPH $graph
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foreach var { center landscape maxpect preview decorations padx
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pady paperwidth paperheight width height colormode } {
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global $graph.$var
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set $graph.$var [$graph postscript cget -$var]
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}
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set row 1
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set col 0
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label $top.title -text "PostScript Options"
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blt::table $top $top.title -cspan 7
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foreach bool { center landscape maxpect preview decorations } {
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set w $top.$bool-label
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label $w -text "-$bool" -font *courier*-r-*12*
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blt::table $top $row,$col $w -anchor e -pady { 2 0 } -padx { 0 4 }
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set w $top.$bool-yes
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global $graph.$bool
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radiobutton $w -text "yes" -variable $graph.$bool -value 1
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blt::table $top $row,$col+1 $w -anchor w
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set w $top.$bool-no
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radiobutton $w -text "no" -variable $graph.$bool -value 0
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blt::table $top $row,$col+2 $w -anchor w
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incr row
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}
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label $top.modes -text "-colormode" -font *courier*-r-*12*
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blt::table $top $row,0 $top.modes -anchor e -pady { 2 0 } -padx { 0 4 }
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set col 1
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foreach m { color greyscale } {
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set w $top.$m
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radiobutton $w -text $m -variable $graph.colormode -value $m
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blt::table $top $row,$col $w -anchor w
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incr col
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}
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set row 1
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frame $top.sep -width 2 -bd 1 -relief sunken
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blt::table $top $row,3 $top.sep -fill y -rspan 6
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set col 4
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foreach value { padx pady paperwidth paperheight width height } {
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set w $top.$value-label
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label $w -text "-$value" -font *courier*-r-*12*
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blt::table $top $row,$col $w -anchor e -pady { 2 0 } -padx { 0 4 }
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set w $top.$value-entry
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global $graph.$value
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entry $w -textvariable $graph.$value -width 8
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blt::table $top $row,$col+1 $w -cspan 2 -anchor w -padx 8
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incr row
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}
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blt::table configure $top c3 -width .125i
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button $top.cancel -text "Cancel" -command "destroy $top"
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blt::table $top $row,0 $top.cancel -width 1i -pady 2 -cspan 3
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button $top.reset -text "Reset" -command "destroy $top"
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#blt::table $top $row,1 $top.reset -width 1i
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button $top.print -text "Print" -command {blt::ResetPostScript $POSTSCRIPTGRAPH; destroy $POSTSCRIPTWINDOW }
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blt::table $top $row,4 $top.print -width 1i -pady 2 -cspan 2
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}
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proc blt::ResetPostScript { graph } {
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foreach var { center landscape maxpect preview decorations padx
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pady paperwidth paperheight width height colormode } {
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global $graph.$var
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set old [$graph postscript cget -$var]
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if { [catch {$graph postscript configure -$var [set $graph.$var]}] != 0 } {
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$graph postscript configure -$var $old
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set $graph.$var $old
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}
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}
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set types {{"Postscript File" {.ps} } {"Encapsulated Postscript File" {.eps} }};
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set PSFILE [tk_getSaveFile -filetypes $types -parent . -initialfile Untitled -defaultextension .ps]
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if {[string length $PSFILE]!=0} {
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$graph postscript output $PSFILE
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}
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}
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