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author | William Joye <wjoye@cfa.harvard.edu> | 2019-08-04 17:04:24 (GMT) |
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committer | William Joye <wjoye@cfa.harvard.edu> | 2019-08-04 17:04:24 (GMT) |
commit | ca3770496deb9ecf7e63bd684f4d82dbdd185d83 (patch) | |
tree | 7b1c49ccfbd142cc3a9acd67883cd6fc337c9cef /tkblt/library | |
parent | 59d7227509fd4c110bc78be98dc485c6ac939d05 (diff) | |
download | blt-ca3770496deb9ecf7e63bd684f4d82dbdd185d83.zip blt-ca3770496deb9ecf7e63bd684f4d82dbdd185d83.tar.gz blt-ca3770496deb9ecf7e63bd684f4d82dbdd185d83.tar.bz2 |
update tkblt
Diffstat (limited to 'tkblt/library')
-rw-r--r-- | tkblt/library/graph.tcl | 554 |
1 files changed, 0 insertions, 554 deletions
diff --git a/tkblt/library/graph.tcl b/tkblt/library/graph.tcl deleted file mode 100644 index a4dfe8e..0000000 --- a/tkblt/library/graph.tcl +++ /dev/null @@ -1,554 +0,0 @@ -package provide Tkblt 3.0 - -namespace eval ::blt::legend { - variable _private - array set _private { - afterId "" - scroll 0 - space off - drag 0 - x 0 - y 0 - } -} - -namespace eval ::blt::ZoomStack { - variable _private - array set _private { - afterId "" - scroll 0 - space off - drag 0 - x 0 - y 0 - } -} - -proc blt::legend::SetSelectionAnchor { w tagOrId } { - set elem [$w legend get $tagOrId] - # If the anchor hasn't changed, don't do anything - if { $elem != [$w legend get anchor] } { - $w legend selection clearall - $w legend focus $elem - $w legend selection set $elem - $w legend selection anchor $elem - } -} - -# ---------------------------------------------------------------------- -# -# MoveFocus -- -# -# Invoked by KeyPress bindings. Moves the active selection to -# the entry <where>, which is an index such as "up", "down", -# "prevsibling", "nextsibling", etc. -# -# ---------------------------------------------------------------------- -proc blt::legend::MoveFocus { w elem } { - catch {$w legend focus $elem} result - puts stderr "result=$result elem=$elem" - if { [$w legend cget -selectmode] == "single" } { - $w legend selection clearall - $w legend selection set focus - $w legend selection anchor focus - } -} - - -proc Blt_ActiveLegend { g } { - $g legend bind all <Enter> [list blt::ActivateLegend $g ] - $g legend bind all <Leave> [list blt::DeactivateLegend $g] - $g legend bind all <ButtonPress-1> [list blt::HighlightLegend $g] -} - -proc Blt_Crosshairs { g } { - blt::Crosshairs $g -} - -proc Blt_ResetCrosshairs { g state } { - blt::Crosshairs $g "Any-Motion" $state -} - -proc Blt_ZoomStack { g args } { - array set params { - -mode click - -button "ButtonPress-3" - } - array set params $args - if { $params(-mode) == "click" } { - blt::ZoomStack::ClickClick $g $params(-button) - } else { - blt::ZoomStack::ClickRelease $g $params(-button) - } -} - -proc Blt_ClosestPoint { g } { - blt::ClosestPoint $g -} - -# -# The following procedures that reside in the "blt" namespace are -# supposed to be private. -# - -proc blt::ActivateLegend { g } { - set elem [$g legend get current] - $g legend activate $elem -} -proc blt::DeactivateLegend { g } { - set elem [$g legend get current] - $g legend deactivate $elem -} - -proc blt::HighlightLegend { g } { - set elem [$g legend get current] - if { $elem != "" } { - set relief [$g element cget $elem -legendrelief] - if { $relief == "flat" } { - $g element configure $elem -legendrelief raised - $g element activate $elem - } else { - $g element configure $elem -legendrelief flat - $g element deactivate $elem - } - } -} - -proc blt::Crosshairs { g {event "Any-Motion"} {state "on"}} { - $g crosshairs $state - bind crosshairs-$g <$event> { - %W crosshairs configure -position @%x,%y - } - bind crosshairs-$g <Leave> { - %W crosshairs off - } - bind crosshairs-$g <Enter> { - %W crosshairs on - } - $g crosshairs configure -color red - if { $state == "on" } { - blt::AddBindTag $g crosshairs-$g - } elseif { $state == "off" } { - blt::RemoveBindTag $g crosshairs-$g - } -} - -proc blt::ClosestPoint { g {event "Control-ButtonPress-2"} } { - bind closest-point-$g <$event> { - blt::FindElement %W %x %y - } - blt::AddBindTag $g closest-point-$g -} - -proc blt::AddBindTag { widget tag } { - set oldTagList [bindtags $widget] - if { [lsearch $oldTagList $tag] < 0 } { - bindtags $widget [linsert $oldTagList 0 $tag] - } -} - -proc blt::RemoveBindTag { widget tag } { - set oldTagList [bindtags $widget] - set index [lsearch $oldTagList $tag] - if { $index >= 0 } { - bindtags $widget [lreplace $oldTagList $index $index] - } -} - -proc blt::FindElement { g x y } { - array set info [$g element closest $x $y -interpolate yes] - if { ![info exists info(name)] } { - beep - return - } - # -------------------------------------------------------------- - # find(name) - element Id - # find(index) - index of closest point - # find(x) find(y) - coordinates of closest point - # or closest point on line segment. - # find(dist) - distance from sample coordinate - # -------------------------------------------------------------- - set markerName "bltClosest_$info(name)" - catch { $g marker delete $markerName } - $g marker create text $markerName \ - -coords "$info(x) $info(y)" \ - -text "$info(name): $info(dist)\nindex $info(index)" \ - -anchor center -justify left \ - -yoffset 0 -bg {} - - set coords [$g invtransform $x $y] - set nx [lindex $coords 0] - set ny [lindex $coords 1] - - $g marker create line line.$markerName -coords "$nx $ny $info(x) $info(y)" - - blt::FlashPoint $g $info(name) $info(index) 10 - blt::FlashPoint $g $info(name) [expr $info(index) + 1] 10 -} - -proc blt::FlashPoint { g name index count } { - if { $count & 1 } { - $g element deactivate $name - } else { - $g element activate $name $index - } - incr count -1 - if { $count > 0 } { - after 200 blt::FlashPoint $g $name $index $count - update - } else { - catch {eval $g marker delete [$g marker names "bltClosest_*"]} - } -} - - -proc blt::ZoomStack::Init { g } { - variable _private - set _private($g,interval) 100 - set _private($g,afterId) 0 - set _private($g,A,x) {} - set _private($g,A,y) {} - set _private($g,B,x) {} - set _private($g,B,y) {} - set _private($g,stack) {} - set _private($g,corner) A -} - -proc blt::ZoomStack::ClickClick { g reset } { - variable _private - - Init $g - - bind zoom-$g <Enter> "focus %W" - bind zoom-$g <KeyPress-Escape> { blt::ZoomStack::Reset %W } - bind zoom-$g <ButtonPress-1> { blt::ZoomStack::SetPoint %W %x %y } - bind zoom-$g <${reset}> { - if { [%W inside %x %y] } { - blt::ZoomStack::Reset %W - } - } - blt::AddBindTag $g zoom-$g -} - -proc blt::ZoomStack::ClickRelease { g reset } { - variable _private - - Init $g - bind zoom-$g <Enter> "focus %W" - bind zoom-$g <KeyPress-Escape> {blt::ZoomStack::Reset %W} - bind zoom-$g <ButtonPress-1> {blt::ZoomStack::DragStart %W %x %y} - bind zoom-$g <B1-Motion> {blt::ZoomStack::DragMotion %W %x %y} - bind zoom-$g <ButtonRelease-1> {blt::ZoomStack::DragFinish %W %x %y} - bind zoom-$g <${reset}> { - if { [%W inside %x %y] } { - blt::ZoomStack::Reset %W - } - } - blt::AddBindTag $g zoom-$g -} - -proc blt::ZoomStack::GetCoords { g x y index } { - variable _private - if { [$g cget -invertxy] } { - set _private($g,$index,x) $y - set _private($g,$index,y) $x - } else { - set _private($g,$index,x) $x - set _private($g,$index,y) $y - } -} - -proc blt::ZoomStack::MarkPoint { g index } { - variable _private - - if { [llength [$g xaxis use]] > 0 } { - set x [$g xaxis invtransform $_private($g,$index,x)] - } else if { [llength [$g x2axis use]] > 0 } { - set x [$g x2axis invtransform $_private($g,$index,x)] - } - if { [llength [$g yaxis use]] > 0 } { - set y [$g yaxis invtransform $_private($g,$index,y)] - } else if { [llength [$g y2axis use]] > 0 } { - set y [$g y2axis invtransform $_private($g,$index,y)] - } - set marker "zoomText_$index" - set text [format "x=%.4g\ny=%.4g" $x $y] - - if [$g marker exists $marker] { - $g marker configure $marker -coords "$x $y" -text $text - } else { - $g marker create text $marker \ - -coords "$x $y" \ - -text $text -anchor center -bg {} -justify left - } -} - -proc blt::ZoomStack::DestroyTitle { g } { - variable _private - - if { $_private($g,corner) == "A" } { - catch { $g marker delete "zoomTitle" } - } -} - -proc blt::ZoomStack::Pop { g } { - variable _private - - set zoomStack $_private($g,stack) - if { [llength $zoomStack] > 0 } { - set cmd [lindex $zoomStack 0] - set _private($g,stack) [lrange $zoomStack 1 end] - eval $cmd - TitleLast $g - update - after 2000 [list blt::ZoomStack::DestroyTitle $g] - } else { - catch { $g marker delete "zoomTitle" } - } -} - -# Push the old axis limits on the stack and set the new ones - -proc blt::ZoomStack::Push { g } { - variable _private - - catch {eval $g marker delete [$g marker names "zoom*"]} - if { [info exists _private($g,afterId)] } { - after cancel $_private($g,afterId) - } - set x1 $_private($g,A,x) - set y1 $_private($g,A,y) - set x2 $_private($g,B,x) - set y2 $_private($g,B,y) - - if { ($x1 == $x2) || ($y1 == $y2) } { - # No delta, revert to start - return - } - set cmd {} - foreach axis [$g axis names] { - if { [$g axis cget $axis -hide] } { - continue - } - set min [$g axis cget $axis -min] - set max [$g axis cget $axis -max] - set logscale [$g axis cget $axis -logscale] - # Save the current scale (log or linear) so that we can restore it. - # This is for the case where the user changes to logscale while - # zooming. A previously pushed axis limit could be negative. It - # seems better for popping the zoom stack to restore a previous view - # (not convert the ranges). - set c [list $g axis configure $axis] - lappend c -min $min -max $max -logscale $logscale - append cmd "$c\n" - } - - # This effectively pushes the command to reset the graph to the current - # zoom level onto the stack. This is useful if the new axis ranges are - # bad and we need to reset the zoom stack. - set _private($g,stack) [linsert $_private($g,stack) 0 $cmd] - foreach axis [$g axis names] { - if { [$g axis cget $axis -hide] } { - continue; # Don't set zoom on axes not displayed. - } - set type [$g axis type $axis] - if { $type == "x" } { - set min [$g axis invtransform $axis $x1] - set max [$g axis invtransform $axis $x2] - } elseif { $type == "y" } { - set min [$g axis invtransform $axis $y1] - set max [$g axis invtransform $axis $y2] - } else { - continue; # Axis is not bound to any margin. - } - if { ![SetAxisRanges $g $axis $min $max] } { - Pop $g - bell - return - } - } - update; # This "update" redraws the graph -} - -proc blt::ZoomStack::SetAxisRanges { g axis min max } { - if { $min > $max } { - set tmp $max; set max $min; set min $tmp - } - if { [catch { $g axis configure $axis -min $min -max $max }] != 0 } { - return 0 - } - return 1 -} - -# -# This routine terminates either an existing zoom, or pops back to -# the previous zoom level (if no zoom is in progress). -# -proc blt::ZoomStack::Reset { g } { - variable _private - - if { ![info exists _private($g,corner)] } { - Init $g - } - catch {eval $g marker delete [$g marker names "zoom*"]} - - if { $_private($g,corner) == "A" } { - # Reset the whole axis - Pop $g - } else { - set _private($g,corner) A - blt::RemoveBindTag $g select-region-$g - } -} - -proc blt::ZoomStack::TitleNext { g } { - variable _private - - set level [expr [llength $_private($g,stack)] + 1] - if { [$g cget -invertxy] } { - set coords "Inf -Inf" - } else { - set coords "-Inf Inf" - } - set marker "zoomTitle" - if {![$g marker exists $marker]} { - $g marker create text $marker -bindtags "" -anchor nw - } - $g marker configure $marker -text "Zoom #$level" -coords $coords -} - -proc blt::ZoomStack::TitleLast { g } { - variable _private - - set level [llength $_private($g,stack)] - if { [$g cget -invertxy] } { - set coords "Inf -Inf" - } else { - set coords "-Inf Inf" - } - - set marker "zoomTitle" - if { $level > 0 } { - if {![$g marker exists $marker]} { - $g marker create text "zoomTitle" -anchor nw - } - $g marker configure $marker -text "Zoom #$level" -coords $coords - } -} - - -proc blt::ZoomStack::SetPoint { g x y } { - variable _private - if { ![info exists _private($g,corner)] } { - Init $g - } - GetCoords $g $x $y $_private($g,corner) - bind select-region-$g <Motion> { - blt::ZoomStack::GetCoords %W %x %y B - #blt::ZoomStack::MarkPoint $g B - blt::ZoomStack::Box %W - } - if { $_private($g,corner) == "A" } { - if { ![$g inside $x $y] } { - return - } - # First corner selected, start watching motion events - - #MarkPoint $g A - TitleNext $g - - blt::AddBindTag $g select-region-$g - set _private($g,corner) B - } else { - # Delete the modal binding - blt::RemoveBindTag $g select-region-$g - Push $g - set _private($g,corner) A - } -} - -proc blt::ZoomStack::DragStart { g x y } { - variable _private - if { ![info exists _private($g,corner)] } { - Init $g - } - GetCoords $g $x $y A - if { ![$g inside $x $y] } { - return - } - set _private(drag) 1 - TitleNext $g -} - -proc blt::ZoomStack::DragMotion { g x y } { - variable _private - - if { $_private(drag) } { - GetCoords $g $x $y B - set dx [expr abs($_private($g,B,x) - $_private($g,A,x))] - set dy [expr abs($_private($g,B,y) - $_private($g,A,y))] - Box $g - if { $dy > 10 && $dx > 10 } { - return 1 - } - } - return 0 -} - -proc blt::ZoomStack::DragFinish { g x y } { - variable _private - if { [DragMotion $g $x $y] } { - Push $g - } else { - catch {eval $g marker delete [$g marker names "zoom*"]} - if { [info exists _private($g,afterId)] } { - after cancel $_private($g,afterId) - } - } - set _private(drag) 0 -} - - -proc blt::ZoomStack::MarchingAnts { g offset } { - variable _private - - incr offset - # wrap the counter after 2^16 - set offset [expr $offset & 0xFFFF] - if { [$g marker exists zoomOutline] } { - $g marker configure zoomOutline -dashoffset $offset - set interval $_private($g,interval) - set id [after $interval [list blt::ZoomStack::MarchingAnts $g $offset]] - set _private($g,afterId) $id - } -} - -proc blt::ZoomStack::Box { g } { - variable _private - - if { $_private($g,A,x) > $_private($g,B,x) } { - set x1 [$g xaxis invtransform $_private($g,B,x)] - set y1 [$g yaxis invtransform $_private($g,B,y)] - set x2 [$g xaxis invtransform $_private($g,A,x)] - set y2 [$g yaxis invtransform $_private($g,A,y)] - } else { - set x1 [$g xaxis invtransform $_private($g,A,x)] - set y1 [$g yaxis invtransform $_private($g,A,y)] - set x2 [$g xaxis invtransform $_private($g,B,x)] - set y2 [$g yaxis invtransform $_private($g,B,y)] - } - set coords "$x1 $y1 $x2 $y1 $x2 $y2 $x1 $y2 $x1 $y1" - if { [$g marker exists "zoomOutline"] } { - $g marker configure "zoomOutline" -coords $coords - } else { - set X [lindex [$g xaxis use] 0] - set Y [lindex [$g yaxis use] 0] - $g marker create line "zoomOutline" \ - -coords $coords -mapx $X -mapy $Y \ - -dashes 4 -linewidth 1 - set interval $_private($g,interval) - set id [after $interval [list blt::ZoomStack::MarchingAnts $g 0]] - set _private($g,afterId) $id - } -} - |