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source: trunk/gui/scripts/xyresult.tcl @ 5975

Last change on this file since 5975 was 5659, checked in by ldelgass, 9 years ago
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1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: xyresult - X/Y plot in a ResultSet
4	#
5	# This widget is an X/Y plot, meant to view line graphs produced
6	# as output from the run of a Rappture tool. Use the "add" and
7	# "delete" methods to control the data objects showing on the plot.
8	# ======================================================================
9	# AUTHOR: Michael McLennan, Purdue University
10	# Copyright (c) 2004-2012 HUBzero Foundation, LLC
11	#
12	# See the file "license.terms" for information on usage and
13	# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
14	# ======================================================================
15	package require Itk
16	package require BLT
17
18	option add *XyResult.width 3i widgetDefault
19	option add *XyResult.height 3i widgetDefault
20	option add *XyResult.gridColor #d9d9d9 widgetDefault
21	option add *XyResult.activeColor blue widgetDefault
22	option add *XyResult.dimColor gray widgetDefault
23	option add *XyResult.controlBackground gray widgetDefault
24	option add *XyResult.font \
25	--helvetica-medium-r-normal--12-* widgetDefault
26
27	set autocolors {
28	#0000cd
29	#cd0000
30	#00cd00
31	#3a5fcd
32	#cdcd00
33	#cd1076
34	#009acd
35	#00c5cd
36	#a2b5cd
37	#7ac5cd
38	#66cdaa
39	#a2cd5a
40	#cd9b9b
41	#cdba96
42	#cd3333
43	#cd6600
44	#cd8c95
45	#cd00cd
46	#9a32cd
47	#6ca6cd
48	#9ac0cd
49	#9bcd9b
50	#00cd66
51	#cdc673
52	#cdad00
53	#cd5555
54	#cd853f
55	#cd7054
56	#cd5b45
57	#cd6889
58	#cd69c9
59	#551a8b
60	}
61
62	option add *XyResult.autoColors $autocolors widgetDefault
63	option add XyResultBalloon*Entry.background white widgetDefault
64
65	itcl::class Rappture::XyResult {
66	inherit itk::Widget
67
68	itk_option define -gridcolor gridColor GridColor ""
69	itk_option define -activecolor activeColor ActiveColor ""
70	itk_option define -dimcolor dimColor DimColor ""
71	itk_option define -autocolors autoColors AutoColors ""
72
73	private variable _viewable ""; # Display list for widget.
74	private variable _dispatcher ""; # Dispatcher for !events
75	private variable _dlist ""; # List of dataobj objects
76	private variable _dataobj2raise; # Maps dataobj => raise flag 0/1
77	private variable _dataobj2desc; # Maps dataobj => description of data
78	private variable _dataobj2sim; # Maps dataobj => type of graph element
79	private variable _elem2comp; # Maps graph element => dataobj
80	private variable _comp2elem; # Maps graph element => dataobj
81	private variable _label2axis; # Maps axis label => axis ID
82	private variable _limits; # Axis limits: x-min, x-max, etc.
83	private variable _nextColorIndex 0; # Index for next "-color auto"
84	private variable _hilite; # Info for element currently highlighted
85	private variable _axis; # Info for axis manipulations
86	private variable _axisPopup; # Info for axis being edited in popup
87	common _downloadPopup; # Download options from popup
88	private variable _markers
89	private variable _nextElement 0
90
91	constructor {args} {
92	# defined below
93	}
94	destructor {
95	# defined below
96	}
97	public method add {dataobj {settings ""}}
98	public method get {}
99	public method delete {args}
100	public method scale {args}
101	public method parameters {title args} {
102	# do nothing
103	}
104	public method download {option args}
105
106	protected method Rebuild {}
107	protected method ResetLimits {}
108	protected method ResetLegend {}
109	protected method Zoom {option args}
110	protected method Hilite {state x y}
111	protected method Axis {option args}
112	protected method GetAxes {dataobj}
113	protected method GetLineMarkerOptions { style }
114	protected method GetTextMarkerOptions { style }
115	protected method EnterMarker { g name x y text }
116	protected method LeaveMarker { g name }
117
118
119	private method BuildGraph { dlist }
120	private method BuildMarkers { dataobj elem }
121	private method FormatAxis { axis w value }
122	private method GetFormattedValue { axis g value }
123	private method BuildAxisPopup { popup }
124	private method ShowAxisPopup { axis }
125	private method SetAxis { setting }
126	private method SetElements { dataobj {settings ""} }
127	private method SetAxisRangeState { axis }
128	}
129
130	itk::usual XyResult {
131	keep -background -foreground -cursor -font
132	}
133
134	itk::usual Panedwindow {
135	keep -background -cursor
136	}
137
138	# ----------------------------------------------------------------------
139	# CONSTRUCTOR
140	# ----------------------------------------------------------------------
141	itcl::body Rappture::XyResult::constructor {args} {
142	Rappture::dispatcher _dispatcher
143	$_dispatcher register !rebuild
144	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
145
146	array set _downloadPopup {
147	format csv
148	}
149
150	option add hull.width hull.height
151	pack propagate $itk_component(hull) no
152
153	itk_component add main {
154	Rappture::SidebarFrame $itk_interior.main
155	}
156	pack $itk_component(main) -expand yes -fill both
157	set f [$itk_component(main) component controls]
158
159	itk_component add reset {
160	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
161	-highlightthickness 0 \
162	-image [Rappture::icon reset-view] \
163	-command [itcl::code $this Zoom reset]
164	} {
165	usual
166	ignore -borderwidth -highlightthickness
167	}
168	pack $itk_component(reset) -padx 4 -pady 2 -anchor e
169	Rappture::Tooltip::for $itk_component(reset) \
170	"Reset the view to the default zoom level"
171
172	set f [$itk_component(main) component frame]
173	itk_component add plot {
174	blt::graph $f.plot \
175	-highlightthickness 0 -plotpadx 0 -plotpady 4
176	} {
177	keep -background -foreground -cursor -font
178	}
179	pack $itk_component(plot) -expand yes -fill both
180
181	$itk_component(plot) pen configure activeLine \
182	-symbol square -pixels 3 -linewidth 2 \
183	-outline black -fill red -color black
184
185	# Add bindings so you can mouse over points to see values:
186	#
187	$itk_component(plot) element bind all <Enter> \
188	[itcl::code $this Hilite at %x %y]
189	$itk_component(plot) element bind all <Motion> \
190	[itcl::code $this Hilite at %x %y]
191	$itk_component(plot) element bind all <Leave> \
192	[itcl::code $this Hilite off %x %y]
193
194	$itk_component(plot) legend configure -hide yes
195
196	#
197	# Add legend for editing hidden/elements:
198	#
199	set inner [$itk_component(main) insert end \
200	-title "Legend" \
201	-icon [Rappture::icon wrench]]
202	$inner configure -borderwidth 4
203
204	itk_component add legend {
205	Rappture::XyLegend $inner.legend $itk_component(plot)
206	}
207	pack $itk_component(legend) -expand yes -fill both
208	after idle [itcl::code $this ResetLegend]
209
210	# quick-and-dirty zoom functionality, for now...
211	Blt_ZoomStack $itk_component(plot)
212	eval itk_initialize $args
213
214	set _hilite(elem) ""
215	}
216
217	# ----------------------------------------------------------------------
218	# DESTRUCTOR
219	# ----------------------------------------------------------------------
220	itcl::body Rappture::XyResult::destructor {} {
221	}
222
223	# ----------------------------------------------------------------------
224	# USAGE: add <dataobj> ?<settings>?
225	#
226	# Clients use this to add a dataobj to the plot. The optional <settings>
227	# are used to configure the plot. Allowed settings are -color,
228	# -brightness, -width, -linestyle and -raise.
229	# ----------------------------------------------------------------------
230	itcl::body Rappture::XyResult::add {dataobj {settings ""}} {
231	set g $itk_component(plot)
232	SetElements $dataobj $settings
233
234	array set attrs $settings
235
236	# Colors have to be set/reset here because of "-brightness" and "auto".
237	# Colors can't be overriden by the user.
238
239	# If the color is "auto", then select a color from -autocolors
240	if { ![info exists attrs(-color)] } {
241	set color "auto"
242	} else {
243	set color $attrs(-color)
244	}
245	if { ![info exists attrs(-width)] } {
246	set linewidth 1
247	} else {
248	set linewidth $attrs(-width)
249	}
250	if { $color == "auto" \|\| $color == "autoreset" } {
251	# if { $color == "autoreset" } {
252	# set _nextColorIndex 0
253	# }
254	set color [lindex $itk_option(-autocolors) $_nextColorIndex]
255	if { "" == $color} {
256	set color black
257	}
258	# Set up for next auto color
259	incr _nextColorIndex
260	if { $_nextColorIndex >= [llength $itk_option(-autocolors)] } {
261	set _nextColorIndex 0
262	}
263	}
264	# If -brightness is set, then update the color.
265	if { [info exists attrs(-brightness)] } {
266	set brightness $attrs(-brightness)
267	set color [Rappture::color::brightness $color $brightness]
268	set bg [$itk_component(plot) cget -plotbackground]
269	foreach {h s v} [Rappture::color::RGBtoHSV $bg] break
270	if {$v > 0.5} {
271	set color [Rappture::color::brightness_max $color 0.8]
272	} else {
273	set color [Rappture::color::brightness_min $color 0.2]
274	}
275	}
276	set type [$dataobj hints type]
277
278	set elem ""
279	foreach cname [$dataobj components] {
280	set tag $dataobj-$cname
281	set elem $_comp2elem($tag)
282	switch -- $type {
283	"bar" {
284	$g bar configure $elem -foreground $color -background $color \
285	-hide no
286	}
287	"scatter" {
288	$g line configure $elem -color $color -hide no
289	}
290	default {
291	$g line configure $elem -color $color -hide no \
292	-linewidth $linewidth
293	}
294	}
295	if { [lsearch $_viewable $elem] < 0 } {
296	lappend _viewable $elem
297	}
298	}
299	if { [$dataobj info class] == "::Rappture::Curve" } {
300	BuildMarkers $dataobj $elem
301	}
302	$_dispatcher event -idle !rebuild
303	}
304
305	# ----------------------------------------------------------------------
306	# USAGE: get
307	#
308	# Clients use this to query the list of objects being plotted, in
309	# order from bottom to top of this result.
310	# ----------------------------------------------------------------------
311	itcl::body Rappture::XyResult::get {} {
312	# put the dataobj list in order according to -raise options
313	set bottom {}
314	set top {}
315	foreach obj $_dlist {
316	if {[info exists _dataobj2raise($obj)] && $_dataobj2raise($obj)} {
317	lappend top $obj
318	} else {
319	lappend bottom $obj
320	}
321	}
322	set _dlist [concat $bottom $top]
323	return $_dlist
324	}
325
326	# ----------------------------------------------------------------------
327	# USAGE: delete ?<dataobj1> <dataobj2> ...?
328	#
329	# Clients use this to delete a dataobj from the plot. If no dataobjs
330	# are specified, then all dataobjs are deleted.
331	# ----------------------------------------------------------------------
332	itcl::body Rappture::XyResult::delete {args} {
333	set g $itk_component(plot)
334
335	# First try to create list of elements from the dataobjs specified
336	set elemlist {}
337	foreach dataobj $args {
338	foreach cname [$dataobj components] {
339	set tag $dataobj-$cname
340	if { [info exists _comp2elem($tag)] } {
341	lappend elemlist $_comp2elem($tag)
342	}
343	}
344	}
345	# If no dataobjs were specified then hide all elements.
346	if { [llength $elemlist] == 0 } {
347	set elemlist [$g element names]
348	}
349	# Hide all elements specified by their dataobjs
350	foreach elem $elemlist {
351	$g element configure $elem -hide yes
352	set i [lsearch $_viewable $elem]
353	if { $i >= 0 } {
354	set _viewable [lreplace $_viewable $i $i]
355	}
356	}
357	}
358
359	# ----------------------------------------------------------------------
360	# USAGE: scale ?<dataobj1> <dataobj2> ...?
361	#
362	# Sets the default limits for the overall plot according to the
363	# limits of the data for all of the given <dataobj> objects. This
364	# accounts for all dataobjs--even those not showing on the screen.
365	# Because of this, the limits are appropriate for all dataobjs as
366	# the user scans through data in the ResultSet viewer.
367	# ----------------------------------------------------------------------
368	itcl::body Rappture::XyResult::scale {args} {
369	set _dlist $args
370	BuildGraph $args
371	}
372
373	# ----------------------------------------------------------------------
374	# USAGE: download coming
375	# USAGE: download controls <downloadCommand>
376	# USAGE: download now
377	#
378	# Clients use this method to create a downloadable representation
379	# of the plot. Returns a list of the form {ext string}, where
380	# "ext" is the file extension (indicating the type of data) and
381	# "string" is the data itself.
382	# ----------------------------------------------------------------------
383	itcl::body Rappture::XyResult::download {option args} {
384	switch $option {
385	coming {
386	# nothing to do
387	}
388	controls {
389	set popup .xyresultdownload
390	if {![winfo exists .xyresultdownload]} {
391	# if we haven't created the popup yet, do it now
392	Rappture::Balloon $popup \
393	-title "[Rappture::filexfer::label downloadWord] as..."
394	set inner [$popup component inner]
395	label $inner.summary -text "" -anchor w
396	pack $inner.summary -side top
397	radiobutton $inner.csv -text "Data as Comma-Separated Values" \
398	-variable Rappture::XyResult::_downloadPopup(format) \
399	-value csv
400	pack $inner.csv -anchor w
401	radiobutton $inner.image -text "Image (PS/PDF/PNG/JPEG)" \
402	-variable Rappture::XyResult::_downloadPopup(format) \
403	-value image
404	pack $inner.image -anchor w
405	button $inner.go -text [Rappture::filexfer::label download] \
406	-command [lindex $args 0]
407	pack $inner.go -side bottom -pady 4
408	} else {
409	set inner [$popup component inner]
410	}
411	set num [llength [get]]
412	set num [expr {($num == 1) ? "1 result" : "$num results"}]
413	$inner.summary configure -text "[Rappture::filexfer::label downloadWord] $num in the following format:"
414	update idletasks ;# fix initial sizes
415	return $popup
416	}
417	now {
418	set popup .xyresultdownload
419	if {[winfo exists .xyresultdownload]} {
420	$popup deactivate
421	}
422	switch -- $_downloadPopup(format) {
423	csv {
424	# reverse the objects so the selected data appears on top
425	set dlist ""
426	foreach dataobj [get] {
427	set dlist [linsert $dlist 0 $dataobj]
428	}
429
430	# generate the comma-separated value data for these objects
431	set csvdata ""
432	foreach dataobj $dlist {
433	append csvdata "[string repeat - 60]\n"
434	append csvdata " [$dataobj hints label]\n"
435	if {[info exists _dataobj2desc($dataobj)]
436	&& [llength [split $_dataobj2desc($dataobj) \n]] > 1} {
437	set indent "for:"
438	foreach line [split $_dataobj2desc($dataobj) \n] {
439	append csvdata " $indent $line\n"
440	set indent " "
441	}
442	}
443	append csvdata "[string repeat - 60]\n"
444
445	append csvdata "[$dataobj hints xlabel], [$dataobj hints ylabel]\n"
446	set first 1
447	foreach comp [$dataobj components] {
448	if {!$first} {
449	# blank line between components
450	append csvdata "\n"
451	}
452	set xv [$dataobj mesh $comp]
453	set yv [$dataobj values $comp]
454	foreach x [$xv range 0 end] y [$yv range 0 end] {
455	append csvdata [format "%20.15g, %20.15g\n" $x $y]
456	}
457	set first 0
458	}
459	append csvdata "\n"
460	}
461	return [list .txt $csvdata]
462	}
463	image {
464	set popup .xyprintdownload
465	if { ![winfo exists $popup] } {
466	# Create a popup for the print dialog
467	Rappture::Balloon $popup -title "Save as image..."
468	set inner [$popup component inner]
469	# Create the print dialog widget and add it to the
470	# balloon popup.
471	Rappture::XyPrint $inner.print
472	$popup configure \
473	-deactivatecommand [list $inner.print reset]
474	blt::table $inner 0,0 $inner.print -fill both
475	}
476	update
477	# Activate the popup and call for the output.
478	foreach { widget toolName plotName } $args break
479	$popup activate $widget left
480	set inner [$popup component inner]
481	set output [$inner.print print $itk_component(plot) \
482	$toolName $plotName]
483	$popup deactivate
484	return $output
485	}
486	}
487	}
488	default {
489	error "bad option \"$option\": should be coming, controls, now"
490	}
491	}
492	}
493
494	itcl::body Rappture::XyResult::BuildMarkers { dataobj elem } {
495	set g $itk_component(plot)
496
497	set ymin -Inf
498	set ymax Inf
499	set xmax Inf
500	set xmin -Inf
501	foreach m [$dataobj xmarkers] {
502	foreach {at label style} $m break
503	set id [$g marker create line -coords [list $at $ymin $at $ymax]]
504	$g marker bind $id <Enter> \
505	[itcl::code $this EnterMarker $g x-$label $at $ymin $at]
506	$g marker bind $id <Leave> \
507	[itcl::code $this LeaveMarker $g x-$label]
508	set options [GetLineMarkerOptions $style]
509	$g marker configure $id -element $elem
510	if { $options != "" } {
511	eval $g marker configure $id $options
512	}
513	if { $label != "" } {
514	set id [$g marker create text -anchor nw \
515	-text $label -coords [list $at $ymax]]
516	$g marker configure $id -element $elem
517	set options [GetTextMarkerOptions $style]
518	if { $options != "" } {
519	eval $g marker configure $id $options
520	}
521	}
522	}
523	foreach m [$dataobj ymarkers] {
524	foreach {at label style} $m break
525	set id [$g marker create line -coords [list $xmin $at $xmax $at]]
526	$g marker configure $id -element $elem
527	$g marker bind $id <Enter> \
528	[itcl::code $this EnterMarker $g $label $at $xmin $at]
529	$g marker bind $id <Leave> \
530	[itcl::code $this LeaveMarker $g $label]
531	set options [GetLineMarkerOptions $style]
532	if { $options != "" } {
533	eval $g marker configure $id $options
534	}
535	if { $label != "" } {
536	set id [$g marker create text -anchor se \
537	-text $label -coords [list $xmax $at]]
538	$g marker configure $id -element $elem
539	set options [GetTextMarkerOptions $style]
540	if { $options != "" } {
541	eval $g marker configure $id $options
542	}
543	}
544	}
545	}
546
547	# ----------------------------------------------------------------------
548	# USAGE: Rebuild
549	#
550	# Called automatically whenever something changes that affects the
551	# data in the widget. Clears any existing data and rebuilds the
552	# widget to display new data.
553	# ----------------------------------------------------------------------
554	itcl::body Rappture::XyResult::Rebuild {} {
555	ResetLegend
556	# Fix raise/lower elements
557	}
558
559	# ----------------------------------------------------------------------
560	# USAGE: ResetLimits
561	#
562	# Used internally to apply automatic limits to the axes for the
563	# current plot.
564	# ----------------------------------------------------------------------
565	itcl::body Rappture::XyResult::ResetLimits {} {
566	set g $itk_component(plot)
567
568	foreach axis [$g axis names] {
569	$g axis configure $axis -min "" -max ""
570	}
571	}
572
573	# ----------------------------------------------------------------------
574	# USAGE: ResetLegend
575	#
576	# Used internally to apply automatic limits to the axes for the
577	# current plot.
578	# ----------------------------------------------------------------------
579	itcl::body Rappture::XyResult::ResetLegend {} {
580	update idletasks
581
582	set g $itk_component(plot)
583	# Fix duplicate labels by appending the simulation number
584	# Collect the labels from all the viewable elements.
585	set above {}
586	set below {}
587	foreach elem $_viewable {
588	foreach {dataobj cname} [split $_elem2comp($elem) -] break
589	set label [$dataobj hints label]
590	lappend label2elem($label) $elem
591	if { $_dataobj2raise($dataobj) } {
592	lappend $g element raise $elem
593	}
594	}
595	# Then relabel elements with the same label, using the simulation number.
596	foreach label [array names label2elem] {
597	foreach elem $label2elem($label) {
598	if { [llength $label2elem($label)] == 1 } {
599	$g element configure $elem -label $label
600	continue
601	}
602	foreach {dataobj cname} [split $_elem2comp($elem) -] break
603	set sim $_dataobj2sim($dataobj)
604	set elabel [format "%s \#%d" $label $sim]
605	$g element configure $elem -label $elabel
606	}
607	}
608	$itk_component(legend) reset $_viewable
609	}
610
611
612	# ----------------------------------------------------------------------
613	# USAGE: Zoom reset
614	#
615	# Called automatically when the user clicks on one of the zoom
616	# controls for this widget. Changes the zoom for the current view.
617	# ----------------------------------------------------------------------
618	itcl::body Rappture::XyResult::Zoom {option args} {
619	switch -- $option {
620	reset {
621	ResetLimits
622	Rappture::Logger::log curve zoom -reset
623	}
624	}
625	}
626
627	# ----------------------------------------------------------------------
628	# USAGE: Hilite <state> <x> <y>
629	#
630	# Called automatically when the user brushes one of the elements
631	# on the plot. Causes the element to highlight and a tooltip to
632	# pop up with element info.
633	# ----------------------------------------------------------------------
634	itcl::body Rappture::XyResult::Hilite {state x y} {
635	set g $itk_component(plot)
636	set elem ""
637
638	# Peek inside of Blt_ZoomStack package to see if we're currently in the
639	# middle of a zoom selection.
640	if {[info exists ::zoomInfo($g,corner)] && $::zoomInfo($g,corner) == "B" } {
641	return;
642	}
643	set tip ""
644	if {$state == "at"} {
645	if {[$g element closest $x $y info -interpolate yes]} {
646	# for dealing with xy line plots
647	set elem $info(name)
648
649	set mapx [$g element cget $elem -mapx]
650	set mapy [$g element cget $elem -mapy]
651
652	# search again for an exact point -- this time don't interpolate
653	set tip ""
654	array unset info
655	if {[$g element closest $x $y info -interpolate no]
656	&& $info(name) == $elem} {
657
658	set x [$g axis transform $mapx $info(x)]
659	set y [$g axis transform $mapy $info(y)]
660	if {[info exists _elem2comp($elem)]} {
661	foreach {dataobj cname} [split $_elem2comp($elem) -] break
662	set yunits [$dataobj hints yunits]
663	set xunits [$dataobj hints xunits]
664	} else {
665	set xunits ""
666	set yunits ""
667	}
668	set tip [$g element cget $elem -label]
669	set yval [GetFormattedValue y $g $info(y)]
670	append tip "\n$yval$yunits"
671	set xval [GetFormattedValue x $g $info(x)]
672	append tip " @ $xval$xunits"
673	set tip [string trim $tip]
674	}
675	set state 1
676	} elseif {[$g element closest $x $y info -interpolate no]} {
677	# for dealing with xy scatter plot
678	set elem $info(name)
679
680	set mapx [$g element cget $elem -mapx]
681	set mapy [$g element cget $elem -mapy]
682
683	set tip ""
684	set x [$g axis transform $mapx $info(x)]
685	set y [$g axis transform $mapy $info(y)]
686
687	if {[info exists _elem2comp($elem)]} {
688	foreach {dataobj cname} [split $_elem2comp($elem) -] break
689	set yunits [$dataobj hints yunits]
690	set xunits [$dataobj hints xunits]
691	} else {
692	set xunits ""
693	set yunits ""
694	}
695	set tip [$g element cget $elem -label]
696	set yval [GetFormattedValue y $g $info(y)]
697	append tip "\n$yval$yunits"
698	set xval [GetFormattedValue x $g $info(x)]
699	append tip " @ $xval$xunits"
700	set tip [string trim $tip]
701	set state 1
702	} else {
703	set state 0
704	}
705	}
706
707	if {$state} {
708	#
709	# Highlight ON:
710	# - activate trace
711	# - multiple axes? dim other axes
712	# - pop up tooltip about data
713	#
714	if { [$g element exists $_hilite(elem)] && $_hilite(elem) != $elem } {
715	$g element deactivate $_hilite(elem)
716	$g crosshairs configure -hide yes
717	Rappture::Tooltip::tooltip cancel
718	}
719	$g element activate $elem
720	set _hilite(elem) $elem
721
722	set mapx [$g element cget $elem -mapx]
723	set mapy [$g element cget $elem -mapy]
724	if {[info exists _elem2comp($elem)]} {
725	foreach {dataobj cname} [split $_elem2comp($elem) -] break
726	foreach {mapx mapy} [GetAxes $dataobj] break
727	}
728	set allx [$g x2axis use]
729	if {[llength $allx] > 0} {
730	lappend allx x ; # fix main x-axis too
731	foreach axis $allx {
732	if {$axis == $mapx} {
733	$g axis configure $axis -color $itk_option(-foreground) \
734	-titlecolor $itk_option(-foreground)
735	} else {
736	$g axis configure $axis -color $itk_option(-dimcolor) \
737	-titlecolor $itk_option(-dimcolor)
738	}
739	}
740	}
741	set ally [$g y2axis use]
742	if {[llength $ally] > 0} {
743	lappend ally y ; # fix main y-axis too
744	foreach axis $ally {
745	if {$axis == $mapy} {
746	$g axis configure $axis -color $itk_option(-foreground) \
747	-titlecolor $itk_option(-foreground)
748	} else {
749	$g axis configure $axis -color $itk_option(-dimcolor) \
750	-titlecolor $itk_option(-dimcolor)
751	}
752	}
753	}
754	if {"" != $tip} {
755	$g crosshairs configure -hide no -position @$x,$y
756
757	if {$x > 0.5*[winfo width $g]} {
758	if {$x < 4} {
759	set tipx "-0"
760	} else {
761	set tipx "-[expr {$x-20}]" ;# move tooltip to the left
762	}
763	} else {
764	if {$x < -4} {
765	set tipx "+0"
766	} else {
767	set tipx "+[expr {$x+20}]" ;# move tooltip to the right
768	}
769	}
770	if {$y > 0.5*[winfo height $g]} {
771	if {$y < 4} {
772	set tipy "-0"
773	} else {
774	set tipy "-[expr {$y-20}]" ;# move tooltip to the top
775	}
776	} else {
777	if {$y < -4} {
778	set tipy "+0"
779	} else {
780	set tipy "+[expr {$y+20}]" ;# move tooltip to the bottom
781	}
782	}
783	Rappture::Tooltip::text $g $tip
784	Rappture::Tooltip::tooltip show $g $tipx,$tipy
785	Rappture::Logger::log tooltip -for "curve probe -- [string map [list \n " // "] $tip]"
786	}
787	} else {
788	#
789	# Highlight OFF:
790	# - deactivate (color back to normal)
791	# - put all axes back to normal color
792	# - take down tooltip
793	#
794	if { [$g element exists $_hilite(elem)] } {
795	$g element deactivate $_hilite(elem)
796	}
797	set allx [$g x2axis use]
798	if {[llength $allx] > 0} {
799	lappend allx x ;# fix main x-axis too
800	foreach axis $allx {
801	$g axis configure $axis -color $itk_option(-foreground) \
802	-titlecolor $itk_option(-foreground)
803	}
804	}
805
806	set ally [$g y2axis use]
807	if {[llength $ally] > 0} {
808	lappend ally y ;# fix main y-axis too
809	foreach axis $ally {
810	$g axis configure $axis -color $itk_option(-foreground) \
811	-titlecolor $itk_option(-foreground)
812	}
813	}
814
815	$g crosshairs configure -hide yes
816
817	# only cancel in plotting area or we'll mess up axes
818	if {[$g inside $x $y]} {
819	Rappture::Tooltip::tooltip cancel
820	}
821
822	# There is no currently highlighted element
823	set _hilite(elem) ""
824	}
825	}
826
827	# ----------------------------------------------------------------------
828	# USAGE: Axis hilite <axis> <state>
829	#
830	# USAGE: Axis click <axis> <x> <y>
831	# USAGE: Axis drag <axis> <x> <y>
832	# USAGE: Axis release <axis> <x> <y>
833	#
834	# Used internally to handle editing of the x/y axes. The hilite
835	# operation causes the axis to light up. The edit operation pops
836	# up a panel with editing options. The changed operation applies
837	# changes from the panel.
838	# ----------------------------------------------------------------------
839	itcl::body Rappture::XyResult::Axis {option args} {
840	switch -- $option {
841	hilite {
842	if {[llength $args] != 2} {
843	error "wrong # args: should be \"Axis hilite axis state\""
844	}
845	set g $itk_component(plot)
846	set axis [lindex $args 0]
847	set state [lindex $args 1]
848
849	if {$state} {
850	$g axis configure $axis \
851	-color $itk_option(-activecolor) \
852	-titlecolor $itk_option(-activecolor)
853
854	set x [expr {[winfo pointerx $g]+4}]
855	set y [expr {[winfo pointery $g]+4}]
856	Rappture::Tooltip::tooltip pending $g-$axis @$x,$y
857	} else {
858	$g axis configure $axis \
859	-color $itk_option(-foreground) \
860	-titlecolor $itk_option(-foreground)
861	Rappture::Tooltip::tooltip cancel
862	}
863	}
864	click {
865	if {[llength $args] != 3} {
866	error "wrong # args: should be \"Axis click axis x y\""
867	}
868	set axis [lindex $args 0]
869	set x [lindex $args 1]
870	set y [lindex $args 2]
871	set g $itk_component(plot)
872
873	set _axis(moved) 0
874	set _axis(click-x) $x
875	set _axis(click-y) $y
876	foreach {min max} [$g axis limits $axis] break
877	set _axis(min0) $min
878	set _axis(max0) $max
879	Rappture::Tooltip::tooltip cancel
880	}
881	drag {
882	if {[llength $args] != 3} {
883	error "wrong # args: should be \"Axis drag axis x y\""
884	}
885	if {![info exists _axis(moved)]} {
886	return ;# must have skipped click event -- ignore
887	}
888	set axis [lindex $args 0]
889	set x [lindex $args 1]
890	set y [lindex $args 2]
891	set g $itk_component(plot)
892
893	if {[info exists _axis(click-x)] && [info exists _axis(click-y)]} {
894	foreach {x0 y0 pw ph} [$g extents plotarea] break
895	switch -glob $axis {
896	x* {
897	set pix $x
898	set pix0 $_axis(click-x)
899	set pixmin $x0
900	set pixmax [expr {$x0+$pw}]
901	}
902	y* {
903	set pix $y
904	set pix0 $_axis(click-y)
905	set pixmin [expr {$y0+$ph}]
906	set pixmax $y0
907	}
908	}
909	set log [$g axis cget $axis -logscale]
910	set min $_axis(min0)
911	set max $_axis(max0)
912	set dpix [expr {abs($pix-$pix0)}]
913	set v0 [$g axis invtransform $axis $pixmin]
914	set v1 [$g axis invtransform $axis [expr {$pixmin+$dpix}]]
915	if {$log} {
916	set v0 [expr {log10($v0)}]
917	set v1 [expr {log10($v1)}]
918	set min [expr {log10($min)}]
919	set max [expr {log10($max)}]
920	}
921
922	if {$pix > $pix0} {
923	set delta [expr {$v1-$v0}]
924	} else {
925	set delta [expr {$v0-$v1}]
926	}
927	set min [expr {$min-$delta}]
928	set max [expr {$max-$delta}]
929	if {$log} {
930	set min [expr {pow(10.0,$min)}]
931	set max [expr {pow(10.0,$max)}]
932	}
933	$g axis configure $axis -min $min -max $max
934
935	# move axis, don't edit on release
936	set _axis(move) 1
937	}
938	}
939	release {
940	if {[llength $args] != 3} {
941	error "wrong # args: should be \"Axis release axis x y\""
942	}
943	if {![info exists _axis(moved)]} {
944	return ;# must have skipped click event -- ignore
945	}
946	set axis [lindex $args 0]
947	set x [lindex $args 1]
948	set y [lindex $args 2]
949
950	if {!$_axis(moved)} {
951	# small movement? then treat as click -- pop up axis editor
952	set dx [expr {abs($x-$_axis(click-x))}]
953	set dy [expr {abs($y-$_axis(click-y))}]
954	if {$dx < 2 && $dy < 2} {
955	ShowAxisPopup $axis
956	return
957	}
958	}
959	# one last movement
960	Axis drag $axis $x $y
961
962	# log this change
963	Rappture::Logger::log curve axis $axis \
964	-drag [$itk_component(plot) axis limits $axis]
965
966	catch {unset _axis}
967	}
968	default {
969	error "bad option \"$option\": should be hilite"
970	}
971	}
972	}
973
974
975	# ----------------------------------------------------------------------
976	# USAGE: GetLineMarkerOptions <style>
977	#
978	# Used internally to create a list of configuration options specific to the
979	# axis line marker. The input is a list of name value pairs. Options that
980	# are not recognized are ignored.
981	# ----------------------------------------------------------------------
982	itcl::body Rappture::XyResult::GetLineMarkerOptions {style} {
983	array set lineOptions {
984	"-color" "-outline"
985	"-dashes" "-dashes"
986	"-linecolor" "-outline"
987	"-linewidth" "-linewidth"
988	}
989	set options {}
990	foreach {name value} $style {
991	if { [info exists lineOptions($name)] } {
992	lappend options $lineOptions($name) $value
993	}
994	}
995	return $options
996	}
997
998	# ----------------------------------------------------------------------
999	# USAGE: GetTextMarkerOptions <style>
1000	#
1001	# Used internally to create a list of configuration options specific to the
1002	# axis text marker. The input is a list of name value pairs. Options that
1003	# are not recognized are ignored.
1004	# ----------------------------------------------------------------------
1005	itcl::body Rappture::XyResult::GetTextMarkerOptions {style} {
1006	array set textOptions {
1007	"-color" "-outline"
1008	"-textcolor" "-outline"
1009	"-font" "-font"
1010	"-xoffset" "-xoffset"
1011	"-yoffset" "-yoffset"
1012	"-anchor" "-anchor"
1013	"-rotate" "-rotate"
1014	}
1015	set options {}
1016	foreach {name value} $style {
1017	if { [info exists textOptions($name)] } {
1018	lappend options $textOptions($name) $value
1019	}
1020	}
1021	return $options
1022	}
1023
1024	# ----------------------------------------------------------------------
1025	# USAGE: GetAxes <dataobj>
1026	#
1027	# Used internally to figure out the axes used to plot the given
1028	# <dataobj>. Returns a list of the form {x y}, where x is the
1029	# x-axis name (x, x2, x3, etc.), and y is the y-axis name.
1030	# ----------------------------------------------------------------------
1031	itcl::body Rappture::XyResult::GetAxes {dataobj} {
1032	set xlabel [$dataobj hints xlabel]
1033	if {[info exists _label2axis($xlabel)]} {
1034	set mapx $_label2axis($xlabel)
1035	} else {
1036	set mapx "x"
1037	}
1038
1039	set ylabel [$dataobj hints ylabel]
1040	if {[info exists _label2axis($ylabel)]} {
1041	set mapy $_label2axis($ylabel)
1042	} else {
1043	set mapy "y"
1044	}
1045	return [list $mapx $mapy]
1046	}
1047
1048	# ----------------------------------------------------------------------
1049	# CONFIGURATION OPTION: -gridcolor
1050	# ----------------------------------------------------------------------
1051	itcl::configbody Rappture::XyResult::gridcolor {
1052	if {"" == $itk_option(-gridcolor)} {
1053	$itk_component(plot) grid off
1054	} else {
1055	$itk_component(plot) grid configure -color $itk_option(-gridcolor)
1056	$itk_component(plot) grid on
1057	}
1058	}
1059
1060	# ----------------------------------------------------------------------
1061	# CONFIGURATION OPTION: -autocolors
1062	# ----------------------------------------------------------------------
1063	itcl::configbody Rappture::XyResult::autocolors {
1064	foreach c $itk_option(-autocolors) {
1065	if {[catch {winfo rgb $itk_component(hull) $c}]} {
1066	error "bad color \"$c\""
1067	}
1068	}
1069	incr _nextColorIndex
1070	if {$_nextColorIndex >= [llength $itk_option(-autocolors)]} {
1071	set _nextColorIndex 0
1072	}
1073	}
1074
1075	itcl::body Rappture::XyResult::EnterMarker { g name x y text } {
1076	LeaveMarker $g $name
1077	set id [$g marker create text \
1078	-coords [list $x $y] \
1079	-yoffset -1 \
1080	-anchor s \
1081	-text $text]
1082	set _markers($name) $id
1083	}
1084
1085	itcl::body Rappture::XyResult::LeaveMarker { g name } {
1086	if { [info exists _markers($name)] } {
1087	set id $_markers($name)
1088	$g marker delete $id
1089	unset _markers($name)
1090	}
1091	}
1092
1093	#
1094	# SetAxis --
1095	#
1096	# Configures the graph axis with the designated setting using
1097	# the currently stored value. User-configurable axis settings
1098	# are stored in the _axisPopup variable or in the widgets. This
1099	# routine syncs the graph with that setting.
1100	#
1101	itcl::body Rappture::XyResult::SetAxis { setting } {
1102	set g $itk_component(plot)
1103	set axis $_axisPopup(axis)
1104	switch -- $setting {
1105	"logscale" {
1106	set bool $_axisPopup(logscale)
1107	$g axis configure $axis -logscale $bool
1108	}
1109	"loose" {
1110	set bool $_axisPopup(loose)
1111	$g axis configure $axis -loose $bool
1112	}
1113	"range" {
1114	set auto $_axisPopup(auto)
1115	set _axisPopup($axis-auto) $auto
1116	if { $auto } {
1117	# Set the axis range automatically
1118	$g axis configure $axis -min "" -max ""
1119	} else {
1120	# Set the axis range from the entry values.
1121	set label $_axisPopup(label)
1122	set min $_axisPopup(${label}-min)
1123	set max $_axisPopup(${label}-max)
1124	$g axis configure $axis -min $min -max $max
1125	}
1126	SetAxisRangeState $axis
1127	}
1128	"format" {
1129	set inner [$itk_component(hull).axes component inner]
1130	set format [$inner.format translate [$inner.format value]]
1131	set _axisPopup($axis-format) $format
1132
1133	# Force the graph to reformat the ticks
1134	set min [$itk_component(plot) axis cget $axis -min]
1135	$g axis configure $axis -min $min
1136	}
1137	"label" {
1138	set label $_axisPopup(label)
1139	$g axis configure $axis -title $label
1140	}
1141	"min" {
1142	set min $_axisPopup(min)
1143	if { [catch { $g axis configure $axis -min $min } msg] != 0 } {
1144	set inner [$itk_component(hull).axes component inner]
1145	Rappture::Tooltip::cue $inner.max $msg
1146	bell
1147	return
1148	}
1149	set label $_axisPopup(label)
1150	set _axisPopup(${label}-min) $min
1151	}
1152	"max" {
1153	set max $_axisPopup(max)
1154	if { [catch { $g axis configure $axis -max $max } msg] != 0 } {
1155	set inner [$itk_component(hull).axes component inner]
1156	Rappture::Tooltip::cue $inner.max $msg
1157	bell
1158	return
1159	}
1160	set label $_axisPopup(label)
1161	set _axisPopup(${label}-max) $max
1162	}
1163	}
1164	}
1165
1166	#
1167	# SetAxisRangeState --
1168	#
1169	# Sets the state of widgets controlling the axis range based
1170	# upon whether the automatic or manual setting. If the
1171	# axis is configure to be automatic, the manual setting widgets
1172	# are disabled. And vesa-versa the automatic setting widgets
1173	# are dsiabled if the axis is manual.
1174	#
1175	itcl::body Rappture::XyResult::SetAxisRangeState { axis } {
1176	set inner [$itk_component(hull).axes component inner]
1177	set g $itk_component(plot)
1178
1179	if { $_axisPopup(auto) } {
1180	foreach {min max} [$g axis limits $axis] break
1181	$inner.minl configure -state disabled
1182	$inner.min configure -state disabled
1183	$inner.maxl configure -state disabled
1184	$inner.max configure -state disabled
1185	$inner.loose configure -state normal
1186	$inner.tight configure -state normal
1187	} else {
1188	foreach {min max} [$g axis limits $axis] break
1189	$inner.minl configure -state normal
1190	$inner.min configure -state normal
1191	set _axisPopup(min) [$g axis cget $axis -min]
1192	$inner.maxl configure -state normal
1193	$inner.max configure -state normal
1194	set _axisPopup(max) [$g axis cget $axis -max]
1195	$inner.loose configure -state disabled
1196	$inner.tight configure -state disabled
1197	}
1198	}
1199
1200	#
1201	# BuildAxisPopup --
1202	#
1203	# Creates the popup balloon dialog for axes. This routine is
1204	# called only once the first time the user clicks to bring up
1205	# an axis dialog. It is reused for all other axes.
1206	#
1207	itcl::body Rappture::XyResult::BuildAxisPopup { popup } {
1208	Rappture::Balloon $popup -title "Axis Options"
1209	set inner [$itk_component(hull).axes component inner]
1210
1211	label $inner.labell -text "Label:"
1212	entry $inner.label \
1213	-width 15 -highlightbackground $itk_option(-background) \
1214	-textvariable [itcl::scope _axisPopup(label)]
1215
1216	bind $inner.label <Return> [itcl::code $this SetAxis label]
1217	bind $inner.label <KP_Enter> [itcl::code $this SetAxis label]
1218	bind $inner.label <FocusOut> [itcl::code $this SetAxis label]
1219
1220	label $inner.formatl -text "Format:"
1221	Rappture::Combobox $inner.format -width 15 -editable no
1222	$inner.format choices insert end \
1223	"%.6g" "Auto" \
1224	"%.0f" "X" \
1225	"%.1f" "X.X" \
1226	"%.2f" "X.XX" \
1227	"%.3f" "X.XXX" \
1228	"%.6f" "X.XXXXXX" \
1229	"%.1e" "X.Xe+XX" \
1230	"%.2e" "X.XXe+XX" \
1231	"%.3e" "X.XXXe+XX" \
1232	"%.6e" "X.XXXXXXe+XX"
1233
1234	bind $inner.format <<Value>> [itcl::code $this SetAxis format]
1235
1236	label $inner.rangel -text "Axis Range:"
1237	radiobutton $inner.auto -text "Automatic" \
1238	-variable [itcl::scope _axisPopup(auto)] -value 1 \
1239	-command [itcl::code $this SetAxis range]
1240	radiobutton $inner.manual -text "Manual" \
1241	-variable [itcl::scope _axisPopup(auto)] -value 0 \
1242	-command [itcl::code $this SetAxis range]
1243
1244	radiobutton $inner.loose -text "loose" \
1245	-variable [itcl::scope _axisPopup(loose)] -value 1 \
1246	-command [itcl::code $this SetAxis loose]
1247	radiobutton $inner.tight -text "tight" \
1248	-variable [itcl::scope _axisPopup(loose)] -value 0 \
1249	-command [itcl::code $this SetAxis loose]
1250
1251	label $inner.minl -text "min"
1252	entry $inner.min \
1253	-width 15 -highlightbackground $itk_option(-background) \
1254	-textvariable [itcl::scope _axisPopup(min)]
1255	bind $inner.min <Return> [itcl::code $this SetAxis min]
1256	bind $inner.min <KP_Enter> [itcl::code $this SetAxis min]
1257	bind $inner.min <FocusOut> [itcl::code $this SetAxis min]
1258
1259	label $inner.maxl -text "max"
1260	entry $inner.max \
1261	-width 15 -highlightbackground $itk_option(-background) \
1262	-textvariable [itcl::scope _axisPopup(max)]
1263	bind $inner.max <Return> [itcl::code $this SetAxis max]
1264	bind $inner.max <KP_Enter> [itcl::code $this SetAxis max]
1265	bind $inner.max <FocusOut> [itcl::code $this SetAxis max]
1266
1267
1268	label $inner.scalel -text "Scale:"
1269	radiobutton $inner.linear -text "linear" \
1270	-variable [itcl::scope _axisPopup(logscale)] -value 0 \
1271	-command [itcl::code $this SetAxis logscale]
1272	radiobutton $inner.log -text "logarithmic" \
1273	-variable [itcl::scope _axisPopup(logscale)] -value 1 \
1274	-command [itcl::code $this SetAxis logscale]
1275
1276	blt::table $inner \
1277	0,0 $inner.labell -anchor w \
1278	0,1 $inner.label -anchor w -fill x -cspan 3 \
1279	1,0 $inner.formatl -anchor w \
1280	1,1 $inner.format -anchor w -fill x -cspan 3 \
1281	2,0 $inner.scalel -anchor w \
1282	2,2 $inner.linear -anchor w \
1283	2,3 $inner.log -anchor w \
1284	3,0 $inner.rangel -anchor w \
1285	4,0 $inner.manual -anchor w -padx 4 \
1286	4,2 $inner.minl -anchor e \
1287	4,3 $inner.min -anchor w \
1288	5,2 $inner.maxl -anchor e \
1289	5,3 $inner.max -anchor w \
1290	6,0 $inner.auto -anchor w -padx 4 \
1291	6,2 $inner.tight -anchor w \
1292	6,3 $inner.loose -anchor w \
1293
1294
1295	blt::table configure $inner r2 -pady 4
1296	blt::table configure $inner c1 -width 20
1297	update
1298	}
1299
1300	#
1301	# ShowAxisPopup --
1302	#
1303	# Displays the axis dialog for an axis. It initializes the
1304	# _axisInfo variables for that axis if necessary.
1305	#
1306	itcl::body Rappture::XyResult::ShowAxisPopup { axis } {
1307	set g $itk_component(plot)
1308	set popup $itk_component(hull).axes
1309
1310	if { ![winfo exists $popup] } {
1311	BuildAxisPopup $popup
1312	}
1313	set _axisPopup(axis) $axis
1314	set _axisPopup(label) [$g axis cget $axis -title]
1315	set _axisPopup(logscale) [$g axis cget $axis -logscale]
1316	set _axisPopup(loose) [$g axis cget $axis -loose]
1317	if { ![info exists _axisPopup($axis-format)] } {
1318	set inner [$itk_component(hull).axes component inner]
1319	set _axisPopup($axis-format) "%.6g"
1320	set fmts [$inner.format choices get -value]
1321	set i [lsearch -exact $fmts $_axisPopup($axis-format)]
1322	if {$i < 0} { set i 0 } ;# use Auto choice
1323	$inner.format value [$inner.format choices get -label $i]
1324	}
1325	foreach {min max} [$g axis limits $axis] break
1326	if { $_axisPopup(logscale) } {
1327	set type "log"
1328	} else {
1329	set type "lin"
1330	}
1331	set amin ""
1332	set label $_axisPopup(label)
1333	if { [info exists _limits(${label}-min)] } {
1334	set amin $_limits(${label}-min)
1335	}
1336	set amax ""
1337	if { [info exists _limits(${label}-max)] } {
1338	set amax $_limits(${label}-max)
1339	}
1340	set auto 1
1341	if { $amin != "" \|\| $amax != "" } {
1342	set auto 0
1343	}
1344	if { ![info exists _axisPopup($axis-auto)] } {
1345	set _axisPopup($axis-auto) $auto;# Defaults to automatic
1346	}
1347	set _axisPopup(auto) $_axisPopup($axis-auto)
1348	SetAxisRangeState $axis
1349	if { ![info exists _axisPopup(${label}-min)] } {
1350	if { $amin != "" } {
1351	set _axisPopup(${label}-min) $amin
1352	set _axisPopup(min) $_axisPopup(${label}-min)
1353	SetAxis min
1354	} else {
1355	set _axisPopup(${label}-min) $min
1356	}
1357	}
1358	if { ![info exists _axisPopup(${label}-max)] } {
1359	if { $amax != "" } {
1360	set _axisPopup(${label}-max) $amax
1361	set _axisPopup(max) $_axisPopup(${label}-max)
1362	SetAxis max
1363	} else {
1364	set _axisPopup(${label}-max) $max
1365	}
1366	}
1367	set _axisPopup(min) $_axisPopup(${label}-min)
1368	set _axisPopup(max) $_axisPopup(${label}-max)
1369	set _axisPopup(axis) $axis
1370
1371	#
1372	# Figure out where the window should pop up.
1373	#
1374	set x [winfo rootx $g]
1375	set y [winfo rooty $g]
1376	set w [winfo width $g]
1377	set h [winfo height $g]
1378	foreach {x0 y0 pw ph} [$g extents plotarea] break
1379	switch -glob -- $axis {
1380	x {
1381	set x [expr {round($x + $x0+0.5*$pw)}]
1382	set y [expr {round($y + $y0+$ph + 0.5*($h-$y0-$ph))}]
1383	set dir "above"
1384	}
1385	x* {
1386	set x [expr {round($x + $x0+0.5*$pw)}]
1387	set dir "below"
1388	set allx [$itk_component(plot) x2axis use]
1389	set max [llength $allx]
1390	set i [lsearch -exact $allx $axis]
1391	set y [expr {round($y + ($i+0.5)*$y0/double($max))}]
1392	}
1393	y {
1394	set x [expr {round($x + 0.5*$x0)}]
1395	set y [expr {round($y + $y0+0.5*$ph)}]
1396	set dir "right"
1397	}
1398	y* {
1399	set y [expr {round($y + $y0+0.5*$ph)}]
1400	set dir "left"
1401	set ally [$g y2axis use]
1402	set max [llength $ally]
1403	set i [lsearch -exact $ally $axis]
1404	set y [expr {round($y + ($i+0.5)*$y0/double($max))}]
1405	set x [expr {round($x+$x0+$pw + ($i+0.5)*($w-$x0-$pw)/double($max))}]
1406	}
1407	}
1408	$popup activate @$x,$y $dir
1409	}
1410
1411	#
1412	# GetFormattedValue --
1413	#
1414	# Callback routine for the axis format procedure. It formats the
1415	# axis tick label according to the selected format. This routine
1416	# is also used to format tooltip values.
1417	#
1418	itcl::body Rappture::XyResult::GetFormattedValue { axis g value } {
1419	if { [$g axis cget $axis -logscale] \|\|
1420	![info exists _axisPopup($axis-format)] } {
1421	set fmt "%.6g"
1422	} else {
1423	set fmt $_axisPopup($axis-format)
1424	}
1425	return [format $fmt $value]
1426	}
1427
1428
1429	#
1430	# BuildGraph --
1431	#
1432	# This procedure loads each data objects specified into the
1433	# graph. The data object may already be loaded (from the "add"
1434	# method which gets called first). The graph elements that
1435	# are created, are hidden. This allows the graph to account
1436	# for all datasets, even those not currently being displayed.
1437	#
1438	itcl::body Rappture::XyResult::BuildGraph { dlist } {
1439	set g $itk_component(plot)
1440
1441	foreach label [array names _label2axis] {
1442	set axis $_label2axis($label)
1443	switch -- $axis {
1444	"x" - "x2" - "y" - "y2" {
1445	$g axis configure $axis -hide yes -checklimits no
1446	}
1447	default {
1448	$g axis delete $axis
1449	}
1450	}
1451	}
1452	array unset _label2axis
1453	array unset _limits
1454
1455	# Scan through all objects and create a list of all axes.
1456	# The first x-axis gets mapped to "x". The second, to "x2".
1457	# Beyond that, we must create new axes "x3", "x4", etc.
1458	# We do the same for y.
1459
1460	set anum(x) 0
1461	set anum(y) 0
1462	foreach dataobj $dlist {
1463	foreach axis {x y} {
1464	set label [$dataobj hints ${axis}label]
1465	if { $label == "" } {
1466	continue
1467	}
1468	# Collect the limits (if set for the axis)
1469	set min [$dataobj hints ${axis}min]
1470	set max [$dataobj hints ${axis}max]
1471	set tag ${label}-min
1472	if { $min != "" && ( ![info exists _limits($tag)] \|\|
1473	$_limits($tag) > $min ) } {
1474	set _limits($tag) $min
1475	}
1476	set tag ${label}-max
1477	if { $max != "" && (![info exists _limits($tag)] \|\|
1478	$_limits($tag) < $max) } {
1479	set _limits($tag) $max
1480	}
1481	if { [$dataobj hints ${axis}scale] == "log" } {
1482	set tag ${label}-log
1483	set _limits($tag) 1
1484	}
1485	if { ![info exists _label2axis($label)] } {
1486	switch [incr anum($axis)] {
1487	1 { set axisName $axis }
1488	2 { set axisName ${axis}2 }
1489	default {
1490	set axis $axis$anum($axis)
1491	catch {$g axis create $axisName}
1492	}
1493	}
1494	$g axis configure $axisName -title $label -hide no \
1495	-checklimits no -showticks yes
1496	set _label2axis($label) $axisName
1497
1498	# If this axis has a description, add it as a tooltip
1499	set desc [string trim [$dataobj hints ${axis}desc]]
1500	Rappture::Tooltip::text $g-$axisName $desc
1501	}
1502	}
1503	}
1504	# Next, set the axes based on what we've found.
1505	foreach label [array names _label2axis] {
1506	set logscale [info exists _limits(${label}-log)]
1507	set amin ""
1508	if { [info exists _limits(${label}-min)] } {
1509	set amin $_limits(${label}-min)
1510	}
1511	set amax ""
1512	if { [info exists _limits(${label}-max)] } {
1513	set amax $_limits(${label}-max)
1514	}
1515	set axis $_label2axis($label)
1516	$g axis configure $axis \
1517	-hide no -checklimits no \
1518	-command [itcl::code $this GetFormattedValue $axis] \
1519	-min $amin -max $amax -logscale $logscale
1520	$g axis bind $axis <Enter> \
1521	[itcl::code $this Axis hilite $axis on]
1522	$g axis bind $axis <Leave> \
1523	[itcl::code $this Axis hilite $axis off]
1524	$g axis bind $axis <ButtonPress-1> \
1525	[itcl::code $this Axis click $axis %x %y]
1526	$g axis bind $axis <B1-Motion> \
1527	[itcl::code $this Axis drag $axis %x %y]
1528	$g axis bind $axis <ButtonRelease-1> \
1529	[itcl::code $this Axis release $axis %x %y]
1530	$g axis bind $axis <KeyPress> \
1531	[list ::Rappture::Tooltip::tooltip cancel]
1532	}
1533
1534	foreach dataobj $dlist {
1535	SetElements $dataobj
1536	}
1537	ResetLegend
1538	}
1539
1540	#
1541	# SetElements --
1542	#
1543	# This procedure loads each data objects specified into the
1544	# graph. The data object may already be loaded (from the "add"
1545	# method which gets called first). The graph elements that
1546	# are created, are hidden. This allows the graph to account
1547	# for all datasets, even those not currently being displayed.
1548	#
1549	itcl::body Rappture::XyResult::SetElements { dataobj {settings ""} } {
1550	set g $itk_component(plot)
1551
1552	array set attrs [$dataobj hints style]
1553	array set attrs $settings
1554	set type [$dataobj hints type]
1555	if { $type == "" } {
1556	set type "line"
1557	}
1558
1559	# Now fix attributes to a more usable form for the graph.
1560
1561	# Convert -linestyle to BLT -dashes
1562	if { ![info exists attrs(-linestyle)] } {
1563	set dashes {}
1564	} else {
1565	switch -- $attrs(-linestyle) {
1566	dashed { set dashes {4 4} }
1567	dotted { set dashes {2 4} }
1568	default { set dashes {} }
1569	}
1570	}
1571	if { ![info exists attrs(-barwidth)] } {
1572	set barwidth 1.0
1573	} else {
1574	set barwidth $attrs(-barwidth)
1575	}
1576	if { ![info exists attrs(-width)] } {
1577	set linewidth 1
1578	} else {
1579	set linewidth $attrs(-width)
1580	}
1581	set _dataobj2raise($dataobj) [info exists attrs(-raise)]
1582	if { ![info exists attrs(-simulation)] } {
1583	set sim 0
1584	} else {
1585	set sim $attrs(-simulation)
1586	}
1587	set _dataobj2sim($dataobj) $sim
1588
1589	foreach {mapx mapy} [GetAxes $dataobj] break
1590	set label [$dataobj hints label]
1591
1592	foreach cname [$dataobj components] {
1593	set tag $dataobj-$cname
1594	set xv [$dataobj mesh $cname]
1595	set yv [$dataobj values $cname]
1596	set xev [$dataobj xErrorValues $cname]
1597	set yev [$dataobj yErrorValues $cname]
1598	if {([$xv length] <= 1) \|\| ($linewidth == 0)} {
1599	set sym square
1600	set pixels 2
1601	} else {
1602	set sym ""
1603	set pixels 6
1604	}
1605	if { ![info exists _comp2elem($tag)] } {
1606	set elem "$type[incr _nextElement]"
1607	set _elem2comp($elem) $tag
1608	set _comp2elem($tag) $elem
1609	set found($_comp2elem($tag)) 1
1610	lappend label2elem($label) $elem
1611	switch -- $type {
1612	"line" {
1613	$g line create $elem \
1614	-x $xv -y $yv \
1615	-symbol $sym \
1616	-pixels $pixels \
1617	-linewidth $linewidth \
1618	-label $label \
1619	-dashes $dashes \
1620	-mapx $mapx \
1621	-mapy $mapy \
1622	-hide yes \
1623	-xerror $xev -yerror $yev
1624	}
1625	"scatter" {
1626	$g line create $elem \
1627	-x $xv -y $yv \
1628	-symbol square \
1629	-pixels 2 \
1630	-linewidth 0 \
1631	-label $label \
1632	-dashes $dashes \
1633	-mapx $mapx \
1634	-mapy $mapy \
1635	-hide yes \
1636	-xerror $xev -yerror $yev
1637	}
1638	"bar" {
1639	$g bar create $elem \
1640	-x $xv -y $yv \
1641	-barwidth $barwidth \
1642	-label $label \
1643	-mapx $mapx \
1644	-mapy $mapy \
1645	-hide yes \
1646	-xerror $xev -yerror $yev
1647	}
1648	}
1649	} else {
1650	$g element configure $_comp2elem($tag) -mapx $mapx -mapy $mapy
1651	}
1652	}
1653	}

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