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source: trunk/gui/scripts/barchartresult.tcl @ 2790

Last change on this file since 2790 was 2762, checked in by gah, 12 years ago
fix for right-click in streamlines viewer, about command now uses path to find rappture.
File size: 57.4 KB

Line
1
2	# ----------------------------------------------------------------------
3	# COMPONENT: barchartresult - 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 dataobjs showing on the plot.
8	# ======================================================================
9	# AUTHOR: Michael McLennan, Purdue University
10	# Copyright (c) 2004-2005 Purdue Research Foundation
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 *BarchartResult.width 3i widgetDefault
19	option add *BarchartResult.height 3i widgetDefault
20	option add *BarchartResult.gridColor #d9d9d9 widgetDefault
21	option add *BarchartResult.activeColor blue widgetDefault
22	option add *BarchartResult.dimColor gray widgetDefault
23	# Don't let the step size default to 1.0 (for barcharts)
24	option add BarchartResultx.loose 0 widgetDefault
25	option add BarchartResulty.loose 1 widgetDefault
26	option add BarchartResultx.stepSize 0.0 widgetDefault
27	option add *BarchartResult.controlBackground gray widgetDefault
28	option add *BarchartResult.font \
29	--helvetica-medium-r-normal--12-* widgetDefault
30
31	set autocolors {
32	#0000ff #ff0000 #00cc00
33	#cc00cc #ff9900 #cccc00
34	#000080 #800000 #006600
35	#660066 #996600 #666600
36	}
37	set autocolors {
38	#0000cd
39	#cd0000
40	#00cd00
41	#3a5fcd
42	#cdcd00
43	#cd1076
44	#009acd
45	#00c5cd
46	#a2b5cd
47	#7ac5cd
48	#66cdaa
49	#a2cd5a
50	#cd9b9b
51	#cdba96
52	#cd3333
53	#cd6600
54	#cd8c95
55	#cd00cd
56	#9a32cd
57	#6ca6cd
58	#9ac0cd
59	#9bcd9b
60	#00cd66
61	#cdc673
62	#cdad00
63	#cd5555
64	#cd853f
65	#cd7054
66	#cd5b45
67	#cd6889
68	#cd69c9
69	#551a8b
70	}
71
72	option add *BarchartResult.autoColors $autocolors widgetDefault
73	option add BarchartResultBalloon*Entry.background white widgetDefault
74
75	itcl::class Rappture::BarchartResult {
76	inherit itk::Widget
77
78	itk_option define -gridcolor gridColor GridColor ""
79	itk_option define -activecolor activeColor ActiveColor ""
80	itk_option define -dimcolor dimColor DimColor ""
81	itk_option define -autocolors autoColors AutoColors ""
82
83	constructor {args} {
84	# defined below
85	}
86	destructor {
87	# defined below
88	}
89	public method add {dataobj {settings ""}}
90	public method get {}
91	public method delete {args}
92	public method scale {args}
93	public method parameters {title args} {
94	# do nothing
95	}
96	public method download {option args}
97
98	protected method _rebuild {}
99	protected method _resetLimits {}
100	protected method _zoom {option args}
101	protected method _hilite {state x y}
102	protected method _axis {option args}
103	protected method _getAxes {dataobj}
104	protected method _getLineMarkerOptions { style }
105	protected method _getTextMarkerOptions { style }
106	protected method _enterMarker { g name x y text }
107	protected method _leaveMarker { g name }
108	private method _formatTickLabel { w value }
109
110	private variable _dispatcher "" ;# dispatcher for !events
111	private variable _dlist "" ;# list of dataobjs
112	private variable _dataobj2color ;# maps dataobj => plotting color
113	private variable _dataobj2width ;# maps dataobj => line width
114	private variable _dataobj2dashes ;# maps dataobj => BLT -dashes list
115	private variable _dataobj2raise ;# maps dataobj => raise flag 0/1
116	private variable _dataobj2desc ;# maps dataobj => description of data
117	private variable _elem2dataobj ;# maps graph element => dataobj
118	private variable _label2axis ;# maps axis label => axis ID
119	private variable _limits ;# axis limits: x-min, x-max, etc.
120	private variable _autoColorI 0 ;# index for next "-color auto"
121
122	private variable _hilite ;# info for element currently highlighted
123	private variable _axis ;# info for axis manipulations
124	private variable _axisPopup ;# info for axis being edited in popup
125	common _downloadPopup ;# download options from popup
126	private variable _markers
127	private variable _tickLabels
128	}
129
130	itk::usual BarchartResult {
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::BarchartResult::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::barchart $f.plot \
175	-highlightthickness 0 -plotpadx 0 -plotpady 0 \
176	-barmode aligned -rightmargin 1
177	} {
178	keep -background -foreground -cursor -font
179	}
180	pack $itk_component(plot) -expand yes -fill both
181
182	$itk_component(plot) pen configure activeBar \
183	-borderwidth 2 -foreground black -background red
184
185	# Add bindings so you can mouse over points to see values:
186	bind $itk_component(plot) <Motion> \
187	[itcl::code $this _hilite at %x %y]
188	bind $itk_component(plot) <Leave> \
189	[itcl::code $this _hilite off %x %y]
190
191	# Add support for editing axes:
192	Rappture::Balloon $itk_component(hull).axes -title "Axis Options"
193	set inner [$itk_component(hull).axes component inner]
194
195	label $inner.labell -text "Label:"
196	entry $inner.label -width 15 -highlightbackground $itk_option(-background)
197	grid $inner.labell -row 1 -column 0 -sticky e
198	grid $inner.label -row 1 -column 1 -sticky ew -pady 4
199
200	label $inner.minl -text "Minimum:"
201	entry $inner.min -width 15 -highlightbackground $itk_option(-background)
202	grid $inner.minl -row 2 -column 0 -sticky e
203	grid $inner.min -row 2 -column 1 -sticky ew -pady 4
204
205	label $inner.maxl -text "Maximum:"
206	entry $inner.max -width 15 -highlightbackground $itk_option(-background)
207	grid $inner.maxl -row 3 -column 0 -sticky e
208	grid $inner.max -row 3 -column 1 -sticky ew -pady 4
209
210	label $inner.formatl -text "Format:"
211	Rappture::Combobox $inner.format -width 15 -editable no
212	$inner.format choices insert end \
213	"%.6g" "Auto" \
214	"%.0f" "X" \
215	"%.1f" "X.X" \
216	"%.2f" "X.XX" \
217	"%.3f" "X.XXX" \
218	"%.6f" "X.XXXXXX" \
219	"%.1e" "X.Xe+XX" \
220	"%.2e" "X.XXe+XX" \
221	"%.3e" "X.XXXe+XX" \
222	"%.6e" "X.XXXXXXe+XX"
223	grid $inner.formatl -row 4 -column 0 -sticky e
224	grid $inner.format -row 4 -column 1 -sticky ew -pady 4
225
226	label $inner.scalel -text "Scale:"
227	frame $inner.scales
228	radiobutton $inner.scales.linear -text "Linear" \
229	-variable [itcl::scope _axisPopup(scale)] -value "linear"
230	pack $inner.scales.linear -side left
231	radiobutton $inner.scales.log -text "Logarithmic" \
232	-variable [itcl::scope _axisPopup(scale)] -value "log"
233	pack $inner.scales.log -side left
234	grid $inner.scalel -row 5 -column 0 -sticky e
235	grid $inner.scales -row 5 -column 1 -sticky ew -pady 4
236
237	foreach axis {x y} {
238	set _axisPopup(format-$axis) "%.6g"
239	}
240	_axis scale x linear
241	_axis scale y linear
242
243	$itk_component(plot) legend configure -hide yes
244
245	#
246	# Add legend for editing hidden/elements:
247	#
248	set inner [$itk_component(main) insert end \
249	-title "Legend" \
250	-icon [Rappture::icon wrench]]
251	$inner configure -borderwidth 4
252
253	itk_component add legend {
254	Rappture::XyLegend $inner.legend $itk_component(plot)
255	}
256	pack $itk_component(legend) -expand yes -fill both
257	after idle [subst {
258	update idletasks
259	$itk_component(legend) reset
260	}]
261
262	# quick-and-dirty zoom functionality, for now...
263	Blt_ZoomStack $itk_component(plot)
264	eval itk_initialize $args
265
266	set _hilite(elem) ""
267	}
268
269	# ----------------------------------------------------------------------
270	# DESTRUCTOR
271	# ----------------------------------------------------------------------
272	itcl::body Rappture::BarchartResult::destructor {} {
273	}
274
275	# ----------------------------------------------------------------------
276	# USAGE: add <dataobj> ?<settings>?
277	#
278	# Clients use this to add a dataobj to the plot. The optional <settings>
279	# are used to configure the plot. Allowed settings are -color,
280	# -brightness, -width, -linestyle and -raise.
281	# ----------------------------------------------------------------------
282	itcl::body Rappture::BarchartResult::add {dataobj {settings ""}} {
283	array set params {
284	-color auto
285	-brightness 0
286	-width 1
287	-type "bar"
288	-raise 0
289	-linestyle solid
290	-description ""
291	-param ""
292	}
293	foreach {opt val} $settings {
294	if {![info exists params($opt)]} {
295	error "bad setting \"$opt\": should be [join [lsort [array names params]] {, }]"
296	}
297	set params($opt) $val
298	}
299
300	# if the color is "auto", then select a color from -autocolors
301	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
302	if {$params(-color) == "autoreset"} {
303	set _autoColorI 0
304	}
305	set color [lindex $itk_option(-autocolors) $_autoColorI]
306	if {"" == $color} { set color black }
307	set params(-color) $color
308
309	# set up for next auto color
310	if {[incr _autoColorI] >= [llength $itk_option(-autocolors)]} {
311	set _autoColorI 0
312	}
313	}
314
315	# convert -linestyle to BLT -dashes
316	switch -- $params(-linestyle) {
317	dashed { set params(-linestyle) {4 4} }
318	dotted { set params(-linestyle) {2 4} }
319	default { set params(-linestyle) {} }
320	}
321
322	# if -brightness is set, then update the color
323	if {$params(-brightness) != 0} {
324	set params(-color) [Rappture::color::brightness \
325	$params(-color) $params(-brightness)]
326
327	set bg [$itk_component(plot) cget -plotbackground]
328	foreach {h s v} [Rappture::color::RGBtoHSV $bg] break
329	if {$v > 0.5} {
330	set params(-color) [Rappture::color::brightness_max \
331	$params(-color) 0.8]
332	} else {
333	set params(-color) [Rappture::color::brightness_min \
334	$params(-color) 0.2]
335	}
336	}
337
338	set pos [lsearch -exact $dataobj $_dlist]
339	if {$pos < 0} {
340	lappend _dlist $dataobj
341	set _dataobj2color($dataobj) $params(-color)
342	set _dataobj2width($dataobj) $params(-width)
343	set _dataobj2dashes($dataobj) $params(-linestyle)
344	set _dataobj2raise($dataobj) $params(-raise)
345	set _dataobj2desc($dataobj) $params(-description)
346
347	$_dispatcher event -idle !rebuild
348	}
349	}
350
351	# ----------------------------------------------------------------------
352	# USAGE: get
353	#
354	# Clients use this to query the list of objects being plotted, in
355	# order from bottom to top of this result.
356	# ----------------------------------------------------------------------
357	itcl::body Rappture::BarchartResult::get {} {
358	# put the dataobj list in order according to -raise options
359	set dlist $_dlist
360	foreach obj $dlist {
361	if {[info exists _dataobj2raise($obj)] && $_dataobj2raise($obj)} {
362	set i [lsearch -exact $dlist $obj]
363	if {$i >= 0} {
364	set dlist [lreplace $clist $i $i]
365	lappend dlist $obj
366	}
367	}
368	}
369	return $dlist
370	}
371
372	# ----------------------------------------------------------------------
373	# USAGE: delete ?<dataobj1> <dataobj2> ...?
374	#
375	# Clients use this to delete a dataobj from the plot. If no dataobjs
376	# are specified, then all dataobjs are deleted.
377	# ----------------------------------------------------------------------
378	itcl::body Rappture::BarchartResult::delete {args} {
379	if {[llength $args] == 0} {
380	set args $_dlist
381	}
382
383	# delete all specified dataobjs
384	set changed 0
385	foreach dataobj $args {
386	set pos [lsearch -exact $_dlist $dataobj]
387	if {$pos >= 0} {
388	set _dlist [lreplace $_dlist $pos $pos]
389	catch {unset _dataobj2color($dataobj)}
390	catch {unset _dataobj2width($dataobj)}
391	catch {unset _dataobj2dashes($dataobj)}
392	catch {unset _dataobj2raise($dataobj)}
393	foreach elem [array names _elem2dataobj] {
394	if {$_elem2dataobj($elem) == $dataobj} {
395	unset _elem2dataobj($elem)
396	}
397	}
398	set changed 1
399	}
400	}
401
402	# If anything changed, then rebuild the plot
403	if {$changed} {
404	$_dispatcher event -idle !rebuild
405	}
406
407	# Nothing left? then start over with auto colors
408	if {[llength $_dlist] == 0} {
409	set _autoColorI 0
410	}
411	}
412
413	# ----------------------------------------------------------------------
414	# USAGE: scale ?<dataobj1> <dataobj2> ...?
415	#
416	# Sets the default limits for the overall plot according to the
417	# limits of the data for all of the given <dataobj> objects. This
418	# accounts for all dataobjs--even those not showing on the screen.
419	# Because of this, the limits are appropriate for all dataobjs as
420	# the user scans through data in the ResultSet viewer.
421	# ----------------------------------------------------------------------
422	itcl::body Rappture::BarchartResult::scale {args} {
423	set allx [$itk_component(plot) x2axis use]
424	lappend allx x ;# fix main x-axis too
425	foreach axis $allx {
426	_axis scale $axis linear
427	}
428
429	set ally [$itk_component(plot) y2axis use]
430	lappend ally y ;# fix main y-axis too
431	foreach axis $ally {
432	_axis scale $axis linear
433	}
434
435	catch {unset _limits}
436	foreach dataobj $args {
437	# find the axes for this dataobj (e.g., {x y2})
438	foreach {map(x) map(y)} [_getAxes $dataobj] break
439
440	foreach axis {x y} {
441	# get defaults for both linear and log scales
442	foreach type {lin log} {
443	# store results -- ex: _limits(x2log-min)
444	set id $map($axis)$type
445	foreach {min max} [$dataobj limits $axis$type] break
446	if {"" != $min && "" != $max} {
447	if {![info exists _limits($id-min)]} {
448	set _limits($id-min) $min
449	set _limits($id-max) $max
450	} else {
451	if {$min < $_limits($id-min)} {
452	set _limits($id-min) $min
453	}
454	if {$max > $_limits($id-max)} {
455	set _limits($id-max) $max
456	}
457	}
458	}
459	}
460
461	if {[$dataobj hints ${axis}scale] == "log"} {
462	_axis scale $map($axis) log
463	}
464	}
465	}
466	_resetLimits
467	}
468
469	# ----------------------------------------------------------------------
470	# USAGE: download coming
471	# USAGE: download controls <downloadCommand>
472	# USAGE: download now
473	#
474	# Clients use this method to create a downloadable representation
475	# of the plot. Returns a list of the form {ext string}, where
476	# "ext" is the file extension (indicating the type of data) and
477	# "string" is the data itself.
478	# ----------------------------------------------------------------------
479	itcl::body Rappture::BarchartResult::download {option args} {
480	switch $option {
481	coming {
482	# nothing to do
483	}
484	controls {
485	set popup .barchartresultdownload
486	if {![winfo exists .barchartresultdownload]} {
487	# if we haven't created the popup yet, do it now
488	Rappture::Balloon $popup \
489	-title "[Rappture::filexfer::label downloadWord] as..."
490	set inner [$popup component inner]
491	label $inner.summary -text "" -anchor w
492	pack $inner.summary -side top
493	radiobutton $inner.csv -text "Data as Comma-Separated Values" \
494	-variable Rappture::BarchartResult::_downloadPopup(format) \
495	-value csv
496	pack $inner.csv -anchor w
497	radiobutton $inner.image -text "Image (PS/PDF/PNG/JPEG)" \
498	-variable Rappture::BarchartResult::_downloadPopup(format) \
499	-value image
500	pack $inner.image -anchor w
501	button $inner.go -text [Rappture::filexfer::label download] \
502	-command [lindex $args 0]
503	pack $inner.go -pady 4
504	} else {
505	set inner [$popup component inner]
506	}
507	set num [llength [get]]
508	set num [expr {($num == 1) ? "1 result" : "$num results"}]
509	$inner.summary configure -text "[Rappture::filexfer::label downloadWord] $num in the following format:"
510	update idletasks ;# fix initial sizes
511	return $popup
512	}
513	now {
514	set popup .barchartresultdownload
515	if {[winfo exists .barchartresultdownload]} {
516	$popup deactivate
517	}
518	switch -- $_downloadPopup(format) {
519	csv {
520	# reverse the objects so the selected data appears on top
521	set dlist ""
522	foreach dataobj [get] {
523	set dlist [linsert $dlist 0 $dataobj]
524	}
525
526	# generate the comma-separated value data for these objects
527	set csvdata ""
528	foreach dataobj $dlist {
529	append csvdata "[string repeat - 60]\n"
530	append csvdata " [$dataobj hints label]\n"
531	if {[info exists _dataobj2desc($dataobj)]
532	&& [llength [split $_dataobj2desc($dataobj) \n]] > 1} {
533	set indent "for:"
534	foreach line [split $_dataobj2desc($dataobj) \n] {
535	append csvdata " $indent $line\n"
536	set indent " "
537	}
538	}
539	append csvdata "[string repeat - 60]\n"
540
541	append csvdata "[$dataobj hints xlabel], [$dataobj hints ylabel]\n"
542	set first 1
543	foreach comp [$dataobj components] {
544	if {!$first} {
545	# blank line between components
546	append csvdata "\n"
547	}
548	set xv [$dataobj mesh $comp]
549	set yv [$dataobj values $comp]
550	foreach x [$xv range 0 end] y [$yv range 0 end] {
551	append csvdata [format "%20.15g, %20.15g\n" $x $y]
552	}
553	set first 0
554	}
555	append csvdata "\n"
556	}
557	return [list .txt $csvdata]
558	}
559	image {
560	set popup .barprintdownload
561	if { ![winfo exists $popup] } {
562	# Create a popup for the print dialog
563	Rappture::Balloon $popup -title "Save as image..."
564	set inner [$popup component inner]
565	# Create the print dialog widget and add it to the
566	# the balloon popup.
567	Rappture::XyPrint $inner.print
568	$popup configure \
569	-deactivatecommand [list $inner.print reset]
570	blt::table $inner 0,0 $inner.print -fill both
571	}
572	update
573	# Activate the popup and call for the output.
574	foreach { widget toolName plotName } $args break
575	$popup activate $widget left
576	set inner [$popup component inner]
577	set output [$inner.print print $itk_component(plot) \
578	$toolName $plotName]
579	$popup deactivate
580	return $output
581	}
582	}
583	}
584	default {
585	error "bad option \"$option\": should be coming, controls, now"
586	}
587	}
588	}
589
590	# ----------------------------------------------------------------------
591	# USAGE: _rebuild
592	#
593	# Called automatically whenever something changes that affects the
594	# data in the widget. Clears any existing data and rebuilds the
595	# widget to display new data.
596	# ----------------------------------------------------------------------
597	itcl::body Rappture::BarchartResult::_rebuild {} {
598	set g $itk_component(plot)
599
600	# First clear out the widget
601	eval $g element delete [$g element names]
602	eval $g marker delete [$g marker names]
603	foreach axis [$g axis names] {
604	$g axis configure $axis -hide yes -checklimits no
605	}
606	# Presumably you want at least an X-axis and Y-axis displayed.
607	$g xaxis configure -hide no
608	$g yaxis configure -hide no
609	array unset _label2axis
610
611	#
612	# Scan through all objects and create a list of all axes.
613	# The first x-axis gets mapped to "x". The second, to "x2".
614	# Beyond that, we must create new axes "x3", "x4", etc.
615	# We do the same for y.
616	#
617	set anum(x) 0
618	set anum(y) 0
619	foreach dataobj [get] {
620	foreach ax {x y} {
621	set label [$dataobj hints ${ax}label]
622	if {"" != $label} {
623	if {![info exists _label2axis($ax-$label)]} {
624	switch [incr anum($ax)] {
625	1 { set axis $ax }
626	2 { set axis ${ax}2 }
627	default {
628	set axis $ax$anum($ax)
629	catch {$g axis create $axis}
630	}
631	}
632	$g axis configure $axis -title $label -hide no \
633	-checklimits no
634	set _label2axis($ax-$label) $axis
635
636	# if this axis has a description, add it as a tooltip
637	set desc [string trim [$dataobj hints ${ax}desc]]
638	Rappture::Tooltip::text $g-$axis $desc
639	}
640	}
641	}
642	}
643
644	#
645	# All of the extra axes get mapped to the x2/y2 (top/right)
646	# position.
647	#
648	set all ""
649	foreach ax {x y} {
650	lappend all $ax
651
652	set extra ""
653	for {set i 2} {$i <= $anum($ax)} {incr i} {
654	lappend extra ${ax}$i
655	}
656	eval lappend all $extra
657	$g ${ax}2axis use $extra
658	if {$ax == "y"} {
659	$g configure -rightmargin [expr {($extra == "") ? 10 : 0}]
660	}
661	}
662
663	foreach axis $all {
664	set _axisPopup(format-$axis) "%.6g"
665
666	$g axis bind $axis <Enter> \
667	[itcl::code $this _axis hilite $axis on]
668	$g axis bind $axis <Leave> \
669	[itcl::code $this _axis hilite $axis off]
670	$g axis bind $axis <ButtonPress-1> \
671	[itcl::code $this _axis click $axis %x %y]
672	$g axis bind $axis <B1-Motion> \
673	[itcl::code $this _axis drag $axis %x %y]
674	$g axis bind $axis <ButtonRelease-1> \
675	[itcl::code $this _axis release $axis %x %y]
676	$g axis bind $axis <KeyPress> \
677	[list ::Rappture::Tooltip::tooltip cancel]
678	}
679
680	#
681	# Plot all of the dataobjs.
682	#
683	set count 0
684	foreach dataobj $_dlist {
685	set label [$dataobj hints label]
686	foreach {mapx mapy} [_getAxes $dataobj] break
687
688	foreach comp [$dataobj components] {
689	set xv [$dataobj mesh $comp]
690	set yv [$dataobj values $comp]
691
692	if {[info exists _dataobj2color($dataobj)]} {
693	set color $_dataobj2color($dataobj)
694	} else {
695	set color [$dataobj hints color]
696	if {"" == $color} {
697	set color black
698	}
699	}
700
701	if {[info exists _dataobj2width($dataobj)]} {
702	set lwidth $_dataobj2width($dataobj)
703	} else {
704	set lwidth 2
705	}
706
707	if {[info exists _dataobj2dashes($dataobj)]} {
708	set dashes $_dataobj2dashes($dataobj)
709	} else {
710	set dashes ""
711	}
712
713	if {([$xv length] <= 1) \|\| ($lwidth == 0)} {
714	set sym square
715	set pixels 2
716	} else {
717	set sym ""
718	set pixels 6
719	}
720
721	set elem "elem[incr count]"
722	set _elem2dataobj($elem) $dataobj
723	set labels [$dataobj hints xticks]
724	if { $labels != "" } {
725	$g axis configure $mapx \
726	-command [itcl::code $this _formatTickLabel] \
727	-minorticks 0
728	set _tickLabels $labels
729	}
730	$g element create $elem -x $xv -y $yv \
731	-borderwidth $lwidth -label $label \
732	-background $color -foreground $color -mapx $mapx -mapy $mapy
733	}
734	}
735
736	# Fix duplicate labels by appending the simulation number
737	foreach label [array names label2elem] {
738	if { [llength $label2elem($label)] == 1 } {
739	continue
740	}
741	foreach elem $label2elem($label) {
742	set dataobj $_elem2dataobj($elem)
743	scan [$dataobj hints xmlobj] "::libraryObj%d" suffix
744	incr suffix
745	set elabel [format "%s \#%d" $label $suffix]
746	$g element configure $elem -label $elabel
747	}
748	}
749
750	foreach dataobj $_dlist {
751	set xmin -Inf
752	set ymin -Inf
753	set xmax Inf
754	set ymax Inf
755	#
756	# Create text/line markers for each *axis.marker specified.
757	#
758	foreach m [$dataobj xmarkers] {
759	foreach {at label style} $m break
760	set id [$g marker create line -coords [list $at $ymin $at $ymax]]
761	$g marker bind $id <Enter> \
762	[itcl::code $this _enterMarker $g x-$label $at $ymin $at]
763	$g marker bind $id <Leave> \
764	[itcl::code $this _leaveMarker $g x-$label]
765	set options [_getLineMarkerOptions $style]
766	if { $options != "" } {
767	eval $g marker configure $id $options
768	}
769	if { $label != "" } {
770	set id [$g marker create text -anchor nw \
771	-text $label -coords [list $at $ymax]]
772	set options [_getTextMarkerOptions $style]
773	if { $options != "" } {
774	eval $g marker configure $id $options
775	}
776	}
777	}
778	foreach m [$dataobj ymarkers] {
779	foreach {at label style} $m break
780	set id [$g marker create line -coords [list $xmin $at $xmax $at]]
781	$g marker bind $id <Enter> \
782	[itcl::code $this _enterMarker $g y-$label $at $xmin $at]
783	$g marker bind $id <Leave> \
784	[itcl::code $this _leaveMarker $g y-$label]
785	set options [_getLineMarkerOptions $style]
786	if { $options != "" } {
787	eval $g marker configure $id $options
788	}
789	if { $label != "" } {
790	set id [$g marker create text -anchor se \
791	-text $label -coords [list $xmax $at]]
792	set options [_getTextMarkerOptions $style]
793	if { $options != "" } {
794	eval $g marker configure $id $options
795	}
796	}
797	}
798	}
799	$itk_component(legend) reset
800	}
801
802	# ----------------------------------------------------------------------
803	# USAGE: _resetLimits
804	#
805	# Used internally to apply automatic limits to the axes for the
806	# current plot.
807	# ----------------------------------------------------------------------
808	itcl::body Rappture::BarchartResult::_resetLimits {} {
809	set g $itk_component(plot)
810	foreach axis [$g axis names] {
811	$g axis configure $axis -min "" -max ""
812	}
813	return
814
815	#
816	# HACK ALERT!
817	# Use this code to fix up the y-axis limits for the BLT graph.
818	# The auto-limits don't always work well. We want them to be
819	# set to a "nice" number slightly above or below the min/max
820	# limits.
821	#
822	foreach axis [$g axis names] {
823	if {[info exists _limits(${axis}lin-min)]} {
824	set log [$g axis cget $axis -logscale]
825	if {$log} {
826	set min $_limits(${axis}log-min)
827	if {$min == 0} { set min 1 }
828	set max $_limits(${axis}log-max)
829	if {$max == 0} { set max 1 }
830
831	if {$min == $max} {
832	set logmin [expr {floor(log10(abs(0.9*$min)))}]
833	set logmax [expr {ceil(log10(abs(1.1*$max)))}]
834	} else {
835	set logmin [expr {floor(log10(abs($min)))}]
836	set logmax [expr {ceil(log10(abs($max)))}]
837	if {[string match y* $axis]} {
838	# add a little padding
839	set delta [expr {$logmax-$logmin}]
840	if {$delta == 0} { set delta 1 }
841	set logmin [expr {$logmin-0.05*$delta}]
842	set logmax [expr {$logmax+0.05*$delta}]
843	}
844	}
845	if {$logmin < -300} {
846	set min 1e-300
847	} elseif {$logmin > 300} {
848	set min 1e+300
849	} else {
850	set min [expr {pow(10.0,$logmin)}]
851	}
852
853	if {$logmax < -300} {
854	set max 1e-300
855	} elseif {$logmax > 300} {
856	set max 1e+300
857	} else {
858	set max [expr {pow(10.0,$logmax)}]
859	}
860	} else {
861	set min $_limits(${axis}lin-min)
862	set max $_limits(${axis}lin-max)
863
864	if {[string match y* $axis]} {
865	# add a little padding
866	set delta [expr {$max-$min}]
867	set min [expr {$min-0.05*$delta}]
868	set max [expr {$max+0.05*$delta}]
869	}
870	}
871	if {$min < $max} {
872	$g axis configure $axis -min $min -max $max
873	} else {
874	$g axis configure $axis -min "" -max ""
875	}
876	} else {
877	$g axis configure $axis -min "" -max ""
878	}
879	}
880	}
881
882	# ----------------------------------------------------------------------
883	# USAGE: _zoom reset
884	#
885	# Called automatically when the user clicks on one of the zoom
886	# controls for this widget. Changes the zoom for the current view.
887	# ----------------------------------------------------------------------
888	itcl::body Rappture::BarchartResult::_zoom {option args} {
889	switch -- $option {
890	reset {
891	_resetLimits
892	}
893	}
894	}
895
896	# ----------------------------------------------------------------------
897	# USAGE: _hilite <state> <x> <y>
898	#
899	# Called automatically when the user brushes one of the elements
900	# on the plot. Causes the element to highlight and a tooltip to
901	# pop up with element info.
902	# ----------------------------------------------------------------------
903	itcl::body Rappture::BarchartResult::_hilite {state x y} {
904	set g $itk_component(plot)
905	set elem ""
906
907	# Peek inside of Blt_ZoomStack package to see if we're currently in the
908	# middle of a zoom selection.
909	if {[info exists ::zoomInfo($g,corner)] && $::zoomInfo($g,corner) == "B" } {
910	return;
911	}
912	set tip ""
913	if {$state == "at"} {
914	set state 0
915	if {[$g element closest $x $y info -interpolate yes]} {
916	# for dealing with xy line plots
917	set elem $info(name)
918
919	# Some elements are generated dynamically and therefore will
920	# not have a dataobj associated with them.
921	set mapx [$g element cget $elem -mapx]
922	set mapy [$g element cget $elem -mapy]
923	if {[info exists _elem2dataobj($elem)]} {
924	foreach {mapx mapy} [_getAxes $_elem2dataobj($elem)] break
925	}
926
927	# search again for an exact point -- this time don't interpolate
928	set tip ""
929	array unset info
930	if {[$g element closest $x $y info -interpolate no]
931	&& $info(name) == $elem} {
932
933	set x [$g axis transform $mapx $info(x)]
934	set y [$g axis transform $mapy $info(y)]
935
936	if {[info exists _elem2dataobj($elem)]} {
937	set dataobj $_elem2dataobj($elem)
938	set yunits [$dataobj hints yunits]
939	set xunits [$dataobj hints xunits]
940	} else {
941	set xunits ""
942	set yunits ""
943	}
944	set tip [$g element cget $elem -label]
945	set yval [_axis format y dummy $info(y)]
946	append tip "\n$yval$yunits"
947	set xval [_axis format x dummy $info(x)]
948	append tip " @ $xval$xunits"
949	set tip [string trim $tip]
950	}
951	set state 1
952	} elseif {[$g element closest $x $y info -interpolate no]} {
953	# for dealing with xy scatter plot
954	set elem $info(name)
955
956	# Some elements are generated dynamically and therefore will
957	# not have a dataobj associated with them.
958	set mapx [$g element cget $elem -mapx]
959	set mapy [$g element cget $elem -mapy]
960	if {[info exists _elem2dataobj($elem)]} {
961	foreach {mapx mapy} [_getAxes $_elem2dataobj($elem)] break
962	}
963
964	set tip ""
965	set x [$g axis transform $mapx $info(x)]
966	set y [$g axis transform $mapy $info(y)]
967
968	if {[info exists _elem2dataobj($elem)]} {
969	set dataobj $_elem2dataobj($elem)
970	set yunits [$dataobj hints yunits]
971	set xunits [$dataobj hints xunits]
972	} else {
973	set xunits ""
974	set yunits ""
975	}
976	set tip [$g element cget $elem -label]
977	set yval [_axis format y dummy $info(y)]
978	append tip "\n$yval$yunits"
979	set xval [_axis format x dummy $info(x)]
980	append tip " @ $xval$xunits"
981	set tip [string trim $tip]
982	set state 1
983	}
984	} else {
985	set state 0
986	}
987
988	if { $state } {
989	#
990	# Highlight ON:
991	# - activate trace
992	# - multiple axes? dim other axes
993	# - pop up tooltip about data
994	#
995	if { [$g element exists $_hilite(elem)] && $_hilite(elem) != $elem } {
996	$g element deactivate $_hilite(elem)
997	$g crosshairs configure -hide yes
998	Rappture::Tooltip::tooltip cancel
999	}
1000	set bg [$g element cget $elem -background]
1001	set fg [$g element cget $elem -background]
1002	foreach {h s v} [Rappture::color::RGBtoHSV $fg] break
1003	if { $v > 0.2 } {
1004	set v [expr $v - 0.2]
1005	}
1006	set fg [Rappture::color::HSVtoRGB $h $s $v]
1007	$g pen configure activeBar -background $bg -foreground $fg
1008	$g element activate $elem
1009	set _hilite(elem) $elem
1010
1011	set mapx [$g element cget $elem -mapx]
1012	set mapy [$g element cget $elem -mapy]
1013	if {[info exists _elem2dataobj($elem)]} {
1014	foreach {mapx mapy} [_getAxes $_elem2dataobj($elem)] break
1015	}
1016	set allx [$g x2axis use]
1017	if {[llength $allx] > 0} {
1018	lappend allx x ;# fix main x-axis too
1019	foreach axis $allx {
1020	if {$axis == $mapx} {
1021	$g axis configure $axis -color $itk_option(-foreground) \
1022	-titlecolor $itk_option(-foreground)
1023	} else {
1024	$g axis configure $axis -color $itk_option(-dimcolor) \
1025	-titlecolor $itk_option(-dimcolor)
1026	}
1027	}
1028	}
1029	set ally [$g y2axis use]
1030	if {[llength $ally] > 0} {
1031	lappend ally y ;# fix main y-axis too
1032	foreach axis $ally {
1033	if {$axis == $mapy} {
1034	$g axis configure $axis -color $itk_option(-foreground) \
1035	-titlecolor $itk_option(-foreground)
1036	} else {
1037	$g axis configure $axis -color $itk_option(-dimcolor) \
1038	-titlecolor $itk_option(-dimcolor)
1039	}
1040	}
1041	}
1042
1043	if {"" != $tip} {
1044	$g crosshairs configure -hide no -position @$x,$y
1045
1046	if {$x > 0.5*[winfo width $g]} {
1047	if {$x < 4} {
1048	set tipx "-0"
1049	} else {
1050	set tipx "-[expr {$x-4}]" ;# move tooltip to the left
1051	}
1052	} else {
1053	if {$x < -4} {
1054	set tipx "+0"
1055	} else {
1056	set tipx "+[expr {$x+4}]" ;# move tooltip to the right
1057	}
1058	}
1059	if {$y > 0.5*[winfo height $g]} {
1060	if {$y < 4} {
1061	set tipy "-0"
1062	} else {
1063	set tipy "-[expr {$y-4}]" ;# move tooltip to the top
1064	}
1065	} else {
1066	if {$y < -4} {
1067	set tipy "+0"
1068	} else {
1069	set tipy "+[expr {$y+4}]" ;# move tooltip to the bottom
1070	}
1071	}
1072	Rappture::Tooltip::text $g $tip
1073	Rappture::Tooltip::tooltip show $g $tipx,$tipy
1074	}
1075	} else {
1076	#
1077	# Highlight OFF:
1078	# - deactivate (color back to normal)
1079	# - put all axes back to normal color
1080	# - take down tooltip
1081	#
1082	if { [$g element exists $_hilite(elem)] } {
1083	$g element deactivate $_hilite(elem)
1084	}
1085	set allx [$g x2axis use]
1086	if {[llength $allx] > 0} {
1087	lappend allx x ;# fix main x-axis too
1088	foreach axis $allx {
1089	$g axis configure $axis -color $itk_option(-foreground) \
1090	-titlecolor $itk_option(-foreground)
1091	}
1092	}
1093
1094	set ally [$g y2axis use]
1095	if {[llength $ally] > 0} {
1096	lappend ally y ;# fix main y-axis too
1097	foreach axis $ally {
1098	$g axis configure $axis -color $itk_option(-foreground) \
1099	-titlecolor $itk_option(-foreground)
1100	}
1101	}
1102
1103	$g crosshairs configure -hide yes
1104
1105	# only cancel in plotting area or we'll mess up axes
1106	if {[$g inside $x $y]} {
1107	Rappture::Tooltip::tooltip cancel
1108	}
1109
1110	# There is no currently highlighted element
1111	set _hilite(elem) ""
1112	}
1113	}
1114
1115	# ----------------------------------------------------------------------
1116	# USAGE: _axis hilite <axis> <state>
1117	#
1118	# USAGE: _axis click <axis> <x> <y>
1119	# USAGE: _axis drag <axis> <x> <y>
1120	# USAGE: _axis release <axis> <x> <y>
1121	#
1122	# USAGE: _axis edit <axis>
1123	# USAGE: _axis changed <axis> <what>
1124	# USAGE: _axis format <axis> <widget> <value>
1125	# USAGE: _axis scale <axis> linear\|log
1126	#
1127	# Used internally to handle editing of the x/y axes. The hilite
1128	# operation causes the axis to light up. The edit operation pops
1129	# up a panel with editing options. The changed operation applies
1130	# changes from the panel.
1131	# ----------------------------------------------------------------------
1132	itcl::body Rappture::BarchartResult::_axis {option args} {
1133	set inner [$itk_component(hull).axes component inner]
1134	switch -- $option {
1135	hilite {
1136	if {[llength $args] != 2} {
1137	error "wrong # args: should be \"_axis hilite axis state\""
1138	}
1139	set g $itk_component(plot)
1140	set axis [lindex $args 0]
1141	set state [lindex $args 1]
1142
1143	if {$state} {
1144	$g axis configure $axis \
1145	-color $itk_option(-activecolor) \
1146	-titlecolor $itk_option(-activecolor)
1147
1148	set x [expr {[winfo pointerx $g]+4}]
1149	set y [expr {[winfo pointery $g]+4}]
1150	Rappture::Tooltip::tooltip pending $g-$axis @$x,$y
1151	} else {
1152	$g axis configure $axis \
1153	-color $itk_option(-foreground) \
1154	-titlecolor $itk_option(-foreground)
1155	Rappture::Tooltip::tooltip cancel
1156	}
1157	}
1158	click {
1159	if {[llength $args] != 3} {
1160	error "wrong # args: should be \"_axis click axis x y\""
1161	}
1162	set axis [lindex $args 0]
1163	set x [lindex $args 1]
1164	set y [lindex $args 2]
1165	set g $itk_component(plot)
1166
1167	set _axis(moved) 0
1168	set _axis(click-x) $x
1169	set _axis(click-y) $y
1170	foreach {min max} [$g axis limits $axis] break
1171	set _axis(min0) $min
1172	set _axis(max0) $max
1173	Rappture::Tooltip::tooltip cancel
1174	}
1175	drag {
1176	if {[llength $args] != 3} {
1177	error "wrong # args: should be \"_axis drag axis x y\""
1178	}
1179	if {![info exists _axis(moved)]} {
1180	return ;# must have skipped click event -- ignore
1181	}
1182	set axis [lindex $args 0]
1183	set x [lindex $args 1]
1184	set y [lindex $args 2]
1185	set g $itk_component(plot)
1186
1187	if {[info exists _axis(click-x)] && [info exists _axis(click-y)]} {
1188	foreach {x0 y0 pw ph} [$g extents plotarea] break
1189	switch -glob $axis {
1190	x* {
1191	set pix $x
1192	set pix0 $_axis(click-x)
1193	set pixmin $x0
1194	set pixmax [expr {$x0+$pw}]
1195	}
1196	y* {
1197	set pix $y
1198	set pix0 $_axis(click-y)
1199	set pixmin [expr {$y0+$ph}]
1200	set pixmax $y0
1201	}
1202	}
1203	set log [$g axis cget $axis -logscale]
1204	set min $_axis(min0)
1205	set max $_axis(max0)
1206	set dpix [expr {abs($pix-$pix0)}]
1207	set v0 [$g axis invtransform $axis $pixmin]
1208	set v1 [$g axis invtransform $axis [expr {$pixmin+$dpix}]]
1209	if {$log} {
1210	set v0 [expr {log10($v0)}]
1211	set v1 [expr {log10($v1)}]
1212	set min [expr {log10($min)}]
1213	set max [expr {log10($max)}]
1214	}
1215
1216	if {$pix > $pix0} {
1217	set delta [expr {$v1-$v0}]
1218	} else {
1219	set delta [expr {$v0-$v1}]
1220	}
1221	set min [expr {$min-$delta}]
1222	set max [expr {$max-$delta}]
1223	if {$log} {
1224	set min [expr {pow(10.0,$min)}]
1225	set max [expr {pow(10.0,$max)}]
1226	}
1227	$g axis configure $axis -min $min -max $max
1228
1229	# move axis, don't edit on release
1230	set _axis(move) 1
1231	}
1232	}
1233	release {
1234	if {[llength $args] != 3} {
1235	error "wrong # args: should be \"_axis release axis x y\""
1236	}
1237	if {![info exists _axis(moved)]} {
1238	return ;# must have skipped click event -- ignore
1239	}
1240	set axis [lindex $args 0]
1241	set x [lindex $args 1]
1242	set y [lindex $args 2]
1243
1244	if {!$_axis(moved)} {
1245	# small movement? then treat as click -- pop up axis editor
1246	set dx [expr {abs($x-$_axis(click-x))}]
1247	set dy [expr {abs($y-$_axis(click-y))}]
1248	if {$dx < 2 && $dy < 2} {
1249	_axis edit $axis
1250	}
1251	} else {
1252	# one last movement
1253	_axis drag $axis $x $y
1254	}
1255	catch {unset _axis}
1256	}
1257	edit {
1258	if {[llength $args] != 1} {
1259	error "wrong # args: should be \"_axis edit axis\""
1260	}
1261	set axis [lindex $args 0]
1262	set _axisPopup(current) $axis
1263
1264	# apply last value when deactivating
1265	$itk_component(hull).axes configure -deactivatecommand \
1266	[itcl::code $this _axis changed $axis focus]
1267
1268	# fix axis label controls...
1269	set label [$itk_component(plot) axis cget $axis -title]
1270	$inner.label delete 0 end
1271	$inner.label insert end $label
1272	bind $inner.label <KeyPress-Return> \
1273	[itcl::code $this _axis changed $axis label]
1274	bind $inner.label <FocusOut> \
1275	[itcl::code $this _axis changed $axis label]
1276
1277	# fix min/max controls...
1278	foreach {min max} [$itk_component(plot) axis limits $axis] break
1279	$inner.min delete 0 end
1280	$inner.min insert end $min
1281	bind $inner.min <KeyPress-Return> \
1282	[itcl::code $this _axis changed $axis min]
1283	bind $inner.min <FocusOut> \
1284	[itcl::code $this _axis changed $axis min]
1285
1286	$inner.max delete 0 end
1287	$inner.max insert end $max
1288	bind $inner.max <KeyPress-Return> \
1289	[itcl::code $this _axis changed $axis max]
1290	bind $inner.max <FocusOut> \
1291	[itcl::code $this _axis changed $axis max]
1292
1293	# fix format control...
1294	set fmts [$inner.format choices get -value]
1295	set i [lsearch -exact $fmts $_axisPopup(format-$axis)]
1296	if {$i < 0} { set i 0 } ;# use Auto choice
1297	$inner.format value [$inner.format choices get -label $i]
1298
1299	bind $inner.format <<Value>> \
1300	[itcl::code $this _axis changed $axis format]
1301
1302	# fix scale control...
1303	if {[$itk_component(plot) axis cget $axis -logscale]} {
1304	set _axisPopup(scale) "log"
1305	$inner.format configure -state disabled
1306	} else {
1307	set _axisPopup(scale) "linear"
1308	$inner.format configure -state normal
1309	}
1310	$inner.scales.linear configure \
1311	-command [itcl::code $this _axis changed $axis scale]
1312	$inner.scales.log configure \
1313	-command [itcl::code $this _axis changed $axis scale]
1314
1315	#
1316	# Figure out where the window should pop up.
1317	#
1318	set x [winfo rootx $itk_component(plot)]
1319	set y [winfo rooty $itk_component(plot)]
1320	set w [winfo width $itk_component(plot)]
1321	set h [winfo height $itk_component(plot)]
1322	foreach {x0 y0 pw ph} [$itk_component(plot) extents plotarea] break
1323	switch -glob -- $axis {
1324	x {
1325	set x [expr {round($x + $x0+0.5*$pw)}]
1326	set y [expr {round($y + $y0+$ph + 0.5*($h-$y0-$ph))}]
1327	set dir "above"
1328	}
1329	x* {
1330	set x [expr {round($x + $x0+0.5*$pw)}]
1331	set dir "below"
1332	set allx [$itk_component(plot) x2axis use]
1333	set max [llength $allx]
1334	set i [lsearch -exact $allx $axis]
1335	set y [expr {round($y + ($i+0.5)*$y0/double($max))}]
1336	}
1337	y {
1338	set x [expr {round($x + 0.5*$x0)}]
1339	set y [expr {round($y + $y0+0.5*$ph)}]
1340	set dir "right"
1341	}
1342	y* {
1343	set y [expr {round($y + $y0+0.5*$ph)}]
1344	set dir "left"
1345	set ally [$itk_component(plot) y2axis use]
1346	set max [llength $ally]
1347	set i [lsearch -exact $ally $axis]
1348	set y [expr {round($y + ($i+0.5)*$y0/double($max))}]
1349	set x [expr {round($x+$x0+$pw + ($i+0.5)*($w-$x0-$pw)/double($max))}]
1350	}
1351	}
1352	$itk_component(hull).axes activate @$x,$y $dir
1353	}
1354	changed {
1355	if {[llength $args] != 2} {
1356	error "wrong # args: should be \"_axis changed axis what\""
1357	}
1358	set axis [lindex $args 0]
1359	set what [lindex $args 1]
1360	if {$what == "focus"} {
1361	set what [focus]
1362	if {[winfo exists $what]} {
1363	set what [winfo name $what]
1364	}
1365	}
1366
1367	switch -- $what {
1368	label {
1369	set val [$inner.label get]
1370	$itk_component(plot) axis configure $axis -title $val
1371	}
1372	min {
1373	set val [$inner.min get]
1374	if {![string is double -strict $val]} {
1375	Rappture::Tooltip::cue $inner.min "Must be a number"
1376	bell
1377	return
1378	}
1379
1380	set max [lindex [$itk_component(plot) axis limits $axis] 1]
1381	if {$val >= $max} {
1382	Rappture::Tooltip::cue $inner.min "Must be <= max ($max)"
1383	bell
1384	return
1385	}
1386	catch {
1387	# can fail in log mode
1388	$itk_component(plot) axis configure $axis -min $val
1389	}
1390	foreach {min max} [$itk_component(plot) axis limits $axis] break
1391	$inner.min delete 0 end
1392	$inner.min insert end $min
1393	}
1394	max {
1395	set val [$inner.max get]
1396	if {![string is double -strict $val]} {
1397	Rappture::Tooltip::cue $inner.max "Should be a number"
1398	bell
1399	return
1400	}
1401
1402	set min [lindex [$itk_component(plot) axis limits $axis] 0]
1403	if {$val <= $min} {
1404	Rappture::Tooltip::cue $inner.max "Must be >= min ($min)"
1405	bell
1406	return
1407	}
1408	catch {
1409	# can fail in log mode
1410	$itk_component(plot) axis configure $axis -max $val
1411	}
1412	foreach {min max} [$itk_component(plot) axis limits $axis] break
1413	$inner.max delete 0 end
1414	$inner.max insert end $max
1415	}
1416	format {
1417	set fmt [$inner.format translate [$inner.format value]]
1418	set _axisPopup(format-$axis) $fmt
1419
1420	# force a refresh
1421	$itk_component(plot) axis configure $axis -min \
1422	[$itk_component(plot) axis cget $axis -min]
1423	}
1424	scale {
1425	_axis scale $axis $_axisPopup(scale)
1426
1427	if {$_axisPopup(scale) == "log"} {
1428	$inner.format configure -state disabled
1429	} else {
1430	$inner.format configure -state normal
1431	}
1432
1433	foreach {min max} [$itk_component(plot) axis limits $axis] break
1434	$inner.min delete 0 end
1435	$inner.min insert end $min
1436	$inner.max delete 0 end
1437	$inner.max insert end $max
1438	}
1439	default {
1440	# be lenient so we can handle the "focus" case
1441	}
1442	}
1443	}
1444	format {
1445	if {[llength $args] != 3} {
1446	error "wrong # args: should be \"_axis format axis widget value\""
1447	}
1448	set axis [lindex $args 0]
1449	set value [lindex $args 2]
1450
1451	if {[$itk_component(plot) axis cget $axis -logscale]} {
1452	set fmt "%.6g"
1453	} else {
1454	set fmt $_axisPopup(format-$axis)
1455	}
1456	return [format $fmt $value]
1457	}
1458	scale {
1459	if {[llength $args] != 2} {
1460	error "wrong # args: should be \"_axis scale axis type\""
1461	}
1462	set axis [lindex $args 0]
1463	set type [lindex $args 1]
1464
1465	if {$type == "log"} {
1466	catch {$itk_component(plot) axis configure $axis -logscale 1}
1467	# leave format alone in log mode
1468	$itk_component(plot) axis configure $axis -command ""
1469	} else {
1470	catch {$itk_component(plot) axis configure $axis -logscale 0}
1471	# use special formatting for linear mode
1472	$itk_component(plot) axis configure $axis -command \
1473	[itcl::code $this _axis format $axis]
1474	}
1475	}
1476	default {
1477	error "bad option \"$option\": should be changed, edit, hilite, or format"
1478	}
1479	}
1480	}
1481
1482
1483	# ----------------------------------------------------------------------
1484	# USAGE: _getLineMarkerOptions <style>
1485	#
1486	# Used internally to create a list of configuration options specific to the
1487	# axis line marker. The input is a list of name value pairs. Options that
1488	# are not recognized are ignored.
1489	# ----------------------------------------------------------------------
1490	itcl::body Rappture::BarchartResult::_getLineMarkerOptions {style} {
1491	array set lineOptions {
1492	"-color" "-outline"
1493	"-dashes" "-dashes"
1494	"-linecolor" "-foreground"
1495	"-linewidth" "-borderwidth"
1496	}
1497	set options {}
1498	foreach {name value} $style {
1499	if { [info exists lineOptions($name)] } {
1500	lappend options $lineOptions($name) $value
1501	}
1502	}
1503	return $options
1504	}
1505
1506	# ----------------------------------------------------------------------
1507	# USAGE: _getTextMarkerOptions <style>
1508	#
1509	# Used internally to create a list of configuration options specific to the
1510	# axis text marker. The input is a list of name value pairs. Options that
1511	# are not recognized are ignored.
1512	# ----------------------------------------------------------------------
1513	itcl::body Rappture::BarchartResult::_getTextMarkerOptions {style} {
1514	array set textOptions {
1515	"-color" "-outline"
1516	"-textcolor" "-outline"
1517	"-font" "-font"
1518	"-xoffset" "-xoffset"
1519	"-yoffset" "-yoffset"
1520	"-anchor" "-anchor"
1521	"-rotate" "-rotate"
1522	}
1523	set options {}
1524	foreach {name value} $style {
1525	if { [info exists textOptions($name)] } {
1526	lappend options $textOptions($name) $value
1527	}
1528	}
1529	return $options
1530	}
1531
1532	# ----------------------------------------------------------------------
1533	# USAGE: _getAxes <dataobj>
1534	#
1535	# Used internally to figure out the axes used to plot the given
1536	# <dataobj>. Returns a list of the form {x y}, where x is the
1537	# x-axis name (x, x2, x3, etc.), and y is the y-axis name.
1538	# ----------------------------------------------------------------------
1539	itcl::body Rappture::BarchartResult::_getAxes {dataobj} {
1540	# rebuild if needed, so we know about the axes
1541	if {[$_dispatcher ispending !rebuild]} {
1542	$_dispatcher cancel !rebuild
1543	$_dispatcher event -now !rebuild
1544	}
1545
1546	# what is the x axis? x? x2? x3? ...
1547	set xlabel [$dataobj hints xlabel]
1548	if {[info exists _label2axis(x-$xlabel)]} {
1549	set mapx $_label2axis(x-$xlabel)
1550	} else {
1551	set mapx "x"
1552	}
1553
1554	# what is the y axis? y? y2? y3? ...
1555	set ylabel [$dataobj hints ylabel]
1556	if {[info exists _label2axis(y-$ylabel)]} {
1557	set mapy $_label2axis(y-$ylabel)
1558	} else {
1559	set mapy "y"
1560	}
1561
1562	return [list $mapx $mapy]
1563	}
1564
1565	# ----------------------------------------------------------------------
1566	# CONFIGURATION OPTION: -gridcolor
1567	# ----------------------------------------------------------------------
1568	itcl::configbody Rappture::BarchartResult::gridcolor {
1569	if {"" == $itk_option(-gridcolor)} {
1570	$itk_component(plot) grid off
1571	} else {
1572	$itk_component(plot) grid configure -color $itk_option(-gridcolor)
1573	$itk_component(plot) grid on
1574	}
1575	}
1576
1577	# ----------------------------------------------------------------------
1578	# CONFIGURATION OPTION: -autocolors
1579	# ----------------------------------------------------------------------
1580	itcl::configbody Rappture::BarchartResult::autocolors {
1581	foreach c $itk_option(-autocolors) {
1582	if {[catch {winfo rgb $itk_component(hull) $c}]} {
1583	error "bad color \"$c\""
1584	}
1585	}
1586	if {$_autoColorI >= [llength $itk_option(-autocolors)]} {
1587	set _autoColorI 0
1588	}
1589	}
1590
1591	itcl::body Rappture::BarchartResult::_enterMarker { g name x y text } {
1592	_leaveMarker $g $name
1593	set id [$g marker create text \
1594	-coords [list $x $y] \
1595	-yoffset -1 \
1596	-anchor s \
1597	-text $text]
1598	set _markers($name) $id
1599	}
1600
1601	itcl::body Rappture::BarchartResult::_leaveMarker { g name } {
1602	if { [info exists _markers($name)] } {
1603	set id $_markers($name)
1604	$g marker delete $id
1605	unset _markers($name)
1606	}
1607	}
1608
1609	itcl::body Rappture::BarchartResult::_formatTickLabel { w value } {
1610	# Determine the element name from the value
1611
1612	set index [expr round($value)]
1613	if { $index != $value } {
1614	return $value
1615	}
1616	return [lindex $_tickLabels [expr $index - 1]]
1617	if { $label == "" } {
1618	return $value
1619	}
1620	return $label
1621	}

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