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source: trunk/gui/scripts/deviceViewer1D.tcl @ 4190

Last change on this file since 4190 was 3813, checked in by ldelgass, 11 years ago
Fix bug in 'add' method of viewer widgets: list search for existing dataobj entry was wrong (list and pattern transposed), causing potential duplicate entries in dataobj list.
File size: 29.9 KB

Line
1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: deviceViewer1D - visualizer for 1D device geometries
4	#
5	# This widget is a simple visualizer for 1D devices. It takes the
6	# Rappture XML representation for a 1D device and draws various
7	# facets of the data. Each facet shows the physical layout along
8	# with some other quantity. The "Electrical" facet shows electrical
9	# contacts. The "Doping" facet shows the doping profile, and so
10	# forth.
11	# ======================================================================
12	# AUTHOR: Michael McLennan, Purdue University
13	# Copyright (c) 2004-2012 HUBzero Foundation, LLC
14	#
15	# See the file "license.terms" for information on usage and
16	# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
17	# ======================================================================
18	package require Itk
19	package require Img
20	package require BLT
21
22	option add *DeviceViewer1D.padding 4 widgetDefault
23	option add *DeviceViewer1D.deviceSize 0.25i widgetDefault
24	option add *DeviceViewer1D.deviceOutline black widgetDefault
25	option add DeviceViewer1Dgraph.width 3i widgetDefault
26	option add DeviceViewer1Dgraph.height 2i widgetDefault
27
28	itcl::class Rappture::DeviceViewer1D {
29	inherit itk::Widget
30
31	itk_option define -device device Device ""
32
33	constructor {owner args} { # defined below }
34	destructor { # defined below }
35
36	public method add {dataobj {settings ""}}
37	public method get {}
38	public method delete {args}
39	public method parameters {title args} { # do nothing }
40
41	public method controls {option args}
42	public method download {option args}
43
44	protected method _loadDevice {}
45	protected method _loadParameters {frame path}
46	protected method _changeTabs {{why -program}}
47	protected method _fixSize {}
48	protected method _fixAxes {}
49	protected method _align {}
50
51	protected method _marker {option {name ""} {path ""}}
52
53	protected method _controlCreate {container libObj path}
54	protected method _controlSet {widget libObj path}
55
56	private variable _owner "" ;# thing managing this control
57	private variable _dlist "" ;# list of dataobj objects
58	private variable _dobj2raise ;# maps dataobj => raise flag
59	private variable _device "" ;# XML library with <structure>
60	private variable _tab2fields ;# maps tab name => list of fields
61	private variable _field2parm ;# maps field path => parameter name
62	private variable _units "" ;# units for field being edited
63	private variable _marker ;# marker currently being edited
64	}
65
66	itk::usual DeviceViewer1D {
67	}
68
69	# ----------------------------------------------------------------------
70	# CONSTRUCTOR
71	# ----------------------------------------------------------------------
72	itcl::body Rappture::DeviceViewer1D::constructor {owner args} {
73	set _owner $owner
74
75	pack propagate $itk_component(hull) no
76
77	itk_component add tabs {
78	blt::tabset $itk_interior.tabs -borderwidth 0 -relief flat \
79	-side bottom -tearoff 0 \
80	-selectcommand [itcl::code $this _changeTabs -user]
81	} {
82	keep -activebackground -activeforeground
83	keep -background -cursor -font
84	rename -highlightbackground -background background Background
85	keep -highlightcolor -highlightthickness
86	keep -tabbackground -tabforeground
87	rename -selectbackground -background background Background
88	rename -selectforeground -foreground foreground Foreground
89	}
90	pack $itk_component(tabs) -expand yes -fill both
91
92	itk_component add -protected inner {
93	frame $itk_component(tabs).inner
94	}
95
96	itk_component add top {
97	frame $itk_component(inner).top
98	}
99	pack $itk_component(top) -fill x
100
101	itk_component add layout {
102	Rappture::DeviceLayout1D $itk_component(inner).layout
103	}
104	pack $itk_component(layout) -side top -fill x -pady 4
105
106	itk_component add graph {
107	blt::graph $itk_component(inner).graph \
108	-highlightthickness 0 -plotpadx 0 -plotpady 0
109	} {
110	keep -background -foreground -cursor -font
111	}
112	pack $itk_component(graph) -expand yes -fill both
113	$itk_component(graph) legend configure -hide yes
114
115	bind $itk_component(graph) <Configure> "
116	[list after cancel [list catch [itcl::code $this _align]]]
117	[list after 100 [list catch [itcl::code $this _align]]]
118	"
119
120	itk_component add geditor {
121	Rappture::Editor $itk_component(graph).editor \
122	-activatecommand [itcl::code $this _marker activate] \
123	-validatecommand [itcl::code $this _marker validate] \
124	-applycommand [itcl::code $this _marker apply]
125	}
126
127	itk_component add devcntls {
128	Rappture::Notebook $itk_component(inner).devcntls
129	}
130	pack $itk_component(devcntls) -side bottom -fill x
131
132	eval itk_initialize $args
133
134	after cancel [list catch [itcl::code $this _fixSize]]
135	after idle [list catch [itcl::code $this _fixSize]]
136	}
137
138	# ----------------------------------------------------------------------
139	# DESTRUCTOR
140	# ----------------------------------------------------------------------
141	itcl::body Rappture::DeviceViewer1D::destructor {} {
142	set _device ""
143	foreach name [array names _tab2fields] {
144	eval itcl::delete object $_tab2fields($name)
145	}
146	after cancel [list catch [itcl::code $this _fixAxes]]
147	after cancel [list catch [itcl::code $this _align]]
148	after cancel [list catch [itcl::code $this _loadDevice]]
149	}
150
151	# ----------------------------------------------------------------------
152	# USAGE: add <dataobj> ?<settings>?
153	#
154	# Clients use this to add a data object to the plot. The optional
155	# <settings> are used to configure the plot. Allowed settings are
156	# -color, -brightness, -width, -linestyle, and -raise. Only
157	# -brightness and -raise do anything.
158	# ----------------------------------------------------------------------
159	itcl::body Rappture::DeviceViewer1D::add {dataobj {settings ""}} {
160	array set params {
161	-color auto
162	-brightness 0
163	-width 1
164	-raise 0
165	-linestyle solid
166	-description ""
167	-param ""
168	}
169	array set params $settings
170
171	set pos [lsearch -exact $_dlist $dataobj]
172
173	if {$pos < 0} {
174	if {![Rappture::library isvalid $dataobj]} {
175	error "bad value \"$dataobj\": should be Rappture::library object"
176	}
177
178	lappend _dlist $dataobj
179	set _dobj2raise($dataobj) $params(-raise)
180
181	after cancel [list catch [itcl::code $this _loadDevice]]
182	after idle [list catch [itcl::code $this _loadDevice]]
183	}
184	}
185
186	# ----------------------------------------------------------------------
187	# USAGE: get
188	#
189	# Clients use this to query the list of objects being plotted, in
190	# order from bottom to top of this result.
191	# ----------------------------------------------------------------------
192	itcl::body Rappture::DeviceViewer1D::get {} {
193	# put the dataobj list in order according to -raise options
194	set dlist $_dlist
195	foreach obj $dlist {
196	if {[info exists _dobj2raise($obj)] && $_dobj2raise($obj)} {
197	set i [lsearch -exact $dlist $obj]
198	if {$i >= 0} {
199	set dlist [lreplace $dlist $i $i]
200	lappend dlist $obj
201	}
202	}
203	}
204	return $dlist
205	}
206
207	# ----------------------------------------------------------------------
208	# USAGE: delete ?<dataobj> <dataobj> ...?
209	#
210	# Clients use this to delete a dataobj from the plot. If no dataobjs
211	# are specified, then all dataobjs are deleted.
212	# ----------------------------------------------------------------------
213	itcl::body Rappture::DeviceViewer1D::delete {args} {
214	if {[llength $args] == 0} {
215	set args $_dlist
216	}
217
218	# delete all specified dataobjs
219	set changed 0
220	foreach dataobj $args {
221	set pos [lsearch -exact $_dlist $dataobj]
222	if {$pos >= 0} {
223	set _dlist [lreplace $_dlist $pos $pos]
224	catch {unset _dobj2raise($dataobj)}
225	set changed 1
226	}
227	}
228
229	# if anything changed, then rebuild the plot
230	if {$changed} {
231	after cancel [list catch [itcl::code $this _loadDevice]]
232	after idle [list catch [itcl::code $this _loadDevice]]
233	}
234	}
235
236	# ----------------------------------------------------------------------
237	# USAGE: controls insert <pos> <xmlobj> <path>
238	#
239	# Clients use this to add a control to the internal panels of this
240	# widget. Such controls are usually placed at the top of the widget,
241	# but if possible, they are integrated directly onto the device
242	# layout or the field area.
243	# ----------------------------------------------------------------------
244	itcl::body Rappture::DeviceViewer1D::controls {option args} {
245	switch -- $option {
246	insert {
247	if {[llength $args] != 3} {
248	error "wrong # args: should be \"controls insert pos xmlobj path\""
249	}
250	set pos [lindex $args 0]
251	set xmlobj [lindex $args 1]
252	set path [lindex $args 2]
253	if {[string match structure.parameters $path]} {
254	} elseif {[string match structure.components* $path]} {
255	$itk_component(layout) controls insert $pos $xmlobj $path
256	}
257	}
258	default {
259	error "bad option \"$option\": should be insert"
260	}
261	}
262	}
263
264
265	# ----------------------------------------------------------------------
266	# USAGE: download coming
267	# USAGE: download controls <downloadCommand>
268	# USAGE: download now
269	#
270	# Clients use this method to create a downloadable representation
271	# of the plot. Returns a list of the form {ext string}, where
272	# "ext" is the file extension (indicating the type of data) and
273	# "string" is the data itself.
274	# ----------------------------------------------------------------------
275	itcl::body Rappture::DeviceViewer1D::download {option args} {
276	switch $option {
277	coming {
278	# nothing to do
279	}
280	controls {
281	# no controls for this download yet
282	return ""
283	}
284	now {
285	return "" ;# not implemented yet!
286	}
287	default {
288	error "bad option \"$option\": should be coming, controls, now"
289	}
290	}
291	}
292
293	# ----------------------------------------------------------------------
294	# USAGE: _loadDevice
295	#
296	# Used internally to search for fields and create corresponding
297	# tabs whenever a device is installed into this viewer.
298	# ----------------------------------------------------------------------
299	itcl::body Rappture::DeviceViewer1D::_loadDevice {} {
300	set _device [lindex [get] end]
301
302	#
303	# Release any info left over from the last device.
304	#
305	foreach name [array names _tab2fields] {
306	eval itcl::delete object $_tab2fields($name)
307	}
308	catch {unset _tab2fields}
309	catch {unset _field2parm}
310
311	if {[winfo exists $itk_component(top).cntls]} {
312	$itk_component(top).cntls delete 0 end
313	}
314
315	#
316	# Scan through the current device and extract the list of
317	# fields. Create a tab for each field.
318	#
319	if {$_device != ""} {
320	foreach nn [$_device children fields] {
321	set name [$_device get fields.$nn.about.label]
322	if {$name == ""} {
323	set name $nn
324	}
325
326	set fobj [Rappture::Field ::#auto $_device fields.$nn]
327	lappend _tab2fields($name) $fobj
328	}
329	}
330	set tabs [lsort [array names _tab2fields]]
331
332	if {[$itk_component(tabs) size] > 0} {
333	$itk_component(tabs) delete 0 end
334	}
335
336	if {[llength $tabs] <= 0} {
337	#
338	# No fields? Then we don't need to bother with tabs.
339	# Just pack the inner frame directly. If there are no
340	# fields, get rid of the graph.
341	#
342	pack $itk_component(inner) -expand yes -fill both
343	if {[llength $tabs] > 0} {
344	pack $itk_component(graph) -expand yes -fill both
345	} else {
346	pack forget $itk_component(graph)
347	$itk_component(layout) configure -leftmargin 0 -rightmargin 0
348	}
349	} else {
350	#
351	# Two or more fields? Then create a tab for each field
352	# and select the first one by default. Make sure the
353	# graph is packed.
354	#
355	pack forget $itk_component(inner)
356	pack $itk_component(graph) -expand yes -fill both
357
358	foreach name $tabs {
359	$itk_component(tabs) insert end $name \
360	-activebackground $itk_option(-background)
361	}
362	$itk_component(tabs) select 0
363	}
364
365	#
366	# Scan through and look for any parameters in the <structure>.
367	# Register any parameters associated with fields, so we can
368	# add them as active controls whenever we install new fields.
369	# Create controls for any remaining parameters, so the user
370	# can see that there's something to adjust.
371	#
372	if {$_device != ""} {
373	_loadParameters $itk_component(top) parameters
374	}
375
376	#
377	# Install the first tab
378	#
379	_changeTabs
380
381	#
382	# Fix the right margin of the graph so that it has enough room
383	# to display the right-hand edge of the device.
384	#
385	$itk_component(graph) configure \
386	-rightmargin [$itk_component(layout) extents bar3D]
387
388	after cancel [list catch [itcl::code $this _fixSize]]
389	after idle [list catch [itcl::code $this _fixSize]]
390	}
391
392	# ----------------------------------------------------------------------
393	# USAGE: _loadParameters <frame> <path>
394	#
395	# Used internally in _loadDevice to load child parameters at the
396	# specified <path> into the <frame>. If any of the children are
397	# groups, then this is called recursively to fill in the group
398	# children.
399	# ----------------------------------------------------------------------
400	itcl::body Rappture::DeviceViewer1D::_loadParameters {frame path} {
401	foreach cname [$_device children $path] {
402	set handled 0
403	set type [$_device element -as type $path.$cname]
404	if {$type == "about"} {
405	continue
406	}
407	if {$type == "number"} {
408	set name [$_device element -as id $path.$cname]
409
410	# look for a field that uses this parameter
411	set found ""
412	foreach fname [$_device children fields] {
413	foreach comp [$_device children fields.$fname] {
414	set v [$_device get fields.$fname.$comp.constant]
415	if {[string equal $v $name]} {
416	set found "fields.$fname.$comp"
417	break
418	}
419	}
420	if {"" != $found} break
421	}
422
423	if {"" != $found} {
424	set _field2parm($found) $name
425	set handled 1
426	}
427	}
428
429	#
430	# Any parameter that was not handled above should be handled
431	# here, by adding it to a control panel above the device
432	# layout area.
433	#
434	if {!$handled} {
435	if {![winfo exists $frame.cntls]} {
436	Rappture::Controls $frame.cntls $_owner
437	pack $frame.cntls -expand yes -fill both
438	}
439	$frame.cntls insert end $path.$cname
440
441	#
442	# If this is a group, then we must add its children
443	# recursively.
444	#
445	if {$type == "group"} {
446	set gr [$frame.cntls control -value end]
447	_loadParameters [$gr component inner] $path.$cname
448	}
449	}
450	}
451	}
452
453	# ----------------------------------------------------------------------
454	# USAGE: _changeTabs ?-user\|-program?
455	#
456	# Used internally to change the field being displayed whenever a new
457	# tab is selected.
458	# ----------------------------------------------------------------------
459	itcl::body Rappture::DeviceViewer1D::_changeTabs {{why -program}} {
460	set graph $itk_component(graph)
461
462	#
463	# Figure out which tab is selected and make the inner frame
464	# visible in that tab.
465	#
466	set i [$itk_component(tabs) index select]
467	if {$i != ""} {
468	set name [$itk_component(tabs) get $i]
469	$itk_component(tabs) tab configure $name \
470	-window $itk_component(inner) -fill both
471	} else {
472	set name [lindex [array names _tab2fields] 0]
473	}
474
475	if {$why eq "-user"} {
476	Rappture::Logger::log device1D -field $name
477	}
478
479	#
480	# Update the graph to show the current field.
481	#
482	eval $graph element delete [$graph element names]
483	eval $graph marker delete [$graph marker names]
484
485	foreach {zmin zmax} [$itk_component(layout) limits] { break }
486	if {$zmin != "" && $zmin < $zmax} {
487	$graph axis configure x -min $zmin -max $zmax
488	}
489
490	if {$_device != ""} {
491	set units [$_device get units]
492	if {$units != "arbitrary"} {
493	$graph axis configure x -hide no -title "Position ($units)"
494	} else {
495	$graph axis configure x -hide yes
496	}
497	} else {
498	$graph axis configure x -hide no -title "Position"
499	}
500	$graph axis configure x -checklimits no
501
502	# turn on auto limits
503	$graph axis configure y -min "" -max "" -checklimits no
504
505	set flist ""
506	if {[info exists _tab2fields($name)]} {
507	set flist $_tab2fields($name)
508	}
509
510	set n 0
511	foreach fobj $flist {
512	catch {unset hints}
513	array set hints [$fobj hints]
514
515	if {[info exists hints(units)]} {
516	set _units $hints(units)
517	$graph axis configure y -title "$name ($hints(units))"
518	} else {
519	set _units ""
520	$graph axis configure y -title $name
521	}
522
523	if {[info exists hints(scale)]
524	&& [string match log* $hints(scale)]} {
525	$graph axis configure y -logscale yes
526	} else {
527	$graph axis configure y -logscale no
528	}
529
530	foreach comp [$fobj components] {
531	# can only handle 1D meshes here
532	if {[$fobj components -dimensions $comp] != "1D"} {
533	continue
534	}
535
536	set elem "elem[incr n]"
537	set xv [$fobj mesh $comp]
538	set yv [$fobj values $comp]
539
540	$graph element create $elem -x $xv -y $yv \
541	-color black -symbol "" -linewidth 2
542
543	if {[info exists hints(color)]} {
544	$graph element configure $elem -color $hints(color)
545	}
546
547	foreach {path x y val} [$fobj controls get $comp] {
548	if {$path != ""} {
549	set id "control[incr n]"
550	$graph marker create text -coords [list $x $y] \
551	-text $val -anchor s -name $id -background ""
552	$graph marker bind $id <Enter> \
553	[itcl::code $this _marker enter $id]
554	$graph marker bind $id <Leave> \
555	[itcl::code $this _marker leave $id]
556	$graph marker bind $id <ButtonPress> \
557	[itcl::code $this _marker edit $id $fobj/$path]
558	}
559	}
560	}
561	}
562
563	# let the widget settle, then fix the axes to "nice" values
564	after cancel [list catch [itcl::code $this _fixAxes]]
565	after 100 [list catch [itcl::code $this _fixAxes]]
566	}
567
568	# ----------------------------------------------------------------------
569	# USAGE: _fixSize
570	#
571	# Used internally to fix the overall size of this widget based on
572	# the various parts inside. Sets the requested width/height of the
573	# widget so that it is big enough to display the device and its
574	# fields.
575	# ----------------------------------------------------------------------
576	itcl::body Rappture::DeviceViewer1D::_fixSize {} {
577	update idletasks
578	set w [winfo reqwidth $itk_component(tabs)]
579	set h [winfo reqheight $itk_component(tabs)]
580	component hull configure -width $w -height $h
581	}
582
583	# ----------------------------------------------------------------------
584	# USAGE: _fixAxes
585	#
586	# Used internally to adjust the y-axis limits of the graph to "nice"
587	# values, so that any control marker associated with the value,
588	# for example, remains on screen.
589	# ----------------------------------------------------------------------
590	itcl::body Rappture::DeviceViewer1D::_fixAxes {} {
591	set graph $itk_component(graph)
592	if {![winfo ismapped $graph]} {
593	after cancel [list catch [itcl::code $this _fixAxes]]
594	after 100 [list catch [itcl::code $this _fixAxes]]
595	return
596	}
597
598	#
599	# HACK ALERT!
600	# Use this code to fix up the y-axis limits for the BLT graph.
601	# The auto-limits don't always work well. We want them to be
602	# set to a "nice" number slightly above or below the min/max
603	# limits.
604	#
605	set log [$graph axis cget y -logscale]
606	$graph axis configure y -min "" -max ""
607	foreach {min max} [$graph axis limits y] { break }
608
609	if {$log} {
610	set min [expr {0.9*$min}]
611	set max [expr {1.1*$max}]
612	} else {
613	if {$min > 0} {
614	set min [expr {0.95*$min}]
615	} else {
616	set min [expr {1.05*$min}]
617	}
618	if {$max > 0} {
619	set max [expr {1.05*$max}]
620	} else {
621	set max [expr {0.95*$max}]
622	}
623	}
624
625	# bump up the max so that it's big enough to show control markers
626	set fnt $itk_option(-font)
627	set h [expr {[font metrics $fnt -linespace] + 5}]
628	foreach mname [$graph marker names] {
629	set xy [$graph marker cget $mname -coord]
630	foreach {x y} [eval $graph transform $xy] { break }
631	set y [expr {$y-$h}] ;# find top of text in pixels
632	foreach {x y} [eval $graph invtransform [list 0 $y]] { break }
633	if {$y > $max} { set max $y }
634	}
635
636	if {$log} {
637	set min [expr {pow(10.0,floor(log10($min)))}]
638	set max [expr {pow(10.0,ceil(log10($max)))}]
639	} else {
640	set min [expr {0.1floor(10$min)}]
641	set max [expr {0.1ceil(10$max)}]
642	}
643
644	$graph axis configure y -min $min -max $max
645
646	after cancel [list catch [itcl::code $this _align]]
647	after 100 [list catch [itcl::code $this _align]]
648	}
649
650	# ----------------------------------------------------------------------
651	# USAGE: _align
652	#
653	# Used internally to align the margins of the device layout and the
654	# graph, so that two areas line up.
655	# ----------------------------------------------------------------------
656	itcl::body Rappture::DeviceViewer1D::_align {} {
657	set graph $itk_component(graph)
658
659	#
660	# Set the left/right margins of the layout so that it aligns
661	# with the graph. Set the right margin of the graph so it
662	# it is big enough to show the 3D edge of the device that
663	# hangs over on the right-hand side.
664	#
665	update
666	foreach {xmin xmax} [$graph axis limits x] { break }
667	set lm [$graph xaxis transform $xmin]
668	$itk_component(layout) configure -leftmargin $lm
669
670	set w [winfo width $graph]
671	set rm [expr {$w-[$graph xaxis transform $xmax]}]
672	$itk_component(layout) configure -rightmargin $rm
673	}
674
675	# ----------------------------------------------------------------------
676	# USAGE: _marker enter <name>
677	# USAGE: _marker leave <name>
678	# USAGE: _marker edit <name> <path>
679	# USAGE: _marker activate
680	# USAGE: _marker validate <value>
681	# USAGE: _marker apply <value>
682	#
683	# Used internally to manipulate the control markers draw on the
684	# graph for a field.
685	# ----------------------------------------------------------------------
686	itcl::body Rappture::DeviceViewer1D::_marker {option {name ""} {path ""}} {
687	switch -- $option {
688	enter {
689	$itk_component(graph) marker configure $name -background #e5e5e5
690	#
691	# BE CAREFUL: Need an update here to force the graph to
692	# refresh itself or else a subsequent click on the
693	# marker will ignore the text that was recently changed,
694	# and fail to generate a <ButtonPress> event!
695	#
696	update idletasks
697	}
698	leave {
699	$itk_component(graph) marker configure $name -background ""
700	#
701	# BE CAREFUL: Need an update here to force the graph to
702	# refresh itself or else a subsequent click on the
703	# marker will ignore the text that was recently changed,
704	# and fail to generate a <ButtonPress> event!
705	#
706	update idletasks
707	}
708	edit {
709	set _marker(name) $name
710	set _marker(fobj) [lindex [split $path /] 0]
711	set _marker(path) [lindex [split $path /] 1]
712	$itk_component(geditor) activate
713	}
714	activate {
715	set g $itk_component(graph)
716	set val [$g marker cget $_marker(name) -text]
717	foreach {x y} [$g marker cget $_marker(name) -coords] { break }
718	foreach {x y} [$g transform $x $y] { break }
719	set x [expr {$x + [winfo rootx $g] - 4}]
720	set y [expr {$y + [winfo rooty $g] - 5}]
721
722	set fnt $itk_option(-font)
723	set h [expr {[font metrics $fnt -linespace] + 2}]
724	set w [expr {[font measure $fnt $val] + 5}]
725
726	return [list text $val \
727	x [expr {$x-$w/2}] \
728	y [expr {$y-$h}] \
729	w $w \
730	h $h]
731	}
732	validate {
733	if {$_units != ""} {
734	if {[catch {Rappture::Units::convert $name \
735	-context $_units -to $_units} result] != 0} {
736	if {[regexp {^bad.*: +(.)(.+)} $result match first tail]
737	\|\| [regexp {(.)(.+)} $result match first tail]} {
738	set result "[string toupper $first]$tail"
739	}
740	bell
741	Rappture::Tooltip::cue $itk_component(geditor) $result
742	Rappture::Logger::log warning $_marker(path) $result
743	return 0
744	}
745	}
746	if {[catch {$_marker(fobj) controls validate $_marker(path) $name} result]} {
747	bell
748	Rappture::Tooltip::cue $itk_component(geditor) $result
749	Rappture::Logger::log warning $_marker(path) $result
750	return 0
751	}
752	return 1
753	}
754	apply {
755	if {$_units != ""} {
756	catch {Rappture::Units::convert $name \
757	-context $_units -to $_units} value
758	} else {
759	set value $name
760	}
761
762	$_marker(fobj) controls put $_marker(path) $value
763	$_owner changed $_marker(path)
764	event generate $itk_component(hull) <<Edit>>
765	Rappture::Logger::log input $_marker(path) $value
766
767	_changeTabs
768	}
769	}
770	}
771
772	# ----------------------------------------------------------------------
773	# USAGE: _controlCreate <container> <libObj> <path>
774	#
775	# Used internally to create a gauge widget and pack it into the
776	# given <container>. When the gauge is set, it updates the value
777	# for the <path> in the <libObj>.
778	# ----------------------------------------------------------------------
779	itcl::body Rappture::DeviceViewer1D::_controlCreate {container libObj path} {
780	set presets ""
781	foreach pre [$libObj children -type preset $path] {
782	lappend presets \
783	[$libObj get $path.$pre.value] \
784	[$libObj get $path.$pre.label]
785	}
786
787	set type Rappture::Gauge
788	set units [$libObj get $path.units]
789	if {$units != ""} {
790	set desc [Rappture::Units::description $units]
791	if {[string match temperature* $desc]} {
792	set type Rappture::TemperatureGauge
793	}
794	}
795
796	set counter 0
797	set w "$container.gauge[incr counter]"
798	while {[winfo exists $w]} {
799	set w "$container.gauge[incr counter]"
800	}
801
802	# create the widget
803	$type $w -units $units -presets $presets -log $path
804	pack $w -side top -anchor w
805	bind $w <<Value>> [itcl::code $this _controlSet $w $libObj $path]
806
807	set min [$libObj get $path.min]
808	if {"" != $min} { $w configure -minvalue $min }
809
810	set max [$libObj get $path.max]
811	if {"" != $max} { $w configure -maxvalue $max }
812
813	set str [$libObj get $path.default]
814	if {$str != ""} { $w value $str }
815
816	if {$type == "Rappture::Gauge" && "" != $min && "" != $max} {
817	set color [$libObj get $path.color]
818	if {$color == ""} {
819	set color blue
820	}
821	if {$units != ""} {
822	set min [Rappture::Units::convert $min -to $units -units off]
823	set max [Rappture::Units::convert $max -to $units -units off]
824	}
825	$w configure -spectrum [Rappture::Spectrum ::#auto [list \
826	$min white $max $color] -units $units]
827	}
828
829	set str [$libObj get $path.label]
830	if {$str != ""} {
831	set help [$libObj get $path.help]
832	if {"" != $help} {
833	append str "\n$help"
834	}
835	if {$units != ""} {
836	set desc [Rappture::Units::description $units]
837	append str "\n(units of $desc)"
838	}
839	Rappture::Tooltip::for $w $str
840	}
841
842	set str [$libObj get $path.icon]
843	if {$str != ""} {
844	$w configure -image [image create photo -data $str]
845	}
846	}
847
848	# ----------------------------------------------------------------------
849	# USAGE: _controlSet <widget> <libObj> <path>
850	#
851	# Invoked automatically whenever an internal control changes value.
852	# Queries the new value for the control and assigns the value to the
853	# given <path> on the XML object <libObj>.
854	# ----------------------------------------------------------------------
855	itcl::body Rappture::DeviceViewer1D::_controlSet {widget libObj path} {
856	set newval [$widget value]
857	$libObj put $path.current $newval
858	event generate $itk_component(hull) <<Edit>>
859	}
860
861	# ----------------------------------------------------------------------
862	# CONFIGURATION OPTION: -device
863	#
864	# Set to the Rappture::Library object representing the device being
865	# displayed in the viewer. If set to "", the viewer is cleared to
866	# display nothing.
867	# ----------------------------------------------------------------------
868	itcl::configbody Rappture::DeviceViewer1D::device {
869	if {$itk_option(-device) != ""} {
870	if {![Rappture::library isvalid $itk_option(-device)]} {
871	error "bad value \"$itk_option(-device)\": should be Rappture::Library"
872	}
873	}
874
875	delete
876	if {"" != $itk_option(-device)} {
877	add $itk_option(-device)
878	}
879	_loadDevice
880	}

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