1 | # ---------------------------------------------------------------------- |
---|
2 | # COMPONENT: MoleculeViewer - view a molecule in 3D |
---|
3 | # |
---|
4 | # This widget brings up a 3D representation of a molecule, which you |
---|
5 | # can rotate. It extracts atoms and bonds from the Rappture XML |
---|
6 | # representation for a <molecule>. |
---|
7 | # ====================================================================== |
---|
8 | # AUTHOR: Michael McLennan, Purdue University |
---|
9 | # Copyright (c) 2004-2005 |
---|
10 | # Purdue Research Foundation, West Lafayette, IN |
---|
11 | # ====================================================================== |
---|
12 | package require Itk |
---|
13 | package require vtk |
---|
14 | package require vtkinteraction |
---|
15 | package require BLT |
---|
16 | |
---|
17 | option add *MoleculeViewer.width 5i widgetDefault |
---|
18 | option add *MoleculeViewer.height 5i widgetDefault |
---|
19 | option add *MoleculeViewer.backdrop black widgetDefault |
---|
20 | |
---|
21 | blt::bitmap define MoleculeViewer-reset { |
---|
22 | #define reset_width 12 |
---|
23 | #define reset_height 12 |
---|
24 | static unsigned char reset_bits[] = { |
---|
25 | 0x00, 0x00, 0x00, 0x00, 0xfc, 0x03, 0x04, 0x02, 0x04, 0x02, 0x04, 0x02, |
---|
26 | 0x04, 0x02, 0x04, 0x02, 0x04, 0x02, 0xfc, 0x03, 0x00, 0x00, 0x00, 0x00}; |
---|
27 | } |
---|
28 | |
---|
29 | blt::bitmap define MoleculeViewer-zoomin { |
---|
30 | #define zoomin_width 12 |
---|
31 | #define zoomin_height 12 |
---|
32 | static unsigned char zoomin_bits[] = { |
---|
33 | 0x7c, 0x00, 0x82, 0x00, 0x11, 0x01, 0x11, 0x01, 0x7d, 0x01, 0x11, 0x01, |
---|
34 | 0x11, 0x01, 0x82, 0x03, 0xfc, 0x07, 0x80, 0x0f, 0x00, 0x0f, 0x00, 0x06}; |
---|
35 | } |
---|
36 | |
---|
37 | blt::bitmap define MoleculeViewer-zoomout { |
---|
38 | #define zoomout_width 12 |
---|
39 | #define zoomout_height 12 |
---|
40 | static unsigned char zoomout_bits[] = { |
---|
41 | 0x7c, 0x00, 0x82, 0x00, 0x01, 0x01, 0x01, 0x01, 0x7d, 0x01, 0x01, 0x01, |
---|
42 | 0x01, 0x01, 0x82, 0x03, 0xfc, 0x07, 0x80, 0x0f, 0x00, 0x0f, 0x00, 0x06}; |
---|
43 | } |
---|
44 | |
---|
45 | blt::bitmap define MoleculeViewer-atoms { |
---|
46 | #define atoms_width 12 |
---|
47 | #define atoms_height 12 |
---|
48 | static unsigned char atoms_bits[] = { |
---|
49 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x02, 0x4c, 0x02, 0xc8, 0x03, |
---|
50 | 0x48, 0x02, 0x48, 0x02, 0x5c, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; |
---|
51 | } |
---|
52 | |
---|
53 | itcl::class Rappture::MoleculeViewer { |
---|
54 | inherit itk::Widget |
---|
55 | |
---|
56 | itk_option define -backdrop backdrop Backdrop "black" |
---|
57 | itk_option define -device device Device "" |
---|
58 | |
---|
59 | constructor {tool args} { # defined below } |
---|
60 | destructor { # defined below } |
---|
61 | |
---|
62 | public method emblems {option} |
---|
63 | |
---|
64 | protected method _clear {} |
---|
65 | protected method _redraw {} |
---|
66 | protected method _zoom {option} |
---|
67 | protected method _move {option x y} |
---|
68 | protected method _3dView {theta phi} |
---|
69 | protected method _color2rgb {color} |
---|
70 | |
---|
71 | private variable _dispatcher "" ;# dispatcher for !events |
---|
72 | |
---|
73 | private variable _tool "" ;# tool containing this viewer |
---|
74 | private variable _actors "" ;# list of actors in renderer |
---|
75 | private variable _label2atom ;# maps 2D text actor => underlying atom |
---|
76 | private variable _view ;# view params for 3D view |
---|
77 | private variable _limits ;# limits of x/y/z axes |
---|
78 | private variable _click ;# info used for _move operations |
---|
79 | } |
---|
80 | |
---|
81 | itk::usual MoleculeViewer { |
---|
82 | } |
---|
83 | |
---|
84 | # ---------------------------------------------------------------------- |
---|
85 | # CONSTRUCTOR |
---|
86 | # ---------------------------------------------------------------------- |
---|
87 | itcl::body Rappture::MoleculeViewer::constructor {tool args} { |
---|
88 | set _tool $tool |
---|
89 | |
---|
90 | Rappture::dispatcher _dispatcher |
---|
91 | $_dispatcher register !redraw |
---|
92 | $_dispatcher dispatch $this !redraw "[itcl::code $this _redraw]; list" |
---|
93 | $_dispatcher register !render |
---|
94 | $_dispatcher dispatch $this !render "$this-renWin Render; list" |
---|
95 | $_dispatcher register !fixsize |
---|
96 | $_dispatcher dispatch $this !fixsize \ |
---|
97 | "[itcl::code $this emblems fixPosition]; list" |
---|
98 | |
---|
99 | itk_option add hull.width hull.height |
---|
100 | pack propagate $itk_component(hull) no |
---|
101 | |
---|
102 | vtkRenderWindow $this-renWin |
---|
103 | vtkRenderer $this-ren |
---|
104 | $this-renWin AddRenderer $this-ren |
---|
105 | |
---|
106 | vtkRenderWindowInteractor $this-int |
---|
107 | $this-int SetRenderWindow $this-renWin |
---|
108 | |
---|
109 | vtkSphereSource $this-sphere |
---|
110 | $this-sphere SetRadius 1.0 |
---|
111 | $this-sphere SetThetaResolution 18 |
---|
112 | $this-sphere SetPhiResolution 18 |
---|
113 | |
---|
114 | vtkPolyDataMapper $this-map |
---|
115 | $this-map SetInput [$this-sphere GetOutput] |
---|
116 | |
---|
117 | vtkCoordinate $this-xyzconv |
---|
118 | $this-xyzconv SetCoordinateSystemToWorld |
---|
119 | |
---|
120 | set _view(theta) 0 |
---|
121 | set _view(phi) 0 |
---|
122 | |
---|
123 | itk_component add controls { |
---|
124 | frame $itk_interior.cntls |
---|
125 | } { |
---|
126 | usual |
---|
127 | rename -background -controlbackground controlBackground Background |
---|
128 | } |
---|
129 | pack $itk_component(controls) -side right -fill y |
---|
130 | |
---|
131 | itk_component add reset { |
---|
132 | button $itk_component(controls).reset \ |
---|
133 | -borderwidth 1 -padx 1 -pady 1 \ |
---|
134 | -bitmap MoleculeViewer-reset \ |
---|
135 | -command [itcl::code $this _zoom reset] |
---|
136 | } { |
---|
137 | usual |
---|
138 | ignore -borderwidth |
---|
139 | rename -highlightbackground -controlbackground controlBackground Background |
---|
140 | } |
---|
141 | pack $itk_component(reset) -padx 4 -pady 4 |
---|
142 | Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level" |
---|
143 | |
---|
144 | itk_component add zoomin { |
---|
145 | button $itk_component(controls).zin \ |
---|
146 | -borderwidth 1 -padx 1 -pady 1 \ |
---|
147 | -bitmap MoleculeViewer-zoomin \ |
---|
148 | -command [itcl::code $this _zoom in] |
---|
149 | } { |
---|
150 | usual |
---|
151 | ignore -borderwidth |
---|
152 | rename -highlightbackground -controlbackground controlBackground Background |
---|
153 | } |
---|
154 | pack $itk_component(zoomin) -padx 4 -pady 4 |
---|
155 | Rappture::Tooltip::for $itk_component(zoomin) "Zoom in" |
---|
156 | |
---|
157 | itk_component add zoomout { |
---|
158 | button $itk_component(controls).zout \ |
---|
159 | -borderwidth 1 -padx 1 -pady 1 \ |
---|
160 | -bitmap MoleculeViewer-zoomout \ |
---|
161 | -command [itcl::code $this _zoom out] |
---|
162 | } { |
---|
163 | usual |
---|
164 | ignore -borderwidth |
---|
165 | rename -highlightbackground -controlbackground controlBackground Background |
---|
166 | } |
---|
167 | pack $itk_component(zoomout) -padx 4 -pady 4 |
---|
168 | Rappture::Tooltip::for $itk_component(zoomout) "Zoom out" |
---|
169 | |
---|
170 | itk_component add labels { |
---|
171 | label $itk_component(controls).labels \ |
---|
172 | -borderwidth 1 -padx 1 -pady 1 \ |
---|
173 | -bitmap MoleculeViewer-atoms |
---|
174 | } { |
---|
175 | usual |
---|
176 | ignore -borderwidth |
---|
177 | rename -highlightbackground -controlbackground controlBackground Background |
---|
178 | } |
---|
179 | pack $itk_component(labels) -padx 4 -pady 8 -ipadx 1 -ipady 1 |
---|
180 | Rappture::Tooltip::for $itk_component(labels) "Show/hide the labels on atoms" |
---|
181 | bind $itk_component(labels) <ButtonPress> \ |
---|
182 | [itcl::code $this emblems toggle] |
---|
183 | |
---|
184 | # |
---|
185 | # RENDERING AREA |
---|
186 | # |
---|
187 | itk_component add area { |
---|
188 | frame $itk_interior.area |
---|
189 | } |
---|
190 | pack $itk_component(area) -expand yes -fill both |
---|
191 | bind $itk_component(area) <Configure> \ |
---|
192 | [list $_dispatcher event -idle !fixsize] |
---|
193 | |
---|
194 | itk_component add renderer { |
---|
195 | vtkTkRenderWidget $itk_component(area).ren -rw $this-renWin |
---|
196 | } { |
---|
197 | } |
---|
198 | pack $itk_component(renderer) -expand yes -fill both |
---|
199 | |
---|
200 | eval itk_initialize $args |
---|
201 | |
---|
202 | # prevent interactions -- use our own |
---|
203 | blt::busy hold $itk_component(area) -cursor left_ptr |
---|
204 | bind $itk_component(area)_Busy <ButtonPress> \ |
---|
205 | [itcl::code $this _move click %x %y] |
---|
206 | bind $itk_component(area)_Busy <B1-Motion> \ |
---|
207 | [itcl::code $this _move drag %x %y] |
---|
208 | bind $itk_component(area)_Busy <ButtonRelease> \ |
---|
209 | [itcl::code $this _move release %x %y] |
---|
210 | |
---|
211 | emblems on |
---|
212 | } |
---|
213 | |
---|
214 | # ---------------------------------------------------------------------- |
---|
215 | # DESTRUCTOR |
---|
216 | # ---------------------------------------------------------------------- |
---|
217 | itcl::body Rappture::MoleculeViewer::destructor {} { |
---|
218 | rename $this-renWin "" |
---|
219 | rename $this-ren "" |
---|
220 | rename $this-int "" |
---|
221 | rename $this-sphere "" |
---|
222 | rename $this-map "" |
---|
223 | rename $this-xyzconv "" |
---|
224 | } |
---|
225 | |
---|
226 | # ---------------------------------------------------------------------- |
---|
227 | # USAGE: _clear |
---|
228 | # |
---|
229 | # Used internally to clear the scene whenever it is about to change. |
---|
230 | # ---------------------------------------------------------------------- |
---|
231 | itcl::body Rappture::MoleculeViewer::_clear {} { |
---|
232 | foreach a $_actors { |
---|
233 | $this-ren RemoveActor $a |
---|
234 | rename $a "" |
---|
235 | } |
---|
236 | set _actors "" |
---|
237 | catch {unset _label2atom} |
---|
238 | |
---|
239 | foreach lim {xmin xmax ymin ymax zmin zmax} { |
---|
240 | set _limits($lim) "" |
---|
241 | } |
---|
242 | |
---|
243 | $this-ren ResetCamera |
---|
244 | $_dispatcher event -now !render |
---|
245 | } |
---|
246 | |
---|
247 | # ---------------------------------------------------------------------- |
---|
248 | # USAGE: _redraw |
---|
249 | # |
---|
250 | # Used internally to rebuild the scene whenever options within this |
---|
251 | # widget change. Destroys all actors and rebuilds them from scratch. |
---|
252 | # ---------------------------------------------------------------------- |
---|
253 | itcl::body Rappture::MoleculeViewer::_redraw {} { |
---|
254 | blt::busy hold $itk_component(hull); update |
---|
255 | |
---|
256 | _clear |
---|
257 | |
---|
258 | if {$itk_option(-device) != ""} { |
---|
259 | set dev $itk_option(-device) |
---|
260 | set lib [Rappture::library standard] |
---|
261 | |
---|
262 | set counter 0 |
---|
263 | foreach atom [$dev children -type atom components.molecule] { |
---|
264 | set symbol [$dev get components.molecule.$atom.symbol] |
---|
265 | set xyz [$dev get components.molecule.$atom.xyz] |
---|
266 | regsub {,} $xyz {} xyz |
---|
267 | |
---|
268 | # update overall limits for molecules along all axes |
---|
269 | foreach axis {x y z} val $xyz { |
---|
270 | if {"" == $_limits(${axis}min)} { |
---|
271 | set _limits(${axis}min) $val |
---|
272 | set _limits(${axis}max) $val |
---|
273 | } else { |
---|
274 | if {$val < $_limits(${axis}min)} { |
---|
275 | set _limits(${axis}min) $val |
---|
276 | } |
---|
277 | if {$val > $_limits(${axis}max)} { |
---|
278 | set _limits(${axis}max) $val |
---|
279 | } |
---|
280 | } |
---|
281 | } |
---|
282 | |
---|
283 | # create an actor for each atom |
---|
284 | set aname $this-actor[incr counter] |
---|
285 | vtkActor $aname |
---|
286 | $aname SetMapper $this-map |
---|
287 | eval $aname SetPosition $xyz |
---|
288 | $this-ren AddActor $aname |
---|
289 | |
---|
290 | set sfac 0.7 |
---|
291 | set scale [$lib get elements.($symbol).scale] |
---|
292 | if {$scale != ""} { |
---|
293 | $aname SetScale [expr {$sfac*$scale}] |
---|
294 | } |
---|
295 | set color [$lib get elements.($symbol).color] |
---|
296 | if {$color != ""} { |
---|
297 | eval [$aname GetProperty] SetColor [_color2rgb $color] |
---|
298 | } |
---|
299 | |
---|
300 | lappend _actors $aname |
---|
301 | |
---|
302 | # create a label for each atom |
---|
303 | set lname $this-label$counter |
---|
304 | vtkTextActor $lname |
---|
305 | $lname SetInput "$counter $symbol" |
---|
306 | $lname ScaledTextOff |
---|
307 | |
---|
308 | set tprop [$lname GetTextProperty] |
---|
309 | $tprop SetJustificationToCentered |
---|
310 | $tprop SetVerticalJustificationToCentered |
---|
311 | $tprop ShadowOn |
---|
312 | $tprop SetColor 1 1 1 |
---|
313 | |
---|
314 | set _label2atom($lname) $aname |
---|
315 | lappend _actors $lname |
---|
316 | } |
---|
317 | if {[$itk_component(labels) cget -relief] == "sunken"} { |
---|
318 | emblems on |
---|
319 | } |
---|
320 | _zoom reset |
---|
321 | } |
---|
322 | $this-ren ResetCamera |
---|
323 | $_dispatcher event -idle !render |
---|
324 | |
---|
325 | blt::busy release $itk_component(hull) |
---|
326 | } |
---|
327 | |
---|
328 | # ---------------------------------------------------------------------- |
---|
329 | # USAGE: _zoom in |
---|
330 | # USAGE: _zoom out |
---|
331 | # USAGE: _zoom reset |
---|
332 | # |
---|
333 | # Called automatically when the user clicks on one of the zoom |
---|
334 | # controls for this widget. Changes the zoom for the current view. |
---|
335 | # ---------------------------------------------------------------------- |
---|
336 | itcl::body Rappture::MoleculeViewer::_zoom {option} { |
---|
337 | switch -- $option { |
---|
338 | in { |
---|
339 | [$this-ren GetActiveCamera] Zoom 1.25 |
---|
340 | } |
---|
341 | out { |
---|
342 | [$this-ren GetActiveCamera] Zoom 0.8 |
---|
343 | } |
---|
344 | reset { |
---|
345 | $this-ren ResetCamera |
---|
346 | _3dView 45 45 |
---|
347 | } |
---|
348 | } |
---|
349 | $_dispatcher event -later !fixsize |
---|
350 | $_dispatcher event -idle !render |
---|
351 | } |
---|
352 | |
---|
353 | # ---------------------------------------------------------------------- |
---|
354 | # USAGE: _move click <x> <y> |
---|
355 | # USAGE: _move drag <x> <y> |
---|
356 | # USAGE: _move release <x> <y> |
---|
357 | # |
---|
358 | # Called automatically when the user clicks/drags/releases in the |
---|
359 | # plot area. Moves the plot according to the user's actions. |
---|
360 | # ---------------------------------------------------------------------- |
---|
361 | itcl::body Rappture::MoleculeViewer::_move {option x y} { |
---|
362 | switch -- $option { |
---|
363 | click { |
---|
364 | blt::busy configure $itk_component(area) -cursor fleur |
---|
365 | set _click(x) $x |
---|
366 | set _click(y) $y |
---|
367 | set _click(theta) $_view(theta) |
---|
368 | set _click(phi) $_view(phi) |
---|
369 | } |
---|
370 | drag { |
---|
371 | if {[array size _click] == 0} { |
---|
372 | _move click $x $y |
---|
373 | } else { |
---|
374 | set w [winfo width $itk_component(renderer)] |
---|
375 | set h [winfo height $itk_component(renderer)] |
---|
376 | if {$w <= 0 || $h <= 0} { |
---|
377 | return |
---|
378 | } |
---|
379 | set dx [expr {double($x-$_click(x))/$w}] |
---|
380 | set dy [expr {double($y-$_click(y))/$h}] |
---|
381 | |
---|
382 | # |
---|
383 | # Rotate the camera in 3D |
---|
384 | # |
---|
385 | set theta [expr {$_view(theta) - $dy*180}] |
---|
386 | if {$theta < 2} { set theta 2 } |
---|
387 | if {$theta > 178} { set theta 178 } |
---|
388 | set phi [expr {$_view(phi) - $dx*360}] |
---|
389 | |
---|
390 | _3dView $theta $phi |
---|
391 | emblems fixPosition |
---|
392 | $_dispatcher event -idle !render |
---|
393 | |
---|
394 | set _click(x) $x |
---|
395 | set _click(y) $y |
---|
396 | } |
---|
397 | } |
---|
398 | release { |
---|
399 | _move drag $x $y |
---|
400 | blt::busy configure $itk_component(area) -cursor left_ptr |
---|
401 | catch {unset _click} |
---|
402 | } |
---|
403 | default { |
---|
404 | error "bad option \"$option\": should be click, drag, release" |
---|
405 | } |
---|
406 | } |
---|
407 | } |
---|
408 | |
---|
409 | # ---------------------------------------------------------------------- |
---|
410 | # USAGE: _3dView <theta> <phi> |
---|
411 | # |
---|
412 | # Used internally to change the position of the camera for 3D data |
---|
413 | # sets. Sets the camera according to the angles <theta> (angle from |
---|
414 | # the z-axis) and <phi> (angle from the x-axis in the x-y plane). |
---|
415 | # Both angles are in degrees. |
---|
416 | # ---------------------------------------------------------------------- |
---|
417 | itcl::body Rappture::MoleculeViewer::_3dView {theta phi} { |
---|
418 | set deg2rad 0.0174532927778 |
---|
419 | set xn [expr {sin($theta*$deg2rad)*cos($phi*$deg2rad)}] |
---|
420 | set yn [expr {sin($theta*$deg2rad)*sin($phi*$deg2rad)}] |
---|
421 | set zn [expr {cos($theta*$deg2rad)}] |
---|
422 | |
---|
423 | set xm [expr {0.5*($_limits(xmax)+$_limits(xmin))}] |
---|
424 | set ym [expr {0.5*($_limits(ymax)+$_limits(ymin))}] |
---|
425 | set zm [expr {0.5*($_limits(zmax)+$_limits(zmin))}] |
---|
426 | |
---|
427 | set cam [$this-ren GetActiveCamera] |
---|
428 | set zoom [$cam GetViewAngle] |
---|
429 | $cam SetViewAngle 30 |
---|
430 | |
---|
431 | $cam SetFocalPoint $xm $ym $zm |
---|
432 | $cam SetPosition [expr {$xm-$xn}] [expr {$ym-$yn}] [expr {$zm+$zn}] |
---|
433 | $cam ComputeViewPlaneNormal |
---|
434 | $cam SetViewUp 0 0 1 ;# z-dir is up |
---|
435 | $cam OrthogonalizeViewUp |
---|
436 | $this-ren ResetCamera |
---|
437 | $cam SetViewAngle $zoom |
---|
438 | |
---|
439 | # fix up the labels so they sit over the new atom positions |
---|
440 | emblems fixPosition |
---|
441 | |
---|
442 | set _view(theta) $theta |
---|
443 | set _view(phi) $phi |
---|
444 | } |
---|
445 | |
---|
446 | # ---------------------------------------------------------------------- |
---|
447 | # USAGE: emblems on |
---|
448 | # USAGE: emblems off |
---|
449 | # USAGE: emblems toggle |
---|
450 | # USAGE: emblems fixPosition |
---|
451 | # |
---|
452 | # Used internally to turn labels associated with atoms on/off, and to |
---|
453 | # update the positions of the labels so they sit on top of each atom. |
---|
454 | # ---------------------------------------------------------------------- |
---|
455 | itcl::body Rappture::MoleculeViewer::emblems {option} { |
---|
456 | switch -- $option { |
---|
457 | on { |
---|
458 | set state 1 |
---|
459 | } |
---|
460 | off { |
---|
461 | set state 0 |
---|
462 | } |
---|
463 | toggle { |
---|
464 | if {[$itk_component(labels) cget -relief] == "sunken"} { |
---|
465 | set state 0 |
---|
466 | } else { |
---|
467 | set state 1 |
---|
468 | } |
---|
469 | } |
---|
470 | fixPosition { |
---|
471 | foreach lname [array names _label2atom] { |
---|
472 | set aname $_label2atom($lname) |
---|
473 | set xyz [$aname GetPosition] |
---|
474 | eval $this-xyzconv SetValue $xyz |
---|
475 | set xy [$this-xyzconv GetComputedViewportValue $this-ren] |
---|
476 | eval $lname SetDisplayPosition $xy |
---|
477 | } |
---|
478 | return |
---|
479 | } |
---|
480 | default { |
---|
481 | error "bad option \"$option\": should be on, off, toggle, fixPosition" |
---|
482 | } |
---|
483 | } |
---|
484 | |
---|
485 | if {$state} { |
---|
486 | $itk_component(labels) configure -relief sunken |
---|
487 | foreach lname [array names _label2atom] { |
---|
488 | catch {$this-ren AddActor2D $lname} |
---|
489 | } |
---|
490 | emblems fixPosition |
---|
491 | } else { |
---|
492 | $itk_component(labels) configure -relief raised |
---|
493 | foreach lname [array names _label2atom] { |
---|
494 | catch {$this-ren RemoveActor $lname} |
---|
495 | } |
---|
496 | } |
---|
497 | $_dispatcher event -idle !render |
---|
498 | } |
---|
499 | |
---|
500 | # ---------------------------------------------------------------------- |
---|
501 | # USAGE: _color2rgb color |
---|
502 | # |
---|
503 | # Used internally to convert a Tk color name into the r,g,b values |
---|
504 | # used in Vtk (scaled 0-1). |
---|
505 | # ---------------------------------------------------------------------- |
---|
506 | itcl::body Rappture::MoleculeViewer::_color2rgb {color} { |
---|
507 | foreach {r g b} [winfo rgb $itk_component(hull) $color] {} |
---|
508 | set r [expr {$r/65535.0}] |
---|
509 | set g [expr {$g/65535.0}] |
---|
510 | set b [expr {$b/65535.0}] |
---|
511 | return [list $r $g $b] |
---|
512 | } |
---|
513 | |
---|
514 | # ---------------------------------------------------------------------- |
---|
515 | # OPTION: -backdrop |
---|
516 | # ---------------------------------------------------------------------- |
---|
517 | itcl::configbody Rappture::MoleculeViewer::backdrop { |
---|
518 | eval $this-ren SetBackground [_color2rgb $itk_option(-backdrop)] |
---|
519 | $_dispatcher event -idle !render |
---|
520 | } |
---|
521 | |
---|
522 | # ---------------------------------------------------------------------- |
---|
523 | # OPTION: -device |
---|
524 | # ---------------------------------------------------------------------- |
---|
525 | itcl::configbody Rappture::MoleculeViewer::device { |
---|
526 | if {$itk_option(-device) != "" |
---|
527 | && ![Rappture::library isvalid $itk_option(-device)]} { |
---|
528 | error "bad value \"$itk_option(-device)\": should be Rappture::library object" |
---|
529 | } |
---|
530 | _clear |
---|
531 | |
---|
532 | if {$itk_option(-device) != ""} { |
---|
533 | set state [$itk_option(-device) get components.molecule.about.emblems] |
---|
534 | if {$state == "" || ![string is boolean $state] || !$state} { |
---|
535 | emblems off |
---|
536 | } else { |
---|
537 | emblems on |
---|
538 | } |
---|
539 | } |
---|
540 | $_dispatcher event -idle !redraw |
---|
541 | } |
---|