-
Notifications
You must be signed in to change notification settings - Fork 591
/
application.js
1443 lines (1327 loc) · 42.4 KB
/
application.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/** @namespace */
var dwv = dwv || {};
/**
* Main application class.
* @constructor
*/
dwv.App = function ()
{
// Local object
var self = this;
// Image
var image = null;
// Original image
var originalImage = null;
// Image data array
var imageData = null;
// Image data width
var dataWidth = 0;
// Image data height
var dataHeight = 0;
// Is the data mono-slice?
var isMonoSliceData = 0;
// Default character set
var defaultCharacterSet;
// Container div id
var containerDivId = null;
// Display window scale
var windowScale = 1;
// Fit display to window flag
var fitToWindow = false;
// main scale
var scale = 1;
// zoom center
var scaleCenter = {"x": 0, "y": 0};
// translation
var translation = {"x": 0, "y": 0};
// View
var view = null;
// View controller
var viewController = null;
// Info layer controller
var infoController = null;
// Dicom tags gui
var tagsGui = null;
// Drawing list gui
var drawListGui = null;
// Image layer
var imageLayer = null;
// Draw controller
var drawController = null;
// Generic style
var style = new dwv.html.Style();
// Toolbox controller
var toolboxController = null;
// Loadbox
var loadbox = null;
// Current loader
var currentLoader = null;
// UndoStack
var undoStack = null;
// listeners
var listeners = {};
// help resources path
var helpResourcesPath = "./";
/**
* Get the image.
* @return {Image} The associated image.
*/
this.getImage = function () { return image; };
/**
* Set the view.
* @param {Image} img The associated image.
*/
this.setImage = function (img)
{
image = img;
view.setImage(img);
};
/**
* Restore the original image.
*/
this.restoreOriginalImage = function ()
{
image = originalImage;
view.setImage(originalImage);
};
/**
* Get the image data array.
* @return {Array} The image data array.
*/
this.getImageData = function () { return imageData; };
/**
* Is the data mono-slice?
* @return {Boolean} True if the data is mono-slice.
*/
this.isMonoSliceData = function () { return isMonoSliceData; };
/**
* Get the main scale.
* @return {Number} The main scale.
*/
this.getScale = function () { return scale / windowScale; };
/**
* Get the window scale.
* @return {Number} The window scale.
*/
this.getWindowScale = function () { return windowScale; };
/**
* Get the scale center.
* @return {Object} The coordinates of the scale center.
*/
this.getScaleCenter = function () { return scaleCenter; };
/**
* Get the translation.
* @return {Object} The translation.
*/
this.getTranslation = function () { return translation; };
/**
* Get the view controller.
* @return {Object} The controller.
*/
this.getViewController = function () { return viewController; };
/**
* Get the draw controller.
* @return {Object} The controller.
*/
this.getDrawController = function () { return drawController; };
/**
* Get the image layer.
* @return {Object} The image layer.
*/
this.getImageLayer = function () { return imageLayer; };
/**
* Get the draw stage.
* @return {Object} The draw stage.
*/
this.getDrawStage = function () {
return drawController.getDrawStage();
};
/**
* Get the app style.
* @return {Object} The app style.
*/
this.getStyle = function () { return style; };
/**
* Get the help resources path.
* @return {String} The path.
*/
this.getHelpResourcesPath = function () {
return helpResourcesPath;
};
/**
* Add a command to the undo stack.
* @param {Object} The command to add.
*/
this.addToUndoStack = function (cmd) {
if ( undoStack !== null ) {
undoStack.add(cmd);
}
};
/**
* Initialise the HTML for the application.
*/
this.init = function ( config ) {
containerDivId = config.containerDivId;
// tools
if ( config.tools && config.tools.length !== 0 ) {
// setup the tool list
var toolList = {};
for ( var t = 0; t < config.tools.length; ++t ) {
var toolName = config.tools[t];
if ( toolName === "Draw" ) {
if ( config.shapes !== 0 ) {
// setup the shape list
var shapeList = {};
for ( var s = 0; s < config.shapes.length; ++s ) {
var shapeName = config.shapes[s];
var shapeFactoryClass = shapeName+"Factory";
if (typeof dwv.tool[shapeFactoryClass] !== "undefined") {
shapeList[shapeName] = dwv.tool[shapeFactoryClass];
}
else {
console.warn("Could not initialise unknown shape: "+shapeName);
}
}
toolList.Draw = new dwv.tool.Draw(this, shapeList);
toolList.Draw.addEventListener("draw-create", fireEvent);
toolList.Draw.addEventListener("draw-change", fireEvent);
toolList.Draw.addEventListener("draw-move", fireEvent);
toolList.Draw.addEventListener("draw-delete", fireEvent);
}
}
else if ( toolName === "Filter" ) {
if ( config.filters.length !== 0 ) {
// setup the filter list
var filterList = {};
for ( var f = 0; f < config.filters.length; ++f ) {
var filterName = config.filters[f];
if (typeof dwv.tool.filter[filterName] !== "undefined") {
filterList[filterName] = new dwv.tool.filter[filterName](this);
}
else {
console.warn("Could not initialise unknown filter: "+filterName);
}
}
toolList.Filter = new dwv.tool.Filter(filterList, this);
toolList.Filter.addEventListener("filter-run", fireEvent);
toolList.Filter.addEventListener("filter-undo", fireEvent);
}
}
else {
// default: find the tool in the dwv.tool namespace
var toolClass = toolName;
if (typeof dwv.tool[toolClass] !== "undefined") {
toolList[toolClass] = new dwv.tool[toolClass](this);
if (typeof toolList[toolClass].addEventListener !== "undefined") {
toolList[toolClass].addEventListener(fireEvent);
}
}
else {
console.warn("Could not initialise unknown tool: "+toolName);
}
}
}
toolboxController = new dwv.ToolboxController();
toolboxController.create(toolList, this);
}
// gui
if ( config.gui ) {
// tools
if ( config.gui.indexOf("tool") !== -1 && toolboxController) {
toolboxController.setup();
}
// load
if ( config.gui.indexOf("load") !== -1 ) {
var loaderList = {};
for ( var l = 0; l < config.loaders.length; ++l ) {
var loaderName = config.loaders[l];
var loaderClass = loaderName + "Load";
// default: find the loader in the dwv.gui namespace
if (typeof dwv.gui[loaderClass] !== "undefined") {
loaderList[loaderName] = new dwv.gui[loaderClass](this);
}
else {
console.warn("Could not initialise unknown loader: "+loaderName);
}
}
loadbox = new dwv.gui.Loadbox(this, loaderList);
loadbox.setup();
var loaderKeys = Object.keys(loaderList);
for ( var lk = 0; lk < loaderKeys.length; ++lk ) {
loaderList[loaderKeys[lk]].setup();
}
loadbox.displayLoader(loaderKeys[0]);
}
// undo
if ( config.gui.indexOf("undo") !== -1 ) {
undoStack = new dwv.tool.UndoStack(this);
undoStack.setup();
}
// DICOM Tags
if ( config.gui.indexOf("tags") !== -1 ) {
tagsGui = new dwv.gui.DicomTags(this);
}
// Draw list
if ( config.gui.indexOf("drawList") !== -1 ) {
drawListGui = new dwv.gui.DrawList(this);
// update list on draw events
this.addEventListener("draw-create", drawListGui.update);
this.addEventListener("draw-change", drawListGui.update);
this.addEventListener("draw-delete", drawListGui.update);
}
// version number
if ( config.gui.indexOf("version") !== -1 ) {
dwv.gui.appendVersionHtml(dwv.getVersion());
}
// help
if ( config.gui.indexOf("help") !== -1 ) {
var isMobile = true;
if ( config.isMobile !== "undefined" ) {
isMobile = config.isMobile;
}
// help resources path
if ( typeof config.helpResourcesPath !== "undefined" ) {
helpResourcesPath = config.helpResourcesPath;
}
dwv.gui.appendHelpHtml( toolboxController.getToolList(), isMobile, this );
}
}
// listen to drag&drop
var box = this.getElement("dropBox");
if ( box ) {
box.addEventListener("dragover", onDragOver);
box.addEventListener("dragleave", onDragLeave);
box.addEventListener("drop", onDrop);
// initial size
var size = dwv.gui.getWindowSize();
var dropBoxSize = 2 * size.height / 3;
box.setAttribute("style","width:"+dropBoxSize+"px;height:"+dropBoxSize+"px");
}
// possible load from URL
if ( typeof config.skipLoadUrl === "undefined" ) {
var query = dwv.utils.getUriQuery(window.location.href);
// check query
if ( query && typeof query.input !== "undefined" ) {
dwv.utils.decodeQuery(query, this.onInputURLs);
// optional display state
if ( typeof query.state !== "undefined" ) {
var onLoadEnd = function (/*event*/) {
loadStateUrl(query.state);
};
this.addEventListener( "load-end", onLoadEnd );
}
}
}
else{
console.log("Not loading url from address since skipLoadUrl is defined.");
}
// align layers when the window is resized
if ( config.fitToWindow ) {
fitToWindow = true;
window.onresize = this.onResize;
}
// default character set
if ( typeof config.defaultCharacterSet !== "undefined" ) {
defaultCharacterSet = config.defaultCharacterSet;
}
};
/**
* Get a HTML element associated to the application.
* @param name The name or id to find.
* @return The found element or null.
*/
this.getElement = function (name)
{
return dwv.gui.getElement(containerDivId, name);
};
/**
* Reset the application.
*/
this.reset = function ()
{
// clear tools
if ( toolboxController ) {
toolboxController.reset();
}
// clear draw
if ( drawController ) {
drawController.reset();
}
// clear objects
image = null;
view = null;
isMonoSliceData = false;
// reset undo/redo
if ( undoStack ) {
undoStack = new dwv.tool.UndoStack(this);
undoStack.initialise();
}
};
/**
* Reset the layout of the application.
*/
this.resetLayout = function () {
var previousScale = scale;
var previousSC = scaleCenter;
var previousTrans = translation;
// reset values
scale = windowScale;
scaleCenter = {"x": 0, "y": 0};
translation = {"x": 0, "y": 0};
// apply new values
if ( imageLayer ) {
imageLayer.resetLayout(windowScale);
imageLayer.draw();
}
if ( drawController ) {
drawController.resetStage(windowScale);
}
// fire events
if (previousScale != scale) {
fireEvent({"type": "zoom-change", "scale": scale, "cx": scaleCenter.x, "cy": scaleCenter.y });
}
if ( (previousSC.x !== scaleCenter.x || previousSC.y !== scaleCenter.y) ||
(previousTrans.x !== translation.x || previousTrans.y !== translation.y)) {
fireEvent({"type": "offset-change", "scale": scale, "cx": scaleCenter.x, "cy": scaleCenter.y });
}
};
/**
* Add an event listener on the app.
* @param {String} type The event type.
* @param {Object} listener The method associated with the provided event type.
*/
this.addEventListener = function (type, listener)
{
if ( typeof listeners[type] === "undefined" ) {
listeners[type] = [];
}
listeners[type].push(listener);
};
/**
* Remove an event listener from the app.
* @param {String} type The event type.
* @param {Object} listener The method associated with the provided event type.
*/
this.removeEventListener = function (type, listener)
{
if( typeof listeners[type] === "undefined" ) {
return;
}
for ( var i = 0; i < listeners[type].length; ++i )
{
if ( listeners[type][i] === listener ) {
listeners[type].splice(i,1);
}
}
};
/**
* Load a list of files. Can be image files or a state file.
* @param {Array} files The list of files to load.
*/
this.loadFiles = function (files)
{
// has been checked for emptiness.
var ext = files[0].name.split('.').pop().toLowerCase();
if ( ext === "json" ) {
loadStateFile(files[0]);
}
else {
loadImageFiles(files);
}
};
/**
* Load a list of image files.
* @private
* @param {Array} files The list of image files to load.
*/
function loadImageFiles(files)
{
// create IO
var fileIO = new dwv.io.FilesLoader();
// load data
loadImageData(files, fileIO);
}
/**
* Load a State file.
* @private
* @param {String} file The state file to load.
*/
function loadStateFile(file)
{
// create IO
var fileIO = new dwv.io.FilesLoader();
// load data
loadStateData([file], fileIO);
}
/**
* Load a list of URLs. Can be image files or a state file.
* @param {Array} urls The list of urls to load.
* @param {Array} requestHeaders An array of {name, value} to use as request headers.
*/
this.loadURLs = function (urls, requestHeaders)
{
// has been checked for emptiness.
var ext = urls[0].split('.').pop().toLowerCase();
if ( ext === "json" ) {
loadStateUrl(urls[0], requestHeaders);
}
else {
loadImageUrls(urls, requestHeaders);
}
};
/**
* Abort the current load.
*/
this.abortLoad = function ()
{
if ( currentLoader ) {
currentLoader.abort();
currentLoader = null;
}
};
/**
* Load a list of ArrayBuffers.
* @param {Array} data The list of ArrayBuffers to load
* in the form of [{name: "", filename: "", data: data}].
*/
this.loadImageObject = function (data)
{
// create IO
var memoryIO = new dwv.io.MemoryLoader();
// create options
var options = {};
// load data
loadImageData(data, memoryIO, options);
};
/**
* Load a list of image URLs.
* @private
* @param {Array} urls The list of urls to load.
* @param {Array} requestHeaders An array of {name, value} to use as request headers.
*/
function loadImageUrls(urls, requestHeaders)
{
// create IO
var urlIO = new dwv.io.UrlsLoader();
// create options
var options = {'requestHeaders': requestHeaders};
// load data
loadImageData(urls, urlIO, options);
}
/**
* Load a State url.
* @private
* @param {String} url The state url to load.
* @param {Array} requestHeaders An array of {name, value} to use as request headers.
*/
function loadStateUrl(url, requestHeaders)
{
// create IO
var urlIO = new dwv.io.UrlsLoader();
// create options
var options = {'requestHeaders': requestHeaders};
// load data
loadStateData([url], urlIO, options);
}
/**
* Load a list of image data.
* @private
* @param {Array} data Array of data to load.
* @param {Object} loader The data loader.
* @param {Object} options Options passed to the final loader.
*/
function loadImageData(data, loader, options)
{
// store loader
currentLoader = loader;
// allow to cancel
var previousOnKeyDown = window.onkeydown;
window.onkeydown = function (event) {
if (event.ctrlKey && event.keyCode === 88 ) // crtl-x
{
console.log("crtl-x pressed!");
self.abortLoad();
}
};
// clear variables
self.reset();
// first data name
var firstName = "";
if (typeof data[0].name !== "undefined") {
firstName = data[0].name;
} else {
firstName = data[0];
}
// flag used by scroll to decide wether to activate or not
// TODO: supposing multi-slice for zip files, could not be...
isMonoSliceData = (data.length === 1 &&
firstName.split('.').pop().toLowerCase() !== "zip");
// set IO
loader.setDefaultCharacterSet(defaultCharacterSet);
loader.onload = function (data) {
if ( image ) {
view.append( data.view );
if ( drawController ) {
//drawController.appendDrawLayer(image.getNumberOfFrames());
}
}
postLoadInit(data);
};
loader.onerror = function (error) { handleError(error); };
loader.onabort = function (error) { handleAbort(error); };
loader.onloadend = function (/*event*/) {
window.onkeydown = previousOnKeyDown;
if ( drawController ) {
drawController.activateDrawLayer(viewController);
}
fireEvent({type: "load-progress", lengthComputable: true,
loaded: 100, total: 100});
fireEvent({ 'type': 'load-end' });
// reset member
currentLoader = null;
};
loader.onprogress = onLoadProgress;
// main load (asynchronous)
fireEvent({ 'type': 'load-start' });
loader.load(data, options);
}
/**
* Load a State data.
* @private
* @param {Array} data Array of data to load.
* @param {Object} loader The data loader.
* @param {Object} options Options passed to the final loader.
*/
function loadStateData(data, loader, options)
{
// set IO
loader.onload = function (data) {
// load state
var state = new dwv.State();
state.apply( self, state.fromJSON(data) );
};
loader.onerror = function (error) { handleError(error); };
// main load (asynchronous)
loader.load(data, options);
}
/**
* Fit the display to the given size. To be called once the image is loaded.
*/
this.fitToSize = function (size)
{
// previous width
var oldWidth = parseInt(windowScale*dataWidth, 10);
// find new best fit
windowScale = Math.min( (size.width / dataWidth), (size.height / dataHeight) );
// new sizes
var newWidth = parseInt(windowScale*dataWidth, 10);
var newHeight = parseInt(windowScale*dataHeight, 10);
// ratio previous/new to add to zoom
var mul = newWidth / oldWidth;
scale *= mul;
// update style
style.setScale(windowScale);
// resize container
var container = this.getElement("layerContainer");
container.setAttribute("style","width:"+newWidth+"px;height:"+newHeight+"px");
// resize image layer
if ( imageLayer ) {
imageLayer.setWidth(newWidth);
imageLayer.setHeight(newHeight);
imageLayer.zoom(scale, scale, 0, 0);
imageLayer.draw();
}
// resize draw stage
if ( drawController ) {
drawController.resizeStage(newWidth, newHeight, scale);
}
};
/**
* Toggle the display of the information layer.
*/
this.toggleInfoLayerDisplay = function ()
{
// toggle html
var infoLayer = self.getElement("infoLayer");
dwv.html.toggleDisplay(infoLayer);
// toggle listeners
infoController.toggleListeners(self, view);
};
/**
* Init the Window/Level display
*/
this.initWLDisplay = function ()
{
// set window/level to first preset
viewController.setWindowLevelPresetById(0);
// default position
viewController.setCurrentPosition2D(0,0);
// default frame
viewController.setCurrentFrame(0);
};
/**
* Add canvas mouse and touch listeners.
* @param {Object} canvas The canvas to listen to.
*/
this.addToolCanvasListeners = function (layer)
{
toolboxController.addCanvasListeners(layer);
};
/**
* Remove layer mouse and touch listeners.
* @param {Object} canvas The canvas to stop listening to.
*/
this.removeToolCanvasListeners = function (layer)
{
toolboxController.removeCanvasListeners(layer);
};
/**
* Render the current image.
*/
this.render = function ()
{
generateAndDrawImage();
};
/**
* Zoom to the layers.
* @param {Number} zoom The zoom to apply.
* @param {Number} cx The zoom center X coordinate.
* @param {Number} cy The zoom center Y coordinate.
*/
this.zoom = function (zoom, cx, cy) {
scale = zoom * windowScale;
if ( scale <= 0.1 ) {
scale = 0.1;
}
scaleCenter = {"x": cx, "y": cy};
zoomLayers();
};
/**
* Add a step to the layers zoom.
* @param {Number} step The zoom step increment. A good step is of 0.1.
* @param {Number} cx The zoom center X coordinate.
* @param {Number} cy The zoom center Y coordinate.
*/
this.stepZoom = function (step, cx, cy) {
scale += step;
if ( scale <= 0.1 ) {
scale = 0.1;
}
scaleCenter = {"x": cx, "y": cy};
zoomLayers();
};
/**
* Apply a translation to the layers.
* @param {Number} tx The translation along X.
* @param {Number} ty The translation along Y.
*/
this.translate = function (tx, ty)
{
translation = {"x": tx, "y": ty};
translateLayers();
};
/**
* Add a translation to the layers.
* @param {Number} tx The step translation along X.
* @param {Number} ty The step translation along Y.
*/
this.stepTranslate = function (tx, ty)
{
var txx = translation.x + tx / scale;
var tyy = translation.y + ty / scale;
translation = {"x": txx, "y": tyy};
translateLayers();
};
/**
* Get the list of drawing display details.
* @return {Object} The list of draw details including id, slice, frame...
*/
this.getDrawDisplayDetails = function ()
{
return drawController.getDrawDisplayDetails();
};
/**
* Get a list of drawing store details.
* @return {Object} A list of draw details including id, text, quant...
*/
this.getDrawStoreDetails = function ()
{
return drawController.getDrawStoreDetails();
};
/**
* Set the drawings on the current stage.
* @param {Array} drawings An array of drawings.
* @param {Array} drawingsDetails An array of drawings details.
*/
this.setDrawings = function (drawings, drawingsDetails)
{
drawController.setDrawings(drawings, drawingsDetails, fireEvent, this.addToUndoStack);
drawController.activateDrawLayer(viewController);
};
/**
* Update a drawing from its details.
* @param {Object} drawDetails Details of the drawing to update.
*/
this.updateDraw = function (drawDetails)
{
drawController.updateDraw(drawDetails);
};
/**
* Delete all Draws from all layers.
*/
this.deleteDraws = function () {
drawController.deleteDraws(fireEvent, this.addToUndoStack);
};
/**
* Check the visibility of a given group.
* @param {Object} drawDetails Details of the drawing to check.
*/
this.isGroupVisible = function (drawDetails)
{
return drawController.isGroupVisible(drawDetails);
};
/**
* Toggle group visibility.
* @param {Object} drawDetails Details of the drawing to update.
*/
this.toogleGroupVisibility = function (drawDetails)
{
drawController.toogleGroupVisibility(drawDetails);
};
// Handler Methods -----------------------------------------------------------
/**
* Handle window/level change.
* @param {Object} event The event fired when changing the window/level.
*/
this.onWLChange = function (event)
{
// generate and draw if no skip flag
if (typeof event.skipGenerate === "undefined" ||
event.skipGenerate === false) {
generateAndDrawImage();
}
};
/**
* Handle colour map change.
* @param {Object} event The event fired when changing the colour map.
*/
this.onColourChange = function (/*event*/)
{
generateAndDrawImage();
};
/**
* Handle frame change.
* @param {Object} event The event fired when changing the frame.
*/
this.onFrameChange = function (/*event*/)
{
generateAndDrawImage();
if ( drawController ) {
drawController.activateDrawLayer(viewController);
}
};
/**
* Handle slice change.
* @param {Object} event The event fired when changing the slice.
*/
this.onSliceChange = function (/*event*/)
{
generateAndDrawImage();
if ( drawController ) {
drawController.activateDrawLayer(viewController);
}
};
/**
* Handle key down event.
* - CRTL-Z: undo
* - CRTL-Y: redo
* - CRTL-ARROW_LEFT: next frame
* - CRTL-ARROW_UP: next slice
* - CRTL-ARROW_RIGHT: previous frame
* - CRTL-ARROW_DOWN: previous slice
* Default behavior. Usually used in tools.
* @param {Object} event The key down event.
*/
this.onKeydown = function (event)
{
if (event.ctrlKey) {
if ( event.keyCode === 37 ) // crtl-arrow-left
{
event.preventDefault();
self.getViewController().decrementFrameNb();
}
else if ( event.keyCode === 38 ) // crtl-arrow-up
{
event.preventDefault();
self.getViewController().incrementSliceNb();
}
else if ( event.keyCode === 39 ) // crtl-arrow-right
{
event.preventDefault();
self.getViewController().incrementFrameNb();
}
else if ( event.keyCode === 40 ) // crtl-arrow-down
{
event.preventDefault();
self.getViewController().decrementSliceNb();
}
else if ( event.keyCode === 89 ) // crtl-y
{
undoStack.redo();
}
else if ( event.keyCode === 90 ) // crtl-z
{
undoStack.undo();
}
}
};
/**
* Handle resize.
* Fit the display to the window. To be called once the image is loaded.
* @param {Object} event The change event.
*/
this.onResize = function (/*event*/)
{
self.fitToSize(dwv.gui.getWindowSize());
};
/**
* Handle zoom reset.
* @param {Object} event The change event.
*/
this.onZoomReset = function (/*event*/)
{
self.resetLayout();
};
/**
* Handle loader change. Will activate the loader using
* the value property of the 'event.currentTarget'.
* @param {Object} event The change event.
*/
this.onChangeLoader = function (event)
{
loadbox.displayLoader( event.currentTarget.value );
};
/**
* Reset the load box to its original state.
*/
this.resetLoadbox = function ()
{
loadbox.reset();
};
/**
* Handle change url event.
* @param {Object} event The event fired when changing the url field.
*/
this.onChangeURL = function (event)
{
self.loadURLs([event.target.value]);
};
/**
* Handle input urls.
* @param {Array} urls The list of input urls.
* @param {Array} requestHeaders An array of {name, value} to use as request headers.
*/
this.onInputURLs = function (urls, requestHeaders)