Mercurial > hg > orthanc-webviewer
annotate WebApplication/viewer.js @ 226:aee499712ac4
upgrade to year 2020
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 31 Jan 2020 17:41:38 +0100 |
parents | 0f042939410d |
children | 083d0cbcbac4 |
rev | line source |
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0 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
122 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
0 | 4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
0 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU Affero General Public License | |
9 * as published by the Free Software Foundation, either version 3 of | |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 * Affero General Public License for more details. | |
16 * | |
17 * You should have received a copy of the GNU Affero General Public License | |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 | |
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22 // Set the default compression |
0 | 23 var compression = 'jpeg95'; |
160 | 24 var isFirst = true; |
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25 //var compression = 'deflate'; |
0 | 26 |
27 | |
28 // Prevent the access to IE | |
29 if(navigator.appVersion.indexOf("MSIE ") != -1) | |
30 { | |
31 alert("Please use Mozilla Firefox or Google Chrome. Microsoft Internet Explorer is not supported."); | |
32 } | |
33 | |
34 | |
219 | 35 function GetAuthorizationTokensFromUrl() { |
36 var urlVariables = window.location.search.substring(1).split('&'); | |
37 var dict = {}; | |
38 | |
39 for (var i = 0; i < urlVariables.length; i++) { | |
40 var split = urlVariables[i].split('='); | |
41 | |
42 if (split.length == 2 && (split[0] == "token" || split[0] == "auth-token" || split[0] == "authorization")) { | |
43 dict[split[0]] = split[1]; | |
44 } | |
45 } | |
46 return dict; | |
47 }; | |
48 | |
49 var authorizationTokens = GetAuthorizationTokensFromUrl(); | |
50 | |
51 /* Copy the authoziation toekn from the url search parameters into HTTP headers in every request to the Rest API. | |
52 Thanks to this behaviour, you may specify a ?token=xxx in your url and this will be passed | |
53 as the "token" header in every request to the API allowing you to use the authorization plugin */ | |
54 $.ajaxSetup( | |
55 { | |
56 headers : authorizationTokens | |
57 } | |
58 ); | |
59 | |
0 | 60 function ResizeCornerstone() |
61 { | |
62 $('#dicomImage').height($(window).height() - $('#slider').parent().height()); | |
63 var element = $('#dicomImage').get(0); | |
64 cornerstone.resize(element, true); | |
65 } | |
66 | |
67 | |
68 function SetWindowing(center, width) | |
69 { | |
70 var element = $('#dicomImage').get(0); | |
71 var viewport = cornerstone.getViewport(element); | |
72 viewport.voi.windowCenter = center; | |
73 viewport.voi.windowWidth = width; | |
74 cornerstone.setViewport(element, viewport); | |
75 UpdateViewportInformation(); | |
76 } | |
77 | |
78 | |
79 function SetFullWindowing() | |
80 { | |
81 var element = $('#dicomImage').get(0); | |
82 var viewport = cornerstone.getViewport(element); | |
83 var image = cornerstone.getEnabledElement(element).image; | |
84 | |
85 if (image.color) { | |
86 // Ignore color images | |
87 return; | |
88 } | |
89 | |
90 var minValue = image.minPixelValue; | |
91 var maxValue = image.maxPixelValue; | |
92 if (minValue == undefined || | |
93 maxValue == undefined || | |
94 minValue == maxValue) { | |
95 return; | |
96 } | |
97 | |
98 if (image.slope != undefined && | |
99 image.intercept != undefined) { | |
100 minValue = minValue * image.slope + image.intercept; | |
101 maxValue = maxValue * image.slope + image.intercept; | |
102 } | |
103 | |
104 viewport.voi.windowCenter = (minValue + maxValue) / 2.0; | |
105 viewport.voi.windowWidth = (maxValue - minValue) / 2.0; | |
106 cornerstone.setViewport(element, viewport); | |
107 UpdateViewportInformation(); | |
108 } | |
109 | |
110 | |
111 function SetDefaultWindowing() | |
112 { | |
113 var element = $('#dicomImage').get(0); | |
114 var viewport = cornerstone.getViewport(element); | |
115 var image = cornerstone.getEnabledElement(element).image; | |
116 | |
117 viewport.voi.windowCenter = image.windowCenter; | |
118 viewport.voi.windowWidth = image.windowWidth; | |
119 cornerstone.setViewport(element, viewport); | |
120 UpdateViewportInformation(); | |
121 } | |
122 | |
123 | |
124 function SetBoneWindowing() | |
125 { | |
126 SetWindowing(300, 2000); | |
127 } | |
128 | |
129 | |
130 function SetLungWindowing() | |
131 { | |
132 SetWindowing(-600, 1600); | |
133 } | |
134 | |
135 | |
136 function UpdateViewportInformation() | |
137 { | |
138 var element = $('#dicomImage').get(0); | |
139 var viewport = cornerstone.getViewport(element); | |
140 | |
141 $('#bottomleft').text('WW/WL:' + Math.round(viewport.voi.windowWidth) + '/' + Math.round(viewport.voi.windowCenter)); | |
142 $('#bottomright').text('Zoom: ' + viewport.scale.toFixed(2) + 'x'); | |
143 } | |
144 | |
145 | |
146 function ToggleSeriesInformation() | |
147 { | |
148 $('#topright').toggle(); | |
149 } | |
150 | |
151 | |
152 function ToggleInterpolation() | |
153 { | |
154 var element = $('#dicomImage').get(0); | |
155 var viewport = cornerstone.getViewport(element); | |
156 if (viewport.pixelReplication === true) { | |
157 viewport.pixelReplication = false; | |
158 } else { | |
159 viewport.pixelReplication = true; | |
160 } | |
161 cornerstone.setViewport(element, viewport); | |
162 } | |
163 | |
164 | |
165 function ToggleInversion() | |
166 { | |
167 var element = $('#dicomImage').get(0); | |
168 var viewport = cornerstone.getViewport(element); | |
169 if (viewport.invert === true) { | |
170 viewport.invert = false; | |
171 } else { | |
172 viewport.invert = true; | |
173 } | |
174 cornerstone.setViewport(element, viewport); | |
175 } | |
176 | |
177 | |
178 function DownloadInstance(instance) | |
179 { | |
180 // http://stackoverflow.com/a/3749395/881731 | |
181 var hiddenIFrameID = 'hiddenDownloader', | |
182 iframe = document.getElementById(hiddenIFrameID); | |
183 if (iframe === null) { | |
184 iframe = document.createElement('iframe'); | |
185 iframe.id = hiddenIFrameID; | |
186 iframe.style.display = 'none'; | |
187 document.body.appendChild(iframe); | |
188 } | |
185
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189 |
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190 var id = instance; |
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191 var pos = instance.indexOf('_'); |
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192 if (pos != -1) { |
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193 // Remove the frame index (after the underscore) |
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194 id = id.substring(0, pos); |
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195 } |
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196 |
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197 iframe.src = '../../instances/' + id + '/file'; |
0 | 198 } |
199 | |
200 | |
201 function AdjustZoom() | |
202 { | |
203 var element = $('#dicomImage').get(0); | |
204 cornerstone.fitToWindow(element); | |
205 } | |
206 | |
207 | |
208 function ZoomIn() | |
209 { | |
210 var element = $('#dicomImage').get(0); | |
211 var viewport = cornerstone.getViewport(element); | |
212 viewport.scale /= 0.5; | |
213 cornerstone.setViewport(element, viewport); | |
214 UpdateViewportInformation(); | |
215 } | |
216 | |
217 | |
218 function ZoomOut() | |
219 { | |
220 var element = $('#dicomImage').get(0); | |
221 var viewport = cornerstone.getViewport(element); | |
222 viewport.scale *= 0.5; | |
223 cornerstone.setViewport(element, viewport); | |
224 UpdateViewportInformation(); | |
225 } | |
226 | |
227 | |
228 | |
229 (function (cornerstone) { | |
230 'use strict'; | |
231 | |
232 function PrintRange(pixels) | |
233 { | |
234 var a = Infinity; | |
235 var b = -Infinity; | |
236 | |
237 for (var i = 0, length = pixels.length; i < length; i++) { | |
238 if (pixels[i] < a) | |
239 a = pixels[i]; | |
240 if (pixels[i] > b) | |
241 b = pixels[i]; | |
242 } | |
243 | |
244 console.log(a + ' ' + b); | |
245 } | |
246 | |
247 function ChangeDynamics(pixels, source1, target1, source2, target2) | |
248 { | |
249 var scale = (target2 - target1) / (source2 - source1); | |
250 var offset = (target1) - scale * source1; | |
251 | |
252 for (var i = 0, length = pixels.length; i < length; i++) { | |
253 pixels[i] = scale * pixels[i] + offset; | |
254 } | |
255 } | |
256 | |
257 | |
258 function getPixelDataDeflate(image) { | |
259 // Decompresses the base64 buffer that was compressed with Deflate | |
260 var s = pako.inflate(window.atob(image.Orthanc.PixelData)); | |
261 var pixels = null; | |
262 | |
263 if (image.color) { | |
264 var buf = new ArrayBuffer(s.length / 3 * 4); // RGB32 | |
265 pixels = new Uint8Array(buf); | |
266 var index = 0; | |
267 for (var i = 0, length = s.length; i < length; i += 3) { | |
268 pixels[index++] = s[i]; | |
269 pixels[index++] = s[i + 1]; | |
270 pixels[index++] = s[i + 2]; | |
271 pixels[index++] = 255; // Alpha channel | |
272 } | |
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273 } else{ |
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274 var buf = new ArrayBuffer(s.length * 2); // uint16_t or int16_t |
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275 |
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276 if (image.Orthanc.IsSigned) { |
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277 pixels = new Int16Array(buf); |
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278 } else { |
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279 pixels = new Uint16Array(buf); |
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280 } |
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281 |
0 | 282 var index = 0; |
283 for (var i = 0, length = s.length; i < length; i += 2) { | |
284 var lower = s[i]; | |
285 var upper = s[i + 1]; | |
286 pixels[index] = lower + upper * 256; | |
287 index++; | |
288 } | |
289 } | |
290 | |
291 return pixels; | |
292 } | |
293 | |
294 | |
295 // http://stackoverflow.com/a/11058858/881731 | |
296 function str2ab(str) { | |
297 var buf = new ArrayBuffer(str.length); | |
298 var pixels = new Uint8Array(buf); | |
299 for (var i = 0, strLen=str.length; i<strLen; i++) { | |
300 pixels[i] = str.charCodeAt(i); | |
301 } | |
302 return pixels; | |
303 } | |
304 | |
305 function getPixelDataJpeg(image) { | |
306 var jpegReader = new JpegImage(); | |
307 var jpeg = str2ab(window.atob(image.Orthanc.PixelData)); | |
308 jpegReader.parse(jpeg); | |
309 var s = jpegReader.getData(image.width, image.height); | |
310 var pixels = null; | |
311 | |
312 if (image.color) { | |
313 var buf = new ArrayBuffer(s.length / 3 * 4); // RGB32 | |
314 pixels = new Uint8Array(buf); | |
315 var index = 0; | |
316 for (var i = 0, length = s.length; i < length; i += 3) { | |
317 pixels[index++] = s[i]; | |
318 pixels[index++] = s[i + 1]; | |
319 pixels[index++] = s[i + 2]; | |
320 pixels[index++] = 255; // Alpha channel | |
321 } | |
322 } else { | |
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323 var buf = new ArrayBuffer(s.length * 2); // uint16_t or int16_t |
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324 |
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325 if (image.Orthanc.IsSigned) { |
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326 pixels = new Int16Array(buf); |
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327 } else { |
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328 pixels = new Uint16Array(buf); |
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329 } |
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330 |
0 | 331 var index = 0; |
332 for (var i = 0, length = s.length; i < length; i++) { | |
333 pixels[index] = s[i]; | |
334 index++; | |
335 } | |
336 | |
337 if (image.Orthanc.Stretched) { | |
338 ChangeDynamics(pixels, 0, image.Orthanc.StretchLow, 255, image.Orthanc.StretchHigh); | |
339 } | |
340 } | |
341 | |
342 return pixels; | |
343 } | |
344 | |
345 | |
346 function getOrthancImage(imageId) { | |
347 var result = null; | |
348 | |
349 $.ajax({ | |
350 type: 'GET', | |
351 url: '../instances/' + compression + '-' + imageId, | |
352 dataType: 'json', | |
353 cache: true, | |
354 async: false, | |
355 success: function(image) { | |
356 image.imageId = imageId; | |
357 if (image.color) | |
358 image.render = cornerstone.renderColorImage; | |
359 else | |
360 image.render = cornerstone.renderGrayscaleImage; | |
361 | |
160 | 362 if (isFirst) { |
363 if (image.Orthanc.PhotometricInterpretation == "MONOCHROME1") { | |
364 image.invert = true; | |
365 } else { | |
366 image.invert = false; | |
367 } | |
368 | |
369 isFirst = false; | |
370 } | |
371 | |
0 | 372 image.getPixelData = function() { |
373 if (image.Orthanc.Compression == 'Deflate') | |
374 return getPixelDataDeflate(this); | |
375 | |
376 if (image.Orthanc.Compression == 'Jpeg') | |
377 return getPixelDataJpeg(this); | |
378 | |
379 // Unknown compression | |
380 return null; | |
381 } | |
382 | |
383 result = image; | |
384 }, | |
385 error: function() { | |
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386 alert('Error: This image is not supported by the Web viewer.'); |
0 | 387 return null; |
388 } | |
389 }); | |
390 | |
391 var deferred = $.Deferred(); | |
392 deferred.resolve(result); | |
393 return deferred; | |
394 } | |
395 | |
396 // register our imageLoader plugin with cornerstone | |
397 cornerstone.registerImageLoader('', getOrthancImage); | |
398 | |
399 }(cornerstone)); | |
400 | |
401 | |
402 $(document).ready(function() { | |
403 $('#open-toolbar').button({ | |
404 icons: { primary: 'ui-icon-custom-orthanc' }, | |
405 text: false | |
406 }); | |
407 | |
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408 $('#unstable').tooltip(); |
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409 |
0 | 410 var series = window.url('?series', window.location.search); |
411 if (series == null) | |
412 return; | |
413 | |
414 console.log('Displaying series: ' + series); | |
415 var instances = [ ]; | |
416 | |
417 $.ajax({ | |
418 type: 'GET', | |
419 url: '../series/' + series, | |
420 dataType: 'json', | |
421 cache: false, | |
422 async: false, | |
423 success: function(volume) { | |
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424 if (volume.Slices.length != 0) { |
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425 instances = volume.Slices; |
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426 $('#topright').html(volume.PatientID + '<br/>' + |
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427 volume.PatientName + '<br/>' + |
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428 volume.StudyDescription + '<br/>' + |
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429 volume.SeriesDescription + '<br/>'); |
0 | 430 } |
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431 }, |
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432 failure: function() { |
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433 alert('Error: This image is not supported by the Web viewer.'); |
0 | 434 } |
435 }); | |
436 | |
437 if (instances.length == 0) | |
438 { | |
439 console.log('No image in this series'); | |
440 return; | |
441 } | |
442 | |
443 | |
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444 $.ajax({ |
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445 type: 'GET', |
19 | 446 url: '../is-stable-series/' + series, |
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447 dataType: 'json', |
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448 cache: false, |
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449 async: true, |
19 | 450 success: function(stable) { |
451 if (!stable) { | |
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452 $('#unstable').show(); |
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Sebastien Jodogne <s.jodogne@gmail.com>
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453 } |
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Sebastien Jodogne <s.jodogne@gmail.com>
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454 } |
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Sebastien Jodogne <s.jodogne@gmail.com>
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455 }); |
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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456 |
c919d488471f
throbber to reflect the receiving of instances
Sebastien Jodogne <s.jodogne@gmail.com>
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457 |
0 | 458 var currentImageIndex = 0; |
459 | |
460 // updates the image display | |
461 function updateTheImage(imageIndex) { | |
462 return cornerstone.loadAndCacheImage(instances[imageIndex]).then(function(image) { | |
463 currentImageIndex = imageIndex; | |
464 var viewport = cornerstone.getViewport(element); | |
465 cornerstone.displayImage(element, image, viewport); | |
466 }); | |
467 } | |
468 | |
469 // image enable the element | |
470 var element = $('#dicomImage').get(0); | |
471 cornerstone.enable(element); | |
472 | |
473 // set event handlers | |
474 /*function onImageRendered(e, eventData) { | |
475 $('#topright').text('Render Time:' + eventData.renderTimeInMs + ' ms'); | |
476 } | |
477 $(element).on('CornerstoneImageRendered', onImageRendered);*/ | |
478 | |
479 // load and display the image | |
480 var imagePromise = updateTheImage(0); | |
481 | |
482 // add handlers for mouse events once the image is loaded. | |
483 imagePromise.then(function() { | |
484 viewport = cornerstone.getViewport(element); | |
485 UpdateViewportInformation(); | |
486 | |
487 // add event handlers to pan image on mouse move | |
488 $('#dicomImage').mousedown(function (e) { | |
489 var lastX = e.pageX; | |
490 var lastY = e.pageY; | |
491 var mouseButton = e.which; | |
492 | |
493 $(toolbar).hide(); | |
494 | |
495 $(document).mousemove(function (e) { | |
496 var deltaX = e.pageX - lastX, | |
497 deltaY = e.pageY - lastY; | |
498 lastX = e.pageX; | |
499 lastY = e.pageY; | |
500 | |
501 if (mouseButton == 1) { | |
502 var viewport = cornerstone.getViewport(element); | |
503 viewport.voi.windowWidth += (deltaX / viewport.scale); | |
504 viewport.voi.windowCenter += (deltaY / viewport.scale); | |
505 cornerstone.setViewport(element, viewport); | |
506 UpdateViewportInformation(); | |
507 } | |
508 else if (mouseButton == 2) { | |
509 var viewport = cornerstone.getViewport(element); | |
510 viewport.translation.x += (deltaX / viewport.scale); | |
511 viewport.translation.y += (deltaY / viewport.scale); | |
512 cornerstone.setViewport(element, viewport); | |
513 } | |
514 else if (mouseButton == 3) { | |
515 var viewport = cornerstone.getViewport(element); | |
516 viewport.scale += (deltaY / 100); | |
517 cornerstone.setViewport(element, viewport); | |
518 UpdateViewportInformation(); | |
519 } | |
520 }); | |
521 | |
522 $(document).mouseup(function (e) { | |
523 $(document).unbind('mousemove'); | |
524 $(document).unbind('mouseup'); | |
525 }); | |
526 }); | |
527 | |
528 $('#dicomImage').on('mousewheel DOMMouseScroll', function (e) { | |
529 // Firefox e.originalEvent.detail > 0 scroll back, < 0 scroll forward | |
530 // chrome/safari e.originalEvent.wheelDelta < 0 scroll back, > 0 scroll forward | |
531 if (e.originalEvent.wheelDelta < 0 || e.originalEvent.detail > 0) { | |
532 currentImageIndex ++; | |
533 if (currentImageIndex >= instances.length) { | |
534 currentImageIndex = instances.length - 1; | |
535 } | |
536 } else { | |
537 currentImageIndex --; | |
538 if (currentImageIndex < 0) { | |
539 currentImageIndex = 0; | |
540 } | |
541 } | |
542 | |
543 updateTheImage(currentImageIndex); | |
544 $('#slider').slider("option", "value", currentImageIndex); | |
545 | |
546 //prevent page fom scrolling | |
547 return false; | |
548 }); | |
549 }); | |
550 | |
551 | |
552 $('#slider').slider({ | |
553 min: 0, | |
554 max: instances.length - 1, | |
555 slide: function(event, ui) { | |
556 updateTheImage(ui.value); | |
557 } | |
558 }); | |
559 | |
560 var toolbar = $.jsPanel({ | |
561 position: { top: 50, left: 10 }, | |
562 size: { width: 155, height: 200 }, | |
563 content: $('#toolbar-content').clone().show(), | |
564 controls: { buttons: 'none' }, | |
565 title: '<a target="_blank" href="http://www.orthanc-server.com/"><img src="images/orthanc-logo.png" /></a>' | |
566 }); | |
567 | |
568 $('#open-toolbar').click(function() { | |
569 toolbar.toggle(); | |
570 }); | |
571 | |
572 $(toolbar).hide(); | |
573 | |
574 $('.toolbar-view', toolbar).buttonset() | |
575 .children().first().button({ | |
576 icons: { primary: 'ui-icon-info' }, | |
577 text: false | |
578 }).click(ToggleSeriesInformation).next().button({ | |
579 icons: { primary: 'ui-icon-custom-inversion' }, | |
580 text: false | |
581 }).click(ToggleInversion).next().button({ | |
582 icons: { primary: 'ui-icon-custom-interpolation' }, | |
583 text: false | |
584 }).click(ToggleInterpolation).next().button({ | |
585 icons: { primary: 'ui-icon-circle-triangle-s' }, | |
586 text: false | |
587 }).click(function() { | |
588 DownloadInstance(instances[currentImageIndex]); | |
589 }); | |
590 | |
591 $('.toolbar-zoom', toolbar).buttonset() | |
592 .children().first().button({ | |
593 icons: { primary: 'ui-icon-image' }, | |
594 text: false | |
595 }).click(AdjustZoom).next().button({ | |
596 icons: { primary: 'ui-icon-zoomin' }, | |
597 text: false | |
598 }).click(ZoomIn).next().button({ | |
599 icons: { primary: 'ui-icon-zoomout' }, | |
600 text: false | |
601 }).click(ZoomOut); | |
602 | |
603 $('.toolbar-windowing', toolbar).buttonset() | |
604 .children().first().button({ | |
605 icons: { primary: 'ui-icon-custom-default' }, | |
606 text: false | |
607 }).click(SetDefaultWindowing).next().button({ | |
608 icons: { primary: 'ui-icon-custom-stretch' }, | |
609 text: false | |
610 }).click(SetFullWindowing).next().button({ | |
611 icons: { primary: 'ui-icon-custom-lung' }, | |
612 text: false | |
613 }).click(SetLungWindowing).next().button({ | |
614 icons: { primary: 'ui-icon-custom-bone' }, | |
615 text: false | |
616 }).click(SetBoneWindowing); | |
617 | |
618 | |
619 function SetCompression(c) | |
620 { | |
621 compression = c; | |
622 cornerstone.imageCache.purgeCache(); | |
623 updateTheImage(currentImageIndex); | |
624 cornerstone.invalidateImageId(instances[currentImageIndex]); | |
625 } | |
626 | |
627 $('.toolbar-quality', toolbar).buttonset() | |
628 .children().first().button({ | |
629 label: 'L' | |
630 }).click(function() { | |
631 SetCompression('jpeg80'); | |
632 }).next().button({ | |
633 label: 'M' | |
634 }).click(function() { | |
635 SetCompression('jpeg95'); | |
636 }).next().button({ | |
637 label: 'H' | |
638 }).click(function() { | |
639 SetCompression('deflate'); | |
640 }); | |
641 | |
642 | |
643 ResizeCornerstone(); | |
644 $(window).resize(function(e) { | |
645 if (!$(e.target).hasClass('jsPanel')) // Ignore toolbar resizing | |
646 { | |
647 ResizeCornerstone(); | |
648 } | |
649 }); | |
650 | |
651 }); |