Mercurial > hg > orthanc-webviewer
annotate WebApplication/viewer.js @ 71:9bb7caee0509
Fix for old versions of jQuery
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Sat, 08 Aug 2015 11:23:39 +0200 |
| parents | 20af33af313a |
| children | 46ec13a1177c |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
| 5 * | |
| 6 * This program is free software: you can redistribute it and/or | |
| 7 * modify it under the terms of the GNU Affero General Public License | |
| 8 * as published by the Free Software Foundation, either version 3 of | |
| 9 * the License, or (at your option) any later version. | |
| 10 * | |
| 11 * This program is distributed in the hope that it will be useful, but | |
| 12 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 * Affero General Public License for more details. | |
| 15 * | |
| 16 * You should have received a copy of the GNU Affero General Public License | |
| 17 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 18 **/ | |
| 19 | |
| 20 | |
| 21 var compression = 'jpeg95'; | |
| 22 | |
| 23 | |
| 24 // Prevent the access to IE | |
| 25 if(navigator.appVersion.indexOf("MSIE ") != -1) | |
| 26 { | |
| 27 alert("Please use Mozilla Firefox or Google Chrome. Microsoft Internet Explorer is not supported."); | |
| 28 } | |
| 29 | |
| 30 | |
| 31 function ResizeCornerstone() | |
| 32 { | |
| 33 $('#dicomImage').height($(window).height() - $('#slider').parent().height()); | |
| 34 var element = $('#dicomImage').get(0); | |
| 35 cornerstone.resize(element, true); | |
| 36 } | |
| 37 | |
| 38 | |
| 39 function SetWindowing(center, width) | |
| 40 { | |
| 41 var element = $('#dicomImage').get(0); | |
| 42 var viewport = cornerstone.getViewport(element); | |
| 43 viewport.voi.windowCenter = center; | |
| 44 viewport.voi.windowWidth = width; | |
| 45 cornerstone.setViewport(element, viewport); | |
| 46 UpdateViewportInformation(); | |
| 47 } | |
| 48 | |
| 49 | |
| 50 function SetFullWindowing() | |
| 51 { | |
| 52 var element = $('#dicomImage').get(0); | |
| 53 var viewport = cornerstone.getViewport(element); | |
| 54 var image = cornerstone.getEnabledElement(element).image; | |
| 55 | |
| 56 if (image.color) { | |
| 57 // Ignore color images | |
| 58 return; | |
| 59 } | |
| 60 | |
| 61 var minValue = image.minPixelValue; | |
| 62 var maxValue = image.maxPixelValue; | |
| 63 if (minValue == undefined || | |
| 64 maxValue == undefined || | |
| 65 minValue == maxValue) { | |
| 66 return; | |
| 67 } | |
| 68 | |
| 69 if (image.slope != undefined && | |
| 70 image.intercept != undefined) { | |
| 71 minValue = minValue * image.slope + image.intercept; | |
| 72 maxValue = maxValue * image.slope + image.intercept; | |
| 73 } | |
| 74 | |
| 75 viewport.voi.windowCenter = (minValue + maxValue) / 2.0; | |
| 76 viewport.voi.windowWidth = (maxValue - minValue) / 2.0; | |
| 77 cornerstone.setViewport(element, viewport); | |
| 78 UpdateViewportInformation(); | |
| 79 } | |
| 80 | |
| 81 | |
| 82 function SetDefaultWindowing() | |
| 83 { | |
| 84 var element = $('#dicomImage').get(0); | |
| 85 var viewport = cornerstone.getViewport(element); | |
| 86 var image = cornerstone.getEnabledElement(element).image; | |
| 87 | |
| 88 viewport.voi.windowCenter = image.windowCenter; | |
| 89 viewport.voi.windowWidth = image.windowWidth; | |
| 90 cornerstone.setViewport(element, viewport); | |
| 91 UpdateViewportInformation(); | |
| 92 } | |
| 93 | |
| 94 | |
| 95 function SetBoneWindowing() | |
| 96 { | |
| 97 SetWindowing(300, 2000); | |
| 98 } | |
| 99 | |
| 100 | |
| 101 function SetLungWindowing() | |
| 102 { | |
| 103 SetWindowing(-600, 1600); | |
| 104 } | |
| 105 | |
| 106 | |
| 107 function UpdateViewportInformation() | |
| 108 { | |
| 109 var element = $('#dicomImage').get(0); | |
| 110 var viewport = cornerstone.getViewport(element); | |
| 111 | |
| 112 $('#bottomleft').text('WW/WL:' + Math.round(viewport.voi.windowWidth) + '/' + Math.round(viewport.voi.windowCenter)); | |
| 113 $('#bottomright').text('Zoom: ' + viewport.scale.toFixed(2) + 'x'); | |
| 114 } | |
| 115 | |
| 116 | |
| 117 function ToggleSeriesInformation() | |
| 118 { | |
| 119 $('#topright').toggle(); | |
| 120 } | |
| 121 | |
| 122 | |
| 123 function ToggleInterpolation() | |
| 124 { | |
| 125 var element = $('#dicomImage').get(0); | |
| 126 var viewport = cornerstone.getViewport(element); | |
| 127 if (viewport.pixelReplication === true) { | |
| 128 viewport.pixelReplication = false; | |
| 129 } else { | |
| 130 viewport.pixelReplication = true; | |
| 131 } | |
| 132 cornerstone.setViewport(element, viewport); | |
| 133 } | |
| 134 | |
| 135 | |
| 136 function ToggleInversion() | |
| 137 { | |
| 138 var element = $('#dicomImage').get(0); | |
| 139 var viewport = cornerstone.getViewport(element); | |
| 140 if (viewport.invert === true) { | |
| 141 viewport.invert = false; | |
| 142 } else { | |
| 143 viewport.invert = true; | |
| 144 } | |
| 145 cornerstone.setViewport(element, viewport); | |
| 146 } | |
| 147 | |
| 148 | |
| 149 function DownloadInstance(instance) | |
| 150 { | |
| 151 // http://stackoverflow.com/a/3749395/881731 | |
| 152 var hiddenIFrameID = 'hiddenDownloader', | |
| 153 iframe = document.getElementById(hiddenIFrameID); | |
| 154 if (iframe === null) { | |
| 155 iframe = document.createElement('iframe'); | |
| 156 iframe.id = hiddenIFrameID; | |
| 157 iframe.style.display = 'none'; | |
| 158 document.body.appendChild(iframe); | |
| 159 } | |
| 160 iframe.src = '../../instances/' + instance + '/file'; | |
| 161 } | |
| 162 | |
| 163 | |
| 164 function AdjustZoom() | |
| 165 { | |
| 166 var element = $('#dicomImage').get(0); | |
| 167 cornerstone.fitToWindow(element); | |
| 168 } | |
| 169 | |
| 170 | |
| 171 function ZoomIn() | |
| 172 { | |
| 173 var element = $('#dicomImage').get(0); | |
| 174 var viewport = cornerstone.getViewport(element); | |
| 175 viewport.scale /= 0.5; | |
| 176 cornerstone.setViewport(element, viewport); | |
| 177 UpdateViewportInformation(); | |
| 178 } | |
| 179 | |
| 180 | |
| 181 function ZoomOut() | |
| 182 { | |
| 183 var element = $('#dicomImage').get(0); | |
| 184 var viewport = cornerstone.getViewport(element); | |
| 185 viewport.scale *= 0.5; | |
| 186 cornerstone.setViewport(element, viewport); | |
| 187 UpdateViewportInformation(); | |
| 188 } | |
| 189 | |
| 190 | |
| 191 | |
| 192 (function (cornerstone) { | |
| 193 'use strict'; | |
| 194 | |
| 195 function PrintRange(pixels) | |
| 196 { | |
| 197 var a = Infinity; | |
| 198 var b = -Infinity; | |
| 199 | |
| 200 for (var i = 0, length = pixels.length; i < length; i++) { | |
| 201 if (pixels[i] < a) | |
| 202 a = pixels[i]; | |
| 203 if (pixels[i] > b) | |
| 204 b = pixels[i]; | |
| 205 } | |
| 206 | |
| 207 console.log(a + ' ' + b); | |
| 208 } | |
| 209 | |
| 210 function ChangeDynamics(pixels, source1, target1, source2, target2) | |
| 211 { | |
| 212 var scale = (target2 - target1) / (source2 - source1); | |
| 213 var offset = (target1) - scale * source1; | |
| 214 | |
| 215 for (var i = 0, length = pixels.length; i < length; i++) { | |
| 216 pixels[i] = scale * pixels[i] + offset; | |
| 217 } | |
| 218 } | |
| 219 | |
| 220 | |
| 221 function getPixelDataDeflate(image) { | |
| 222 // Decompresses the base64 buffer that was compressed with Deflate | |
| 223 var s = pako.inflate(window.atob(image.Orthanc.PixelData)); | |
| 224 var pixels = null; | |
| 225 | |
| 226 if (image.color) { | |
| 227 var buf = new ArrayBuffer(s.length / 3 * 4); // RGB32 | |
| 228 pixels = new Uint8Array(buf); | |
| 229 var index = 0; | |
| 230 for (var i = 0, length = s.length; i < length; i += 3) { | |
| 231 pixels[index++] = s[i]; | |
| 232 pixels[index++] = s[i + 1]; | |
| 233 pixels[index++] = s[i + 2]; | |
| 234 pixels[index++] = 255; // Alpha channel | |
| 235 } | |
| 236 } else { | |
| 237 var buf = new ArrayBuffer(s.length * 2); // int16_t | |
| 238 pixels = new Int16Array(buf); | |
| 239 var index = 0; | |
| 240 for (var i = 0, length = s.length; i < length; i += 2) { | |
| 241 var lower = s[i]; | |
| 242 var upper = s[i + 1]; | |
| 243 pixels[index] = lower + upper * 256; | |
| 244 index++; | |
| 245 } | |
| 246 } | |
| 247 | |
| 248 return pixels; | |
| 249 } | |
| 250 | |
| 251 | |
| 252 // http://stackoverflow.com/a/11058858/881731 | |
| 253 function str2ab(str) { | |
| 254 var buf = new ArrayBuffer(str.length); | |
| 255 var pixels = new Uint8Array(buf); | |
| 256 for (var i = 0, strLen=str.length; i<strLen; i++) { | |
| 257 pixels[i] = str.charCodeAt(i); | |
| 258 } | |
| 259 return pixels; | |
| 260 } | |
| 261 | |
| 262 function getPixelDataJpeg(image) { | |
| 263 var jpegReader = new JpegImage(); | |
| 264 var jpeg = str2ab(window.atob(image.Orthanc.PixelData)); | |
| 265 jpegReader.parse(jpeg); | |
| 266 var s = jpegReader.getData(image.width, image.height); | |
| 267 var pixels = null; | |
| 268 | |
| 269 if (image.color) { | |
| 270 var buf = new ArrayBuffer(s.length / 3 * 4); // RGB32 | |
| 271 pixels = new Uint8Array(buf); | |
| 272 var index = 0; | |
| 273 for (var i = 0, length = s.length; i < length; i += 3) { | |
| 274 pixels[index++] = s[i]; | |
| 275 pixels[index++] = s[i + 1]; | |
| 276 pixels[index++] = s[i + 2]; | |
| 277 pixels[index++] = 255; // Alpha channel | |
| 278 } | |
| 279 } else { | |
| 280 var buf = new ArrayBuffer(s.length * 2); // uint8_t | |
| 281 pixels = new Int16Array(buf); | |
| 282 var index = 0; | |
| 283 for (var i = 0, length = s.length; i < length; i++) { | |
| 284 pixels[index] = s[i]; | |
| 285 index++; | |
| 286 } | |
| 287 | |
| 288 if (image.Orthanc.Stretched) { | |
| 289 ChangeDynamics(pixels, 0, image.Orthanc.StretchLow, 255, image.Orthanc.StretchHigh); | |
| 290 } | |
| 291 } | |
| 292 | |
| 293 return pixels; | |
| 294 } | |
| 295 | |
| 296 | |
| 297 function getOrthancImage(imageId) { | |
| 298 var result = null; | |
| 299 | |
| 300 $.ajax({ | |
| 301 type: 'GET', | |
| 302 url: '../instances/' + compression + '-' + imageId, | |
| 303 dataType: 'json', | |
| 304 cache: true, | |
| 305 async: false, | |
| 306 success: function(image) { | |
| 307 image.imageId = imageId; | |
| 308 if (image.color) | |
| 309 image.render = cornerstone.renderColorImage; | |
| 310 else | |
| 311 image.render = cornerstone.renderGrayscaleImage; | |
| 312 | |
| 313 image.getPixelData = function() { | |
| 314 if (image.Orthanc.Compression == 'Deflate') | |
| 315 return getPixelDataDeflate(this); | |
| 316 | |
| 317 if (image.Orthanc.Compression == 'Jpeg') | |
| 318 return getPixelDataJpeg(this); | |
| 319 | |
| 320 // Unknown compression | |
| 321 return null; | |
| 322 } | |
| 323 | |
| 324 result = image; | |
| 325 }, | |
| 326 error: function() { | |
| 327 return null; | |
| 328 } | |
| 329 }); | |
| 330 | |
| 331 var deferred = $.Deferred(); | |
| 332 deferred.resolve(result); | |
| 333 return deferred; | |
| 334 } | |
| 335 | |
| 336 // register our imageLoader plugin with cornerstone | |
| 337 cornerstone.registerImageLoader('', getOrthancImage); | |
| 338 | |
| 339 }(cornerstone)); | |
| 340 | |
| 341 | |
| 342 $(document).ready(function() { | |
| 343 $('#open-toolbar').button({ | |
| 344 icons: { primary: 'ui-icon-custom-orthanc' }, | |
| 345 text: false | |
| 346 }); | |
| 347 | |
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348 $('#unstable').tooltip(); |
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349 |
| 0 | 350 var series = window.url('?series', window.location.search); |
| 351 if (series == null) | |
| 352 return; | |
| 353 | |
| 354 console.log('Displaying series: ' + series); | |
| 355 var instances = [ ]; | |
| 356 | |
| 357 $.ajax({ | |
| 358 type: 'GET', | |
| 359 url: '../series/' + series, | |
| 360 dataType: 'json', | |
| 361 cache: false, | |
| 362 async: false, | |
| 363 success: function(volume) { | |
| 364 if (volume.SortedInstances.length != 0) { | |
| 365 instances = volume.SortedInstances; | |
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366 $('#topright').html(volume.PatientID + '<br/>' + |
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367 volume.PatientName + '<br/>' + |
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368 volume.StudyDescription + '<br/>' + |
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369 volume.SeriesDescription + '<br/>'); |
| 0 | 370 } |
| 371 } | |
| 372 }); | |
| 373 | |
| 374 if (instances.length == 0) | |
| 375 { | |
| 376 console.log('No image in this series'); | |
| 377 return; | |
| 378 } | |
| 379 | |
| 380 | |
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381 $.ajax({ |
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382 type: 'GET', |
| 19 | 383 url: '../is-stable-series/' + series, |
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384 dataType: 'json', |
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385 cache: false, |
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386 async: true, |
| 19 | 387 success: function(stable) { |
| 388 if (!stable) { | |
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389 $('#unstable').show(); |
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390 } |
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391 } |
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392 }); |
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393 |
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394 |
| 0 | 395 var currentImageIndex = 0; |
| 396 | |
| 397 // updates the image display | |
| 398 function updateTheImage(imageIndex) { | |
| 399 return cornerstone.loadAndCacheImage(instances[imageIndex]).then(function(image) { | |
| 400 currentImageIndex = imageIndex; | |
| 401 var viewport = cornerstone.getViewport(element); | |
| 402 cornerstone.displayImage(element, image, viewport); | |
| 403 }); | |
| 404 } | |
| 405 | |
| 406 // image enable the element | |
| 407 var element = $('#dicomImage').get(0); | |
| 408 cornerstone.enable(element); | |
| 409 | |
| 410 // set event handlers | |
| 411 /*function onImageRendered(e, eventData) { | |
| 412 $('#topright').text('Render Time:' + eventData.renderTimeInMs + ' ms'); | |
| 413 } | |
| 414 $(element).on('CornerstoneImageRendered', onImageRendered);*/ | |
| 415 | |
| 416 // load and display the image | |
| 417 var imagePromise = updateTheImage(0); | |
| 418 | |
| 419 // add handlers for mouse events once the image is loaded. | |
| 420 imagePromise.then(function() { | |
| 421 viewport = cornerstone.getViewport(element); | |
| 422 UpdateViewportInformation(); | |
| 423 | |
| 424 // add event handlers to pan image on mouse move | |
| 425 $('#dicomImage').mousedown(function (e) { | |
| 426 var lastX = e.pageX; | |
| 427 var lastY = e.pageY; | |
| 428 var mouseButton = e.which; | |
| 429 | |
| 430 $(toolbar).hide(); | |
| 431 | |
| 432 $(document).mousemove(function (e) { | |
| 433 var deltaX = e.pageX - lastX, | |
| 434 deltaY = e.pageY - lastY; | |
| 435 lastX = e.pageX; | |
| 436 lastY = e.pageY; | |
| 437 | |
| 438 if (mouseButton == 1) { | |
| 439 var viewport = cornerstone.getViewport(element); | |
| 440 viewport.voi.windowWidth += (deltaX / viewport.scale); | |
| 441 viewport.voi.windowCenter += (deltaY / viewport.scale); | |
| 442 cornerstone.setViewport(element, viewport); | |
| 443 UpdateViewportInformation(); | |
| 444 } | |
| 445 else if (mouseButton == 2) { | |
| 446 var viewport = cornerstone.getViewport(element); | |
| 447 viewport.translation.x += (deltaX / viewport.scale); | |
| 448 viewport.translation.y += (deltaY / viewport.scale); | |
| 449 cornerstone.setViewport(element, viewport); | |
| 450 } | |
| 451 else if (mouseButton == 3) { | |
| 452 var viewport = cornerstone.getViewport(element); | |
| 453 viewport.scale += (deltaY / 100); | |
| 454 cornerstone.setViewport(element, viewport); | |
| 455 UpdateViewportInformation(); | |
| 456 } | |
| 457 }); | |
| 458 | |
| 459 $(document).mouseup(function (e) { | |
| 460 $(document).unbind('mousemove'); | |
| 461 $(document).unbind('mouseup'); | |
| 462 }); | |
| 463 }); | |
| 464 | |
| 465 $('#dicomImage').on('mousewheel DOMMouseScroll', function (e) { | |
| 466 // Firefox e.originalEvent.detail > 0 scroll back, < 0 scroll forward | |
| 467 // chrome/safari e.originalEvent.wheelDelta < 0 scroll back, > 0 scroll forward | |
| 468 if (e.originalEvent.wheelDelta < 0 || e.originalEvent.detail > 0) { | |
| 469 currentImageIndex ++; | |
| 470 if (currentImageIndex >= instances.length) { | |
| 471 currentImageIndex = instances.length - 1; | |
| 472 } | |
| 473 } else { | |
| 474 currentImageIndex --; | |
| 475 if (currentImageIndex < 0) { | |
| 476 currentImageIndex = 0; | |
| 477 } | |
| 478 } | |
| 479 | |
| 480 updateTheImage(currentImageIndex); | |
| 481 $('#slider').slider("option", "value", currentImageIndex); | |
| 482 | |
| 483 //prevent page fom scrolling | |
| 484 return false; | |
| 485 }); | |
| 486 }); | |
| 487 | |
| 488 | |
| 489 $('#slider').slider({ | |
| 490 min: 0, | |
| 491 max: instances.length - 1, | |
| 492 slide: function(event, ui) { | |
| 493 updateTheImage(ui.value); | |
| 494 } | |
| 495 }); | |
| 496 | |
| 497 var toolbar = $.jsPanel({ | |
| 498 position: { top: 50, left: 10 }, | |
| 499 size: { width: 155, height: 200 }, | |
| 500 content: $('#toolbar-content').clone().show(), | |
| 501 controls: { buttons: 'none' }, | |
| 502 title: '<a target="_blank" href="http://www.orthanc-server.com/"><img src="images/orthanc-logo.png" /></a>' | |
| 503 }); | |
| 504 | |
| 505 $('#open-toolbar').click(function() { | |
| 506 toolbar.toggle(); | |
| 507 }); | |
| 508 | |
| 509 $(toolbar).hide(); | |
| 510 | |
| 511 $('.toolbar-view', toolbar).buttonset() | |
| 512 .children().first().button({ | |
| 513 icons: { primary: 'ui-icon-info' }, | |
| 514 text: false | |
| 515 }).click(ToggleSeriesInformation).next().button({ | |
| 516 icons: { primary: 'ui-icon-custom-inversion' }, | |
| 517 text: false | |
| 518 }).click(ToggleInversion).next().button({ | |
| 519 icons: { primary: 'ui-icon-custom-interpolation' }, | |
| 520 text: false | |
| 521 }).click(ToggleInterpolation).next().button({ | |
| 522 icons: { primary: 'ui-icon-circle-triangle-s' }, | |
| 523 text: false | |
| 524 }).click(function() { | |
| 525 DownloadInstance(instances[currentImageIndex]); | |
| 526 }); | |
| 527 | |
| 528 $('.toolbar-zoom', toolbar).buttonset() | |
| 529 .children().first().button({ | |
| 530 icons: { primary: 'ui-icon-image' }, | |
| 531 text: false | |
| 532 }).click(AdjustZoom).next().button({ | |
| 533 icons: { primary: 'ui-icon-zoomin' }, | |
| 534 text: false | |
| 535 }).click(ZoomIn).next().button({ | |
| 536 icons: { primary: 'ui-icon-zoomout' }, | |
| 537 text: false | |
| 538 }).click(ZoomOut); | |
| 539 | |
| 540 $('.toolbar-windowing', toolbar).buttonset() | |
| 541 .children().first().button({ | |
| 542 icons: { primary: 'ui-icon-custom-default' }, | |
| 543 text: false | |
| 544 }).click(SetDefaultWindowing).next().button({ | |
| 545 icons: { primary: 'ui-icon-custom-stretch' }, | |
| 546 text: false | |
| 547 }).click(SetFullWindowing).next().button({ | |
| 548 icons: { primary: 'ui-icon-custom-lung' }, | |
| 549 text: false | |
| 550 }).click(SetLungWindowing).next().button({ | |
| 551 icons: { primary: 'ui-icon-custom-bone' }, | |
| 552 text: false | |
| 553 }).click(SetBoneWindowing); | |
| 554 | |
| 555 | |
| 556 function SetCompression(c) | |
| 557 { | |
| 558 compression = c; | |
| 559 cornerstone.imageCache.purgeCache(); | |
| 560 updateTheImage(currentImageIndex); | |
| 561 cornerstone.invalidateImageId(instances[currentImageIndex]); | |
| 562 } | |
| 563 | |
| 564 $('.toolbar-quality', toolbar).buttonset() | |
| 565 .children().first().button({ | |
| 566 label: 'L' | |
| 567 }).click(function() { | |
| 568 SetCompression('jpeg80'); | |
| 569 }).next().button({ | |
| 570 label: 'M' | |
| 571 }).click(function() { | |
| 572 SetCompression('jpeg95'); | |
| 573 }).next().button({ | |
| 574 label: 'H' | |
| 575 }).click(function() { | |
| 576 SetCompression('deflate'); | |
| 577 }); | |
| 578 | |
| 579 | |
| 580 ResizeCornerstone(); | |
| 581 $(window).resize(function(e) { | |
| 582 if (!$(e.target).hasClass('jsPanel')) // Ignore toolbar resizing | |
| 583 { | |
| 584 ResizeCornerstone(); | |
| 585 } | |
| 586 }); | |
| 587 | |
| 588 }); |