Mercurial > hg > digilib-old
annotate webapp/src/main/webapp/jquery/jquery.digilib.js @ 1075:1e4f4964e9c2
CLOSED - # 25: scroll arrows have wrong direction with mirror and rot
https://it-dev.mpiwg-berlin.mpg.de/tracs/digilib/ticket/25
author | robcast |
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date | Thu, 17 May 2012 19:29:28 +0200 |
parents | d9abeaa44c49 |
children | 05960888493c |
rev | line source |
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1 /* Copyright (c) 2011 Martin Raspe, Robert Casties |
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2 |
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3 This program is free software: you can redistribute it and/or modify |
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4 it under the terms of the GNU Lesser General Public License as published by |
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5 the Free Software Foundation, either version 2 of the License, or |
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6 (at your option) any later version. |
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7 |
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8 This program is distributed in the hope that it will be useful, |
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9 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 GNU Lesser General Public License for more details. |
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12 |
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13 You should have received a copy of the GNU Lesser General Public License |
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14 along with this program. If not, see <http://www.gnu.org/licenses/>. |
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15 |
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16 Authors: |
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17 Martin Raspe, Robert Casties, 11.1.2011 |
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18 */ |
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19 |
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20 /** |
604 | 21 * digilib jQuery plugin |
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22 **/ |
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23 |
767 | 24 /*jslint browser: true, debug: true, forin: true |
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25 */ |
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26 |
636 | 27 // fallback for console.log calls |
797 | 28 if (typeof console === 'undefined') { |
636 | 29 var console = { |
692 | 30 log : function(){}, |
31 debug : function(){}, | |
32 error : function(){} | |
33 }; | |
779 | 34 var customConsole = false; // set to true if debugging for MS IE |
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35 } |
604 | 36 |
37 (function($) { | |
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38 |
605 | 39 var defaults = { |
616 | 40 // version of this script |
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41 'version' : 'jquery.digilib.js 2.1.7a0', |
616 | 42 // logo url |
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43 'logoUrl' : 'img/digilib-logo-text1.png', |
635 | 44 // homepage url (behind logo) |
45 'homeUrl' : 'http://digilib.berlios.de', | |
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46 // base URL to digilib (e.g. 'http://digilib.mpiwg-berlin.mpg.de/digitallibrary') |
744 | 47 'digilibBaseUrl' : null, |
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48 // base URL to Scaler servlet (usually digilibBaseUrl+'/servlet/Scaler') |
652 | 49 'scalerBaseUrl' : null, |
995 | 50 // prefix of digilib classes in CSS styles |
51 'cssPrefix' : 'dl-', | |
610 | 52 // list of Scaler parameters |
627 | 53 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
54 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
55 // Scaler parameter defaults | |
643 | 56 'pn' : 1, |
627 | 57 'ww' : 1.0, |
58 'wh' : 1.0, | |
59 'wx' : 0.0, | |
60 'wy' : 0.0, | |
61 'ws' : 1.0, | |
643 | 62 'mo' : '', |
63 'rot' : 0, | |
64 'cont' : 0, | |
65 'brgt' : 0, | |
66 'rgbm' : '0/0/0', | |
67 'rgba' : '0/0/0', | |
68 'ddpi' : null, | |
69 'ddpix' : null, | |
70 'ddpiy' : null, | |
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71 // list of digilib parameters |
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72 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','ddpi','mk','clop'], |
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73 // digilib parameter defaults |
643 | 74 'mk' : '', |
650 | 75 'clop' : '', |
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76 // list of additional parameters (for page outside of digilib) |
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77 'additionalParamNames' : [], |
914 | 78 // list of parameters to suppress when generating page URL |
79 'suppressParamNames' : null, | |
643 | 80 // mode of operation: |
81 // fullscreen = take parameters from page URL, keep state in page URL | |
82 // embedded = take parameters from Javascript options, keep state inside object | |
610 | 83 'interactionMode' : 'fullscreen', |
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84 // default size of preview image for drag-scroll (preferrably same as Bird's Eye View image) |
954 | 85 'previewImgWidth' : 200, |
86 'previewImgHeight' : 200, | |
87 // maximum width or height of preview background image for drag-scroll | |
778 | 88 'maxBgSize' : 10000, |
795 | 89 // parameters used by background image |
954 | 90 'previewImgParamNames' : ['fn','pn','dw','dh','mo','rot'], |
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91 // reserved space in full page display (default value accounts for body margins) |
990 | 92 'scalerInsets' : { 'x' : 26, 'y': 20 } |
610 | 93 }; |
655 | 94 |
786 | 95 // list of plugins |
96 var plugins = {}; | |
787 | 97 // object to export functions to plugins |
948 | 98 var fn = null; |
786 | 99 // affine geometry plugin stub |
948 | 100 var geom = null; |
944 | 101 // rectangle with maximum zoom area |
948 | 102 var FULL_AREA = null; |
944 | 103 // limit for float comparison |
947 | 104 var EPSILON = 0.0001; |
105 // list of buttons | |
106 var buttons = {}; | |
655 | 107 |
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108 var actions = { |
954 | 109 /** init: digilib initialization |
110 * | |
111 * @param options | |
112 * @returns | |
113 */ | |
668 | 114 init : function(options) { |
786 | 115 // import geometry classes |
116 if (plugins.geometry == null) { | |
117 $.error("jquery.digilib.geometry plugin not found!"); | |
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118 // last straw: old version |
785 | 119 geom = dlGeometry(); |
120 } else { | |
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121 // geometry plugin puts classes in the shared fn |
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122 geom = fn.geometry; |
785 | 123 } |
124 FULL_AREA = geom.rectangle(0, 0, 1, 1); | |
788 | 125 |
668 | 126 // settings for this digilib instance are merged from defaults and options |
127 var settings = $.extend({}, defaults, options); | |
128 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
129 var queryParams = {}; | |
130 if (isFullscreen) { | |
1015 | 131 queryParams = parseQueryParams(); |
132 // filter additional parameters | |
133 for (var p in queryParams) { | |
134 if ($.inArray(p, settings.digilibParamNames) < 0) { | |
135 settings.additionalParamNames.push(p); | |
136 } | |
137 } | |
668 | 138 } |
139 return this.each(function() { | |
140 var $elem = $(this); | |
141 var data = $elem.data('digilib'); | |
688 | 142 var params, elemSettings; |
668 | 143 // if the plugin hasn't been initialized yet |
144 if (!data) { | |
145 // merge query parameters | |
146 if (isFullscreen) { | |
688 | 147 params = queryParams; |
668 | 148 } else { |
688 | 149 params = parseImgParams($elem); |
785 | 150 if ($.cookie) { |
727 | 151 // retrieve params from cookie |
152 var ck = "digilib-embed:fn:" + escape(params.fn) + ":pn:" + (params.pn || '1'); | |
785 | 153 var cs = $.cookie(ck); |
727 | 154 console.debug("get cookie=", ck, " value=", cs); |
155 if (cs) { | |
156 var cp = parseQueryString(cs); | |
728 | 157 // ignore fn and pn from cookie TODO: should we keep pn? |
158 delete cp.fn; | |
159 delete cp.pn; | |
785 | 160 $.extend(params, cp); |
727 | 161 } |
162 } | |
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163 } |
856 | 164 // setup $elem.data, needs "deep copy" because of nesting |
849 | 165 elemSettings = $.extend(true, {}, settings, params); |
697 | 166 data = { |
856 | 167 // let $(this) know about $(this) :-) |
668 | 168 $elem : $elem, |
856 | 169 // let $elem have its own copy of settings |
668 | 170 settings : elemSettings, |
856 | 171 // and of the URL query parameters |
965 | 172 queryParams : params |
668 | 173 }; |
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174 // store in jQuery data element |
668 | 175 $elem.data('digilib', data); |
949 | 176 } else { |
1015 | 177 // data exists |
178 elemSettings = data.settings; | |
668 | 179 } |
180 unpackParams(data); | |
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181 // list of current insets (dynamic for buttons etc.) |
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182 data.currentInsets = {'static' : elemSettings.scalerInsets}; |
744 | 183 // check if browser knows *background-size |
741 | 184 for (var bs in {'':1, '-moz-':1, '-webkit-':1, '-o-':1}) { |
185 if ($elem.css(bs+'background-size')) { | |
186 data.hasBgSize = true; | |
187 data.bgSizeName = bs+'background-size'; | |
188 break; | |
189 } | |
190 } | |
944 | 191 data.hasPreviewBg = false; |
942 | 192 // check if browser supports AJAX-like URL-replace without reload |
193 data.hasAsyncReload = (typeof history.replaceState === 'function'); | |
993 | 194 // check if browser sets complete on cached images |
195 data.hasCachedComplete = ! $.browser.mozilla; | |
744 | 196 // check digilib base URL |
197 if (elemSettings.digilibBaseUrl == null) { | |
198 if (isFullscreen) { | |
199 // take current host | |
200 var url = window.location.toString(); | |
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201 // assume the page lives in [webapp]/jquery/ |
915 | 202 var pos = url.indexOf('/jquery/'); |
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203 if (pos > 0) { |
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204 elemSettings.digilibBaseUrl = url.substring(0, pos); |
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205 } |
744 | 206 } else { |
1015 | 207 // may be we got the scaler URL from the img |
744 | 208 var url = elemSettings.scalerBaseUrl; |
209 if (url) { | |
210 // build it from scaler URL | |
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211 var pos = url.indexOf('/servlet/Scaler'); |
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212 elemSettings.digilibBaseUrl = url.substring(0, pos); |
744 | 213 } |
214 } | |
215 } | |
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216 // check scaler base URL |
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217 if (elemSettings.scalerBaseUrl == null) { |
1015 | 218 if (elemSettings.digilibBaseUrl) { |
219 elemSettings.scalerBaseUrl = elemSettings.digilibBaseUrl + '/servlet/Scaler'; | |
220 } | |
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221 } |
947 | 222 // set up event handlers |
223 $(data).on('update', handleUpdate); // handleUpdate needs to be the first handler for update | |
224 $(data).on('changeZoomArea', handleChangeZoomArea); | |
786 | 225 // initialise plugins |
787 | 226 for (n in plugins) { |
227 var p = plugins[n]; | |
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228 if (typeof p.init === 'function') { |
1015 | 229 // call the plugins init() method |
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230 p.init(data); |
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231 } |
786 | 232 } |
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233 // trigger unpack params handlers |
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234 $(data).trigger('unpack'); |
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235 // get image info from server if needed |
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236 if (data.scaleMode === 'pixel' || data.scaleMode === 'size') { |
797 | 237 loadImageInfo(data); // triggers "imageInfo" on completion |
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238 } |
947 | 239 // create HTML structure for scaler |
779 | 240 setupScalerDiv(data); |
795 | 241 // send setup event |
242 $(data).trigger('setup'); | |
668 | 243 }); |
244 }, | |
245 | |
954 | 246 /** destroy: clean up digilib |
247 * | |
248 * @param data | |
249 * @returns | |
250 */ | |
668 | 251 destroy : function(data) { |
252 return this.each(function(){ | |
253 var $elem = $(this); | |
917 | 254 $(window).off('.digilib'); // unbind all digilibs(?) |
668 | 255 data.digilib.remove(); |
256 $elem.removeData('digilib'); | |
257 }); | |
258 }, | |
259 | |
1052 | 260 /** show the 'about' window |
954 | 261 * |
262 * @param data | |
263 */ | |
1052 | 264 about : function(data) { |
265 //FIXME: highlightButtons(data, 'about', on); | |
266 var $elem = data.$elem; | |
267 var settings = data.settings; | |
268 var cssPrefix = settings.cssPrefix; | |
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269 var aboutSelector = '#'+cssPrefix+'about'; |
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270 if (isOnScreen(data, aboutSelector)) return; |
1052 | 271 // make relative logoUrl absolute |
272 var logoUrl = settings.logoUrl; | |
273 if (logoUrl.charAt(0) !== '/' && logoUrl.substring(0,3) !== 'http') { | |
274 logoUrl = settings.digilibBaseUrl + '/' + logoUrl; | |
275 } | |
276 var html = '\ | |
277 <div id="'+cssPrefix+'about" class="'+cssPrefix+'about" style="display:none">\ | |
278 <p>Digilib Image Viewer</p>\ | |
279 <a href="'+settings.homeUrl+'">\ | |
280 <img class="'+settings.cssPrefix+'logo" title="Digilib" src="'+logoUrl+'"/>\ | |
281 </a>\ | |
282 <p>Version: '+settings.version+'</p>\ | |
283 </div>'; | |
284 $about = $(html); | |
285 $about.appendTo($elem); | |
286 $about.on('click.digilib', function () { | |
287 withdraw($about); | |
288 }); | |
289 $about.fadeIn(); | |
290 centerOnScreen(data, $about); | |
668 | 291 }, |
655 | 292 |
954 | 293 /** goto given page nr (+/-: relative) |
294 * | |
295 * @param data | |
296 * @param pageNr | |
297 * @returns {Boolean} | |
298 */ | |
668 | 299 gotoPage : function (data, pageNr) { |
300 var settings = data.settings; | |
301 var oldpn = settings.pn; | |
716 | 302 if (pageNr == null) { |
303 pageNr = window.prompt("Goto page number", oldpn); | |
304 } | |
668 | 305 var pn = setNumValue(settings, "pn", pageNr); |
306 if (pn == null) return false; // nothing happened | |
307 if (pn < 1) { | |
308 alert("no such page (page number too low)"); | |
309 settings.pn = oldpn; | |
310 return false; | |
311 } | |
767 | 312 // TODO: how do we get pt? |
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313 if (settings.pt != null) { |
668 | 314 if (pn > settings.pt) { |
315 alert("no such page (page number too high)"); | |
623 | 316 settings.pn = oldpn; |
317 return false; | |
634 | 318 } |
668 | 319 } |
320 // reset mk and others(?) | |
321 data.marks = []; | |
927 | 322 data.zoomArea = FULL_AREA.copy(); |
668 | 323 // then reload |
324 redisplay(data); | |
325 }, | |
654 | 326 |
954 | 327 /** zoom by a given factor |
328 * | |
329 * @param data | |
330 * @param factor | |
331 */ | |
668 | 332 zoomBy : function (data, factor) { |
333 zoomBy(data, factor); | |
334 }, | |
647 | 335 |
954 | 336 /** zoom to area (or interactive) |
337 * | |
338 * @param data | |
339 * @param area | |
340 */ | |
767 | 341 zoomArea : function (data, area) { |
342 if (area == null) { | |
343 // interactively | |
344 zoomArea(data); | |
345 } else { | |
346 data.zoomArea = geom.rectangle(area); | |
347 redisplay(data); | |
348 } | |
668 | 349 }, |
650 | 350 |
954 | 351 /** zoom out to full page |
352 * | |
353 * @param data | |
354 * @param mode | |
355 */ | |
668 | 356 zoomFull : function (data, mode) { |
1031 | 357 var settings = data.settings; |
917 | 358 data.zoomArea = FULL_AREA.copy(); |
972 | 359 setFitMode(data, mode); |
360 // zoom full only works in screen mode | |
361 setScaleMode(data, 'screen'); | |
668 | 362 redisplay(data); |
363 }, | |
364 | |
954 | 365 /** mirror the image |
366 * | |
367 * @param data | |
368 * @param mode | |
369 */ | |
668 | 370 mirror : function (data, mode) { |
371 var flags = data.scalerFlags; | |
372 if (mode === 'h') { | |
373 if (flags.hmir) { | |
374 delete flags.hmir; | |
375 } else { | |
376 flags.hmir = 1; | |
377 } | |
378 } else { | |
379 if (flags.vmir) { | |
380 delete flags.vmir; | |
381 } else { | |
382 flags.vmir = 1; | |
383 } | |
384 } | |
385 redisplay(data); | |
386 }, | |
650 | 387 |
954 | 388 /** rotate the image |
389 * | |
390 * @param data | |
391 * @param angle | |
392 */ | |
668 | 393 rotate : function (data, angle) { |
394 var rot = data.settings.rot; | |
395 if (angle == null) { | |
396 angle = window.prompt("Rotation angle:", rot); | |
397 } | |
398 data.settings.rot = angle; | |
399 redisplay(data); | |
400 }, | |
401 | |
954 | 402 /** change brightness |
403 * | |
404 * @param data | |
405 * @param factor | |
406 */ | |
668 | 407 brightness : function (data, factor) { |
408 var brgt = data.settings.brgt; | |
409 if (factor == null) { | |
410 factor = window.prompt("Brightness (-255..255)", brgt); | |
411 } | |
412 data.settings.brgt = factor; | |
413 redisplay(data); | |
414 }, | |
415 | |
954 | 416 /** change contrast |
417 * | |
418 * @param data | |
419 * @param factor | |
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420 * @param brightness : if given, adjust brightness along with contrast |
954 | 421 */ |
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422 contrast : function (data, factor, brightness) { |
668 | 423 var cont = data.settings.cont; |
424 if (factor == null) { | |
425 factor = window.prompt("Contrast (-8, 8)", cont); | |
426 } | |
427 data.settings.cont = factor; | |
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428 if (brightness) { |
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429 var brgt = 127 - (127 * Math.pow(2, factor)); |
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430 data.settings.brgt = brgt; |
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431 } |
668 | 432 redisplay(data); |
688 | 433 }, |
710 | 434 |
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435 /** change rgb contrast and brightness |
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436 * |
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437 * @param data |
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438 * @param rgbm |
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439 * @param rgba |
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440 */ |
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441 setRGB : function (data, rgbm, rgba) { |
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442 var oldRgbm = data.settings.rgbm; |
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443 var oldRgba = data.settings.rgba; |
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444 if (rgbm == null && rgba == null) { |
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445 var rgb = window.prompt("RGBm, RGBa (m_r/m_g/m_b, a_r/a_g/a_b)", oldRgbm+', '+oldRgba); |
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446 if (rgb != null) { |
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447 rgbs = rgb.split(/,\s*/); |
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448 if (rgbs.length == 2) { |
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449 data.settings.rgbm = rgbs[0]; |
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450 data.settings.rgba = rgbs[1]; |
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451 redisplay(data); |
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452 } |
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453 } |
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454 } else { |
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455 if (rgbm != null) data.settings.rgbm = rgbm; |
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456 if (rgba != null) data.settings.rgba = rgba; |
1052 | 457 redisplay(data); |
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458 } |
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459 }, |
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460 |
954 | 461 /** reset image parameters to defaults |
462 * TODO: improve this! | |
463 * | |
464 * @param data | |
465 */ | |
688 | 466 reset : function (data) { |
467 var settings = data.settings; | |
468 var paramNames = settings.digilibParamNames; | |
469 var params = data.queryParams; | |
470 // delete all digilib parameters | |
471 for (var i = 0; i < paramNames.length; i++) { | |
472 var paramName = paramNames[i]; | |
473 delete settings[paramName]; | |
713
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474 } |
735
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improved some embedded buttons; fixed reset function
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475 settings.fn = params.fn || ''; // no default defined |
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476 settings.pn = params.pn || defaults.pn; |
986 | 477 var size = getFullscreenImgSize(data); |
478 settings.dw = params.dw || size.width; | |
479 settings.dh = params.dh || size.height; | |
946 | 480 settings.visibleButtonSets = 1; // FIXME |
735
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481 // resets zoomArea, marks, scalerflags |
917 | 482 data.zoomArea = FULL_AREA.copy(); |
735
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483 data.marks = []; |
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484 data.scalerFlags = {}; |
712 | 485 delete data.dlOpts.fitwidth; |
486 delete data.dlOpts.fitheight; | |
986 | 487 data.scaleMode = 'screen'; |
688 | 488 redisplay(data); |
689 | 489 }, |
490 | |
954 | 491 /** presents a reference url (returns value if noprompt) |
492 * | |
493 * @param data | |
494 * @param noprompt | |
495 * @returns | |
496 */ | |
703 | 497 reference : function (data, noprompt) { |
744 | 498 var url = getDigilibUrl(data); |
703 | 499 if (noprompt == null) { |
500 window.prompt("URL reference to the current view", url); | |
1011 | 501 // return nothing so we can use is in javascript: url without reload |
502 return; | |
703 | 503 } |
504 return url; | |
505 }, | |
710 | 506 |
1011 | 507 /** |
508 * Returns URL to the full digilib.html with the current parameters. | |
509 * Redirects immediately with mode=open. | |
510 * | |
511 * @param data | |
512 * @param mode | |
513 */ | |
514 digilibUrl : function (data, mode) { | |
515 var url = getDigilibUrl(data, '/jquery/digilib.html'); | |
516 if (mode === 'open') { | |
517 // redirect | |
518 window.location = url; | |
519 } else if (mode === 'open_new') { | |
520 // open new window | |
521 window.open(url); | |
522 return; | |
523 } | |
524 return url; | |
525 }, | |
526 | |
527 | |
954 | 528 /** set image quality |
529 * | |
530 * @param data | |
531 * @param qual | |
532 */ | |
748 | 533 setQuality : function (data, qual) { |
703 | 534 var oldq = getQuality(data); |
535 if (qual == null) { | |
536 qual = window.prompt("Image quality (0..2)", oldq); | |
537 } | |
538 qual = parseInt(qual, 10); | |
539 if (qual >= 0 && qual <= 2) { | |
540 setQuality(data, qual); | |
541 redisplay(data); | |
542 } | |
754
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543 }, |
760
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544 |
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545 /** set image size |
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546 * |
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547 * @param data |
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548 * @param size |
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549 */ |
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550 setSize : function (data, size) { |
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551 var olds = data.settings.ws; |
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552 if (size == null) { |
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553 size = window.prompt("Image size (1=screen size)", olds); |
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554 } |
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555 size = parseFloat(size); |
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556 if (size > 0) { |
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557 data.settings.ws = size; |
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558 redisplay(data); |
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559 } |
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560 }, |
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561 |
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562 /** calibrate (set client screen dpi) |
954 | 563 * |
564 * @param data | |
565 * @param res | |
566 */ | |
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567 calibrate : function (data, res) { |
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568 var oldRes = data.settings.ddpi; |
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569 if (res == null) { |
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570 res = window.prompt("Display resolution (dpi)", oldRes); |
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571 } |
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572 if (res != null) { |
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573 data.settings.ddpi = res; |
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574 redisplay(data); |
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575 } |
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576 }, |
775 | 577 |
954 | 578 /** set image scale mode |
579 * | |
580 * @param data | |
581 * @param mode | |
582 */ | |
761
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583 setScaleMode : function (data, mode) { |
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584 var oldM = getScaleMode(data); |
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585 if (mode == null) { |
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586 mode = window.prompt("Image scale mode (screen, pixel, size)", oldM); |
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587 } |
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588 if (mode != null) { |
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589 setScaleMode(data, mode); |
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590 redisplay(data); |
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591 } |
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592 } |
763
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593 // end of actions |
605 | 594 }; |
604 | 595 |
954 | 596 /** return parameters from page url |
597 * | |
598 */ | |
607 | 599 var parseQueryParams = function() { |
636 | 600 return parseQueryString(window.location.search.slice(1)); |
601 }; | |
655 | 602 |
984 | 603 /** |
604 * returns parameters from embedded img-element | |
954 | 605 * |
606 */ | |
607 | 607 var parseImgParams = function($elem) { |
613
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608 var src = $elem.find('img').first().attr('src'); |
710 | 609 if (!src) return null; |
607 | 610 var pos = src.indexOf('?'); |
611 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
612 var scalerUrl = src.substring(0, pos); | |
627 | 613 var params = parseQueryString(query); |
614 params.scalerBaseUrl = scalerUrl; | |
615 return params; | |
636 | 616 }; |
607 | 617 |
984 | 618 /** |
619 * parses query parameter string into parameter object | |
954 | 620 * |
621 */ | |
607 | 622 var parseQueryString = function(query) { |
701 | 623 var params = {}; |
624 if (query == null) return params; | |
607 | 625 var pairs = query.split("&"); |
636 | 626 //var keys = []; |
607 | 627 for (var i = 0; i < pairs.length; i++) { |
628 var pair = pairs[i].split("="); | |
629 if (pair.length === 2) { | |
627 | 630 params[pair[0]] = pair[1]; |
636 | 631 //keys.push(pair[0]); |
634 | 632 } |
636 | 633 } |
627 | 634 return params; |
636 | 635 }; |
668 | 636 |
984 | 637 /** |
638 * return a query string from key names from a parameter hash | |
954 | 639 * (ignores keys if the same value is in defaults) |
640 * | |
641 */ | |
643 | 642 var getParamString = function (settings, keys, defaults) { |
615 | 643 var paramString = ''; |
650 | 644 var nx = false; |
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645 for (var i = 0; i < keys.length; ++i) { |
615 | 646 var key = keys[i]; |
663 | 647 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 648 // first param gets no '&' |
650 | 649 if (nx) { |
650 paramString += '&'; | |
651 } else { | |
652 nx = true; | |
653 } | |
615 | 654 // add parm=val |
655 paramString += key + '=' + settings[key]; | |
643 | 656 } |
615 | 657 } |
658 return paramString; | |
631 | 659 }; |
660 | |
984 | 661 /** |
662 * returns URL and query string for Scaler | |
954 | 663 */ |
636 | 664 var getScalerUrl = function (data) { |
741 | 665 packParams(data); |
653 | 666 var settings = data.settings; |
652 | 667 if (settings.scalerBaseUrl == null) { |
668 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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|
669 } |
636 | 670 var keys = settings.scalerParamNames; |
643 | 671 var queryString = getParamString(settings, keys, defaults); |
636 | 672 var url = settings.scalerBaseUrl + '?' + queryString; |
673 return url; | |
674 }; | |
675 | |
954 | 676 /** returns URL for preview background image |
677 * | |
678 */ | |
679 var getPreviewImgUrl = function (data, moreParams) { | |
741 | 680 var settings = data.settings; |
795 | 681 var bgOptions = { |
954 | 682 dw : settings.previewImgWidth, |
683 dh : settings.previewImgHeight | |
741 | 684 }; |
795 | 685 var bgSettings = $.extend({}, settings, bgOptions); |
931 | 686 // filter scaler flags (use only hmir and vmir) |
795 | 687 if (bgSettings.mo != null) { |
688 var mo = ''; | |
689 if (data.scalerFlags.hmir != null) { | |
690 mo += 'hmir,'; | |
767 | 691 } |
795 | 692 if (data.scalerFlags.vmir != null) { |
693 mo += 'vmir'; | |
694 } | |
695 bgSettings.mo = mo; | |
743 | 696 } |
954 | 697 var params = getParamString(bgSettings, settings.previewImgParamNames, defaults); |
743 | 698 var url = settings.scalerBaseUrl + '?' + params; |
741 | 699 return url; |
700 }; | |
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|
701 |
1011 | 702 /** |
703 * returns URL and query string for current digilib. | |
704 * if digilibPage != null returns URL to page in digilib installation with digilib parameters, | |
705 * otherwise using current URL and parameters. | |
954 | 706 * |
707 */ | |
1011 | 708 var getDigilibUrl = function (data, digilibPage) { |
643 | 709 packParams(data); |
636 | 710 var settings = data.settings; |
1011 | 711 var paramList = settings.digilibParamNames; |
712 if (digilibPage != null) { | |
713 var baseUrl = data.settings.digilibBaseUrl + digilibPage; | |
714 } else { | |
715 paramList = settings.additionalParamNames.concat(settings.digilibParamNames); | |
716 if (settings.suppressParamNames != null) { | |
717 // eliminate suppressed parameters from list | |
718 paramList = $.map(paramList, function(e, idx) { | |
719 if ($.inArray(e, settings.suppressParamNames) >= 0) { | |
720 return null; | |
721 } else { | |
722 return e; | |
723 } | |
724 }); | |
725 } | |
726 // take url from current location | |
727 var baseUrl = window.location.href; | |
728 var pos = baseUrl.indexOf('?'); | |
729 if (pos > -1) { | |
730 baseUrl = baseUrl.substring(0, pos); | |
731 } | |
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732 } |
1007 | 733 var queryString = getParamString(settings, paramList, defaults); |
1011 | 734 return baseUrl + '?' + queryString; |
636 | 735 }; |
736 | |
954 | 737 /** loads image information from digilib server via HTTP |
738 * | |
739 */ | |
797 | 740 var loadImageInfo = function (data) { |
754
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741 var settings = data.settings; |
917 | 742 // bind default function (only once) |
743 $(data).off('imageInfo', handleImageInfo); | |
744 $(data).on('imageInfo', handleImageInfo); | |
745 var url = settings.digilibBaseUrl + '/ImgInfo-json.jsp'; | |
754
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746 url += '?' + getParamString(settings, ['fn', 'pn'], defaults); |
767 | 747 // TODO: better error handling |
785 | 748 $.getJSON(url, function (json) { |
754
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749 console.debug("got json data=", json); |
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750 data.imgInfo = json; |
797 | 751 // send event |
752 $(data).trigger('imageInfo', [json]); | |
754
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753 }); |
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754 }; |
775 | 755 |
954 | 756 /** processes some parameters into objects and stuff |
757 * | |
758 */ | |
631 | 759 var unpackParams = function (data) { |
760 var settings = data.settings; | |
636 | 761 // zoom area |
631 | 762 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 763 data.zoomArea = zoomArea; |
650 | 764 // mo (Scaler flags) |
765 var flags = {}; | |
766 if (settings.mo) { | |
767 var pa = settings.mo.split(","); | |
768 for (var i = 0; i < pa.length ; i++) { | |
769 flags[pa[i]] = pa[i]; | |
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770 } |
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771 } |
650 | 772 data.scalerFlags = flags; |
763
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773 data.scaleMode = getScaleMode(data); |
723 | 774 retrieveOptions(data); |
655 | 775 }; |
776 | |
954 | 777 /** put area into parameters |
778 * | |
779 */ | |
822 | 780 var packArea = function (settings, area) { |
781 if (!area) return; | |
782 // zoom area | |
783 settings.wx = cropFloat(area.x); | |
784 settings.wy = cropFloat(area.y); | |
785 settings.ww = cropFloat(area.width); | |
786 settings.wh = cropFloat(area.height); | |
787 }; | |
788 | |
954 | 789 /** pack scaler flags into parameters |
790 * | |
791 */ | |
822 | 792 var packScalerFlags = function (settings, flags) { |
793 if (!flags) return; | |
794 var mo = ''; | |
795 for (var f in flags) { | |
796 if (mo) { | |
797 mo += ','; | |
798 } | |
799 mo += f; | |
800 } | |
801 settings.mo = mo; | |
802 }; | |
803 | |
954 | 804 /** put objects back into parameters |
805 * | |
806 */ | |
631 | 807 var packParams = function (data) { |
808 var settings = data.settings; | |
822 | 809 packArea(settings, data.zoomArea); |
810 packScalerFlags(settings, data.scalerFlags); | |
811 // store user interface options in cookie | |
723 | 812 storeOptions(data); |
992
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813 // trigger pack handlers |
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814 $(data).trigger('pack'); |
709 | 815 }; |
688 | 816 |
954 | 817 /** store digilib options in a cookie |
818 * | |
819 */ | |
723 | 820 var storeOptions = function (data) { |
709 | 821 var settings = data.settings; |
822 if (data.dlOpts) { | |
823 // save digilib settings in options | |
824 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
825 data.dlOpts.buttons = settings.visibleButtonSets; | |
826 var clop = ''; | |
827 for (var o in data.dlOpts) { | |
828 if (clop) { | |
829 clop += '&'; | |
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830 } |
709 | 831 clop += o + '=' + data.dlOpts[o]; |
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832 } |
785 | 833 if ($.cookie) { |
709 | 834 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; |
835 console.debug("set cookie=", ck, " value=", clop); | |
785 | 836 $.cookie(ck, clop); |
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837 } |
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838 } |
785 | 839 if (settings.interactionMode !== 'fullscreen' && $.cookie) { |
727 | 840 // store normal parameters in cookie for embedded mode |
841 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
842 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
843 console.debug("set cookie=", ck, " value=", qs); | |
785 | 844 $.cookie(ck, qs); |
727 | 845 } |
631 | 846 }; |
655 | 847 |
983 | 848 /** retrieve digilib options from a cookie |
954 | 849 * |
850 */ | |
723 | 851 var retrieveOptions = function (data) { |
709 | 852 // clop (digilib options) |
853 var opts = {}; | |
854 var settings = data.settings; | |
785 | 855 if ($.cookie) { |
709 | 856 // read from cookie |
857 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
785 | 858 var cp = $.cookie(ck); |
709 | 859 console.debug("get cookie=", ck, " value=", cp); |
860 // in query string format | |
861 opts = parseQueryString(cp); | |
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862 } |
709 | 863 data.dlOpts = opts; |
864 // birdview option | |
865 if (opts.birdview != null) { | |
866 settings.isBirdDivVisible = opts.birdview === '1'; | |
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867 } |
709 | 868 // visible button sets |
869 if (opts.buttons != null) { | |
870 settings.visibleButtonSets = opts.buttons; | |
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871 } |
711 | 872 }; |
709 | 873 |
949 | 874 /** (re)load the image with the current settings. |
875 * | |
876 */ | |
644
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877 var redisplay = function (data) { |
1031 | 878 var settings = data.settings; |
879 if (settings.autoBirdDiv) { | |
880 settings.isBirdDivVisible = !isFullArea(data.zoomArea); | |
881 } | |
636 | 882 if (settings.interactionMode === 'fullscreen') { |
883 // update location.href (browser URL) in fullscreen mode | |
644
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884 var url = getDigilibUrl(data); |
636 | 885 var history = window.history; |
942 | 886 if (data.hasAsyncReload) { |
798
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887 console.debug("faking reload to "+url); |
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888 // change url without reloading (stateObj, title, url) |
890
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889 // TODO: we really need to push the state in stateObj and listen to pop-events |
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890 try { |
1015 | 891 history.replaceState({}, '', url); |
892 // show busy cursor | |
893 $('body').css('cursor', 'progress'); | |
894 data.$scaler.css('cursor', 'progress'); | |
895 // change img src | |
896 var $img = data.$img; | |
897 var imgurl = getScalerUrl(data); | |
898 $img.attr('src', imgurl); | |
899 // trigger load event if image is cached. Doesn't work with Firefox!! | |
900 if (data.hasCachedComplete && $img.prop('complete')) { | |
901 console.debug("cached img.load"); | |
902 $img.trigger('load'); | |
903 } | |
904 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { | |
905 // we need image info, do we have it? | |
906 if (data.imgInfo == null) { | |
907 loadImageInfo(data); | |
908 } | |
909 } | |
910 // update if we have a preview | |
911 if (data.hasPreviewBg) { | |
912 $(data).trigger('update'); | |
913 } | |
914 //FIXME: highlightButtons(data); | |
915 // send event | |
916 $(data).trigger('redisplay'); | |
913
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917 } catch (e) { |
1015 | 918 console.error("replaceState("+url+") didn't work: "+e); |
913
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919 // reload window |
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920 window.location = url; |
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921 } |
798
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922 } else { |
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923 // reload window |
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924 window.location = url; |
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925 } |
636 | 926 } else { |
927 // embedded mode -- just change img src | |
1015 | 928 // show busy cursor |
929 $('body').css('cursor', 'progress'); | |
930 data.$scaler.css('cursor', 'progress'); | |
931 var $img = data.$img; | |
636 | 932 var url = getScalerUrl(data); |
949 | 933 $img.attr('src', url); |
1015 | 934 // trigger load event if image is cached |
935 if ($img.prop('complete')) $img.trigger('load'); | |
936 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { | |
937 // we need image info, do we have it? | |
938 if (data.imgInfo == null) { | |
939 loadImageInfo(data); | |
940 } | |
941 } | |
949 | 942 //FIXME: highlightButtons(data); |
795 | 943 // send event |
944 $(data).trigger('redisplay'); | |
913
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945 } |
622 | 946 }; |
947 | |
949 | 948 /** update display (overlays etc.) |
949 * (just triggers "update" event) | |
950 */ | |
767 | 951 var updateDisplay = function (data) { |
947 | 952 // send event |
953 $(data).trigger('update'); | |
954 }; | |
955 | |
949 | 956 /** handle "update" display event. |
991
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957 * updates image transform, etc. |
949 | 958 */ |
947 | 959 var handleUpdate = function (evt) { |
1015 | 960 var data = this; |
767 | 961 updateImgTrafo(data); |
962 setupZoomDrag(data); | |
963 }; | |
974 | 964 |
984 | 965 /** |
966 * returns maximum size for scaler img in fullscreen mode. | |
949 | 967 */ |
778 | 968 var getFullscreenImgSize = function (data) { |
989
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969 //var mode = data.settings.interactionMode; |
662 | 970 var $win = $(window); |
971 var winH = $win.height(); | |
779 | 972 var winW = $win.width(); |
989
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973 // add all current insets |
991
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974 // accounting for left/right border, body margins and additional requirements |
989
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975 var insets = { 'x' : 0, 'y' : 0}; |
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976 for (var n in data.currentInsets) { |
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977 insets.x += data.currentInsets[n].x; |
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978 insets.y += data.currentInsets[n].y; |
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979 }; |
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980 var imgW = winW - insets.x; |
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981 var imgH = winH - insets.y; |
998 | 982 console.debug('getFullscreenImgSize - screen w/h:', winW, winH, 'window.width', $win.width(), 'img w/h:', imgW, imgH); |
886
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983 return geom.size(imgW, imgH); |
662 | 984 }; |
985 | |
984 | 986 /** |
987 * returns a rectangle.with the fullscreen dimensions | |
974 | 988 */ |
989 var getFullscreenRect = function (data) { | |
990 return geom.rectangle(getFullscreenImgSize(data)); | |
991 }; | |
992 | |
984 | 993 /** |
994 * creates HTML structure for digilib in elem | |
949 | 995 */ |
627 | 996 var setupScalerDiv = function (data) { |
997 var settings = data.settings; | |
647 | 998 var $elem = data.$elem; |
996 | 999 var cssPrefix = settings.cssPrefix; |
1000 $elem.addClass(cssPrefix+'digilib'); | |
728 | 1001 var $img; |
1002 var scalerUrl; | |
608 | 1003 if (settings.interactionMode === 'fullscreen') { |
728 | 1004 // fullscreen |
995 | 1005 $elem.addClass(cssPrefix+'fullscreen'); |
778 | 1006 var imgSize = getFullscreenImgSize(data); |
1012 | 1007 data.maxImgSize = imgSize; |
650 | 1008 // fitwidth/height omits destination height/width |
728 | 1009 if (data.dlOpts.fitheight == null) { |
650 | 1010 settings.dw = imgSize.width; |
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1011 } |
728 | 1012 if (data.dlOpts.fitwidth == null) { |
650 | 1013 settings.dh = imgSize.height; |
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1014 } |
686 | 1015 scalerUrl = getScalerUrl(data); |
728 | 1016 $img = $('<img/>'); |
609 | 1017 } else { |
728 | 1018 // embedded mode -- try to keep img tag |
1015 | 1019 data.maxImgSize = geom.rectangle($elem).getSize(); |
995 | 1020 $elem.addClass(cssPrefix+'embedded'); |
728 | 1021 scalerUrl = getScalerUrl(data); |
623 | 1022 $img = $elem.find('img'); |
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1023 if ($img.length > 0) { |
870
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1024 var oldUrl = $img.attr('src'); |
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1025 // keep img attributes from html |
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1026 var title = $img.attr('title'); |
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1027 var alt = $img.attr('alt'); |
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1028 if (oldUrl === scalerUrl) { |
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1029 console.debug("img detach:", $img); |
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1030 $img.detach(); |
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1031 } else { |
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1032 $img = $('<img/>'); |
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1033 $img.attr("title", title); |
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1034 $img.attr("alt", alt); |
728 | 1035 } |
613
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1036 } else { |
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1037 $img = $('<img/>'); |
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1038 } |
608 | 1039 } |
822 | 1040 // create new inner html, keeping buttons and content marked with "keep" class |
996 | 1041 $elem.contents(':not(.'+cssPrefix+'keep)').remove(); |
995 | 1042 var $scaler = $('<div class="'+cssPrefix+'scaler"/>'); |
779 | 1043 // scaler should be the first child element? |
1044 $elem.prepend($scaler); | |
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1045 $scaler.append($img); |
995 | 1046 $img.addClass(cssPrefix+'pic'); |
649 | 1047 data.$scaler = $scaler; |
636 | 1048 data.$img = $img; |
947 | 1049 // set busy cursor |
1050 $('body').css('cursor','progress'); | |
1015 | 1051 data.$scaler.css('cursor', 'progress'); |
942 | 1052 // set up image load handler before setting the src attribute (IE bug) |
687 | 1053 $img.load(scalerImgLoadedHandler(data)); |
767 | 1054 $img.error(function () {console.error("error loading scaler image");}); |
687 | 1055 $img.attr('src', scalerUrl); |
608 | 1056 }; |
615 | 1057 |
1052 | 1058 /** shows some div (toggle visibility if show is null) |
949 | 1059 * |
1060 */ | |
635 | 1061 var showDiv = function (isVisible, $div, show) { |
645 | 1062 if (show == null) { |
635 | 1063 // toggle visibility |
1064 isVisible = !isVisible; | |
1065 } else { | |
1066 // set visibility | |
1067 isVisible = show; | |
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1068 } |
635 | 1069 if (isVisible) { |
1070 $div.fadeIn(); | |
1071 } else { | |
1072 $div.fadeOut(); | |
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1073 } |
635 | 1074 return isVisible; |
634 | 1075 }; |
616 | 1076 |
949 | 1077 /** Create Transform from zoom area and image size and parameters. |
1078 * Returns Transform between normalized coordinates and image pixel coordinates. | |
1079 */ | |
772
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1080 var getImgTrafo = function ($img, area, rot, hmir, vmir, mode, data) { |
658
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1081 var picrect = geom.rectangle($img); |
949 | 1082 // handle pixel-by-pixel and original-size modes |
763
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1083 if (mode != null) { |
772
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1084 var imgInfo = data.imgInfo; |
763
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1085 if (mode === 'pixel') { |
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1086 // scaler mo=clip - image area size does not come from ww, wh |
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1087 if (imgInfo != null) { |
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1088 area.width = picrect.width / imgInfo.width; |
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|
1089 area.height = picrect.height / imgInfo.height; |
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|
1090 } else { |
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|
1091 console.error("No image info for pixel mode!"); |
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|
1092 } |
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|
1093 } |
772
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original size mode works with zoom area now. needs error handling.
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|
1094 if (mode === 'size') { |
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|
1095 // scaler mo=osize - image area size does not come from ww, wh |
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1096 if (imgInfo != null) { |
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|
1097 var ddpi = parseFloat(data.settings.ddpi); |
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|
1098 area.width = (picrect.width / ddpi) / (imgInfo.width / imgInfo.dpi_x); |
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1099 area.height = (picrect.height / ddpi) / (imgInfo.height / imgInfo.dpi_y); |
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|
1100 } else { |
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|
1101 console.error("No image info for original size mode!"); |
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|
1102 } |
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|
1103 } |
763
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|
1104 } |
658
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|
1105 var trafo = geom.transform(); |
675 | 1106 // move zoom area offset to center |
658
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|
1107 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
675 | 1108 // scale zoom area size to [1,1] |
658
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1109 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
675 | 1110 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
1111 if (rot || hmir || vmir) { | |
1112 // move [0.5,0.5] to center | |
1113 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
1114 if (hmir) { | |
1115 // mirror about center | |
1116 trafo.concat(trafo.getMirror('y')); | |
713
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|
1117 } |
675 | 1118 if (vmir) { |
1119 // mirror about center | |
1120 trafo.concat(trafo.getMirror('x')); | |
713
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|
1121 } |
675 | 1122 if (rot) { |
1123 // rotate around center | |
1124 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
713
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|
1125 } |
675 | 1126 // move back |
1127 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
713
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|
1128 } |
664
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work on getting transformation to work with rotation (currently still doesn't)
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663
diff
changeset
|
1129 // scale to screen position and size |
658
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|
1130 trafo.concat(trafo.getScale(picrect)); |
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1131 trafo.concat(trafo.getTranslation(picrect)); |
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|
1132 return trafo; |
655 | 1133 }; |
678
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first step at dragging birdview zoom indicator around
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|
1134 |
949 | 1135 /** update current scaler image transform |
1136 */ | |
767 | 1137 var updateImgTrafo = function (data) { |
1138 var $img = data.$img; | |
895 | 1139 if ($img == null) |
1140 return; | |
1141 var imgLoaded = $.browser.msie | |
949 | 1142 ? $img.prop('width') > 0 |
1143 : $img.prop('complete'); | |
950
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|
1144 if (imgLoaded || data.hasPreviewBg) { |
1015 | 1145 // create Transform from current zoomArea and image size |
1146 data.imgTrafo = getImgTrafo($img, data.zoomArea, data.settings.rot, | |
1147 data.scalerFlags.hmir, data.scalerFlags.vmir, | |
1148 data.scaleMode, data); | |
1149 console.debug("updateImgTrafo: ", data.imgTrafo); | |
1150 } | |
767 | 1151 }; |
775 | 1152 |
949 | 1153 /** return handler for load event of scaler img |
1154 * (necessary for closure with data object) | |
1155 */ | |
767 | 1156 var scalerImgLoadedHandler = function (data) { |
1157 return function () { | |
1158 var $img = $(this); | |
1159 console.debug("scaler img loaded=",$img); | |
1160 var $scaler = data.$scaler; | |
760
f0be4432f515
primitive plugin extension mechanism - unsure how useful this is
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diff
changeset
|
1161 var imgRect = geom.rectangle($img); |
931 | 1162 data.imgRect = imgRect; |
1015 | 1163 // reset busy cursor |
1164 $('body').css('cursor', 'auto'); | |
1165 $scaler.css('cursor', 'auto'); | |
957 | 1166 // adjust scaler div size (beware: setting position makes the element relative) |
1167 imgRect.getSize().adjustDiv($scaler); | |
715 | 1168 // show image in case it was hidden (for example in zoomDrag) |
733 | 1169 $img.css('visibility', 'visible'); |
1019
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fix flicker in Firefox by leaving scaler background visible.
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1018
diff
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|
1170 $scaler.css({'opacity' : '1'}); |
950
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|
1171 data.hasPreviewBg = false; |
767 | 1172 // update display (render marks, etc.) |
1173 updateDisplay(data); | |
658
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|
1174 }; |
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|
1175 }; |
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|
1176 |
949 | 1177 /** handle imageInfo loaded event |
1178 * | |
1179 */ | |
797 | 1180 var handleImageInfo = function (evt, json) { |
1015 | 1181 console.debug("handleImageInfo:", json); |
797 | 1182 var data = this; |
1183 updateDisplay(data); | |
1184 }; | |
813 | 1185 |
949 | 1186 /** handle changeZoomArea event |
1187 * | |
1188 */ | |
942 | 1189 var handleChangeZoomArea = function (evt, newZa) { |
1015 | 1190 console.debug("handleChangeZoomArea:", newZa); |
1191 var data = this; | |
1192 // hide all overlays (marks/regions) | |
996 | 1193 data.$elem.find('.'+data.settings.cssPrefix+'overlay').hide(); |
1015 | 1194 setPreviewBg(data, newZa); |
942 | 1195 }; |
1015 | 1196 |
949 | 1197 /** zoom by the given factor. |
1198 * | |
1199 */ | |
643 | 1200 var zoomBy = function(data, factor) { |
1201 var area = data.zoomArea; | |
1202 var newarea = area.copy(); | |
1203 // scale | |
1204 newarea.width /= factor; | |
1205 newarea.height /= factor; | |
1206 // and recenter | |
1207 newarea.x -= 0.5 * (newarea.width - area.width); | |
1208 newarea.y -= 0.5 * (newarea.height - area.height); | |
735
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improved some embedded buttons; fixed reset function
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diff
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|
1209 newarea = FULL_AREA.fit(newarea); |
950
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diff
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|
1210 setZoomArea(data, newarea); |
972 | 1211 // reset modes |
1212 setScaleMode(data, 'screen'); | |
1213 setFitMode(data, 'both'); | |
644
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reload doesn't take list of changed parameters any more
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diff
changeset
|
1214 redisplay(data); |
643 | 1215 }; |
1216 | |
949 | 1217 /** zoom to the area around two clicked points. |
1218 * | |
1219 */ | |
654 | 1220 var zoomArea = function(data) { |
1221 $elem = data.$elem; | |
1222 $scaler = data.$scaler; | |
1223 var pt1, pt2; | |
996 | 1224 var $zoomDiv = $('<div class="'+data.settings.cssPrefix+'zoomrect" style="display:none"/>'); |
654 | 1225 $elem.append($zoomDiv); |
775 | 1226 // $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 1227 var picRect = geom.rectangle($scaler); |
1228 // FIX ME: is there a way to query the border width from CSS info? | |
1229 // rect.x -= 2; // account for overlay borders | |
1230 // rect.y -= 2; | |
1231 | |
1232 var zoomStart = function (evt) { | |
1233 pt1 = geom.position(evt); | |
1234 // setup and show zoom div | |
738 | 1235 pt1.adjustDiv($zoomDiv); |
668 | 1236 $zoomDiv.width(0).height(0); |
654 | 1237 $zoomDiv.show(); |
1238 // register events | |
917 | 1239 $elem.on("mousemove.dlZoomArea", zoomMove); |
1240 $elem.on("mouseup.dlZoomArea", zoomEnd); | |
654 | 1241 return false; |
1242 }; | |
668 | 1243 |
741 | 1244 // mouse move handler |
1245 var zoomMove = function (evt) { | |
1246 pt2 = geom.position(evt); | |
1247 var rect = geom.rectangle(pt1, pt2); | |
1248 rect.clipTo(picRect); | |
1249 // update zoom div | |
1250 rect.adjustDiv($zoomDiv); | |
1251 return false; | |
1252 }; | |
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ad483c008159
move birdview zoom indicator along with zoom drag
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diff
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|
1253 |
654 | 1254 // mouseup handler: end moving |
1255 var zoomEnd = function (evt) { | |
1256 pt2 = geom.position(evt); | |
1257 // assume a click and continue if the area is too small | |
1258 var clickRect = geom.rectangle(pt1, pt2); | |
710 | 1259 if (clickRect.getArea() <= 5) return false; |
654 | 1260 // hide zoom div |
1261 $zoomDiv.remove(); | |
1262 // unregister events | |
917 | 1263 $elem.off("mousemove.dlZoomArea", zoomMove); |
1264 $elem.off("mouseup.dlZoomArea", zoomEnd); | |
654 | 1265 // clip and transform |
1266 clickRect.clipTo(picRect); | |
1267 var area = data.imgTrafo.invtransform(clickRect); | |
951
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preview for ZoomArea. shows distortions when changing aspect ratio.
robcast
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diff
changeset
|
1268 setZoomArea(data, area); |
972 | 1269 // reset modes |
1270 setFitMode(data, 'both'); | |
1271 setScaleMode(data, 'screen'); | |
654 | 1272 redisplay(data); |
1273 return false; | |
1274 }; | |
668 | 1275 |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1276 // clear old handler (also ZoomDrag) |
917 | 1277 $scaler.off('.dlZoomArea'); |
1278 $scaler.off(".dlZoomDrag"); | |
1279 $elem.off('.dlZoomArea'); | |
654 | 1280 // bind start zoom handler |
738 | 1281 $scaler.one('mousedown.dlZoomArea', zoomStart); |
654 | 1282 }; |
647 | 1283 |
950
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|
1284 /** set preview background. |
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diff
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|
1285 * optional newZoomArea scales and moves background to preview. |
949 | 1286 */ |
950
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diff
changeset
|
1287 var setPreviewBg = function(data, newZoomArea) { |
746
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1288 var $scaler = data.$scaler; |
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|
1289 var $img = data.$img; |
950
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diff
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|
1290 var imgTrafo = data.imgTrafo; |
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diff
changeset
|
1291 var scalerPos = geom.position($scaler); |
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much nicer implementation of preview for scrolling and zooming.
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diff
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|
1292 var bgRect = null; |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
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|
1293 // hide the scaler img, show background of div instead |
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move zoom-drag background along with birdview indicator
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changeset
|
1294 $img.css('visibility', 'hidden'); |
918
f7869186ccb2
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917
diff
changeset
|
1295 // use current image as first background |
746
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move zoom-drag background along with birdview indicator
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diff
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|
1296 var scalerCss = { |
1015 | 1297 'background-image' : 'url(' + $img.attr('src') + ')', |
950
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much nicer implementation of preview for scrolling and zooming.
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diff
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|
1298 'background-repeat' : 'no-repeat', |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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diff
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|
1299 'background-position' : '0px 0px', |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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diff
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|
1300 'opacity' : '0.7', |
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|
1301 'cursor' : 'move' |
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much nicer implementation of preview for scrolling and zooming.
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|
1302 }; |
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|
1303 if (newZoomArea != null) { |
1015 | 1304 // check if aspect ratio has changed |
1305 if (Math.abs(newZoomArea.getAspect() - data.zoomArea.getAspect()) > 0.001 ) { | |
1306 var newRect = data.imgTrafo.transform(newZoomArea); | |
1307 var newAspect = newRect.getAspect(); | |
1308 var newSize = data.maxImgSize.fitAspect(newAspect); | |
1309 // set scaler to presumed new size | |
1310 newSize.adjustDiv($scaler); | |
1311 console.debug("adjusting aspect ratio for preview", data.maxImgSize, newSize); | |
1312 } | |
1313 // get transform for new zoomArea (use 'screen' instead of data.scaleMode) | |
1314 imgTrafo = getImgTrafo($scaler, newZoomArea, data.settings.rot, | |
1315 data.scalerFlags.hmir, data.scalerFlags.vmir, | |
1316 'screen', data); | |
1317 // for new background coordinates transform old zoomArea with new Transform | |
1318 bgRect = imgTrafo.transform(data.zoomArea); | |
1319 // correct offset because background is relative | |
1320 bgRect.addPosition(scalerPos.neg()); | |
1321 // position background | |
1322 scalerCss['background-position'] = Math.round(bgRect.x) + 'px '+ Math.round(bgRect.y) + 'px'; | |
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|
1323 } |
746
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|
1324 if (data.hasBgSize) { |
1015 | 1325 // scale background using CSS3-background-size |
1326 if (bgRect != null && (bgRect.height < data.settings.maxBgSize && bgRect.width < data.settings.maxBgSize)) { | |
1327 scalerCss[data.bgSizeName] = Math.round(bgRect.width) + 'px ' + Math.round(bgRect.height) + 'px'; | |
1328 } else { | |
1329 scalerCss[data.bgSizeName] = 'auto'; | |
1330 } | |
950
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diff
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|
1331 // additional full-size background using CSS3 |
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|
1332 fullRect = imgTrafo.transform(FULL_AREA); |
746
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diff
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|
1333 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) { |
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diff
changeset
|
1334 // correct offset because background is relative |
751
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
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748
diff
changeset
|
1335 fullRect.addPosition(scalerPos.neg()); |
954 | 1336 var url = getPreviewImgUrl(data); |
950
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diff
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|
1337 // add second background url, size and position |
918
f7869186ccb2
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diff
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|
1338 scalerCss['background-image'] += ', url(' + url + ')'; |
950
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|
1339 scalerCss[data.bgSizeName] += ', ' + Math.round(fullRect.width) + 'px ' + Math.round(fullRect.height) + 'px'; |
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diff
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|
1340 scalerCss['background-position'] += ', ' + Math.round(fullRect.x) + 'px '+ Math.round(fullRect.y) + 'px'; |
746
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|
1341 } |
918
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|
1342 } |
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|
1343 $scaler.css(scalerCss); |
942 | 1344 data.hasPreviewBg = true; |
929
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
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928
diff
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|
1345 }; |
1015 | 1346 |
949 | 1347 /** setup handlers for dragging the zoomed image. |
1348 * | |
1349 */ | |
705 | 1350 var setupZoomDrag = function(data) { |
942 | 1351 var startPos, delta; |
733 | 1352 var $document = $(document); |
795 | 1353 var $data = $(data); |
705 | 1354 var $elem = data.$elem; |
1355 var $scaler = data.$scaler; | |
1356 var $img = data.$img; | |
710 | 1357 |
733 | 1358 // drag the image and load a new detail on mouse up |
705 | 1359 var dragStart = function (evt) { |
1015 | 1360 // cancel if not left-click |
1361 if (evt.which != 1) return; | |
813 | 1362 console.debug("dragstart at=", evt); |
737
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
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diff
changeset
|
1363 // don't start dragging if not zoomed |
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|
1364 if (isFullArea(data.zoomArea)) return false; |
813 | 1365 $elem.find(".overlay").hide(); // hide all overlays (marks/regions) |
733 | 1366 startPos = geom.position(evt); |
741 | 1367 delta = null; |
746
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|
1368 // set low res background immediately on mousedown |
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1369 setPreviewBg(data); |
917 | 1370 $document.on("mousemove.dlZoomDrag", dragMove); |
1371 $document.on("mouseup.dlZoomDrag", dragEnd); | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1372 return false; |
705 | 1373 }; |
745
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1374 |
733 | 1375 // mousemove handler: drag zoomed image |
705 | 1376 var dragMove = function (evt) { |
1377 var pos = geom.position(evt); | |
741 | 1378 delta = startPos.delta(pos); |
807
1b1728926534
geometry: overlapsRect() plus some comment clarifications
hertzhaft
parents:
799
diff
changeset
|
1379 // send message event with current zoom position |
745
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1380 var za = geom.rectangle($img); |
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1381 za.addPosition(delta.neg()); |
947 | 1382 // transform back |
1383 var newArea = data.imgTrafo.invtransform(za); | |
1384 $data.trigger('changeZoomArea', newArea); | |
705 | 1385 return false; |
1386 }; | |
710 | 1387 |
733 | 1388 // mouseup handler: reload zoomed image in new position |
705 | 1389 var dragEnd = function (evt) { |
739 | 1390 $scaler.css('cursor', 'auto'); |
917 | 1391 $document.off("mousemove.dlZoomDrag", dragMove); |
1392 $document.off("mouseup.dlZoomDrag", dragEnd); | |
733 | 1393 if (delta == null || delta.distance() < 2) { |
1394 // no movement | |
1395 $img.css('visibility', 'visible'); | |
741 | 1396 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
944 | 1397 data.hasPreviewBg = false; |
993 | 1398 // unhide marks etc. |
1399 updateDisplay(data); | |
733 | 1400 return false; |
1401 } | |
1402 // get old zoom area (screen coordinates) | |
741 | 1403 var za = geom.rectangle($img); |
733 | 1404 // move |
741 | 1405 za.addPosition(delta.neg()); |
733 | 1406 // transform back |
1407 var newArea = data.imgTrafo.invtransform(za); | |
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1408 data.zoomArea = FULL_AREA.fit(newArea); |
708
120ace160386
img reload works for fullscreen, but somehow not precise
hertzhaft
parents:
707
diff
changeset
|
1409 redisplay(data); |
705 | 1410 return false; |
1411 }; | |
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1412 |
733 | 1413 // clear old handler |
917 | 1414 $document.off(".dlZoomDrag"); |
1415 $scaler.off(".dlZoomDrag"); | |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1416 if (! isFullArea(data.zoomArea)) { |
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1417 // set handler |
917 | 1418 $scaler.on("mousedown.dlZoomDrag", dragStart); |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1419 } |
705 | 1420 }; |
1421 | |
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1422 /** set the zoom area. |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1423 * also triggers "changeZoomArea" event. |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1424 */ |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1425 var setZoomArea = function(data, za) { |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1426 $(data).trigger('changeZoomArea', za); |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1427 data.oldZoomArea = data.zoomArea; |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1428 data.zoomArea = za; |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1429 }; |
1012 | 1430 |
949 | 1431 /** get image quality as a number (0..2). |
1432 * | |
1433 */ | |
703 | 1434 var getQuality = function (data) { |
1435 var flags = data.scalerFlags; | |
1436 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
1437 return parseInt(q[1], 10); | |
706 | 1438 }; |
703 | 1439 |
949 | 1440 /** set image quality as a number (0..2). |
1441 * | |
1442 */ | |
703 | 1443 var setQuality = function (data, qual) { |
1444 var flags = data.scalerFlags; | |
1445 // clear flags | |
1446 for (var i = 0; i < 3; ++i) { | |
1447 delete flags['q'+i]; | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1448 } |
703 | 1449 flags['q'+qual] = 'q'+qual; |
706 | 1450 }; |
710 | 1451 |
949 | 1452 /** get image scale mode (screen, pixel, size). |
1453 * | |
1454 */ | |
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1455 var getScaleMode = function (data) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1456 if (data.scalerFlags.clip != null) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1457 return 'pixel'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1458 } else if (data.scalerFlags.osize != null) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1459 return 'size'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1460 } |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1461 // mo=fit is default |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1462 return 'screen'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1463 }; |
775 | 1464 |
949 | 1465 /** set image scale mode (screen, pixel, size). |
1466 * | |
1467 */ | |
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1468 var setScaleMode = function (data, mode) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1469 delete data.scalerFlags.fit; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1470 delete data.scalerFlags.clip; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1471 delete data.scalerFlags.osize; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1472 if (mode === 'pixel') { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1473 data.scalerFlags.clip = 'clip'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1474 } else if (mode === 'size') { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1475 data.scalerFlags.osize = 'osize'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1476 } |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1477 // mo=fit is default |
972 | 1478 // save mode |
1479 data.scaleMode = mode; | |
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1480 }; |
775 | 1481 |
972 | 1482 /** get screen fit mode (width, height, both). |
1483 * | |
1484 */ | |
1485 var getFitMode = function (data) { | |
1015 | 1486 if (data.dlOpts.fitwidth != null) { |
1487 return "width"; | |
1488 } else if (data.dlOpts.fitheight != null) { | |
1489 return "height"; | |
1490 } | |
1491 // "both" is default | |
1492 return "both"; | |
972 | 1493 }; |
1012 | 1494 |
972 | 1495 /** |
1496 * set screen fit mode (width, height, both). | |
1497 */ | |
1498 var setFitMode = function (data, mode) { | |
984 | 1499 var settings = data.settings; |
1012 | 1500 var imgSize = data.maxImgSize; |
1015 | 1501 if (mode === 'width') { |
1502 data.dlOpts.fitwidth = 1; | |
1503 delete data.dlOpts.fitheight; | |
1504 if (imgSize != null) { | |
1505 // fitwidth omits destination height | |
1506 settings.dw = imgSize.width; | |
1507 settings.dh = null; | |
1508 } | |
1509 } else if (mode === 'height') { | |
1510 data.dlOpts.fitheight = 1; | |
1511 delete data.dlOpts.fitwidth; | |
984 | 1512 if (imgSize != null) { |
1513 // fitheight omits destination width | |
1514 settings.dw = null; | |
1515 settings.dh = imgSize.height; | |
1516 } | |
1015 | 1517 } else { |
1518 delete data.dlOpts.fitwidth; | |
1519 delete data.dlOpts.fitheight; | |
984 | 1520 if (imgSize != null) { |
1521 settings.dw = imgSize.width; | |
1522 settings.dh = imgSize.height; | |
1523 } | |
1015 | 1524 } |
972 | 1525 }; |
1015 | 1526 |
949 | 1527 /** sets a key to a value (relative values with +/- if relative=true). |
1528 * | |
1529 */ | |
650 | 1530 var setNumValue = function(settings, key, value) { |
716 | 1531 if (value == null) return null; |
955
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1532 if (isNumber(value)) { |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1533 settings[key] = value; |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1534 return value; |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1535 } |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1536 var sign = value[0]; |
650 | 1537 if (sign === '+' || sign === '-') { |
1538 if (settings[key] == null) { | |
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1539 // this isn't perfect but still... |
650 | 1540 settings[key] = 0; |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1541 } |
650 | 1542 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
1543 } else { | |
1544 settings[key] = value; | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1545 } |
650 | 1546 return settings[key]; |
1547 }; | |
655 | 1548 |
949 | 1549 /** return width of border on $elem. |
1550 * assumes equal border width on all sides. | |
1551 */ | |
775 | 1552 var getBorderWidth = function($elem) { |
1553 var border = $elem.outerWidth() - $elem.width(); | |
1554 return border/2; | |
1555 }; | |
1556 | |
949 | 1557 /** return if the current zoomarea can be moved further. |
1558 * | |
1559 */ | |
878 | 1560 var canMove = function(data, movx, movy) { |
1075
1e4f4964e9c2
CLOSED - # 25: scroll arrows have wrong direction with mirror and rot
robcast
parents:
1060
diff
changeset
|
1561 |
878 | 1562 var za = data.zoomArea; |
1563 if (isFullArea(za)) return false; | |
1075
1e4f4964e9c2
CLOSED - # 25: scroll arrows have wrong direction with mirror and rot
robcast
parents:
1060
diff
changeset
|
1564 var dx = movx; |
1e4f4964e9c2
CLOSED - # 25: scroll arrows have wrong direction with mirror and rot
robcast
parents:
1060
diff
changeset
|
1565 var dy = movy; |
1e4f4964e9c2
CLOSED - # 25: scroll arrows have wrong direction with mirror and rot
robcast
parents:
1060
diff
changeset
|
1566 // rotate and mirror change direction of cooordinate system |
1e4f4964e9c2
CLOSED - # 25: scroll arrows have wrong direction with mirror and rot
robcast
parents:
1060
diff
changeset
|
1567 var trafo = data.imgTrafo; |
1e4f4964e9c2
CLOSED - # 25: scroll arrows have wrong direction with mirror and rot
robcast
parents:
1060
diff
changeset
|
1568 if (trafo != null) { |
1e4f4964e9c2
CLOSED - # 25: scroll arrows have wrong direction with mirror and rot
robcast
parents:
1060
diff
changeset
|
1569 dx = (trafo.m00 > 0) ? movx : -movx; |
1e4f4964e9c2
CLOSED - # 25: scroll arrows have wrong direction with mirror and rot
robcast
parents:
1060
diff
changeset
|
1570 dy = (trafo.m11 > 0) ? movy : -movy; |
1e4f4964e9c2
CLOSED - # 25: scroll arrows have wrong direction with mirror and rot
robcast
parents:
1060
diff
changeset
|
1571 if (Math.abs(trafo.m00) < Math.abs(trafo.m01)) { |
1e4f4964e9c2
CLOSED - # 25: scroll arrows have wrong direction with mirror and rot
robcast
parents:
1060
diff
changeset
|
1572 dx = (trafo.m01 > 0) ? -movy : movy; |
1e4f4964e9c2
CLOSED - # 25: scroll arrows have wrong direction with mirror and rot
robcast
parents:
1060
diff
changeset
|
1573 dy = (trafo.m10 > 0) ? -movx : movx; |
1e4f4964e9c2
CLOSED - # 25: scroll arrows have wrong direction with mirror and rot
robcast
parents:
1060
diff
changeset
|
1574 } |
1e4f4964e9c2
CLOSED - # 25: scroll arrows have wrong direction with mirror and rot
robcast
parents:
1060
diff
changeset
|
1575 } |
878 | 1576 var x2 = za.x + za.width; |
1577 var y2 = za.y + za.height; | |
1075
1e4f4964e9c2
CLOSED - # 25: scroll arrows have wrong direction with mirror and rot
robcast
parents:
1060
diff
changeset
|
1578 return (((dx < 0) && (za.x > 0)) || ((dx > 0) && (x2 < 1.0)) || ((dy < 0) && (za.y > 0)) || ((dy > 0) && (y2 < 1.0))); |
878 | 1579 }; |
1580 | |
949 | 1581 /** return if area is maximal. |
1582 * | |
1583 */ | |
795 | 1584 var isFullArea = function (area) { |
659 | 1585 return (area.width === 1.0) && (area.height === 1.0); |
655 | 1586 }; |
1587 | |
955
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1588 /** return if the argument is a number. |
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1589 * from Douglas Crockford, A.10. |
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1590 * this is different from $.isNumeric(). |
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1591 */ |
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1592 var isNumber = function (value) { |
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1593 return typeof value === 'number' && isFinite(value); |
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1594 }; |
949 | 1595 /** return number with reduced precision. |
1596 * ("crop senseless precision") | |
1597 */ | |
631 | 1598 var cropFloat = function (x) { |
637 | 1599 return parseInt(10000 * x, 10) / 10000; |
631 | 1600 }; |
655 | 1601 |
949 | 1602 /** return string from number with reduced precision. |
1603 */ | |
813 | 1604 var cropFloatStr = function (x) { |
1605 return cropFloat(x).toString(); | |
1606 }; | |
1607 | |
1047
4f17420392a9
factor out calibration/scalemode to new dialogs plugin
hertzhaft
parents:
1031
diff
changeset
|
1608 /** center an item on the visible screen rect |
4f17420392a9
factor out calibration/scalemode to new dialogs plugin
hertzhaft
parents:
1031
diff
changeset
|
1609 */ |
1021 | 1610 var centerOnScreen = function (data, $div) { |
1058
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
hertzhaft
parents:
1053
diff
changeset
|
1611 if ($div == null) return; |
1021 | 1612 var r = geom.rectangle($div); |
1613 var s = fn.getFullscreenRect(data); | |
1614 r.setCenter(s.getCenter()); | |
1060 | 1615 r.getPosition().adjustDiv($div); |
1021 | 1616 }; |
1617 | |
1058
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
hertzhaft
parents:
1053
diff
changeset
|
1618 /** find an element in digilib $elem |
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
hertzhaft
parents:
1053
diff
changeset
|
1619 */ |
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
hertzhaft
parents:
1053
diff
changeset
|
1620 var find = function (data, selector) { |
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
hertzhaft
parents:
1053
diff
changeset
|
1621 var $obj = data.$elem.find(selector); |
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
hertzhaft
parents:
1053
diff
changeset
|
1622 return ($obj.length > 0) ? $obj : null; |
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
hertzhaft
parents:
1053
diff
changeset
|
1623 }; |
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
hertzhaft
parents:
1053
diff
changeset
|
1624 |
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
hertzhaft
parents:
1053
diff
changeset
|
1625 /** does element exist in digilib? |
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
hertzhaft
parents:
1053
diff
changeset
|
1626 */ |
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
hertzhaft
parents:
1053
diff
changeset
|
1627 var isOnScreen = function (data, selector) { |
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
hertzhaft
parents:
1053
diff
changeset
|
1628 var $obj = find(data, selector); |
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
hertzhaft
parents:
1053
diff
changeset
|
1629 return ($obj != null); |
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
hertzhaft
parents:
1053
diff
changeset
|
1630 }; |
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
hertzhaft
parents:
1053
diff
changeset
|
1631 |
1047
4f17420392a9
factor out calibration/scalemode to new dialogs plugin
hertzhaft
parents:
1031
diff
changeset
|
1632 /** fade out and remove an item |
4f17420392a9
factor out calibration/scalemode to new dialogs plugin
hertzhaft
parents:
1031
diff
changeset
|
1633 */ |
4f17420392a9
factor out calibration/scalemode to new dialogs plugin
hertzhaft
parents:
1031
diff
changeset
|
1634 var withdraw = function ($item) { |
4f17420392a9
factor out calibration/scalemode to new dialogs plugin
hertzhaft
parents:
1031
diff
changeset
|
1635 $item.fadeOut(function () { |
4f17420392a9
factor out calibration/scalemode to new dialogs plugin
hertzhaft
parents:
1031
diff
changeset
|
1636 $item.remove(); |
4f17420392a9
factor out calibration/scalemode to new dialogs plugin
hertzhaft
parents:
1031
diff
changeset
|
1637 }); |
4f17420392a9
factor out calibration/scalemode to new dialogs plugin
hertzhaft
parents:
1031
diff
changeset
|
1638 }; |
4f17420392a9
factor out calibration/scalemode to new dialogs plugin
hertzhaft
parents:
1031
diff
changeset
|
1639 |
4f17420392a9
factor out calibration/scalemode to new dialogs plugin
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1640 |
692 | 1641 // fallback for console.log calls |
1642 if (customConsole) { | |
1643 var logFunction = function(type) { | |
1644 return function(){ | |
996 | 1645 var $debug = $('#'+defaults.cssPrefix+'debug'); // debug div |
692 | 1646 if (!$debug) return; |
1647 var args = Array.prototype.slice.call(arguments); | |
1648 var argtext = args.join(' '); | |
1649 var $logDiv = $('<div/>'); | |
1650 $logDiv.addClass(type); | |
1651 $logDiv.text(argtext); | |
1652 $debug.append($logDiv); | |
1653 }; | |
1654 }; | |
1655 console.log = logFunction('_log'); | |
1656 console.debug = logFunction('_debug'); | |
1657 console.error = logFunction('_error'); | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
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|
1658 } |
692 | 1659 |
949 | 1660 /** functions to export to plugins. |
1661 */ | |
787 | 1662 fn = { |
791 | 1663 geometry : geom, |
787 | 1664 parseQueryString : parseQueryString, |
1665 getScalerUrl : getScalerUrl, | |
1666 getParamString : getParamString, | |
1667 getDigilibUrl : getDigilibUrl, | |
1668 unpackParams : unpackParams, | |
1669 packParams : packParams, | |
822 | 1670 packArea : packArea, |
1671 packScalerFlags : packScalerFlags, | |
795 | 1672 storeOptions : storeOptions, |
787 | 1673 redisplay : redisplay, |
1674 updateDisplay : updateDisplay, | |
791 | 1675 showDiv : showDiv, |
983 | 1676 setZoomArea : setZoomArea, |
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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1677 setPreviewBg : setPreviewBg, |
787 | 1678 getImgTrafo : getImgTrafo, |
1679 getQuality : getQuality, | |
1680 setQuality : setQuality, | |
1681 getScaleMode : getScaleMode, | |
1682 setScaleMode : setScaleMode, | |
972 | 1683 getFitMode : getFitMode, |
1684 setFitMode : setFitMode, | |
878 | 1685 canMove : canMove, |
795 | 1686 isFullArea : isFullArea, |
978 | 1687 isNumber : isNumber, |
974 | 1688 getFullscreenRect : getFullscreenRect, |
813 | 1689 getBorderWidth : getBorderWidth, |
1690 cropFloat : cropFloat, | |
1021 | 1691 cropFloatStr : cropFloatStr, |
1047
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factor out calibration/scalemode to new dialogs plugin
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|
1692 centerOnScreen : centerOnScreen, |
1058
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
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1693 withdraw : withdraw, |
95d28c6ad018
rgb slider now gets/sets values, plus some refactoring
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1694 isOnScreen : isOnScreen, |
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rgb slider now gets/sets values, plus some refactoring
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1695 find : find |
787 | 1696 }; |
788 | 1697 |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
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|
1698 // hook digilib plugin into jquery |
785 | 1699 $.fn.digilib = function (action) { |
799
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started to adapt regions plugin to new plugin mechanism
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|
1700 // plugin extension mechanism, called when the plugins' code is read |
786 | 1701 if (action === 'plugin') { |
1702 var plugin = arguments[1]; | |
1703 // each plugin needs a name | |
1704 if (plugin.name != null) { | |
1705 plugins[plugin.name] = plugin; | |
793
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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1706 // share common objects |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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1707 plugin.defaults = defaults; |
947 | 1708 plugin.buttons = buttons; |
793
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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1709 plugin.actions = actions; |
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documentation for new plugin api in jquery-digilib-plugin.txt.
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|
1710 plugin.fn = fn; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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|
1711 plugin.plugins = plugins; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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1712 // and install |
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1713 if (typeof plugin.install === 'function') { |
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1714 plugin.install(plugin); |
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1715 } |
786 | 1716 } |
799
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1717 // plugins will be initialised when action.init is called |
760
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primitive plugin extension mechanism - unsure how useful this is
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1718 } else if (actions[action]) { |
651
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renamed 'actions' to 'buttons' and 'methods' to 'actions'
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1719 // call action on this with the remaining arguments (inserting data as first argument) |
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renamed 'actions' to 'buttons' and 'methods' to 'actions'
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1720 var $elem = $(this); |
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renamed 'actions' to 'buttons' and 'methods' to 'actions'
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1721 var data = $elem.data('digilib'); |
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renamed 'actions' to 'buttons' and 'methods' to 'actions'
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1722 var args = Array.prototype.slice.call(arguments, 1); |
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renamed 'actions' to 'buttons' and 'methods' to 'actions'
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|
1723 args.unshift(data); |
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renamed 'actions' to 'buttons' and 'methods' to 'actions'
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1724 return actions[action].apply(this, args); |
798
b07d1824ca2a
fullscreen mode works without reload on browsers supporting history.pushstate!
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|
1725 } else if (typeof action === 'object' || !action) { |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
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|
1726 // call init on the digilib jQuery object |
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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1727 return actions.init.apply(this, arguments); |
605 | 1728 } else { |
713
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1729 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
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more cosmetics: added options to validate with http://www.jslint.com
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1730 } |
605 | 1731 }; |
692 | 1732 |
991
497ab03868ab
moved marks to separate plugin. (pack and unpack is still in digilib.js)
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1733 })(jQuery); |