Mercurial > hg > digilib-old
annotate webapp/src/main/webapp/jquery/jquery.digilib.js @ 1031:e077f52205a7
autoBirdDiv option
author | hertzhaft |
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date | Fri, 09 Mar 2012 20:47:06 +0100 |
parents | 9aa282ceec8a |
children | 4f17420392a9 |
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 2.1.6a1', |
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', |
616 | 84 // is the "about" window shown? |
741 | 85 'isAboutDivVisible' : false, |
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86 // default size of preview image for drag-scroll (preferrably same as Bird's Eye View image) |
954 | 87 'previewImgWidth' : 200, |
88 'previewImgHeight' : 200, | |
89 // maximum width or height of preview background image for drag-scroll | |
778 | 90 'maxBgSize' : 10000, |
795 | 91 // parameters used by background image |
954 | 92 'previewImgParamNames' : ['fn','pn','dw','dh','mo','rot'], |
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93 // reserved space in full page display (default value accounts for body margins) |
990 | 94 'scalerInsets' : { 'x' : 26, 'y': 20 } |
610 | 95 }; |
655 | 96 |
786 | 97 // list of plugins |
98 var plugins = {}; | |
787 | 99 // object to export functions to plugins |
948 | 100 var fn = null; |
786 | 101 // affine geometry plugin stub |
948 | 102 var geom = null; |
944 | 103 // rectangle with maximum zoom area |
948 | 104 var FULL_AREA = null; |
944 | 105 // limit for float comparison |
947 | 106 var EPSILON = 0.0001; |
107 // list of buttons | |
108 var buttons = {}; | |
655 | 109 |
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110 var actions = { |
954 | 111 /** init: digilib initialization |
112 * | |
113 * @param options | |
114 * @returns | |
115 */ | |
668 | 116 init : function(options) { |
786 | 117 // import geometry classes |
118 if (plugins.geometry == null) { | |
119 $.error("jquery.digilib.geometry plugin not found!"); | |
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120 // last straw: old version |
785 | 121 geom = dlGeometry(); |
122 } else { | |
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123 // geometry plugin puts classes in the shared fn |
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124 geom = fn.geometry; |
785 | 125 } |
126 FULL_AREA = geom.rectangle(0, 0, 1, 1); | |
788 | 127 |
668 | 128 // settings for this digilib instance are merged from defaults and options |
129 var settings = $.extend({}, defaults, options); | |
130 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
131 var queryParams = {}; | |
132 if (isFullscreen) { | |
1015 | 133 queryParams = parseQueryParams(); |
134 // filter additional parameters | |
135 for (var p in queryParams) { | |
136 if ($.inArray(p, settings.digilibParamNames) < 0) { | |
137 settings.additionalParamNames.push(p); | |
138 } | |
139 } | |
668 | 140 } |
141 return this.each(function() { | |
142 var $elem = $(this); | |
143 var data = $elem.data('digilib'); | |
688 | 144 var params, elemSettings; |
668 | 145 // if the plugin hasn't been initialized yet |
146 if (!data) { | |
147 // merge query parameters | |
148 if (isFullscreen) { | |
688 | 149 params = queryParams; |
668 | 150 } else { |
688 | 151 params = parseImgParams($elem); |
785 | 152 if ($.cookie) { |
727 | 153 // retrieve params from cookie |
154 var ck = "digilib-embed:fn:" + escape(params.fn) + ":pn:" + (params.pn || '1'); | |
785 | 155 var cs = $.cookie(ck); |
727 | 156 console.debug("get cookie=", ck, " value=", cs); |
157 if (cs) { | |
158 var cp = parseQueryString(cs); | |
728 | 159 // ignore fn and pn from cookie TODO: should we keep pn? |
160 delete cp.fn; | |
161 delete cp.pn; | |
785 | 162 $.extend(params, cp); |
727 | 163 } |
164 } | |
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165 } |
856 | 166 // setup $elem.data, needs "deep copy" because of nesting |
849 | 167 elemSettings = $.extend(true, {}, settings, params); |
697 | 168 data = { |
856 | 169 // let $(this) know about $(this) :-) |
668 | 170 $elem : $elem, |
856 | 171 // let $elem have its own copy of settings |
668 | 172 settings : elemSettings, |
856 | 173 // and of the URL query parameters |
965 | 174 queryParams : params |
668 | 175 }; |
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176 // store in jQuery data element |
668 | 177 $elem.data('digilib', data); |
949 | 178 } else { |
1015 | 179 // data exists |
180 elemSettings = data.settings; | |
668 | 181 } |
182 unpackParams(data); | |
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183 // list of current insets (dynamic for buttons etc.) |
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184 data.currentInsets = {'static' : elemSettings.scalerInsets}; |
744 | 185 // check if browser knows *background-size |
741 | 186 for (var bs in {'':1, '-moz-':1, '-webkit-':1, '-o-':1}) { |
187 if ($elem.css(bs+'background-size')) { | |
188 data.hasBgSize = true; | |
189 data.bgSizeName = bs+'background-size'; | |
190 break; | |
191 } | |
192 } | |
944 | 193 data.hasPreviewBg = false; |
942 | 194 // check if browser supports AJAX-like URL-replace without reload |
195 data.hasAsyncReload = (typeof history.replaceState === 'function'); | |
993 | 196 // check if browser sets complete on cached images |
197 data.hasCachedComplete = ! $.browser.mozilla; | |
744 | 198 // check digilib base URL |
199 if (elemSettings.digilibBaseUrl == null) { | |
200 if (isFullscreen) { | |
201 // take current host | |
202 var url = window.location.toString(); | |
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203 // assume the page lives in [webapp]/jquery/ |
915 | 204 var pos = url.indexOf('/jquery/'); |
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205 if (pos > 0) { |
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206 elemSettings.digilibBaseUrl = url.substring(0, pos); |
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207 } |
744 | 208 } else { |
1015 | 209 // may be we got the scaler URL from the img |
744 | 210 var url = elemSettings.scalerBaseUrl; |
211 if (url) { | |
212 // build it from scaler URL | |
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213 var pos = url.indexOf('/servlet/Scaler'); |
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214 elemSettings.digilibBaseUrl = url.substring(0, pos); |
744 | 215 } |
216 } | |
217 } | |
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218 // check scaler base URL |
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219 if (elemSettings.scalerBaseUrl == null) { |
1015 | 220 if (elemSettings.digilibBaseUrl) { |
221 elemSettings.scalerBaseUrl = elemSettings.digilibBaseUrl + '/servlet/Scaler'; | |
222 } | |
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223 } |
947 | 224 // set up event handlers |
225 $(data).on('update', handleUpdate); // handleUpdate needs to be the first handler for update | |
226 $(data).on('changeZoomArea', handleChangeZoomArea); | |
786 | 227 // initialise plugins |
787 | 228 for (n in plugins) { |
229 var p = plugins[n]; | |
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230 if (typeof p.init === 'function') { |
1015 | 231 // call the plugins init() method |
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232 p.init(data); |
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233 } |
786 | 234 } |
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235 // trigger unpack params handlers |
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236 $(data).trigger('unpack'); |
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237 // get image info from server if needed |
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238 if (data.scaleMode === 'pixel' || data.scaleMode === 'size') { |
797 | 239 loadImageInfo(data); // triggers "imageInfo" on completion |
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240 } |
947 | 241 // create HTML structure for scaler |
779 | 242 setupScalerDiv(data); |
668 | 243 // about window creation - TODO: could be deferred? restrict to only one item? |
244 setupAboutDiv(data); | |
795 | 245 // send setup event |
246 $(data).trigger('setup'); | |
668 | 247 }); |
248 }, | |
249 | |
954 | 250 /** destroy: clean up digilib |
251 * | |
252 * @param data | |
253 * @returns | |
254 */ | |
668 | 255 destroy : function(data) { |
256 return this.each(function(){ | |
257 var $elem = $(this); | |
917 | 258 $(window).off('.digilib'); // unbind all digilibs(?) |
668 | 259 data.digilib.remove(); |
260 $elem.removeData('digilib'); | |
261 }); | |
262 }, | |
263 | |
954 | 264 /** show or hide the 'about' window |
265 * | |
266 * @param data | |
267 * @param show | |
268 */ | |
668 | 269 showAboutDiv : function(data, show) { |
765 | 270 var on = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); |
271 data.settings.isAboutDivVisible = on; | |
946 | 272 //FIXME: highlightButtons(data, 'help', on); |
668 | 273 }, |
655 | 274 |
954 | 275 /** goto given page nr (+/-: relative) |
276 * | |
277 * @param data | |
278 * @param pageNr | |
279 * @returns {Boolean} | |
280 */ | |
668 | 281 gotoPage : function (data, pageNr) { |
282 var settings = data.settings; | |
283 var oldpn = settings.pn; | |
716 | 284 if (pageNr == null) { |
285 pageNr = window.prompt("Goto page number", oldpn); | |
286 } | |
668 | 287 var pn = setNumValue(settings, "pn", pageNr); |
288 if (pn == null) return false; // nothing happened | |
289 if (pn < 1) { | |
290 alert("no such page (page number too low)"); | |
291 settings.pn = oldpn; | |
292 return false; | |
293 } | |
767 | 294 // TODO: how do we get pt? |
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295 if (settings.pt != null) { |
668 | 296 if (pn > settings.pt) { |
297 alert("no such page (page number too high)"); | |
623 | 298 settings.pn = oldpn; |
299 return false; | |
634 | 300 } |
668 | 301 } |
302 // reset mk and others(?) | |
303 data.marks = []; | |
927 | 304 data.zoomArea = FULL_AREA.copy(); |
668 | 305 // then reload |
306 redisplay(data); | |
307 }, | |
654 | 308 |
954 | 309 /** zoom by a given factor |
310 * | |
311 * @param data | |
312 * @param factor | |
313 */ | |
668 | 314 zoomBy : function (data, factor) { |
315 zoomBy(data, factor); | |
316 }, | |
647 | 317 |
954 | 318 /** zoom to area (or interactive) |
319 * | |
320 * @param data | |
321 * @param area | |
322 */ | |
767 | 323 zoomArea : function (data, area) { |
324 if (area == null) { | |
325 // interactively | |
326 zoomArea(data); | |
327 } else { | |
328 data.zoomArea = geom.rectangle(area); | |
329 redisplay(data); | |
330 } | |
668 | 331 }, |
650 | 332 |
954 | 333 /** zoom out to full page |
334 * | |
335 * @param data | |
336 * @param mode | |
337 */ | |
668 | 338 zoomFull : function (data, mode) { |
1031 | 339 var settings = data.settings; |
917 | 340 data.zoomArea = FULL_AREA.copy(); |
972 | 341 setFitMode(data, mode); |
342 // zoom full only works in screen mode | |
343 setScaleMode(data, 'screen'); | |
668 | 344 redisplay(data); |
345 }, | |
346 | |
954 | 347 /** mirror the image |
348 * | |
349 * @param data | |
350 * @param mode | |
351 */ | |
668 | 352 mirror : function (data, mode) { |
353 var flags = data.scalerFlags; | |
354 if (mode === 'h') { | |
355 if (flags.hmir) { | |
356 delete flags.hmir; | |
357 } else { | |
358 flags.hmir = 1; | |
359 } | |
360 } else { | |
361 if (flags.vmir) { | |
362 delete flags.vmir; | |
363 } else { | |
364 flags.vmir = 1; | |
365 } | |
366 } | |
367 redisplay(data); | |
368 }, | |
650 | 369 |
954 | 370 /** rotate the image |
371 * | |
372 * @param data | |
373 * @param angle | |
374 */ | |
668 | 375 rotate : function (data, angle) { |
376 var rot = data.settings.rot; | |
377 if (angle == null) { | |
378 angle = window.prompt("Rotation angle:", rot); | |
379 } | |
380 data.settings.rot = angle; | |
381 redisplay(data); | |
382 }, | |
383 | |
954 | 384 /** change brightness |
385 * | |
386 * @param data | |
387 * @param factor | |
388 */ | |
668 | 389 brightness : function (data, factor) { |
390 var brgt = data.settings.brgt; | |
391 if (factor == null) { | |
392 factor = window.prompt("Brightness (-255..255)", brgt); | |
393 } | |
394 data.settings.brgt = factor; | |
395 redisplay(data); | |
396 }, | |
397 | |
954 | 398 /** change contrast |
399 * | |
400 * @param data | |
401 * @param factor | |
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402 * @param brightness : if given, adjust brightness along with contrast |
954 | 403 */ |
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404 contrast : function (data, factor, brightness) { |
668 | 405 var cont = data.settings.cont; |
406 if (factor == null) { | |
407 factor = window.prompt("Contrast (-8, 8)", cont); | |
408 } | |
409 data.settings.cont = factor; | |
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410 if (brightness) { |
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411 var brgt = 127 - (127 * Math.pow(2, factor)); |
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412 data.settings.brgt = brgt; |
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413 } |
668 | 414 redisplay(data); |
688 | 415 }, |
710 | 416 |
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417 /** change rgb contrast and brightness |
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418 * |
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419 * @param data |
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420 * @param rgbm |
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421 * @param rgba |
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422 */ |
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423 setRGB : function (data, rgbm, rgba) { |
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424 var oldRgbm = data.settings.rgbm; |
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425 var oldRgba = data.settings.rgba; |
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426 if (rgbm == null && rgba == null) { |
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427 var rgb = window.prompt("RGBm, RGBa (m_r/m_g/m_b, a_r/a_g/a_b)", oldRgbm+', '+oldRgba); |
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428 if (rgb != null) { |
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429 rgbs = rgb.split(/,\s*/); |
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430 if (rgbs.length == 2) { |
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431 data.settings.rgbm = rgbs[0]; |
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432 data.settings.rgba = rgbs[1]; |
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433 redisplay(data); |
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434 } |
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435 } |
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436 } else { |
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437 if (rgbm != null) data.settings.rgbm = rgbm; |
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438 if (rgba != null) data.settings.rgba = rgba; |
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439 redisplay(data); |
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440 } |
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441 }, |
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442 |
954 | 443 /** reset image parameters to defaults |
444 * TODO: improve this! | |
445 * | |
446 * @param data | |
447 */ | |
688 | 448 reset : function (data) { |
449 var settings = data.settings; | |
450 var paramNames = settings.digilibParamNames; | |
451 var params = data.queryParams; | |
452 // delete all digilib parameters | |
453 for (var i = 0; i < paramNames.length; i++) { | |
454 var paramName = paramNames[i]; | |
455 delete settings[paramName]; | |
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456 } |
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457 settings.fn = params.fn || ''; // no default defined |
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458 settings.pn = params.pn || defaults.pn; |
986 | 459 var size = getFullscreenImgSize(data); |
460 settings.dw = params.dw || size.width; | |
461 settings.dh = params.dh || size.height; | |
946 | 462 settings.visibleButtonSets = 1; // FIXME |
735
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463 // resets zoomArea, marks, scalerflags |
917 | 464 data.zoomArea = FULL_AREA.copy(); |
735
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465 data.marks = []; |
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466 data.scalerFlags = {}; |
712 | 467 delete data.dlOpts.fitwidth; |
468 delete data.dlOpts.fitheight; | |
986 | 469 data.scaleMode = 'screen'; |
688 | 470 redisplay(data); |
689 | 471 }, |
472 | |
954 | 473 /** presents a reference url (returns value if noprompt) |
474 * | |
475 * @param data | |
476 * @param noprompt | |
477 * @returns | |
478 */ | |
703 | 479 reference : function (data, noprompt) { |
744 | 480 var url = getDigilibUrl(data); |
703 | 481 if (noprompt == null) { |
482 window.prompt("URL reference to the current view", url); | |
1011 | 483 // return nothing so we can use is in javascript: url without reload |
484 return; | |
703 | 485 } |
486 return url; | |
487 }, | |
710 | 488 |
1011 | 489 /** |
490 * Returns URL to the full digilib.html with the current parameters. | |
491 * Redirects immediately with mode=open. | |
492 * | |
493 * @param data | |
494 * @param mode | |
495 */ | |
496 digilibUrl : function (data, mode) { | |
497 var url = getDigilibUrl(data, '/jquery/digilib.html'); | |
498 if (mode === 'open') { | |
499 // redirect | |
500 window.location = url; | |
501 } else if (mode === 'open_new') { | |
502 // open new window | |
503 window.open(url); | |
504 return; | |
505 } | |
506 return url; | |
507 }, | |
508 | |
509 | |
954 | 510 /** set image quality |
511 * | |
512 * @param data | |
513 * @param qual | |
514 */ | |
748 | 515 setQuality : function (data, qual) { |
703 | 516 var oldq = getQuality(data); |
517 if (qual == null) { | |
518 qual = window.prompt("Image quality (0..2)", oldq); | |
519 } | |
520 qual = parseInt(qual, 10); | |
521 if (qual >= 0 && qual <= 2) { | |
522 setQuality(data, qual); | |
523 redisplay(data); | |
524 } | |
754
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525 }, |
760
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526 |
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527 /** set image size |
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528 * |
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529 * @param data |
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530 * @param size |
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531 */ |
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532 setSize : function (data, size) { |
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533 var olds = data.settings.ws; |
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534 if (size == null) { |
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535 size = window.prompt("Image size (1=screen size)", olds); |
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536 } |
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537 size = parseFloat(size); |
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538 if (size > 0) { |
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539 data.settings.ws = size; |
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540 redisplay(data); |
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541 } |
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542 }, |
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543 |
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544 /** calibrate (set client screen dpi) |
954 | 545 * |
546 * @param data | |
547 * @param res | |
548 */ | |
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549 calibrate : function (data, res) { |
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550 var oldRes = data.settings.ddpi; |
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551 if (res == null) { |
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552 res = window.prompt("Display resolution (dpi)", oldRes); |
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553 } |
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554 if (res != null) { |
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555 data.settings.ddpi = res; |
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556 redisplay(data); |
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557 } |
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558 }, |
775 | 559 |
954 | 560 /** set image scale mode |
561 * | |
562 * @param data | |
563 * @param mode | |
564 */ | |
761
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565 setScaleMode : function (data, mode) { |
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566 var oldM = getScaleMode(data); |
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567 if (mode == null) { |
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568 mode = window.prompt("Image scale mode (screen, pixel, size)", oldM); |
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569 } |
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570 if (mode != null) { |
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571 setScaleMode(data, mode); |
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572 redisplay(data); |
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573 } |
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574 } |
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575 // end of actions |
605 | 576 }; |
604 | 577 |
954 | 578 /** return parameters from page url |
579 * | |
580 */ | |
607 | 581 var parseQueryParams = function() { |
636 | 582 return parseQueryString(window.location.search.slice(1)); |
583 }; | |
655 | 584 |
984 | 585 /** |
586 * returns parameters from embedded img-element | |
954 | 587 * |
588 */ | |
607 | 589 var parseImgParams = function($elem) { |
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590 var src = $elem.find('img').first().attr('src'); |
710 | 591 if (!src) return null; |
607 | 592 var pos = src.indexOf('?'); |
593 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
594 var scalerUrl = src.substring(0, pos); | |
627 | 595 var params = parseQueryString(query); |
596 params.scalerBaseUrl = scalerUrl; | |
597 return params; | |
636 | 598 }; |
607 | 599 |
984 | 600 /** |
601 * parses query parameter string into parameter object | |
954 | 602 * |
603 */ | |
607 | 604 var parseQueryString = function(query) { |
701 | 605 var params = {}; |
606 if (query == null) return params; | |
607 | 607 var pairs = query.split("&"); |
636 | 608 //var keys = []; |
607 | 609 for (var i = 0; i < pairs.length; i++) { |
610 var pair = pairs[i].split("="); | |
611 if (pair.length === 2) { | |
627 | 612 params[pair[0]] = pair[1]; |
636 | 613 //keys.push(pair[0]); |
634 | 614 } |
636 | 615 } |
627 | 616 return params; |
636 | 617 }; |
668 | 618 |
984 | 619 /** |
620 * return a query string from key names from a parameter hash | |
954 | 621 * (ignores keys if the same value is in defaults) |
622 * | |
623 */ | |
643 | 624 var getParamString = function (settings, keys, defaults) { |
615 | 625 var paramString = ''; |
650 | 626 var nx = false; |
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627 for (var i = 0; i < keys.length; ++i) { |
615 | 628 var key = keys[i]; |
663 | 629 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 630 // first param gets no '&' |
650 | 631 if (nx) { |
632 paramString += '&'; | |
633 } else { | |
634 nx = true; | |
635 } | |
615 | 636 // add parm=val |
637 paramString += key + '=' + settings[key]; | |
643 | 638 } |
615 | 639 } |
640 return paramString; | |
631 | 641 }; |
642 | |
984 | 643 /** |
644 * returns URL and query string for Scaler | |
954 | 645 */ |
636 | 646 var getScalerUrl = function (data) { |
741 | 647 packParams(data); |
653 | 648 var settings = data.settings; |
652 | 649 if (settings.scalerBaseUrl == null) { |
650 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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651 } |
636 | 652 var keys = settings.scalerParamNames; |
643 | 653 var queryString = getParamString(settings, keys, defaults); |
636 | 654 var url = settings.scalerBaseUrl + '?' + queryString; |
655 return url; | |
656 }; | |
657 | |
954 | 658 /** returns URL for preview background image |
659 * | |
660 */ | |
661 var getPreviewImgUrl = function (data, moreParams) { | |
741 | 662 var settings = data.settings; |
795 | 663 var bgOptions = { |
954 | 664 dw : settings.previewImgWidth, |
665 dh : settings.previewImgHeight | |
741 | 666 }; |
795 | 667 var bgSettings = $.extend({}, settings, bgOptions); |
931 | 668 // filter scaler flags (use only hmir and vmir) |
795 | 669 if (bgSettings.mo != null) { |
670 var mo = ''; | |
671 if (data.scalerFlags.hmir != null) { | |
672 mo += 'hmir,'; | |
767 | 673 } |
795 | 674 if (data.scalerFlags.vmir != null) { |
675 mo += 'vmir'; | |
676 } | |
677 bgSettings.mo = mo; | |
743 | 678 } |
954 | 679 var params = getParamString(bgSettings, settings.previewImgParamNames, defaults); |
743 | 680 var url = settings.scalerBaseUrl + '?' + params; |
741 | 681 return url; |
682 }; | |
745
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683 |
1011 | 684 /** |
685 * returns URL and query string for current digilib. | |
686 * if digilibPage != null returns URL to page in digilib installation with digilib parameters, | |
687 * otherwise using current URL and parameters. | |
954 | 688 * |
689 */ | |
1011 | 690 var getDigilibUrl = function (data, digilibPage) { |
643 | 691 packParams(data); |
636 | 692 var settings = data.settings; |
1011 | 693 var paramList = settings.digilibParamNames; |
694 if (digilibPage != null) { | |
695 var baseUrl = data.settings.digilibBaseUrl + digilibPage; | |
696 } else { | |
697 paramList = settings.additionalParamNames.concat(settings.digilibParamNames); | |
698 if (settings.suppressParamNames != null) { | |
699 // eliminate suppressed parameters from list | |
700 paramList = $.map(paramList, function(e, idx) { | |
701 if ($.inArray(e, settings.suppressParamNames) >= 0) { | |
702 return null; | |
703 } else { | |
704 return e; | |
705 } | |
706 }); | |
707 } | |
708 // take url from current location | |
709 var baseUrl = window.location.href; | |
710 var pos = baseUrl.indexOf('?'); | |
711 if (pos > -1) { | |
712 baseUrl = baseUrl.substring(0, pos); | |
713 } | |
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714 } |
1007 | 715 var queryString = getParamString(settings, paramList, defaults); |
1011 | 716 return baseUrl + '?' + queryString; |
636 | 717 }; |
718 | |
954 | 719 /** loads image information from digilib server via HTTP |
720 * | |
721 */ | |
797 | 722 var loadImageInfo = function (data) { |
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723 var settings = data.settings; |
917 | 724 // bind default function (only once) |
725 $(data).off('imageInfo', handleImageInfo); | |
726 $(data).on('imageInfo', handleImageInfo); | |
727 var url = settings.digilibBaseUrl + '/ImgInfo-json.jsp'; | |
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728 url += '?' + getParamString(settings, ['fn', 'pn'], defaults); |
767 | 729 // TODO: better error handling |
785 | 730 $.getJSON(url, function (json) { |
754
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diff
changeset
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731 console.debug("got json data=", json); |
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diff
changeset
|
732 data.imgInfo = json; |
797 | 733 // send event |
734 $(data).trigger('imageInfo', [json]); | |
754
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735 }); |
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736 }; |
775 | 737 |
954 | 738 /** processes some parameters into objects and stuff |
739 * | |
740 */ | |
631 | 741 var unpackParams = function (data) { |
742 var settings = data.settings; | |
636 | 743 // zoom area |
631 | 744 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 745 data.zoomArea = zoomArea; |
650 | 746 // mo (Scaler flags) |
747 var flags = {}; | |
748 if (settings.mo) { | |
749 var pa = settings.mo.split(","); | |
750 for (var i = 0; i < pa.length ; i++) { | |
751 flags[pa[i]] = pa[i]; | |
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752 } |
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753 } |
650 | 754 data.scalerFlags = flags; |
763
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755 data.scaleMode = getScaleMode(data); |
723 | 756 retrieveOptions(data); |
655 | 757 }; |
758 | |
954 | 759 /** put area into parameters |
760 * | |
761 */ | |
822 | 762 var packArea = function (settings, area) { |
763 if (!area) return; | |
764 // zoom area | |
765 settings.wx = cropFloat(area.x); | |
766 settings.wy = cropFloat(area.y); | |
767 settings.ww = cropFloat(area.width); | |
768 settings.wh = cropFloat(area.height); | |
769 }; | |
770 | |
954 | 771 /** pack scaler flags into parameters |
772 * | |
773 */ | |
822 | 774 var packScalerFlags = function (settings, flags) { |
775 if (!flags) return; | |
776 var mo = ''; | |
777 for (var f in flags) { | |
778 if (mo) { | |
779 mo += ','; | |
780 } | |
781 mo += f; | |
782 } | |
783 settings.mo = mo; | |
784 }; | |
785 | |
954 | 786 /** put objects back into parameters |
787 * | |
788 */ | |
631 | 789 var packParams = function (data) { |
790 var settings = data.settings; | |
822 | 791 packArea(settings, data.zoomArea); |
792 packScalerFlags(settings, data.scalerFlags); | |
793 // store user interface options in cookie | |
723 | 794 storeOptions(data); |
992
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795 // trigger pack handlers |
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796 $(data).trigger('pack'); |
709 | 797 }; |
688 | 798 |
954 | 799 /** store digilib options in a cookie |
800 * | |
801 */ | |
723 | 802 var storeOptions = function (data) { |
709 | 803 var settings = data.settings; |
804 if (data.dlOpts) { | |
805 // save digilib settings in options | |
806 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
807 data.dlOpts.buttons = settings.visibleButtonSets; | |
808 var clop = ''; | |
809 for (var o in data.dlOpts) { | |
810 if (clop) { | |
811 clop += '&'; | |
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812 } |
709 | 813 clop += o + '=' + data.dlOpts[o]; |
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814 } |
785 | 815 if ($.cookie) { |
709 | 816 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; |
817 console.debug("set cookie=", ck, " value=", clop); | |
785 | 818 $.cookie(ck, clop); |
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819 } |
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820 } |
785 | 821 if (settings.interactionMode !== 'fullscreen' && $.cookie) { |
727 | 822 // store normal parameters in cookie for embedded mode |
823 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
824 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
825 console.debug("set cookie=", ck, " value=", qs); | |
785 | 826 $.cookie(ck, qs); |
727 | 827 } |
631 | 828 }; |
655 | 829 |
983 | 830 /** retrieve digilib options from a cookie |
954 | 831 * |
832 */ | |
723 | 833 var retrieveOptions = function (data) { |
709 | 834 // clop (digilib options) |
835 var opts = {}; | |
836 var settings = data.settings; | |
785 | 837 if ($.cookie) { |
709 | 838 // read from cookie |
839 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
785 | 840 var cp = $.cookie(ck); |
709 | 841 console.debug("get cookie=", ck, " value=", cp); |
842 // in query string format | |
843 opts = parseQueryString(cp); | |
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844 } |
709 | 845 data.dlOpts = opts; |
846 // birdview option | |
847 if (opts.birdview != null) { | |
848 settings.isBirdDivVisible = opts.birdview === '1'; | |
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849 } |
709 | 850 // visible button sets |
851 if (opts.buttons != null) { | |
852 settings.visibleButtonSets = opts.buttons; | |
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853 } |
711 | 854 }; |
709 | 855 |
949 | 856 /** (re)load the image with the current settings. |
857 * | |
858 */ | |
644
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859 var redisplay = function (data) { |
1031 | 860 var settings = data.settings; |
861 if (settings.autoBirdDiv) { | |
862 settings.isBirdDivVisible = !isFullArea(data.zoomArea); | |
863 } | |
636 | 864 if (settings.interactionMode === 'fullscreen') { |
865 // update location.href (browser URL) in fullscreen mode | |
644
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866 var url = getDigilibUrl(data); |
636 | 867 var history = window.history; |
942 | 868 if (data.hasAsyncReload) { |
798
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869 console.debug("faking reload to "+url); |
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870 // change url without reloading (stateObj, title, url) |
890
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871 // TODO: we really need to push the state in stateObj and listen to pop-events |
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872 try { |
1015 | 873 history.replaceState({}, '', url); |
874 // show busy cursor | |
875 $('body').css('cursor', 'progress'); | |
876 data.$scaler.css('cursor', 'progress'); | |
877 // change img src | |
878 var $img = data.$img; | |
879 var imgurl = getScalerUrl(data); | |
880 $img.attr('src', imgurl); | |
881 // trigger load event if image is cached. Doesn't work with Firefox!! | |
882 if (data.hasCachedComplete && $img.prop('complete')) { | |
883 console.debug("cached img.load"); | |
884 $img.trigger('load'); | |
885 } | |
886 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { | |
887 // we need image info, do we have it? | |
888 if (data.imgInfo == null) { | |
889 loadImageInfo(data); | |
890 } | |
891 } | |
892 // update if we have a preview | |
893 if (data.hasPreviewBg) { | |
894 $(data).trigger('update'); | |
895 } | |
896 //FIXME: highlightButtons(data); | |
897 // send event | |
898 $(data).trigger('redisplay'); | |
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899 } catch (e) { |
1015 | 900 console.error("replaceState("+url+") didn't work: "+e); |
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901 // reload window |
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902 window.location = url; |
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903 } |
798
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904 } else { |
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905 // reload window |
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906 window.location = url; |
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907 } |
636 | 908 } else { |
909 // embedded mode -- just change img src | |
1015 | 910 // show busy cursor |
911 $('body').css('cursor', 'progress'); | |
912 data.$scaler.css('cursor', 'progress'); | |
913 var $img = data.$img; | |
636 | 914 var url = getScalerUrl(data); |
949 | 915 $img.attr('src', url); |
1015 | 916 // trigger load event if image is cached |
917 if ($img.prop('complete')) $img.trigger('load'); | |
918 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { | |
919 // we need image info, do we have it? | |
920 if (data.imgInfo == null) { | |
921 loadImageInfo(data); | |
922 } | |
923 } | |
949 | 924 //FIXME: highlightButtons(data); |
795 | 925 // send event |
926 $(data).trigger('redisplay'); | |
913
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927 } |
622 | 928 }; |
929 | |
949 | 930 /** update display (overlays etc.) |
931 * (just triggers "update" event) | |
932 */ | |
767 | 933 var updateDisplay = function (data) { |
947 | 934 // send event |
935 $(data).trigger('update'); | |
936 }; | |
937 | |
949 | 938 /** handle "update" display event. |
991
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939 * updates image transform, etc. |
949 | 940 */ |
947 | 941 var handleUpdate = function (evt) { |
1015 | 942 var data = this; |
767 | 943 updateImgTrafo(data); |
944 setupZoomDrag(data); | |
945 }; | |
974 | 946 |
984 | 947 /** |
948 * returns maximum size for scaler img in fullscreen mode. | |
949 | 949 */ |
778 | 950 var getFullscreenImgSize = function (data) { |
989
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951 //var mode = data.settings.interactionMode; |
662 | 952 var $win = $(window); |
953 var winH = $win.height(); | |
779 | 954 var winW = $win.width(); |
989
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955 // add all current insets |
991
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956 // accounting for left/right border, body margins and additional requirements |
989
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957 var insets = { 'x' : 0, 'y' : 0}; |
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958 for (var n in data.currentInsets) { |
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959 insets.x += data.currentInsets[n].x; |
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960 insets.y += data.currentInsets[n].y; |
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961 }; |
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962 var imgW = winW - insets.x; |
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963 var imgH = winH - insets.y; |
998 | 964 console.debug('getFullscreenImgSize - screen w/h:', winW, winH, 'window.width', $win.width(), 'img w/h:', imgW, imgH); |
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965 return geom.size(imgW, imgH); |
662 | 966 }; |
967 | |
984 | 968 /** |
969 * returns a rectangle.with the fullscreen dimensions | |
974 | 970 */ |
971 var getFullscreenRect = function (data) { | |
972 return geom.rectangle(getFullscreenImgSize(data)); | |
973 }; | |
974 | |
984 | 975 /** |
976 * creates HTML structure for digilib in elem | |
949 | 977 */ |
627 | 978 var setupScalerDiv = function (data) { |
979 var settings = data.settings; | |
647 | 980 var $elem = data.$elem; |
996 | 981 var cssPrefix = settings.cssPrefix; |
982 $elem.addClass(cssPrefix+'digilib'); | |
728 | 983 var $img; |
984 var scalerUrl; | |
608 | 985 if (settings.interactionMode === 'fullscreen') { |
728 | 986 // fullscreen |
995 | 987 $elem.addClass(cssPrefix+'fullscreen'); |
778 | 988 var imgSize = getFullscreenImgSize(data); |
1012 | 989 data.maxImgSize = imgSize; |
650 | 990 // fitwidth/height omits destination height/width |
728 | 991 if (data.dlOpts.fitheight == null) { |
650 | 992 settings.dw = imgSize.width; |
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993 } |
728 | 994 if (data.dlOpts.fitwidth == null) { |
650 | 995 settings.dh = imgSize.height; |
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996 } |
686 | 997 scalerUrl = getScalerUrl(data); |
728 | 998 $img = $('<img/>'); |
609 | 999 } else { |
728 | 1000 // embedded mode -- try to keep img tag |
1015 | 1001 data.maxImgSize = geom.rectangle($elem).getSize(); |
995 | 1002 $elem.addClass(cssPrefix+'embedded'); |
728 | 1003 scalerUrl = getScalerUrl(data); |
623 | 1004 $img = $elem.find('img'); |
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1005 if ($img.length > 0) { |
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1006 var oldUrl = $img.attr('src'); |
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1007 // keep img attributes from html |
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1008 var title = $img.attr('title'); |
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1009 var alt = $img.attr('alt'); |
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1010 if (oldUrl === scalerUrl) { |
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1011 console.debug("img detach:", $img); |
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1012 $img.detach(); |
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1013 } else { |
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1014 $img = $('<img/>'); |
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1015 $img.attr("title", title); |
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1016 $img.attr("alt", alt); |
728 | 1017 } |
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1018 } else { |
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1019 $img = $('<img/>'); |
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1020 } |
608 | 1021 } |
822 | 1022 // create new inner html, keeping buttons and content marked with "keep" class |
996 | 1023 $elem.contents(':not(.'+cssPrefix+'keep)').remove(); |
995 | 1024 var $scaler = $('<div class="'+cssPrefix+'scaler"/>'); |
779 | 1025 // scaler should be the first child element? |
1026 $elem.prepend($scaler); | |
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1027 $scaler.append($img); |
995 | 1028 $img.addClass(cssPrefix+'pic'); |
649 | 1029 data.$scaler = $scaler; |
636 | 1030 data.$img = $img; |
947 | 1031 // set busy cursor |
1032 $('body').css('cursor','progress'); | |
1015 | 1033 data.$scaler.css('cursor', 'progress'); |
942 | 1034 // set up image load handler before setting the src attribute (IE bug) |
687 | 1035 $img.load(scalerImgLoadedHandler(data)); |
767 | 1036 $img.error(function () {console.error("error loading scaler image");}); |
687 | 1037 $img.attr('src', scalerUrl); |
608 | 1038 }; |
615 | 1039 |
949 | 1040 /** creates HTML structure for the about view in elem |
1041 * | |
1042 */ | |
628
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1043 var setupAboutDiv = function (data) { |
647 | 1044 var $elem = data.$elem; |
628
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1045 var settings = data.settings; |
996 | 1046 var $aboutDiv = $('<div class="'+settings.cssPrefix+'about" style="display:none"/>'); |
886
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1047 var $header = $('<p>Digilib Image Viewer</p>'); |
616 | 1048 var $link = $('<a/>'); |
996 | 1049 var $logo = $('<img class="'+settings.cssPrefix+'logo" title="digilib"/>'); |
616 | 1050 var $content = $('<p/>'); |
1051 $elem.append($aboutDiv); | |
1052 $aboutDiv.append($header); | |
1053 $aboutDiv.append($link); | |
1054 $aboutDiv.append($content); | |
1055 $link.append($logo); | |
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1056 logoUrl = settings.logoUrl; |
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1057 // make relative logoUrl absolute |
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1058 if (logoUrl.charAt(0) !== '/' && logoUrl.substring(0,3) !== 'http') { |
1015 | 1059 logoUrl = settings.digilibBaseUrl + '/' + logoUrl; |
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1060 } |
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1061 $logo.attr('src', logoUrl); |
635 | 1062 $link.attr('href', settings.homeUrl); |
616 | 1063 $content.text('Version: ' + settings.version); |
775 | 1064 data.$aboutDiv = $aboutDiv; |
635 | 1065 // click hides |
917 | 1066 $aboutDiv.on('click.digilib', function () { |
775 | 1067 actions['showAboutDiv'](data, false); |
710 | 1068 }); |
634 | 1069 }; |
1070 | |
949 | 1071 /** shows some window e.g. 'about' (toggle visibility if show is null) |
1072 * | |
1073 */ | |
635 | 1074 var showDiv = function (isVisible, $div, show) { |
645 | 1075 if (show == null) { |
635 | 1076 // toggle visibility |
1077 isVisible = !isVisible; | |
1078 } else { | |
1079 // set visibility | |
1080 isVisible = show; | |
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1081 } |
635 | 1082 if (isVisible) { |
1083 $div.fadeIn(); | |
1084 } else { | |
1085 $div.fadeOut(); | |
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|
1086 } |
635 | 1087 return isVisible; |
634 | 1088 }; |
616 | 1089 |
949 | 1090 /** Create Transform from zoom area and image size and parameters. |
1091 * Returns Transform between normalized coordinates and image pixel coordinates. | |
1092 */ | |
772
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1093 var getImgTrafo = function ($img, area, rot, hmir, vmir, mode, data) { |
658
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1094 var picrect = geom.rectangle($img); |
949 | 1095 // handle pixel-by-pixel and original-size modes |
763
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1096 if (mode != null) { |
772
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1097 var imgInfo = data.imgInfo; |
763
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1098 if (mode === 'pixel') { |
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1099 // scaler mo=clip - image area size does not come from ww, wh |
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1100 if (imgInfo != null) { |
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1101 area.width = picrect.width / imgInfo.width; |
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1102 area.height = picrect.height / imgInfo.height; |
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1103 } else { |
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1104 console.error("No image info for pixel mode!"); |
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1105 } |
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1106 } |
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1107 if (mode === 'size') { |
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1108 // scaler mo=osize - image area size does not come from ww, wh |
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1109 if (imgInfo != null) { |
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1110 var ddpi = parseFloat(data.settings.ddpi); |
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1111 area.width = (picrect.width / ddpi) / (imgInfo.width / imgInfo.dpi_x); |
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1112 area.height = (picrect.height / ddpi) / (imgInfo.height / imgInfo.dpi_y); |
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1113 } else { |
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1114 console.error("No image info for original size mode!"); |
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1115 } |
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1116 } |
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1117 } |
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1118 var trafo = geom.transform(); |
675 | 1119 // move zoom area offset to center |
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1120 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
675 | 1121 // scale zoom area size to [1,1] |
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1122 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
675 | 1123 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
1124 if (rot || hmir || vmir) { | |
1125 // move [0.5,0.5] to center | |
1126 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
1127 if (hmir) { | |
1128 // mirror about center | |
1129 trafo.concat(trafo.getMirror('y')); | |
713
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1130 } |
675 | 1131 if (vmir) { |
1132 // mirror about center | |
1133 trafo.concat(trafo.getMirror('x')); | |
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1134 } |
675 | 1135 if (rot) { |
1136 // rotate around center | |
1137 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
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1138 } |
675 | 1139 // move back |
1140 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
713
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|
1141 } |
664
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|
1142 // scale to screen position and size |
658
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|
1143 trafo.concat(trafo.getScale(picrect)); |
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1144 trafo.concat(trafo.getTranslation(picrect)); |
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1145 return trafo; |
655 | 1146 }; |
678
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|
1147 |
949 | 1148 /** update current scaler image transform |
1149 */ | |
767 | 1150 var updateImgTrafo = function (data) { |
1151 var $img = data.$img; | |
895 | 1152 if ($img == null) |
1153 return; | |
1154 var imgLoaded = $.browser.msie | |
949 | 1155 ? $img.prop('width') > 0 |
1156 : $img.prop('complete'); | |
950
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|
1157 if (imgLoaded || data.hasPreviewBg) { |
1015 | 1158 // create Transform from current zoomArea and image size |
1159 data.imgTrafo = getImgTrafo($img, data.zoomArea, data.settings.rot, | |
1160 data.scalerFlags.hmir, data.scalerFlags.vmir, | |
1161 data.scaleMode, data); | |
1162 console.debug("updateImgTrafo: ", data.imgTrafo); | |
1163 } | |
767 | 1164 }; |
775 | 1165 |
949 | 1166 /** return handler for load event of scaler img |
1167 * (necessary for closure with data object) | |
1168 */ | |
767 | 1169 var scalerImgLoadedHandler = function (data) { |
1170 return function () { | |
1171 var $img = $(this); | |
1172 console.debug("scaler img loaded=",$img); | |
1173 var $scaler = data.$scaler; | |
760
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|
1174 var imgRect = geom.rectangle($img); |
931 | 1175 data.imgRect = imgRect; |
1015 | 1176 // reset busy cursor |
1177 $('body').css('cursor', 'auto'); | |
1178 $scaler.css('cursor', 'auto'); | |
957 | 1179 // adjust scaler div size (beware: setting position makes the element relative) |
1180 imgRect.getSize().adjustDiv($scaler); | |
715 | 1181 // show image in case it was hidden (for example in zoomDrag) |
733 | 1182 $img.css('visibility', 'visible'); |
1019
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|
1183 $scaler.css({'opacity' : '1'}); |
950
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|
1184 data.hasPreviewBg = false; |
767 | 1185 // update display (render marks, etc.) |
1186 updateDisplay(data); | |
658
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|
1187 }; |
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|
1188 }; |
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|
1189 |
949 | 1190 /** handle imageInfo loaded event |
1191 * | |
1192 */ | |
797 | 1193 var handleImageInfo = function (evt, json) { |
1015 | 1194 console.debug("handleImageInfo:", json); |
797 | 1195 var data = this; |
1196 updateDisplay(data); | |
1197 }; | |
813 | 1198 |
949 | 1199 /** handle changeZoomArea event |
1200 * | |
1201 */ | |
942 | 1202 var handleChangeZoomArea = function (evt, newZa) { |
1015 | 1203 console.debug("handleChangeZoomArea:", newZa); |
1204 var data = this; | |
1205 // hide all overlays (marks/regions) | |
996 | 1206 data.$elem.find('.'+data.settings.cssPrefix+'overlay').hide(); |
1015 | 1207 setPreviewBg(data, newZa); |
942 | 1208 }; |
1015 | 1209 |
949 | 1210 /** zoom by the given factor. |
1211 * | |
1212 */ | |
643 | 1213 var zoomBy = function(data, factor) { |
1214 var area = data.zoomArea; | |
1215 var newarea = area.copy(); | |
1216 // scale | |
1217 newarea.width /= factor; | |
1218 newarea.height /= factor; | |
1219 // and recenter | |
1220 newarea.x -= 0.5 * (newarea.width - area.width); | |
1221 newarea.y -= 0.5 * (newarea.height - area.height); | |
735
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diff
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|
1222 newarea = FULL_AREA.fit(newarea); |
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|
1223 setZoomArea(data, newarea); |
972 | 1224 // reset modes |
1225 setScaleMode(data, 'screen'); | |
1226 setFitMode(data, 'both'); | |
644
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|
1227 redisplay(data); |
643 | 1228 }; |
1229 | |
949 | 1230 /** zoom to the area around two clicked points. |
1231 * | |
1232 */ | |
654 | 1233 var zoomArea = function(data) { |
1234 $elem = data.$elem; | |
1235 $scaler = data.$scaler; | |
1236 var pt1, pt2; | |
996 | 1237 var $zoomDiv = $('<div class="'+data.settings.cssPrefix+'zoomrect" style="display:none"/>'); |
654 | 1238 $elem.append($zoomDiv); |
775 | 1239 // $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 1240 var picRect = geom.rectangle($scaler); |
1241 // FIX ME: is there a way to query the border width from CSS info? | |
1242 // rect.x -= 2; // account for overlay borders | |
1243 // rect.y -= 2; | |
1244 | |
1245 var zoomStart = function (evt) { | |
1246 pt1 = geom.position(evt); | |
1247 // setup and show zoom div | |
738 | 1248 pt1.adjustDiv($zoomDiv); |
668 | 1249 $zoomDiv.width(0).height(0); |
654 | 1250 $zoomDiv.show(); |
1251 // register events | |
917 | 1252 $elem.on("mousemove.dlZoomArea", zoomMove); |
1253 $elem.on("mouseup.dlZoomArea", zoomEnd); | |
654 | 1254 return false; |
1255 }; | |
668 | 1256 |
741 | 1257 // mouse move handler |
1258 var zoomMove = function (evt) { | |
1259 pt2 = geom.position(evt); | |
1260 var rect = geom.rectangle(pt1, pt2); | |
1261 rect.clipTo(picRect); | |
1262 // update zoom div | |
1263 rect.adjustDiv($zoomDiv); | |
1264 return false; | |
1265 }; | |
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|
1266 |
654 | 1267 // mouseup handler: end moving |
1268 var zoomEnd = function (evt) { | |
1269 pt2 = geom.position(evt); | |
1270 // assume a click and continue if the area is too small | |
1271 var clickRect = geom.rectangle(pt1, pt2); | |
710 | 1272 if (clickRect.getArea() <= 5) return false; |
654 | 1273 // hide zoom div |
1274 $zoomDiv.remove(); | |
1275 // unregister events | |
917 | 1276 $elem.off("mousemove.dlZoomArea", zoomMove); |
1277 $elem.off("mouseup.dlZoomArea", zoomEnd); | |
654 | 1278 // clip and transform |
1279 clickRect.clipTo(picRect); | |
1280 var area = data.imgTrafo.invtransform(clickRect); | |
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preview for ZoomArea. shows distortions when changing aspect ratio.
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|
1281 setZoomArea(data, area); |
972 | 1282 // reset modes |
1283 setFitMode(data, 'both'); | |
1284 setScaleMode(data, 'screen'); | |
654 | 1285 redisplay(data); |
1286 return false; | |
1287 }; | |
668 | 1288 |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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741
diff
changeset
|
1289 // clear old handler (also ZoomDrag) |
917 | 1290 $scaler.off('.dlZoomArea'); |
1291 $scaler.off(".dlZoomDrag"); | |
1292 $elem.off('.dlZoomArea'); | |
654 | 1293 // bind start zoom handler |
738 | 1294 $scaler.one('mousedown.dlZoomArea', zoomStart); |
654 | 1295 }; |
647 | 1296 |
950
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|
1297 /** set preview background. |
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1298 * optional newZoomArea scales and moves background to preview. |
949 | 1299 */ |
950
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1300 var setPreviewBg = function(data, newZoomArea) { |
746
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1301 var $scaler = data.$scaler; |
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1302 var $img = data.$img; |
950
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|
1303 var imgTrafo = data.imgTrafo; |
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|
1304 var scalerPos = geom.position($scaler); |
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|
1305 var bgRect = null; |
746
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|
1306 // hide the scaler img, show background of div instead |
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|
1307 $img.css('visibility', 'hidden'); |
918
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|
1308 // use current image as first background |
746
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1309 var scalerCss = { |
1015 | 1310 'background-image' : 'url(' + $img.attr('src') + ')', |
950
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1311 'background-repeat' : 'no-repeat', |
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|
1312 'background-position' : '0px 0px', |
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|
1313 'opacity' : '0.7', |
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1314 'cursor' : 'move' |
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|
1315 }; |
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1316 if (newZoomArea != null) { |
1015 | 1317 // check if aspect ratio has changed |
1318 if (Math.abs(newZoomArea.getAspect() - data.zoomArea.getAspect()) > 0.001 ) { | |
1319 var newRect = data.imgTrafo.transform(newZoomArea); | |
1320 var newAspect = newRect.getAspect(); | |
1321 var newSize = data.maxImgSize.fitAspect(newAspect); | |
1322 // set scaler to presumed new size | |
1323 newSize.adjustDiv($scaler); | |
1324 console.debug("adjusting aspect ratio for preview", data.maxImgSize, newSize); | |
1325 } | |
1326 // get transform for new zoomArea (use 'screen' instead of data.scaleMode) | |
1327 imgTrafo = getImgTrafo($scaler, newZoomArea, data.settings.rot, | |
1328 data.scalerFlags.hmir, data.scalerFlags.vmir, | |
1329 'screen', data); | |
1330 // for new background coordinates transform old zoomArea with new Transform | |
1331 bgRect = imgTrafo.transform(data.zoomArea); | |
1332 // correct offset because background is relative | |
1333 bgRect.addPosition(scalerPos.neg()); | |
1334 // position background | |
1335 scalerCss['background-position'] = Math.round(bgRect.x) + 'px '+ Math.round(bgRect.y) + 'px'; | |
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|
1336 } |
746
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1337 if (data.hasBgSize) { |
1015 | 1338 // scale background using CSS3-background-size |
1339 if (bgRect != null && (bgRect.height < data.settings.maxBgSize && bgRect.width < data.settings.maxBgSize)) { | |
1340 scalerCss[data.bgSizeName] = Math.round(bgRect.width) + 'px ' + Math.round(bgRect.height) + 'px'; | |
1341 } else { | |
1342 scalerCss[data.bgSizeName] = 'auto'; | |
1343 } | |
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diff
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|
1344 // additional full-size background using CSS3 |
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1345 fullRect = imgTrafo.transform(FULL_AREA); |
746
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|
1346 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) { |
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|
1347 // 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
|
1348 fullRect.addPosition(scalerPos.neg()); |
954 | 1349 var url = getPreviewImgUrl(data); |
950
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|
1350 // add second background url, size and position |
918
f7869186ccb2
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|
1351 scalerCss['background-image'] += ', url(' + url + ')'; |
950
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|
1352 scalerCss[data.bgSizeName] += ', ' + Math.round(fullRect.width) + 'px ' + Math.round(fullRect.height) + 'px'; |
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1353 scalerCss['background-position'] += ', ' + Math.round(fullRect.x) + 'px '+ Math.round(fullRect.y) + 'px'; |
746
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|
1354 } |
918
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1355 } |
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|
1356 $scaler.css(scalerCss); |
942 | 1357 data.hasPreviewBg = true; |
929
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
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diff
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|
1358 }; |
1015 | 1359 |
949 | 1360 /** setup handlers for dragging the zoomed image. |
1361 * | |
1362 */ | |
705 | 1363 var setupZoomDrag = function(data) { |
942 | 1364 var startPos, delta; |
733 | 1365 var $document = $(document); |
795 | 1366 var $data = $(data); |
705 | 1367 var $elem = data.$elem; |
1368 var $scaler = data.$scaler; | |
1369 var $img = data.$img; | |
710 | 1370 |
733 | 1371 // drag the image and load a new detail on mouse up |
705 | 1372 var dragStart = function (evt) { |
1015 | 1373 // cancel if not left-click |
1374 if (evt.which != 1) return; | |
813 | 1375 console.debug("dragstart at=", evt); |
737
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
736
diff
changeset
|
1376 // don't start dragging if not zoomed |
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
736
diff
changeset
|
1377 if (isFullArea(data.zoomArea)) return false; |
813 | 1378 $elem.find(".overlay").hide(); // hide all overlays (marks/regions) |
733 | 1379 startPos = geom.position(evt); |
741 | 1380 delta = null; |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1381 // set low res background immediately on mousedown |
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1382 setPreviewBg(data); |
917 | 1383 $document.on("mousemove.dlZoomDrag", dragMove); |
1384 $document.on("mouseup.dlZoomDrag", dragEnd); | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1385 return false; |
705 | 1386 }; |
745
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1387 |
733 | 1388 // mousemove handler: drag zoomed image |
705 | 1389 var dragMove = function (evt) { |
1390 var pos = geom.position(evt); | |
741 | 1391 delta = startPos.delta(pos); |
807
1b1728926534
geometry: overlapsRect() plus some comment clarifications
hertzhaft
parents:
799
diff
changeset
|
1392 // send message event with current zoom position |
745
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1393 var za = geom.rectangle($img); |
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1394 za.addPosition(delta.neg()); |
947 | 1395 // transform back |
1396 var newArea = data.imgTrafo.invtransform(za); | |
1397 $data.trigger('changeZoomArea', newArea); | |
705 | 1398 return false; |
1399 }; | |
710 | 1400 |
733 | 1401 // mouseup handler: reload zoomed image in new position |
705 | 1402 var dragEnd = function (evt) { |
739 | 1403 $scaler.css('cursor', 'auto'); |
917 | 1404 $document.off("mousemove.dlZoomDrag", dragMove); |
1405 $document.off("mouseup.dlZoomDrag", dragEnd); | |
733 | 1406 if (delta == null || delta.distance() < 2) { |
1407 // no movement | |
1408 $img.css('visibility', 'visible'); | |
741 | 1409 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
944 | 1410 data.hasPreviewBg = false; |
993 | 1411 // unhide marks etc. |
1412 updateDisplay(data); | |
733 | 1413 return false; |
1414 } | |
1415 // get old zoom area (screen coordinates) | |
741 | 1416 var za = geom.rectangle($img); |
733 | 1417 // move |
741 | 1418 za.addPosition(delta.neg()); |
733 | 1419 // transform back |
1420 var newArea = data.imgTrafo.invtransform(za); | |
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1421 data.zoomArea = FULL_AREA.fit(newArea); |
708
120ace160386
img reload works for fullscreen, but somehow not precise
hertzhaft
parents:
707
diff
changeset
|
1422 redisplay(data); |
705 | 1423 return false; |
1424 }; | |
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1425 |
733 | 1426 // clear old handler |
917 | 1427 $document.off(".dlZoomDrag"); |
1428 $scaler.off(".dlZoomDrag"); | |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1429 if (! isFullArea(data.zoomArea)) { |
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1430 // set handler |
917 | 1431 $scaler.on("mousedown.dlZoomDrag", dragStart); |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1432 } |
705 | 1433 }; |
1434 | |
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1435 /** set the zoom area. |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1436 * also triggers "changeZoomArea" event. |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1437 */ |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1438 var setZoomArea = function(data, za) { |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1439 $(data).trigger('changeZoomArea', za); |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1440 data.oldZoomArea = data.zoomArea; |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1441 data.zoomArea = za; |
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1442 }; |
1012 | 1443 |
949 | 1444 /** get image quality as a number (0..2). |
1445 * | |
1446 */ | |
703 | 1447 var getQuality = function (data) { |
1448 var flags = data.scalerFlags; | |
1449 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
1450 return parseInt(q[1], 10); | |
706 | 1451 }; |
703 | 1452 |
949 | 1453 /** set image quality as a number (0..2). |
1454 * | |
1455 */ | |
703 | 1456 var setQuality = function (data, qual) { |
1457 var flags = data.scalerFlags; | |
1458 // clear flags | |
1459 for (var i = 0; i < 3; ++i) { | |
1460 delete flags['q'+i]; | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1461 } |
703 | 1462 flags['q'+qual] = 'q'+qual; |
706 | 1463 }; |
710 | 1464 |
949 | 1465 /** get 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 getScaleMode = function (data) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1469 if (data.scalerFlags.clip != null) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1470 return 'pixel'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1471 } else if (data.scalerFlags.osize != null) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1472 return 'size'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1473 } |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1474 // mo=fit is default |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1475 return 'screen'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1476 }; |
775 | 1477 |
949 | 1478 /** set image scale mode (screen, pixel, size). |
1479 * | |
1480 */ | |
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1481 var setScaleMode = function (data, mode) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1482 delete data.scalerFlags.fit; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1483 delete data.scalerFlags.clip; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1484 delete data.scalerFlags.osize; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1485 if (mode === 'pixel') { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1486 data.scalerFlags.clip = 'clip'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1487 } else if (mode === 'size') { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1488 data.scalerFlags.osize = 'osize'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1489 } |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1490 // mo=fit is default |
972 | 1491 // save mode |
1492 data.scaleMode = mode; | |
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1493 }; |
775 | 1494 |
972 | 1495 /** get screen fit mode (width, height, both). |
1496 * | |
1497 */ | |
1498 var getFitMode = function (data) { | |
1015 | 1499 if (data.dlOpts.fitwidth != null) { |
1500 return "width"; | |
1501 } else if (data.dlOpts.fitheight != null) { | |
1502 return "height"; | |
1503 } | |
1504 // "both" is default | |
1505 return "both"; | |
972 | 1506 }; |
1012 | 1507 |
972 | 1508 /** |
1509 * set screen fit mode (width, height, both). | |
1510 */ | |
1511 var setFitMode = function (data, mode) { | |
984 | 1512 var settings = data.settings; |
1012 | 1513 var imgSize = data.maxImgSize; |
1015 | 1514 if (mode === 'width') { |
1515 data.dlOpts.fitwidth = 1; | |
1516 delete data.dlOpts.fitheight; | |
1517 if (imgSize != null) { | |
1518 // fitwidth omits destination height | |
1519 settings.dw = imgSize.width; | |
1520 settings.dh = null; | |
1521 } | |
1522 } else if (mode === 'height') { | |
1523 data.dlOpts.fitheight = 1; | |
1524 delete data.dlOpts.fitwidth; | |
984 | 1525 if (imgSize != null) { |
1526 // fitheight omits destination width | |
1527 settings.dw = null; | |
1528 settings.dh = imgSize.height; | |
1529 } | |
1015 | 1530 } else { |
1531 delete data.dlOpts.fitwidth; | |
1532 delete data.dlOpts.fitheight; | |
984 | 1533 if (imgSize != null) { |
1534 settings.dw = imgSize.width; | |
1535 settings.dh = imgSize.height; | |
1536 } | |
1015 | 1537 } |
972 | 1538 }; |
1015 | 1539 |
949 | 1540 /** sets a key to a value (relative values with +/- if relative=true). |
1541 * | |
1542 */ | |
650 | 1543 var setNumValue = function(settings, key, value) { |
716 | 1544 if (value == null) return null; |
955
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1545 if (isNumber(value)) { |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1546 settings[key] = value; |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1547 return value; |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1548 } |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1549 var sign = value[0]; |
650 | 1550 if (sign === '+' || sign === '-') { |
1551 if (settings[key] == null) { | |
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1552 // this isn't perfect but still... |
650 | 1553 settings[key] = 0; |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1554 } |
650 | 1555 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
1556 } else { | |
1557 settings[key] = value; | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1558 } |
650 | 1559 return settings[key]; |
1560 }; | |
655 | 1561 |
949 | 1562 /** return width of border on $elem. |
1563 * assumes equal border width on all sides. | |
1564 */ | |
775 | 1565 var getBorderWidth = function($elem) { |
1566 var border = $elem.outerWidth() - $elem.width(); | |
1567 return border/2; | |
1568 }; | |
1569 | |
949 | 1570 /** return if the current zoomarea can be moved further. |
1571 * | |
1572 */ | |
878 | 1573 var canMove = function(data, movx, movy) { |
1574 var za = data.zoomArea; | |
1575 if (isFullArea(za)) return false; | |
1576 var x2 = za.x + za.width; | |
1577 var y2 = za.y + za.height; | |
949 | 1578 return (((movx < 0) && (za.x > 0)) |
878 | 1579 || ((movx > 0) && (x2 < 1.0)) |
1580 || ((movy < 0) && (za.y > 0)) | |
949 | 1581 || ((movy > 0) && (y2 < 1.0))); |
878 | 1582 }; |
1583 | |
949 | 1584 /** return if area is maximal. |
1585 * | |
1586 */ | |
795 | 1587 var isFullArea = function (area) { |
659 | 1588 return (area.width === 1.0) && (area.height === 1.0); |
655 | 1589 }; |
1590 | |
955
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1591 /** 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
|
1592 * from Douglas Crockford, A.10. |
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1593 * this is different from $.isNumeric(). |
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1594 */ |
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1595 var isNumber = function (value) { |
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1596 return typeof value === 'number' && isFinite(value); |
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1597 }; |
949 | 1598 /** return number with reduced precision. |
1599 * ("crop senseless precision") | |
1600 */ | |
631 | 1601 var cropFloat = function (x) { |
637 | 1602 return parseInt(10000 * x, 10) / 10000; |
631 | 1603 }; |
655 | 1604 |
949 | 1605 /** return string from number with reduced precision. |
1606 * | |
1607 */ | |
813 | 1608 var cropFloatStr = function (x) { |
1609 return cropFloat(x).toString(); | |
1610 }; | |
1611 | |
1021 | 1612 var centerOnScreen = function (data, $div) { |
1613 var r = geom.rectangle($div); | |
1614 var s = fn.getFullscreenRect(data); | |
1615 r.setCenter(s.getCenter()); | |
1616 r.adjustDiv($div); | |
1617 }; | |
1618 | |
692 | 1619 // fallback for console.log calls |
1620 if (customConsole) { | |
1621 var logFunction = function(type) { | |
1622 return function(){ | |
996 | 1623 var $debug = $('#'+defaults.cssPrefix+'debug'); // debug div |
692 | 1624 if (!$debug) return; |
1625 var args = Array.prototype.slice.call(arguments); | |
1626 var argtext = args.join(' '); | |
1627 var $logDiv = $('<div/>'); | |
1628 $logDiv.addClass(type); | |
1629 $logDiv.text(argtext); | |
1630 $debug.append($logDiv); | |
1631 }; | |
1632 }; | |
1633 console.log = logFunction('_log'); | |
1634 console.debug = logFunction('_debug'); | |
1635 console.error = logFunction('_error'); | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1636 } |
692 | 1637 |
949 | 1638 /** functions to export to plugins. |
1639 */ | |
787 | 1640 fn = { |
791 | 1641 geometry : geom, |
787 | 1642 parseQueryString : parseQueryString, |
1643 getScalerUrl : getScalerUrl, | |
1644 getParamString : getParamString, | |
1645 getDigilibUrl : getDigilibUrl, | |
1646 unpackParams : unpackParams, | |
1647 packParams : packParams, | |
822 | 1648 packArea : packArea, |
1649 packScalerFlags : packScalerFlags, | |
795 | 1650 storeOptions : storeOptions, |
787 | 1651 redisplay : redisplay, |
1652 updateDisplay : updateDisplay, | |
791 | 1653 showDiv : showDiv, |
983 | 1654 setZoomArea : setZoomArea, |
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1655 setPreviewBg : setPreviewBg, |
787 | 1656 getImgTrafo : getImgTrafo, |
1657 getQuality : getQuality, | |
1658 setQuality : setQuality, | |
1659 getScaleMode : getScaleMode, | |
1660 setScaleMode : setScaleMode, | |
972 | 1661 getFitMode : getFitMode, |
1662 setFitMode : setFitMode, | |
878 | 1663 canMove : canMove, |
795 | 1664 isFullArea : isFullArea, |
978 | 1665 isNumber : isNumber, |
974 | 1666 getFullscreenRect : getFullscreenRect, |
813 | 1667 getBorderWidth : getBorderWidth, |
1668 cropFloat : cropFloat, | |
1021 | 1669 cropFloatStr : cropFloatStr, |
1670 centerOnScreen : centerOnScreen | |
787 | 1671 }; |
788 | 1672 |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1673 // hook digilib plugin into jquery |
785 | 1674 $.fn.digilib = function (action) { |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1675 // plugin extension mechanism, called when the plugins' code is read |
786 | 1676 if (action === 'plugin') { |
1677 var plugin = arguments[1]; | |
1678 // each plugin needs a name | |
1679 if (plugin.name != null) { | |
1680 plugins[plugin.name] = plugin; | |
793
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1681 // share common objects |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1682 plugin.defaults = defaults; |
947 | 1683 plugin.buttons = buttons; |
793
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1684 plugin.actions = actions; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1685 plugin.fn = fn; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1686 plugin.plugins = plugins; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1687 // and install |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1688 if (typeof plugin.install === 'function') { |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1689 plugin.install(plugin); |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1690 } |
786 | 1691 } |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1692 // plugins will be initialised when action.init is called |
760
f0be4432f515
primitive plugin extension mechanism - unsure how useful this is
hertzhaft
parents:
755
diff
changeset
|
1693 } else if (actions[action]) { |
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1694 // call action on this with the remaining arguments (inserting data as first argument) |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1695 var $elem = $(this); |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1696 var data = $elem.data('digilib'); |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1697 var args = Array.prototype.slice.call(arguments, 1); |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1698 args.unshift(data); |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1699 return actions[action].apply(this, args); |
798
b07d1824ca2a
fullscreen mode works without reload on browsers supporting history.pushstate!
robcast
parents:
797
diff
changeset
|
1700 } else if (typeof action === 'object' || !action) { |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1701 // call init on the digilib jQuery object |
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1702 return actions.init.apply(this, arguments); |
605 | 1703 } else { |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1704 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1705 } |
605 | 1706 }; |
692 | 1707 |
991
497ab03868ab
moved marks to separate plugin. (pack and unpack is still in digilib.js)
robcast
parents:
990
diff
changeset
|
1708 })(jQuery); |