Mercurial > hg > digilib-old
annotate webapp/src/main/webapp/jquery/jquery.digilib.js @ 1021:9aa282ceec8a
move sliders out of buttons plugin
| author | hertzhaft |
|---|---|
| date | Wed, 29 Feb 2012 11:28:42 +0100 |
| parents | 0eedb4a5b674 |
| children | e077f52205a7 |
| 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) { |
| 917 | 339 data.zoomArea = FULL_AREA.copy(); |
| 972 | 340 setFitMode(data, mode); |
| 341 // zoom full only works in screen mode | |
| 342 setScaleMode(data, 'screen'); | |
| 1010 | 343 data.settings.isBirdDivVisible = false; |
| 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 } |
|
735
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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; | |
| 709 | 462 settings.isBirdDivVisible = false; |
| 946 | 463 settings.visibleButtonSets = 1; // FIXME |
|
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464 // resets zoomArea, marks, scalerflags |
| 917 | 465 data.zoomArea = FULL_AREA.copy(); |
|
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466 data.marks = []; |
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467 data.scalerFlags = {}; |
| 712 | 468 delete data.dlOpts.fitwidth; |
| 469 delete data.dlOpts.fitheight; | |
| 986 | 470 data.scaleMode = 'screen'; |
| 688 | 471 redisplay(data); |
| 689 | 472 }, |
| 473 | |
| 954 | 474 /** presents a reference url (returns value if noprompt) |
| 475 * | |
| 476 * @param data | |
| 477 * @param noprompt | |
| 478 * @returns | |
| 479 */ | |
| 703 | 480 reference : function (data, noprompt) { |
| 744 | 481 var url = getDigilibUrl(data); |
| 703 | 482 if (noprompt == null) { |
| 483 window.prompt("URL reference to the current view", url); | |
| 1011 | 484 // return nothing so we can use is in javascript: url without reload |
| 485 return; | |
| 703 | 486 } |
| 487 return url; | |
| 488 }, | |
| 710 | 489 |
| 1011 | 490 /** |
| 491 * Returns URL to the full digilib.html with the current parameters. | |
| 492 * Redirects immediately with mode=open. | |
| 493 * | |
| 494 * @param data | |
| 495 * @param mode | |
| 496 */ | |
| 497 digilibUrl : function (data, mode) { | |
| 498 var url = getDigilibUrl(data, '/jquery/digilib.html'); | |
| 499 if (mode === 'open') { | |
| 500 // redirect | |
| 501 window.location = url; | |
| 502 } else if (mode === 'open_new') { | |
| 503 // open new window | |
| 504 window.open(url); | |
| 505 return; | |
| 506 } | |
| 507 return url; | |
| 508 }, | |
| 509 | |
| 510 | |
| 954 | 511 /** set image quality |
| 512 * | |
| 513 * @param data | |
| 514 * @param qual | |
| 515 */ | |
| 748 | 516 setQuality : function (data, qual) { |
| 703 | 517 var oldq = getQuality(data); |
| 518 if (qual == null) { | |
| 519 qual = window.prompt("Image quality (0..2)", oldq); | |
| 520 } | |
| 521 qual = parseInt(qual, 10); | |
| 522 if (qual >= 0 && qual <= 2) { | |
| 523 setQuality(data, qual); | |
| 524 redisplay(data); | |
| 525 } | |
|
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526 }, |
|
760
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527 |
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528 /** set image size |
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529 * |
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530 * @param data |
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531 * @param size |
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532 */ |
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533 setSize : function (data, size) { |
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534 var olds = data.settings.ws; |
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535 if (size == null) { |
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536 size = window.prompt("Image size (1=screen size)", olds); |
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537 } |
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538 size = parseFloat(size); |
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539 if (size > 0) { |
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540 data.settings.ws = size; |
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541 redisplay(data); |
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542 } |
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543 }, |
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544 |
|
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545 /** calibrate (set client screen dpi) |
| 954 | 546 * |
| 547 * @param data | |
| 548 * @param res | |
| 549 */ | |
|
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550 calibrate : function (data, res) { |
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551 var oldRes = data.settings.ddpi; |
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552 if (res == null) { |
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553 res = window.prompt("Display resolution (dpi)", oldRes); |
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554 } |
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555 if (res != null) { |
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556 data.settings.ddpi = res; |
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557 redisplay(data); |
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558 } |
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559 }, |
| 775 | 560 |
| 954 | 561 /** set image scale mode |
| 562 * | |
| 563 * @param data | |
| 564 * @param mode | |
| 565 */ | |
|
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566 setScaleMode : function (data, mode) { |
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567 var oldM = getScaleMode(data); |
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568 if (mode == null) { |
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569 mode = window.prompt("Image scale mode (screen, pixel, size)", oldM); |
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570 } |
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571 if (mode != null) { |
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572 setScaleMode(data, mode); |
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573 redisplay(data); |
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574 } |
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575 } |
|
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|
576 // end of actions |
| 605 | 577 }; |
| 604 | 578 |
| 954 | 579 /** return parameters from page url |
| 580 * | |
| 581 */ | |
| 607 | 582 var parseQueryParams = function() { |
| 636 | 583 return parseQueryString(window.location.search.slice(1)); |
| 584 }; | |
| 655 | 585 |
| 984 | 586 /** |
| 587 * returns parameters from embedded img-element | |
| 954 | 588 * |
| 589 */ | |
| 607 | 590 var parseImgParams = function($elem) { |
|
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|
591 var src = $elem.find('img').first().attr('src'); |
| 710 | 592 if (!src) return null; |
| 607 | 593 var pos = src.indexOf('?'); |
| 594 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 595 var scalerUrl = src.substring(0, pos); | |
| 627 | 596 var params = parseQueryString(query); |
| 597 params.scalerBaseUrl = scalerUrl; | |
| 598 return params; | |
| 636 | 599 }; |
| 607 | 600 |
| 984 | 601 /** |
| 602 * parses query parameter string into parameter object | |
| 954 | 603 * |
| 604 */ | |
| 607 | 605 var parseQueryString = function(query) { |
| 701 | 606 var params = {}; |
| 607 if (query == null) return params; | |
| 607 | 608 var pairs = query.split("&"); |
| 636 | 609 //var keys = []; |
| 607 | 610 for (var i = 0; i < pairs.length; i++) { |
| 611 var pair = pairs[i].split("="); | |
| 612 if (pair.length === 2) { | |
| 627 | 613 params[pair[0]] = pair[1]; |
| 636 | 614 //keys.push(pair[0]); |
| 634 | 615 } |
| 636 | 616 } |
| 627 | 617 return params; |
| 636 | 618 }; |
| 668 | 619 |
| 984 | 620 /** |
| 621 * return a query string from key names from a parameter hash | |
| 954 | 622 * (ignores keys if the same value is in defaults) |
| 623 * | |
| 624 */ | |
| 643 | 625 var getParamString = function (settings, keys, defaults) { |
| 615 | 626 var paramString = ''; |
| 650 | 627 var nx = false; |
|
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628 for (var i = 0; i < keys.length; ++i) { |
| 615 | 629 var key = keys[i]; |
| 663 | 630 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 615 | 631 // first param gets no '&' |
| 650 | 632 if (nx) { |
| 633 paramString += '&'; | |
| 634 } else { | |
| 635 nx = true; | |
| 636 } | |
| 615 | 637 // add parm=val |
| 638 paramString += key + '=' + settings[key]; | |
| 643 | 639 } |
| 615 | 640 } |
| 641 return paramString; | |
| 631 | 642 }; |
| 643 | |
| 984 | 644 /** |
| 645 * returns URL and query string for Scaler | |
| 954 | 646 */ |
| 636 | 647 var getScalerUrl = function (data) { |
| 741 | 648 packParams(data); |
| 653 | 649 var settings = data.settings; |
| 652 | 650 if (settings.scalerBaseUrl == null) { |
| 651 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
|
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652 } |
| 636 | 653 var keys = settings.scalerParamNames; |
| 643 | 654 var queryString = getParamString(settings, keys, defaults); |
| 636 | 655 var url = settings.scalerBaseUrl + '?' + queryString; |
| 656 return url; | |
| 657 }; | |
| 658 | |
| 954 | 659 /** returns URL for preview background image |
| 660 * | |
| 661 */ | |
| 662 var getPreviewImgUrl = function (data, moreParams) { | |
| 741 | 663 var settings = data.settings; |
| 795 | 664 var bgOptions = { |
| 954 | 665 dw : settings.previewImgWidth, |
| 666 dh : settings.previewImgHeight | |
| 741 | 667 }; |
| 795 | 668 var bgSettings = $.extend({}, settings, bgOptions); |
| 931 | 669 // filter scaler flags (use only hmir and vmir) |
| 795 | 670 if (bgSettings.mo != null) { |
| 671 var mo = ''; | |
| 672 if (data.scalerFlags.hmir != null) { | |
| 673 mo += 'hmir,'; | |
| 767 | 674 } |
| 795 | 675 if (data.scalerFlags.vmir != null) { |
| 676 mo += 'vmir'; | |
| 677 } | |
| 678 bgSettings.mo = mo; | |
| 743 | 679 } |
| 954 | 680 var params = getParamString(bgSettings, settings.previewImgParamNames, defaults); |
| 743 | 681 var url = settings.scalerBaseUrl + '?' + params; |
| 741 | 682 return url; |
| 683 }; | |
|
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|
684 |
| 1011 | 685 /** |
| 686 * returns URL and query string for current digilib. | |
| 687 * if digilibPage != null returns URL to page in digilib installation with digilib parameters, | |
| 688 * otherwise using current URL and parameters. | |
| 954 | 689 * |
| 690 */ | |
| 1011 | 691 var getDigilibUrl = function (data, digilibPage) { |
| 643 | 692 packParams(data); |
| 636 | 693 var settings = data.settings; |
| 1011 | 694 var paramList = settings.digilibParamNames; |
| 695 if (digilibPage != null) { | |
| 696 var baseUrl = data.settings.digilibBaseUrl + digilibPage; | |
| 697 } else { | |
| 698 paramList = settings.additionalParamNames.concat(settings.digilibParamNames); | |
| 699 if (settings.suppressParamNames != null) { | |
| 700 // eliminate suppressed parameters from list | |
| 701 paramList = $.map(paramList, function(e, idx) { | |
| 702 if ($.inArray(e, settings.suppressParamNames) >= 0) { | |
| 703 return null; | |
| 704 } else { | |
| 705 return e; | |
| 706 } | |
| 707 }); | |
| 708 } | |
| 709 // take url from current location | |
| 710 var baseUrl = window.location.href; | |
| 711 var pos = baseUrl.indexOf('?'); | |
| 712 if (pos > -1) { | |
| 713 baseUrl = baseUrl.substring(0, pos); | |
| 714 } | |
|
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|
715 } |
| 1007 | 716 var queryString = getParamString(settings, paramList, defaults); |
| 1011 | 717 return baseUrl + '?' + queryString; |
| 636 | 718 }; |
| 719 | |
| 954 | 720 /** loads image information from digilib server via HTTP |
| 721 * | |
| 722 */ | |
| 797 | 723 var loadImageInfo = function (data) { |
|
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|
724 var settings = data.settings; |
| 917 | 725 // bind default function (only once) |
| 726 $(data).off('imageInfo', handleImageInfo); | |
| 727 $(data).on('imageInfo', handleImageInfo); | |
| 728 var url = settings.digilibBaseUrl + '/ImgInfo-json.jsp'; | |
|
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|
729 url += '?' + getParamString(settings, ['fn', 'pn'], defaults); |
| 767 | 730 // TODO: better error handling |
| 785 | 731 $.getJSON(url, function (json) { |
|
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732 console.debug("got json data=", json); |
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|
733 data.imgInfo = json; |
| 797 | 734 // send event |
| 735 $(data).trigger('imageInfo', [json]); | |
|
754
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736 }); |
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|
737 }; |
| 775 | 738 |
| 954 | 739 /** processes some parameters into objects and stuff |
| 740 * | |
| 741 */ | |
| 631 | 742 var unpackParams = function (data) { |
| 743 var settings = data.settings; | |
| 636 | 744 // zoom area |
| 631 | 745 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 643 | 746 data.zoomArea = zoomArea; |
| 650 | 747 // mo (Scaler flags) |
| 748 var flags = {}; | |
| 749 if (settings.mo) { | |
| 750 var pa = settings.mo.split(","); | |
| 751 for (var i = 0; i < pa.length ; i++) { | |
| 752 flags[pa[i]] = pa[i]; | |
|
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753 } |
|
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754 } |
| 650 | 755 data.scalerFlags = flags; |
|
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|
756 data.scaleMode = getScaleMode(data); |
| 723 | 757 retrieveOptions(data); |
| 655 | 758 }; |
| 759 | |
| 954 | 760 /** put area into parameters |
| 761 * | |
| 762 */ | |
| 822 | 763 var packArea = function (settings, area) { |
| 764 if (!area) return; | |
| 765 // zoom area | |
| 766 settings.wx = cropFloat(area.x); | |
| 767 settings.wy = cropFloat(area.y); | |
| 768 settings.ww = cropFloat(area.width); | |
| 769 settings.wh = cropFloat(area.height); | |
| 770 }; | |
| 771 | |
| 954 | 772 /** pack scaler flags into parameters |
| 773 * | |
| 774 */ | |
| 822 | 775 var packScalerFlags = function (settings, flags) { |
| 776 if (!flags) return; | |
| 777 var mo = ''; | |
| 778 for (var f in flags) { | |
| 779 if (mo) { | |
| 780 mo += ','; | |
| 781 } | |
| 782 mo += f; | |
| 783 } | |
| 784 settings.mo = mo; | |
| 785 }; | |
| 786 | |
| 954 | 787 /** put objects back into parameters |
| 788 * | |
| 789 */ | |
| 631 | 790 var packParams = function (data) { |
| 791 var settings = data.settings; | |
| 822 | 792 packArea(settings, data.zoomArea); |
| 793 packScalerFlags(settings, data.scalerFlags); | |
| 794 // store user interface options in cookie | |
| 723 | 795 storeOptions(data); |
|
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|
796 // trigger pack handlers |
|
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|
797 $(data).trigger('pack'); |
| 709 | 798 }; |
| 688 | 799 |
| 954 | 800 /** store digilib options in a cookie |
| 801 * | |
| 802 */ | |
| 723 | 803 var storeOptions = function (data) { |
| 709 | 804 var settings = data.settings; |
| 805 if (data.dlOpts) { | |
| 806 // save digilib settings in options | |
| 807 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
| 808 data.dlOpts.buttons = settings.visibleButtonSets; | |
| 809 var clop = ''; | |
| 810 for (var o in data.dlOpts) { | |
| 811 if (clop) { | |
| 812 clop += '&'; | |
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813 } |
| 709 | 814 clop += o + '=' + data.dlOpts[o]; |
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|
815 } |
| 785 | 816 if ($.cookie) { |
| 709 | 817 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; |
| 818 console.debug("set cookie=", ck, " value=", clop); | |
| 785 | 819 $.cookie(ck, clop); |
|
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820 } |
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|
821 } |
| 785 | 822 if (settings.interactionMode !== 'fullscreen' && $.cookie) { |
| 727 | 823 // store normal parameters in cookie for embedded mode |
| 824 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
| 825 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 826 console.debug("set cookie=", ck, " value=", qs); | |
| 785 | 827 $.cookie(ck, qs); |
| 727 | 828 } |
| 631 | 829 }; |
| 655 | 830 |
| 983 | 831 /** retrieve digilib options from a cookie |
| 954 | 832 * |
| 833 */ | |
| 723 | 834 var retrieveOptions = function (data) { |
| 709 | 835 // clop (digilib options) |
| 836 var opts = {}; | |
| 837 var settings = data.settings; | |
| 785 | 838 if ($.cookie) { |
| 709 | 839 // read from cookie |
| 840 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 785 | 841 var cp = $.cookie(ck); |
| 709 | 842 console.debug("get cookie=", ck, " value=", cp); |
| 843 // in query string format | |
| 844 opts = parseQueryString(cp); | |
|
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|
845 } |
| 709 | 846 data.dlOpts = opts; |
| 847 // birdview option | |
| 848 if (opts.birdview != null) { | |
| 849 settings.isBirdDivVisible = opts.birdview === '1'; | |
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|
850 } |
| 709 | 851 // visible button sets |
| 852 if (opts.buttons != null) { | |
| 853 settings.visibleButtonSets = opts.buttons; | |
|
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|
854 } |
| 711 | 855 }; |
| 709 | 856 |
| 949 | 857 /** (re)load the image with the current settings. |
| 858 * | |
| 859 */ | |
|
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|
860 var redisplay = function (data) { |
| 636 | 861 var settings = data.settings; |
| 862 if (settings.interactionMode === 'fullscreen') { | |
| 863 // update location.href (browser URL) in fullscreen mode | |
|
644
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|
864 var url = getDigilibUrl(data); |
| 636 | 865 var history = window.history; |
| 942 | 866 if (data.hasAsyncReload) { |
|
798
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|
867 console.debug("faking reload to "+url); |
|
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|
868 // change url without reloading (stateObj, title, url) |
|
890
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|
869 // TODO: we really need to push the state in stateObj and listen to pop-events |
|
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|
870 try { |
| 1015 | 871 history.replaceState({}, '', url); |
| 872 // show busy cursor | |
| 873 $('body').css('cursor', 'progress'); | |
| 874 data.$scaler.css('cursor', 'progress'); | |
| 875 // change img src | |
| 876 var $img = data.$img; | |
| 877 var imgurl = getScalerUrl(data); | |
| 878 $img.attr('src', imgurl); | |
| 879 // trigger load event if image is cached. Doesn't work with Firefox!! | |
| 880 if (data.hasCachedComplete && $img.prop('complete')) { | |
| 881 console.debug("cached img.load"); | |
| 882 $img.trigger('load'); | |
| 883 } | |
| 884 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { | |
| 885 // we need image info, do we have it? | |
| 886 if (data.imgInfo == null) { | |
| 887 loadImageInfo(data); | |
| 888 } | |
| 889 } | |
| 890 // update if we have a preview | |
| 891 if (data.hasPreviewBg) { | |
| 892 $(data).trigger('update'); | |
| 893 } | |
| 894 //FIXME: highlightButtons(data); | |
| 895 // send event | |
| 896 $(data).trigger('redisplay'); | |
|
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897 } catch (e) { |
| 1015 | 898 console.error("replaceState("+url+") didn't work: "+e); |
|
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899 // reload window |
|
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900 window.location = url; |
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|
901 } |
|
798
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|
902 } else { |
|
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|
903 // reload window |
|
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changeset
|
904 window.location = url; |
|
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|
905 } |
| 636 | 906 } else { |
| 907 // embedded mode -- just change img src | |
| 1015 | 908 // show busy cursor |
| 909 $('body').css('cursor', 'progress'); | |
| 910 data.$scaler.css('cursor', 'progress'); | |
| 911 var $img = data.$img; | |
| 636 | 912 var url = getScalerUrl(data); |
| 949 | 913 $img.attr('src', url); |
| 1015 | 914 // trigger load event if image is cached |
| 915 if ($img.prop('complete')) $img.trigger('load'); | |
| 916 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { | |
| 917 // we need image info, do we have it? | |
| 918 if (data.imgInfo == null) { | |
| 919 loadImageInfo(data); | |
| 920 } | |
| 921 } | |
| 949 | 922 //FIXME: highlightButtons(data); |
| 795 | 923 // send event |
| 924 $(data).trigger('redisplay'); | |
|
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|
925 } |
| 622 | 926 }; |
| 927 | |
| 949 | 928 /** update display (overlays etc.) |
| 929 * (just triggers "update" event) | |
| 930 */ | |
| 767 | 931 var updateDisplay = function (data) { |
| 947 | 932 // send event |
| 933 $(data).trigger('update'); | |
| 934 }; | |
| 935 | |
| 949 | 936 /** handle "update" display event. |
|
991
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moved marks to separate plugin. (pack and unpack is still in digilib.js)
robcast
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diff
changeset
|
937 * updates image transform, etc. |
| 949 | 938 */ |
| 947 | 939 var handleUpdate = function (evt) { |
| 1015 | 940 var data = this; |
| 767 | 941 updateImgTrafo(data); |
| 942 setupZoomDrag(data); | |
| 943 }; | |
| 974 | 944 |
| 984 | 945 /** |
| 946 * returns maximum size for scaler img in fullscreen mode. | |
| 949 | 947 */ |
| 778 | 948 var getFullscreenImgSize = function (data) { |
|
989
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|
949 //var mode = data.settings.interactionMode; |
| 662 | 950 var $win = $(window); |
| 951 var winH = $win.height(); | |
| 779 | 952 var winW = $win.width(); |
|
989
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|
953 // add all current insets |
|
991
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|
954 // accounting for left/right border, body margins and additional requirements |
|
989
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|
955 var insets = { 'x' : 0, 'y' : 0}; |
|
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|
956 for (var n in data.currentInsets) { |
|
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957 insets.x += data.currentInsets[n].x; |
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|
958 insets.y += data.currentInsets[n].y; |
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|
959 }; |
|
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|
960 var imgW = winW - insets.x; |
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|
961 var imgH = winH - insets.y; |
| 998 | 962 console.debug('getFullscreenImgSize - screen w/h:', winW, winH, 'window.width', $win.width(), 'img w/h:', imgW, imgH); |
|
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|
963 return geom.size(imgW, imgH); |
| 662 | 964 }; |
| 965 | |
| 984 | 966 /** |
| 967 * returns a rectangle.with the fullscreen dimensions | |
| 974 | 968 */ |
| 969 var getFullscreenRect = function (data) { | |
| 970 return geom.rectangle(getFullscreenImgSize(data)); | |
| 971 }; | |
| 972 | |
| 984 | 973 /** |
| 974 * creates HTML structure for digilib in elem | |
| 949 | 975 */ |
| 627 | 976 var setupScalerDiv = function (data) { |
| 977 var settings = data.settings; | |
| 647 | 978 var $elem = data.$elem; |
| 996 | 979 var cssPrefix = settings.cssPrefix; |
| 980 $elem.addClass(cssPrefix+'digilib'); | |
| 728 | 981 var $img; |
| 982 var scalerUrl; | |
| 608 | 983 if (settings.interactionMode === 'fullscreen') { |
| 728 | 984 // fullscreen |
| 995 | 985 $elem.addClass(cssPrefix+'fullscreen'); |
| 778 | 986 var imgSize = getFullscreenImgSize(data); |
| 1012 | 987 data.maxImgSize = imgSize; |
| 650 | 988 // fitwidth/height omits destination height/width |
| 728 | 989 if (data.dlOpts.fitheight == null) { |
| 650 | 990 settings.dw = imgSize.width; |
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991 } |
| 728 | 992 if (data.dlOpts.fitwidth == null) { |
| 650 | 993 settings.dh = imgSize.height; |
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994 } |
| 686 | 995 scalerUrl = getScalerUrl(data); |
| 728 | 996 $img = $('<img/>'); |
| 609 | 997 } else { |
| 728 | 998 // embedded mode -- try to keep img tag |
| 1015 | 999 data.maxImgSize = geom.rectangle($elem).getSize(); |
| 995 | 1000 $elem.addClass(cssPrefix+'embedded'); |
| 728 | 1001 scalerUrl = getScalerUrl(data); |
| 623 | 1002 $img = $elem.find('img'); |
|
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1003 if ($img.length > 0) { |
|
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1004 var oldUrl = $img.attr('src'); |
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1005 // keep img attributes from html |
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1006 var title = $img.attr('title'); |
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1007 var alt = $img.attr('alt'); |
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1008 if (oldUrl === scalerUrl) { |
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1009 console.debug("img detach:", $img); |
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1010 $img.detach(); |
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1011 } else { |
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1012 $img = $('<img/>'); |
|
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1013 $img.attr("title", title); |
|
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|
1014 $img.attr("alt", alt); |
| 728 | 1015 } |
|
613
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keeping img tag for embedded mode seems to work now
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diff
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|
1016 } else { |
|
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keeping img tag for embedded mode seems to work now
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|
1017 $img = $('<img/>'); |
|
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|
1018 } |
| 608 | 1019 } |
| 822 | 1020 // create new inner html, keeping buttons and content marked with "keep" class |
| 996 | 1021 $elem.contents(':not(.'+cssPrefix+'keep)').remove(); |
| 995 | 1022 var $scaler = $('<div class="'+cssPrefix+'scaler"/>'); |
| 779 | 1023 // scaler should be the first child element? |
| 1024 $elem.prepend($scaler); | |
|
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|
1025 $scaler.append($img); |
| 995 | 1026 $img.addClass(cssPrefix+'pic'); |
| 649 | 1027 data.$scaler = $scaler; |
| 636 | 1028 data.$img = $img; |
| 947 | 1029 // set busy cursor |
| 1030 $('body').css('cursor','progress'); | |
| 1015 | 1031 data.$scaler.css('cursor', 'progress'); |
| 942 | 1032 // set up image load handler before setting the src attribute (IE bug) |
| 687 | 1033 $img.load(scalerImgLoadedHandler(data)); |
| 767 | 1034 $img.error(function () {console.error("error loading scaler image");}); |
| 687 | 1035 $img.attr('src', scalerUrl); |
| 608 | 1036 }; |
| 615 | 1037 |
| 949 | 1038 /** creates HTML structure for the about view in elem |
| 1039 * | |
| 1040 */ | |
|
628
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changed methods to pass "data" around instead of "settings"
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changeset
|
1041 var setupAboutDiv = function (data) { |
| 647 | 1042 var $elem = data.$elem; |
|
628
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changed methods to pass "data" around instead of "settings"
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|
1043 var settings = data.settings; |
| 996 | 1044 var $aboutDiv = $('<div class="'+settings.cssPrefix+'about" style="display:none"/>'); |
|
886
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make getFullscreenImgSize more robust. put button width in settings.
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|
1045 var $header = $('<p>Digilib Image Viewer</p>'); |
| 616 | 1046 var $link = $('<a/>'); |
| 996 | 1047 var $logo = $('<img class="'+settings.cssPrefix+'logo" title="digilib"/>'); |
| 616 | 1048 var $content = $('<p/>'); |
| 1049 $elem.append($aboutDiv); | |
| 1050 $aboutDiv.append($header); | |
| 1051 $aboutDiv.append($link); | |
| 1052 $aboutDiv.append($content); | |
| 1053 $link.append($logo); | |
|
913
ad071f122164
make dirInfo crash less. make digilib better for half-embedded use.
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|
1054 logoUrl = settings.logoUrl; |
|
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|
1055 // make relative logoUrl absolute |
|
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|
1056 if (logoUrl.charAt(0) !== '/' && logoUrl.substring(0,3) !== 'http') { |
| 1015 | 1057 logoUrl = settings.digilibBaseUrl + '/' + logoUrl; |
|
913
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|
1058 } |
|
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|
1059 $logo.attr('src', logoUrl); |
| 635 | 1060 $link.attr('href', settings.homeUrl); |
| 616 | 1061 $content.text('Version: ' + settings.version); |
| 775 | 1062 data.$aboutDiv = $aboutDiv; |
| 635 | 1063 // click hides |
| 917 | 1064 $aboutDiv.on('click.digilib', function () { |
| 775 | 1065 actions['showAboutDiv'](data, false); |
| 710 | 1066 }); |
| 634 | 1067 }; |
| 1068 | |
| 949 | 1069 /** shows some window e.g. 'about' (toggle visibility if show is null) |
| 1070 * | |
| 1071 */ | |
| 635 | 1072 var showDiv = function (isVisible, $div, show) { |
| 645 | 1073 if (show == null) { |
| 635 | 1074 // toggle visibility |
| 1075 isVisible = !isVisible; | |
| 1076 } else { | |
| 1077 // set visibility | |
| 1078 isVisible = show; | |
|
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|
1079 } |
| 635 | 1080 if (isVisible) { |
| 1081 $div.fadeIn(); | |
| 1082 } else { | |
| 1083 $div.fadeOut(); | |
|
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|
1084 } |
| 635 | 1085 return isVisible; |
| 634 | 1086 }; |
| 616 | 1087 |
| 949 | 1088 /** Create Transform from zoom area and image size and parameters. |
| 1089 * Returns Transform between normalized coordinates and image pixel coordinates. | |
| 1090 */ | |
|
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original size mode works with zoom area now. needs error handling.
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|
1091 var getImgTrafo = function ($img, area, rot, hmir, vmir, mode, data) { |
|
658
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1092 var picrect = geom.rectangle($img); |
| 949 | 1093 // handle pixel-by-pixel and original-size modes |
|
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1094 if (mode != null) { |
|
772
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original size mode works with zoom area now. needs error handling.
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|
1095 var imgInfo = data.imgInfo; |
|
763
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|
1096 if (mode === 'pixel') { |
|
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|
1097 // scaler mo=clip - image area size does not come from ww, wh |
|
31664707999e
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1098 if (imgInfo != null) { |
|
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|
1099 area.width = picrect.width / imgInfo.width; |
|
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|
1100 area.height = picrect.height / imgInfo.height; |
|
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1101 } else { |
|
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|
1102 console.error("No image info for pixel mode!"); |
|
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|
1103 } |
|
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|
1104 } |
|
772
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original size mode works with zoom area now. needs error handling.
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|
1105 if (mode === 'size') { |
|
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original size mode works with zoom area now. needs error handling.
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|
1106 // scaler mo=osize - image area size does not come from ww, wh |
|
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original size mode works with zoom area now. needs error handling.
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|
1107 if (imgInfo != null) { |
|
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|
1108 var ddpi = parseFloat(data.settings.ddpi); |
|
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original size mode works with zoom area now. needs error handling.
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|
1109 area.width = (picrect.width / ddpi) / (imgInfo.width / imgInfo.dpi_x); |
|
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original size mode works with zoom area now. needs error handling.
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|
1110 area.height = (picrect.height / ddpi) / (imgInfo.height / imgInfo.dpi_y); |
|
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original size mode works with zoom area now. needs error handling.
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|
1111 } else { |
|
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|
1112 console.error("No image info for original size mode!"); |
|
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original size mode works with zoom area now. needs error handling.
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|
1113 } |
|
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original size mode works with zoom area now. needs error handling.
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|
1114 } |
|
763
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pixel-by-pixel scale mode works with zoom area. (not in all cases)
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|
1115 } |
|
658
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split bird's view code in two more parts, analog to scaler-img code.
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diff
changeset
|
1116 var trafo = geom.transform(); |
| 675 | 1117 // move zoom area offset to center |
|
658
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diff
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|
1118 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 675 | 1119 // scale zoom area size to [1,1] |
|
658
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diff
changeset
|
1120 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 675 | 1121 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 1122 if (rot || hmir || vmir) { | |
| 1123 // move [0.5,0.5] to center | |
| 1124 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 1125 if (hmir) { | |
| 1126 // mirror about center | |
| 1127 trafo.concat(trafo.getMirror('y')); | |
|
713
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more cosmetics: added options to validate with http://www.jslint.com
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diff
changeset
|
1128 } |
| 675 | 1129 if (vmir) { |
| 1130 // mirror about center | |
| 1131 trafo.concat(trafo.getMirror('x')); | |
|
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more cosmetics: added options to validate with http://www.jslint.com
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diff
changeset
|
1132 } |
| 675 | 1133 if (rot) { |
| 1134 // rotate around center | |
| 1135 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
|
713
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more cosmetics: added options to validate with http://www.jslint.com
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diff
changeset
|
1136 } |
| 675 | 1137 // move back |
| 1138 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
|
713
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more cosmetics: added options to validate with http://www.jslint.com
robcast
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diff
changeset
|
1139 } |
|
664
d5a5ee4cbf04
work on getting transformation to work with rotation (currently still doesn't)
robcast
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663
diff
changeset
|
1140 // scale to screen position and size |
|
658
9ddcf0070122
split bird's view code in two more parts, analog to scaler-img code.
robcast
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diff
changeset
|
1141 trafo.concat(trafo.getScale(picrect)); |
|
9ddcf0070122
split bird's view code in two more parts, analog to scaler-img code.
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diff
changeset
|
1142 trafo.concat(trafo.getTranslation(picrect)); |
|
9ddcf0070122
split bird's view code in two more parts, analog to scaler-img code.
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656
diff
changeset
|
1143 return trafo; |
| 655 | 1144 }; |
|
678
d50d24b7fd95
first step at dragging birdview zoom indicator around
hertzhaft
parents:
677
diff
changeset
|
1145 |
| 949 | 1146 /** update current scaler image transform |
| 1147 */ | |
| 767 | 1148 var updateImgTrafo = function (data) { |
| 1149 var $img = data.$img; | |
| 895 | 1150 if ($img == null) |
| 1151 return; | |
| 1152 var imgLoaded = $.browser.msie | |
| 949 | 1153 ? $img.prop('width') > 0 |
| 1154 : $img.prop('complete'); | |
|
950
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much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1155 if (imgLoaded || data.hasPreviewBg) { |
| 1015 | 1156 // create Transform from current zoomArea and image size |
| 1157 data.imgTrafo = getImgTrafo($img, data.zoomArea, data.settings.rot, | |
| 1158 data.scalerFlags.hmir, data.scalerFlags.vmir, | |
| 1159 data.scaleMode, data); | |
| 1160 console.debug("updateImgTrafo: ", data.imgTrafo); | |
| 1161 } | |
| 767 | 1162 }; |
| 775 | 1163 |
| 949 | 1164 /** return handler for load event of scaler img |
| 1165 * (necessary for closure with data object) | |
| 1166 */ | |
| 767 | 1167 var scalerImgLoadedHandler = function (data) { |
| 1168 return function () { | |
| 1169 var $img = $(this); | |
| 1170 console.debug("scaler img loaded=",$img); | |
| 1171 var $scaler = data.$scaler; | |
|
760
f0be4432f515
primitive plugin extension mechanism - unsure how useful this is
hertzhaft
parents:
755
diff
changeset
|
1172 var imgRect = geom.rectangle($img); |
| 931 | 1173 data.imgRect = imgRect; |
| 1015 | 1174 // reset busy cursor |
| 1175 $('body').css('cursor', 'auto'); | |
| 1176 $scaler.css('cursor', 'auto'); | |
| 957 | 1177 // adjust scaler div size (beware: setting position makes the element relative) |
| 1178 imgRect.getSize().adjustDiv($scaler); | |
| 715 | 1179 // show image in case it was hidden (for example in zoomDrag) |
| 733 | 1180 $img.css('visibility', 'visible'); |
|
1019
287e2d2d2ae8
fix flicker in Firefox by leaving scaler background visible.
robcast
parents:
1018
diff
changeset
|
1181 $scaler.css({'opacity' : '1'}); |
|
950
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much nicer implementation of preview for scrolling and zooming.
robcast
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diff
changeset
|
1182 data.hasPreviewBg = false; |
| 767 | 1183 // update display (render marks, etc.) |
| 1184 updateDisplay(data); | |
|
658
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split bird's view code in two more parts, analog to scaler-img code.
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diff
changeset
|
1185 }; |
|
9ddcf0070122
split bird's view code in two more parts, analog to scaler-img code.
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diff
changeset
|
1186 }; |
|
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split bird's view code in two more parts, analog to scaler-img code.
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diff
changeset
|
1187 |
| 949 | 1188 /** handle imageInfo loaded event |
| 1189 * | |
| 1190 */ | |
| 797 | 1191 var handleImageInfo = function (evt, json) { |
| 1015 | 1192 console.debug("handleImageInfo:", json); |
| 797 | 1193 var data = this; |
| 1194 updateDisplay(data); | |
| 1195 }; | |
| 813 | 1196 |
| 949 | 1197 /** handle changeZoomArea event |
| 1198 * | |
| 1199 */ | |
| 942 | 1200 var handleChangeZoomArea = function (evt, newZa) { |
| 1015 | 1201 console.debug("handleChangeZoomArea:", newZa); |
| 1202 var data = this; | |
| 1203 // hide all overlays (marks/regions) | |
| 996 | 1204 data.$elem.find('.'+data.settings.cssPrefix+'overlay').hide(); |
| 1015 | 1205 setPreviewBg(data, newZa); |
| 942 | 1206 }; |
| 1015 | 1207 |
| 949 | 1208 /** zoom by the given factor. |
| 1209 * | |
| 1210 */ | |
| 643 | 1211 var zoomBy = function(data, factor) { |
| 1212 var area = data.zoomArea; | |
| 1213 var newarea = area.copy(); | |
| 1214 // scale | |
| 1215 newarea.width /= factor; | |
| 1216 newarea.height /= factor; | |
| 1217 // and recenter | |
| 1218 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 1219 newarea.y -= 0.5 * (newarea.height - area.height); | |
|
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
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733
diff
changeset
|
1220 newarea = FULL_AREA.fit(newarea); |
|
950
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much nicer implementation of preview for scrolling and zooming.
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diff
changeset
|
1221 setZoomArea(data, newarea); |
| 972 | 1222 // reset modes |
| 1223 setScaleMode(data, 'screen'); | |
| 1224 setFitMode(data, 'both'); | |
|
644
ee8ccd84c5f8
reload doesn't take list of changed parameters any more
robcast
parents:
643
diff
changeset
|
1225 redisplay(data); |
| 643 | 1226 }; |
| 1227 | |
| 949 | 1228 /** zoom to the area around two clicked points. |
| 1229 * | |
| 1230 */ | |
| 654 | 1231 var zoomArea = function(data) { |
| 1232 $elem = data.$elem; | |
| 1233 $scaler = data.$scaler; | |
| 1234 var pt1, pt2; | |
| 996 | 1235 var $zoomDiv = $('<div class="'+data.settings.cssPrefix+'zoomrect" style="display:none"/>'); |
| 654 | 1236 $elem.append($zoomDiv); |
| 775 | 1237 // $zoomDiv.css(data.settings.zoomrectStyle); |
| 654 | 1238 var picRect = geom.rectangle($scaler); |
| 1239 // FIX ME: is there a way to query the border width from CSS info? | |
| 1240 // rect.x -= 2; // account for overlay borders | |
| 1241 // rect.y -= 2; | |
| 1242 | |
| 1243 var zoomStart = function (evt) { | |
| 1244 pt1 = geom.position(evt); | |
| 1245 // setup and show zoom div | |
| 738 | 1246 pt1.adjustDiv($zoomDiv); |
| 668 | 1247 $zoomDiv.width(0).height(0); |
| 654 | 1248 $zoomDiv.show(); |
| 1249 // register events | |
| 917 | 1250 $elem.on("mousemove.dlZoomArea", zoomMove); |
| 1251 $elem.on("mouseup.dlZoomArea", zoomEnd); | |
| 654 | 1252 return false; |
| 1253 }; | |
| 668 | 1254 |
| 741 | 1255 // mouse move handler |
| 1256 var zoomMove = function (evt) { | |
| 1257 pt2 = geom.position(evt); | |
| 1258 var rect = geom.rectangle(pt1, pt2); | |
| 1259 rect.clipTo(picRect); | |
| 1260 // update zoom div | |
| 1261 rect.adjustDiv($zoomDiv); | |
| 1262 return false; | |
| 1263 }; | |
|
745
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
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diff
changeset
|
1264 |
| 654 | 1265 // mouseup handler: end moving |
| 1266 var zoomEnd = function (evt) { | |
| 1267 pt2 = geom.position(evt); | |
| 1268 // assume a click and continue if the area is too small | |
| 1269 var clickRect = geom.rectangle(pt1, pt2); | |
| 710 | 1270 if (clickRect.getArea() <= 5) return false; |
| 654 | 1271 // hide zoom div |
| 1272 $zoomDiv.remove(); | |
| 1273 // unregister events | |
| 917 | 1274 $elem.off("mousemove.dlZoomArea", zoomMove); |
| 1275 $elem.off("mouseup.dlZoomArea", zoomEnd); | |
| 654 | 1276 // clip and transform |
| 1277 clickRect.clipTo(picRect); | |
| 1278 var area = data.imgTrafo.invtransform(clickRect); | |
|
951
9c699b6cfcca
preview for ZoomArea. shows distortions when changing aspect ratio.
robcast
parents:
950
diff
changeset
|
1279 setZoomArea(data, area); |
| 972 | 1280 // reset modes |
| 1281 setFitMode(data, 'both'); | |
| 1282 setScaleMode(data, 'screen'); | |
| 654 | 1283 redisplay(data); |
| 1284 return false; | |
| 1285 }; | |
| 668 | 1286 |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1287 // clear old handler (also ZoomDrag) |
| 917 | 1288 $scaler.off('.dlZoomArea'); |
| 1289 $scaler.off(".dlZoomDrag"); | |
| 1290 $elem.off('.dlZoomArea'); | |
| 654 | 1291 // bind start zoom handler |
| 738 | 1292 $scaler.one('mousedown.dlZoomArea', zoomStart); |
| 654 | 1293 }; |
| 647 | 1294 |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
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diff
changeset
|
1295 /** set preview background. |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
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diff
changeset
|
1296 * optional newZoomArea scales and moves background to preview. |
| 949 | 1297 */ |
|
950
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much nicer implementation of preview for scrolling and zooming.
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diff
changeset
|
1298 var setPreviewBg = function(data, newZoomArea) { |
|
746
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move zoom-drag background along with birdview indicator
hertzhaft
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diff
changeset
|
1299 var $scaler = data.$scaler; |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1300 var $img = data.$img; |
|
950
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much nicer implementation of preview for scrolling and zooming.
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changeset
|
1301 var imgTrafo = data.imgTrafo; |
|
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much nicer implementation of preview for scrolling and zooming.
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diff
changeset
|
1302 var scalerPos = geom.position($scaler); |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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diff
changeset
|
1303 var bgRect = null; |
|
746
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move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1304 // hide the scaler img, show background of div instead |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1305 $img.css('visibility', 'hidden'); |
|
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1306 // use current image as first background |
|
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1307 var scalerCss = { |
| 1015 | 1308 'background-image' : 'url(' + $img.attr('src') + ')', |
|
950
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much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1309 'background-repeat' : 'no-repeat', |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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parents:
949
diff
changeset
|
1310 'background-position' : '0px 0px', |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1311 'opacity' : '0.7', |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1312 'cursor' : 'move' |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1313 }; |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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parents:
949
diff
changeset
|
1314 if (newZoomArea != null) { |
| 1015 | 1315 // check if aspect ratio has changed |
| 1316 if (Math.abs(newZoomArea.getAspect() - data.zoomArea.getAspect()) > 0.001 ) { | |
| 1317 var newRect = data.imgTrafo.transform(newZoomArea); | |
| 1318 var newAspect = newRect.getAspect(); | |
| 1319 var newSize = data.maxImgSize.fitAspect(newAspect); | |
| 1320 // set scaler to presumed new size | |
| 1321 newSize.adjustDiv($scaler); | |
| 1322 console.debug("adjusting aspect ratio for preview", data.maxImgSize, newSize); | |
| 1323 } | |
| 1324 // get transform for new zoomArea (use 'screen' instead of data.scaleMode) | |
| 1325 imgTrafo = getImgTrafo($scaler, newZoomArea, data.settings.rot, | |
| 1326 data.scalerFlags.hmir, data.scalerFlags.vmir, | |
| 1327 'screen', data); | |
| 1328 // for new background coordinates transform old zoomArea with new Transform | |
| 1329 bgRect = imgTrafo.transform(data.zoomArea); | |
| 1330 // correct offset because background is relative | |
| 1331 bgRect.addPosition(scalerPos.neg()); | |
| 1332 // position background | |
| 1333 scalerCss['background-position'] = Math.round(bgRect.x) + 'px '+ Math.round(bgRect.y) + 'px'; | |
|
950
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much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1334 } |
|
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1335 if (data.hasBgSize) { |
| 1015 | 1336 // scale background using CSS3-background-size |
| 1337 if (bgRect != null && (bgRect.height < data.settings.maxBgSize && bgRect.width < data.settings.maxBgSize)) { | |
| 1338 scalerCss[data.bgSizeName] = Math.round(bgRect.width) + 'px ' + Math.round(bgRect.height) + 'px'; | |
| 1339 } else { | |
| 1340 scalerCss[data.bgSizeName] = 'auto'; | |
| 1341 } | |
|
950
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much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1342 // additional full-size background using CSS3 |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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parents:
949
diff
changeset
|
1343 fullRect = imgTrafo.transform(FULL_AREA); |
|
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1344 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) { |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1345 // correct offset because background is relative |
|
751
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
748
diff
changeset
|
1346 fullRect.addPosition(scalerPos.neg()); |
| 954 | 1347 var url = getPreviewImgUrl(data); |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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parents:
949
diff
changeset
|
1348 // add second background url, size and position |
|
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1349 scalerCss['background-image'] += ', url(' + url + ')'; |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1350 scalerCss[data.bgSizeName] += ', ' + Math.round(fullRect.width) + 'px ' + Math.round(fullRect.height) + 'px'; |
|
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much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1351 scalerCss['background-position'] += ', ' + Math.round(fullRect.x) + 'px '+ Math.round(fullRect.y) + 'px'; |
|
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1352 } |
|
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1353 } |
|
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1354 $scaler.css(scalerCss); |
| 942 | 1355 data.hasPreviewBg = true; |
|
929
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
robcast
parents:
928
diff
changeset
|
1356 }; |
| 1015 | 1357 |
| 949 | 1358 /** setup handlers for dragging the zoomed image. |
| 1359 * | |
| 1360 */ | |
| 705 | 1361 var setupZoomDrag = function(data) { |
| 942 | 1362 var startPos, delta; |
| 733 | 1363 var $document = $(document); |
| 795 | 1364 var $data = $(data); |
| 705 | 1365 var $elem = data.$elem; |
| 1366 var $scaler = data.$scaler; | |
| 1367 var $img = data.$img; | |
| 710 | 1368 |
| 733 | 1369 // drag the image and load a new detail on mouse up |
| 705 | 1370 var dragStart = function (evt) { |
| 1015 | 1371 // cancel if not left-click |
| 1372 if (evt.which != 1) return; | |
| 813 | 1373 console.debug("dragstart at=", evt); |
|
737
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
736
diff
changeset
|
1374 // don't start dragging if not zoomed |
|
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
736
diff
changeset
|
1375 if (isFullArea(data.zoomArea)) return false; |
| 813 | 1376 $elem.find(".overlay").hide(); // hide all overlays (marks/regions) |
| 733 | 1377 startPos = geom.position(evt); |
| 741 | 1378 delta = null; |
|
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1379 // set low res background immediately on mousedown |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1380 setPreviewBg(data); |
| 917 | 1381 $document.on("mousemove.dlZoomDrag", dragMove); |
| 1382 $document.on("mouseup.dlZoomDrag", dragEnd); | |
|
713
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more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1383 return false; |
| 705 | 1384 }; |
|
745
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1385 |
| 733 | 1386 // mousemove handler: drag zoomed image |
| 705 | 1387 var dragMove = function (evt) { |
| 1388 var pos = geom.position(evt); | |
| 741 | 1389 delta = startPos.delta(pos); |
|
807
1b1728926534
geometry: overlapsRect() plus some comment clarifications
hertzhaft
parents:
799
diff
changeset
|
1390 // send message event with current zoom position |
|
745
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1391 var za = geom.rectangle($img); |
|
ad483c008159
move birdview zoom indicator along with zoom drag
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744
diff
changeset
|
1392 za.addPosition(delta.neg()); |
| 947 | 1393 // transform back |
| 1394 var newArea = data.imgTrafo.invtransform(za); | |
| 1395 $data.trigger('changeZoomArea', newArea); | |
| 705 | 1396 return false; |
| 1397 }; | |
| 710 | 1398 |
| 733 | 1399 // mouseup handler: reload zoomed image in new position |
| 705 | 1400 var dragEnd = function (evt) { |
| 739 | 1401 $scaler.css('cursor', 'auto'); |
| 917 | 1402 $document.off("mousemove.dlZoomDrag", dragMove); |
| 1403 $document.off("mouseup.dlZoomDrag", dragEnd); | |
| 733 | 1404 if (delta == null || delta.distance() < 2) { |
| 1405 // no movement | |
| 1406 $img.css('visibility', 'visible'); | |
| 741 | 1407 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
| 944 | 1408 data.hasPreviewBg = false; |
| 993 | 1409 // unhide marks etc. |
| 1410 updateDisplay(data); | |
| 733 | 1411 return false; |
| 1412 } | |
| 1413 // get old zoom area (screen coordinates) | |
| 741 | 1414 var za = geom.rectangle($img); |
| 733 | 1415 // move |
| 741 | 1416 za.addPosition(delta.neg()); |
| 733 | 1417 // transform back |
| 1418 var newArea = data.imgTrafo.invtransform(za); | |
|
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1419 data.zoomArea = FULL_AREA.fit(newArea); |
|
708
120ace160386
img reload works for fullscreen, but somehow not precise
hertzhaft
parents:
707
diff
changeset
|
1420 redisplay(data); |
| 705 | 1421 return false; |
| 1422 }; | |
|
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1423 |
| 733 | 1424 // clear old handler |
| 917 | 1425 $document.off(".dlZoomDrag"); |
| 1426 $scaler.off(".dlZoomDrag"); | |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1427 if (! isFullArea(data.zoomArea)) { |
|
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1428 // set handler |
| 917 | 1429 $scaler.on("mousedown.dlZoomDrag", dragStart); |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1430 } |
| 705 | 1431 }; |
| 1432 | |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1433 /** set the zoom area. |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1434 * also triggers "changeZoomArea" event. |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1435 */ |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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parents:
949
diff
changeset
|
1436 var setZoomArea = function(data, za) { |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1437 $(data).trigger('changeZoomArea', za); |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1438 data.oldZoomArea = data.zoomArea; |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1439 data.zoomArea = za; |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1440 }; |
| 1012 | 1441 |
| 949 | 1442 /** get image quality as a number (0..2). |
| 1443 * | |
| 1444 */ | |
| 703 | 1445 var getQuality = function (data) { |
| 1446 var flags = data.scalerFlags; | |
| 1447 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
| 1448 return parseInt(q[1], 10); | |
| 706 | 1449 }; |
| 703 | 1450 |
| 949 | 1451 /** set image quality as a number (0..2). |
| 1452 * | |
| 1453 */ | |
| 703 | 1454 var setQuality = function (data, qual) { |
| 1455 var flags = data.scalerFlags; | |
| 1456 // clear flags | |
| 1457 for (var i = 0; i < 3; ++i) { | |
| 1458 delete flags['q'+i]; | |
|
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1459 } |
| 703 | 1460 flags['q'+qual] = 'q'+qual; |
| 706 | 1461 }; |
| 710 | 1462 |
| 949 | 1463 /** get image scale mode (screen, pixel, size). |
| 1464 * | |
| 1465 */ | |
|
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1466 var getScaleMode = function (data) { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1467 if (data.scalerFlags.clip != null) { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1468 return 'pixel'; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1469 } else if (data.scalerFlags.osize != null) { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1470 return 'size'; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1471 } |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1472 // mo=fit is default |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1473 return 'screen'; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1474 }; |
| 775 | 1475 |
| 949 | 1476 /** set image scale mode (screen, pixel, size). |
| 1477 * | |
| 1478 */ | |
|
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1479 var setScaleMode = function (data, mode) { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1480 delete data.scalerFlags.fit; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1481 delete data.scalerFlags.clip; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1482 delete data.scalerFlags.osize; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1483 if (mode === 'pixel') { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1484 data.scalerFlags.clip = 'clip'; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1485 } else if (mode === 'size') { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1486 data.scalerFlags.osize = 'osize'; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1487 } |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1488 // mo=fit is default |
| 972 | 1489 // save mode |
| 1490 data.scaleMode = mode; | |
|
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1491 }; |
| 775 | 1492 |
| 972 | 1493 /** get screen fit mode (width, height, both). |
| 1494 * | |
| 1495 */ | |
| 1496 var getFitMode = function (data) { | |
| 1015 | 1497 if (data.dlOpts.fitwidth != null) { |
| 1498 return "width"; | |
| 1499 } else if (data.dlOpts.fitheight != null) { | |
| 1500 return "height"; | |
| 1501 } | |
| 1502 // "both" is default | |
| 1503 return "both"; | |
| 972 | 1504 }; |
| 1012 | 1505 |
| 972 | 1506 /** |
| 1507 * set screen fit mode (width, height, both). | |
| 1508 */ | |
| 1509 var setFitMode = function (data, mode) { | |
| 984 | 1510 var settings = data.settings; |
| 1012 | 1511 var imgSize = data.maxImgSize; |
| 1015 | 1512 if (mode === 'width') { |
| 1513 data.dlOpts.fitwidth = 1; | |
| 1514 delete data.dlOpts.fitheight; | |
| 1515 if (imgSize != null) { | |
| 1516 // fitwidth omits destination height | |
| 1517 settings.dw = imgSize.width; | |
| 1518 settings.dh = null; | |
| 1519 } | |
| 1520 } else if (mode === 'height') { | |
| 1521 data.dlOpts.fitheight = 1; | |
| 1522 delete data.dlOpts.fitwidth; | |
| 984 | 1523 if (imgSize != null) { |
| 1524 // fitheight omits destination width | |
| 1525 settings.dw = null; | |
| 1526 settings.dh = imgSize.height; | |
| 1527 } | |
| 1015 | 1528 } else { |
| 1529 delete data.dlOpts.fitwidth; | |
| 1530 delete data.dlOpts.fitheight; | |
| 984 | 1531 if (imgSize != null) { |
| 1532 settings.dw = imgSize.width; | |
| 1533 settings.dh = imgSize.height; | |
| 1534 } | |
| 1015 | 1535 } |
| 972 | 1536 }; |
| 1015 | 1537 |
| 949 | 1538 /** sets a key to a value (relative values with +/- if relative=true). |
| 1539 * | |
| 1540 */ | |
| 650 | 1541 var setNumValue = function(settings, key, value) { |
| 716 | 1542 if (value == null) return null; |
|
955
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1543 if (isNumber(value)) { |
|
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1544 settings[key] = value; |
|
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1545 return value; |
|
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1546 } |
|
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1547 var sign = value[0]; |
| 650 | 1548 if (sign === '+' || sign === '-') { |
| 1549 if (settings[key] == null) { | |
|
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1550 // this isn't perfect but still... |
| 650 | 1551 settings[key] = 0; |
|
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1552 } |
| 650 | 1553 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
| 1554 } else { | |
| 1555 settings[key] = value; | |
|
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1556 } |
| 650 | 1557 return settings[key]; |
| 1558 }; | |
| 655 | 1559 |
| 949 | 1560 /** return width of border on $elem. |
| 1561 * assumes equal border width on all sides. | |
| 1562 */ | |
| 775 | 1563 var getBorderWidth = function($elem) { |
| 1564 var border = $elem.outerWidth() - $elem.width(); | |
| 1565 return border/2; | |
| 1566 }; | |
| 1567 | |
| 949 | 1568 /** return if the current zoomarea can be moved further. |
| 1569 * | |
| 1570 */ | |
| 878 | 1571 var canMove = function(data, movx, movy) { |
| 1572 var za = data.zoomArea; | |
| 1573 if (isFullArea(za)) return false; | |
| 1574 var x2 = za.x + za.width; | |
| 1575 var y2 = za.y + za.height; | |
| 949 | 1576 return (((movx < 0) && (za.x > 0)) |
| 878 | 1577 || ((movx > 0) && (x2 < 1.0)) |
| 1578 || ((movy < 0) && (za.y > 0)) | |
| 949 | 1579 || ((movy > 0) && (y2 < 1.0))); |
| 878 | 1580 }; |
| 1581 | |
| 949 | 1582 /** return if area is maximal. |
| 1583 * | |
| 1584 */ | |
| 795 | 1585 var isFullArea = function (area) { |
| 659 | 1586 return (area.width === 1.0) && (area.height === 1.0); |
| 655 | 1587 }; |
| 1588 | |
|
955
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
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1589 /** return if the argument is a number. |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
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diff
changeset
|
1590 * from Douglas Crockford, A.10. |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
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parents:
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diff
changeset
|
1591 * this is different from $.isNumeric(). |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
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parents:
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diff
changeset
|
1592 */ |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
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parents:
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diff
changeset
|
1593 var isNumber = function (value) { |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
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diff
changeset
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1594 return typeof value === 'number' && isFinite(value); |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
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parents:
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diff
changeset
|
1595 }; |
| 949 | 1596 /** return number with reduced precision. |
| 1597 * ("crop senseless precision") | |
| 1598 */ | |
| 631 | 1599 var cropFloat = function (x) { |
| 637 | 1600 return parseInt(10000 * x, 10) / 10000; |
| 631 | 1601 }; |
| 655 | 1602 |
| 949 | 1603 /** return string from number with reduced precision. |
| 1604 * | |
| 1605 */ | |
| 813 | 1606 var cropFloatStr = function (x) { |
| 1607 return cropFloat(x).toString(); | |
| 1608 }; | |
| 1609 | |
| 1021 | 1610 var centerOnScreen = function (data, $div) { |
| 1611 var r = geom.rectangle($div); | |
| 1612 var s = fn.getFullscreenRect(data); | |
| 1613 r.setCenter(s.getCenter()); | |
| 1614 r.adjustDiv($div); | |
| 1615 }; | |
| 1616 | |
| 692 | 1617 // fallback for console.log calls |
| 1618 if (customConsole) { | |
| 1619 var logFunction = function(type) { | |
| 1620 return function(){ | |
| 996 | 1621 var $debug = $('#'+defaults.cssPrefix+'debug'); // debug div |
| 692 | 1622 if (!$debug) return; |
| 1623 var args = Array.prototype.slice.call(arguments); | |
| 1624 var argtext = args.join(' '); | |
| 1625 var $logDiv = $('<div/>'); | |
| 1626 $logDiv.addClass(type); | |
| 1627 $logDiv.text(argtext); | |
| 1628 $debug.append($logDiv); | |
| 1629 }; | |
| 1630 }; | |
| 1631 console.log = logFunction('_log'); | |
| 1632 console.debug = logFunction('_debug'); | |
| 1633 console.error = logFunction('_error'); | |
|
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
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711
diff
changeset
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1634 } |
| 692 | 1635 |
| 949 | 1636 /** functions to export to plugins. |
| 1637 */ | |
| 787 | 1638 fn = { |
| 791 | 1639 geometry : geom, |
| 787 | 1640 parseQueryString : parseQueryString, |
| 1641 getScalerUrl : getScalerUrl, | |
| 1642 getParamString : getParamString, | |
| 1643 getDigilibUrl : getDigilibUrl, | |
| 1644 unpackParams : unpackParams, | |
| 1645 packParams : packParams, | |
| 822 | 1646 packArea : packArea, |
| 1647 packScalerFlags : packScalerFlags, | |
| 795 | 1648 storeOptions : storeOptions, |
| 787 | 1649 redisplay : redisplay, |
| 1650 updateDisplay : updateDisplay, | |
| 791 | 1651 showDiv : showDiv, |
| 983 | 1652 setZoomArea : setZoomArea, |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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diff
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1653 setPreviewBg : setPreviewBg, |
| 787 | 1654 getImgTrafo : getImgTrafo, |
| 1655 getQuality : getQuality, | |
| 1656 setQuality : setQuality, | |
| 1657 getScaleMode : getScaleMode, | |
| 1658 setScaleMode : setScaleMode, | |
| 972 | 1659 getFitMode : getFitMode, |
| 1660 setFitMode : setFitMode, | |
| 878 | 1661 canMove : canMove, |
| 795 | 1662 isFullArea : isFullArea, |
| 978 | 1663 isNumber : isNumber, |
| 974 | 1664 getFullscreenRect : getFullscreenRect, |
| 813 | 1665 getBorderWidth : getBorderWidth, |
| 1666 cropFloat : cropFloat, | |
| 1021 | 1667 cropFloatStr : cropFloatStr, |
| 1668 centerOnScreen : centerOnScreen | |
| 787 | 1669 }; |
| 788 | 1670 |
|
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
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diff
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1671 // hook digilib plugin into jquery |
| 785 | 1672 $.fn.digilib = function (action) { |
|
799
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started to adapt regions plugin to new plugin mechanism
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1673 // plugin extension mechanism, called when the plugins' code is read |
| 786 | 1674 if (action === 'plugin') { |
| 1675 var plugin = arguments[1]; | |
| 1676 // each plugin needs a name | |
| 1677 if (plugin.name != null) { | |
| 1678 plugins[plugin.name] = plugin; | |
|
793
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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791
diff
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1679 // share common objects |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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1680 plugin.defaults = defaults; |
| 947 | 1681 plugin.buttons = buttons; |
|
793
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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1682 plugin.actions = actions; |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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1683 plugin.fn = fn; |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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1684 plugin.plugins = plugins; |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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1685 // and install |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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1686 if (typeof plugin.install === 'function') { |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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|
1687 plugin.install(plugin); |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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diff
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|
1688 } |
| 786 | 1689 } |
|
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
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parents:
798
diff
changeset
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1690 // plugins will be initialised when action.init is called |
|
760
f0be4432f515
primitive plugin extension mechanism - unsure how useful this is
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diff
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1691 } else if (actions[action]) { |
|
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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650
diff
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1692 // call action on this with the remaining arguments (inserting data as first argument) |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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1693 var $elem = $(this); |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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1694 var data = $elem.data('digilib'); |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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1695 var args = Array.prototype.slice.call(arguments, 1); |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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|
1696 args.unshift(data); |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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1697 return actions[action].apply(this, args); |
|
798
b07d1824ca2a
fullscreen mode works without reload on browsers supporting history.pushstate!
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1698 } else if (typeof action === 'object' || !action) { |
|
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
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changeset
|
1699 // call init on the digilib jQuery object |
|
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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1700 return actions.init.apply(this, arguments); |
| 605 | 1701 } else { |
|
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
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1702 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
|
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
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|
1703 } |
| 605 | 1704 }; |
| 692 | 1705 |
|
991
497ab03868ab
moved marks to separate plugin. (pack and unpack is still in digilib.js)
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diff
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|
1706 })(jQuery); |