Mercurial > hg > digilib-old
annotate webapp/src/main/webapp/jquery/jquery.digilib.js @ 1019:287e2d2d2ae8
fix flicker in Firefox by leaving scaler background visible.
add setSize and setRGB actions.
disabled rotation slider for now (needs excact numerical input option).
| author | robcast |
|---|---|
| date | Mon, 20 Feb 2012 22:23:07 +0100 |
| parents | 7f8aaae89f9b |
| children | 0eedb4a5b674 |
| 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 | |
| 402 */ | |
| 668 | 403 contrast : function (data, factor) { |
| 404 var cont = data.settings.cont; | |
| 405 if (factor == null) { | |
| 406 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 407 } | |
| 408 data.settings.cont = factor; | |
| 409 redisplay(data); | |
| 688 | 410 }, |
| 710 | 411 |
|
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412 /** change rgb contrast and brightness |
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413 * |
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414 * @param data |
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415 * @param rgbm |
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416 * @param rgba |
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417 */ |
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418 setRGB : function (data, rgbm, rgba) { |
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419 var oldRgbm = data.settings.rgbm; |
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420 var oldRgba = data.settings.rgba; |
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421 if (rgbm == null && rgba == null) { |
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422 var rgb = window.prompt("RGBm, RGBa (m_r/m_g/m_b, a_r/a_g/a_b)", oldRgbm+', '+oldRgba); |
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423 if (rgb != null) { |
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424 rgbs = rgb.split(/,\s*/); |
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425 if (rgbs.length == 2) { |
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426 data.settings.rgbm = rgbs[0]; |
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427 data.settings.rgba = rgbs[1]; |
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428 redisplay(data); |
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429 } |
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430 } |
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431 } else { |
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432 if (rgbm != null) data.settings.rgbm = rgbm; |
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433 if (rgba != null) data.settings.rgba = rgba; |
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434 redisplay(data); |
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435 } |
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436 }, |
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437 |
| 954 | 438 /** reset image parameters to defaults |
| 439 * TODO: improve this! | |
| 440 * | |
| 441 * @param data | |
| 442 */ | |
| 688 | 443 reset : function (data) { |
| 444 var settings = data.settings; | |
| 445 var paramNames = settings.digilibParamNames; | |
| 446 var params = data.queryParams; | |
| 447 // delete all digilib parameters | |
| 448 for (var i = 0; i < paramNames.length; i++) { | |
| 449 var paramName = paramNames[i]; | |
| 450 delete settings[paramName]; | |
|
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451 } |
|
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452 settings.fn = params.fn || ''; // no default defined |
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453 settings.pn = params.pn || defaults.pn; |
| 986 | 454 var size = getFullscreenImgSize(data); |
| 455 settings.dw = params.dw || size.width; | |
| 456 settings.dh = params.dh || size.height; | |
| 709 | 457 settings.isBirdDivVisible = false; |
| 946 | 458 settings.visibleButtonSets = 1; // FIXME |
|
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459 // resets zoomArea, marks, scalerflags |
| 917 | 460 data.zoomArea = FULL_AREA.copy(); |
|
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461 data.marks = []; |
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462 data.scalerFlags = {}; |
| 712 | 463 delete data.dlOpts.fitwidth; |
| 464 delete data.dlOpts.fitheight; | |
| 986 | 465 data.scaleMode = 'screen'; |
| 688 | 466 redisplay(data); |
| 689 | 467 }, |
| 468 | |
| 954 | 469 /** presents a reference url (returns value if noprompt) |
| 470 * | |
| 471 * @param data | |
| 472 * @param noprompt | |
| 473 * @returns | |
| 474 */ | |
| 703 | 475 reference : function (data, noprompt) { |
| 744 | 476 var url = getDigilibUrl(data); |
| 703 | 477 if (noprompt == null) { |
| 478 window.prompt("URL reference to the current view", url); | |
| 1011 | 479 // return nothing so we can use is in javascript: url without reload |
| 480 return; | |
| 703 | 481 } |
| 482 return url; | |
| 483 }, | |
| 710 | 484 |
| 1011 | 485 /** |
| 486 * Returns URL to the full digilib.html with the current parameters. | |
| 487 * Redirects immediately with mode=open. | |
| 488 * | |
| 489 * @param data | |
| 490 * @param mode | |
| 491 */ | |
| 492 digilibUrl : function (data, mode) { | |
| 493 var url = getDigilibUrl(data, '/jquery/digilib.html'); | |
| 494 if (mode === 'open') { | |
| 495 // redirect | |
| 496 window.location = url; | |
| 497 } else if (mode === 'open_new') { | |
| 498 // open new window | |
| 499 window.open(url); | |
| 500 return; | |
| 501 } | |
| 502 return url; | |
| 503 }, | |
| 504 | |
| 505 | |
| 954 | 506 /** set image quality |
| 507 * | |
| 508 * @param data | |
| 509 * @param qual | |
| 510 */ | |
| 748 | 511 setQuality : function (data, qual) { |
| 703 | 512 var oldq = getQuality(data); |
| 513 if (qual == null) { | |
| 514 qual = window.prompt("Image quality (0..2)", oldq); | |
| 515 } | |
| 516 qual = parseInt(qual, 10); | |
| 517 if (qual >= 0 && qual <= 2) { | |
| 518 setQuality(data, qual); | |
| 519 redisplay(data); | |
| 520 } | |
|
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521 }, |
|
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522 |
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523 /** set image size |
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524 * |
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525 * @param data |
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526 * @param size |
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527 */ |
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528 setSize : function (data, size) { |
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529 var olds = data.settings.ws; |
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530 if (size == null) { |
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531 size = window.prompt("Image size (1=screen size)", olds); |
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532 } |
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533 size = parseFloat(size); |
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534 if (size > 0) { |
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535 data.settings.ws = size; |
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536 redisplay(data); |
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537 } |
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538 }, |
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539 |
|
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540 /** calibrate (set client screen dpi) |
| 954 | 541 * |
| 542 * @param data | |
| 543 * @param res | |
| 544 */ | |
|
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545 calibrate : function (data, res) { |
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546 var oldRes = data.settings.ddpi; |
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547 if (res == null) { |
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548 res = window.prompt("Display resolution (dpi)", oldRes); |
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549 } |
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550 if (res != null) { |
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551 data.settings.ddpi = res; |
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552 redisplay(data); |
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553 } |
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554 }, |
| 775 | 555 |
| 954 | 556 /** set image scale mode |
| 557 * | |
| 558 * @param data | |
| 559 * @param mode | |
| 560 */ | |
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561 setScaleMode : function (data, mode) { |
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562 var oldM = getScaleMode(data); |
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563 if (mode == null) { |
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564 mode = window.prompt("Image scale mode (screen, pixel, size)", oldM); |
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565 } |
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566 if (mode != null) { |
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567 setScaleMode(data, mode); |
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568 redisplay(data); |
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|
569 } |
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|
570 } |
|
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|
571 // end of actions |
| 605 | 572 }; |
| 604 | 573 |
| 954 | 574 /** return parameters from page url |
| 575 * | |
| 576 */ | |
| 607 | 577 var parseQueryParams = function() { |
| 636 | 578 return parseQueryString(window.location.search.slice(1)); |
| 579 }; | |
| 655 | 580 |
| 984 | 581 /** |
| 582 * returns parameters from embedded img-element | |
| 954 | 583 * |
| 584 */ | |
| 607 | 585 var parseImgParams = function($elem) { |
|
613
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|
586 var src = $elem.find('img').first().attr('src'); |
| 710 | 587 if (!src) return null; |
| 607 | 588 var pos = src.indexOf('?'); |
| 589 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 590 var scalerUrl = src.substring(0, pos); | |
| 627 | 591 var params = parseQueryString(query); |
| 592 params.scalerBaseUrl = scalerUrl; | |
| 593 return params; | |
| 636 | 594 }; |
| 607 | 595 |
| 984 | 596 /** |
| 597 * parses query parameter string into parameter object | |
| 954 | 598 * |
| 599 */ | |
| 607 | 600 var parseQueryString = function(query) { |
| 701 | 601 var params = {}; |
| 602 if (query == null) return params; | |
| 607 | 603 var pairs = query.split("&"); |
| 636 | 604 //var keys = []; |
| 607 | 605 for (var i = 0; i < pairs.length; i++) { |
| 606 var pair = pairs[i].split("="); | |
| 607 if (pair.length === 2) { | |
| 627 | 608 params[pair[0]] = pair[1]; |
| 636 | 609 //keys.push(pair[0]); |
| 634 | 610 } |
| 636 | 611 } |
| 627 | 612 return params; |
| 636 | 613 }; |
| 668 | 614 |
| 984 | 615 /** |
| 616 * return a query string from key names from a parameter hash | |
| 954 | 617 * (ignores keys if the same value is in defaults) |
| 618 * | |
| 619 */ | |
| 643 | 620 var getParamString = function (settings, keys, defaults) { |
| 615 | 621 var paramString = ''; |
| 650 | 622 var nx = false; |
|
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623 for (var i = 0; i < keys.length; ++i) { |
| 615 | 624 var key = keys[i]; |
| 663 | 625 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 615 | 626 // first param gets no '&' |
| 650 | 627 if (nx) { |
| 628 paramString += '&'; | |
| 629 } else { | |
| 630 nx = true; | |
| 631 } | |
| 615 | 632 // add parm=val |
| 633 paramString += key + '=' + settings[key]; | |
| 643 | 634 } |
| 615 | 635 } |
| 636 return paramString; | |
| 631 | 637 }; |
| 638 | |
| 984 | 639 /** |
| 640 * returns URL and query string for Scaler | |
| 954 | 641 */ |
| 636 | 642 var getScalerUrl = function (data) { |
| 741 | 643 packParams(data); |
| 653 | 644 var settings = data.settings; |
| 652 | 645 if (settings.scalerBaseUrl == null) { |
| 646 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
|
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|
647 } |
| 636 | 648 var keys = settings.scalerParamNames; |
| 643 | 649 var queryString = getParamString(settings, keys, defaults); |
| 636 | 650 var url = settings.scalerBaseUrl + '?' + queryString; |
| 651 return url; | |
| 652 }; | |
| 653 | |
| 954 | 654 /** returns URL for preview background image |
| 655 * | |
| 656 */ | |
| 657 var getPreviewImgUrl = function (data, moreParams) { | |
| 741 | 658 var settings = data.settings; |
| 795 | 659 var bgOptions = { |
| 954 | 660 dw : settings.previewImgWidth, |
| 661 dh : settings.previewImgHeight | |
| 741 | 662 }; |
| 795 | 663 var bgSettings = $.extend({}, settings, bgOptions); |
| 931 | 664 // filter scaler flags (use only hmir and vmir) |
| 795 | 665 if (bgSettings.mo != null) { |
| 666 var mo = ''; | |
| 667 if (data.scalerFlags.hmir != null) { | |
| 668 mo += 'hmir,'; | |
| 767 | 669 } |
| 795 | 670 if (data.scalerFlags.vmir != null) { |
| 671 mo += 'vmir'; | |
| 672 } | |
| 673 bgSettings.mo = mo; | |
| 743 | 674 } |
| 954 | 675 var params = getParamString(bgSettings, settings.previewImgParamNames, defaults); |
| 743 | 676 var url = settings.scalerBaseUrl + '?' + params; |
| 741 | 677 return url; |
| 678 }; | |
|
745
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hertzhaft
parents:
744
diff
changeset
|
679 |
| 1011 | 680 /** |
| 681 * returns URL and query string for current digilib. | |
| 682 * if digilibPage != null returns URL to page in digilib installation with digilib parameters, | |
| 683 * otherwise using current URL and parameters. | |
| 954 | 684 * |
| 685 */ | |
| 1011 | 686 var getDigilibUrl = function (data, digilibPage) { |
| 643 | 687 packParams(data); |
| 636 | 688 var settings = data.settings; |
| 1011 | 689 var paramList = settings.digilibParamNames; |
| 690 if (digilibPage != null) { | |
| 691 var baseUrl = data.settings.digilibBaseUrl + digilibPage; | |
| 692 } else { | |
| 693 paramList = settings.additionalParamNames.concat(settings.digilibParamNames); | |
| 694 if (settings.suppressParamNames != null) { | |
| 695 // eliminate suppressed parameters from list | |
| 696 paramList = $.map(paramList, function(e, idx) { | |
| 697 if ($.inArray(e, settings.suppressParamNames) >= 0) { | |
| 698 return null; | |
| 699 } else { | |
| 700 return e; | |
| 701 } | |
| 702 }); | |
| 703 } | |
| 704 // take url from current location | |
| 705 var baseUrl = window.location.href; | |
| 706 var pos = baseUrl.indexOf('?'); | |
| 707 if (pos > -1) { | |
| 708 baseUrl = baseUrl.substring(0, pos); | |
| 709 } | |
|
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710 } |
| 1007 | 711 var queryString = getParamString(settings, paramList, defaults); |
| 1011 | 712 return baseUrl + '?' + queryString; |
| 636 | 713 }; |
| 714 | |
| 954 | 715 /** loads image information from digilib server via HTTP |
| 716 * | |
| 717 */ | |
| 797 | 718 var loadImageInfo = function (data) { |
|
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719 var settings = data.settings; |
| 917 | 720 // bind default function (only once) |
| 721 $(data).off('imageInfo', handleImageInfo); | |
| 722 $(data).on('imageInfo', handleImageInfo); | |
| 723 var url = settings.digilibBaseUrl + '/ImgInfo-json.jsp'; | |
|
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724 url += '?' + getParamString(settings, ['fn', 'pn'], defaults); |
| 767 | 725 // TODO: better error handling |
| 785 | 726 $.getJSON(url, function (json) { |
|
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727 console.debug("got json data=", json); |
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728 data.imgInfo = json; |
| 797 | 729 // send event |
| 730 $(data).trigger('imageInfo', [json]); | |
|
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731 }); |
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|
732 }; |
| 775 | 733 |
| 954 | 734 /** processes some parameters into objects and stuff |
| 735 * | |
| 736 */ | |
| 631 | 737 var unpackParams = function (data) { |
| 738 var settings = data.settings; | |
| 636 | 739 // zoom area |
| 631 | 740 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 643 | 741 data.zoomArea = zoomArea; |
| 650 | 742 // mo (Scaler flags) |
| 743 var flags = {}; | |
| 744 if (settings.mo) { | |
| 745 var pa = settings.mo.split(","); | |
| 746 for (var i = 0; i < pa.length ; i++) { | |
| 747 flags[pa[i]] = pa[i]; | |
|
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748 } |
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749 } |
| 650 | 750 data.scalerFlags = flags; |
|
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751 data.scaleMode = getScaleMode(data); |
| 723 | 752 retrieveOptions(data); |
| 655 | 753 }; |
| 754 | |
| 954 | 755 /** put area into parameters |
| 756 * | |
| 757 */ | |
| 822 | 758 var packArea = function (settings, area) { |
| 759 if (!area) return; | |
| 760 // zoom area | |
| 761 settings.wx = cropFloat(area.x); | |
| 762 settings.wy = cropFloat(area.y); | |
| 763 settings.ww = cropFloat(area.width); | |
| 764 settings.wh = cropFloat(area.height); | |
| 765 }; | |
| 766 | |
| 954 | 767 /** pack scaler flags into parameters |
| 768 * | |
| 769 */ | |
| 822 | 770 var packScalerFlags = function (settings, flags) { |
| 771 if (!flags) return; | |
| 772 var mo = ''; | |
| 773 for (var f in flags) { | |
| 774 if (mo) { | |
| 775 mo += ','; | |
| 776 } | |
| 777 mo += f; | |
| 778 } | |
| 779 settings.mo = mo; | |
| 780 }; | |
| 781 | |
| 954 | 782 /** put objects back into parameters |
| 783 * | |
| 784 */ | |
| 631 | 785 var packParams = function (data) { |
| 786 var settings = data.settings; | |
| 822 | 787 packArea(settings, data.zoomArea); |
| 788 packScalerFlags(settings, data.scalerFlags); | |
| 789 // store user interface options in cookie | |
| 723 | 790 storeOptions(data); |
|
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791 // trigger pack handlers |
|
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792 $(data).trigger('pack'); |
| 709 | 793 }; |
| 688 | 794 |
| 954 | 795 /** store digilib options in a cookie |
| 796 * | |
| 797 */ | |
| 723 | 798 var storeOptions = function (data) { |
| 709 | 799 var settings = data.settings; |
| 800 if (data.dlOpts) { | |
| 801 // save digilib settings in options | |
| 802 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
| 803 data.dlOpts.buttons = settings.visibleButtonSets; | |
| 804 var clop = ''; | |
| 805 for (var o in data.dlOpts) { | |
| 806 if (clop) { | |
| 807 clop += '&'; | |
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808 } |
| 709 | 809 clop += o + '=' + data.dlOpts[o]; |
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810 } |
| 785 | 811 if ($.cookie) { |
| 709 | 812 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; |
| 813 console.debug("set cookie=", ck, " value=", clop); | |
| 785 | 814 $.cookie(ck, clop); |
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815 } |
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816 } |
| 785 | 817 if (settings.interactionMode !== 'fullscreen' && $.cookie) { |
| 727 | 818 // store normal parameters in cookie for embedded mode |
| 819 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
| 820 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 821 console.debug("set cookie=", ck, " value=", qs); | |
| 785 | 822 $.cookie(ck, qs); |
| 727 | 823 } |
| 631 | 824 }; |
| 655 | 825 |
| 983 | 826 /** retrieve digilib options from a cookie |
| 954 | 827 * |
| 828 */ | |
| 723 | 829 var retrieveOptions = function (data) { |
| 709 | 830 // clop (digilib options) |
| 831 var opts = {}; | |
| 832 var settings = data.settings; | |
| 785 | 833 if ($.cookie) { |
| 709 | 834 // read from cookie |
| 835 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 785 | 836 var cp = $.cookie(ck); |
| 709 | 837 console.debug("get cookie=", ck, " value=", cp); |
| 838 // in query string format | |
| 839 opts = parseQueryString(cp); | |
|
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840 } |
| 709 | 841 data.dlOpts = opts; |
| 842 // birdview option | |
| 843 if (opts.birdview != null) { | |
| 844 settings.isBirdDivVisible = opts.birdview === '1'; | |
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845 } |
| 709 | 846 // visible button sets |
| 847 if (opts.buttons != null) { | |
| 848 settings.visibleButtonSets = opts.buttons; | |
|
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849 } |
| 711 | 850 }; |
| 709 | 851 |
| 949 | 852 /** (re)load the image with the current settings. |
| 853 * | |
| 854 */ | |
|
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855 var redisplay = function (data) { |
| 636 | 856 var settings = data.settings; |
| 857 if (settings.interactionMode === 'fullscreen') { | |
| 858 // update location.href (browser URL) in fullscreen mode | |
|
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|
859 var url = getDigilibUrl(data); |
| 636 | 860 var history = window.history; |
| 942 | 861 if (data.hasAsyncReload) { |
|
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862 console.debug("faking reload to "+url); |
|
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|
863 // change url without reloading (stateObj, title, url) |
|
890
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|
864 // TODO: we really need to push the state in stateObj and listen to pop-events |
|
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|
865 try { |
| 1015 | 866 history.replaceState({}, '', url); |
| 867 // show busy cursor | |
| 868 $('body').css('cursor', 'progress'); | |
| 869 data.$scaler.css('cursor', 'progress'); | |
| 870 // change img src | |
| 871 var $img = data.$img; | |
| 872 var imgurl = getScalerUrl(data); | |
| 873 $img.attr('src', imgurl); | |
| 874 // trigger load event if image is cached. Doesn't work with Firefox!! | |
| 875 if (data.hasCachedComplete && $img.prop('complete')) { | |
| 876 console.debug("cached img.load"); | |
| 877 $img.trigger('load'); | |
| 878 } | |
| 879 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { | |
| 880 // we need image info, do we have it? | |
| 881 if (data.imgInfo == null) { | |
| 882 loadImageInfo(data); | |
| 883 } | |
| 884 } | |
| 885 // update if we have a preview | |
| 886 if (data.hasPreviewBg) { | |
| 887 $(data).trigger('update'); | |
| 888 } | |
| 889 //FIXME: highlightButtons(data); | |
| 890 // send event | |
| 891 $(data).trigger('redisplay'); | |
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892 } catch (e) { |
| 1015 | 893 console.error("replaceState("+url+") didn't work: "+e); |
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894 // reload window |
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895 window.location = url; |
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896 } |
|
798
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897 } else { |
|
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898 // reload window |
|
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899 window.location = url; |
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|
900 } |
| 636 | 901 } else { |
| 902 // embedded mode -- just change img src | |
| 1015 | 903 // show busy cursor |
| 904 $('body').css('cursor', 'progress'); | |
| 905 data.$scaler.css('cursor', 'progress'); | |
| 906 var $img = data.$img; | |
| 636 | 907 var url = getScalerUrl(data); |
| 949 | 908 $img.attr('src', url); |
| 1015 | 909 // trigger load event if image is cached |
| 910 if ($img.prop('complete')) $img.trigger('load'); | |
| 911 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { | |
| 912 // we need image info, do we have it? | |
| 913 if (data.imgInfo == null) { | |
| 914 loadImageInfo(data); | |
| 915 } | |
| 916 } | |
| 949 | 917 //FIXME: highlightButtons(data); |
| 795 | 918 // send event |
| 919 $(data).trigger('redisplay'); | |
|
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920 } |
| 622 | 921 }; |
| 922 | |
| 949 | 923 /** update display (overlays etc.) |
| 924 * (just triggers "update" event) | |
| 925 */ | |
| 767 | 926 var updateDisplay = function (data) { |
| 947 | 927 // send event |
| 928 $(data).trigger('update'); | |
| 929 }; | |
| 930 | |
| 949 | 931 /** handle "update" display event. |
|
991
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|
932 * updates image transform, etc. |
| 949 | 933 */ |
| 947 | 934 var handleUpdate = function (evt) { |
| 1015 | 935 var data = this; |
| 767 | 936 updateImgTrafo(data); |
| 937 setupZoomDrag(data); | |
| 938 }; | |
| 974 | 939 |
| 984 | 940 /** |
| 941 * returns maximum size for scaler img in fullscreen mode. | |
| 949 | 942 */ |
| 778 | 943 var getFullscreenImgSize = function (data) { |
|
989
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|
944 //var mode = data.settings.interactionMode; |
| 662 | 945 var $win = $(window); |
| 946 var winH = $win.height(); | |
| 779 | 947 var winW = $win.width(); |
|
989
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|
948 // add all current insets |
|
991
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|
949 // accounting for left/right border, body margins and additional requirements |
|
989
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950 var insets = { 'x' : 0, 'y' : 0}; |
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951 for (var n in data.currentInsets) { |
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952 insets.x += data.currentInsets[n].x; |
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953 insets.y += data.currentInsets[n].y; |
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|
954 }; |
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|
955 var imgW = winW - insets.x; |
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|
956 var imgH = winH - insets.y; |
| 998 | 957 console.debug('getFullscreenImgSize - screen w/h:', winW, winH, 'window.width', $win.width(), 'img w/h:', imgW, imgH); |
|
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958 return geom.size(imgW, imgH); |
| 662 | 959 }; |
| 960 | |
| 984 | 961 /** |
| 962 * returns a rectangle.with the fullscreen dimensions | |
| 974 | 963 */ |
| 964 var getFullscreenRect = function (data) { | |
| 965 return geom.rectangle(getFullscreenImgSize(data)); | |
| 966 }; | |
| 967 | |
| 984 | 968 /** |
| 969 * creates HTML structure for digilib in elem | |
| 949 | 970 */ |
| 627 | 971 var setupScalerDiv = function (data) { |
| 972 var settings = data.settings; | |
| 647 | 973 var $elem = data.$elem; |
| 996 | 974 var cssPrefix = settings.cssPrefix; |
| 975 $elem.addClass(cssPrefix+'digilib'); | |
| 728 | 976 var $img; |
| 977 var scalerUrl; | |
| 608 | 978 if (settings.interactionMode === 'fullscreen') { |
| 728 | 979 // fullscreen |
| 995 | 980 $elem.addClass(cssPrefix+'fullscreen'); |
| 778 | 981 var imgSize = getFullscreenImgSize(data); |
| 1012 | 982 data.maxImgSize = imgSize; |
| 650 | 983 // fitwidth/height omits destination height/width |
| 728 | 984 if (data.dlOpts.fitheight == null) { |
| 650 | 985 settings.dw = imgSize.width; |
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986 } |
| 728 | 987 if (data.dlOpts.fitwidth == null) { |
| 650 | 988 settings.dh = imgSize.height; |
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989 } |
| 686 | 990 scalerUrl = getScalerUrl(data); |
| 728 | 991 $img = $('<img/>'); |
| 609 | 992 } else { |
| 728 | 993 // embedded mode -- try to keep img tag |
| 1015 | 994 data.maxImgSize = geom.rectangle($elem).getSize(); |
| 995 | 995 $elem.addClass(cssPrefix+'embedded'); |
| 728 | 996 scalerUrl = getScalerUrl(data); |
| 623 | 997 $img = $elem.find('img'); |
|
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998 if ($img.length > 0) { |
|
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999 var oldUrl = $img.attr('src'); |
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1000 // keep img attributes from html |
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1001 var title = $img.attr('title'); |
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1002 var alt = $img.attr('alt'); |
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1003 if (oldUrl === scalerUrl) { |
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1004 console.debug("img detach:", $img); |
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1005 $img.detach(); |
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1006 } else { |
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1007 $img = $('<img/>'); |
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1008 $img.attr("title", title); |
|
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|
1009 $img.attr("alt", alt); |
| 728 | 1010 } |
|
613
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1011 } else { |
|
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|
1012 $img = $('<img/>'); |
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1013 } |
| 608 | 1014 } |
| 822 | 1015 // create new inner html, keeping buttons and content marked with "keep" class |
| 996 | 1016 $elem.contents(':not(.'+cssPrefix+'keep)').remove(); |
| 995 | 1017 var $scaler = $('<div class="'+cssPrefix+'scaler"/>'); |
| 779 | 1018 // scaler should be the first child element? |
| 1019 $elem.prepend($scaler); | |
|
613
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|
1020 $scaler.append($img); |
| 995 | 1021 $img.addClass(cssPrefix+'pic'); |
| 649 | 1022 data.$scaler = $scaler; |
| 636 | 1023 data.$img = $img; |
| 947 | 1024 // set busy cursor |
| 1025 $('body').css('cursor','progress'); | |
| 1015 | 1026 data.$scaler.css('cursor', 'progress'); |
| 942 | 1027 // set up image load handler before setting the src attribute (IE bug) |
| 687 | 1028 $img.load(scalerImgLoadedHandler(data)); |
| 767 | 1029 $img.error(function () {console.error("error loading scaler image");}); |
| 687 | 1030 $img.attr('src', scalerUrl); |
| 608 | 1031 }; |
| 615 | 1032 |
| 949 | 1033 /** creates HTML structure for the about view in elem |
| 1034 * | |
| 1035 */ | |
|
628
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|
1036 var setupAboutDiv = function (data) { |
| 647 | 1037 var $elem = data.$elem; |
|
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|
1038 var settings = data.settings; |
| 996 | 1039 var $aboutDiv = $('<div class="'+settings.cssPrefix+'about" style="display:none"/>'); |
|
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|
1040 var $header = $('<p>Digilib Image Viewer</p>'); |
| 616 | 1041 var $link = $('<a/>'); |
| 996 | 1042 var $logo = $('<img class="'+settings.cssPrefix+'logo" title="digilib"/>'); |
| 616 | 1043 var $content = $('<p/>'); |
| 1044 $elem.append($aboutDiv); | |
| 1045 $aboutDiv.append($header); | |
| 1046 $aboutDiv.append($link); | |
| 1047 $aboutDiv.append($content); | |
| 1048 $link.append($logo); | |
|
913
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|
1049 logoUrl = settings.logoUrl; |
|
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|
1050 // make relative logoUrl absolute |
|
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|
1051 if (logoUrl.charAt(0) !== '/' && logoUrl.substring(0,3) !== 'http') { |
| 1015 | 1052 logoUrl = settings.digilibBaseUrl + '/' + logoUrl; |
|
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|
1053 } |
|
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|
1054 $logo.attr('src', logoUrl); |
| 635 | 1055 $link.attr('href', settings.homeUrl); |
| 616 | 1056 $content.text('Version: ' + settings.version); |
| 775 | 1057 data.$aboutDiv = $aboutDiv; |
| 635 | 1058 // click hides |
| 917 | 1059 $aboutDiv.on('click.digilib', function () { |
| 775 | 1060 actions['showAboutDiv'](data, false); |
| 710 | 1061 }); |
| 634 | 1062 }; |
| 1063 | |
| 949 | 1064 /** shows some window e.g. 'about' (toggle visibility if show is null) |
| 1065 * | |
| 1066 */ | |
| 635 | 1067 var showDiv = function (isVisible, $div, show) { |
| 645 | 1068 if (show == null) { |
| 635 | 1069 // toggle visibility |
| 1070 isVisible = !isVisible; | |
| 1071 } else { | |
| 1072 // set visibility | |
| 1073 isVisible = show; | |
|
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|
1074 } |
| 635 | 1075 if (isVisible) { |
| 1076 $div.fadeIn(); | |
| 1077 } else { | |
| 1078 $div.fadeOut(); | |
|
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|
1079 } |
| 635 | 1080 return isVisible; |
| 634 | 1081 }; |
| 616 | 1082 |
| 949 | 1083 /** Create Transform from zoom area and image size and parameters. |
| 1084 * Returns Transform between normalized coordinates and image pixel coordinates. | |
| 1085 */ | |
|
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|
1086 var getImgTrafo = function ($img, area, rot, hmir, vmir, mode, data) { |
|
658
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1087 var picrect = geom.rectangle($img); |
| 949 | 1088 // handle pixel-by-pixel and original-size modes |
|
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|
1089 if (mode != null) { |
|
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1090 var imgInfo = data.imgInfo; |
|
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|
1091 if (mode === 'pixel') { |
|
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|
1092 // scaler mo=clip - image area size does not come from ww, wh |
|
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1093 if (imgInfo != null) { |
|
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|
1094 area.width = picrect.width / imgInfo.width; |
|
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|
1095 area.height = picrect.height / imgInfo.height; |
|
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|
1096 } else { |
|
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|
1097 console.error("No image info for pixel mode!"); |
|
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|
1098 } |
|
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|
1099 } |
|
772
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|
1100 if (mode === 'size') { |
|
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|
1101 // scaler mo=osize - image area size does not come from ww, wh |
|
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|
1102 if (imgInfo != null) { |
|
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|
1103 var ddpi = parseFloat(data.settings.ddpi); |
|
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|
1104 area.width = (picrect.width / ddpi) / (imgInfo.width / imgInfo.dpi_x); |
|
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|
1105 area.height = (picrect.height / ddpi) / (imgInfo.height / imgInfo.dpi_y); |
|
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|
1106 } else { |
|
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|
1107 console.error("No image info for original size mode!"); |
|
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|
1108 } |
|
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|
1109 } |
|
763
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|
1110 } |
|
658
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diff
changeset
|
1111 var trafo = geom.transform(); |
| 675 | 1112 // move zoom area offset to center |
|
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diff
changeset
|
1113 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 675 | 1114 // scale zoom area size to [1,1] |
|
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|
1115 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 675 | 1116 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 1117 if (rot || hmir || vmir) { | |
| 1118 // move [0.5,0.5] to center | |
| 1119 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 1120 if (hmir) { | |
| 1121 // mirror about center | |
| 1122 trafo.concat(trafo.getMirror('y')); | |
|
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diff
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|
1123 } |
| 675 | 1124 if (vmir) { |
| 1125 // mirror about center | |
| 1126 trafo.concat(trafo.getMirror('x')); | |
|
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diff
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|
1127 } |
| 675 | 1128 if (rot) { |
| 1129 // rotate around center | |
| 1130 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
|
713
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diff
changeset
|
1131 } |
| 675 | 1132 // move back |
| 1133 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
|
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diff
changeset
|
1134 } |
|
664
d5a5ee4cbf04
work on getting transformation to work with rotation (currently still doesn't)
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663
diff
changeset
|
1135 // scale to screen position and size |
|
658
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diff
changeset
|
1136 trafo.concat(trafo.getScale(picrect)); |
|
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diff
changeset
|
1137 trafo.concat(trafo.getTranslation(picrect)); |
|
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diff
changeset
|
1138 return trafo; |
| 655 | 1139 }; |
|
678
d50d24b7fd95
first step at dragging birdview zoom indicator around
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parents:
677
diff
changeset
|
1140 |
| 949 | 1141 /** update current scaler image transform |
| 1142 */ | |
| 767 | 1143 var updateImgTrafo = function (data) { |
| 1144 var $img = data.$img; | |
| 895 | 1145 if ($img == null) |
| 1146 return; | |
| 1147 var imgLoaded = $.browser.msie | |
| 949 | 1148 ? $img.prop('width') > 0 |
| 1149 : $img.prop('complete'); | |
|
950
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much nicer implementation of preview for scrolling and zooming.
robcast
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diff
changeset
|
1150 if (imgLoaded || data.hasPreviewBg) { |
| 1015 | 1151 // create Transform from current zoomArea and image size |
| 1152 data.imgTrafo = getImgTrafo($img, data.zoomArea, data.settings.rot, | |
| 1153 data.scalerFlags.hmir, data.scalerFlags.vmir, | |
| 1154 data.scaleMode, data); | |
| 1155 console.debug("updateImgTrafo: ", data.imgTrafo); | |
| 1156 } | |
| 767 | 1157 }; |
| 775 | 1158 |
| 949 | 1159 /** return handler for load event of scaler img |
| 1160 * (necessary for closure with data object) | |
| 1161 */ | |
| 767 | 1162 var scalerImgLoadedHandler = function (data) { |
| 1163 return function () { | |
| 1164 var $img = $(this); | |
| 1165 console.debug("scaler img loaded=",$img); | |
| 1166 var $scaler = data.$scaler; | |
|
760
f0be4432f515
primitive plugin extension mechanism - unsure how useful this is
hertzhaft
parents:
755
diff
changeset
|
1167 var imgRect = geom.rectangle($img); |
| 931 | 1168 data.imgRect = imgRect; |
| 1015 | 1169 // reset busy cursor |
| 1170 $('body').css('cursor', 'auto'); | |
| 1171 $scaler.css('cursor', 'auto'); | |
| 957 | 1172 // adjust scaler div size (beware: setting position makes the element relative) |
| 1173 imgRect.getSize().adjustDiv($scaler); | |
| 715 | 1174 // show image in case it was hidden (for example in zoomDrag) |
| 733 | 1175 $img.css('visibility', 'visible'); |
|
1019
287e2d2d2ae8
fix flicker in Firefox by leaving scaler background visible.
robcast
parents:
1018
diff
changeset
|
1176 $scaler.css({'opacity' : '1'}); |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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949
diff
changeset
|
1177 data.hasPreviewBg = false; |
| 767 | 1178 // update display (render marks, etc.) |
| 1179 updateDisplay(data); | |
|
658
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split bird's view code in two more parts, analog to scaler-img code.
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diff
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|
1180 }; |
|
9ddcf0070122
split bird's view code in two more parts, analog to scaler-img code.
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|
1181 }; |
|
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changeset
|
1182 |
| 949 | 1183 /** handle imageInfo loaded event |
| 1184 * | |
| 1185 */ | |
| 797 | 1186 var handleImageInfo = function (evt, json) { |
| 1015 | 1187 console.debug("handleImageInfo:", json); |
| 797 | 1188 var data = this; |
| 1189 updateDisplay(data); | |
| 1190 }; | |
| 813 | 1191 |
| 949 | 1192 /** handle changeZoomArea event |
| 1193 * | |
| 1194 */ | |
| 942 | 1195 var handleChangeZoomArea = function (evt, newZa) { |
| 1015 | 1196 console.debug("handleChangeZoomArea:", newZa); |
| 1197 var data = this; | |
| 1198 // hide all overlays (marks/regions) | |
| 996 | 1199 data.$elem.find('.'+data.settings.cssPrefix+'overlay').hide(); |
| 1015 | 1200 setPreviewBg(data, newZa); |
| 942 | 1201 }; |
| 1015 | 1202 |
| 949 | 1203 /** zoom by the given factor. |
| 1204 * | |
| 1205 */ | |
| 643 | 1206 var zoomBy = function(data, factor) { |
| 1207 var area = data.zoomArea; | |
| 1208 var newarea = area.copy(); | |
| 1209 // scale | |
| 1210 newarea.width /= factor; | |
| 1211 newarea.height /= factor; | |
| 1212 // and recenter | |
| 1213 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 1214 newarea.y -= 0.5 * (newarea.height - area.height); | |
|
735
790a7673bef0
improved some embedded buttons; fixed reset function
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733
diff
changeset
|
1215 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
|
1216 setZoomArea(data, newarea); |
| 972 | 1217 // reset modes |
| 1218 setScaleMode(data, 'screen'); | |
| 1219 setFitMode(data, 'both'); | |
|
644
ee8ccd84c5f8
reload doesn't take list of changed parameters any more
robcast
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643
diff
changeset
|
1220 redisplay(data); |
| 643 | 1221 }; |
| 1222 | |
| 949 | 1223 /** zoom to the area around two clicked points. |
| 1224 * | |
| 1225 */ | |
| 654 | 1226 var zoomArea = function(data) { |
| 1227 $elem = data.$elem; | |
| 1228 $scaler = data.$scaler; | |
| 1229 var pt1, pt2; | |
| 996 | 1230 var $zoomDiv = $('<div class="'+data.settings.cssPrefix+'zoomrect" style="display:none"/>'); |
| 654 | 1231 $elem.append($zoomDiv); |
| 775 | 1232 // $zoomDiv.css(data.settings.zoomrectStyle); |
| 654 | 1233 var picRect = geom.rectangle($scaler); |
| 1234 // FIX ME: is there a way to query the border width from CSS info? | |
| 1235 // rect.x -= 2; // account for overlay borders | |
| 1236 // rect.y -= 2; | |
| 1237 | |
| 1238 var zoomStart = function (evt) { | |
| 1239 pt1 = geom.position(evt); | |
| 1240 // setup and show zoom div | |
| 738 | 1241 pt1.adjustDiv($zoomDiv); |
| 668 | 1242 $zoomDiv.width(0).height(0); |
| 654 | 1243 $zoomDiv.show(); |
| 1244 // register events | |
| 917 | 1245 $elem.on("mousemove.dlZoomArea", zoomMove); |
| 1246 $elem.on("mouseup.dlZoomArea", zoomEnd); | |
| 654 | 1247 return false; |
| 1248 }; | |
| 668 | 1249 |
| 741 | 1250 // mouse move handler |
| 1251 var zoomMove = function (evt) { | |
| 1252 pt2 = geom.position(evt); | |
| 1253 var rect = geom.rectangle(pt1, pt2); | |
| 1254 rect.clipTo(picRect); | |
| 1255 // update zoom div | |
| 1256 rect.adjustDiv($zoomDiv); | |
| 1257 return false; | |
| 1258 }; | |
|
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ad483c008159
move birdview zoom indicator along with zoom drag
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diff
changeset
|
1259 |
| 654 | 1260 // mouseup handler: end moving |
| 1261 var zoomEnd = function (evt) { | |
| 1262 pt2 = geom.position(evt); | |
| 1263 // assume a click and continue if the area is too small | |
| 1264 var clickRect = geom.rectangle(pt1, pt2); | |
| 710 | 1265 if (clickRect.getArea() <= 5) return false; |
| 654 | 1266 // hide zoom div |
| 1267 $zoomDiv.remove(); | |
| 1268 // unregister events | |
| 917 | 1269 $elem.off("mousemove.dlZoomArea", zoomMove); |
| 1270 $elem.off("mouseup.dlZoomArea", zoomEnd); | |
| 654 | 1271 // clip and transform |
| 1272 clickRect.clipTo(picRect); | |
| 1273 var area = data.imgTrafo.invtransform(clickRect); | |
|
951
9c699b6cfcca
preview for ZoomArea. shows distortions when changing aspect ratio.
robcast
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950
diff
changeset
|
1274 setZoomArea(data, area); |
| 972 | 1275 // reset modes |
| 1276 setFitMode(data, 'both'); | |
| 1277 setScaleMode(data, 'screen'); | |
| 654 | 1278 redisplay(data); |
| 1279 return false; | |
| 1280 }; | |
| 668 | 1281 |
|
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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741
diff
changeset
|
1282 // clear old handler (also ZoomDrag) |
| 917 | 1283 $scaler.off('.dlZoomArea'); |
| 1284 $scaler.off(".dlZoomDrag"); | |
| 1285 $elem.off('.dlZoomArea'); | |
| 654 | 1286 // bind start zoom handler |
| 738 | 1287 $scaler.one('mousedown.dlZoomArea', zoomStart); |
| 654 | 1288 }; |
| 647 | 1289 |
|
950
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changeset
|
1290 /** set preview background. |
|
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much nicer implementation of preview for scrolling and zooming.
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changeset
|
1291 * optional newZoomArea scales and moves background to preview. |
| 949 | 1292 */ |
|
950
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diff
changeset
|
1293 var setPreviewBg = function(data, newZoomArea) { |
|
746
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diff
changeset
|
1294 var $scaler = data.$scaler; |
|
2e9a48dc7a0c
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diff
changeset
|
1295 var $img = data.$img; |
|
950
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much nicer implementation of preview for scrolling and zooming.
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changeset
|
1296 var imgTrafo = data.imgTrafo; |
|
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much nicer implementation of preview for scrolling and zooming.
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changeset
|
1297 var scalerPos = geom.position($scaler); |
|
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much nicer implementation of preview for scrolling and zooming.
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changeset
|
1298 var bgRect = null; |
|
746
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diff
changeset
|
1299 // hide the scaler img, show background of div instead |
|
2e9a48dc7a0c
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diff
changeset
|
1300 $img.css('visibility', 'hidden'); |
|
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
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917
diff
changeset
|
1301 // use current image as first background |
|
746
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move zoom-drag background along with birdview indicator
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changeset
|
1302 var scalerCss = { |
| 1015 | 1303 'background-image' : 'url(' + $img.attr('src') + ')', |
|
950
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much nicer implementation of preview for scrolling and zooming.
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changeset
|
1304 'background-repeat' : 'no-repeat', |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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949
diff
changeset
|
1305 'background-position' : '0px 0px', |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1306 'opacity' : '0.7', |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1307 'cursor' : 'move' |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1308 }; |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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parents:
949
diff
changeset
|
1309 if (newZoomArea != null) { |
| 1015 | 1310 // check if aspect ratio has changed |
| 1311 if (Math.abs(newZoomArea.getAspect() - data.zoomArea.getAspect()) > 0.001 ) { | |
| 1312 var newRect = data.imgTrafo.transform(newZoomArea); | |
| 1313 var newAspect = newRect.getAspect(); | |
| 1314 var newSize = data.maxImgSize.fitAspect(newAspect); | |
| 1315 // set scaler to presumed new size | |
| 1316 newSize.adjustDiv($scaler); | |
| 1317 console.debug("adjusting aspect ratio for preview", data.maxImgSize, newSize); | |
| 1318 } | |
| 1319 // get transform for new zoomArea (use 'screen' instead of data.scaleMode) | |
| 1320 imgTrafo = getImgTrafo($scaler, newZoomArea, data.settings.rot, | |
| 1321 data.scalerFlags.hmir, data.scalerFlags.vmir, | |
| 1322 'screen', data); | |
| 1323 // for new background coordinates transform old zoomArea with new Transform | |
| 1324 bgRect = imgTrafo.transform(data.zoomArea); | |
| 1325 // correct offset because background is relative | |
| 1326 bgRect.addPosition(scalerPos.neg()); | |
| 1327 // position background | |
| 1328 scalerCss['background-position'] = Math.round(bgRect.x) + 'px '+ Math.round(bgRect.y) + 'px'; | |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1329 } |
|
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1330 if (data.hasBgSize) { |
| 1015 | 1331 // scale background using CSS3-background-size |
| 1332 if (bgRect != null && (bgRect.height < data.settings.maxBgSize && bgRect.width < data.settings.maxBgSize)) { | |
| 1333 scalerCss[data.bgSizeName] = Math.round(bgRect.width) + 'px ' + Math.round(bgRect.height) + 'px'; | |
| 1334 } else { | |
| 1335 scalerCss[data.bgSizeName] = 'auto'; | |
| 1336 } | |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1337 // additional full-size background using CSS3 |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1338 fullRect = imgTrafo.transform(FULL_AREA); |
|
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1339 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
|
1340 // correct offset because background is relative |
|
751
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
748
diff
changeset
|
1341 fullRect.addPosition(scalerPos.neg()); |
| 954 | 1342 var url = getPreviewImgUrl(data); |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1343 // 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
|
1344 scalerCss['background-image'] += ', url(' + url + ')'; |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1345 scalerCss[data.bgSizeName] += ', ' + Math.round(fullRect.width) + 'px ' + Math.round(fullRect.height) + 'px'; |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1346 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
|
1347 } |
|
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1348 } |
|
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1349 $scaler.css(scalerCss); |
| 942 | 1350 data.hasPreviewBg = true; |
|
929
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
robcast
parents:
928
diff
changeset
|
1351 }; |
| 1015 | 1352 |
| 949 | 1353 /** setup handlers for dragging the zoomed image. |
| 1354 * | |
| 1355 */ | |
| 705 | 1356 var setupZoomDrag = function(data) { |
| 942 | 1357 var startPos, delta; |
| 733 | 1358 var $document = $(document); |
| 795 | 1359 var $data = $(data); |
| 705 | 1360 var $elem = data.$elem; |
| 1361 var $scaler = data.$scaler; | |
| 1362 var $img = data.$img; | |
| 710 | 1363 |
| 733 | 1364 // drag the image and load a new detail on mouse up |
| 705 | 1365 var dragStart = function (evt) { |
| 1015 | 1366 // cancel if not left-click |
| 1367 if (evt.which != 1) return; | |
| 813 | 1368 console.debug("dragstart at=", evt); |
|
737
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
736
diff
changeset
|
1369 // don't start dragging if not zoomed |
|
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
736
diff
changeset
|
1370 if (isFullArea(data.zoomArea)) return false; |
| 813 | 1371 $elem.find(".overlay").hide(); // hide all overlays (marks/regions) |
| 733 | 1372 startPos = geom.position(evt); |
| 741 | 1373 delta = null; |
|
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1374 // set low res background immediately on mousedown |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1375 setPreviewBg(data); |
| 917 | 1376 $document.on("mousemove.dlZoomDrag", dragMove); |
| 1377 $document.on("mouseup.dlZoomDrag", dragEnd); | |
|
713
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more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1378 return false; |
| 705 | 1379 }; |
|
745
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1380 |
| 733 | 1381 // mousemove handler: drag zoomed image |
| 705 | 1382 var dragMove = function (evt) { |
| 1383 var pos = geom.position(evt); | |
| 741 | 1384 delta = startPos.delta(pos); |
|
807
1b1728926534
geometry: overlapsRect() plus some comment clarifications
hertzhaft
parents:
799
diff
changeset
|
1385 // send message event with current zoom position |
|
745
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1386 var za = geom.rectangle($img); |
|
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1387 za.addPosition(delta.neg()); |
| 947 | 1388 // transform back |
| 1389 var newArea = data.imgTrafo.invtransform(za); | |
| 1390 $data.trigger('changeZoomArea', newArea); | |
| 705 | 1391 return false; |
| 1392 }; | |
| 710 | 1393 |
| 733 | 1394 // mouseup handler: reload zoomed image in new position |
| 705 | 1395 var dragEnd = function (evt) { |
| 739 | 1396 $scaler.css('cursor', 'auto'); |
| 917 | 1397 $document.off("mousemove.dlZoomDrag", dragMove); |
| 1398 $document.off("mouseup.dlZoomDrag", dragEnd); | |
| 733 | 1399 if (delta == null || delta.distance() < 2) { |
| 1400 // no movement | |
| 1401 $img.css('visibility', 'visible'); | |
| 741 | 1402 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
| 944 | 1403 data.hasPreviewBg = false; |
| 993 | 1404 // unhide marks etc. |
| 1405 updateDisplay(data); | |
| 733 | 1406 return false; |
| 1407 } | |
| 1408 // get old zoom area (screen coordinates) | |
| 741 | 1409 var za = geom.rectangle($img); |
| 733 | 1410 // move |
| 741 | 1411 za.addPosition(delta.neg()); |
| 733 | 1412 // transform back |
| 1413 var newArea = data.imgTrafo.invtransform(za); | |
|
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1414 data.zoomArea = FULL_AREA.fit(newArea); |
|
708
120ace160386
img reload works for fullscreen, but somehow not precise
hertzhaft
parents:
707
diff
changeset
|
1415 redisplay(data); |
| 705 | 1416 return false; |
| 1417 }; | |
|
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1418 |
| 733 | 1419 // clear old handler |
| 917 | 1420 $document.off(".dlZoomDrag"); |
| 1421 $scaler.off(".dlZoomDrag"); | |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1422 if (! isFullArea(data.zoomArea)) { |
|
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1423 // set handler |
| 917 | 1424 $scaler.on("mousedown.dlZoomDrag", dragStart); |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1425 } |
| 705 | 1426 }; |
| 1427 | |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1428 /** set the zoom area. |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1429 * also triggers "changeZoomArea" event. |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1430 */ |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1431 var setZoomArea = function(data, za) { |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1432 $(data).trigger('changeZoomArea', za); |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1433 data.oldZoomArea = data.zoomArea; |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1434 data.zoomArea = za; |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1435 }; |
| 1012 | 1436 |
| 949 | 1437 /** get image quality as a number (0..2). |
| 1438 * | |
| 1439 */ | |
| 703 | 1440 var getQuality = function (data) { |
| 1441 var flags = data.scalerFlags; | |
| 1442 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
| 1443 return parseInt(q[1], 10); | |
| 706 | 1444 }; |
| 703 | 1445 |
| 949 | 1446 /** set image quality as a number (0..2). |
| 1447 * | |
| 1448 */ | |
| 703 | 1449 var setQuality = function (data, qual) { |
| 1450 var flags = data.scalerFlags; | |
| 1451 // clear flags | |
| 1452 for (var i = 0; i < 3; ++i) { | |
| 1453 delete flags['q'+i]; | |
|
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1454 } |
| 703 | 1455 flags['q'+qual] = 'q'+qual; |
| 706 | 1456 }; |
| 710 | 1457 |
| 949 | 1458 /** get image scale mode (screen, pixel, size). |
| 1459 * | |
| 1460 */ | |
|
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1461 var getScaleMode = function (data) { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1462 if (data.scalerFlags.clip != null) { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1463 return 'pixel'; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1464 } else if (data.scalerFlags.osize != null) { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1465 return 'size'; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1466 } |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1467 // mo=fit is default |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1468 return 'screen'; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1469 }; |
| 775 | 1470 |
| 949 | 1471 /** set image scale mode (screen, pixel, size). |
| 1472 * | |
| 1473 */ | |
|
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1474 var setScaleMode = function (data, mode) { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1475 delete data.scalerFlags.fit; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1476 delete data.scalerFlags.clip; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1477 delete data.scalerFlags.osize; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1478 if (mode === 'pixel') { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1479 data.scalerFlags.clip = 'clip'; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1480 } else if (mode === 'size') { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1481 data.scalerFlags.osize = 'osize'; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1482 } |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1483 // mo=fit is default |
| 972 | 1484 // save mode |
| 1485 data.scaleMode = mode; | |
|
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1486 }; |
| 775 | 1487 |
| 972 | 1488 /** get screen fit mode (width, height, both). |
| 1489 * | |
| 1490 */ | |
| 1491 var getFitMode = function (data) { | |
| 1015 | 1492 if (data.dlOpts.fitwidth != null) { |
| 1493 return "width"; | |
| 1494 } else if (data.dlOpts.fitheight != null) { | |
| 1495 return "height"; | |
| 1496 } | |
| 1497 // "both" is default | |
| 1498 return "both"; | |
| 972 | 1499 }; |
| 1012 | 1500 |
| 972 | 1501 /** |
| 1502 * set screen fit mode (width, height, both). | |
| 1503 */ | |
| 1504 var setFitMode = function (data, mode) { | |
| 984 | 1505 var settings = data.settings; |
| 1012 | 1506 var imgSize = data.maxImgSize; |
| 1015 | 1507 if (mode === 'width') { |
| 1508 data.dlOpts.fitwidth = 1; | |
| 1509 delete data.dlOpts.fitheight; | |
| 1510 if (imgSize != null) { | |
| 1511 // fitwidth omits destination height | |
| 1512 settings.dw = imgSize.width; | |
| 1513 settings.dh = null; | |
| 1514 } | |
| 1515 } else if (mode === 'height') { | |
| 1516 data.dlOpts.fitheight = 1; | |
| 1517 delete data.dlOpts.fitwidth; | |
| 984 | 1518 if (imgSize != null) { |
| 1519 // fitheight omits destination width | |
| 1520 settings.dw = null; | |
| 1521 settings.dh = imgSize.height; | |
| 1522 } | |
| 1015 | 1523 } else { |
| 1524 delete data.dlOpts.fitwidth; | |
| 1525 delete data.dlOpts.fitheight; | |
| 984 | 1526 if (imgSize != null) { |
| 1527 settings.dw = imgSize.width; | |
| 1528 settings.dh = imgSize.height; | |
| 1529 } | |
| 1015 | 1530 } |
| 972 | 1531 }; |
| 1015 | 1532 |
| 949 | 1533 /** sets a key to a value (relative values with +/- if relative=true). |
| 1534 * | |
| 1535 */ | |
| 650 | 1536 var setNumValue = function(settings, key, value) { |
| 716 | 1537 if (value == null) return null; |
|
955
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1538 if (isNumber(value)) { |
|
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1539 settings[key] = value; |
|
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1540 return value; |
|
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1541 } |
|
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1542 var sign = value[0]; |
| 650 | 1543 if (sign === '+' || sign === '-') { |
| 1544 if (settings[key] == null) { | |
|
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1545 // this isn't perfect but still... |
| 650 | 1546 settings[key] = 0; |
|
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1547 } |
| 650 | 1548 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
| 1549 } else { | |
| 1550 settings[key] = value; | |
|
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1551 } |
| 650 | 1552 return settings[key]; |
| 1553 }; | |
| 655 | 1554 |
| 949 | 1555 /** return width of border on $elem. |
| 1556 * assumes equal border width on all sides. | |
| 1557 */ | |
| 775 | 1558 var getBorderWidth = function($elem) { |
| 1559 var border = $elem.outerWidth() - $elem.width(); | |
| 1560 return border/2; | |
| 1561 }; | |
| 1562 | |
| 949 | 1563 /** return if the current zoomarea can be moved further. |
| 1564 * | |
| 1565 */ | |
| 878 | 1566 var canMove = function(data, movx, movy) { |
| 1567 var za = data.zoomArea; | |
| 1568 if (isFullArea(za)) return false; | |
| 1569 var x2 = za.x + za.width; | |
| 1570 var y2 = za.y + za.height; | |
| 949 | 1571 return (((movx < 0) && (za.x > 0)) |
| 878 | 1572 || ((movx > 0) && (x2 < 1.0)) |
| 1573 || ((movy < 0) && (za.y > 0)) | |
| 949 | 1574 || ((movy > 0) && (y2 < 1.0))); |
| 878 | 1575 }; |
| 1576 | |
| 949 | 1577 /** return if area is maximal. |
| 1578 * | |
| 1579 */ | |
| 795 | 1580 var isFullArea = function (area) { |
| 659 | 1581 return (area.width === 1.0) && (area.height === 1.0); |
| 655 | 1582 }; |
| 1583 | |
|
955
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1584 /** return if the argument is a number. |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1585 * from Douglas Crockford, A.10. |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1586 * this is different from $.isNumeric(). |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1587 */ |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1588 var isNumber = function (value) { |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1589 return typeof value === 'number' && isFinite(value); |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
robcast
parents:
954
diff
changeset
|
1590 }; |
| 949 | 1591 /** return number with reduced precision. |
| 1592 * ("crop senseless precision") | |
| 1593 */ | |
| 631 | 1594 var cropFloat = function (x) { |
| 637 | 1595 return parseInt(10000 * x, 10) / 10000; |
| 631 | 1596 }; |
| 655 | 1597 |
| 949 | 1598 /** return string from number with reduced precision. |
| 1599 * | |
| 1600 */ | |
| 813 | 1601 var cropFloatStr = function (x) { |
| 1602 return cropFloat(x).toString(); | |
| 1603 }; | |
| 1604 | |
| 692 | 1605 // fallback for console.log calls |
| 1606 if (customConsole) { | |
| 1607 var logFunction = function(type) { | |
| 1608 return function(){ | |
| 996 | 1609 var $debug = $('#'+defaults.cssPrefix+'debug'); // debug div |
| 692 | 1610 if (!$debug) return; |
| 1611 var args = Array.prototype.slice.call(arguments); | |
| 1612 var argtext = args.join(' '); | |
| 1613 var $logDiv = $('<div/>'); | |
| 1614 $logDiv.addClass(type); | |
| 1615 $logDiv.text(argtext); | |
| 1616 $debug.append($logDiv); | |
| 1617 }; | |
| 1618 }; | |
| 1619 console.log = logFunction('_log'); | |
| 1620 console.debug = logFunction('_debug'); | |
| 1621 console.error = logFunction('_error'); | |
|
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1622 } |
| 692 | 1623 |
| 949 | 1624 /** functions to export to plugins. |
| 1625 */ | |
| 787 | 1626 fn = { |
| 791 | 1627 geometry : geom, |
| 787 | 1628 parseQueryString : parseQueryString, |
| 1629 getScalerUrl : getScalerUrl, | |
| 1630 getParamString : getParamString, | |
| 1631 getDigilibUrl : getDigilibUrl, | |
| 1632 unpackParams : unpackParams, | |
| 1633 packParams : packParams, | |
| 822 | 1634 packArea : packArea, |
| 1635 packScalerFlags : packScalerFlags, | |
| 795 | 1636 storeOptions : storeOptions, |
| 787 | 1637 redisplay : redisplay, |
| 1638 updateDisplay : updateDisplay, | |
| 791 | 1639 showDiv : showDiv, |
| 983 | 1640 setZoomArea : setZoomArea, |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1641 setPreviewBg : setPreviewBg, |
| 787 | 1642 getImgTrafo : getImgTrafo, |
| 1643 getQuality : getQuality, | |
| 1644 setQuality : setQuality, | |
| 1645 getScaleMode : getScaleMode, | |
| 1646 setScaleMode : setScaleMode, | |
| 972 | 1647 getFitMode : getFitMode, |
| 1648 setFitMode : setFitMode, | |
| 878 | 1649 canMove : canMove, |
| 795 | 1650 isFullArea : isFullArea, |
| 978 | 1651 isNumber : isNumber, |
| 974 | 1652 getFullscreenRect : getFullscreenRect, |
| 813 | 1653 getBorderWidth : getBorderWidth, |
| 1654 cropFloat : cropFloat, | |
| 1655 cropFloatStr : cropFloatStr | |
| 787 | 1656 }; |
| 788 | 1657 |
|
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1658 // hook digilib plugin into jquery |
| 785 | 1659 $.fn.digilib = function (action) { |
|
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1660 // plugin extension mechanism, called when the plugins' code is read |
| 786 | 1661 if (action === 'plugin') { |
| 1662 var plugin = arguments[1]; | |
| 1663 // each plugin needs a name | |
| 1664 if (plugin.name != null) { | |
| 1665 plugins[plugin.name] = plugin; | |
|
793
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1666 // share common objects |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1667 plugin.defaults = defaults; |
| 947 | 1668 plugin.buttons = buttons; |
|
793
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1669 plugin.actions = actions; |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1670 plugin.fn = fn; |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1671 plugin.plugins = plugins; |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1672 // and install |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1673 if (typeof plugin.install === 'function') { |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1674 plugin.install(plugin); |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1675 } |
| 786 | 1676 } |
|
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1677 // plugins will be initialised when action.init is called |
|
760
f0be4432f515
primitive plugin extension mechanism - unsure how useful this is
hertzhaft
parents:
755
diff
changeset
|
1678 } else if (actions[action]) { |
|
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1679 // call action on this with the remaining arguments (inserting data as first argument) |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1680 var $elem = $(this); |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1681 var data = $elem.data('digilib'); |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1682 var args = Array.prototype.slice.call(arguments, 1); |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1683 args.unshift(data); |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1684 return actions[action].apply(this, args); |
|
798
b07d1824ca2a
fullscreen mode works without reload on browsers supporting history.pushstate!
robcast
parents:
797
diff
changeset
|
1685 } else if (typeof action === 'object' || !action) { |
|
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1686 // call init on the digilib jQuery object |
|
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1687 return actions.init.apply(this, arguments); |
| 605 | 1688 } else { |
|
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1689 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
|
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1690 } |
| 605 | 1691 }; |
| 692 | 1692 |
|
991
497ab03868ab
moved marks to separate plugin. (pack and unpack is still in digilib.js)
robcast
parents:
990
diff
changeset
|
1693 })(jQuery); |