Mercurial > hg > digilib-old
annotate webapp/src/main/webapp/jquery/jquery.digilib.js @ 974:678313a989a9
first part of calibration dialog
| author | hertzhaft |
|---|---|
| date | Thu, 26 Jan 2012 15:06:00 +0100 |
| parents | 2ad5ba781e88 |
| children | c01876d65bb8 |
| 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 |
| 956 | 41 'version' : 'jquery.digilib.js 2.1b2', |
| 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, |
| 610 | 50 // list of Scaler parameters |
| 627 | 51 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
| 52 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
| 53 // Scaler parameter defaults | |
| 643 | 54 'pn' : 1, |
| 627 | 55 'ww' : 1.0, |
| 56 'wh' : 1.0, | |
| 57 'wx' : 0.0, | |
| 58 'wy' : 0.0, | |
| 59 'ws' : 1.0, | |
| 643 | 60 'mo' : '', |
| 61 'rot' : 0, | |
| 62 'cont' : 0, | |
| 63 'brgt' : 0, | |
| 64 'rgbm' : '0/0/0', | |
| 65 'rgba' : '0/0/0', | |
| 66 'ddpi' : null, | |
| 67 'ddpix' : null, | |
| 68 'ddpiy' : null, | |
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69 // list of digilib parameters |
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70 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','ddpi','mk','clop'], |
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71 // digilib parameter defaults |
| 643 | 72 'mk' : '', |
| 650 | 73 'clop' : '', |
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74 // list of additional parameters (for page outside of digilib) |
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75 'additionalParamNames' : [], |
| 914 | 76 // list of parameters to suppress when generating page URL |
| 77 'suppressParamNames' : null, | |
| 643 | 78 // mode of operation: |
| 79 // fullscreen = take parameters from page URL, keep state in page URL | |
| 80 // embedded = take parameters from Javascript options, keep state inside object | |
| 610 | 81 'interactionMode' : 'fullscreen', |
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82 // arrow bar overlays for moving the zoomed area |
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83 'showZoomArrows' : true, |
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84 // zoom arrow bar minimal width (for small images) |
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85 'zoomArrowMinWidth' : 6, |
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86 // zoom arrow bar standard width |
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87 'zoomArrowWidth' : 32, |
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88 // by what percentage should the arrows move the zoomed area? |
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89 'zoomArrowMoveFactor' : 0.5, |
| 616 | 90 // is the "about" window shown? |
| 741 | 91 'isAboutDivVisible' : false, |
| 954 | 92 // default size of preview image for drag-scroll (same as Bird's Eye View image) |
| 93 'previewImgWidth' : 200, | |
| 94 'previewImgHeight' : 200, | |
| 95 // maximum width or height of preview background image for drag-scroll | |
| 778 | 96 'maxBgSize' : 10000, |
| 795 | 97 // parameters used by background image |
| 954 | 98 'previewImgParamNames' : ['fn','pn','dw','dh','mo','rot'], |
| 856 | 99 // reserved space in full page display (default value accounts for vertical scrollbar) |
| 785 | 100 'scalerInset' : 10 |
| 610 | 101 }; |
| 655 | 102 |
| 786 | 103 // list of plugins |
| 104 var plugins = {}; | |
| 787 | 105 // object to export functions to plugins |
| 948 | 106 var fn = null; |
| 786 | 107 // affine geometry plugin stub |
| 948 | 108 var geom = null; |
| 944 | 109 // rectangle with maximum zoom area |
| 948 | 110 var FULL_AREA = null; |
| 944 | 111 // limit for float comparison |
| 947 | 112 var EPSILON = 0.0001; |
| 113 // list of buttons | |
| 114 var buttons = {}; | |
| 655 | 115 |
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116 var actions = { |
| 954 | 117 |
| 118 /** init: digilib initialization | |
| 119 * | |
| 120 * @param options | |
| 121 * @returns | |
| 122 */ | |
| 668 | 123 init : function(options) { |
| 786 | 124 // import geometry classes |
| 125 if (plugins.geometry == null) { | |
| 126 $.error("jquery.digilib.geometry plugin not found!"); | |
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127 // last straw: old version |
| 785 | 128 geom = dlGeometry(); |
| 129 } else { | |
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130 // geometry plugin puts classes in the shared fn |
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131 geom = fn.geometry; |
| 785 | 132 } |
| 133 FULL_AREA = geom.rectangle(0, 0, 1, 1); | |
| 788 | 134 |
| 668 | 135 // settings for this digilib instance are merged from defaults and options |
| 136 var settings = $.extend({}, defaults, options); | |
| 137 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
| 138 var queryParams = {}; | |
| 139 if (isFullscreen) { | |
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140 queryParams = parseQueryParams(); |
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141 // filter additional parameters |
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142 for (var p in queryParams) { |
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143 if ($.inArray(p, settings.digilibParamNames) < 0) { |
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144 settings.additionalParamNames.push(p); |
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145 } |
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146 } |
| 668 | 147 } |
| 148 return this.each(function() { | |
| 149 var $elem = $(this); | |
| 150 var data = $elem.data('digilib'); | |
| 688 | 151 var params, elemSettings; |
| 668 | 152 // if the plugin hasn't been initialized yet |
| 153 if (!data) { | |
| 154 // merge query parameters | |
| 155 if (isFullscreen) { | |
| 688 | 156 params = queryParams; |
| 668 | 157 } else { |
| 688 | 158 params = parseImgParams($elem); |
| 785 | 159 if ($.cookie) { |
| 727 | 160 // retrieve params from cookie |
| 161 var ck = "digilib-embed:fn:" + escape(params.fn) + ":pn:" + (params.pn || '1'); | |
| 785 | 162 var cs = $.cookie(ck); |
| 727 | 163 console.debug("get cookie=", ck, " value=", cs); |
| 164 if (cs) { | |
| 165 var cp = parseQueryString(cs); | |
| 728 | 166 // ignore fn and pn from cookie TODO: should we keep pn? |
| 167 delete cp.fn; | |
| 168 delete cp.pn; | |
| 785 | 169 $.extend(params, cp); |
| 727 | 170 } |
| 171 } | |
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172 } |
| 856 | 173 // setup $elem.data, needs "deep copy" because of nesting |
| 849 | 174 elemSettings = $.extend(true, {}, settings, params); |
| 697 | 175 data = { |
| 856 | 176 // let $(this) know about $(this) :-) |
| 668 | 177 $elem : $elem, |
| 856 | 178 // let $elem have its own copy of settings |
| 668 | 179 settings : elemSettings, |
| 856 | 180 // and of the URL query parameters |
| 965 | 181 queryParams : params |
| 668 | 182 }; |
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183 // store in jQuery data element |
| 668 | 184 $elem.data('digilib', data); |
| 949 | 185 } else { |
| 186 // data exists | |
| 187 elemSettings = data.settings; | |
| 668 | 188 } |
| 189 unpackParams(data); | |
| 744 | 190 // check if browser knows *background-size |
| 741 | 191 for (var bs in {'':1, '-moz-':1, '-webkit-':1, '-o-':1}) { |
| 192 if ($elem.css(bs+'background-size')) { | |
| 193 data.hasBgSize = true; | |
| 194 data.bgSizeName = bs+'background-size'; | |
| 195 break; | |
| 196 } | |
| 197 } | |
| 944 | 198 data.hasPreviewBg = false; |
| 942 | 199 // check if browser supports AJAX-like URL-replace without reload |
| 200 data.hasAsyncReload = (typeof history.replaceState === 'function'); | |
| 744 | 201 // check digilib base URL |
| 202 if (elemSettings.digilibBaseUrl == null) { | |
| 203 if (isFullscreen) { | |
| 204 // take current host | |
| 205 var url = window.location.toString(); | |
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206 // assume the page lives in [webapp]/jquery/ |
| 915 | 207 var pos = url.indexOf('/jquery/'); |
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208 if (pos > 0) { |
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209 elemSettings.digilibBaseUrl = url.substring(0, pos); |
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210 } |
| 744 | 211 } else { |
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212 // may be we got the scaler URL from the img |
| 744 | 213 var url = elemSettings.scalerBaseUrl; |
| 214 if (url) { | |
| 215 // build it from scaler URL | |
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216 var pos = url.indexOf('/servlet/Scaler'); |
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217 elemSettings.digilibBaseUrl = url.substring(0, pos); |
| 744 | 218 } |
| 219 } | |
| 220 } | |
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221 // check scaler base URL |
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222 if (elemSettings.scalerBaseUrl == null) { |
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223 if (elemSettings.digilibBaseUrl) { |
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224 elemSettings.scalerBaseUrl = elemSettings.digilibBaseUrl + '/servlet/Scaler'; |
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225 } |
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226 } |
| 947 | 227 // set up event handlers |
| 228 $(data).on('update', handleUpdate); // handleUpdate needs to be the first handler for update | |
| 229 $(data).on('changeZoomArea', handleChangeZoomArea); | |
| 786 | 230 // initialise plugins |
| 787 | 231 for (n in plugins) { |
| 232 var p = plugins[n]; | |
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233 if (typeof p.init === 'function') { |
| 946 | 234 // call the plugins init() method |
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235 p.init(data); |
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236 } |
| 786 | 237 } |
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238 // get image info from server if needed |
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239 if (data.scaleMode === 'pixel' || data.scaleMode === 'size') { |
| 797 | 240 loadImageInfo(data); // triggers "imageInfo" on completion |
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241 } |
| 947 | 242 // create HTML structure for scaler |
| 779 | 243 setupScalerDiv(data); |
| 668 | 244 // about window creation - TODO: could be deferred? restrict to only one item? |
| 245 setupAboutDiv(data); | |
| 856 | 246 // arrow overlays for moving zoomed detail |
| 247 setupZoomArrows(data); | |
| 795 | 248 // send setup event |
| 249 $(data).trigger('setup'); | |
| 668 | 250 }); |
| 251 }, | |
| 252 | |
| 954 | 253 /** destroy: clean up digilib |
| 254 * | |
| 255 * @param data | |
| 256 * @returns | |
| 257 */ | |
| 668 | 258 destroy : function(data) { |
| 259 return this.each(function(){ | |
| 260 var $elem = $(this); | |
| 917 | 261 $(window).off('.digilib'); // unbind all digilibs(?) |
| 668 | 262 data.digilib.remove(); |
| 263 $elem.removeData('digilib'); | |
| 264 }); | |
| 265 }, | |
| 266 | |
| 954 | 267 /** show or hide the 'about' window |
| 268 * | |
| 269 * @param data | |
| 270 * @param show | |
| 271 */ | |
| 668 | 272 showAboutDiv : function(data, show) { |
| 765 | 273 var on = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); |
| 274 data.settings.isAboutDivVisible = on; | |
| 946 | 275 //FIXME: highlightButtons(data, 'help', on); |
| 668 | 276 }, |
| 655 | 277 |
| 954 | 278 /** goto given page nr (+/-: relative) |
| 279 * | |
| 280 * @param data | |
| 281 * @param pageNr | |
| 282 * @returns {Boolean} | |
| 283 */ | |
| 668 | 284 gotoPage : function (data, pageNr) { |
| 285 var settings = data.settings; | |
| 286 var oldpn = settings.pn; | |
| 716 | 287 if (pageNr == null) { |
| 288 pageNr = window.prompt("Goto page number", oldpn); | |
| 289 } | |
| 668 | 290 var pn = setNumValue(settings, "pn", pageNr); |
| 291 if (pn == null) return false; // nothing happened | |
| 292 if (pn < 1) { | |
| 293 alert("no such page (page number too low)"); | |
| 294 settings.pn = oldpn; | |
| 295 return false; | |
| 296 } | |
| 767 | 297 // TODO: how do we get pt? |
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298 if (settings.pt != null) { |
| 668 | 299 if (pn > settings.pt) { |
| 300 alert("no such page (page number too high)"); | |
| 623 | 301 settings.pn = oldpn; |
| 302 return false; | |
| 634 | 303 } |
| 668 | 304 } |
| 305 // reset mk and others(?) | |
| 306 data.marks = []; | |
| 927 | 307 data.zoomArea = FULL_AREA.copy(); |
| 668 | 308 // then reload |
| 309 redisplay(data); | |
| 310 }, | |
| 654 | 311 |
| 954 | 312 /** zoom by a given factor |
| 313 * | |
| 314 * @param data | |
| 315 * @param factor | |
| 316 */ | |
| 668 | 317 zoomBy : function (data, factor) { |
| 318 zoomBy(data, factor); | |
| 319 }, | |
| 647 | 320 |
| 954 | 321 /** zoom to area (or interactive) |
| 322 * | |
| 323 * @param data | |
| 324 * @param area | |
| 325 */ | |
| 767 | 326 zoomArea : function (data, area) { |
| 327 if (area == null) { | |
| 328 // interactively | |
| 329 zoomArea(data); | |
| 330 } else { | |
| 331 data.zoomArea = geom.rectangle(area); | |
| 332 redisplay(data); | |
| 333 } | |
| 668 | 334 }, |
| 650 | 335 |
| 954 | 336 /** zoom out to full page |
| 337 * | |
| 338 * @param data | |
| 339 * @param mode | |
| 340 */ | |
| 668 | 341 zoomFull : function (data, mode) { |
| 917 | 342 data.zoomArea = FULL_AREA.copy(); |
| 972 | 343 setFitMode(data, mode); |
| 344 // zoom full only works in screen mode | |
| 345 setScaleMode(data, 'screen'); | |
| 668 | 346 redisplay(data); |
| 347 }, | |
| 348 | |
| 954 | 349 /** move zoomed area |
| 350 * | |
| 351 * @param data | |
| 352 * @param dx | |
| 353 * @param dy | |
| 354 */ | |
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355 moveZoomArea : function (data, dx, dy) { |
| 944 | 356 var za = data.zoomArea.copy(); |
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357 var factor = data.settings.zoomArrowMoveFactor; |
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358 var deltaX = dx * factor * za.width; |
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359 var deltaY = dy * factor * za.height; |
| 931 | 360 var delta = geom.position(deltaX, deltaY); |
| 361 za.addPosition(delta); | |
| 944 | 362 za = FULL_AREA.fit(za); |
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363 setZoomArea(data, za); |
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364 redisplay(data); |
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365 }, |
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366 |
| 954 | 367 /** set a mark by clicking (or giving a position) |
| 368 * | |
| 369 * @param data | |
| 370 * @param mpos | |
| 371 */ | |
| 668 | 372 setMark : function (data, mpos) { |
| 373 if (mpos == null) { | |
| 374 // interactive | |
| 375 setMark(data); | |
| 376 } else { | |
| 377 // use position | |
| 378 data.marks.push(pos); | |
| 663 | 379 redisplay(data); |
| 604 | 380 } |
| 668 | 381 }, |
| 382 | |
| 954 | 383 /** remove the last mark |
| 384 * | |
| 385 * @param data | |
| 386 */ | |
| 668 | 387 removeMark : function (data) { |
| 388 data.marks.pop(); | |
| 389 redisplay(data); | |
| 390 }, | |
| 391 | |
| 954 | 392 /** mirror the image |
| 393 * | |
| 394 * @param data | |
| 395 * @param mode | |
| 396 */ | |
| 668 | 397 mirror : function (data, mode) { |
| 398 var flags = data.scalerFlags; | |
| 399 if (mode === 'h') { | |
| 400 if (flags.hmir) { | |
| 401 delete flags.hmir; | |
| 402 } else { | |
| 403 flags.hmir = 1; | |
| 404 } | |
| 405 } else { | |
| 406 if (flags.vmir) { | |
| 407 delete flags.vmir; | |
| 408 } else { | |
| 409 flags.vmir = 1; | |
| 410 } | |
| 411 } | |
| 412 redisplay(data); | |
| 413 }, | |
| 650 | 414 |
| 954 | 415 /** rotate the image |
| 416 * | |
| 417 * @param data | |
| 418 * @param angle | |
| 419 */ | |
| 668 | 420 rotate : function (data, angle) { |
| 421 var rot = data.settings.rot; | |
| 422 if (angle == null) { | |
| 423 angle = window.prompt("Rotation angle:", rot); | |
| 424 } | |
| 425 data.settings.rot = angle; | |
| 426 redisplay(data); | |
| 427 }, | |
| 428 | |
| 954 | 429 /** change brightness |
| 430 * | |
| 431 * @param data | |
| 432 * @param factor | |
| 433 */ | |
| 668 | 434 brightness : function (data, factor) { |
| 435 var brgt = data.settings.brgt; | |
| 436 if (factor == null) { | |
| 437 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 438 } | |
| 439 data.settings.brgt = factor; | |
| 440 redisplay(data); | |
| 441 }, | |
| 442 | |
| 954 | 443 /** change contrast |
| 444 * | |
| 445 * @param data | |
| 446 * @param factor | |
| 447 */ | |
| 668 | 448 contrast : function (data, factor) { |
| 449 var cont = data.settings.cont; | |
| 450 if (factor == null) { | |
| 451 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 452 } | |
| 453 data.settings.cont = factor; | |
| 454 redisplay(data); | |
| 688 | 455 }, |
| 710 | 456 |
| 954 | 457 /** reset image parameters to defaults |
| 458 * TODO: improve this! | |
| 459 * | |
| 460 * @param data | |
| 461 */ | |
| 688 | 462 reset : function (data) { |
| 463 var settings = data.settings; | |
| 464 var paramNames = settings.digilibParamNames; | |
| 465 var params = data.queryParams; | |
| 466 // delete all digilib parameters | |
| 467 for (var i = 0; i < paramNames.length; i++) { | |
| 468 var paramName = paramNames[i]; | |
| 469 delete settings[paramName]; | |
|
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470 } |
|
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471 settings.fn = params.fn || ''; // no default defined |
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472 settings.pn = params.pn || defaults.pn; |
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473 settings.dw = params.dw; |
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474 settings.dh = params.dh; |
| 709 | 475 settings.isBirdDivVisible = false; |
| 946 | 476 settings.visibleButtonSets = 1; // FIXME |
|
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477 // resets zoomArea, marks, scalerflags |
| 917 | 478 data.zoomArea = FULL_AREA.copy(); |
|
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479 data.marks = []; |
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480 data.scalerFlags = {}; |
| 712 | 481 delete data.dlOpts.fitwidth; |
| 482 delete data.dlOpts.fitheight; | |
| 688 | 483 redisplay(data); |
| 689 | 484 }, |
| 485 | |
| 954 | 486 /** presents a reference url (returns value if noprompt) |
| 487 * | |
| 488 * @param data | |
| 489 * @param noprompt | |
| 490 * @returns | |
| 491 */ | |
| 703 | 492 reference : function (data, noprompt) { |
| 744 | 493 var url = getDigilibUrl(data); |
| 703 | 494 if (noprompt == null) { |
| 495 window.prompt("URL reference to the current view", url); | |
| 496 } | |
| 497 return url; | |
| 498 }, | |
| 710 | 499 |
| 954 | 500 /** set image quality |
| 501 * | |
| 502 * @param data | |
| 503 * @param qual | |
| 504 */ | |
| 748 | 505 setQuality : function (data, qual) { |
| 703 | 506 var oldq = getQuality(data); |
| 507 if (qual == null) { | |
| 508 qual = window.prompt("Image quality (0..2)", oldq); | |
| 509 } | |
| 510 qual = parseInt(qual, 10); | |
| 511 if (qual >= 0 && qual <= 2) { | |
| 512 setQuality(data, qual); | |
| 513 redisplay(data); | |
| 514 } | |
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515 }, |
|
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516 |
| 954 | 517 /** calibrate (only faking) |
| 518 * | |
| 519 * @param data | |
| 520 * @param res | |
| 521 */ | |
|
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522 calibrate : function (data, res) { |
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523 var oldRes = data.settings.ddpi; |
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524 if (res == null) { |
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525 res = window.prompt("Display resolution (dpi)", oldRes); |
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526 } |
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527 if (res != null) { |
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528 data.settings.ddpi = res; |
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529 redisplay(data); |
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530 } |
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531 }, |
| 775 | 532 |
| 954 | 533 /** set image scale mode |
| 534 * | |
| 535 * @param data | |
| 536 * @param mode | |
| 537 */ | |
|
761
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538 setScaleMode : function (data, mode) { |
|
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539 var oldM = getScaleMode(data); |
|
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540 if (mode == null) { |
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541 mode = window.prompt("Image scale mode (screen, pixel, size)", oldM); |
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542 } |
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543 if (mode != null) { |
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544 setScaleMode(data, mode); |
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545 redisplay(data); |
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546 } |
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547 } |
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548 // end of actions |
| 605 | 549 }; |
| 604 | 550 |
| 954 | 551 /** return parameters from page url |
| 552 * | |
| 553 */ | |
| 607 | 554 var parseQueryParams = function() { |
| 636 | 555 return parseQueryString(window.location.search.slice(1)); |
| 556 }; | |
| 655 | 557 |
| 954 | 558 /** returns parameters from embedded img-element |
| 559 * | |
| 560 */ | |
| 607 | 561 var parseImgParams = function($elem) { |
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562 var src = $elem.find('img').first().attr('src'); |
| 710 | 563 if (!src) return null; |
| 607 | 564 var pos = src.indexOf('?'); |
| 565 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 566 var scalerUrl = src.substring(0, pos); | |
| 627 | 567 var params = parseQueryString(query); |
| 568 params.scalerBaseUrl = scalerUrl; | |
| 569 return params; | |
| 636 | 570 }; |
| 607 | 571 |
| 954 | 572 /** parses query parameter string into parameter object |
| 573 * | |
| 574 */ | |
| 607 | 575 var parseQueryString = function(query) { |
| 701 | 576 var params = {}; |
| 577 if (query == null) return params; | |
| 607 | 578 var pairs = query.split("&"); |
| 636 | 579 //var keys = []; |
| 607 | 580 for (var i = 0; i < pairs.length; i++) { |
| 581 var pair = pairs[i].split("="); | |
| 582 if (pair.length === 2) { | |
| 627 | 583 params[pair[0]] = pair[1]; |
| 636 | 584 //keys.push(pair[0]); |
| 634 | 585 } |
| 636 | 586 } |
| 627 | 587 return params; |
| 636 | 588 }; |
| 668 | 589 |
| 954 | 590 /** return a query string from key names from a parameter hash |
| 591 * (ignores keys if the same value is in defaults) | |
| 592 * | |
| 593 */ | |
| 643 | 594 var getParamString = function (settings, keys, defaults) { |
| 615 | 595 var paramString = ''; |
| 650 | 596 var nx = false; |
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597 for (var i = 0; i < keys.length; ++i) { |
| 615 | 598 var key = keys[i]; |
| 663 | 599 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 615 | 600 // first param gets no '&' |
| 650 | 601 if (nx) { |
| 602 paramString += '&'; | |
| 603 } else { | |
| 604 nx = true; | |
| 605 } | |
| 615 | 606 // add parm=val |
| 607 paramString += key + '=' + settings[key]; | |
| 643 | 608 } |
| 615 | 609 } |
| 610 return paramString; | |
| 631 | 611 }; |
| 612 | |
| 954 | 613 /** returns URL and query string for Scaler |
| 614 * | |
| 615 */ | |
| 636 | 616 var getScalerUrl = function (data) { |
| 741 | 617 packParams(data); |
| 653 | 618 var settings = data.settings; |
| 652 | 619 if (settings.scalerBaseUrl == null) { |
| 620 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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621 } |
| 636 | 622 var keys = settings.scalerParamNames; |
| 643 | 623 var queryString = getParamString(settings, keys, defaults); |
| 636 | 624 var url = settings.scalerBaseUrl + '?' + queryString; |
| 625 return url; | |
| 626 }; | |
| 627 | |
| 954 | 628 /** returns URL for preview background image |
| 629 * | |
| 630 */ | |
| 631 var getPreviewImgUrl = function (data, moreParams) { | |
| 741 | 632 var settings = data.settings; |
| 795 | 633 var bgOptions = { |
| 954 | 634 dw : settings.previewImgWidth, |
| 635 dh : settings.previewImgHeight | |
| 741 | 636 }; |
| 795 | 637 var bgSettings = $.extend({}, settings, bgOptions); |
| 931 | 638 // filter scaler flags (use only hmir and vmir) |
| 795 | 639 if (bgSettings.mo != null) { |
| 640 var mo = ''; | |
| 641 if (data.scalerFlags.hmir != null) { | |
| 642 mo += 'hmir,'; | |
| 767 | 643 } |
| 795 | 644 if (data.scalerFlags.vmir != null) { |
| 645 mo += 'vmir'; | |
| 646 } | |
| 647 bgSettings.mo = mo; | |
| 743 | 648 } |
| 954 | 649 var params = getParamString(bgSettings, settings.previewImgParamNames, defaults); |
| 743 | 650 var url = settings.scalerBaseUrl + '?' + params; |
| 741 | 651 return url; |
| 652 }; | |
|
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653 |
| 954 | 654 /** returns URL and query string for current digilib |
| 655 * | |
| 656 */ | |
|
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657 var getDigilibUrl = function (data) { |
| 643 | 658 packParams(data); |
| 636 | 659 var settings = data.settings; |
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660 var paramList = settings.additionalParamNames.concat(settings.digilibParamNames); |
| 914 | 661 if (settings.suppressParamNames != null) { |
| 662 // eliminate suppressed parameters from list | |
| 663 paramList = $.map(paramList, function(e, idx) { | |
| 664 if ($.inArray(e, settings.suppressParamNames) >= 0) { | |
| 665 return null; | |
| 666 } else { | |
| 667 return e; | |
| 668 } | |
| 669 }); | |
| 670 } | |
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671 var queryString = getParamString(settings, paramList, defaults); |
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672 // take url from current location |
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673 var url = window.location.href; |
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674 var pos = url.indexOf('?'); |
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675 if (pos > -1) { |
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676 url = url.substring(0, pos); |
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677 } |
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678 return url + '?' + queryString; |
| 636 | 679 }; |
| 680 | |
| 954 | 681 /** loads image information from digilib server via HTTP |
| 682 * | |
| 683 */ | |
| 797 | 684 var loadImageInfo = function (data) { |
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685 var settings = data.settings; |
| 917 | 686 // bind default function (only once) |
| 687 $(data).off('imageInfo', handleImageInfo); | |
| 688 $(data).on('imageInfo', handleImageInfo); | |
| 689 var url = settings.digilibBaseUrl + '/ImgInfo-json.jsp'; | |
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690 url += '?' + getParamString(settings, ['fn', 'pn'], defaults); |
| 767 | 691 // TODO: better error handling |
| 785 | 692 $.getJSON(url, function (json) { |
|
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693 console.debug("got json data=", json); |
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694 data.imgInfo = json; |
| 797 | 695 // send event |
| 696 $(data).trigger('imageInfo', [json]); | |
|
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697 }); |
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698 }; |
| 775 | 699 |
| 954 | 700 /** processes some parameters into objects and stuff |
| 701 * | |
| 702 */ | |
| 631 | 703 var unpackParams = function (data) { |
| 704 var settings = data.settings; | |
| 636 | 705 // zoom area |
| 631 | 706 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 643 | 707 data.zoomArea = zoomArea; |
| 636 | 708 // marks |
| 631 | 709 var marks = []; |
| 949 | 710 var pa; |
| 650 | 711 if (settings.mk) { |
| 712 var mk = settings.mk; | |
| 713 if (mk.indexOf(";") >= 0) { | |
| 949 | 714 pa = mk.split(";"); // old format with ";" |
| 650 | 715 } else { |
| 949 | 716 pa = mk.split(","); // new format |
|
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717 } |
| 650 | 718 for (var i = 0; i < pa.length ; i++) { |
| 719 var pos = pa[i].split("/"); | |
| 720 if (pos.length > 1) { | |
| 721 marks.push(geom.position(pos[0], pos[1])); | |
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722 } |
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723 } |
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724 } |
| 643 | 725 data.marks = marks; |
| 650 | 726 // mo (Scaler flags) |
| 727 var flags = {}; | |
| 728 if (settings.mo) { | |
| 729 var pa = settings.mo.split(","); | |
| 730 for (var i = 0; i < pa.length ; i++) { | |
| 731 flags[pa[i]] = pa[i]; | |
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732 } |
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733 } |
| 650 | 734 data.scalerFlags = flags; |
|
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735 data.scaleMode = getScaleMode(data); |
| 723 | 736 retrieveOptions(data); |
| 655 | 737 }; |
| 738 | |
| 954 | 739 /** put area into parameters |
| 740 * | |
| 741 */ | |
| 822 | 742 var packArea = function (settings, area) { |
| 743 if (!area) return; | |
| 744 // zoom area | |
| 745 settings.wx = cropFloat(area.x); | |
| 746 settings.wy = cropFloat(area.y); | |
| 747 settings.ww = cropFloat(area.width); | |
| 748 settings.wh = cropFloat(area.height); | |
| 749 }; | |
| 750 | |
| 954 | 751 /** put marks into parameters |
| 752 * | |
| 753 */ | |
| 822 | 754 var packMarks = function (settings, marks) { |
| 755 if (!marks) return; | |
| 756 settings.mk = ''; | |
| 757 for (var i = 0; i < marks.length; i++) { | |
| 758 if (i) { | |
| 759 settings.mk += ','; | |
| 760 } | |
| 761 settings.mk += | |
| 762 cropFloatStr(marks[i].x) + '/' + | |
| 763 cropFloatStr(marks[i].y); | |
| 764 } | |
| 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 packMarks(settings, data.marks); | |
| 789 packScalerFlags(settings, data.scalerFlags); | |
| 790 // store user interface options in cookie | |
| 723 | 791 storeOptions(data); |
| 709 | 792 }; |
| 688 | 793 |
| 954 | 794 /** store digilib options in a cookie |
| 795 * | |
| 796 */ | |
| 723 | 797 var storeOptions = function (data) { |
| 709 | 798 var settings = data.settings; |
| 799 if (data.dlOpts) { | |
| 800 // save digilib settings in options | |
| 801 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
| 802 data.dlOpts.buttons = settings.visibleButtonSets; | |
| 803 var clop = ''; | |
| 804 for (var o in data.dlOpts) { | |
| 805 if (clop) { | |
| 806 clop += '&'; | |
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807 } |
| 709 | 808 clop += o + '=' + data.dlOpts[o]; |
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809 } |
| 785 | 810 if ($.cookie) { |
| 709 | 811 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; |
| 812 console.debug("set cookie=", ck, " value=", clop); | |
| 785 | 813 $.cookie(ck, clop); |
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814 } |
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815 } |
| 785 | 816 if (settings.interactionMode !== 'fullscreen' && $.cookie) { |
| 727 | 817 // store normal parameters in cookie for embedded mode |
| 818 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
| 819 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 820 console.debug("set cookie=", ck, " value=", qs); | |
| 785 | 821 $.cookie(ck, qs); |
| 727 | 822 } |
| 631 | 823 }; |
| 655 | 824 |
| 954 | 825 /** restrieve digilib options from a cookie |
| 826 * | |
| 827 */ | |
| 723 | 828 var retrieveOptions = function (data) { |
| 709 | 829 // clop (digilib options) |
| 830 var opts = {}; | |
| 831 var settings = data.settings; | |
| 785 | 832 if ($.cookie) { |
| 709 | 833 // read from cookie |
| 834 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 785 | 835 var cp = $.cookie(ck); |
| 709 | 836 console.debug("get cookie=", ck, " value=", cp); |
| 837 // in query string format | |
| 838 opts = parseQueryString(cp); | |
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839 } |
| 709 | 840 data.dlOpts = opts; |
| 841 // birdview option | |
| 842 if (opts.birdview != null) { | |
| 843 settings.isBirdDivVisible = opts.birdview === '1'; | |
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844 } |
| 709 | 845 // visible button sets |
| 846 if (opts.buttons != null) { | |
| 847 settings.visibleButtonSets = opts.buttons; | |
|
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848 } |
| 711 | 849 }; |
| 709 | 850 |
| 949 | 851 /** (re)load the image with the current settings. |
| 852 * | |
| 853 */ | |
|
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854 var redisplay = function (data) { |
| 636 | 855 var settings = data.settings; |
| 856 if (settings.interactionMode === 'fullscreen') { | |
| 857 // update location.href (browser URL) in fullscreen mode | |
|
644
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858 var url = getDigilibUrl(data); |
| 636 | 859 var history = window.history; |
| 942 | 860 if (data.hasAsyncReload) { |
|
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861 console.debug("faking reload to "+url); |
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862 // change url without reloading (stateObj, title, url) |
|
890
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863 // TODO: we really need to push the state in stateObj and listen to pop-events |
|
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864 try { |
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865 history.replaceState({}, '', url); |
| 931 | 866 // show busy cursor |
| 867 $('body').css('cursor', 'progress'); | |
| 934 | 868 data.$scaler.css('cursor', 'progress'); |
|
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869 // change img src |
| 949 | 870 var $img = data.$img; |
|
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871 var imgurl = getScalerUrl(data); |
| 949 | 872 $img.attr('src', imgurl); |
|
952
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873 // trigger load event if image is cached. Doesn't work with Firefox!! |
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874 //if ($img.prop('complete')) $img.trigger('load'); |
| 917 | 875 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { |
| 876 // we need image info, do we have it? | |
| 877 if (data.imgInfo == null) { | |
| 878 loadImageInfo(data); | |
| 879 } | |
| 880 } | |
|
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881 // update if we have a preview |
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882 if (data.hasPreviewBg) { |
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883 $(data).trigger('update'); |
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884 } |
| 946 | 885 //FIXME: highlightButtons(data); |
|
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886 // send event |
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887 $(data).trigger('redisplay'); |
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888 } catch (e) { |
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889 console.error("replaceState("+url+") didn't work: "+e); |
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890 // reload window |
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891 window.location = url; |
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892 } |
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893 } else { |
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894 // reload window |
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895 window.location = url; |
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896 } |
| 636 | 897 } else { |
| 898 // embedded mode -- just change img src | |
| 931 | 899 // show busy cursor |
| 900 $('body').css('cursor', 'progress'); | |
| 934 | 901 data.$scaler.css('cursor', 'progress'); |
| 949 | 902 var $img = data.$img; |
| 636 | 903 var url = getScalerUrl(data); |
| 949 | 904 $img.attr('src', url); |
| 905 // trigger load event if image is cached | |
| 906 if ($img.prop('complete')) $img.trigger('load'); | |
| 917 | 907 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { |
| 908 // we need image info, do we have it? | |
| 909 if (data.imgInfo == null) { | |
| 910 loadImageInfo(data); | |
| 911 } | |
| 912 } | |
| 949 | 913 //FIXME: highlightButtons(data); |
| 795 | 914 // send event |
| 915 $(data).trigger('redisplay'); | |
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916 } |
| 622 | 917 }; |
| 918 | |
| 949 | 919 /** update display (overlays etc.) |
| 920 * (just triggers "update" event) | |
| 921 */ | |
| 767 | 922 var updateDisplay = function (data) { |
| 947 | 923 // send event |
| 924 $(data).trigger('update'); | |
| 925 }; | |
| 926 | |
| 949 | 927 /** handle "update" display event. |
| 954 | 928 * updates image transform, redraws marks etc. |
| 949 | 929 */ |
| 947 | 930 var handleUpdate = function (evt) { |
| 931 var data = this; | |
| 767 | 932 updateImgTrafo(data); |
| 933 renderMarks(data); | |
| 934 setupZoomDrag(data); | |
| 862 | 935 renderZoomArrows(data); |
| 767 | 936 }; |
| 974 | 937 |
| 949 | 938 /** returns maximum size for scaler img in fullscreen mode. |
| 939 * | |
| 940 */ | |
| 778 | 941 var getFullscreenImgSize = function (data) { |
|
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942 var mode = data.settings.interactionMode; |
| 662 | 943 var $win = $(window); |
| 944 var winH = $win.height(); | |
| 779 | 945 var winW = $win.width(); |
| 946 var $body = $('body'); | |
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947 // include standard body margins and check plausibility |
| 780 | 948 var borderW = $body.outerWidth(true) - $body.width(); |
|
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949 if (borderW === 0 || borderW > 100) { |
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950 console.debug("fixing border width for getFullscreenImgSize!"); |
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951 borderW = data.settings.scalerInset; |
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952 } |
| 780 | 953 var borderH = $body.outerHeight(true) - $body.height(); |
|
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954 if (borderH === 0 || borderH > 100) { |
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955 console.debug("fixing border height for getFullscreenImgSize!"); |
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956 borderH = 5; |
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957 } |
| 946 | 958 var buttonsW = 0; |
|
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959 if (data.buttons != null) { |
|
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960 // get button width from settings |
| 947 | 961 buttonsW = data.settings.buttonSettings[mode].buttonSetWidth * data.settings.visibleButtonSets; |
| 779 | 962 } |
| 963 // account for left/right border, body margins and additional requirements | |
|
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964 var imgW = winW - borderW - buttonsW; |
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965 var imgH = winH - borderH; |
| 974 | 966 console.debug('screen w/h:', winW, winH, 'window.width', $win.width(), 'border:', borderW, 'buttonsW:', buttonsW, 'img w/h:', imgW, imgH); |
|
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967 return geom.size(imgW, imgH); |
| 662 | 968 }; |
| 969 | |
| 974 | 970 /** returns a rectangle.with the fullscreen dimensions |
| 971 * | |
| 972 */ | |
| 973 var getFullscreenRect = function (data) { | |
| 974 return geom.rectangle(getFullscreenImgSize(data)); | |
| 975 }; | |
| 976 | |
| 949 | 977 /** creates HTML structure for digilib in elem |
| 978 * | |
| 979 */ | |
| 627 | 980 var setupScalerDiv = function (data) { |
| 981 var settings = data.settings; | |
| 647 | 982 var $elem = data.$elem; |
| 725 | 983 $elem.addClass('digilib'); |
| 728 | 984 var $img; |
| 985 var scalerUrl; | |
| 608 | 986 if (settings.interactionMode === 'fullscreen') { |
| 728 | 987 // fullscreen |
| 725 | 988 $elem.addClass('dl_fullscreen'); |
| 778 | 989 var imgSize = getFullscreenImgSize(data); |
| 650 | 990 // fitwidth/height omits destination height/width |
| 728 | 991 if (data.dlOpts.fitheight == null) { |
| 650 | 992 settings.dw = imgSize.width; |
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993 } |
| 728 | 994 if (data.dlOpts.fitwidth == null) { |
| 650 | 995 settings.dh = imgSize.height; |
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996 } |
| 686 | 997 scalerUrl = getScalerUrl(data); |
| 728 | 998 $img = $('<img/>'); |
| 609 | 999 } else { |
| 728 | 1000 // embedded mode -- try to keep img tag |
| 725 | 1001 $elem.addClass('dl_embedded'); |
| 728 | 1002 scalerUrl = getScalerUrl(data); |
| 623 | 1003 $img = $elem.find('img'); |
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1004 if ($img.length > 0) { |
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1005 var oldUrl = $img.attr('src'); |
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1006 // keep img attributes from html |
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1007 var title = $img.attr('title'); |
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1008 var alt = $img.attr('alt'); |
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1009 if (oldUrl === scalerUrl) { |
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1010 console.debug("img detach:", $img); |
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1011 $img.detach(); |
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1012 } else { |
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1013 $img = $('<img/>'); |
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1014 $img.attr("title", title); |
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1015 $img.attr("alt", alt); |
| 728 | 1016 } |
|
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1017 } else { |
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1018 $img = $('<img/>'); |
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1019 } |
| 608 | 1020 } |
| 822 | 1021 // create new inner html, keeping buttons and content marked with "keep" class |
| 1022 $elem.contents(":not(.keep)").remove(); | |
|
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|
1023 var $scaler = $('<div class="scaler"/>'); |
| 779 | 1024 // scaler should be the first child element? |
| 1025 $elem.prepend($scaler); | |
|
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1026 $scaler.append($img); |
| 622 | 1027 $img.addClass('pic'); |
| 649 | 1028 data.$scaler = $scaler; |
| 636 | 1029 data.$img = $img; |
| 947 | 1030 // set busy cursor |
| 1031 $('body').css('cursor','progress'); | |
| 1032 data.$scaler.css('cursor', 'progress'); | |
| 942 | 1033 // set up image load handler before setting the src attribute (IE bug) |
| 687 | 1034 $img.load(scalerImgLoadedHandler(data)); |
| 767 | 1035 $img.error(function () {console.error("error loading scaler image");}); |
| 687 | 1036 $img.attr('src', scalerUrl); |
| 608 | 1037 }; |
| 615 | 1038 |
| 949 | 1039 /** create arrow overlays for moving the zoomed area. |
| 1040 * | |
| 1041 */ | |
| 856 | 1042 var setupZoomArrows = function (data) { |
| 1043 var $elem = data.$elem; | |
| 1044 var settings = data.settings; | |
| 877 | 1045 var show = settings.showZoomArrows; |
| 856 | 1046 console.log('zoom arrows:', show); |
| 1047 if (!show) return; | |
| 877 | 1048 var mode = settings.interactionMode; |
| 1049 var arrowNames = settings.buttonSettings[mode].arrowSet; | |
| 879 | 1050 if (arrowNames == null) return; |
| 877 | 1051 // arrow divs are marked with class "keep" |
| 1052 var $arrowsDiv = $('<div class="keep arrows"/>'); | |
| 1053 $elem.append($arrowsDiv); | |
| 1054 // create all arrow buttons | |
| 946 | 1055 // TODO: do this without buttons plugin? |
| 877 | 1056 $.each(arrowNames, function(i, arrowName){ |
| 946 | 1057 fn.createButton(data, $arrowsDiv, arrowName); |
| 877 | 1058 }); |
| 856 | 1059 }; |
| 1060 | |
| 949 | 1061 /** size and show arrow overlays, called after scaler img is loaded. |
| 1062 * | |
| 1063 */ | |
| 862 | 1064 var renderZoomArrows = function (data) { |
| 877 | 1065 var settings = data.settings; |
| 1066 var $arrowsDiv = data.$elem.find('div.arrows'); | |
| 879 | 1067 if (isFullArea(data.zoomArea) || !settings.showZoomArrows) { |
| 1068 $arrowsDiv.hide(); | |
| 1069 return; | |
| 1070 } | |
| 1071 $arrowsDiv.show(); | |
| 877 | 1072 var r = geom.rectangle(data.$scaler); |
| 1073 // calculate arrow bar width | |
| 1074 var aw = settings.zoomArrowWidth; | |
| 1075 var minWidth = settings.zoomArrowMinWidth; | |
| 1076 // arrow bar width should not exceed 10% of scaler width/height | |
| 1077 var maxWidth = Math.min(r.width, r.height)/10; | |
| 1078 if (aw > maxWidth) { | |
| 1079 aw = maxWidth; | |
| 1080 if (aw < minWidth) { | |
| 1081 aw = minWidth; | |
| 1082 } | |
| 1083 } | |
| 879 | 1084 // vertical position of left/right image |
| 878 | 1085 var arrowData = [{ |
| 1086 name : 'up', | |
| 1087 rect : geom.rectangle(r.x, r.y, r.width, aw), | |
| 1088 show : canMove(data, 0, -1) | |
| 1089 }, { | |
| 1090 name : 'down', | |
| 879 | 1091 rect : geom.rectangle(r.x, r.y + r.height - aw, r.width, aw), |
| 878 | 1092 show : canMove(data, 0, 1) |
| 1093 }, { | |
| 1094 name : 'left', | |
| 1095 rect : geom.rectangle(r.x, r.y, aw, r.height), | |
| 884 | 1096 show : canMove(data, -1, 0) |
| 878 | 1097 }, { |
| 1098 name : 'right', | |
| 1099 rect : geom.rectangle(r.x + r.width - aw, r.y, aw, r.height), | |
| 1100 show : canMove(data, 1, 0) | |
| 1101 }]; | |
| 1102 // render a single zoom Arrow | |
| 1103 var render = function (i, item) { | |
| 1104 var $arrow = $arrowsDiv.find('div.button-' + item.name); | |
| 1105 if (item.show) { | |
| 1106 $arrow.show(); | |
| 1107 } else { | |
| 1108 $arrow.hide(); | |
| 879 | 1109 return; |
| 878 | 1110 } |
| 879 | 1111 var r = item.rect; |
| 1112 r.adjustDiv($arrow); | |
| 1113 var $a = $arrow.contents('a'); | |
| 1114 var $img = $a.contents('img'); | |
| 1115 $img.width(aw).height(aw); | |
| 1116 // hack for missing vertical-align | |
| 1117 if (item.name.match(/left|right/)) { | |
| 1118 var top = (r.height - $a.height())/2; | |
| 1119 $a.css({'top' : top}); // position : 'relative' | |
| 1120 } | |
| 878 | 1121 }; |
| 1122 $.each(arrowData, render); | |
| 862 | 1123 }; |
| 1124 | |
| 949 | 1125 /** creates HTML structure for the about view in elem |
| 1126 * | |
| 1127 */ | |
|
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1128 var setupAboutDiv = function (data) { |
| 647 | 1129 var $elem = data.$elem; |
|
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1130 var settings = data.settings; |
| 625 | 1131 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
|
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1132 var $header = $('<p>Digilib Image Viewer</p>'); |
| 616 | 1133 var $link = $('<a/>'); |
| 1134 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 1135 var $content = $('<p/>'); | |
| 1136 $elem.append($aboutDiv); | |
| 1137 $aboutDiv.append($header); | |
| 1138 $aboutDiv.append($link); | |
| 1139 $aboutDiv.append($content); | |
| 1140 $link.append($logo); | |
|
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|
1141 logoUrl = settings.logoUrl; |
|
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1142 // make relative logoUrl absolute |
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|
1143 if (logoUrl.charAt(0) !== '/' && logoUrl.substring(0,3) !== 'http') { |
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|
1144 logoUrl = settings.digilibBaseUrl + '/' + logoUrl; |
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|
1145 } |
|
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|
1146 $logo.attr('src', logoUrl); |
| 635 | 1147 $link.attr('href', settings.homeUrl); |
| 616 | 1148 $content.text('Version: ' + settings.version); |
| 775 | 1149 data.$aboutDiv = $aboutDiv; |
| 635 | 1150 // click hides |
| 917 | 1151 $aboutDiv.on('click.digilib', function () { |
| 775 | 1152 actions['showAboutDiv'](data, false); |
| 710 | 1153 }); |
| 634 | 1154 }; |
| 1155 | |
| 949 | 1156 /** shows some window e.g. 'about' (toggle visibility if show is null) |
| 1157 * | |
| 1158 */ | |
| 635 | 1159 var showDiv = function (isVisible, $div, show) { |
| 645 | 1160 if (show == null) { |
| 635 | 1161 // toggle visibility |
| 1162 isVisible = !isVisible; | |
| 1163 } else { | |
| 1164 // set visibility | |
| 1165 isVisible = show; | |
|
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|
1166 } |
| 635 | 1167 if (isVisible) { |
| 1168 $div.fadeIn(); | |
| 1169 } else { | |
| 1170 $div.fadeOut(); | |
|
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|
1171 } |
| 635 | 1172 return isVisible; |
| 634 | 1173 }; |
| 616 | 1174 |
| 949 | 1175 /** Create Transform from zoom area and image size and parameters. |
| 1176 * Returns Transform between normalized coordinates and image pixel coordinates. | |
| 1177 */ | |
|
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|
1178 var getImgTrafo = function ($img, area, rot, hmir, vmir, mode, data) { |
|
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|
1179 var picrect = geom.rectangle($img); |
| 949 | 1180 // handle pixel-by-pixel and original-size modes |
|
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|
1181 if (mode != null) { |
|
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|
1182 var imgInfo = data.imgInfo; |
|
763
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|
1183 if (mode === 'pixel') { |
|
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|
1184 // scaler mo=clip - image area size does not come from ww, wh |
|
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|
1185 if (imgInfo != null) { |
|
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|
1186 area.width = picrect.width / imgInfo.width; |
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|
1187 area.height = picrect.height / imgInfo.height; |
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|
1188 } else { |
|
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|
1189 console.error("No image info for pixel mode!"); |
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|
1190 } |
|
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|
1191 } |
|
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|
1192 if (mode === 'size') { |
|
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|
1193 // scaler mo=osize - image area size does not come from ww, wh |
|
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1194 if (imgInfo != null) { |
|
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|
1195 var ddpi = parseFloat(data.settings.ddpi); |
|
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|
1196 area.width = (picrect.width / ddpi) / (imgInfo.width / imgInfo.dpi_x); |
|
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|
1197 area.height = (picrect.height / ddpi) / (imgInfo.height / imgInfo.dpi_y); |
|
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|
1198 } else { |
|
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|
1199 console.error("No image info for original size mode!"); |
|
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|
1200 } |
|
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|
1201 } |
|
763
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|
1202 } |
|
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|
1203 var trafo = geom.transform(); |
| 675 | 1204 // move zoom area offset to center |
|
658
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|
1205 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 675 | 1206 // scale zoom area size to [1,1] |
|
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|
1207 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 675 | 1208 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 1209 if (rot || hmir || vmir) { | |
| 1210 // move [0.5,0.5] to center | |
| 1211 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 1212 if (hmir) { | |
| 1213 // mirror about center | |
| 1214 trafo.concat(trafo.getMirror('y')); | |
|
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|
1215 } |
| 675 | 1216 if (vmir) { |
| 1217 // mirror about center | |
| 1218 trafo.concat(trafo.getMirror('x')); | |
|
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|
1219 } |
| 675 | 1220 if (rot) { |
| 1221 // rotate around center | |
| 1222 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
|
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|
1223 } |
| 675 | 1224 // move back |
| 1225 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
|
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|
1226 } |
|
664
d5a5ee4cbf04
work on getting transformation to work with rotation (currently still doesn't)
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diff
changeset
|
1227 // scale to screen position and size |
|
658
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diff
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|
1228 trafo.concat(trafo.getScale(picrect)); |
|
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|
1229 trafo.concat(trafo.getTranslation(picrect)); |
|
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changeset
|
1230 return trafo; |
| 655 | 1231 }; |
|
678
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first step at dragging birdview zoom indicator around
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diff
changeset
|
1232 |
| 949 | 1233 /** update current scaler image transform |
| 1234 */ | |
| 767 | 1235 var updateImgTrafo = function (data) { |
| 1236 var $img = data.$img; | |
| 895 | 1237 if ($img == null) |
| 1238 return; | |
| 1239 var imgLoaded = $.browser.msie | |
| 949 | 1240 ? $img.prop('width') > 0 |
| 1241 : $img.prop('complete'); | |
|
950
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much nicer implementation of preview for scrolling and zooming.
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949
diff
changeset
|
1242 if (imgLoaded || data.hasPreviewBg) { |
| 949 | 1243 // create Transform from current zoomArea and image size |
| 1244 data.imgTrafo = getImgTrafo($img, data.zoomArea, data.settings.rot, | |
| 1245 data.scalerFlags.hmir, data.scalerFlags.vmir, | |
| 1246 data.scaleMode, data); | |
| 1247 console.debug("imgTrafo=", data.imgTrafo); | |
| 1248 } | |
| 767 | 1249 }; |
| 775 | 1250 |
| 949 | 1251 /** return handler for load event of scaler img |
| 1252 * (necessary for closure with data object) | |
| 1253 */ | |
| 767 | 1254 var scalerImgLoadedHandler = function (data) { |
| 1255 return function () { | |
| 1256 var $img = $(this); | |
| 1257 console.debug("scaler img loaded=",$img); | |
| 1258 var $scaler = data.$scaler; | |
|
760
f0be4432f515
primitive plugin extension mechanism - unsure how useful this is
hertzhaft
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755
diff
changeset
|
1259 var imgRect = geom.rectangle($img); |
| 931 | 1260 data.imgRect = imgRect; |
| 934 | 1261 // reset busy cursor |
| 1262 $('body').css('cursor', 'auto'); | |
| 1263 $scaler.css('cursor', 'auto'); | |
| 957 | 1264 // adjust scaler div size (beware: setting position makes the element relative) |
| 1265 imgRect.getSize().adjustDiv($scaler); | |
| 715 | 1266 // show image in case it was hidden (for example in zoomDrag) |
| 733 | 1267 $img.css('visibility', 'visible'); |
|
952
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disable forced load event causing problem with firefox.
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diff
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|
1268 $scaler.css({'opacity' : '1', 'background' : 'transparent'}); |
|
950
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diff
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|
1269 data.hasPreviewBg = false; |
| 767 | 1270 // update display (render marks, etc.) |
| 1271 updateDisplay(data); | |
|
658
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|
1272 }; |
|
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|
1273 }; |
|
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|
1274 |
| 949 | 1275 /** handle imageInfo loaded event |
| 1276 * | |
| 1277 */ | |
| 797 | 1278 var handleImageInfo = function (evt, json) { |
| 917 | 1279 console.debug("handleImageInfo:", json); |
| 797 | 1280 var data = this; |
| 1281 updateDisplay(data); | |
| 1282 }; | |
| 813 | 1283 |
| 949 | 1284 /** handle changeZoomArea event |
| 1285 * | |
| 1286 */ | |
| 942 | 1287 var handleChangeZoomArea = function (evt, newZa) { |
| 1288 console.debug("handleChangeZoomArea:", newZa); | |
| 1289 var data = this; | |
|
950
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|
1290 data.$elem.find(".overlay").hide(); // hide all overlays (marks/regions) |
|
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diff
changeset
|
1291 setPreviewBg(data, newZa); |
| 942 | 1292 }; |
| 1293 | |
| 1294 | |
| 949 | 1295 /** place marks on the image |
| 1296 * | |
| 1297 */ | |
| 633 | 1298 var renderMarks = function (data) { |
| 767 | 1299 if (data.$img == null || data.imgTrafo == null) return; |
|
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always show html-defined regions. wrong pos still not fixed
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849
diff
changeset
|
1300 console.debug("renderMarks: img=",data.$img," imgtrafo=",data.imgTrafo); |
| 647 | 1301 var $elem = data.$elem; |
| 643 | 1302 var marks = data.marks; |
|
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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741
diff
changeset
|
1303 // clear marks |
|
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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741
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changeset
|
1304 $elem.find('div.mark').remove(); |
| 633 | 1305 for (var i = 0; i < marks.length; i++) { |
| 1306 var mark = marks[i]; | |
| 643 | 1307 if (data.zoomArea.containsPosition(mark)) { |
| 633 | 1308 var mpos = data.imgTrafo.transform(mark); |
| 851 | 1309 console.debug("renderMarks: pos=",mpos); |
| 633 | 1310 // create mark |
| 813 | 1311 var html = '<div class="mark overlay">'+(i+1)+'</div>'; |
| 633 | 1312 var $mark = $(html); |
|
850
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always show html-defined regions. wrong pos still not fixed
hertzhaft
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849
diff
changeset
|
1313 $mark.attr("id", "digilib-mark-"+(i+1)); |
| 633 | 1314 $elem.append($mark); |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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741
diff
changeset
|
1315 mpos.adjustDiv($mark); |
|
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|
1316 } |
|
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|
1317 } |
| 633 | 1318 }; |
| 655 | 1319 |
| 949 | 1320 /** zoom by the given factor. |
| 1321 * | |
| 1322 */ | |
| 643 | 1323 var zoomBy = function(data, factor) { |
| 1324 var area = data.zoomArea; | |
| 1325 var newarea = area.copy(); | |
| 1326 // scale | |
| 1327 newarea.width /= factor; | |
| 1328 newarea.height /= factor; | |
| 1329 // and recenter | |
| 1330 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 1331 newarea.y -= 0.5 * (newarea.height - area.height); | |
|
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1332 newarea = FULL_AREA.fit(newarea); |
|
950
164d69e2c481
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parents:
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diff
changeset
|
1333 setZoomArea(data, newarea); |
| 972 | 1334 // reset modes |
| 1335 setScaleMode(data, 'screen'); | |
| 1336 setFitMode(data, 'both'); | |
|
644
ee8ccd84c5f8
reload doesn't take list of changed parameters any more
robcast
parents:
643
diff
changeset
|
1337 redisplay(data); |
| 643 | 1338 }; |
| 1339 | |
| 949 | 1340 /** add a mark where clicked. |
| 1341 * | |
| 1342 */ | |
| 647 | 1343 var setMark = function (data) { |
| 649 | 1344 var $scaler = data.$scaler; |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1345 // unbind other handler |
| 917 | 1346 $scaler.off(".dlZoomDrag"); |
| 647 | 1347 // start event capturing |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1348 $scaler.one('mousedown.dlSetMark', function (evt) { |
| 647 | 1349 // event handler adding a new mark |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1350 console.log("setmark at=", evt); |
|
672
7f7536a5b6d9
image transform works now under rotation!!! (at least for multiples of 90deg)
robcast
parents:
671
diff
changeset
|
1351 var mpos = geom.position(evt); |
| 647 | 1352 var pos = data.imgTrafo.invtransform(mpos); |
| 1353 data.marks.push(pos); | |
| 1354 redisplay(data); | |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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741
diff
changeset
|
1355 return false; |
| 647 | 1356 }); |
| 1357 }; | |
| 668 | 1358 |
| 949 | 1359 /** zoom to the area around two clicked points. |
| 1360 * | |
| 1361 */ | |
| 654 | 1362 var zoomArea = function(data) { |
| 1363 $elem = data.$elem; | |
| 1364 $scaler = data.$scaler; | |
| 1365 var pt1, pt2; | |
| 1366 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 1367 $elem.append($zoomDiv); | |
| 775 | 1368 // $zoomDiv.css(data.settings.zoomrectStyle); |
| 654 | 1369 var picRect = geom.rectangle($scaler); |
| 1370 // FIX ME: is there a way to query the border width from CSS info? | |
| 1371 // rect.x -= 2; // account for overlay borders | |
| 1372 // rect.y -= 2; | |
| 1373 | |
| 1374 var zoomStart = function (evt) { | |
| 1375 pt1 = geom.position(evt); | |
| 1376 // setup and show zoom div | |
| 738 | 1377 pt1.adjustDiv($zoomDiv); |
| 668 | 1378 $zoomDiv.width(0).height(0); |
| 654 | 1379 $zoomDiv.show(); |
| 1380 // register events | |
| 917 | 1381 $elem.on("mousemove.dlZoomArea", zoomMove); |
| 1382 $elem.on("mouseup.dlZoomArea", zoomEnd); | |
| 654 | 1383 return false; |
| 1384 }; | |
| 668 | 1385 |
| 741 | 1386 // mouse move handler |
| 1387 var zoomMove = function (evt) { | |
| 1388 pt2 = geom.position(evt); | |
| 1389 var rect = geom.rectangle(pt1, pt2); | |
| 1390 rect.clipTo(picRect); | |
| 1391 // update zoom div | |
| 1392 rect.adjustDiv($zoomDiv); | |
| 1393 return false; | |
| 1394 }; | |
|
745
ad483c008159
move birdview zoom indicator along with zoom drag
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744
diff
changeset
|
1395 |
| 654 | 1396 // mouseup handler: end moving |
| 1397 var zoomEnd = function (evt) { | |
| 1398 pt2 = geom.position(evt); | |
| 1399 // assume a click and continue if the area is too small | |
| 1400 var clickRect = geom.rectangle(pt1, pt2); | |
| 710 | 1401 if (clickRect.getArea() <= 5) return false; |
| 654 | 1402 // hide zoom div |
| 1403 $zoomDiv.remove(); | |
| 1404 // unregister events | |
| 917 | 1405 $elem.off("mousemove.dlZoomArea", zoomMove); |
| 1406 $elem.off("mouseup.dlZoomArea", zoomEnd); | |
| 654 | 1407 // clip and transform |
| 1408 clickRect.clipTo(picRect); | |
| 1409 var area = data.imgTrafo.invtransform(clickRect); | |
|
951
9c699b6cfcca
preview for ZoomArea. shows distortions when changing aspect ratio.
robcast
parents:
950
diff
changeset
|
1410 setZoomArea(data, area); |
| 972 | 1411 // reset modes |
| 1412 setFitMode(data, 'both'); | |
| 1413 setScaleMode(data, 'screen'); | |
| 654 | 1414 redisplay(data); |
| 1415 return false; | |
| 1416 }; | |
| 668 | 1417 |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1418 // clear old handler (also ZoomDrag) |
| 917 | 1419 $scaler.off('.dlZoomArea'); |
| 1420 $scaler.off(".dlZoomDrag"); | |
| 1421 $elem.off('.dlZoomArea'); | |
| 654 | 1422 // bind start zoom handler |
| 738 | 1423 $scaler.one('mousedown.dlZoomArea', zoomStart); |
| 654 | 1424 }; |
| 647 | 1425 |
|
950
164d69e2c481
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parents:
949
diff
changeset
|
1426 /** set preview background. |
|
164d69e2c481
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949
diff
changeset
|
1427 * optional newZoomArea scales and moves background to preview. |
| 949 | 1428 */ |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1429 var setPreviewBg = function(data, newZoomArea) { |
|
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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parents:
745
diff
changeset
|
1430 var $scaler = data.$scaler; |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1431 var $img = data.$img; |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1432 var imgTrafo = data.imgTrafo; |
|
164d69e2c481
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parents:
949
diff
changeset
|
1433 var scalerPos = geom.position($scaler); |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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parents:
949
diff
changeset
|
1434 var bgRect = null; |
|
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1435 // hide the scaler img, show background of div instead |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1436 $img.css('visibility', 'hidden'); |
|
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1437 // use current image as first background |
|
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1438 var scalerCss = { |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
parents:
949
diff
changeset
|
1439 'background-image' : 'url(' + $img.attr('src') + ')', |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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parents:
949
diff
changeset
|
1440 'background-repeat' : 'no-repeat', |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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parents:
949
diff
changeset
|
1441 'background-position' : '0px 0px', |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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parents:
949
diff
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|
1442 'opacity' : '0.7', |
|
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949
diff
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|
1443 'cursor' : 'move' |
|
164d69e2c481
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diff
changeset
|
1444 }; |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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parents:
949
diff
changeset
|
1445 if (newZoomArea != null) { |
|
953
3d5e7458f9ae
fixed birdseye region positioning after layout reflow.
robcast
parents:
952
diff
changeset
|
1446 // check if aspect ratio has changed |
|
3d5e7458f9ae
fixed birdseye region positioning after layout reflow.
robcast
parents:
952
diff
changeset
|
1447 if (newZoomArea.getAspect() !== data.zoomArea.getAspect()) { |
|
3d5e7458f9ae
fixed birdseye region positioning after layout reflow.
robcast
parents:
952
diff
changeset
|
1448 console.debug("aspect ratio changed!"); |
| 954 | 1449 // what now? |
|
953
3d5e7458f9ae
fixed birdseye region positioning after layout reflow.
robcast
parents:
952
diff
changeset
|
1450 } |
|
3d5e7458f9ae
fixed birdseye region positioning after layout reflow.
robcast
parents:
952
diff
changeset
|
1451 // get transform for new zoomArea |
|
950
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949
diff
changeset
|
1452 imgTrafo = getImgTrafo($img, newZoomArea, data.settings.rot, |
|
164d69e2c481
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diff
changeset
|
1453 data.scalerFlags.hmir, data.scalerFlags.vmir, |
|
164d69e2c481
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949
diff
changeset
|
1454 data.scaleMode, data); |
|
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949
diff
changeset
|
1455 // for new background coordinates transform old zoomArea with new Transform |
|
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diff
changeset
|
1456 bgRect = imgTrafo.transform(data.zoomArea); |
|
164d69e2c481
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parents:
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diff
changeset
|
1457 // correct offset because background is relative |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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949
diff
changeset
|
1458 bgRect.addPosition(scalerPos.neg()); |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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diff
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|
1459 // position background |
|
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diff
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|
1460 scalerCss['background-position'] = Math.round(bgRect.x) + 'px '+ Math.round(bgRect.y) + 'px'; |
|
164d69e2c481
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changeset
|
1461 } |
|
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
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diff
changeset
|
1462 if (data.hasBgSize) { |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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parents:
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diff
changeset
|
1463 // scale background using CSS3-background-size |
|
164d69e2c481
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parents:
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diff
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|
1464 if (bgRect != null && (bgRect.height < data.settings.maxBgSize && bgRect.width < data.settings.maxBgSize)) { |
|
164d69e2c481
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parents:
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diff
changeset
|
1465 scalerCss[data.bgSizeName] = Math.round(bgRect.width) + 'px ' + Math.round(bgRect.height) + 'px'; |
| 944 | 1466 } else { |
| 1467 scalerCss[data.bgSizeName] = 'auto'; | |
| 1468 } | |
|
950
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parents:
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diff
changeset
|
1469 // additional full-size background using CSS3 |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
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949
diff
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|
1470 fullRect = imgTrafo.transform(FULL_AREA); |
|
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
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diff
changeset
|
1471 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
|
1472 // correct offset because background is relative |
|
751
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
748
diff
changeset
|
1473 fullRect.addPosition(scalerPos.neg()); |
| 954 | 1474 var url = getPreviewImgUrl(data); |
|
950
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parents:
949
diff
changeset
|
1475 // 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
|
1476 scalerCss['background-image'] += ', url(' + url + ')'; |
|
950
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diff
changeset
|
1477 scalerCss[data.bgSizeName] += ', ' + Math.round(fullRect.width) + 'px ' + Math.round(fullRect.height) + 'px'; |
|
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much nicer implementation of preview for scrolling and zooming.
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949
diff
changeset
|
1478 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
|
1479 } |
|
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1480 } |
|
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1481 $scaler.css(scalerCss); |
| 942 | 1482 data.hasPreviewBg = true; |
|
929
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
robcast
parents:
928
diff
changeset
|
1483 }; |
|
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
robcast
parents:
928
diff
changeset
|
1484 |
| 949 | 1485 /** setup handlers for dragging the zoomed image. |
| 1486 * | |
| 1487 */ | |
| 705 | 1488 var setupZoomDrag = function(data) { |
| 942 | 1489 var startPos, delta; |
| 733 | 1490 var $document = $(document); |
| 795 | 1491 var $data = $(data); |
| 705 | 1492 var $elem = data.$elem; |
| 1493 var $scaler = data.$scaler; | |
| 1494 var $img = data.$img; | |
| 710 | 1495 |
| 733 | 1496 // drag the image and load a new detail on mouse up |
| 705 | 1497 var dragStart = function (evt) { |
| 944 | 1498 // cancel if not left-click |
| 1499 if (evt.which != 1) return; | |
| 813 | 1500 console.debug("dragstart at=", evt); |
|
737
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
736
diff
changeset
|
1501 // don't start dragging if not zoomed |
|
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
736
diff
changeset
|
1502 if (isFullArea(data.zoomArea)) return false; |
| 813 | 1503 $elem.find(".overlay").hide(); // hide all overlays (marks/regions) |
| 733 | 1504 startPos = geom.position(evt); |
| 741 | 1505 delta = null; |
|
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1506 // set low res background immediately on mousedown |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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949
diff
changeset
|
1507 setPreviewBg(data); |
| 917 | 1508 $document.on("mousemove.dlZoomDrag", dragMove); |
| 1509 $document.on("mouseup.dlZoomDrag", dragEnd); | |
|
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1510 return false; |
| 705 | 1511 }; |
|
745
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1512 |
| 733 | 1513 // mousemove handler: drag zoomed image |
| 705 | 1514 var dragMove = function (evt) { |
| 1515 var pos = geom.position(evt); | |
| 741 | 1516 delta = startPos.delta(pos); |
|
807
1b1728926534
geometry: overlapsRect() plus some comment clarifications
hertzhaft
parents:
799
diff
changeset
|
1517 // send message event with current zoom position |
|
745
ad483c008159
move birdview zoom indicator along with zoom drag
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diff
changeset
|
1518 var za = geom.rectangle($img); |
|
ad483c008159
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diff
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|
1519 za.addPosition(delta.neg()); |
| 947 | 1520 // transform back |
| 1521 var newArea = data.imgTrafo.invtransform(za); | |
| 1522 $data.trigger('changeZoomArea', newArea); | |
| 705 | 1523 return false; |
| 1524 }; | |
| 710 | 1525 |
| 733 | 1526 // mouseup handler: reload zoomed image in new position |
| 705 | 1527 var dragEnd = function (evt) { |
| 739 | 1528 $scaler.css('cursor', 'auto'); |
| 917 | 1529 $document.off("mousemove.dlZoomDrag", dragMove); |
| 1530 $document.off("mouseup.dlZoomDrag", dragEnd); | |
| 733 | 1531 if (delta == null || delta.distance() < 2) { |
| 1532 // no movement | |
| 1533 $img.css('visibility', 'visible'); | |
| 741 | 1534 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
| 944 | 1535 data.hasPreviewBg = false; |
| 767 | 1536 // unhide marks |
| 1537 data.$elem.find('div.mark').show(); | |
| 813 | 1538 $(data).trigger('redisplay'); |
| 733 | 1539 return false; |
| 1540 } | |
| 1541 // get old zoom area (screen coordinates) | |
| 741 | 1542 var za = geom.rectangle($img); |
| 733 | 1543 // move |
| 741 | 1544 za.addPosition(delta.neg()); |
| 733 | 1545 // transform back |
| 1546 var newArea = data.imgTrafo.invtransform(za); | |
|
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1547 data.zoomArea = FULL_AREA.fit(newArea); |
|
708
120ace160386
img reload works for fullscreen, but somehow not precise
hertzhaft
parents:
707
diff
changeset
|
1548 redisplay(data); |
| 705 | 1549 return false; |
| 1550 }; | |
|
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1551 |
| 733 | 1552 // clear old handler |
| 917 | 1553 $document.off(".dlZoomDrag"); |
| 1554 $scaler.off(".dlZoomDrag"); | |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1555 if (! isFullArea(data.zoomArea)) { |
|
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1556 // set handler |
| 917 | 1557 $scaler.on("mousedown.dlZoomDrag", dragStart); |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1558 } |
| 705 | 1559 }; |
| 1560 | |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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parents:
949
diff
changeset
|
1561 /** set the zoom area. |
|
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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949
diff
changeset
|
1562 * also triggers "changeZoomArea" event. |
|
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much nicer implementation of preview for scrolling and zooming.
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949
diff
changeset
|
1563 */ |
|
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949
diff
changeset
|
1564 var setZoomArea = function(data, za) { |
|
164d69e2c481
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949
diff
changeset
|
1565 $(data).trigger('changeZoomArea', za); |
|
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diff
changeset
|
1566 data.oldZoomArea = data.zoomArea; |
|
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parents:
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diff
changeset
|
1567 data.zoomArea = za; |
|
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diff
changeset
|
1568 }; |
|
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diff
changeset
|
1569 |
| 949 | 1570 /** get image quality as a number (0..2). |
| 1571 * | |
| 1572 */ | |
| 703 | 1573 var getQuality = function (data) { |
| 1574 var flags = data.scalerFlags; | |
| 1575 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
| 1576 return parseInt(q[1], 10); | |
| 706 | 1577 }; |
| 703 | 1578 |
| 949 | 1579 /** set image quality as a number (0..2). |
| 1580 * | |
| 1581 */ | |
| 703 | 1582 var setQuality = function (data, qual) { |
| 1583 var flags = data.scalerFlags; | |
| 1584 // clear flags | |
| 1585 for (var i = 0; i < 3; ++i) { | |
| 1586 delete flags['q'+i]; | |
|
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more cosmetics: added options to validate with http://www.jslint.com
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parents:
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diff
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|
1587 } |
| 703 | 1588 flags['q'+qual] = 'q'+qual; |
| 706 | 1589 }; |
| 710 | 1590 |
| 949 | 1591 /** get image scale mode (screen, pixel, size). |
| 1592 * | |
| 1593 */ | |
|
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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760
diff
changeset
|
1594 var getScaleMode = function (data) { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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diff
changeset
|
1595 if (data.scalerFlags.clip != null) { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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diff
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|
1596 return 'pixel'; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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parents:
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diff
changeset
|
1597 } else if (data.scalerFlags.osize != null) { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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diff
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|
1598 return 'size'; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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parents:
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diff
changeset
|
1599 } |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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diff
changeset
|
1600 // mo=fit is default |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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diff
changeset
|
1601 return 'screen'; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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diff
changeset
|
1602 }; |
| 775 | 1603 |
| 949 | 1604 /** set image scale mode (screen, pixel, size). |
| 1605 * | |
| 1606 */ | |
|
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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diff
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|
1607 var setScaleMode = function (data, mode) { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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760
diff
changeset
|
1608 delete data.scalerFlags.fit; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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parents:
760
diff
changeset
|
1609 delete data.scalerFlags.clip; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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parents:
760
diff
changeset
|
1610 delete data.scalerFlags.osize; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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parents:
760
diff
changeset
|
1611 if (mode === 'pixel') { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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parents:
760
diff
changeset
|
1612 data.scalerFlags.clip = 'clip'; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1613 } else if (mode === 'size') { |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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parents:
760
diff
changeset
|
1614 data.scalerFlags.osize = 'osize'; |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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parents:
760
diff
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|
1615 } |
|
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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760
diff
changeset
|
1616 // mo=fit is default |
| 972 | 1617 // save mode |
| 1618 data.scaleMode = mode; | |
|
761
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added setScaleMode. no compensation for change in scaling yet.
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diff
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|
1619 }; |
| 775 | 1620 |
| 972 | 1621 /** get screen fit mode (width, height, both). |
| 1622 * | |
| 1623 */ | |
| 1624 var getFitMode = function (data) { | |
| 1625 if (data.dlOpts.fitwidth != null) { | |
| 1626 return "width"; | |
| 1627 } else if (data.dlOpts.fitheight != null) { | |
| 1628 return "height"; | |
| 1629 } | |
| 1630 // "both" is default | |
| 1631 return "both"; | |
| 1632 }; | |
| 1633 | |
| 1634 /** | |
| 1635 * set screen fit mode (width, height, both). | |
| 1636 */ | |
| 1637 var setFitMode = function (data, mode) { | |
| 1638 if (mode === 'width') { | |
| 1639 data.dlOpts.fitwidth = 1; | |
| 1640 delete data.dlOpts.fitheight; | |
| 1641 } else if (mode === 'height') { | |
| 1642 data.dlOpts.fitheight = 1; | |
| 1643 delete data.dlOpts.fitwidth; | |
| 1644 } else { | |
| 1645 delete data.dlOpts.fitwidth; | |
| 1646 delete data.dlOpts.fitheight; | |
| 1647 } | |
| 1648 }; | |
| 1649 | |
| 949 | 1650 /** sets a key to a value (relative values with +/- if relative=true). |
| 1651 * | |
| 1652 */ | |
| 650 | 1653 var setNumValue = function(settings, key, value) { |
| 716 | 1654 if (value == null) return null; |
|
955
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parents:
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diff
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|
1655 if (isNumber(value)) { |
|
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parents:
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diff
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|
1656 settings[key] = value; |
|
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diff
changeset
|
1657 return value; |
|
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parents:
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diff
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|
1658 } |
|
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more cosmetics: added options to validate with http://www.jslint.com
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711
diff
changeset
|
1659 var sign = value[0]; |
| 650 | 1660 if (sign === '+' || sign === '-') { |
| 1661 if (settings[key] == null) { | |
|
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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650
diff
changeset
|
1662 // this isn't perfect but still... |
| 650 | 1663 settings[key] = 0; |
|
713
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more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1664 } |
| 650 | 1665 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
| 1666 } else { | |
| 1667 settings[key] = value; | |
|
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more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
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diff
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|
1668 } |
| 650 | 1669 return settings[key]; |
| 1670 }; | |
| 655 | 1671 |
| 949 | 1672 /** return width of border on $elem. |
| 1673 * assumes equal border width on all sides. | |
| 1674 */ | |
| 775 | 1675 var getBorderWidth = function($elem) { |
| 1676 var border = $elem.outerWidth() - $elem.width(); | |
| 1677 return border/2; | |
| 1678 }; | |
| 1679 | |
| 949 | 1680 /** return if the current zoomarea can be moved further. |
| 1681 * | |
| 1682 */ | |
| 878 | 1683 var canMove = function(data, movx, movy) { |
| 1684 var za = data.zoomArea; | |
| 1685 if (isFullArea(za)) return false; | |
| 1686 var x2 = za.x + za.width; | |
| 1687 var y2 = za.y + za.height; | |
| 949 | 1688 return (((movx < 0) && (za.x > 0)) |
| 878 | 1689 || ((movx > 0) && (x2 < 1.0)) |
| 1690 || ((movy < 0) && (za.y > 0)) | |
| 949 | 1691 || ((movy > 0) && (y2 < 1.0))); |
| 878 | 1692 }; |
| 1693 | |
| 949 | 1694 /** return if area is maximal. |
| 1695 * | |
| 1696 */ | |
| 795 | 1697 var isFullArea = function (area) { |
| 659 | 1698 return (area.width === 1.0) && (area.height === 1.0); |
| 655 | 1699 }; |
| 1700 | |
|
955
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fixed bug with prev/next page. (too quick in using jQuery functions)
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diff
changeset
|
1701 /** return if the argument is a number. |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
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parents:
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diff
changeset
|
1702 * from Douglas Crockford, A.10. |
|
c8c441d1d7a0
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parents:
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diff
changeset
|
1703 * this is different from $.isNumeric(). |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
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diff
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|
1704 */ |
|
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diff
changeset
|
1705 var isNumber = function (value) { |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
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parents:
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diff
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|
1706 return typeof value === 'number' && isFinite(value); |
|
c8c441d1d7a0
fixed bug with prev/next page. (too quick in using jQuery functions)
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diff
changeset
|
1707 }; |
| 949 | 1708 /** return number with reduced precision. |
| 1709 * ("crop senseless precision") | |
| 1710 */ | |
| 631 | 1711 var cropFloat = function (x) { |
| 637 | 1712 return parseInt(10000 * x, 10) / 10000; |
| 631 | 1713 }; |
| 655 | 1714 |
| 949 | 1715 /** return string from number with reduced precision. |
| 1716 * | |
| 1717 */ | |
| 813 | 1718 var cropFloatStr = function (x) { |
| 1719 return cropFloat(x).toString(); | |
| 1720 }; | |
| 1721 | |
| 692 | 1722 // fallback for console.log calls |
| 1723 if (customConsole) { | |
| 1724 var logFunction = function(type) { | |
| 1725 return function(){ | |
| 1726 var $debug = $('#debug'); // debug div | |
| 1727 if (!$debug) return; | |
| 1728 var args = Array.prototype.slice.call(arguments); | |
| 1729 var argtext = args.join(' '); | |
| 1730 var $logDiv = $('<div/>'); | |
| 1731 $logDiv.addClass(type); | |
| 1732 $logDiv.text(argtext); | |
| 1733 $debug.append($logDiv); | |
| 1734 }; | |
| 1735 }; | |
| 1736 console.log = logFunction('_log'); | |
| 1737 console.debug = logFunction('_debug'); | |
| 1738 console.error = logFunction('_error'); | |
|
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diff
changeset
|
1739 } |
| 692 | 1740 |
| 949 | 1741 /** functions to export to plugins. |
| 1742 */ | |
| 787 | 1743 fn = { |
| 791 | 1744 geometry : geom, |
| 787 | 1745 parseQueryString : parseQueryString, |
| 1746 getScalerUrl : getScalerUrl, | |
| 1747 getParamString : getParamString, | |
| 1748 getDigilibUrl : getDigilibUrl, | |
| 1749 unpackParams : unpackParams, | |
| 1750 packParams : packParams, | |
| 822 | 1751 packArea : packArea, |
| 1752 packMarks : packMarks, | |
| 1753 packScalerFlags : packScalerFlags, | |
| 795 | 1754 storeOptions : storeOptions, |
| 787 | 1755 redisplay : redisplay, |
| 1756 updateDisplay : updateDisplay, | |
| 791 | 1757 showDiv : showDiv, |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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parents:
949
diff
changeset
|
1758 setPreviewBg : setPreviewBg, |
| 787 | 1759 getImgTrafo : getImgTrafo, |
| 1760 getQuality : getQuality, | |
| 1761 setQuality : setQuality, | |
| 1762 getScaleMode : getScaleMode, | |
| 1763 setScaleMode : setScaleMode, | |
| 972 | 1764 getFitMode : getFitMode, |
| 1765 setFitMode : setFitMode, | |
| 878 | 1766 canMove : canMove, |
| 795 | 1767 isFullArea : isFullArea, |
| 974 | 1768 getFullscreenRect : getFullscreenRect, |
| 813 | 1769 getBorderWidth : getBorderWidth, |
| 1770 cropFloat : cropFloat, | |
| 1771 cropFloatStr : cropFloatStr | |
| 787 | 1772 }; |
| 788 | 1773 |
|
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1774 // hook digilib plugin into jquery |
| 785 | 1775 $.fn.digilib = function (action) { |
|
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1776 // plugin extension mechanism, called when the plugins' code is read |
| 786 | 1777 if (action === 'plugin') { |
| 1778 var plugin = arguments[1]; | |
| 1779 // each plugin needs a name | |
| 1780 if (plugin.name != null) { | |
| 1781 plugins[plugin.name] = plugin; | |
|
793
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1782 // share common objects |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1783 plugin.defaults = defaults; |
| 947 | 1784 plugin.buttons = buttons; |
|
793
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1785 plugin.actions = actions; |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1786 plugin.fn = fn; |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1787 plugin.plugins = plugins; |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1788 // and install |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1789 if (typeof plugin.install === 'function') { |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1790 plugin.install(plugin); |
|
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1791 } |
| 786 | 1792 } |
|
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1793 // 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
|
1794 } else if (actions[action]) { |
|
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1795 // 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
|
1796 var $elem = $(this); |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1797 var data = $elem.data('digilib'); |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1798 var args = Array.prototype.slice.call(arguments, 1); |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1799 args.unshift(data); |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1800 return actions[action].apply(this, args); |
|
798
b07d1824ca2a
fullscreen mode works without reload on browsers supporting history.pushstate!
robcast
parents:
797
diff
changeset
|
1801 } else if (typeof action === 'object' || !action) { |
|
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1802 // call init on the digilib jQuery object |
|
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1803 return actions.init.apply(this, arguments); |
| 605 | 1804 } else { |
|
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
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711
diff
changeset
|
1805 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
|
c1fa722c570e
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diff
changeset
|
1806 } |
| 605 | 1807 }; |
| 692 | 1808 |
| 604 | 1809 })(jQuery); |