Mercurial > hg > digilib-old
annotate webapp/src/main/webapp/jquery/jquery.digilib.js @ 953:3d5e7458f9ae
fixed birdseye region positioning after layout reflow.
added zoom area aspect ration change detection -- does nothing yet.
| author | robcast |
|---|---|
| date | Wed, 04 Jan 2012 11:28:46 +0100 |
| parents | e3dc84cbb766 |
| children | 36102de2301e |
| rev | line source |
|---|---|
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1 /* Copyright (c) 2011 Martin Raspe, Robert Casties |
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2 |
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3 This program is free software: you can redistribute it and/or modify |
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4 it under the terms of the GNU Lesser General Public License as published by |
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5 the Free Software Foundation, either version 2 of the License, or |
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6 (at your option) any later version. |
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7 |
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8 This program is distributed in the hope that it will be useful, |
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9 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 GNU Lesser General Public License for more details. |
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12 |
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13 You should have received a copy of the GNU Lesser General Public License |
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14 along with this program. If not, see <http://www.gnu.org/licenses/>. |
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15 |
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16 Authors: |
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17 Martin Raspe, Robert Casties, 11.1.2011 |
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18 */ |
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19 |
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20 /** |
| 604 | 21 * digilib jQuery plugin |
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22 **/ |
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23 |
| 767 | 24 /*jslint browser: true, debug: true, forin: true |
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25 */ |
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26 |
| 636 | 27 // fallback for console.log calls |
| 797 | 28 if (typeof console === 'undefined') { |
| 636 | 29 var console = { |
| 692 | 30 log : function(){}, |
| 31 debug : function(){}, | |
| 32 error : function(){} | |
| 33 }; | |
| 779 | 34 var customConsole = false; // set to true if debugging for MS IE |
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35 } |
| 604 | 36 |
| 37 (function($) { | |
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38 |
| 605 | 39 var defaults = { |
| 616 | 40 // version of this script |
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41 'version' : 'jquery.digilib.js 2.1b1', |
| 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, |
| 795 | 92 // default size of background image for drag-scroll (same as Bird's Eye View image) |
| 93 'bgImgWidth' : 200, | |
| 94 'bgImgHeight' : 200, | |
| 95 // maximum width or height of background image for drag-scroll | |
| 778 | 96 'maxBgSize' : 10000, |
| 795 | 97 // parameters used by background image |
| 948 | 98 'bgImgParamNames' : ['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 = { |
| 668 | 117 // init: digilib initialization |
| 118 init : function(options) { | |
| 786 | 119 // import geometry classes |
| 120 if (plugins.geometry == null) { | |
| 121 $.error("jquery.digilib.geometry plugin not found!"); | |
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122 // last straw: old version |
| 785 | 123 geom = dlGeometry(); |
| 124 } else { | |
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125 // geometry plugin puts classes in the shared fn |
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126 geom = fn.geometry; |
| 785 | 127 } |
| 128 FULL_AREA = geom.rectangle(0, 0, 1, 1); | |
| 788 | 129 |
| 668 | 130 // settings for this digilib instance are merged from defaults and options |
| 131 var settings = $.extend({}, defaults, options); | |
| 132 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
| 133 var queryParams = {}; | |
| 134 if (isFullscreen) { | |
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135 queryParams = parseQueryParams(); |
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136 // filter additional parameters |
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137 for (var p in queryParams) { |
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138 if ($.inArray(p, settings.digilibParamNames) < 0) { |
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139 settings.additionalParamNames.push(p); |
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140 } |
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141 } |
| 668 | 142 } |
| 143 return this.each(function() { | |
| 144 var $elem = $(this); | |
| 145 var data = $elem.data('digilib'); | |
| 688 | 146 var params, elemSettings; |
| 668 | 147 // if the plugin hasn't been initialized yet |
| 148 if (!data) { | |
| 149 // merge query parameters | |
| 150 if (isFullscreen) { | |
| 688 | 151 params = queryParams; |
| 668 | 152 } else { |
| 688 | 153 params = parseImgParams($elem); |
| 785 | 154 if ($.cookie) { |
| 727 | 155 // retrieve params from cookie |
| 156 var ck = "digilib-embed:fn:" + escape(params.fn) + ":pn:" + (params.pn || '1'); | |
| 785 | 157 var cs = $.cookie(ck); |
| 727 | 158 console.debug("get cookie=", ck, " value=", cs); |
| 159 if (cs) { | |
| 160 var cp = parseQueryString(cs); | |
| 728 | 161 // ignore fn and pn from cookie TODO: should we keep pn? |
| 162 delete cp.fn; | |
| 163 delete cp.pn; | |
| 785 | 164 $.extend(params, cp); |
| 727 | 165 } |
| 166 } | |
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167 } |
| 856 | 168 // setup $elem.data, needs "deep copy" because of nesting |
| 849 | 169 elemSettings = $.extend(true, {}, settings, params); |
| 697 | 170 data = { |
| 856 | 171 // let $(this) know about $(this) :-) |
| 668 | 172 $elem : $elem, |
| 856 | 173 // let $elem have its own copy of settings |
| 668 | 174 settings : elemSettings, |
| 856 | 175 // and of the URL query parameters |
| 788 | 176 queryParams : params, |
| 668 | 177 }; |
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178 // store in jQuery data element |
| 668 | 179 $elem.data('digilib', data); |
| 949 | 180 } else { |
| 181 // data exists | |
| 182 elemSettings = data.settings; | |
| 668 | 183 } |
| 184 unpackParams(data); | |
| 744 | 185 // check if browser knows *background-size |
| 741 | 186 for (var bs in {'':1, '-moz-':1, '-webkit-':1, '-o-':1}) { |
| 187 if ($elem.css(bs+'background-size')) { | |
| 188 data.hasBgSize = true; | |
| 189 data.bgSizeName = bs+'background-size'; | |
| 190 break; | |
| 191 } | |
| 192 } | |
| 944 | 193 data.hasPreviewBg = false; |
| 942 | 194 // check if browser supports AJAX-like URL-replace without reload |
| 195 data.hasAsyncReload = (typeof history.replaceState === 'function'); | |
| 744 | 196 // check digilib base URL |
| 197 if (elemSettings.digilibBaseUrl == null) { | |
| 198 if (isFullscreen) { | |
| 199 // take current host | |
| 200 var url = window.location.toString(); | |
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201 // assume the page lives in [webapp]/jquery/ |
| 915 | 202 var pos = url.indexOf('/jquery/'); |
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203 if (pos > 0) { |
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204 elemSettings.digilibBaseUrl = url.substring(0, pos); |
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205 } |
| 744 | 206 } else { |
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207 // may be we got the scaler URL from the img |
| 744 | 208 var url = elemSettings.scalerBaseUrl; |
| 209 if (url) { | |
| 210 // build it from scaler URL | |
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211 var pos = url.indexOf('/servlet/Scaler'); |
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212 elemSettings.digilibBaseUrl = url.substring(0, pos); |
| 744 | 213 } |
| 214 } | |
| 215 } | |
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216 // check scaler base URL |
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217 if (elemSettings.scalerBaseUrl == null) { |
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218 if (elemSettings.digilibBaseUrl) { |
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219 elemSettings.scalerBaseUrl = elemSettings.digilibBaseUrl + '/servlet/Scaler'; |
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220 } |
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221 } |
| 947 | 222 // set up event handlers |
| 223 $(data).on('update', handleUpdate); // handleUpdate needs to be the first handler for update | |
| 224 $(data).on('changeZoomArea', handleChangeZoomArea); | |
| 786 | 225 // initialise plugins |
| 787 | 226 for (n in plugins) { |
| 227 var p = plugins[n]; | |
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228 if (typeof p.init === 'function') { |
| 946 | 229 // call the plugins init() method |
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230 p.init(data); |
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231 } |
| 786 | 232 } |
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233 // get image info from server if needed |
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234 if (data.scaleMode === 'pixel' || data.scaleMode === 'size') { |
| 797 | 235 loadImageInfo(data); // triggers "imageInfo" on completion |
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236 } |
| 947 | 237 // create HTML structure for scaler |
| 779 | 238 setupScalerDiv(data); |
| 668 | 239 // about window creation - TODO: could be deferred? restrict to only one item? |
| 240 setupAboutDiv(data); | |
| 856 | 241 // arrow overlays for moving zoomed detail |
| 242 setupZoomArrows(data); | |
| 795 | 243 // send setup event |
| 244 $(data).trigger('setup'); | |
| 668 | 245 }); |
| 246 }, | |
| 247 | |
| 248 // destroy: clean up digilib | |
| 249 destroy : function(data) { | |
| 250 return this.each(function(){ | |
| 251 var $elem = $(this); | |
| 917 | 252 $(window).off('.digilib'); // unbind all digilibs(?) |
| 668 | 253 data.digilib.remove(); |
| 254 $elem.removeData('digilib'); | |
| 255 }); | |
| 256 }, | |
| 257 | |
| 258 // show or hide the 'about' window | |
| 259 showAboutDiv : function(data, show) { | |
| 765 | 260 var on = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); |
| 261 data.settings.isAboutDivVisible = on; | |
| 946 | 262 //FIXME: highlightButtons(data, 'help', on); |
| 668 | 263 }, |
| 655 | 264 |
| 668 | 265 // goto given page nr (+/-: relative) |
| 266 gotoPage : function (data, pageNr) { | |
| 267 var settings = data.settings; | |
| 268 var oldpn = settings.pn; | |
| 716 | 269 if (pageNr == null) { |
| 270 pageNr = window.prompt("Goto page number", oldpn); | |
| 271 } | |
| 668 | 272 var pn = setNumValue(settings, "pn", pageNr); |
| 273 if (pn == null) return false; // nothing happened | |
| 274 if (pn < 1) { | |
| 275 alert("no such page (page number too low)"); | |
| 276 settings.pn = oldpn; | |
| 277 return false; | |
| 278 } | |
| 767 | 279 // TODO: how do we get pt? |
| 668 | 280 if (settings.pt) { |
| 281 if (pn > settings.pt) { | |
| 282 alert("no such page (page number too high)"); | |
| 623 | 283 settings.pn = oldpn; |
| 284 return false; | |
| 634 | 285 } |
| 668 | 286 } |
| 287 // reset mk and others(?) | |
| 288 data.marks = []; | |
| 927 | 289 data.zoomArea = FULL_AREA.copy(); |
| 668 | 290 // then reload |
| 291 redisplay(data); | |
| 292 }, | |
| 654 | 293 |
| 668 | 294 // zoom by a given factor |
| 295 zoomBy : function (data, factor) { | |
| 296 zoomBy(data, factor); | |
| 297 }, | |
| 647 | 298 |
| 767 | 299 // zoom to area (or interactive) |
| 300 zoomArea : function (data, area) { | |
| 301 if (area == null) { | |
| 302 // interactively | |
| 303 zoomArea(data); | |
| 304 } else { | |
| 305 data.zoomArea = geom.rectangle(area); | |
| 306 redisplay(data); | |
| 307 } | |
| 668 | 308 }, |
| 650 | 309 |
| 668 | 310 // zoom out to full page |
| 311 zoomFull : function (data, mode) { | |
| 917 | 312 data.zoomArea = FULL_AREA.copy(); |
| 668 | 313 if (mode === 'width') { |
| 314 data.dlOpts.fitwidth = 1; | |
| 315 delete data.dlOpts.fitheight; | |
| 316 } else if (mode === 'height') { | |
| 317 data.dlOpts.fitheight = 1; | |
| 318 delete data.dlOpts.fitwidth; | |
| 319 } else { | |
| 320 delete data.dlOpts.fitwidth; | |
| 321 delete data.dlOpts.fitheight; | |
| 322 } | |
| 323 redisplay(data); | |
| 324 }, | |
| 325 | |
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326 // move zoomed area |
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327 moveZoomArea : function (data, dx, dy) { |
| 944 | 328 var za = data.zoomArea.copy(); |
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329 var factor = data.settings.zoomArrowMoveFactor; |
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330 var deltaX = dx * factor * za.width; |
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331 var deltaY = dy * factor * za.height; |
| 931 | 332 var delta = geom.position(deltaX, deltaY); |
| 333 za.addPosition(delta); | |
| 944 | 334 za = FULL_AREA.fit(za); |
|
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335 setZoomArea(data, za); |
|
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336 redisplay(data); |
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337 }, |
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338 |
| 668 | 339 // set a mark by clicking (or giving a position) |
| 340 setMark : function (data, mpos) { | |
| 341 if (mpos == null) { | |
| 342 // interactive | |
| 343 setMark(data); | |
| 344 } else { | |
| 345 // use position | |
| 346 data.marks.push(pos); | |
| 663 | 347 redisplay(data); |
| 604 | 348 } |
| 668 | 349 }, |
| 350 | |
| 351 // remove the last mark | |
| 352 removeMark : function (data) { | |
| 353 data.marks.pop(); | |
| 354 redisplay(data); | |
| 355 }, | |
| 356 | |
| 357 // mirror the image | |
| 358 mirror : function (data, mode) { | |
| 359 var flags = data.scalerFlags; | |
| 360 if (mode === 'h') { | |
| 361 if (flags.hmir) { | |
| 362 delete flags.hmir; | |
| 363 } else { | |
| 364 flags.hmir = 1; | |
| 365 } | |
| 366 } else { | |
| 367 if (flags.vmir) { | |
| 368 delete flags.vmir; | |
| 369 } else { | |
| 370 flags.vmir = 1; | |
| 371 } | |
| 372 } | |
| 373 redisplay(data); | |
| 374 }, | |
| 650 | 375 |
| 668 | 376 // rotate the image |
| 377 rotate : function (data, angle) { | |
| 378 var rot = data.settings.rot; | |
| 379 if (angle == null) { | |
| 380 angle = window.prompt("Rotation angle:", rot); | |
| 381 } | |
| 382 data.settings.rot = angle; | |
| 383 redisplay(data); | |
| 384 }, | |
| 385 | |
| 386 // change brightness | |
| 387 brightness : function (data, factor) { | |
| 388 var brgt = data.settings.brgt; | |
| 389 if (factor == null) { | |
| 390 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 391 } | |
| 392 data.settings.brgt = factor; | |
| 393 redisplay(data); | |
| 394 }, | |
| 395 | |
| 396 // change contrast | |
| 397 contrast : function (data, factor) { | |
| 398 var cont = data.settings.cont; | |
| 399 if (factor == null) { | |
| 400 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 401 } | |
| 402 data.settings.cont = factor; | |
| 403 redisplay(data); | |
| 688 | 404 }, |
| 710 | 405 |
|
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406 // reset image parameters to defaults TODO: improve this! |
| 688 | 407 reset : function (data) { |
| 408 var settings = data.settings; | |
| 409 var paramNames = settings.digilibParamNames; | |
| 410 var params = data.queryParams; | |
| 411 // delete all digilib parameters | |
| 412 for (var i = 0; i < paramNames.length; i++) { | |
| 413 var paramName = paramNames[i]; | |
| 414 delete settings[paramName]; | |
|
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415 } |
|
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416 settings.fn = params.fn || ''; // no default defined |
|
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417 settings.pn = params.pn || defaults.pn; |
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418 settings.dw = params.dw; |
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419 settings.dh = params.dh; |
| 709 | 420 settings.isBirdDivVisible = false; |
| 946 | 421 settings.visibleButtonSets = 1; // FIXME |
|
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422 // resets zoomArea, marks, scalerflags |
| 917 | 423 data.zoomArea = FULL_AREA.copy(); |
|
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424 data.marks = []; |
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425 data.scalerFlags = {}; |
| 712 | 426 delete data.dlOpts.fitwidth; |
| 427 delete data.dlOpts.fitheight; | |
| 688 | 428 redisplay(data); |
| 689 | 429 }, |
| 430 | |
| 703 | 431 // presents a reference url (returns value if noprompt) |
| 432 reference : function (data, noprompt) { | |
| 744 | 433 var url = getDigilibUrl(data); |
| 703 | 434 if (noprompt == null) { |
| 435 window.prompt("URL reference to the current view", url); | |
| 436 } | |
| 437 return url; | |
| 438 }, | |
| 710 | 439 |
| 703 | 440 // set image quality |
| 748 | 441 setQuality : function (data, qual) { |
| 703 | 442 var oldq = getQuality(data); |
| 443 if (qual == null) { | |
| 444 qual = window.prompt("Image quality (0..2)", oldq); | |
| 445 } | |
| 446 qual = parseInt(qual, 10); | |
| 447 if (qual >= 0 && qual <= 2) { | |
| 448 setQuality(data, qual); | |
| 449 redisplay(data); | |
| 450 } | |
|
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451 }, |
|
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452 |
|
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453 // calibrate (only faking) |
|
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454 calibrate : function (data, res) { |
|
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455 var oldRes = data.settings.ddpi; |
|
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456 if (res == null) { |
|
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457 res = window.prompt("Display resolution (dpi)", oldRes); |
|
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458 } |
|
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459 if (res != null) { |
|
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460 data.settings.ddpi = res; |
|
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461 redisplay(data); |
|
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462 } |
|
760
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463 }, |
| 775 | 464 |
|
761
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465 // set image scale mode |
|
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466 setScaleMode : function (data, mode) { |
|
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467 var oldM = getScaleMode(data); |
|
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468 if (mode == null) { |
|
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469 mode = window.prompt("Image scale mode (screen, pixel, size)", oldM); |
|
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470 } |
|
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471 if (mode != null) { |
|
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472 setScaleMode(data, mode); |
|
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473 data.scaleMode = mode; |
|
761
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474 redisplay(data); |
|
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475 } |
|
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476 } |
| 775 | 477 |
|
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|
478 // end of actions |
| 605 | 479 }; |
| 604 | 480 |
| 608 | 481 // returns parameters from page url |
| 607 | 482 var parseQueryParams = function() { |
| 636 | 483 return parseQueryString(window.location.search.slice(1)); |
| 484 }; | |
| 655 | 485 |
| 636 | 486 // returns parameters from embedded img-element |
| 607 | 487 var parseImgParams = function($elem) { |
|
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488 var src = $elem.find('img').first().attr('src'); |
| 710 | 489 if (!src) return null; |
| 607 | 490 var pos = src.indexOf('?'); |
| 491 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 492 var scalerUrl = src.substring(0, pos); | |
| 627 | 493 var params = parseQueryString(query); |
| 494 params.scalerBaseUrl = scalerUrl; | |
| 495 return params; | |
| 636 | 496 }; |
| 607 | 497 |
| 608 | 498 // parses query parameter string into parameter object |
| 607 | 499 var parseQueryString = function(query) { |
| 701 | 500 var params = {}; |
| 501 if (query == null) return params; | |
| 607 | 502 var pairs = query.split("&"); |
| 636 | 503 //var keys = []; |
| 607 | 504 for (var i = 0; i < pairs.length; i++) { |
| 505 var pair = pairs[i].split("="); | |
| 506 if (pair.length === 2) { | |
| 627 | 507 params[pair[0]] = pair[1]; |
| 636 | 508 //keys.push(pair[0]); |
| 634 | 509 } |
| 636 | 510 } |
| 627 | 511 return params; |
| 636 | 512 }; |
| 668 | 513 |
| 643 | 514 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 515 var getParamString = function (settings, keys, defaults) { | |
| 615 | 516 var paramString = ''; |
| 650 | 517 var nx = false; |
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518 for (var i = 0; i < keys.length; ++i) { |
| 615 | 519 var key = keys[i]; |
| 663 | 520 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 615 | 521 // first param gets no '&' |
| 650 | 522 if (nx) { |
| 523 paramString += '&'; | |
| 524 } else { | |
| 525 nx = true; | |
| 526 } | |
| 615 | 527 // add parm=val |
| 528 paramString += key + '=' + settings[key]; | |
| 643 | 529 } |
| 615 | 530 } |
| 531 return paramString; | |
| 631 | 532 }; |
| 533 | |
| 636 | 534 // returns URL and query string for Scaler |
| 535 var getScalerUrl = function (data) { | |
| 741 | 536 packParams(data); |
| 653 | 537 var settings = data.settings; |
| 652 | 538 if (settings.scalerBaseUrl == null) { |
| 539 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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540 } |
| 636 | 541 var keys = settings.scalerParamNames; |
| 643 | 542 var queryString = getParamString(settings, keys, defaults); |
| 636 | 543 var url = settings.scalerBaseUrl + '?' + queryString; |
| 544 return url; | |
| 545 }; | |
| 546 | |
| 741 | 547 // returns URL for bird's eye view image |
| 795 | 548 var getBgImgUrl = function (data, moreParams) { |
| 741 | 549 var settings = data.settings; |
| 795 | 550 var bgOptions = { |
| 551 dw : settings.bgImgWidth, | |
| 552 dh : settings.bgImgHeight | |
| 741 | 553 }; |
| 795 | 554 var bgSettings = $.extend({}, settings, bgOptions); |
| 931 | 555 // filter scaler flags (use only hmir and vmir) |
| 795 | 556 if (bgSettings.mo != null) { |
| 557 var mo = ''; | |
| 558 if (data.scalerFlags.hmir != null) { | |
| 559 mo += 'hmir,'; | |
| 767 | 560 } |
| 795 | 561 if (data.scalerFlags.vmir != null) { |
| 562 mo += 'vmir'; | |
| 563 } | |
| 564 bgSettings.mo = mo; | |
| 743 | 565 } |
| 948 | 566 var params = getParamString(bgSettings, settings.bgImgParamNames, defaults); |
| 743 | 567 var url = settings.scalerBaseUrl + '?' + params; |
| 741 | 568 return url; |
| 569 }; | |
|
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570 |
| 636 | 571 // returns URL and query string for current digilib |
|
644
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572 var getDigilibUrl = function (data) { |
| 643 | 573 packParams(data); |
| 636 | 574 var settings = data.settings; |
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575 var paramList = settings.additionalParamNames.concat(settings.digilibParamNames); |
| 914 | 576 if (settings.suppressParamNames != null) { |
| 577 // eliminate suppressed parameters from list | |
| 578 paramList = $.map(paramList, function(e, idx) { | |
| 579 if ($.inArray(e, settings.suppressParamNames) >= 0) { | |
| 580 return null; | |
| 581 } else { | |
| 582 return e; | |
| 583 } | |
| 584 }); | |
| 585 } | |
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586 var queryString = getParamString(settings, paramList, defaults); |
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587 // take url from current location |
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588 var url = window.location.href; |
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589 var pos = url.indexOf('?'); |
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590 if (pos > -1) { |
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591 url = url.substring(0, pos); |
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592 } |
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|
593 return url + '?' + queryString; |
| 636 | 594 }; |
| 595 | |
| 797 | 596 // loads image information from digilib server via HTTP |
| 597 var loadImageInfo = function (data) { | |
|
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598 var settings = data.settings; |
| 917 | 599 // bind default function (only once) |
| 600 $(data).off('imageInfo', handleImageInfo); | |
| 601 $(data).on('imageInfo', handleImageInfo); | |
| 602 var url = settings.digilibBaseUrl + '/ImgInfo-json.jsp'; | |
|
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603 url += '?' + getParamString(settings, ['fn', 'pn'], defaults); |
| 767 | 604 // TODO: better error handling |
| 785 | 605 $.getJSON(url, function (json) { |
|
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606 console.debug("got json data=", json); |
|
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607 data.imgInfo = json; |
| 797 | 608 // send event |
| 609 $(data).trigger('imageInfo', [json]); | |
|
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610 }); |
|
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|
611 }; |
| 775 | 612 |
| 655 | 613 // processes some parameters into objects and stuff |
| 631 | 614 var unpackParams = function (data) { |
| 615 var settings = data.settings; | |
| 636 | 616 // zoom area |
| 631 | 617 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 643 | 618 data.zoomArea = zoomArea; |
| 636 | 619 // marks |
| 631 | 620 var marks = []; |
| 949 | 621 var pa; |
| 650 | 622 if (settings.mk) { |
| 623 var mk = settings.mk; | |
| 624 if (mk.indexOf(";") >= 0) { | |
| 949 | 625 pa = mk.split(";"); // old format with ";" |
| 650 | 626 } else { |
| 949 | 627 pa = mk.split(","); // new format |
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628 } |
| 650 | 629 for (var i = 0; i < pa.length ; i++) { |
| 630 var pos = pa[i].split("/"); | |
| 631 if (pos.length > 1) { | |
| 632 marks.push(geom.position(pos[0], pos[1])); | |
|
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633 } |
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634 } |
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635 } |
| 643 | 636 data.marks = marks; |
| 650 | 637 // mo (Scaler flags) |
| 638 var flags = {}; | |
| 639 if (settings.mo) { | |
| 640 var pa = settings.mo.split(","); | |
| 641 for (var i = 0; i < pa.length ; i++) { | |
| 642 flags[pa[i]] = pa[i]; | |
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643 } |
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644 } |
| 650 | 645 data.scalerFlags = flags; |
|
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|
646 data.scaleMode = getScaleMode(data); |
| 723 | 647 retrieveOptions(data); |
| 655 | 648 }; |
| 649 | |
| 822 | 650 // put area into parameters |
| 651 var packArea = function (settings, area) { | |
| 652 if (!area) return; | |
| 653 // zoom area | |
| 654 settings.wx = cropFloat(area.x); | |
| 655 settings.wy = cropFloat(area.y); | |
| 656 settings.ww = cropFloat(area.width); | |
| 657 settings.wh = cropFloat(area.height); | |
| 658 }; | |
| 659 | |
| 660 // put marks into parameters | |
| 661 var packMarks = function (settings, marks) { | |
| 662 if (!marks) return; | |
| 663 settings.mk = ''; | |
| 664 for (var i = 0; i < marks.length; i++) { | |
| 665 if (i) { | |
| 666 settings.mk += ','; | |
| 667 } | |
| 668 settings.mk += | |
| 669 cropFloatStr(marks[i].x) + '/' + | |
| 670 cropFloatStr(marks[i].y); | |
| 671 } | |
| 672 }; | |
| 673 | |
| 674 // pack scaler flags into parameters | |
| 675 var packScalerFlags = function (settings, flags) { | |
| 676 if (!flags) return; | |
| 677 var mo = ''; | |
| 678 for (var f in flags) { | |
| 679 if (mo) { | |
| 680 mo += ','; | |
| 681 } | |
| 682 mo += f; | |
| 683 } | |
| 684 settings.mo = mo; | |
| 685 }; | |
| 686 | |
| 631 | 687 // put objects back into parameters |
| 688 var packParams = function (data) { | |
| 689 var settings = data.settings; | |
| 822 | 690 packArea(settings, data.zoomArea); |
| 691 packMarks(settings, data.marks); | |
| 692 packScalerFlags(settings, data.scalerFlags); | |
| 693 // store user interface options in cookie | |
| 723 | 694 storeOptions(data); |
| 709 | 695 }; |
| 688 | 696 |
| 723 | 697 var storeOptions = function (data) { |
| 701 | 698 // save digilib options in cookie |
| 709 | 699 var settings = data.settings; |
| 700 if (data.dlOpts) { | |
| 701 // save digilib settings in options | |
| 702 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
| 703 data.dlOpts.buttons = settings.visibleButtonSets; | |
| 704 var clop = ''; | |
| 705 for (var o in data.dlOpts) { | |
| 706 if (clop) { | |
| 707 clop += '&'; | |
|
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708 } |
| 709 | 709 clop += o + '=' + data.dlOpts[o]; |
|
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710 } |
| 785 | 711 if ($.cookie) { |
| 709 | 712 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; |
| 713 console.debug("set cookie=", ck, " value=", clop); | |
| 785 | 714 $.cookie(ck, clop); |
|
713
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715 } |
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716 } |
| 785 | 717 if (settings.interactionMode !== 'fullscreen' && $.cookie) { |
| 727 | 718 // store normal parameters in cookie for embedded mode |
| 719 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
| 720 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 721 console.debug("set cookie=", ck, " value=", qs); | |
| 785 | 722 $.cookie(ck, qs); |
| 727 | 723 } |
| 631 | 724 }; |
| 655 | 725 |
| 723 | 726 var retrieveOptions = function (data) { |
| 709 | 727 // clop (digilib options) |
| 728 var opts = {}; | |
| 729 var settings = data.settings; | |
| 785 | 730 if ($.cookie) { |
| 709 | 731 // read from cookie |
| 732 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 785 | 733 var cp = $.cookie(ck); |
| 709 | 734 console.debug("get cookie=", ck, " value=", cp); |
| 735 // in query string format | |
| 736 opts = parseQueryString(cp); | |
|
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737 } |
| 709 | 738 data.dlOpts = opts; |
| 739 // birdview option | |
| 740 if (opts.birdview != null) { | |
| 741 settings.isBirdDivVisible = opts.birdview === '1'; | |
|
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742 } |
| 709 | 743 // visible button sets |
| 744 if (opts.buttons != null) { | |
| 745 settings.visibleButtonSets = opts.buttons; | |
|
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|
746 } |
| 711 | 747 }; |
| 709 | 748 |
| 949 | 749 /** (re)load the image with the current settings. |
| 750 * | |
| 751 */ | |
|
644
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reload doesn't take list of changed parameters any more
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|
752 var redisplay = function (data) { |
| 636 | 753 var settings = data.settings; |
| 754 if (settings.interactionMode === 'fullscreen') { | |
| 755 // update location.href (browser URL) in fullscreen mode | |
|
644
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|
756 var url = getDigilibUrl(data); |
| 636 | 757 var history = window.history; |
| 942 | 758 if (data.hasAsyncReload) { |
|
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759 console.debug("faking reload to "+url); |
|
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760 // change url without reloading (stateObj, title, url) |
|
890
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|
761 // TODO: we really need to push the state in stateObj and listen to pop-events |
|
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762 try { |
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|
763 history.replaceState({}, '', url); |
| 931 | 764 // show busy cursor |
| 765 $('body').css('cursor', 'progress'); | |
| 934 | 766 data.$scaler.css('cursor', 'progress'); |
|
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|
767 // change img src |
| 949 | 768 var $img = data.$img; |
|
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|
769 var imgurl = getScalerUrl(data); |
| 949 | 770 $img.attr('src', imgurl); |
|
952
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771 // trigger load event if image is cached. Doesn't work with Firefox!! |
|
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772 //if ($img.prop('complete')) $img.trigger('load'); |
| 917 | 773 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { |
| 774 // we need image info, do we have it? | |
| 775 if (data.imgInfo == null) { | |
| 776 loadImageInfo(data); | |
| 777 } | |
| 778 } | |
|
950
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779 // update if we have a preview |
|
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780 if (data.hasPreviewBg) { |
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|
781 $(data).trigger('update'); |
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|
782 } |
| 946 | 783 //FIXME: highlightButtons(data); |
|
913
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784 // send event |
|
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785 $(data).trigger('redisplay'); |
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786 } catch (e) { |
|
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|
787 console.error("replaceState("+url+") didn't work: "+e); |
|
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788 // reload window |
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789 window.location = url; |
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|
790 } |
|
798
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791 } else { |
|
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|
792 // reload window |
|
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793 window.location = url; |
|
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794 } |
| 636 | 795 } else { |
| 796 // embedded mode -- just change img src | |
| 931 | 797 // show busy cursor |
| 798 $('body').css('cursor', 'progress'); | |
| 934 | 799 data.$scaler.css('cursor', 'progress'); |
| 949 | 800 var $img = data.$img; |
| 636 | 801 var url = getScalerUrl(data); |
| 949 | 802 $img.attr('src', url); |
| 803 // trigger load event if image is cached | |
| 804 if ($img.prop('complete')) $img.trigger('load'); | |
| 917 | 805 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { |
| 806 // we need image info, do we have it? | |
| 807 if (data.imgInfo == null) { | |
| 808 loadImageInfo(data); | |
| 809 } | |
| 810 } | |
| 949 | 811 //FIXME: highlightButtons(data); |
| 795 | 812 // send event |
| 813 $(data).trigger('redisplay'); | |
|
913
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|
814 } |
| 622 | 815 }; |
| 816 | |
| 949 | 817 /** update display (overlays etc.) |
| 818 * (just triggers "update" event) | |
| 819 */ | |
| 767 | 820 var updateDisplay = function (data) { |
| 947 | 821 // send event |
| 822 $(data).trigger('update'); | |
| 823 }; | |
| 824 | |
| 949 | 825 /** handle "update" display event. |
| 826 * updates overlays etc. | |
| 827 */ | |
| 947 | 828 var handleUpdate = function (evt) { |
| 829 var data = this; | |
| 767 | 830 updateImgTrafo(data); |
| 831 renderMarks(data); | |
| 832 setupZoomDrag(data); | |
| 862 | 833 renderZoomArrows(data); |
| 767 | 834 }; |
| 947 | 835 |
| 949 | 836 /** returns maximum size for scaler img in fullscreen mode. |
| 837 * | |
| 838 */ | |
| 778 | 839 var getFullscreenImgSize = function (data) { |
|
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840 var mode = data.settings.interactionMode; |
| 662 | 841 var $win = $(window); |
| 842 var winH = $win.height(); | |
| 779 | 843 var winW = $win.width(); |
| 844 var $body = $('body'); | |
|
886
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|
845 // include standard body margins and check plausibility |
| 780 | 846 var borderW = $body.outerWidth(true) - $body.width(); |
|
886
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|
847 if (borderW === 0 || borderW > 100) { |
|
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diff
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|
848 console.debug("fixing border width for getFullscreenImgSize!"); |
|
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|
849 borderW = data.settings.scalerInset; |
|
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|
850 } |
| 780 | 851 var borderH = $body.outerHeight(true) - $body.height(); |
|
886
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852 if (borderH === 0 || borderH > 100) { |
|
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|
853 console.debug("fixing border height for getFullscreenImgSize!"); |
|
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changeset
|
854 borderH = 5; |
|
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|
855 } |
| 946 | 856 var buttonsW = 0; |
|
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857 if (data.settings.visibleButtonSets) { |
|
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|
858 // get button width from settings |
| 947 | 859 buttonsW = data.settings.buttonSettings[mode].buttonSetWidth * data.settings.visibleButtonSets; |
| 779 | 860 } |
| 861 // account for left/right border, body margins and additional requirements | |
|
886
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|
862 var imgW = winW - borderW - buttonsW; |
|
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|
863 var imgH = winH - borderH; |
|
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|
864 console.debug(winW, winH, 'winW:', $win.width(), 'border:', borderW, 'buttonsW:', buttonsW, 'calc:', imgW); |
|
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|
865 return geom.size(imgW, imgH); |
| 662 | 866 }; |
| 867 | |
| 949 | 868 /** creates HTML structure for digilib in elem |
| 869 * | |
| 870 */ | |
| 627 | 871 var setupScalerDiv = function (data) { |
| 872 var settings = data.settings; | |
| 647 | 873 var $elem = data.$elem; |
| 725 | 874 $elem.addClass('digilib'); |
| 728 | 875 var $img; |
| 876 var scalerUrl; | |
| 608 | 877 if (settings.interactionMode === 'fullscreen') { |
| 728 | 878 // fullscreen |
| 725 | 879 $elem.addClass('dl_fullscreen'); |
| 778 | 880 var imgSize = getFullscreenImgSize(data); |
| 650 | 881 // fitwidth/height omits destination height/width |
| 728 | 882 if (data.dlOpts.fitheight == null) { |
| 650 | 883 settings.dw = imgSize.width; |
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884 } |
| 728 | 885 if (data.dlOpts.fitwidth == null) { |
| 650 | 886 settings.dh = imgSize.height; |
|
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|
887 } |
| 686 | 888 scalerUrl = getScalerUrl(data); |
| 728 | 889 $img = $('<img/>'); |
| 609 | 890 } else { |
| 728 | 891 // embedded mode -- try to keep img tag |
| 725 | 892 $elem.addClass('dl_embedded'); |
| 728 | 893 scalerUrl = getScalerUrl(data); |
| 623 | 894 $img = $elem.find('img'); |
|
613
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diff
changeset
|
895 if ($img.length > 0) { |
|
870
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changeset
|
896 var oldUrl = $img.attr('src'); |
|
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diff
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|
897 // keep img attributes from html |
|
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hertzhaft
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869
diff
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|
898 var title = $img.attr('title'); |
|
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|
899 var alt = $img.attr('alt'); |
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900 if (oldUrl === scalerUrl) { |
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parents:
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|
901 console.debug("img detach:", $img); |
|
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hertzhaft
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|
902 $img.detach(); |
|
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903 } else { |
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hertzhaft
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|
904 $img = $('<img/>'); |
|
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|
905 $img.attr("title", title); |
|
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|
906 $img.attr("alt", alt); |
| 728 | 907 } |
|
613
53ee659e2d00
keeping img tag for embedded mode seems to work now
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|
908 } else { |
|
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|
909 $img = $('<img/>'); |
|
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|
910 } |
| 608 | 911 } |
| 822 | 912 // create new inner html, keeping buttons and content marked with "keep" class |
| 913 $elem.contents(":not(.keep)").remove(); | |
|
613
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robcast
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|
914 var $scaler = $('<div class="scaler"/>'); |
| 779 | 915 // scaler should be the first child element? |
| 916 $elem.prepend($scaler); | |
|
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diff
changeset
|
917 $scaler.append($img); |
| 622 | 918 $img.addClass('pic'); |
| 649 | 919 data.$scaler = $scaler; |
| 636 | 920 data.$img = $img; |
| 947 | 921 // set busy cursor |
| 922 $('body').css('cursor','progress'); | |
| 923 data.$scaler.css('cursor', 'progress'); | |
| 942 | 924 // set up image load handler before setting the src attribute (IE bug) |
| 687 | 925 $img.load(scalerImgLoadedHandler(data)); |
| 767 | 926 $img.error(function () {console.error("error loading scaler image");}); |
| 687 | 927 $img.attr('src', scalerUrl); |
| 608 | 928 }; |
| 615 | 929 |
| 949 | 930 /** create arrow overlays for moving the zoomed area. |
| 931 * | |
| 932 */ | |
| 856 | 933 var setupZoomArrows = function (data) { |
| 934 var $elem = data.$elem; | |
| 935 var settings = data.settings; | |
| 877 | 936 var show = settings.showZoomArrows; |
| 856 | 937 console.log('zoom arrows:', show); |
| 938 if (!show) return; | |
| 877 | 939 var mode = settings.interactionMode; |
| 940 var arrowNames = settings.buttonSettings[mode].arrowSet; | |
| 879 | 941 if (arrowNames == null) return; |
| 877 | 942 // arrow divs are marked with class "keep" |
| 943 var $arrowsDiv = $('<div class="keep arrows"/>'); | |
| 944 $elem.append($arrowsDiv); | |
| 945 // create all arrow buttons | |
| 946 | 946 // TODO: do this without buttons plugin? |
| 877 | 947 $.each(arrowNames, function(i, arrowName){ |
| 946 | 948 fn.createButton(data, $arrowsDiv, arrowName); |
| 877 | 949 }); |
| 856 | 950 }; |
| 951 | |
| 949 | 952 /** size and show arrow overlays, called after scaler img is loaded. |
| 953 * | |
| 954 */ | |
| 862 | 955 var renderZoomArrows = function (data) { |
| 877 | 956 var settings = data.settings; |
| 957 var $arrowsDiv = data.$elem.find('div.arrows'); | |
| 879 | 958 if (isFullArea(data.zoomArea) || !settings.showZoomArrows) { |
| 959 $arrowsDiv.hide(); | |
| 960 return; | |
| 961 } | |
| 962 $arrowsDiv.show(); | |
| 877 | 963 var r = geom.rectangle(data.$scaler); |
| 964 // calculate arrow bar width | |
| 965 var aw = settings.zoomArrowWidth; | |
| 966 var minWidth = settings.zoomArrowMinWidth; | |
| 967 // arrow bar width should not exceed 10% of scaler width/height | |
| 968 var maxWidth = Math.min(r.width, r.height)/10; | |
| 969 if (aw > maxWidth) { | |
| 970 aw = maxWidth; | |
| 971 if (aw < minWidth) { | |
| 972 aw = minWidth; | |
| 973 } | |
| 974 } | |
| 879 | 975 // vertical position of left/right image |
| 878 | 976 var arrowData = [{ |
| 977 name : 'up', | |
| 978 rect : geom.rectangle(r.x, r.y, r.width, aw), | |
| 979 show : canMove(data, 0, -1) | |
| 980 }, { | |
| 981 name : 'down', | |
| 879 | 982 rect : geom.rectangle(r.x, r.y + r.height - aw, r.width, aw), |
| 878 | 983 show : canMove(data, 0, 1) |
| 984 }, { | |
| 985 name : 'left', | |
| 986 rect : geom.rectangle(r.x, r.y, aw, r.height), | |
| 884 | 987 show : canMove(data, -1, 0) |
| 878 | 988 }, { |
| 989 name : 'right', | |
| 990 rect : geom.rectangle(r.x + r.width - aw, r.y, aw, r.height), | |
| 991 show : canMove(data, 1, 0) | |
| 992 }]; | |
| 993 // render a single zoom Arrow | |
| 994 var render = function (i, item) { | |
| 995 var $arrow = $arrowsDiv.find('div.button-' + item.name); | |
| 996 if (item.show) { | |
| 997 $arrow.show(); | |
| 998 } else { | |
| 999 $arrow.hide(); | |
| 879 | 1000 return; |
| 878 | 1001 } |
| 879 | 1002 var r = item.rect; |
| 1003 r.adjustDiv($arrow); | |
| 1004 var $a = $arrow.contents('a'); | |
| 1005 var $img = $a.contents('img'); | |
| 1006 $img.width(aw).height(aw); | |
| 1007 // hack for missing vertical-align | |
| 1008 if (item.name.match(/left|right/)) { | |
| 1009 var top = (r.height - $a.height())/2; | |
| 1010 $a.css({'top' : top}); // position : 'relative' | |
| 1011 } | |
| 878 | 1012 }; |
| 1013 $.each(arrowData, render); | |
| 862 | 1014 }; |
| 1015 | |
| 949 | 1016 /** creates HTML structure for the about view in elem |
| 1017 * | |
| 1018 */ | |
|
628
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|
1019 var setupAboutDiv = function (data) { |
| 647 | 1020 var $elem = data.$elem; |
|
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|
1021 var settings = data.settings; |
| 625 | 1022 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
|
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|
1023 var $header = $('<p>Digilib Image Viewer</p>'); |
| 616 | 1024 var $link = $('<a/>'); |
| 1025 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 1026 var $content = $('<p/>'); | |
| 1027 $elem.append($aboutDiv); | |
| 1028 $aboutDiv.append($header); | |
| 1029 $aboutDiv.append($link); | |
| 1030 $aboutDiv.append($content); | |
| 1031 $link.append($logo); | |
|
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|
1032 logoUrl = settings.logoUrl; |
|
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|
1033 // make relative logoUrl absolute |
|
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|
1034 if (logoUrl.charAt(0) !== '/' && logoUrl.substring(0,3) !== 'http') { |
|
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|
1035 logoUrl = settings.digilibBaseUrl + '/' + logoUrl; |
|
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|
1036 } |
|
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|
1037 $logo.attr('src', logoUrl); |
| 635 | 1038 $link.attr('href', settings.homeUrl); |
| 616 | 1039 $content.text('Version: ' + settings.version); |
| 775 | 1040 data.$aboutDiv = $aboutDiv; |
| 635 | 1041 // click hides |
| 917 | 1042 $aboutDiv.on('click.digilib', function () { |
| 775 | 1043 actions['showAboutDiv'](data, false); |
| 710 | 1044 }); |
| 634 | 1045 }; |
| 1046 | |
| 949 | 1047 /** shows some window e.g. 'about' (toggle visibility if show is null) |
| 1048 * | |
| 1049 */ | |
| 635 | 1050 var showDiv = function (isVisible, $div, show) { |
| 645 | 1051 if (show == null) { |
| 635 | 1052 // toggle visibility |
| 1053 isVisible = !isVisible; | |
| 1054 } else { | |
| 1055 // set visibility | |
| 1056 isVisible = show; | |
|
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|
1057 } |
| 635 | 1058 if (isVisible) { |
| 1059 $div.fadeIn(); | |
| 1060 } else { | |
| 1061 $div.fadeOut(); | |
|
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|
1062 } |
| 635 | 1063 return isVisible; |
| 634 | 1064 }; |
| 616 | 1065 |
| 949 | 1066 /** Create Transform from zoom area and image size and parameters. |
| 1067 * Returns Transform between normalized coordinates and image pixel coordinates. | |
| 1068 */ | |
|
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|
1069 var getImgTrafo = function ($img, area, rot, hmir, vmir, mode, data) { |
|
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|
1070 var picrect = geom.rectangle($img); |
| 949 | 1071 // handle pixel-by-pixel and original-size modes |
|
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|
1072 if (mode != null) { |
|
772
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|
1073 var imgInfo = data.imgInfo; |
|
763
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|
1074 if (mode === 'pixel') { |
|
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|
1075 // scaler mo=clip - image area size does not come from ww, wh |
|
31664707999e
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|
1076 if (imgInfo != null) { |
|
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|
1077 area.width = picrect.width / imgInfo.width; |
|
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|
1078 area.height = picrect.height / imgInfo.height; |
|
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|
1079 } else { |
|
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|
1080 console.error("No image info for pixel mode!"); |
|
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|
1081 } |
|
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|
1082 } |
|
772
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|
1083 if (mode === 'size') { |
|
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|
1084 // scaler mo=osize - image area size does not come from ww, wh |
|
33b5477f8d84
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changeset
|
1085 if (imgInfo != null) { |
|
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|
1086 var ddpi = parseFloat(data.settings.ddpi); |
|
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|
1087 area.width = (picrect.width / ddpi) / (imgInfo.width / imgInfo.dpi_x); |
|
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changeset
|
1088 area.height = (picrect.height / ddpi) / (imgInfo.height / imgInfo.dpi_y); |
|
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|
1089 } else { |
|
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|
1090 console.error("No image info for original size mode!"); |
|
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|
1091 } |
|
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changeset
|
1092 } |
|
763
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changeset
|
1093 } |
|
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changeset
|
1094 var trafo = geom.transform(); |
| 675 | 1095 // move zoom area offset to center |
|
658
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changeset
|
1096 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 675 | 1097 // scale zoom area size to [1,1] |
|
658
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changeset
|
1098 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 675 | 1099 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 1100 if (rot || hmir || vmir) { | |
| 1101 // move [0.5,0.5] to center | |
| 1102 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 1103 if (hmir) { | |
| 1104 // mirror about center | |
| 1105 trafo.concat(trafo.getMirror('y')); | |
|
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changeset
|
1106 } |
| 675 | 1107 if (vmir) { |
| 1108 // mirror about center | |
| 1109 trafo.concat(trafo.getMirror('x')); | |
|
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|
1110 } |
| 675 | 1111 if (rot) { |
| 1112 // rotate around center | |
| 1113 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
|
713
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changeset
|
1114 } |
| 675 | 1115 // move back |
| 1116 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
|
713
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changeset
|
1117 } |
|
664
d5a5ee4cbf04
work on getting transformation to work with rotation (currently still doesn't)
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663
diff
changeset
|
1118 // scale to screen position and size |
|
658
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split bird's view code in two more parts, analog to scaler-img code.
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diff
changeset
|
1119 trafo.concat(trafo.getScale(picrect)); |
|
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changeset
|
1120 trafo.concat(trafo.getTranslation(picrect)); |
|
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changeset
|
1121 return trafo; |
| 655 | 1122 }; |
|
678
d50d24b7fd95
first step at dragging birdview zoom indicator around
hertzhaft
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677
diff
changeset
|
1123 |
| 949 | 1124 /** update current scaler image transform |
| 1125 */ | |
| 767 | 1126 var updateImgTrafo = function (data) { |
| 1127 var $img = data.$img; | |
| 895 | 1128 if ($img == null) |
| 1129 return; | |
| 1130 var imgLoaded = $.browser.msie | |
| 949 | 1131 ? $img.prop('width') > 0 |
| 1132 : $img.prop('complete'); | |
|
950
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much nicer implementation of preview for scrolling and zooming.
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diff
changeset
|
1133 if (imgLoaded || data.hasPreviewBg) { |
| 949 | 1134 // create Transform from current zoomArea and image size |
| 1135 data.imgTrafo = getImgTrafo($img, data.zoomArea, data.settings.rot, | |
| 1136 data.scalerFlags.hmir, data.scalerFlags.vmir, | |
| 1137 data.scaleMode, data); | |
| 1138 console.debug("imgTrafo=", data.imgTrafo); | |
| 1139 } | |
| 767 | 1140 }; |
| 775 | 1141 |
| 949 | 1142 /** return handler for load event of scaler img |
| 1143 * (necessary for closure with data object) | |
| 1144 */ | |
| 767 | 1145 var scalerImgLoadedHandler = function (data) { |
| 1146 return function () { | |
| 1147 var $img = $(this); | |
| 1148 console.debug("scaler img loaded=",$img); | |
| 1149 var $scaler = data.$scaler; | |
|
760
f0be4432f515
primitive plugin extension mechanism - unsure how useful this is
hertzhaft
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755
diff
changeset
|
1150 var imgRect = geom.rectangle($img); |
| 931 | 1151 data.imgRect = imgRect; |
| 934 | 1152 // reset busy cursor |
| 1153 $('body').css('cursor', 'auto'); | |
| 1154 $scaler.css('cursor', 'auto'); | |
| 733 | 1155 // adjust scaler div size |
| 738 | 1156 imgRect.adjustDiv($scaler); |
| 715 | 1157 // show image in case it was hidden (for example in zoomDrag) |
| 733 | 1158 $img.css('visibility', 'visible'); |
|
952
e3dc84cbb766
disable forced load event causing problem with firefox.
robcast
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diff
changeset
|
1159 $scaler.css({'opacity' : '1', 'background' : 'transparent'}); |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
robcast
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949
diff
changeset
|
1160 data.hasPreviewBg = false; |
| 767 | 1161 // update display (render marks, etc.) |
| 1162 updateDisplay(data); | |
|
658
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diff
changeset
|
1163 }; |
|
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diff
changeset
|
1164 }; |
|
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|
1165 |
| 949 | 1166 /** handle imageInfo loaded event |
| 1167 * | |
| 1168 */ | |
| 797 | 1169 var handleImageInfo = function (evt, json) { |
| 917 | 1170 console.debug("handleImageInfo:", json); |
| 797 | 1171 var data = this; |
| 1172 updateDisplay(data); | |
| 1173 }; | |
| 813 | 1174 |
| 949 | 1175 /** handle changeZoomArea event |
| 1176 * | |
| 1177 */ | |
| 942 | 1178 var handleChangeZoomArea = function (evt, newZa) { |
| 1179 console.debug("handleChangeZoomArea:", newZa); | |
| 1180 var data = this; | |
|
950
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|
1181 data.$elem.find(".overlay").hide(); // hide all overlays (marks/regions) |
|
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much nicer implementation of preview for scrolling and zooming.
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diff
changeset
|
1182 setPreviewBg(data, newZa); |
| 942 | 1183 }; |
| 1184 | |
| 1185 | |
| 949 | 1186 /** place marks on the image |
| 1187 * | |
| 1188 */ | |
| 633 | 1189 var renderMarks = function (data) { |
| 767 | 1190 if (data.$img == null || data.imgTrafo == null) return; |
|
850
47a6b93bde43
always show html-defined regions. wrong pos still not fixed
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849
diff
changeset
|
1191 console.debug("renderMarks: img=",data.$img," imgtrafo=",data.imgTrafo); |
| 647 | 1192 var $elem = data.$elem; |
| 643 | 1193 var marks = data.marks; |
|
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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741
diff
changeset
|
1194 // clear marks |
|
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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changeset
|
1195 $elem.find('div.mark').remove(); |
| 633 | 1196 for (var i = 0; i < marks.length; i++) { |
| 1197 var mark = marks[i]; | |
| 643 | 1198 if (data.zoomArea.containsPosition(mark)) { |
| 633 | 1199 var mpos = data.imgTrafo.transform(mark); |
| 851 | 1200 console.debug("renderMarks: pos=",mpos); |
| 633 | 1201 // create mark |
| 813 | 1202 var html = '<div class="mark overlay">'+(i+1)+'</div>'; |
| 633 | 1203 var $mark = $(html); |
|
850
47a6b93bde43
always show html-defined regions. wrong pos still not fixed
hertzhaft
parents:
849
diff
changeset
|
1204 $mark.attr("id", "digilib-mark-"+(i+1)); |
| 633 | 1205 $elem.append($mark); |
|
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
changeset
|
1206 mpos.adjustDiv($mark); |
|
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changeset
|
1207 } |
|
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|
1208 } |
| 633 | 1209 }; |
| 655 | 1210 |
| 949 | 1211 /** zoom by the given factor. |
| 1212 * | |
| 1213 */ | |
| 643 | 1214 var zoomBy = function(data, factor) { |
| 1215 var area = data.zoomArea; | |
| 1216 var newarea = area.copy(); | |
| 1217 // scale | |
| 1218 newarea.width /= factor; | |
| 1219 newarea.height /= factor; | |
| 1220 // and recenter | |
| 1221 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 1222 newarea.y -= 0.5 * (newarea.height - area.height); | |
|
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
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733
diff
changeset
|
1223 newarea = FULL_AREA.fit(newarea); |
|
950
164d69e2c481
much nicer implementation of preview for scrolling and zooming.
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diff
changeset
|
1224 setZoomArea(data, newarea); |
|
644
ee8ccd84c5f8
reload doesn't take list of changed parameters any more
robcast
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643
diff
changeset
|
1225 redisplay(data); |
| 643 | 1226 }; |
| 1227 | |
| 949 | 1228 /** add a mark where clicked. |
| 1229 * | |
| 1230 */ | |
| 647 | 1231 var setMark = function (data) { |
| 649 | 1232 var $scaler = data.$scaler; |
|
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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741
diff
changeset
|
1233 // unbind other handler |
| 917 | 1234 $scaler.off(".dlZoomDrag"); |
| 647 | 1235 // start event capturing |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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diff
changeset
|
1236 $scaler.one('mousedown.dlSetMark', function (evt) { |
| 647 | 1237 // event handler adding a new mark |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
changeset
|
1238 console.log("setmark at=", evt); |
|
672
7f7536a5b6d9
image transform works now under rotation!!! (at least for multiples of 90deg)
robcast
parents:
671
diff
changeset
|
1239 var mpos = geom.position(evt); |
| 647 | 1240 var pos = data.imgTrafo.invtransform(mpos); |
| 1241 data.marks.push(pos); | |
| 1242 redisplay(data); | |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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diff
changeset
|
1243 return false; |
| 647 | 1244 }); |
| 1245 }; | |
| 668 | 1246 |
| 949 | 1247 /** zoom to the area around two clicked points. |
| 1248 * | |
| 1249 */ | |
| 654 | 1250 var zoomArea = function(data) { |
| 1251 $elem = data.$elem; | |
| 1252 $scaler = data.$scaler; | |
| 1253 var pt1, pt2; | |
| 1254 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 1255 $elem.append($zoomDiv); | |
| 775 | 1256 // $zoomDiv.css(data.settings.zoomrectStyle); |
| 654 | 1257 var picRect = geom.rectangle($scaler); |
| 1258 // FIX ME: is there a way to query the border width from CSS info? | |
| 1259 // rect.x -= 2; // account for overlay borders | |
| 1260 // rect.y -= 2; | |
| 1261 | |
| 1262 var zoomStart = function (evt) { | |
| 1263 pt1 = geom.position(evt); | |
| 1264 // setup and show zoom div | |
| 738 | 1265 pt1.adjustDiv($zoomDiv); |
| 668 | 1266 $zoomDiv.width(0).height(0); |
| 654 | 1267 $zoomDiv.show(); |
| 1268 // register events | |
| 917 | 1269 $elem.on("mousemove.dlZoomArea", zoomMove); |
| 1270 $elem.on("mouseup.dlZoomArea", zoomEnd); | |
| 654 | 1271 return false; |
| 1272 }; | |
| 668 | 1273 |
| 741 | 1274 // mouse move handler |
| 1275 var zoomMove = function (evt) { | |
| 1276 pt2 = geom.position(evt); | |
| 1277 var rect = geom.rectangle(pt1, pt2); | |
| 1278 rect.clipTo(picRect); | |
| 1279 // update zoom div | |
| 1280 rect.adjustDiv($zoomDiv); | |
| 1281 return false; | |
| 1282 }; | |
|
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|
1283 |
| 654 | 1284 // mouseup handler: end moving |
| 1285 var zoomEnd = function (evt) { | |
| 1286 pt2 = geom.position(evt); | |
| 1287 // assume a click and continue if the area is too small | |
| 1288 var clickRect = geom.rectangle(pt1, pt2); | |
| 710 | 1289 if (clickRect.getArea() <= 5) return false; |
| 654 | 1290 // hide zoom div |
| 1291 $zoomDiv.remove(); | |
| 1292 // unregister events | |
| 917 | 1293 $elem.off("mousemove.dlZoomArea", zoomMove); |
| 1294 $elem.off("mouseup.dlZoomArea", zoomEnd); | |
| 654 | 1295 // clip and transform |
| 1296 clickRect.clipTo(picRect); | |
| 1297 var area = data.imgTrafo.invtransform(clickRect); | |
|
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|
1298 setZoomArea(data, area); |
| 654 | 1299 // zoomed is always fit |
| 1300 data.settings.ws = 1; | |
| 738 | 1301 delete data.dlOpts.fitwidth; |
| 1302 delete data.dlOpts.fitheight; | |
| 654 | 1303 redisplay(data); |
| 1304 return false; | |
| 1305 }; | |
| 668 | 1306 |
|
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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|
1307 // clear old handler (also ZoomDrag) |
| 917 | 1308 $scaler.off('.dlZoomArea'); |
| 1309 $scaler.off(".dlZoomDrag"); | |
| 1310 $elem.off('.dlZoomArea'); | |
| 654 | 1311 // bind start zoom handler |
| 738 | 1312 $scaler.one('mousedown.dlZoomArea', zoomStart); |
| 654 | 1313 }; |
| 647 | 1314 |
|
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|
1315 /** set preview background. |
|
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|
1316 * optional newZoomArea scales and moves background to preview. |
| 949 | 1317 */ |
|
950
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|
1318 var setPreviewBg = function(data, newZoomArea) { |
|
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|
1319 var $scaler = data.$scaler; |
|
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|
1320 var $img = data.$img; |
|
950
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|
1321 var imgTrafo = data.imgTrafo; |
|
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|
1322 var scalerPos = geom.position($scaler); |
|
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|
1323 var bgRect = null; |
|
746
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|
1324 // hide the scaler img, show background of div instead |
|
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|
1325 $img.css('visibility', 'hidden'); |
|
918
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|
1326 // use current image as first background |
|
746
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|
1327 var scalerCss = { |
|
950
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|
1328 'background-image' : 'url(' + $img.attr('src') + ')', |
|
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|
1329 'background-repeat' : 'no-repeat', |
|
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|
1330 'background-position' : '0px 0px', |
|
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|
1331 'opacity' : '0.7', |
|
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|
1332 'cursor' : 'move' |
|
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|
1333 }; |
|
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|
1334 if (newZoomArea != null) { |
|
953
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fixed birdseye region positioning after layout reflow.
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|
1335 // check if aspect ratio has changed |
|
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|
1336 if (newZoomArea.getAspect() !== data.zoomArea.getAspect()) { |
|
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|
1337 console.debug("aspect ratio changed!"); |
|
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|
1338 } |
|
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|
1339 // get transform for new zoomArea |
|
950
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|
1340 imgTrafo = getImgTrafo($img, newZoomArea, data.settings.rot, |
|
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|
1341 data.scalerFlags.hmir, data.scalerFlags.vmir, |
|
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|
1342 data.scaleMode, data); |
|
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|
1343 // for new background coordinates transform old zoomArea with new Transform |
|
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|
1344 bgRect = imgTrafo.transform(data.zoomArea); |
|
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|
1345 // correct offset because background is relative |
|
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|
1346 bgRect.addPosition(scalerPos.neg()); |
|
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|
1347 // position background |
|
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|
1348 scalerCss['background-position'] = Math.round(bgRect.x) + 'px '+ Math.round(bgRect.y) + 'px'; |
|
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|
1349 } |
|
746
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|
1350 if (data.hasBgSize) { |
|
950
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|
1351 // scale background using CSS3-background-size |
|
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|
1352 if (bgRect != null && (bgRect.height < data.settings.maxBgSize && bgRect.width < data.settings.maxBgSize)) { |
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|
1353 scalerCss[data.bgSizeName] = Math.round(bgRect.width) + 'px ' + Math.round(bgRect.height) + 'px'; |
| 944 | 1354 } else { |
| 1355 scalerCss[data.bgSizeName] = 'auto'; | |
| 1356 } | |
|
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|
1357 // additional full-size background using CSS3 |
|
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|
1358 fullRect = imgTrafo.transform(FULL_AREA); |
|
746
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|
1359 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) { |
|
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|
1360 // correct offset because background is relative |
|
751
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|
1361 fullRect.addPosition(scalerPos.neg()); |
| 795 | 1362 var url = getBgImgUrl(data); |
|
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|
1363 // add second background url, size and position |
|
918
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|
1364 scalerCss['background-image'] += ', url(' + url + ')'; |
|
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|
1365 scalerCss[data.bgSizeName] += ', ' + Math.round(fullRect.width) + 'px ' + Math.round(fullRect.height) + 'px'; |
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|
1366 scalerCss['background-position'] += ', ' + Math.round(fullRect.x) + 'px '+ Math.round(fullRect.y) + 'px'; |
|
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|
1367 } |
|
918
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|
1368 } |
|
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|
1369 $scaler.css(scalerCss); |
| 942 | 1370 data.hasPreviewBg = true; |
|
929
e881ab1c2f47
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|
1371 }; |
|
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|
1372 |
| 949 | 1373 /** setup handlers for dragging the zoomed image. |
| 1374 * | |
| 1375 */ | |
| 705 | 1376 var setupZoomDrag = function(data) { |
| 942 | 1377 var startPos, delta; |
| 733 | 1378 var $document = $(document); |
| 795 | 1379 var $data = $(data); |
| 705 | 1380 var $elem = data.$elem; |
| 1381 var $scaler = data.$scaler; | |
| 1382 var $img = data.$img; | |
| 710 | 1383 |
| 733 | 1384 // drag the image and load a new detail on mouse up |
| 705 | 1385 var dragStart = function (evt) { |
| 944 | 1386 // cancel if not left-click |
| 1387 if (evt.which != 1) return; | |
| 813 | 1388 console.debug("dragstart at=", evt); |
|
737
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
hertzhaft
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736
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changeset
|
1389 // don't start dragging if not zoomed |
|
7c93bdbb5153
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|
1390 if (isFullArea(data.zoomArea)) return false; |
| 813 | 1391 $elem.find(".overlay").hide(); // hide all overlays (marks/regions) |
| 733 | 1392 startPos = geom.position(evt); |
| 741 | 1393 delta = null; |
|
746
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|
1394 // set low res background immediately on mousedown |
|
950
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|
1395 setPreviewBg(data); |
| 917 | 1396 $document.on("mousemove.dlZoomDrag", dragMove); |
| 1397 $document.on("mouseup.dlZoomDrag", dragEnd); | |
|
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|
1398 return false; |
| 705 | 1399 }; |
|
745
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changeset
|
1400 |
| 733 | 1401 // mousemove handler: drag zoomed image |
| 705 | 1402 var dragMove = function (evt) { |
| 1403 var pos = geom.position(evt); | |
| 741 | 1404 delta = startPos.delta(pos); |
|
807
1b1728926534
geometry: overlapsRect() plus some comment clarifications
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799
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changeset
|
1405 // send message event with current zoom position |
|
745
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|
1406 var za = geom.rectangle($img); |
|
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|
1407 za.addPosition(delta.neg()); |
| 947 | 1408 // transform back |
| 1409 var newArea = data.imgTrafo.invtransform(za); | |
| 1410 $data.trigger('changeZoomArea', newArea); | |
| 705 | 1411 return false; |
| 1412 }; | |
| 710 | 1413 |
| 733 | 1414 // mouseup handler: reload zoomed image in new position |
| 705 | 1415 var dragEnd = function (evt) { |
| 739 | 1416 $scaler.css('cursor', 'auto'); |
| 917 | 1417 $document.off("mousemove.dlZoomDrag", dragMove); |
| 1418 $document.off("mouseup.dlZoomDrag", dragEnd); | |
| 733 | 1419 if (delta == null || delta.distance() < 2) { |
| 1420 // no movement | |
| 1421 $img.css('visibility', 'visible'); | |
| 741 | 1422 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
| 944 | 1423 data.hasPreviewBg = false; |
| 767 | 1424 // unhide marks |
| 1425 data.$elem.find('div.mark').show(); | |
| 813 | 1426 $(data).trigger('redisplay'); |
| 733 | 1427 return false; |
| 1428 } | |
| 1429 // get old zoom area (screen coordinates) | |
| 741 | 1430 var za = geom.rectangle($img); |
| 733 | 1431 // move |
| 741 | 1432 za.addPosition(delta.neg()); |
| 733 | 1433 // transform back |
| 1434 var newArea = data.imgTrafo.invtransform(za); | |
|
735
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improved some embedded buttons; fixed reset function
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733
diff
changeset
|
1435 data.zoomArea = FULL_AREA.fit(newArea); |
|
708
120ace160386
img reload works for fullscreen, but somehow not precise
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707
diff
changeset
|
1436 redisplay(data); |
| 705 | 1437 return false; |
| 1438 }; | |
|
735
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|
1439 |
| 733 | 1440 // clear old handler |
| 917 | 1441 $document.off(".dlZoomDrag"); |
| 1442 $scaler.off(".dlZoomDrag"); | |
|
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
changeset
|
1443 if (! isFullArea(data.zoomArea)) { |
|
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
changeset
|
1444 // set handler |
| 917 | 1445 $scaler.on("mousedown.dlZoomDrag", dragStart); |
|
742
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diff
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|
1446 } |
| 705 | 1447 }; |
| 1448 | |
|
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|
1449 /** set the zoom area. |
|
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|
1450 * also triggers "changeZoomArea" event. |
|
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|
1451 */ |
|
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|
1452 var setZoomArea = function(data, za) { |
|
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|
1453 $(data).trigger('changeZoomArea', za); |
|
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|
1454 data.oldZoomArea = data.zoomArea; |
|
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|
1455 data.zoomArea = za; |
|
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|
1456 }; |
|
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|
1457 |
| 949 | 1458 /** get image quality as a number (0..2). |
| 1459 * | |
| 1460 */ | |
| 703 | 1461 var getQuality = function (data) { |
| 1462 var flags = data.scalerFlags; | |
| 1463 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
| 1464 return parseInt(q[1], 10); | |
| 706 | 1465 }; |
| 703 | 1466 |
| 949 | 1467 /** set image quality as a number (0..2). |
| 1468 * | |
| 1469 */ | |
| 703 | 1470 var setQuality = function (data, qual) { |
| 1471 var flags = data.scalerFlags; | |
| 1472 // clear flags | |
| 1473 for (var i = 0; i < 3; ++i) { | |
| 1474 delete flags['q'+i]; | |
|
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|
1475 } |
| 703 | 1476 flags['q'+qual] = 'q'+qual; |
| 706 | 1477 }; |
| 710 | 1478 |
| 949 | 1479 /** get image scale mode (screen, pixel, size). |
| 1480 * | |
| 1481 */ | |
|
761
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added setScaleMode. no compensation for change in scaling yet.
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changeset
|
1482 var getScaleMode = function (data) { |
|
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|
1483 if (data.scalerFlags.clip != null) { |
|
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|
1484 return 'pixel'; |
|
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|
1485 } else if (data.scalerFlags.osize != null) { |
|
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diff
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|
1486 return 'size'; |
|
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|
1487 } |
|
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|
1488 // mo=fit is default |
|
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|
1489 return 'screen'; |
|
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|
1490 }; |
| 775 | 1491 |
| 949 | 1492 /** set image scale mode (screen, pixel, size). |
| 1493 * | |
| 1494 */ | |
|
761
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added setScaleMode. no compensation for change in scaling yet.
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1495 var setScaleMode = function (data, mode) { |
|
16778bd2de7c
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|
1496 delete data.scalerFlags.fit; |
|
16778bd2de7c
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|
1497 delete data.scalerFlags.clip; |
|
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added setScaleMode. no compensation for change in scaling yet.
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|
1498 delete data.scalerFlags.osize; |
|
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added setScaleMode. no compensation for change in scaling yet.
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|
1499 if (mode === 'pixel') { |
|
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|
1500 data.scalerFlags.clip = 'clip'; |
|
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|
1501 } else if (mode === 'size') { |
|
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|
1502 data.scalerFlags.osize = 'osize'; |
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|
1503 } |
|
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|
1504 // mo=fit is default |
|
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|
1505 }; |
| 775 | 1506 |
| 949 | 1507 /** sets a key to a value (relative values with +/- if relative=true). |
| 1508 * | |
| 1509 */ | |
| 650 | 1510 var setNumValue = function(settings, key, value) { |
| 716 | 1511 if (value == null) return null; |
| 949 | 1512 if ($.isNumeric(value)) { |
|
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|
1513 settings[key] = value; |
|
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|
1514 return value; |
|
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|
1515 } |
|
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|
1516 var sign = value[0]; |
| 650 | 1517 if (sign === '+' || sign === '-') { |
| 1518 if (settings[key] == null) { | |
|
651
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diff
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|
1519 // this isn't perfect but still... |
| 650 | 1520 settings[key] = 0; |
|
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|
1521 } |
| 650 | 1522 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
| 1523 } else { | |
| 1524 settings[key] = value; | |
|
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|
1525 } |
| 650 | 1526 return settings[key]; |
| 1527 }; | |
| 655 | 1528 |
| 949 | 1529 /** return width of border on $elem. |
| 1530 * assumes equal border width on all sides. | |
| 1531 */ | |
| 775 | 1532 var getBorderWidth = function($elem) { |
| 1533 var border = $elem.outerWidth() - $elem.width(); | |
| 1534 return border/2; | |
| 1535 }; | |
| 1536 | |
| 949 | 1537 /** return if the current zoomarea can be moved further. |
| 1538 * | |
| 1539 */ | |
| 878 | 1540 var canMove = function(data, movx, movy) { |
| 1541 var za = data.zoomArea; | |
| 1542 if (isFullArea(za)) return false; | |
| 1543 var x2 = za.x + za.width; | |
| 1544 var y2 = za.y + za.height; | |
| 949 | 1545 return (((movx < 0) && (za.x > 0)) |
| 878 | 1546 || ((movx > 0) && (x2 < 1.0)) |
| 1547 || ((movy < 0) && (za.y > 0)) | |
| 949 | 1548 || ((movy > 0) && (y2 < 1.0))); |
| 878 | 1549 }; |
| 1550 | |
| 949 | 1551 /** return if area is maximal. |
| 1552 * | |
| 1553 */ | |
| 795 | 1554 var isFullArea = function (area) { |
| 659 | 1555 return (area.width === 1.0) && (area.height === 1.0); |
| 655 | 1556 }; |
| 1557 | |
| 949 | 1558 /** return number with reduced precision. |
| 1559 * ("crop senseless precision") | |
| 1560 */ | |
| 631 | 1561 var cropFloat = function (x) { |
| 637 | 1562 return parseInt(10000 * x, 10) / 10000; |
| 631 | 1563 }; |
| 655 | 1564 |
| 949 | 1565 /** return string from number with reduced precision. |
| 1566 * | |
| 1567 */ | |
| 813 | 1568 var cropFloatStr = function (x) { |
| 1569 return cropFloat(x).toString(); | |
| 1570 }; | |
| 1571 | |
| 692 | 1572 // fallback for console.log calls |
| 1573 if (customConsole) { | |
| 1574 var logFunction = function(type) { | |
| 1575 return function(){ | |
| 1576 var $debug = $('#debug'); // debug div | |
| 1577 if (!$debug) return; | |
| 1578 var args = Array.prototype.slice.call(arguments); | |
| 1579 var argtext = args.join(' '); | |
| 1580 var $logDiv = $('<div/>'); | |
| 1581 $logDiv.addClass(type); | |
| 1582 $logDiv.text(argtext); | |
| 1583 $debug.append($logDiv); | |
| 1584 }; | |
| 1585 }; | |
| 1586 console.log = logFunction('_log'); | |
| 1587 console.debug = logFunction('_debug'); | |
| 1588 console.error = logFunction('_error'); | |
|
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|
1589 } |
| 692 | 1590 |
| 949 | 1591 /** functions to export to plugins. |
| 1592 */ | |
| 787 | 1593 fn = { |
| 791 | 1594 geometry : geom, |
| 787 | 1595 parseQueryString : parseQueryString, |
| 1596 getScalerUrl : getScalerUrl, | |
| 1597 getParamString : getParamString, | |
| 1598 getDigilibUrl : getDigilibUrl, | |
| 1599 unpackParams : unpackParams, | |
| 1600 packParams : packParams, | |
| 822 | 1601 packArea : packArea, |
| 1602 packMarks : packMarks, | |
| 1603 packScalerFlags : packScalerFlags, | |
| 795 | 1604 storeOptions : storeOptions, |
| 787 | 1605 redisplay : redisplay, |
| 1606 updateDisplay : updateDisplay, | |
| 791 | 1607 showDiv : showDiv, |
|
950
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|
1608 setPreviewBg : setPreviewBg, |
| 787 | 1609 getImgTrafo : getImgTrafo, |
| 1610 getQuality : getQuality, | |
| 1611 setQuality : setQuality, | |
| 1612 getScaleMode : getScaleMode, | |
| 1613 setScaleMode : setScaleMode, | |
| 878 | 1614 canMove : canMove, |
| 795 | 1615 isFullArea : isFullArea, |
| 813 | 1616 getBorderWidth : getBorderWidth, |
| 1617 cropFloat : cropFloat, | |
| 1618 cropFloatStr : cropFloatStr | |
| 787 | 1619 }; |
| 788 | 1620 |
|
799
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started to adapt regions plugin to new plugin mechanism
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diff
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|
1621 // hook digilib plugin into jquery |
| 785 | 1622 $.fn.digilib = function (action) { |
|
799
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diff
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|
1623 // plugin extension mechanism, called when the plugins' code is read |
| 786 | 1624 if (action === 'plugin') { |
| 1625 var plugin = arguments[1]; | |
| 1626 // each plugin needs a name | |
| 1627 if (plugin.name != null) { | |
| 1628 plugins[plugin.name] = plugin; | |
|
793
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documentation for new plugin api in jquery-digilib-plugin.txt.
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diff
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|
1629 // share common objects |
|
63c1b33e38b1
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diff
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|
1630 plugin.defaults = defaults; |
| 947 | 1631 plugin.buttons = buttons; |
|
793
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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diff
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|
1632 plugin.actions = actions; |
|
63c1b33e38b1
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diff
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|
1633 plugin.fn = fn; |
|
63c1b33e38b1
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diff
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|
1634 plugin.plugins = plugins; |
|
63c1b33e38b1
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diff
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|
1635 // and install |
|
63c1b33e38b1
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diff
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|
1636 if (typeof plugin.install === 'function') { |
|
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diff
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|
1637 plugin.install(plugin); |
|
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diff
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|
1638 } |
| 786 | 1639 } |
|
799
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diff
changeset
|
1640 // plugins will be initialised when action.init is called |
|
760
f0be4432f515
primitive plugin extension mechanism - unsure how useful this is
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diff
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|
1641 } else if (actions[action]) { |
|
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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650
diff
changeset
|
1642 // call action on this with the remaining arguments (inserting data as first argument) |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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650
diff
changeset
|
1643 var $elem = $(this); |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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diff
changeset
|
1644 var data = $elem.data('digilib'); |
|
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renamed 'actions' to 'buttons' and 'methods' to 'actions'
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650
diff
changeset
|
1645 var args = Array.prototype.slice.call(arguments, 1); |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
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650
diff
changeset
|
1646 args.unshift(data); |
|
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1647 return actions[action].apply(this, args); |
|
798
b07d1824ca2a
fullscreen mode works without reload on browsers supporting history.pushstate!
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parents:
797
diff
changeset
|
1648 } else if (typeof action === 'object' || !action) { |
|
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1649 // call init on the digilib jQuery object |
|
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
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650
diff
changeset
|
1650 return actions.init.apply(this, arguments); |
| 605 | 1651 } else { |
|
713
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diff
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|
1652 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
|
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|
1653 } |
| 605 | 1654 }; |
| 692 | 1655 |
| 604 | 1656 })(jQuery); |