Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 869:5396529b3f46 jquery
treat arrows as normal buttons; factor out createButton()
author | hertzhaft |
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date | Thu, 17 Mar 2011 12:20:36 +0100 |
parents | e5caceb1832b |
children | 5d811828347b |
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 /** |
597 | 21 * digilib jQuery plugin |
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22 **/ |
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23 |
760 | 24 /*jslint browser: true, debug: true, forin: true |
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25 */ |
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26 |
629 | 27 // fallback for console.log calls |
790 | 28 if (typeof console === 'undefined') { |
629 | 29 var console = { |
685 | 30 log : function(){}, |
31 debug : function(){}, | |
32 error : function(){} | |
33 }; | |
772 | 34 var customConsole = false; // set to true if debugging for MS IE |
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35 } |
597 | 36 |
37 (function($) { | |
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38 var buttons = { |
603 | 39 reference : { |
682 | 40 onclick : "reference", |
603 | 41 tooltip : "get a reference URL", |
758 | 42 icon : "reference.png" |
603 | 43 }, |
44 zoomin : { | |
636 | 45 onclick : ["zoomBy", 1.4], |
603 | 46 tooltip : "zoom in", |
758 | 47 icon : "zoom-in.png" |
603 | 48 }, |
49 zoomout : { | |
636 | 50 onclick : ["zoomBy", 0.7], |
603 | 51 tooltip : "zoom out", |
758 | 52 icon : "zoom-out.png" |
603 | 53 }, |
54 zoomarea : { | |
647 | 55 onclick : "zoomArea", |
603 | 56 tooltip : "zoom area", |
758 | 57 icon : "zoom-area.png" |
603 | 58 }, |
59 zoomfull : { | |
643 | 60 onclick : "zoomFull", |
603 | 61 tooltip : "view the whole image", |
758 | 62 icon : "zoom-full.png" |
603 | 63 }, |
64 pagewidth : { | |
643 | 65 onclick : ["zoomFull", "width"], |
603 | 66 tooltip : "page width", |
758 | 67 icon : "pagewidth.png" |
603 | 68 }, |
69 back : { | |
616 | 70 onclick : ["gotoPage", "-1"], |
603 | 71 tooltip : "goto previous image", |
758 | 72 icon : "back.png" |
603 | 73 }, |
74 fwd : { | |
616 | 75 onclick : ["gotoPage", "+1"], |
603 | 76 tooltip : "goto next image", |
758 | 77 icon : "fwd.png" |
603 | 78 }, |
79 page : { | |
709 | 80 onclick : "gotoPage", |
81 tooltip : "goto image number", | |
758 | 82 icon : "page.png" |
603 | 83 }, |
84 help : { | |
628 | 85 onclick : "showAboutDiv", |
603 | 86 tooltip : "about Digilib", |
758 | 87 icon : "help.png" |
603 | 88 }, |
89 reset : { | |
681 | 90 onclick : "reset", |
603 | 91 tooltip : "reset image", |
758 | 92 icon : "reset.png" |
603 | 93 }, |
94 mark : { | |
640 | 95 onclick : "setMark", |
603 | 96 tooltip : "set a mark", |
758 | 97 icon : "mark.png" |
603 | 98 }, |
99 delmark : { | |
643 | 100 onclick : "removeMark", |
603 | 101 tooltip : "delete the last mark", |
758 | 102 icon : "delmark.png" |
603 | 103 }, |
104 hmir : { | |
654 | 105 onclick : ["mirror", "h"], |
603 | 106 tooltip : "mirror horizontally", |
758 | 107 icon : "mirror-horizontal.png" |
603 | 108 }, |
109 vmir : { | |
654 | 110 onclick : ["mirror", "v"], |
603 | 111 tooltip : "mirror vertically", |
758 | 112 icon : "mirror-vertical.png" |
603 | 113 }, |
114 rot : { | |
656 | 115 onclick : "rotate", |
603 | 116 tooltip : "rotate image", |
758 | 117 icon : "rotate.png" |
603 | 118 }, |
119 brgt : { | |
656 | 120 onclick : "brightness", |
603 | 121 tooltip : "set brightness", |
758 | 122 icon : "brightness.png" |
603 | 123 }, |
124 cont : { | |
656 | 125 onclick : "contrast", |
603 | 126 tooltip : "set contrast", |
758 | 127 icon : "contrast.png" |
603 | 128 }, |
129 rgb : { | |
130 onclick : "javascript:setParamWin('rgb', '...')", | |
131 tooltip : "set rgb values", | |
758 | 132 icon : "rgb.png" |
603 | 133 }, |
134 quality : { | |
741 | 135 onclick : "setQuality", |
603 | 136 tooltip : "set image quality", |
758 | 137 icon : "quality.png" |
603 | 138 }, |
139 size : { | |
140 onclick : "javascript:toggleSizeMenu()", | |
141 tooltip : "set page size", | |
758 | 142 icon : "size.png" |
603 | 143 }, |
144 calibrationx : { | |
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145 onclick : "calibrate", |
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146 tooltip : "calibrate screen resolution", |
758 | 147 icon : "calibration-x.png" |
603 | 148 }, |
149 scale : { | |
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150 onclick : "setScaleMode", |
603 | 151 tooltip : "change image scale", |
758 | 152 icon : "original-size.png" |
603 | 153 }, |
692 | 154 toggleoptions : { |
741 | 155 onclick : "moreButtons", |
692 | 156 tooltip : "more options", |
758 | 157 icon : "options.png" |
692 | 158 }, |
683 | 159 moreoptions : { |
741 | 160 onclick : ["moreButtons", "+1"], |
683 | 161 tooltip : "more options", |
758 | 162 icon : "options.png" |
683 | 163 }, |
164 lessoptions : { | |
741 | 165 onclick : ["moreButtons", "-1"], |
683 | 166 tooltip : "less options", |
758 | 167 icon : "options.png" |
603 | 168 }, |
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169 up : { |
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170 onclick : ["moveZoomArea", 0, -1], |
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171 tooltip : "move up", |
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172 icon : "up.png" |
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173 }, |
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174 down : { |
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175 onclick : ["moveZoomArea", 0, 1], |
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176 tooltip : "move down", |
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177 icon : "down.png" |
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178 }, |
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179 left : { |
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180 onclick : ["moveZoomArea", -1, 0], |
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181 tooltip : "move left", |
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182 icon : "left.png" |
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183 }, |
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184 right : { |
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185 onclick : ["moveZoomArea", 1, 0], |
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186 tooltip : "move right", |
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187 icon : "right.png" |
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188 }, |
603 | 189 SEP : { |
758 | 190 icon : "sep.png" |
603 | 191 } |
192 }; | |
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193 |
598 | 194 var defaults = { |
609 | 195 // version of this script |
628 | 196 'version' : 'jquery.digilib.js 0.9', |
609 | 197 // logo url |
198 'logoUrl' : '../img/digilib-logo-text1.png', | |
628 | 199 // homepage url (behind logo) |
200 'homeUrl' : 'http://digilib.berlios.de', | |
737 | 201 // base URL to digilib viewer (for reference URLs) |
202 'digilibBaseUrl' : null, | |
603 | 203 // base URL to Scaler servlet |
645 | 204 'scalerBaseUrl' : null, |
603 | 205 // list of Scaler parameters |
620 | 206 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
207 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
208 // Scaler parameter defaults | |
636 | 209 'pn' : 1, |
620 | 210 'ww' : 1.0, |
211 'wh' : 1.0, | |
212 'wx' : 0.0, | |
213 'wy' : 0.0, | |
214 'ws' : 1.0, | |
636 | 215 'mo' : '', |
216 'rot' : 0, | |
217 'cont' : 0, | |
218 'brgt' : 0, | |
219 'rgbm' : '0/0/0', | |
220 'rgba' : '0/0/0', | |
221 'ddpi' : null, | |
222 'ddpix' : null, | |
223 'ddpiy' : null, | |
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224 // list of digilib parameters |
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225 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','ddpi','mk','clop'], |
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226 // digilib parameter defaults |
636 | 227 'mk' : '', |
643 | 228 'clop' : '', |
636 | 229 // mode of operation: |
230 // fullscreen = take parameters from page URL, keep state in page URL | |
231 // embedded = take parameters from Javascript options, keep state inside object | |
603 | 232 'interactionMode' : 'fullscreen', |
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233 // buttons |
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234 'buttons' : buttons, |
661 | 235 // defaults for digilib buttons |
658 | 236 'buttonSettings' : { |
237 'fullscreen' : { | |
661 | 238 // path to button images (must end with a slash) |
658 | 239 'imagePath' : 'img/fullscreen/', |
788 | 240 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","help","reset","toggleoptions"], |
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241 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","lessoptions"], |
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242 'arrowSet' : ["up", "down", "left", "right"], |
675 | 243 'buttonSets' : ['standardSet', 'specialSet'] |
658 | 244 }, |
245 'embedded' : { | |
246 'imagePath' : 'img/embedded/16/', | |
788 | 247 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","help","reset","toggleoptions"], |
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248 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","scale","lessoptions"], |
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249 'arrowSet' : ["up", "down", "left", "right"], |
675 | 250 'buttonSets' : ['standardSet', 'specialSet'] |
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251 }, |
690 | 252 }, |
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253 // arrow bar overlays for moving the zoomed area |
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254 'showZoomArrows' : true, |
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255 // zoom arrow bar minimal width (for small images) |
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256 'zoomArrowMinWidth' : 6, |
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257 // zoom arrow bar standard width |
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258 'zoomArrowWidth' : 32, |
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259 // by what percentage should the arrows move the zoomed area? |
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260 'zoomArrowMoveFactor' : 0.5, |
690 | 261 // number of visible button groups |
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262 'visibleButtonSets' : 1, |
609 | 263 // is the "about" window shown? |
734 | 264 'isAboutDivVisible' : false, |
788 | 265 // default size of background image for drag-scroll (same as Bird's Eye View image) |
266 'bgImgWidth' : 200, | |
267 'bgImgHeight' : 200, | |
268 // maximum width or height of background image for drag-scroll | |
771 | 269 'maxBgSize' : 10000, |
788 | 270 // parameters used by background image |
271 'bgImgParams' : ['fn','pn','dw','dh','mo','rot'], | |
849 | 272 // reserved space in full page display (default value accounts for vertical scrollbar) |
778 | 273 'scalerInset' : 10 |
603 | 274 }; |
648 | 275 |
779 | 276 // list of plugins |
277 var plugins = {}; | |
780 | 278 // object to export functions to plugins |
279 var fn; | |
779 | 280 // affine geometry plugin stub |
778 | 281 var geom; |
648 | 282 |
778 | 283 var FULL_AREA; |
648 | 284 |
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285 var actions = { |
661 | 286 // init: digilib initialization |
287 init : function(options) { | |
779 | 288 // import geometry classes |
289 if (plugins.geometry == null) { | |
290 $.error("jquery.digilib.geometry plugin not found!"); | |
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291 // last straw: old version |
778 | 292 geom = dlGeometry(); |
293 } else { | |
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294 // geometry plugin puts classes in the shared fn |
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295 geom = fn.geometry; |
778 | 296 } |
297 FULL_AREA = geom.rectangle(0, 0, 1, 1); | |
781 | 298 |
661 | 299 // settings for this digilib instance are merged from defaults and options |
300 var settings = $.extend({}, defaults, options); | |
301 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
302 var queryParams = {}; | |
303 if (isFullscreen) { | |
304 queryParams = parseQueryParams(); | |
305 // check scalerBaseUrl | |
306 if (settings.scalerBaseUrl == null) { | |
307 // try the host this came from | |
308 var h = window.location.host; | |
309 if (window.location.host) { | |
310 var url = window.location.href; | |
311 // assume the page lives in [webapp]/jquery/ | |
312 var pos = url.indexOf('jquery/'); | |
313 if (pos > 0) { | |
314 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
645 | 315 } |
316 } | |
629 | 317 } |
661 | 318 } |
319 return this.each(function() { | |
320 var $elem = $(this); | |
321 var data = $elem.data('digilib'); | |
681 | 322 var params, elemSettings; |
661 | 323 // if the plugin hasn't been initialized yet |
324 if (!data) { | |
325 // merge query parameters | |
326 if (isFullscreen) { | |
681 | 327 params = queryParams; |
661 | 328 } else { |
681 | 329 params = parseImgParams($elem); |
778 | 330 if ($.cookie) { |
720 | 331 // retrieve params from cookie |
332 var ck = "digilib-embed:fn:" + escape(params.fn) + ":pn:" + (params.pn || '1'); | |
778 | 333 var cs = $.cookie(ck); |
720 | 334 console.debug("get cookie=", ck, " value=", cs); |
335 if (cs) { | |
336 var cp = parseQueryString(cs); | |
721 | 337 // ignore fn and pn from cookie TODO: should we keep pn? |
338 delete cp.fn; | |
339 delete cp.pn; | |
778 | 340 $.extend(params, cp); |
720 | 341 } |
342 } | |
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343 } |
849 | 344 // setup $elem.data, needs "deep copy" because of nesting |
842 | 345 elemSettings = $.extend(true, {}, settings, params); |
690 | 346 data = { |
849 | 347 // let $(this) know about $(this) :-) |
661 | 348 $elem : $elem, |
849 | 349 // let $elem have its own copy of settings |
661 | 350 settings : elemSettings, |
849 | 351 // and of the URL query parameters |
781 | 352 queryParams : params, |
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353 // TODO: move plugins reference out of data |
781 | 354 plugins : plugins |
661 | 355 }; |
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356 // store in jQuery data element |
661 | 357 $elem.data('digilib', data); |
358 } | |
359 unpackParams(data); | |
737 | 360 // check if browser knows *background-size |
734 | 361 for (var bs in {'':1, '-moz-':1, '-webkit-':1, '-o-':1}) { |
362 if ($elem.css(bs+'background-size')) { | |
363 data.hasBgSize = true; | |
364 data.bgSizeName = bs+'background-size'; | |
365 break; | |
366 } | |
367 } | |
737 | 368 // check digilib base URL |
369 if (elemSettings.digilibBaseUrl == null) { | |
370 if (isFullscreen) { | |
371 // take current host | |
372 var url = window.location.toString(); | |
373 var pos = url.indexOf('?'); | |
374 elemSettings.digilibBaseUrl = url.substring(0, pos); | |
375 } else { | |
376 var url = elemSettings.scalerBaseUrl; | |
377 if (url) { | |
378 // build it from scaler URL | |
379 var bp = url.indexOf('/servlet/Scaler'); | |
758 | 380 elemSettings.digilibBaseUrl = url.substring(0, bp) + '/digilib.jsp'; |
737 | 381 } |
382 } | |
383 } | |
779 | 384 // initialise plugins |
780 | 385 for (n in plugins) { |
386 var p = plugins[n]; | |
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387 if (typeof p.init === 'function') { |
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388 p.init(data); |
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389 } |
779 | 390 } |
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391 // get image info from server if needed |
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392 if (data.scaleMode === 'pixel' || data.scaleMode === 'size') { |
790 | 393 $(data).bind('imageInfo', handleImageInfo); |
394 loadImageInfo(data); // triggers "imageInfo" on completion | |
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395 } |
772 | 396 // create buttons before scaler |
690 | 397 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { |
398 showButtons(data, true, i); | |
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399 } |
772 | 400 // create HTML structure for scaler, taking width of buttons div into account |
401 setupScalerDiv(data); | |
758 | 402 highlightButtons(data); |
661 | 403 // about window creation - TODO: could be deferred? restrict to only one item? |
404 setupAboutDiv(data); | |
849 | 405 // arrow overlays for moving zoomed detail |
406 setupZoomArrows(data); | |
788 | 407 // send setup event |
408 $(data).trigger('setup'); | |
661 | 409 }); |
410 }, | |
411 | |
412 // destroy: clean up digilib | |
413 destroy : function(data) { | |
414 return this.each(function(){ | |
415 var $elem = $(this); | |
416 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
417 data.digilib.remove(); | |
418 $elem.removeData('digilib'); | |
419 }); | |
420 }, | |
421 | |
422 // show or hide the 'about' window | |
423 showAboutDiv : function(data, show) { | |
758 | 424 var on = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); |
425 data.settings.isAboutDivVisible = on; | |
426 highlightButtons(data, 'help', on); | |
661 | 427 }, |
648 | 428 |
661 | 429 // goto given page nr (+/-: relative) |
430 gotoPage : function (data, pageNr) { | |
431 var settings = data.settings; | |
432 var oldpn = settings.pn; | |
709 | 433 if (pageNr == null) { |
434 pageNr = window.prompt("Goto page number", oldpn); | |
435 } | |
661 | 436 var pn = setNumValue(settings, "pn", pageNr); |
437 if (pn == null) return false; // nothing happened | |
438 if (pn < 1) { | |
439 alert("no such page (page number too low)"); | |
440 settings.pn = oldpn; | |
441 return false; | |
442 } | |
760 | 443 // TODO: how do we get pt? |
661 | 444 if (settings.pt) { |
445 if (pn > settings.pt) { | |
446 alert("no such page (page number too high)"); | |
616 | 447 settings.pn = oldpn; |
448 return false; | |
627 | 449 } |
661 | 450 } |
451 // reset mk and others(?) | |
452 data.marks = []; | |
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453 data.zoomArea = FULL_AREA; |
661 | 454 // then reload |
455 redisplay(data); | |
456 }, | |
647 | 457 |
661 | 458 // zoom by a given factor |
459 zoomBy : function (data, factor) { | |
460 zoomBy(data, factor); | |
461 }, | |
640 | 462 |
760 | 463 // zoom to area (or interactive) |
464 zoomArea : function (data, area) { | |
465 var settings = data.settings; | |
466 if (area == null) { | |
467 // interactively | |
468 zoomArea(data); | |
469 } else { | |
470 data.zoomArea = geom.rectangle(area); | |
471 redisplay(data); | |
472 } | |
661 | 473 }, |
643 | 474 |
661 | 475 // zoom out to full page |
476 zoomFull : function (data, mode) { | |
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477 data.zoomArea = FULL_AREA; |
661 | 478 if (mode === 'width') { |
479 data.dlOpts.fitwidth = 1; | |
480 delete data.dlOpts.fitheight; | |
481 } else if (mode === 'height') { | |
482 data.dlOpts.fitheight = 1; | |
483 delete data.dlOpts.fitwidth; | |
484 } else { | |
485 delete data.dlOpts.fitwidth; | |
486 delete data.dlOpts.fitheight; | |
487 } | |
488 redisplay(data); | |
489 }, | |
490 | |
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491 // move zoomed area |
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492 moveZoomArea : function (data, dx, dy) { |
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493 var za = data.zoomArea; |
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494 var factor = data.settings.zoomArrowMoveFactor; |
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495 var deltaX = dx * factor * za.width; |
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496 var deltaY = dy * factor * za.height; |
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497 za.addPosition(geom.position(deltaX, deltaY)); |
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498 data.zoomArea = FULL_AREA.fit(za); |
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499 redisplay(data); |
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500 }, |
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501 |
661 | 502 // set a mark by clicking (or giving a position) |
503 setMark : function (data, mpos) { | |
504 if (mpos == null) { | |
505 // interactive | |
506 setMark(data); | |
507 } else { | |
508 // use position | |
509 data.marks.push(pos); | |
656 | 510 redisplay(data); |
597 | 511 } |
661 | 512 }, |
513 | |
514 // remove the last mark | |
515 removeMark : function (data) { | |
516 data.marks.pop(); | |
517 redisplay(data); | |
518 }, | |
519 | |
520 // mirror the image | |
521 mirror : function (data, mode) { | |
522 var flags = data.scalerFlags; | |
523 if (mode === 'h') { | |
524 if (flags.hmir) { | |
525 delete flags.hmir; | |
526 } else { | |
527 flags.hmir = 1; | |
528 } | |
529 } else { | |
530 if (flags.vmir) { | |
531 delete flags.vmir; | |
532 } else { | |
533 flags.vmir = 1; | |
534 } | |
535 } | |
536 redisplay(data); | |
537 }, | |
643 | 538 |
661 | 539 // rotate the image |
540 rotate : function (data, angle) { | |
541 var rot = data.settings.rot; | |
542 if (angle == null) { | |
543 angle = window.prompt("Rotation angle:", rot); | |
544 } | |
545 data.settings.rot = angle; | |
546 redisplay(data); | |
547 }, | |
548 | |
549 // change brightness | |
550 brightness : function (data, factor) { | |
551 var brgt = data.settings.brgt; | |
552 if (factor == null) { | |
553 factor = window.prompt("Brightness (-255..255)", brgt); | |
554 } | |
555 data.settings.brgt = factor; | |
556 redisplay(data); | |
557 }, | |
558 | |
559 // change contrast | |
560 contrast : function (data, factor) { | |
561 var cont = data.settings.cont; | |
562 if (factor == null) { | |
563 factor = window.prompt("Contrast (-8, 8)", cont); | |
564 } | |
565 data.settings.cont = factor; | |
566 redisplay(data); | |
681 | 567 }, |
703 | 568 |
683 | 569 // display more (or less) button sets |
741 | 570 moreButtons : function (data, more) { |
689 | 571 var settings = data.settings; |
692 | 572 if (more == null) { |
696 | 573 // toggle more or less (only works for 2 sets) |
692 | 574 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
575 if (settings.visibleButtonSets >= maxbtns) { | |
576 more = '-1'; | |
577 } else { | |
578 more = '+1'; | |
579 } | |
580 } | |
683 | 581 if (more === '-1') { |
582 // remove set | |
690 | 583 var setIdx = settings.visibleButtonSets - 1; |
584 if (showButtons(data, false, setIdx, true)) { | |
585 settings.visibleButtonSets--; | |
586 } | |
683 | 587 } else { |
588 // add set | |
690 | 589 var setIdx = settings.visibleButtonSets; |
590 if (showButtons(data, true, setIdx, true)) { | |
591 settings.visibleButtonSets++; | |
683 | 592 } |
593 } | |
716 | 594 // persist setting |
595 storeOptions(data); | |
684 | 596 }, |
681 | 597 |
696 | 598 // reset image parameters to defaults |
681 | 599 reset : function (data) { |
600 var settings = data.settings; | |
601 var paramNames = settings.digilibParamNames; | |
602 var params = data.queryParams; | |
603 // delete all digilib parameters | |
604 for (var i = 0; i < paramNames.length; i++) { | |
605 var paramName = paramNames[i]; | |
606 delete settings[paramName]; | |
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607 } |
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608 settings.fn = params.fn || ''; // no default defined |
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609 settings.pn = params.pn || defaults.pn; |
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610 settings.dw = params.dw; |
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611 settings.dh = params.dh; |
702 | 612 settings.isBirdDivVisible = false; |
613 settings.visibleButtonSets = 1; | |
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614 // resets zoomArea, marks, scalerflags |
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615 data.zoomArea = FULL_AREA; |
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616 data.marks = []; |
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617 data.scalerFlags = {}; |
705 | 618 delete data.dlOpts.fitwidth; |
619 delete data.dlOpts.fitheight; | |
681 | 620 redisplay(data); |
682 | 621 }, |
622 | |
696 | 623 // presents a reference url (returns value if noprompt) |
624 reference : function (data, noprompt) { | |
682 | 625 var settings = data.settings; |
737 | 626 var url = getDigilibUrl(data); |
696 | 627 if (noprompt == null) { |
628 window.prompt("URL reference to the current view", url); | |
629 } | |
630 return url; | |
631 }, | |
703 | 632 |
696 | 633 // set image quality |
741 | 634 setQuality : function (data, qual) { |
696 | 635 var oldq = getQuality(data); |
636 if (qual == null) { | |
637 qual = window.prompt("Image quality (0..2)", oldq); | |
638 } | |
639 qual = parseInt(qual, 10); | |
640 if (qual >= 0 && qual <= 2) { | |
641 setQuality(data, qual); | |
642 redisplay(data); | |
643 } | |
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644 }, |
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645 |
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646 // calibrate (only faking) |
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647 calibrate : function (data, res) { |
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648 var oldRes = data.settings.ddpi; |
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649 if (res == null) { |
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650 res = window.prompt("Display resolution (dpi)", oldRes); |
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651 } |
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652 if (res != null) { |
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653 data.settings.ddpi = res; |
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654 redisplay(data); |
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655 } |
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656 }, |
768 | 657 |
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658 // set image scale mode |
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659 setScaleMode : function (data, mode) { |
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660 var oldM = getScaleMode(data); |
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661 if (mode == null) { |
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662 mode = window.prompt("Image scale mode (screen, pixel, size)", oldM); |
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663 } |
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664 if (mode != null) { |
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665 setScaleMode(data, mode); |
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666 data.scaleMode = mode; |
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667 redisplay(data); |
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668 } |
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669 } |
768 | 670 |
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671 // end of actions |
598 | 672 }; |
597 | 673 |
601 | 674 // returns parameters from page url |
600 | 675 var parseQueryParams = function() { |
629 | 676 return parseQueryString(window.location.search.slice(1)); |
677 }; | |
648 | 678 |
629 | 679 // returns parameters from embedded img-element |
600 | 680 var parseImgParams = function($elem) { |
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681 var src = $elem.find('img').first().attr('src'); |
703 | 682 if (!src) return null; |
600 | 683 var pos = src.indexOf('?'); |
684 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
685 var scalerUrl = src.substring(0, pos); | |
620 | 686 var params = parseQueryString(query); |
687 params.scalerBaseUrl = scalerUrl; | |
688 return params; | |
629 | 689 }; |
600 | 690 |
601 | 691 // parses query parameter string into parameter object |
600 | 692 var parseQueryString = function(query) { |
694 | 693 var params = {}; |
694 if (query == null) return params; | |
600 | 695 var pairs = query.split("&"); |
629 | 696 //var keys = []; |
600 | 697 for (var i = 0; i < pairs.length; i++) { |
698 var pair = pairs[i].split("="); | |
699 if (pair.length === 2) { | |
620 | 700 params[pair[0]] = pair[1]; |
629 | 701 //keys.push(pair[0]); |
627 | 702 } |
629 | 703 } |
620 | 704 return params; |
629 | 705 }; |
661 | 706 |
636 | 707 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
708 var getParamString = function (settings, keys, defaults) { | |
608 | 709 var paramString = ''; |
643 | 710 var nx = false; |
608 | 711 for (i = 0; i < keys.length; ++i) { |
712 var key = keys[i]; | |
656 | 713 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
608 | 714 // first param gets no '&' |
643 | 715 if (nx) { |
716 paramString += '&'; | |
717 } else { | |
718 nx = true; | |
719 } | |
608 | 720 // add parm=val |
721 paramString += key + '=' + settings[key]; | |
636 | 722 } |
608 | 723 } |
724 return paramString; | |
624 | 725 }; |
726 | |
629 | 727 // returns URL and query string for Scaler |
728 var getScalerUrl = function (data) { | |
734 | 729 packParams(data); |
646 | 730 var settings = data.settings; |
645 | 731 if (settings.scalerBaseUrl == null) { |
732 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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733 } |
629 | 734 var keys = settings.scalerParamNames; |
636 | 735 var queryString = getParamString(settings, keys, defaults); |
629 | 736 var url = settings.scalerBaseUrl + '?' + queryString; |
737 return url; | |
738 }; | |
739 | |
734 | 740 // returns URL for bird's eye view image |
788 | 741 var getBgImgUrl = function (data, moreParams) { |
734 | 742 var settings = data.settings; |
788 | 743 var bgOptions = { |
744 dw : settings.bgImgWidth, | |
745 dh : settings.bgImgHeight | |
734 | 746 }; |
788 | 747 var bgSettings = $.extend({}, settings, bgOptions); |
748 // filter scaler flags | |
749 if (bgSettings.mo != null) { | |
750 var mo = ''; | |
751 if (data.scalerFlags.hmir != null) { | |
752 mo += 'hmir,'; | |
760 | 753 } |
788 | 754 if (data.scalerFlags.vmir != null) { |
755 mo += 'vmir'; | |
756 } | |
757 bgSettings.mo = mo; | |
736 | 758 } |
788 | 759 var params = getParamString(bgSettings, settings.bgImgParams, defaults); |
736 | 760 var url = settings.scalerBaseUrl + '?' + params; |
734 | 761 return url; |
762 }; | |
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763 |
629 | 764 // returns URL and query string for current digilib |
637
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765 var getDigilibUrl = function (data) { |
636 | 766 packParams(data); |
629 | 767 var settings = data.settings; |
637
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768 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
737 | 769 return settings.digilibBaseUrl + '?' + queryString; |
629 | 770 }; |
771 | |
790 | 772 // loads image information from digilib server via HTTP |
773 var loadImageInfo = function (data) { | |
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774 var settings = data.settings; |
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775 var p = settings.scalerBaseUrl.indexOf('/servlet/Scaler'); |
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776 var url = settings.scalerBaseUrl.substring(0, p) + '/ImgInfo-json.jsp'; |
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777 url += '?' + getParamString(settings, ['fn', 'pn'], defaults); |
760 | 778 // TODO: better error handling |
778 | 779 $.getJSON(url, function (json) { |
747
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780 console.debug("got json data=", json); |
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781 data.imgInfo = json; |
790 | 782 // send event |
783 $(data).trigger('imageInfo', [json]); | |
747
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784 }); |
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785 }; |
768 | 786 |
648 | 787 // processes some parameters into objects and stuff |
624 | 788 var unpackParams = function (data) { |
789 var settings = data.settings; | |
629 | 790 // zoom area |
624 | 791 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
636 | 792 data.zoomArea = zoomArea; |
629 | 793 // marks |
624 | 794 var marks = []; |
643 | 795 if (settings.mk) { |
796 var mk = settings.mk; | |
797 if (mk.indexOf(";") >= 0) { | |
798 var pa = mk.split(";"); // old format with ";" | |
799 } else { | |
800 var pa = mk.split(","); // new format | |
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801 } |
643 | 802 for (var i = 0; i < pa.length ; i++) { |
803 var pos = pa[i].split("/"); | |
804 if (pos.length > 1) { | |
805 marks.push(geom.position(pos[0], pos[1])); | |
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806 } |
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807 } |
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808 } |
636 | 809 data.marks = marks; |
643 | 810 // mo (Scaler flags) |
811 var flags = {}; | |
812 if (settings.mo) { | |
813 var pa = settings.mo.split(","); | |
814 for (var i = 0; i < pa.length ; i++) { | |
815 flags[pa[i]] = pa[i]; | |
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816 } |
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817 } |
643 | 818 data.scalerFlags = flags; |
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819 data.scaleMode = getScaleMode(data); |
716 | 820 retrieveOptions(data); |
648 | 821 }; |
822 | |
815 | 823 // put area into parameters |
824 var packArea = function (settings, area) { | |
825 if (!area) return; | |
826 // zoom area | |
827 settings.wx = cropFloat(area.x); | |
828 settings.wy = cropFloat(area.y); | |
829 settings.ww = cropFloat(area.width); | |
830 settings.wh = cropFloat(area.height); | |
831 }; | |
832 | |
833 // put marks into parameters | |
834 var packMarks = function (settings, marks) { | |
835 if (!marks) return; | |
836 settings.mk = ''; | |
837 for (var i = 0; i < marks.length; i++) { | |
838 if (i) { | |
839 settings.mk += ','; | |
840 } | |
841 settings.mk += | |
842 cropFloatStr(marks[i].x) + '/' + | |
843 cropFloatStr(marks[i].y); | |
844 } | |
845 }; | |
846 | |
847 // pack scaler flags into parameters | |
848 var packScalerFlags = function (settings, flags) { | |
849 if (!flags) return; | |
850 var mo = ''; | |
851 for (var f in flags) { | |
852 if (mo) { | |
853 mo += ','; | |
854 } | |
855 mo += f; | |
856 } | |
857 settings.mo = mo; | |
858 }; | |
859 | |
624 | 860 // put objects back into parameters |
861 var packParams = function (data) { | |
862 var settings = data.settings; | |
815 | 863 packArea(settings, data.zoomArea); |
864 packMarks(settings, data.marks); | |
865 packScalerFlags(settings, data.scalerFlags); | |
866 // store user interface options in cookie | |
716 | 867 storeOptions(data); |
702 | 868 }; |
681 | 869 |
716 | 870 var storeOptions = function (data) { |
694 | 871 // save digilib options in cookie |
702 | 872 var settings = data.settings; |
873 if (data.dlOpts) { | |
874 // save digilib settings in options | |
875 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
876 data.dlOpts.buttons = settings.visibleButtonSets; | |
877 var clop = ''; | |
878 for (var o in data.dlOpts) { | |
879 if (clop) { | |
880 clop += '&'; | |
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881 } |
702 | 882 clop += o + '=' + data.dlOpts[o]; |
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883 } |
778 | 884 if ($.cookie) { |
702 | 885 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; |
886 console.debug("set cookie=", ck, " value=", clop); | |
778 | 887 $.cookie(ck, clop); |
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888 } |
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889 } |
778 | 890 if (settings.interactionMode !== 'fullscreen' && $.cookie) { |
720 | 891 // store normal parameters in cookie for embedded mode |
892 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
893 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
894 console.debug("set cookie=", ck, " value=", qs); | |
778 | 895 $.cookie(ck, qs); |
720 | 896 } |
624 | 897 }; |
648 | 898 |
716 | 899 var retrieveOptions = function (data) { |
702 | 900 // clop (digilib options) |
901 var opts = {}; | |
902 var settings = data.settings; | |
778 | 903 if ($.cookie) { |
702 | 904 // read from cookie |
905 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
778 | 906 var cp = $.cookie(ck); |
702 | 907 console.debug("get cookie=", ck, " value=", cp); |
908 // in query string format | |
909 opts = parseQueryString(cp); | |
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910 } |
702 | 911 data.dlOpts = opts; |
912 // birdview option | |
913 if (opts.birdview != null) { | |
914 settings.isBirdDivVisible = opts.birdview === '1'; | |
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915 } |
702 | 916 // visible button sets |
917 if (opts.buttons != null) { | |
918 settings.visibleButtonSets = opts.buttons; | |
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919 } |
704 | 920 }; |
702 | 921 |
615 | 922 // (re)load the img from a new scaler URL |
637
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923 var redisplay = function (data) { |
629 | 924 var settings = data.settings; |
925 if (settings.interactionMode === 'fullscreen') { | |
926 // update location.href (browser URL) in fullscreen mode | |
637
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927 var url = getDigilibUrl(data); |
629 | 928 var history = window.history; |
791
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929 if (typeof history.pushState === 'function') { |
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930 console.debug("faking reload to "+url); |
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931 // change url without reloading (stateObj, title, url) |
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932 history.pushState({}, '', url); |
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933 // change img src |
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934 var imgurl = getScalerUrl(data); |
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935 data.$img.attr('src', imgurl); |
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936 highlightButtons(data); |
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937 // send event |
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938 $(data).trigger('redisplay'); |
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939 } else { |
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940 // reload window |
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941 window.location = url; |
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942 } |
629 | 943 } else { |
944 // embedded mode -- just change img src | |
945 var url = getScalerUrl(data); | |
946 data.$img.attr('src', url); | |
758 | 947 highlightButtons(data); |
788 | 948 // send event |
949 $(data).trigger('redisplay'); | |
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950 } |
615 | 951 }; |
952 | |
760 | 953 // update display (overlays etc.) |
954 var updateDisplay = function (data) { | |
955 updateImgTrafo(data); | |
956 renderMarks(data); | |
957 setupZoomDrag(data); | |
855 | 958 renderZoomArrows(data); |
777 | 959 // send event |
960 $(data).trigger('update'); | |
760 | 961 }; |
768 | 962 |
655 | 963 // returns maximum size for scaler img in fullscreen mode |
771 | 964 var getFullscreenImgSize = function (data) { |
655 | 965 var $win = $(window); |
966 var winH = $win.height(); | |
772 | 967 var winW = $win.width(); |
968 var $body = $('body'); | |
773 | 969 // include standard body margins |
970 var borderW = $body.outerWidth(true) - $body.width(); | |
971 var borderH = $body.outerHeight(true) - $body.height(); | |
772 | 972 // get width of first button div |
973 var buttonsW = 0; | |
974 if (data.$buttonSets) { | |
975 buttonsW = data.$buttonSets[0].outerWidth(); | |
976 } | |
977 // account for left/right border, body margins and additional requirements | |
773 | 978 var calcW = winW - borderW - buttonsW - data.settings.scalerInset; |
979 var calcH = winH - borderH; | |
980 console.debug(winW, winH, 'winW:', $win.width(), 'border:', borderW, 'buttonsW:', buttonsW, 'calc:', calcW); | |
981 return geom.size(calcW, calcH); | |
655 | 982 }; |
983 | |
601 | 984 // creates HTML structure for digilib in elem |
620 | 985 var setupScalerDiv = function (data) { |
986 var settings = data.settings; | |
640 | 987 var $elem = data.$elem; |
718 | 988 $elem.addClass('digilib'); |
721 | 989 var $img; |
990 var scalerUrl; | |
601 | 991 if (settings.interactionMode === 'fullscreen') { |
721 | 992 // fullscreen |
718 | 993 $elem.addClass('dl_fullscreen'); |
771 | 994 var imgSize = getFullscreenImgSize(data); |
643 | 995 // fitwidth/height omits destination height/width |
721 | 996 if (data.dlOpts.fitheight == null) { |
643 | 997 settings.dw = imgSize.width; |
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998 } |
721 | 999 if (data.dlOpts.fitwidth == null) { |
643 | 1000 settings.dh = imgSize.height; |
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1001 } |
679 | 1002 scalerUrl = getScalerUrl(data); |
721 | 1003 $img = $('<img/>'); |
602 | 1004 } else { |
721 | 1005 // embedded mode -- try to keep img tag |
718 | 1006 $elem.addClass('dl_embedded'); |
721 | 1007 scalerUrl = getScalerUrl(data); |
616 | 1008 $img = $elem.find('img'); |
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1009 if ($img.length > 0) { |
863
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1010 var oldUrl = $img.attr('src'); |
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1011 // keep img attributes from html |
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1012 var title = $img.attr('title'); |
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1013 var alt = $img.attr('alt'); |
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1014 if (oldUrl === scalerUrl) { |
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1015 console.debug("img detach:", $img); |
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1016 $img.detach(); |
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1017 } else { |
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1018 $img = $('<img/>'); |
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1019 $img.attr("title", title); |
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1020 $img.attr("alt", alt); |
721 | 1021 } |
606
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1022 } else { |
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1023 $img = $('<img/>'); |
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1024 } |
601 | 1025 } |
815 | 1026 // create new inner html, keeping buttons and content marked with "keep" class |
1027 $elem.contents(":not(.keep)").remove(); | |
606
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1028 var $scaler = $('<div class="scaler"/>'); |
772 | 1029 // scaler should be the first child element? |
1030 $elem.prepend($scaler); | |
606
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1031 $scaler.append($img); |
615 | 1032 $img.addClass('pic'); |
642 | 1033 data.$scaler = $scaler; |
629 | 1034 data.$img = $img; |
680 | 1035 // setup image load handler before setting the src attribute (IE bug) |
1036 $img.load(scalerImgLoadedHandler(data)); | |
760 | 1037 $img.error(function () {console.error("error loading scaler image");}); |
680 | 1038 $img.attr('src', scalerUrl); |
601 | 1039 }; |
608 | 1040 |
869
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1041 // creates HTML structure for a single button |
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1042 var createButton = function (data, $div, buttonName) { |
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1043 var $elem = data.$elem; |
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1044 var settings = data.settings; |
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1045 var mode = settings.interactionMode; |
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1046 var imagePath = settings.buttonSettings[mode].imagePath; |
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1047 var buttonConfig = settings.buttons[buttonName]; |
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1048 // button properties |
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1049 var action = buttonConfig.onclick; |
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1050 var tooltip = buttonConfig.tooltip; |
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1051 var icon = imagePath + buttonConfig.icon; |
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1052 // construct the button html |
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1053 var $button = $('<div class="button"></div>'); |
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1054 var $a = $('<a/>'); |
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1055 var $img = $('<img class="button"/>'); |
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1056 $div.append($button); |
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1057 $button.append($a); |
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1058 $a.append($img); |
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1059 // add attributes and bindings |
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1060 $button.attr('title', tooltip); |
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1061 $button.addClass('button-' + buttonName); |
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1062 $img.attr('src', icon); |
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1063 // create handler for the buttons |
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1064 $a.bind('click.digilib', (function () { |
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1065 // we create a new closure to capture the value of action |
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1066 if ($.isArray(action)) { |
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1067 // the handler function calls digilib with action and parameters |
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1068 return function (evt) { |
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1069 console.debug('click action=', action, ' evt=', evt); |
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1070 $elem.digilib.apply($elem, action); |
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1071 return false; |
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|
1072 }; |
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1073 } else { |
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1074 // the handler function calls digilib with action |
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1075 return function (evt) { |
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1076 console.debug('click action=', action, ' evt=', evt); |
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1077 $elem.digilib(action); |
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1078 return false; |
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|
1079 }; |
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|
1080 } |
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|
1081 })()); |
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|
1082 }; |
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1083 |
603 | 1084 // creates HTML structure for buttons in elem |
690 | 1085 var createButtons = function (data, buttonSetIdx) { |
640 | 1086 var $elem = data.$elem; |
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1087 var settings = data.settings; |
658 | 1088 var mode = settings.interactionMode; |
665
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1089 var buttonSettings = settings.buttonSettings[mode]; |
675 | 1090 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
683 | 1091 if (buttonGroup == null) { |
1092 // no buttons here | |
1093 return; | |
1094 } | |
815 | 1095 // button divs are marked with class "keep" |
1096 var $buttonsDiv = $('<div class="keep buttons"/>'); | |
675 | 1097 var buttonNames = buttonSettings[buttonGroup]; |
1098 for (var i = 0; i < buttonNames.length; i++) { | |
1099 var buttonName = buttonNames[i]; | |
869
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1100 createButton(data, $buttonsDiv, buttonName); |
683 | 1101 } |
655 | 1102 // make buttons div scroll if too large for window |
1103 if ($buttonsDiv.height() > $(window).height() - 10) { | |
1104 $buttonsDiv.css('position', 'absolute'); | |
1105 } | |
690 | 1106 // buttons hidden at first |
1107 $buttonsDiv.hide(); | |
1108 $elem.append($buttonsDiv); | |
675 | 1109 if (data.$buttonSets == null) { |
690 | 1110 // first button set |
675 | 1111 data.$buttonSets = [$buttonsDiv]; |
1112 } else { | |
683 | 1113 $elem.append($buttonsDiv); |
675 | 1114 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
1115 } | |
605 | 1116 return $buttonsDiv; |
603 | 1117 }; |
608 | 1118 |
849 | 1119 // creates arrow overlays for moving the zoomed area |
1120 var setupZoomArrows = function (data) { | |
1121 var $elem = data.$elem; | |
1122 var settings = data.settings; | |
1123 var show = settings.zoomArrows; | |
1124 console.log('zoom arrows:', show); | |
1125 if (!show) return; | |
855 | 1126 data.$arrows = {}; |
1127 var $arrows = data.$arrows; | |
1128 var info = settings.zoomArrowsInfo; | |
1129 $.each(['up','down','left','right'], function(i, s){ | |
1130 var src = info.imagePath + info[s]; | |
1131 var $div = $('<div class="keep arrow arrow-' + s + '"/>'); | |
1132 var $img = $('<img src="' + src + '"/>'); | |
1133 $div.attr('title', s); | |
1134 $img.attr('alt', s); | |
1135 $div.append($img); | |
1136 $elem.append($div); | |
1137 $arrows[s] = $div; | |
1138 }); | |
1139 $arrows.up.bind('click.digilib', function(event) { | |
1140 //za.addPosition(delta.neg()); | |
1141 // transform back | |
1142 // var newArea = data.imgTrafo.invtransform(za); | |
1143 // data.zoomArea = FULL_AREA.fit(newArea); | |
1144 redisplay(data); | |
1145 }); | |
1146 $arrows.down.bind('click.digilib', function(event) { | |
1147 redisplay(data); | |
1148 }); | |
1149 $arrows.left.bind('click.digilib', function(event) { | |
1150 redisplay(data); | |
1151 }); | |
1152 $arrows.right.bind('click.digilib', function(event) { | |
1153 redisplay(data); | |
1154 }); | |
849 | 1155 }; |
1156 | |
855 | 1157 // size and show arrow overlays, called after scaler img is loaded |
1158 var renderZoomArrows = function (data) { | |
864 | 1159 if (!data.settings.zoomArrows) return; |
1160 if (isFullArea(data)) return; | |
855 | 1161 var $arrows = data.$arrows; |
1162 var r = FULL_AREA.copy(); | |
1163 r.height = 0.05; | |
1164 data.imgTrafo.transform(r).adjustDiv($arrows.up); | |
1165 r.y = 0.95; | |
1166 data.imgTrafo.transform(r).adjustDiv($arrows.down); | |
1167 r = FULL_AREA.copy(); | |
1168 r.width = 0.05; | |
1169 data.imgTrafo.transform(r).adjustDiv($arrows.left); | |
1170 r.x = 0.95; | |
1171 data.imgTrafo.transform(r).adjustDiv($arrows.right); | |
1172 }; | |
1173 | |
1174 | |
618 | 1175 // creates HTML structure for the about view in elem |
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1176 var setupAboutDiv = function (data) { |
640 | 1177 var $elem = data.$elem; |
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1178 var settings = data.settings; |
618 | 1179 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
609 | 1180 var $header = $('<p>Digilib Graphic Viewer</p>'); |
1181 var $link = $('<a/>'); | |
1182 var $logo = $('<img class="logo" title="digilib"/>'); | |
1183 var $content = $('<p/>'); | |
1184 $elem.append($aboutDiv); | |
1185 $aboutDiv.append($header); | |
1186 $aboutDiv.append($link); | |
1187 $aboutDiv.append($content); | |
1188 $link.append($logo); | |
1189 $logo.attr('src', settings.logoUrl); | |
628 | 1190 $link.attr('href', settings.homeUrl); |
609 | 1191 $content.text('Version: ' + settings.version); |
768 | 1192 data.$aboutDiv = $aboutDiv; |
628 | 1193 // click hides |
768 | 1194 $aboutDiv.bind('click.digilib', function () { |
1195 actions['showAboutDiv'](data, false); | |
703 | 1196 }); |
627 | 1197 }; |
1198 | |
628 | 1199 // shows some window e.g. 'about' (toggle visibility if show is null) |
1200 var showDiv = function (isVisible, $div, show) { | |
638 | 1201 if (show == null) { |
628 | 1202 // toggle visibility |
1203 isVisible = !isVisible; | |
1204 } else { | |
1205 // set visibility | |
1206 isVisible = show; | |
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|
1207 } |
628 | 1208 if (isVisible) { |
1209 $div.fadeIn(); | |
1210 } else { | |
1211 $div.fadeOut(); | |
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1212 } |
628 | 1213 return isVisible; |
627 | 1214 }; |
609 | 1215 |
690 | 1216 // display more (or less) button sets |
1217 var showButtons = function (data, more, setIdx, animated) { | |
704 | 1218 var atime = animated ? 'fast': 0; |
690 | 1219 if (more) { |
1220 // add set | |
1221 var $otherSets = data.$elem.find('div.buttons:visible'); | |
1222 var $set; | |
1223 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
1224 // set exists | |
1225 $set = data.$buttonSets[setIdx]; | |
1226 } else { | |
1227 $set = createButtons(data, setIdx); | |
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|
1228 } |
690 | 1229 if ($set == null) return false; |
758 | 1230 // include border in calculation |
1231 var btnWidth = $set.outerWidth(); | |
772 | 1232 // console.debug("btnWidth", btnWidth); |
690 | 1233 // move remaining sets left and show new set |
704 | 1234 if ($otherSets.length > 0) { |
1235 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
1236 function () {$set.show();}); | |
690 | 1237 } else { |
1238 $set.show(); | |
704 | 1239 } |
690 | 1240 } else { |
1241 // remove set | |
1242 var $set = data.$buttonSets[setIdx]; | |
1243 if ($set == null) return false; | |
772 | 1244 var btnWidth = $set.outerWidth(); |
690 | 1245 // hide last set |
1246 $set.hide(); | |
1247 // take remaining sets and move right | |
1248 var $otherSets = data.$elem.find('div.buttons:visible'); | |
704 | 1249 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
1250 } | |
690 | 1251 return true; |
1252 }; | |
1253 | |
758 | 1254 // check for buttons to highlight |
1255 var highlightButtons = function (data, name, on) { | |
1256 var $buttons = data.$elem.find('div.buttons:visible'); // include hidden? | |
1257 // add a class for highlighted button | |
1258 var highlight = function (name, on) { | |
1259 var $button = $buttons.find('div.button-' + name); | |
1260 if (on) { | |
1261 $button.addClass('button-on'); | |
1262 } else { | |
1263 $button.removeClass('button-on'); | |
1264 } | |
1265 }; | |
1266 if (name != null) { | |
1267 return highlight(name, on); | |
1268 } | |
1269 var flags = data.scalerFlags; | |
1270 var settings = data.settings; | |
1271 highlight('rot', settings.rot); | |
1272 highlight('brgt', settings.brgt); | |
1273 highlight('cont', settings.cont); | |
1274 highlight('bird', settings.isBirdDivVisible); | |
1275 highlight('help', settings.isAboutDivVisible); | |
1276 highlight('hmir', flags.hmir); | |
1277 highlight('vmir', flags.vmir); | |
759 | 1278 highlight('quality', flags.q1 || flags.q2); |
758 | 1279 highlight('zoomin', ! isFullArea(data.zoomArea)); |
1280 }; | |
768 | 1281 |
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1282 // create Transform from area and $img |
765
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|
1283 var getImgTrafo = function ($img, area, rot, hmir, vmir, mode, data) { |
651
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|
1284 var picrect = geom.rectangle($img); |
756
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1285 if (mode != null) { |
765
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|
1286 var imgInfo = data.imgInfo; |
756
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|
1287 if (mode === 'pixel') { |
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1288 // scaler mo=clip - image area size does not come from ww, wh |
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|
1289 if (imgInfo != null) { |
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|
1290 area.width = picrect.width / imgInfo.width; |
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|
1291 area.height = picrect.height / imgInfo.height; |
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|
1292 } else { |
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|
1293 console.error("No image info for pixel mode!"); |
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|
1294 } |
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|
1295 } |
765
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|
1296 if (mode === 'size') { |
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|
1297 // scaler mo=osize - image area size does not come from ww, wh |
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|
1298 if (imgInfo != null) { |
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|
1299 var ddpi = parseFloat(data.settings.ddpi); |
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|
1300 area.width = (picrect.width / ddpi) / (imgInfo.width / imgInfo.dpi_x); |
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1301 area.height = (picrect.height / ddpi) / (imgInfo.height / imgInfo.dpi_y); |
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|
1302 } else { |
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|
1303 console.error("No image info for original size mode!"); |
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|
1304 } |
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|
1305 } |
756
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|
1306 } |
651
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|
1307 var trafo = geom.transform(); |
668 | 1308 // move zoom area offset to center |
651
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|
1309 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
668 | 1310 // scale zoom area size to [1,1] |
651
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1311 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
668 | 1312 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
1313 if (rot || hmir || vmir) { | |
1314 // move [0.5,0.5] to center | |
1315 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
1316 if (hmir) { | |
1317 // mirror about center | |
1318 trafo.concat(trafo.getMirror('y')); | |
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1319 } |
668 | 1320 if (vmir) { |
1321 // mirror about center | |
1322 trafo.concat(trafo.getMirror('x')); | |
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|
1323 } |
668 | 1324 if (rot) { |
1325 // rotate around center | |
1326 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
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|
1327 } |
668 | 1328 // move back |
1329 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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|
1330 } |
657
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|
1331 // scale to screen position and size |
651
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1332 trafo.concat(trafo.getScale(picrect)); |
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1333 trafo.concat(trafo.getTranslation(picrect)); |
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1334 return trafo; |
648 | 1335 }; |
671
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|
1336 |
760 | 1337 // update scaler image transform |
1338 var updateImgTrafo = function (data) { | |
1339 var $img = data.$img; | |
1340 if ($img != null && $img.get(0).complete) { | |
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|
1341 // create Transform from current zoomArea and image size |
668 | 1342 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
756
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1343 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir, |
765
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|
1344 data.scaleMode, data); |
753
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|
1345 // console.debug("imgTrafo=", data.imgTrafo); |
760 | 1346 } |
1347 }; | |
768 | 1348 |
790 | 1349 // returns handler for load event of scaler img |
760 | 1350 var scalerImgLoadedHandler = function (data) { |
1351 return function () { | |
1352 var $img = $(this); | |
1353 console.debug("scaler img loaded=",$img); | |
1354 var $scaler = data.$scaler; | |
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|
1355 var imgRect = geom.rectangle($img); |
726 | 1356 // adjust scaler div size |
731 | 1357 imgRect.adjustDiv($scaler); |
708 | 1358 // show image in case it was hidden (for example in zoomDrag) |
726 | 1359 $img.css('visibility', 'visible'); |
734 | 1360 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
760 | 1361 // update display (render marks, etc.) |
1362 updateDisplay(data); | |
651
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1363 }; |
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1364 }; |
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1365 |
790 | 1366 // handler for imageInfo loaded event |
1367 var handleImageInfo = function (evt, json) { | |
1368 var data = this; | |
1369 updateDisplay(data); | |
1370 }; | |
806 | 1371 |
626 | 1372 // place marks on the image |
1373 var renderMarks = function (data) { | |
760 | 1374 if (data.$img == null || data.imgTrafo == null) return; |
843
76c23870ac0b
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diff
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|
1375 console.debug("renderMarks: img=",data.$img," imgtrafo=",data.imgTrafo); |
640 | 1376 var $elem = data.$elem; |
636 | 1377 var marks = data.marks; |
735
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|
1378 // clear marks |
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diff
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|
1379 $elem.find('div.mark').remove(); |
626 | 1380 for (var i = 0; i < marks.length; i++) { |
1381 var mark = marks[i]; | |
636 | 1382 if (data.zoomArea.containsPosition(mark)) { |
626 | 1383 var mpos = data.imgTrafo.transform(mark); |
844 | 1384 console.debug("renderMarks: pos=",mpos); |
626 | 1385 // create mark |
806 | 1386 var html = '<div class="mark overlay">'+(i+1)+'</div>'; |
626 | 1387 var $mark = $(html); |
843
76c23870ac0b
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diff
changeset
|
1388 $mark.attr("id", "digilib-mark-"+(i+1)); |
626 | 1389 $elem.append($mark); |
735
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|
1390 mpos.adjustDiv($mark); |
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|
1391 } |
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changeset
|
1392 } |
626 | 1393 }; |
648 | 1394 |
640 | 1395 // zooms by the given factor |
636 | 1396 var zoomBy = function(data, factor) { |
1397 var area = data.zoomArea; | |
1398 var newarea = area.copy(); | |
1399 // scale | |
1400 newarea.width /= factor; | |
1401 newarea.height /= factor; | |
1402 // and recenter | |
1403 newarea.x -= 0.5 * (newarea.width - area.width); | |
1404 newarea.y -= 0.5 * (newarea.height - area.height); | |
728
53584f90f66b
improved some embedded buttons; fixed reset function
hertzhaft
parents:
726
diff
changeset
|
1405 newarea = FULL_AREA.fit(newarea); |
636 | 1406 data.zoomArea = newarea; |
637
71cc855e2e4b
reload doesn't take list of changed parameters any more
robcast
parents:
636
diff
changeset
|
1407 redisplay(data); |
636 | 1408 }; |
1409 | |
640 | 1410 // add a mark where clicked |
1411 var setMark = function (data) { | |
642 | 1412 var $scaler = data.$scaler; |
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1413 // unbind other handler |
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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734
diff
changeset
|
1414 $scaler.unbind(".dlZoomDrag"); |
640 | 1415 // start event capturing |
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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734
diff
changeset
|
1416 $scaler.one('mousedown.dlSetMark', function (evt) { |
640 | 1417 // event handler adding a new mark |
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1418 console.log("setmark at=", evt); |
665
0d3d9517e448
image transform works now under rotation!!! (at least for multiples of 90deg)
robcast
parents:
664
diff
changeset
|
1419 var mpos = geom.position(evt); |
640 | 1420 var pos = data.imgTrafo.invtransform(mpos); |
1421 data.marks.push(pos); | |
1422 redisplay(data); | |
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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diff
changeset
|
1423 return false; |
640 | 1424 }); |
1425 }; | |
661 | 1426 |
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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diff
changeset
|
1427 // zoom to the area around two clicked points |
647 | 1428 var zoomArea = function(data) { |
1429 $elem = data.$elem; | |
1430 $scaler = data.$scaler; | |
1431 var pt1, pt2; | |
1432 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
1433 $elem.append($zoomDiv); | |
768 | 1434 // $zoomDiv.css(data.settings.zoomrectStyle); |
647 | 1435 var picRect = geom.rectangle($scaler); |
1436 // FIX ME: is there a way to query the border width from CSS info? | |
1437 // rect.x -= 2; // account for overlay borders | |
1438 // rect.y -= 2; | |
1439 | |
1440 var zoomStart = function (evt) { | |
1441 pt1 = geom.position(evt); | |
1442 // setup and show zoom div | |
731 | 1443 pt1.adjustDiv($zoomDiv); |
661 | 1444 $zoomDiv.width(0).height(0); |
647 | 1445 $zoomDiv.show(); |
1446 // register events | |
731 | 1447 $elem.bind("mousemove.dlZoomArea", zoomMove); |
1448 $elem.bind("mouseup.dlZoomArea", zoomEnd); | |
647 | 1449 return false; |
1450 }; | |
661 | 1451 |
734 | 1452 // mouse move handler |
1453 var zoomMove = function (evt) { | |
1454 pt2 = geom.position(evt); | |
1455 var rect = geom.rectangle(pt1, pt2); | |
1456 rect.clipTo(picRect); | |
1457 // update zoom div | |
1458 rect.adjustDiv($zoomDiv); | |
1459 return false; | |
1460 }; | |
738
bd283b2cdbbc
move birdview zoom indicator along with zoom drag
hertzhaft
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737
diff
changeset
|
1461 |
647 | 1462 // mouseup handler: end moving |
1463 var zoomEnd = function (evt) { | |
1464 pt2 = geom.position(evt); | |
1465 // assume a click and continue if the area is too small | |
1466 var clickRect = geom.rectangle(pt1, pt2); | |
703 | 1467 if (clickRect.getArea() <= 5) return false; |
647 | 1468 // hide zoom div |
1469 $zoomDiv.remove(); | |
1470 // unregister events | |
731 | 1471 $elem.unbind("mousemove.dlZoomArea", zoomMove); |
1472 $elem.unbind("mouseup.dlZoomArea", zoomEnd); | |
647 | 1473 // clip and transform |
1474 clickRect.clipTo(picRect); | |
1475 var area = data.imgTrafo.invtransform(clickRect); | |
1476 data.zoomArea = area; | |
1477 // zoomed is always fit | |
1478 data.settings.ws = 1; | |
731 | 1479 delete data.dlOpts.fitwidth; |
1480 delete data.dlOpts.fitheight; | |
647 | 1481 redisplay(data); |
1482 return false; | |
1483 }; | |
661 | 1484 |
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1485 // clear old handler (also ZoomDrag) |
731 | 1486 $scaler.unbind('.dlZoomArea'); |
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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diff
changeset
|
1487 $scaler.unbind(".dlZoomDrag"); |
731 | 1488 $elem.unbind('.dlZoomArea'); |
647 | 1489 // bind start zoom handler |
731 | 1490 $scaler.one('mousedown.dlZoomArea', zoomStart); |
647 | 1491 }; |
640 | 1492 |
739
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1493 // set zoom background |
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
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diff
changeset
|
1494 var setZoomBG = function(data) { |
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
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diff
changeset
|
1495 var $scaler = data.$scaler; |
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
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diff
changeset
|
1496 var $img = data.$img; |
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1497 var fullRect = null; |
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
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diff
changeset
|
1498 // hide the scaler img, show background of div instead |
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
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diff
changeset
|
1499 $img.css('visibility', 'hidden'); |
58fcf8d8649f
move zoom-drag background along with birdview indicator
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diff
changeset
|
1500 var scalerCss = { |
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1501 'background-image' : 'url(' + $img.attr('src') + ')', |
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1502 'background-repeat' : 'no-repeat', |
58fcf8d8649f
move zoom-drag background along with birdview indicator
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diff
changeset
|
1503 'background-position' : 'left top', |
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move zoom-drag background along with birdview indicator
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changeset
|
1504 'opacity' : '0.5', |
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move zoom-drag background along with birdview indicator
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changeset
|
1505 'cursor' : 'move' |
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move zoom-drag background along with birdview indicator
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changeset
|
1506 }; |
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1507 if (data.hasBgSize) { |
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1508 // full-size background using CSS3-background-size |
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|
1509 fullRect = data.imgTrafo.transform(FULL_AREA); |
58fcf8d8649f
move zoom-drag background along with birdview indicator
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diff
changeset
|
1510 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) { |
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move zoom-drag background along with birdview indicator
hertzhaft
parents:
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diff
changeset
|
1511 // correct offset because background is relative |
744
78ed5b49259d
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
741
diff
changeset
|
1512 var scalerPos = geom.position($scaler); |
78ed5b49259d
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
741
diff
changeset
|
1513 fullRect.addPosition(scalerPos.neg()); |
788 | 1514 var url = getBgImgUrl(data); |
739
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move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1515 scalerCss['background-image'] = 'url(' + url + ')'; |
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move zoom-drag background along with birdview indicator
hertzhaft
parents:
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diff
changeset
|
1516 scalerCss[data.bgSizeName] = fullRect.width + 'px ' + fullRect.height + 'px'; |
58fcf8d8649f
move zoom-drag background along with birdview indicator
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738
diff
changeset
|
1517 scalerCss['background-position'] = fullRect.x + 'px '+ fullRect.y + 'px'; |
58fcf8d8649f
move zoom-drag background along with birdview indicator
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parents:
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diff
changeset
|
1518 } else { |
58fcf8d8649f
move zoom-drag background along with birdview indicator
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diff
changeset
|
1519 // too big |
58fcf8d8649f
move zoom-drag background along with birdview indicator
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diff
changeset
|
1520 fullRect = null; |
58fcf8d8649f
move zoom-drag background along with birdview indicator
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diff
changeset
|
1521 } |
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1522 } |
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
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diff
changeset
|
1523 $scaler.css(scalerCss); |
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
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738
diff
changeset
|
1524 // isBgReady = true; |
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
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diff
changeset
|
1525 return fullRect; |
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
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diff
changeset
|
1526 }; |
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move zoom-drag background along with birdview indicator
hertzhaft
parents:
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diff
changeset
|
1527 |
731 | 1528 // setup handlers for dragging the zoomed image |
698 | 1529 var setupZoomDrag = function(data) { |
739
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1530 var startPos, delta, fullRect; |
726 | 1531 var $document = $(document); |
788 | 1532 var $data = $(data); |
698 | 1533 var $elem = data.$elem; |
1534 var $scaler = data.$scaler; | |
1535 var $img = data.$img; | |
703 | 1536 |
726 | 1537 // drag the image and load a new detail on mouse up |
698 | 1538 var dragStart = function (evt) { |
806 | 1539 console.debug("dragstart at=", evt); |
730
98a405711289
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
729
diff
changeset
|
1540 // don't start dragging if not zoomed |
98a405711289
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
729
diff
changeset
|
1541 if (isFullArea(data.zoomArea)) return false; |
806 | 1542 $elem.find(".overlay").hide(); // hide all overlays (marks/regions) |
726 | 1543 startPos = geom.position(evt); |
734 | 1544 delta = null; |
739
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1545 // set low res background immediately on mousedown |
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
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diff
changeset
|
1546 fullRect = setZoomBG(data); |
726 | 1547 $document.bind("mousemove.dlZoomDrag", dragMove); |
1548 $document.bind("mouseup.dlZoomDrag", dragEnd); | |
706
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1549 return false; |
698 | 1550 }; |
738
bd283b2cdbbc
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
737
diff
changeset
|
1551 |
726 | 1552 // mousemove handler: drag zoomed image |
698 | 1553 var dragMove = function (evt) { |
1554 var pos = geom.position(evt); | |
734 | 1555 delta = startPos.delta(pos); |
1556 if (fullRect) { | |
1557 var bgPos = fullRect.getPosition().add(delta); | |
1558 } else { | |
1559 var bgPos = delta; | |
1560 } | |
698 | 1561 // move the background image to the new position |
708 | 1562 $scaler.css({ |
734 | 1563 'background-position' : bgPos.x + "px " + bgPos.y + "px" |
698 | 1564 }); |
800
ac1d6b056a6f
geometry: overlapsRect() plus some comment clarifications
hertzhaft
parents:
792
diff
changeset
|
1565 // send message event with current zoom position |
738
bd283b2cdbbc
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
737
diff
changeset
|
1566 var za = geom.rectangle($img); |
bd283b2cdbbc
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
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diff
changeset
|
1567 za.addPosition(delta.neg()); |
788 | 1568 $data.trigger('dragZoom', [za]); |
1569 //TODO: setBirdZoom(data, za); | |
698 | 1570 return false; |
1571 }; | |
703 | 1572 |
726 | 1573 // mouseup handler: reload zoomed image in new position |
698 | 1574 var dragEnd = function (evt) { |
732 | 1575 $scaler.css('cursor', 'auto'); |
726 | 1576 $document.unbind("mousemove.dlZoomDrag", dragMove); |
1577 $document.unbind("mouseup.dlZoomDrag", dragEnd); | |
1578 if (delta == null || delta.distance() < 2) { | |
1579 // no movement | |
1580 $img.css('visibility', 'visible'); | |
734 | 1581 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
760 | 1582 // unhide marks |
1583 data.$elem.find('div.mark').show(); | |
806 | 1584 $(data).trigger('redisplay'); |
726 | 1585 return false; |
1586 } | |
1587 // get old zoom area (screen coordinates) | |
734 | 1588 var za = geom.rectangle($img); |
726 | 1589 // move |
734 | 1590 za.addPosition(delta.neg()); |
726 | 1591 // transform back |
1592 var newArea = data.imgTrafo.invtransform(za); | |
728
53584f90f66b
improved some embedded buttons; fixed reset function
hertzhaft
parents:
726
diff
changeset
|
1593 data.zoomArea = FULL_AREA.fit(newArea); |
701
2660b733a1e7
img reload works for fullscreen, but somehow not precise
hertzhaft
parents:
700
diff
changeset
|
1594 redisplay(data); |
698 | 1595 return false; |
1596 }; | |
728
53584f90f66b
improved some embedded buttons; fixed reset function
hertzhaft
parents:
726
diff
changeset
|
1597 |
726 | 1598 // clear old handler |
1599 $document.unbind(".dlZoomDrag"); | |
734 | 1600 $scaler.unbind(".dlZoomDrag"); |
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1601 if (! isFullArea(data.zoomArea)) { |
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1602 // set handler |
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1603 $scaler.bind("mousedown.dlZoomDrag", dragStart); |
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1604 } |
698 | 1605 }; |
1606 | |
696 | 1607 // get image quality as a number (0..2) |
1608 var getQuality = function (data) { | |
1609 var flags = data.scalerFlags; | |
1610 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
1611 return parseInt(q[1], 10); | |
699 | 1612 }; |
696 | 1613 |
1614 // set image quality as a number (0..2) | |
1615 var setQuality = function (data, qual) { | |
1616 var flags = data.scalerFlags; | |
1617 // clear flags | |
1618 for (var i = 0; i < 3; ++i) { | |
1619 delete flags['q'+i]; | |
706
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1620 } |
696 | 1621 flags['q'+qual] = 'q'+qual; |
699 | 1622 }; |
703 | 1623 |
754
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1624 // get image scale mode (screen, pixel, size) |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1625 var getScaleMode = function (data) { |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1626 if (data.scalerFlags.clip != null) { |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1627 return 'pixel'; |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1628 } else if (data.scalerFlags.osize != null) { |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1629 return 'size'; |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1630 } |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1631 // mo=fit is default |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1632 return 'screen'; |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1633 }; |
768 | 1634 |
754
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1635 // set image scale mode (screen, pixel, size) |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1636 var setScaleMode = function (data, mode) { |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1637 delete data.scalerFlags.fit; |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1638 delete data.scalerFlags.clip; |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1639 delete data.scalerFlags.osize; |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1640 if (mode === 'pixel') { |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1641 data.scalerFlags.clip = 'clip'; |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1642 } else if (mode === 'size') { |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1643 data.scalerFlags.osize = 'osize'; |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1644 } |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1645 // mo=fit is default |
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1646 }; |
768 | 1647 |
754
17539f6838b6
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
753
diff
changeset
|
1648 // sets a key to a value (relative values with +/- if relative=true) |
643 | 1649 var setNumValue = function(settings, key, value) { |
709 | 1650 if (value == null) return null; |
706
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1651 if (isNumber(value)) { |
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1652 settings[key] = value; |
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1653 return value; |
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1654 } |
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1655 var sign = value[0]; |
643 | 1656 if (sign === '+' || sign === '-') { |
1657 if (settings[key] == null) { | |
644
bffc7d8c3641
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
643
diff
changeset
|
1658 // this isn't perfect but still... |
643 | 1659 settings[key] = 0; |
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1660 } |
643 | 1661 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
1662 } else { | |
1663 settings[key] = value; | |
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1664 } |
643 | 1665 return settings[key]; |
1666 }; | |
648 | 1667 |
768 | 1668 // auxiliary function, assuming equal border width on all sides |
1669 var getBorderWidth = function($elem) { | |
1670 var border = $elem.outerWidth() - $elem.width(); | |
1671 return border/2; | |
1672 }; | |
1673 | |
648 | 1674 // auxiliary function (from old dllib.js) |
788 | 1675 var isFullArea = function (area) { |
652 | 1676 return (area.width === 1.0) && (area.height === 1.0); |
648 | 1677 }; |
1678 | |
634 | 1679 // auxiliary function (from Douglas Crockford, A.10) |
788 | 1680 var isNumber = function (value) { |
703 | 1681 return typeof value === 'number' && isFinite(value); |
634 | 1682 }; |
648 | 1683 |
624 | 1684 // auxiliary function to crop senseless precision |
1685 var cropFloat = function (x) { | |
630 | 1686 return parseInt(10000 * x, 10) / 10000; |
624 | 1687 }; |
648 | 1688 |
806 | 1689 // idem, string version |
1690 var cropFloatStr = function (x) { | |
1691 return cropFloat(x).toString(); | |
1692 }; | |
1693 | |
685 | 1694 // fallback for console.log calls |
1695 if (customConsole) { | |
1696 var logFunction = function(type) { | |
1697 return function(){ | |
1698 var $debug = $('#debug'); // debug div | |
1699 if (!$debug) return; | |
1700 var args = Array.prototype.slice.call(arguments); | |
1701 var argtext = args.join(' '); | |
1702 var $logDiv = $('<div/>'); | |
1703 $logDiv.addClass(type); | |
1704 $logDiv.text(argtext); | |
1705 $debug.append($logDiv); | |
1706 }; | |
1707 }; | |
1708 console.log = logFunction('_log'); | |
1709 console.debug = logFunction('_debug'); | |
1710 console.error = logFunction('_error'); | |
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1711 } |
685 | 1712 |
780 | 1713 // functions to export to plugins |
1714 fn = { | |
784 | 1715 geometry : geom, |
780 | 1716 parseQueryString : parseQueryString, |
1717 getScalerUrl : getScalerUrl, | |
1718 getParamString : getParamString, | |
1719 getDigilibUrl : getDigilibUrl, | |
1720 unpackParams : unpackParams, | |
1721 packParams : packParams, | |
815 | 1722 packArea : packArea, |
1723 packMarks : packMarks, | |
1724 packScalerFlags : packScalerFlags, | |
788 | 1725 storeOptions : storeOptions, |
780 | 1726 redisplay : redisplay, |
1727 updateDisplay : updateDisplay, | |
788 | 1728 highlightButtons : highlightButtons, |
784 | 1729 showDiv : showDiv, |
788 | 1730 setZoomBG : setZoomBG, |
780 | 1731 getImgTrafo : getImgTrafo, |
1732 getQuality : getQuality, | |
1733 setQuality : setQuality, | |
1734 getScaleMode : getScaleMode, | |
1735 setScaleMode : setScaleMode, | |
788 | 1736 isFullArea : isFullArea, |
806 | 1737 isNumber : isNumber, |
1738 getBorderWidth : getBorderWidth, | |
1739 cropFloat : cropFloat, | |
1740 cropFloatStr : cropFloatStr | |
780 | 1741 }; |
781 | 1742 |
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1743 // hook digilib plugin into jquery |
778 | 1744 $.fn.digilib = function (action) { |
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1745 // plugin extension mechanism, called when the plugins' code is read |
779 | 1746 if (action === 'plugin') { |
1747 var plugin = arguments[1]; | |
1748 // each plugin needs a name | |
1749 if (plugin.name != null) { | |
1750 plugins[plugin.name] = plugin; | |
786
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1751 // share common objects |
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1752 plugin.defaults = defaults; |
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1753 plugin.buttons = buttons; |
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1754 plugin.actions = actions; |
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1755 plugin.fn = fn; |
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1756 plugin.plugins = plugins; |
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1757 // and install |
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1758 if (typeof plugin.install === 'function') { |
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1759 plugin.install(plugin); |
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1760 } |
779 | 1761 } |
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1762 // plugins will be initialised when action.init is called |
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1763 } else if (actions[action]) { |
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1764 // call action on this with the remaining arguments (inserting data as first argument) |
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1765 var $elem = $(this); |
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1766 var data = $elem.data('digilib'); |
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1767 var args = Array.prototype.slice.call(arguments, 1); |
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1768 args.unshift(data); |
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1769 return actions[action].apply(this, args); |
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1770 } else if (typeof action === 'object' || !action) { |
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1771 // call init on the digilib jQuery object |
644
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1772 return actions.init.apply(this, arguments); |
598 | 1773 } else { |
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1774 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
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1775 } |
598 | 1776 }; |
685 | 1777 |
597 | 1778 })(jQuery); |