Mercurial > hg > digilib-old
annotate webapp/src/main/webapp/jquery/jquery.digilib.js @ 945:d90eb52966be
"preview" doesn't work for zoomArea.
author | robcast |
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date | Wed, 28 Dec 2011 22:10:31 +0100 |
parents | 3916303b8f17 |
children | aa5a978a5311 |
rev | line source |
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1 /* Copyright (c) 2011 Martin Raspe, Robert Casties |
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2 |
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3 This program is free software: you can redistribute it and/or modify |
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4 it under the terms of the GNU Lesser General Public License as published by |
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5 the Free Software Foundation, either version 2 of the License, or |
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6 (at your option) any later version. |
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7 |
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8 This program is distributed in the hope that it will be useful, |
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9 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 GNU Lesser General Public License for more details. |
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12 |
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13 You should have received a copy of the GNU Lesser General Public License |
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14 along with this program. If not, see <http://www.gnu.org/licenses/>. |
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15 |
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16 Authors: |
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17 Martin Raspe, Robert Casties, 11.1.2011 |
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18 */ |
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19 |
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20 /** |
604 | 21 * digilib jQuery plugin |
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22 **/ |
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23 |
767 | 24 /*jslint browser: true, debug: true, forin: true |
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25 */ |
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26 |
636 | 27 // fallback for console.log calls |
797 | 28 if (typeof console === 'undefined') { |
636 | 29 var console = { |
692 | 30 log : function(){}, |
31 debug : function(){}, | |
32 error : function(){} | |
33 }; | |
779 | 34 var customConsole = false; // set to true if debugging for MS IE |
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35 } |
604 | 36 |
37 (function($) { | |
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38 var buttons = { |
610 | 39 reference : { |
689 | 40 onclick : "reference", |
610 | 41 tooltip : "get a reference URL", |
765 | 42 icon : "reference.png" |
610 | 43 }, |
44 zoomin : { | |
643 | 45 onclick : ["zoomBy", 1.4], |
610 | 46 tooltip : "zoom in", |
765 | 47 icon : "zoom-in.png" |
610 | 48 }, |
49 zoomout : { | |
643 | 50 onclick : ["zoomBy", 0.7], |
610 | 51 tooltip : "zoom out", |
765 | 52 icon : "zoom-out.png" |
610 | 53 }, |
54 zoomarea : { | |
654 | 55 onclick : "zoomArea", |
610 | 56 tooltip : "zoom area", |
765 | 57 icon : "zoom-area.png" |
610 | 58 }, |
59 zoomfull : { | |
650 | 60 onclick : "zoomFull", |
610 | 61 tooltip : "view the whole image", |
765 | 62 icon : "zoom-full.png" |
610 | 63 }, |
64 pagewidth : { | |
650 | 65 onclick : ["zoomFull", "width"], |
610 | 66 tooltip : "page width", |
765 | 67 icon : "pagewidth.png" |
610 | 68 }, |
69 back : { | |
623 | 70 onclick : ["gotoPage", "-1"], |
610 | 71 tooltip : "goto previous image", |
765 | 72 icon : "back.png" |
610 | 73 }, |
74 fwd : { | |
623 | 75 onclick : ["gotoPage", "+1"], |
610 | 76 tooltip : "goto next image", |
765 | 77 icon : "fwd.png" |
610 | 78 }, |
79 page : { | |
716 | 80 onclick : "gotoPage", |
81 tooltip : "goto image number", | |
765 | 82 icon : "page.png" |
610 | 83 }, |
84 help : { | |
635 | 85 onclick : "showAboutDiv", |
610 | 86 tooltip : "about Digilib", |
765 | 87 icon : "help.png" |
610 | 88 }, |
89 reset : { | |
688 | 90 onclick : "reset", |
610 | 91 tooltip : "reset image", |
765 | 92 icon : "reset.png" |
610 | 93 }, |
94 mark : { | |
647 | 95 onclick : "setMark", |
610 | 96 tooltip : "set a mark", |
765 | 97 icon : "mark.png" |
610 | 98 }, |
99 delmark : { | |
650 | 100 onclick : "removeMark", |
610 | 101 tooltip : "delete the last mark", |
765 | 102 icon : "delmark.png" |
610 | 103 }, |
104 hmir : { | |
661 | 105 onclick : ["mirror", "h"], |
610 | 106 tooltip : "mirror horizontally", |
765 | 107 icon : "mirror-horizontal.png" |
610 | 108 }, |
109 vmir : { | |
661 | 110 onclick : ["mirror", "v"], |
610 | 111 tooltip : "mirror vertically", |
765 | 112 icon : "mirror-vertical.png" |
610 | 113 }, |
114 rot : { | |
663 | 115 onclick : "rotate", |
610 | 116 tooltip : "rotate image", |
765 | 117 icon : "rotate.png" |
610 | 118 }, |
119 brgt : { | |
663 | 120 onclick : "brightness", |
610 | 121 tooltip : "set brightness", |
765 | 122 icon : "brightness.png" |
610 | 123 }, |
124 cont : { | |
663 | 125 onclick : "contrast", |
610 | 126 tooltip : "set contrast", |
765 | 127 icon : "contrast.png" |
610 | 128 }, |
129 rgb : { | |
130 onclick : "javascript:setParamWin('rgb', '...')", | |
131 tooltip : "set rgb values", | |
765 | 132 icon : "rgb.png" |
610 | 133 }, |
134 quality : { | |
748 | 135 onclick : "setQuality", |
610 | 136 tooltip : "set image quality", |
765 | 137 icon : "quality.png" |
610 | 138 }, |
139 size : { | |
140 onclick : "javascript:toggleSizeMenu()", | |
141 tooltip : "set page size", | |
765 | 142 icon : "size.png" |
610 | 143 }, |
144 calibrationx : { | |
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145 onclick : "calibrate", |
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146 tooltip : "calibrate screen resolution", |
765 | 147 icon : "calibration-x.png" |
610 | 148 }, |
149 scale : { | |
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150 onclick : "setScaleMode", |
610 | 151 tooltip : "change image scale", |
765 | 152 icon : "original-size.png" |
610 | 153 }, |
699 | 154 toggleoptions : { |
748 | 155 onclick : "moreButtons", |
699 | 156 tooltip : "more options", |
765 | 157 icon : "options.png" |
699 | 158 }, |
690 | 159 moreoptions : { |
748 | 160 onclick : ["moreButtons", "+1"], |
690 | 161 tooltip : "more options", |
765 | 162 icon : "options.png" |
690 | 163 }, |
164 lessoptions : { | |
748 | 165 onclick : ["moreButtons", "-1"], |
690 | 166 tooltip : "less options", |
765 | 167 icon : "options.png" |
610 | 168 }, |
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169 up : { |
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170 onclick : ["moveZoomArea", 0, -1], |
877 | 171 tooltip : "move zoom area 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], |
877 | 176 tooltip : "move zoom area 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], |
877 | 181 tooltip : "move zoom area 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], |
877 | 186 tooltip : "move zoom area right", |
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187 icon : "right.png" |
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188 }, |
610 | 189 SEP : { |
765 | 190 icon : "sep.png" |
610 | 191 } |
192 }; | |
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193 |
605 | 194 var defaults = { |
616 | 195 // version of this script |
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196 'version' : 'jquery.digilib.js 2.0b4', |
616 | 197 // logo url |
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198 'logoUrl' : 'img/digilib-logo-text1.png', |
635 | 199 // homepage url (behind logo) |
200 'homeUrl' : 'http://digilib.berlios.de', | |
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201 // base URL to digilib (e.g. 'http://digilib.mpiwg-berlin.mpg.de/digitallibrary') |
744 | 202 'digilibBaseUrl' : null, |
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203 // base URL to Scaler servlet (usually digilibBaseUrl+'/servlet/Scaler') |
652 | 204 'scalerBaseUrl' : null, |
610 | 205 // list of Scaler parameters |
627 | 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 | |
643 | 209 'pn' : 1, |
627 | 210 'ww' : 1.0, |
211 'wh' : 1.0, | |
212 'wx' : 0.0, | |
213 'wy' : 0.0, | |
214 'ws' : 1.0, | |
643 | 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 |
643 | 227 'mk' : '', |
650 | 228 'clop' : '', |
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229 // list of additional parameters (for page outside of digilib) |
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230 'additionalParamNames' : [], |
914 | 231 // list of parameters to suppress when generating page URL |
232 'suppressParamNames' : null, | |
643 | 233 // mode of operation: |
234 // fullscreen = take parameters from page URL, keep state in page URL | |
235 // embedded = take parameters from Javascript options, keep state inside object | |
610 | 236 'interactionMode' : 'fullscreen', |
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237 // buttons |
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238 'buttons' : buttons, |
668 | 239 // defaults for digilib buttons |
665 | 240 'buttonSettings' : { |
241 'fullscreen' : { | |
668 | 242 // path to button images (must end with a slash) |
665 | 243 'imagePath' : 'img/fullscreen/', |
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244 'buttonSetWidth' : 36, |
795 | 245 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","help","reset","toggleoptions"], |
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246 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","lessoptions"], |
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247 'arrowSet' : ["up", "down", "left", "right"], |
682 | 248 'buttonSets' : ['standardSet', 'specialSet'] |
665 | 249 }, |
250 'embedded' : { | |
251 'imagePath' : 'img/embedded/16/', | |
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252 'buttonSetWidth' : 18, |
795 | 253 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","help","reset","toggleoptions"], |
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254 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","scale","lessoptions"], |
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255 'arrowSet' : ["up", "down", "left", "right"], |
682 | 256 'buttonSets' : ['standardSet', 'specialSet'] |
939 | 257 } |
697 | 258 }, |
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259 // arrow bar overlays for moving the zoomed area |
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260 'showZoomArrows' : true, |
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261 // zoom arrow bar minimal width (for small images) |
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262 'zoomArrowMinWidth' : 6, |
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263 // zoom arrow bar standard width |
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264 'zoomArrowWidth' : 32, |
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265 // by what percentage should the arrows move the zoomed area? |
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266 'zoomArrowMoveFactor' : 0.5, |
697 | 267 // number of visible button groups |
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268 'visibleButtonSets' : 1, |
616 | 269 // is the "about" window shown? |
741 | 270 'isAboutDivVisible' : false, |
795 | 271 // default size of background image for drag-scroll (same as Bird's Eye View image) |
272 'bgImgWidth' : 200, | |
273 'bgImgHeight' : 200, | |
274 // maximum width or height of background image for drag-scroll | |
778 | 275 'maxBgSize' : 10000, |
795 | 276 // parameters used by background image |
277 'bgImgParams' : ['fn','pn','dw','dh','mo','rot'], | |
856 | 278 // reserved space in full page display (default value accounts for vertical scrollbar) |
785 | 279 'scalerInset' : 10 |
610 | 280 }; |
655 | 281 |
786 | 282 // list of plugins |
283 var plugins = {}; | |
787 | 284 // object to export functions to plugins |
285 var fn; | |
786 | 286 // affine geometry plugin stub |
785 | 287 var geom; |
944 | 288 // rectangle with maximum zoom area |
785 | 289 var FULL_AREA; |
944 | 290 // limit for float comparison |
291 var EPSILON = 0.000001; | |
655 | 292 |
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293 var actions = { |
668 | 294 // init: digilib initialization |
295 init : function(options) { | |
786 | 296 // import geometry classes |
297 if (plugins.geometry == null) { | |
298 $.error("jquery.digilib.geometry plugin not found!"); | |
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299 // last straw: old version |
785 | 300 geom = dlGeometry(); |
301 } else { | |
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302 // geometry plugin puts classes in the shared fn |
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303 geom = fn.geometry; |
785 | 304 } |
305 FULL_AREA = geom.rectangle(0, 0, 1, 1); | |
788 | 306 |
668 | 307 // settings for this digilib instance are merged from defaults and options |
308 var settings = $.extend({}, defaults, options); | |
309 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
310 var queryParams = {}; | |
311 if (isFullscreen) { | |
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312 queryParams = parseQueryParams(); |
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313 // filter additional parameters |
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314 for (var p in queryParams) { |
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315 if ($.inArray(p, settings.digilibParamNames) < 0) { |
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316 settings.additionalParamNames.push(p); |
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317 } |
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318 } |
668 | 319 } |
320 return this.each(function() { | |
321 var $elem = $(this); | |
322 var data = $elem.data('digilib'); | |
688 | 323 var params, elemSettings; |
668 | 324 // if the plugin hasn't been initialized yet |
325 if (!data) { | |
326 // merge query parameters | |
327 if (isFullscreen) { | |
688 | 328 params = queryParams; |
668 | 329 } else { |
688 | 330 params = parseImgParams($elem); |
785 | 331 if ($.cookie) { |
727 | 332 // retrieve params from cookie |
333 var ck = "digilib-embed:fn:" + escape(params.fn) + ":pn:" + (params.pn || '1'); | |
785 | 334 var cs = $.cookie(ck); |
727 | 335 console.debug("get cookie=", ck, " value=", cs); |
336 if (cs) { | |
337 var cp = parseQueryString(cs); | |
728 | 338 // ignore fn and pn from cookie TODO: should we keep pn? |
339 delete cp.fn; | |
340 delete cp.pn; | |
785 | 341 $.extend(params, cp); |
727 | 342 } |
343 } | |
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344 } |
856 | 345 // setup $elem.data, needs "deep copy" because of nesting |
849 | 346 elemSettings = $.extend(true, {}, settings, params); |
697 | 347 data = { |
856 | 348 // let $(this) know about $(this) :-) |
668 | 349 $elem : $elem, |
856 | 350 // let $elem have its own copy of settings |
668 | 351 settings : elemSettings, |
856 | 352 // and of the URL query parameters |
788 | 353 queryParams : params, |
668 | 354 }; |
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355 // store in jQuery data element |
668 | 356 $elem.data('digilib', data); |
357 } | |
358 unpackParams(data); | |
744 | 359 // check if browser knows *background-size |
741 | 360 for (var bs in {'':1, '-moz-':1, '-webkit-':1, '-o-':1}) { |
361 if ($elem.css(bs+'background-size')) { | |
362 data.hasBgSize = true; | |
363 data.bgSizeName = bs+'background-size'; | |
364 break; | |
365 } | |
366 } | |
944 | 367 data.hasPreviewBg = false; |
942 | 368 // check if browser supports AJAX-like URL-replace without reload |
369 data.hasAsyncReload = (typeof history.replaceState === 'function'); | |
744 | 370 // check digilib base URL |
371 if (elemSettings.digilibBaseUrl == null) { | |
372 if (isFullscreen) { | |
373 // take current host | |
374 var url = window.location.toString(); | |
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375 // assume the page lives in [webapp]/jquery/ |
915 | 376 var pos = url.indexOf('/jquery/'); |
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377 if (pos > 0) { |
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378 elemSettings.digilibBaseUrl = url.substring(0, pos); |
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379 } |
744 | 380 } else { |
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381 // may be we got the scaler URL from the img |
744 | 382 var url = elemSettings.scalerBaseUrl; |
383 if (url) { | |
384 // build it from scaler URL | |
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385 var pos = url.indexOf('/servlet/Scaler'); |
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386 elemSettings.digilibBaseUrl = url.substring(0, pos); |
744 | 387 } |
388 } | |
389 } | |
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390 // check scaler base URL |
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391 if (elemSettings.scalerBaseUrl == null) { |
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392 if (elemSettings.digilibBaseUrl) { |
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393 elemSettings.scalerBaseUrl = elemSettings.digilibBaseUrl + '/servlet/Scaler'; |
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394 } |
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395 } |
786 | 396 // initialise plugins |
787 | 397 for (n in plugins) { |
398 var p = plugins[n]; | |
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399 if (typeof p.init === 'function') { |
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400 p.init(data); |
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401 } |
786 | 402 } |
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403 // get image info from server if needed |
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404 if (data.scaleMode === 'pixel' || data.scaleMode === 'size') { |
797 | 405 loadImageInfo(data); // triggers "imageInfo" on completion |
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406 } |
779 | 407 // create buttons before scaler |
697 | 408 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { |
409 showButtons(data, true, i); | |
942 | 410 } |
779 | 411 // create HTML structure for scaler, taking width of buttons div into account |
412 setupScalerDiv(data); | |
765 | 413 highlightButtons(data); |
668 | 414 // about window creation - TODO: could be deferred? restrict to only one item? |
415 setupAboutDiv(data); | |
856 | 416 // arrow overlays for moving zoomed detail |
417 setupZoomArrows(data); | |
795 | 418 // send setup event |
419 $(data).trigger('setup'); | |
668 | 420 }); |
421 }, | |
422 | |
423 // destroy: clean up digilib | |
424 destroy : function(data) { | |
425 return this.each(function(){ | |
426 var $elem = $(this); | |
917 | 427 $(window).off('.digilib'); // unbind all digilibs(?) |
668 | 428 data.digilib.remove(); |
429 $elem.removeData('digilib'); | |
430 }); | |
431 }, | |
432 | |
433 // show or hide the 'about' window | |
434 showAboutDiv : function(data, show) { | |
765 | 435 var on = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); |
436 data.settings.isAboutDivVisible = on; | |
437 highlightButtons(data, 'help', on); | |
668 | 438 }, |
655 | 439 |
668 | 440 // goto given page nr (+/-: relative) |
441 gotoPage : function (data, pageNr) { | |
442 var settings = data.settings; | |
443 var oldpn = settings.pn; | |
716 | 444 if (pageNr == null) { |
445 pageNr = window.prompt("Goto page number", oldpn); | |
446 } | |
668 | 447 var pn = setNumValue(settings, "pn", pageNr); |
448 if (pn == null) return false; // nothing happened | |
449 if (pn < 1) { | |
450 alert("no such page (page number too low)"); | |
451 settings.pn = oldpn; | |
452 return false; | |
453 } | |
767 | 454 // TODO: how do we get pt? |
668 | 455 if (settings.pt) { |
456 if (pn > settings.pt) { | |
457 alert("no such page (page number too high)"); | |
623 | 458 settings.pn = oldpn; |
459 return false; | |
634 | 460 } |
668 | 461 } |
462 // reset mk and others(?) | |
463 data.marks = []; | |
927 | 464 data.zoomArea = FULL_AREA.copy(); |
668 | 465 // then reload |
466 redisplay(data); | |
467 }, | |
654 | 468 |
668 | 469 // zoom by a given factor |
470 zoomBy : function (data, factor) { | |
471 zoomBy(data, factor); | |
472 }, | |
647 | 473 |
767 | 474 // zoom to area (or interactive) |
475 zoomArea : function (data, area) { | |
476 var settings = data.settings; | |
477 if (area == null) { | |
478 // interactively | |
479 zoomArea(data); | |
480 } else { | |
481 data.zoomArea = geom.rectangle(area); | |
482 redisplay(data); | |
483 } | |
668 | 484 }, |
650 | 485 |
668 | 486 // zoom out to full page |
487 zoomFull : function (data, mode) { | |
917 | 488 data.zoomArea = FULL_AREA.copy(); |
668 | 489 if (mode === 'width') { |
490 data.dlOpts.fitwidth = 1; | |
491 delete data.dlOpts.fitheight; | |
492 } else if (mode === 'height') { | |
493 data.dlOpts.fitheight = 1; | |
494 delete data.dlOpts.fitwidth; | |
495 } else { | |
496 delete data.dlOpts.fitwidth; | |
497 delete data.dlOpts.fitheight; | |
498 } | |
499 redisplay(data); | |
500 }, | |
501 | |
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502 // move zoomed area |
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503 moveZoomArea : function (data, dx, dy) { |
944 | 504 var za = data.zoomArea.copy(); |
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505 var factor = data.settings.zoomArrowMoveFactor; |
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506 var deltaX = dx * factor * za.width; |
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507 var deltaY = dy * factor * za.height; |
931 | 508 var delta = geom.position(deltaX, deltaY); |
509 za.addPosition(delta); | |
944 | 510 za = FULL_AREA.fit(za); |
942 | 511 $(data).trigger('changeZoomArea', za); |
944 | 512 data.zoomArea = za; |
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513 redisplay(data); |
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514 }, |
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515 |
668 | 516 // set a mark by clicking (or giving a position) |
517 setMark : function (data, mpos) { | |
518 if (mpos == null) { | |
519 // interactive | |
520 setMark(data); | |
521 } else { | |
522 // use position | |
523 data.marks.push(pos); | |
663 | 524 redisplay(data); |
604 | 525 } |
668 | 526 }, |
527 | |
528 // remove the last mark | |
529 removeMark : function (data) { | |
530 data.marks.pop(); | |
531 redisplay(data); | |
532 }, | |
533 | |
534 // mirror the image | |
535 mirror : function (data, mode) { | |
536 var flags = data.scalerFlags; | |
537 if (mode === 'h') { | |
538 if (flags.hmir) { | |
539 delete flags.hmir; | |
540 } else { | |
541 flags.hmir = 1; | |
542 } | |
543 } else { | |
544 if (flags.vmir) { | |
545 delete flags.vmir; | |
546 } else { | |
547 flags.vmir = 1; | |
548 } | |
549 } | |
550 redisplay(data); | |
551 }, | |
650 | 552 |
668 | 553 // rotate the image |
554 rotate : function (data, angle) { | |
555 var rot = data.settings.rot; | |
556 if (angle == null) { | |
557 angle = window.prompt("Rotation angle:", rot); | |
558 } | |
559 data.settings.rot = angle; | |
560 redisplay(data); | |
561 }, | |
562 | |
563 // change brightness | |
564 brightness : function (data, factor) { | |
565 var brgt = data.settings.brgt; | |
566 if (factor == null) { | |
567 factor = window.prompt("Brightness (-255..255)", brgt); | |
568 } | |
569 data.settings.brgt = factor; | |
570 redisplay(data); | |
571 }, | |
572 | |
573 // change contrast | |
574 contrast : function (data, factor) { | |
575 var cont = data.settings.cont; | |
576 if (factor == null) { | |
577 factor = window.prompt("Contrast (-8, 8)", cont); | |
578 } | |
579 data.settings.cont = factor; | |
580 redisplay(data); | |
688 | 581 }, |
710 | 582 |
690 | 583 // display more (or less) button sets |
748 | 584 moreButtons : function (data, more) { |
696 | 585 var settings = data.settings; |
699 | 586 if (more == null) { |
703 | 587 // toggle more or less (only works for 2 sets) |
699 | 588 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
589 if (settings.visibleButtonSets >= maxbtns) { | |
590 more = '-1'; | |
591 } else { | |
592 more = '+1'; | |
593 } | |
594 } | |
690 | 595 if (more === '-1') { |
596 // remove set | |
697 | 597 var setIdx = settings.visibleButtonSets - 1; |
598 if (showButtons(data, false, setIdx, true)) { | |
599 settings.visibleButtonSets--; | |
600 } | |
690 | 601 } else { |
602 // add set | |
697 | 603 var setIdx = settings.visibleButtonSets; |
604 if (showButtons(data, true, setIdx, true)) { | |
605 settings.visibleButtonSets++; | |
690 | 606 } |
607 } | |
723 | 608 // persist setting |
609 storeOptions(data); | |
691 | 610 }, |
688 | 611 |
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612 // reset image parameters to defaults TODO: improve this! |
688 | 613 reset : function (data) { |
614 var settings = data.settings; | |
615 var paramNames = settings.digilibParamNames; | |
616 var params = data.queryParams; | |
617 // delete all digilib parameters | |
618 for (var i = 0; i < paramNames.length; i++) { | |
619 var paramName = paramNames[i]; | |
620 delete settings[paramName]; | |
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621 } |
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622 settings.fn = params.fn || ''; // no default defined |
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623 settings.pn = params.pn || defaults.pn; |
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624 settings.dw = params.dw; |
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625 settings.dh = params.dh; |
709 | 626 settings.isBirdDivVisible = false; |
627 settings.visibleButtonSets = 1; | |
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628 // resets zoomArea, marks, scalerflags |
917 | 629 data.zoomArea = FULL_AREA.copy(); |
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630 data.marks = []; |
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631 data.scalerFlags = {}; |
712 | 632 delete data.dlOpts.fitwidth; |
633 delete data.dlOpts.fitheight; | |
688 | 634 redisplay(data); |
689 | 635 }, |
636 | |
703 | 637 // presents a reference url (returns value if noprompt) |
638 reference : function (data, noprompt) { | |
744 | 639 var url = getDigilibUrl(data); |
703 | 640 if (noprompt == null) { |
641 window.prompt("URL reference to the current view", url); | |
642 } | |
643 return url; | |
644 }, | |
710 | 645 |
703 | 646 // set image quality |
748 | 647 setQuality : function (data, qual) { |
703 | 648 var oldq = getQuality(data); |
649 if (qual == null) { | |
650 qual = window.prompt("Image quality (0..2)", oldq); | |
651 } | |
652 qual = parseInt(qual, 10); | |
653 if (qual >= 0 && qual <= 2) { | |
654 setQuality(data, qual); | |
655 redisplay(data); | |
656 } | |
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657 }, |
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658 |
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659 // calibrate (only faking) |
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660 calibrate : function (data, res) { |
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661 var oldRes = data.settings.ddpi; |
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662 if (res == null) { |
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663 res = window.prompt("Display resolution (dpi)", oldRes); |
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664 } |
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665 if (res != null) { |
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666 data.settings.ddpi = res; |
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667 redisplay(data); |
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668 } |
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669 }, |
775 | 670 |
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671 // set image scale mode |
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672 setScaleMode : function (data, mode) { |
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673 var oldM = getScaleMode(data); |
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674 if (mode == null) { |
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675 mode = window.prompt("Image scale mode (screen, pixel, size)", oldM); |
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676 } |
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677 if (mode != null) { |
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678 setScaleMode(data, mode); |
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679 data.scaleMode = mode; |
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680 redisplay(data); |
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681 } |
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682 } |
775 | 683 |
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684 // end of actions |
605 | 685 }; |
604 | 686 |
608 | 687 // returns parameters from page url |
607 | 688 var parseQueryParams = function() { |
636 | 689 return parseQueryString(window.location.search.slice(1)); |
690 }; | |
655 | 691 |
636 | 692 // returns parameters from embedded img-element |
607 | 693 var parseImgParams = function($elem) { |
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694 var src = $elem.find('img').first().attr('src'); |
710 | 695 if (!src) return null; |
607 | 696 var pos = src.indexOf('?'); |
697 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
698 var scalerUrl = src.substring(0, pos); | |
627 | 699 var params = parseQueryString(query); |
700 params.scalerBaseUrl = scalerUrl; | |
701 return params; | |
636 | 702 }; |
607 | 703 |
608 | 704 // parses query parameter string into parameter object |
607 | 705 var parseQueryString = function(query) { |
701 | 706 var params = {}; |
707 if (query == null) return params; | |
607 | 708 var pairs = query.split("&"); |
636 | 709 //var keys = []; |
607 | 710 for (var i = 0; i < pairs.length; i++) { |
711 var pair = pairs[i].split("="); | |
712 if (pair.length === 2) { | |
627 | 713 params[pair[0]] = pair[1]; |
636 | 714 //keys.push(pair[0]); |
634 | 715 } |
636 | 716 } |
627 | 717 return params; |
636 | 718 }; |
668 | 719 |
643 | 720 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
721 var getParamString = function (settings, keys, defaults) { | |
615 | 722 var paramString = ''; |
650 | 723 var nx = false; |
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724 for (var i = 0; i < keys.length; ++i) { |
615 | 725 var key = keys[i]; |
663 | 726 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 727 // first param gets no '&' |
650 | 728 if (nx) { |
729 paramString += '&'; | |
730 } else { | |
731 nx = true; | |
732 } | |
615 | 733 // add parm=val |
734 paramString += key + '=' + settings[key]; | |
643 | 735 } |
615 | 736 } |
737 return paramString; | |
631 | 738 }; |
739 | |
636 | 740 // returns URL and query string for Scaler |
741 var getScalerUrl = function (data) { | |
741 | 742 packParams(data); |
653 | 743 var settings = data.settings; |
652 | 744 if (settings.scalerBaseUrl == null) { |
745 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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746 } |
636 | 747 var keys = settings.scalerParamNames; |
643 | 748 var queryString = getParamString(settings, keys, defaults); |
636 | 749 var url = settings.scalerBaseUrl + '?' + queryString; |
750 return url; | |
751 }; | |
752 | |
741 | 753 // returns URL for bird's eye view image |
795 | 754 var getBgImgUrl = function (data, moreParams) { |
741 | 755 var settings = data.settings; |
795 | 756 var bgOptions = { |
757 dw : settings.bgImgWidth, | |
758 dh : settings.bgImgHeight | |
741 | 759 }; |
795 | 760 var bgSettings = $.extend({}, settings, bgOptions); |
931 | 761 // filter scaler flags (use only hmir and vmir) |
795 | 762 if (bgSettings.mo != null) { |
763 var mo = ''; | |
764 if (data.scalerFlags.hmir != null) { | |
765 mo += 'hmir,'; | |
767 | 766 } |
795 | 767 if (data.scalerFlags.vmir != null) { |
768 mo += 'vmir'; | |
769 } | |
770 bgSettings.mo = mo; | |
743 | 771 } |
795 | 772 var params = getParamString(bgSettings, settings.bgImgParams, defaults); |
743 | 773 var url = settings.scalerBaseUrl + '?' + params; |
741 | 774 return url; |
775 }; | |
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776 |
636 | 777 // returns URL and query string for current digilib |
644
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778 var getDigilibUrl = function (data) { |
643 | 779 packParams(data); |
636 | 780 var settings = data.settings; |
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781 var paramList = settings.additionalParamNames.concat(settings.digilibParamNames); |
914 | 782 if (settings.suppressParamNames != null) { |
783 // eliminate suppressed parameters from list | |
784 paramList = $.map(paramList, function(e, idx) { | |
785 if ($.inArray(e, settings.suppressParamNames) >= 0) { | |
786 return null; | |
787 } else { | |
788 return e; | |
789 } | |
790 }); | |
791 } | |
913
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792 var queryString = getParamString(settings, paramList, defaults); |
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793 // take url from current location |
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794 var url = window.location.href; |
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795 var pos = url.indexOf('?'); |
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796 if (pos > -1) { |
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797 url = url.substring(0, pos); |
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798 } |
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799 return url + '?' + queryString; |
636 | 800 }; |
801 | |
797 | 802 // loads image information from digilib server via HTTP |
803 var loadImageInfo = function (data) { | |
754
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804 var settings = data.settings; |
917 | 805 // bind default function (only once) |
806 $(data).off('imageInfo', handleImageInfo); | |
807 $(data).on('imageInfo', handleImageInfo); | |
808 var url = settings.digilibBaseUrl + '/ImgInfo-json.jsp'; | |
754
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809 url += '?' + getParamString(settings, ['fn', 'pn'], defaults); |
767 | 810 // TODO: better error handling |
785 | 811 $.getJSON(url, function (json) { |
754
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812 console.debug("got json data=", json); |
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813 data.imgInfo = json; |
797 | 814 // send event |
815 $(data).trigger('imageInfo', [json]); | |
754
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816 }); |
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817 }; |
775 | 818 |
655 | 819 // processes some parameters into objects and stuff |
631 | 820 var unpackParams = function (data) { |
821 var settings = data.settings; | |
636 | 822 // zoom area |
631 | 823 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 824 data.zoomArea = zoomArea; |
636 | 825 // marks |
631 | 826 var marks = []; |
650 | 827 if (settings.mk) { |
828 var mk = settings.mk; | |
829 if (mk.indexOf(";") >= 0) { | |
830 var pa = mk.split(";"); // old format with ";" | |
831 } else { | |
832 var pa = mk.split(","); // new format | |
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833 } |
650 | 834 for (var i = 0; i < pa.length ; i++) { |
835 var pos = pa[i].split("/"); | |
836 if (pos.length > 1) { | |
837 marks.push(geom.position(pos[0], pos[1])); | |
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838 } |
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839 } |
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840 } |
643 | 841 data.marks = marks; |
650 | 842 // mo (Scaler flags) |
843 var flags = {}; | |
844 if (settings.mo) { | |
845 var pa = settings.mo.split(","); | |
846 for (var i = 0; i < pa.length ; i++) { | |
847 flags[pa[i]] = pa[i]; | |
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848 } |
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849 } |
650 | 850 data.scalerFlags = flags; |
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851 data.scaleMode = getScaleMode(data); |
723 | 852 retrieveOptions(data); |
655 | 853 }; |
854 | |
822 | 855 // put area into parameters |
856 var packArea = function (settings, area) { | |
857 if (!area) return; | |
858 // zoom area | |
859 settings.wx = cropFloat(area.x); | |
860 settings.wy = cropFloat(area.y); | |
861 settings.ww = cropFloat(area.width); | |
862 settings.wh = cropFloat(area.height); | |
863 }; | |
864 | |
865 // put marks into parameters | |
866 var packMarks = function (settings, marks) { | |
867 if (!marks) return; | |
868 settings.mk = ''; | |
869 for (var i = 0; i < marks.length; i++) { | |
870 if (i) { | |
871 settings.mk += ','; | |
872 } | |
873 settings.mk += | |
874 cropFloatStr(marks[i].x) + '/' + | |
875 cropFloatStr(marks[i].y); | |
876 } | |
877 }; | |
878 | |
879 // pack scaler flags into parameters | |
880 var packScalerFlags = function (settings, flags) { | |
881 if (!flags) return; | |
882 var mo = ''; | |
883 for (var f in flags) { | |
884 if (mo) { | |
885 mo += ','; | |
886 } | |
887 mo += f; | |
888 } | |
889 settings.mo = mo; | |
890 }; | |
891 | |
631 | 892 // put objects back into parameters |
893 var packParams = function (data) { | |
894 var settings = data.settings; | |
822 | 895 packArea(settings, data.zoomArea); |
896 packMarks(settings, data.marks); | |
897 packScalerFlags(settings, data.scalerFlags); | |
898 // store user interface options in cookie | |
723 | 899 storeOptions(data); |
709 | 900 }; |
688 | 901 |
723 | 902 var storeOptions = function (data) { |
701 | 903 // save digilib options in cookie |
709 | 904 var settings = data.settings; |
905 if (data.dlOpts) { | |
906 // save digilib settings in options | |
907 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
908 data.dlOpts.buttons = settings.visibleButtonSets; | |
909 var clop = ''; | |
910 for (var o in data.dlOpts) { | |
911 if (clop) { | |
912 clop += '&'; | |
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913 } |
709 | 914 clop += o + '=' + data.dlOpts[o]; |
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915 } |
785 | 916 if ($.cookie) { |
709 | 917 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; |
918 console.debug("set cookie=", ck, " value=", clop); | |
785 | 919 $.cookie(ck, clop); |
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920 } |
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921 } |
785 | 922 if (settings.interactionMode !== 'fullscreen' && $.cookie) { |
727 | 923 // store normal parameters in cookie for embedded mode |
924 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
925 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
926 console.debug("set cookie=", ck, " value=", qs); | |
785 | 927 $.cookie(ck, qs); |
727 | 928 } |
631 | 929 }; |
655 | 930 |
723 | 931 var retrieveOptions = function (data) { |
709 | 932 // clop (digilib options) |
933 var opts = {}; | |
934 var settings = data.settings; | |
785 | 935 if ($.cookie) { |
709 | 936 // read from cookie |
937 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
785 | 938 var cp = $.cookie(ck); |
709 | 939 console.debug("get cookie=", ck, " value=", cp); |
940 // in query string format | |
941 opts = parseQueryString(cp); | |
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942 } |
709 | 943 data.dlOpts = opts; |
944 // birdview option | |
945 if (opts.birdview != null) { | |
946 settings.isBirdDivVisible = opts.birdview === '1'; | |
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947 } |
709 | 948 // visible button sets |
949 if (opts.buttons != null) { | |
950 settings.visibleButtonSets = opts.buttons; | |
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951 } |
711 | 952 }; |
709 | 953 |
622 | 954 // (re)load the img from a new scaler URL |
644
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955 var redisplay = function (data) { |
636 | 956 var settings = data.settings; |
957 if (settings.interactionMode === 'fullscreen') { | |
958 // update location.href (browser URL) in fullscreen mode | |
644
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959 var url = getDigilibUrl(data); |
636 | 960 var history = window.history; |
942 | 961 if (data.hasAsyncReload) { |
798
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962 console.debug("faking reload to "+url); |
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963 // change url without reloading (stateObj, title, url) |
890
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964 // TODO: we really need to push the state in stateObj and listen to pop-events |
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965 try { |
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966 history.replaceState({}, '', url); |
931 | 967 // show busy cursor |
968 $('body').css('cursor', 'progress'); | |
934 | 969 data.$scaler.css('cursor', 'progress'); |
913
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970 // change img src |
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971 var imgurl = getScalerUrl(data); |
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972 data.$img.attr('src', imgurl); |
917 | 973 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { |
974 // we need image info, do we have it? | |
975 if (data.imgInfo == null) { | |
976 loadImageInfo(data); | |
977 } | |
978 } | |
979 highlightButtons(data); // TODO: better solution | |
942 | 980 // invalidate background |
944 | 981 data.hasPreviewBg = false; |
913
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982 // send event |
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983 $(data).trigger('redisplay'); |
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984 } catch (e) { |
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985 console.error("replaceState("+url+") didn't work: "+e); |
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986 // reload window |
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987 window.location = url; |
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988 } |
798
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989 } else { |
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990 // reload window |
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991 window.location = url; |
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992 } |
636 | 993 } else { |
994 // embedded mode -- just change img src | |
931 | 995 // show busy cursor |
996 $('body').css('cursor', 'progress'); | |
934 | 997 data.$scaler.css('cursor', 'progress'); |
636 | 998 var url = getScalerUrl(data); |
999 data.$img.attr('src', url); | |
917 | 1000 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { |
1001 // we need image info, do we have it? | |
1002 if (data.imgInfo == null) { | |
1003 loadImageInfo(data); | |
1004 } | |
1005 } | |
1006 highlightButtons(data); // TODO: better solution | |
942 | 1007 // invalidate background |
944 | 1008 data.hasPreviewBg = false; |
795 | 1009 // send event |
1010 $(data).trigger('redisplay'); | |
913
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1011 } |
622 | 1012 }; |
1013 | |
767 | 1014 // update display (overlays etc.) |
1015 var updateDisplay = function (data) { | |
1016 updateImgTrafo(data); | |
1017 renderMarks(data); | |
1018 setupZoomDrag(data); | |
862 | 1019 renderZoomArrows(data); |
784 | 1020 // send event |
1021 $(data).trigger('update'); | |
767 | 1022 }; |
775 | 1023 |
662 | 1024 // returns maximum size for scaler img in fullscreen mode |
778 | 1025 var getFullscreenImgSize = function (data) { |
886
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1026 var mode = data.settings.interactionMode; |
662 | 1027 var $win = $(window); |
1028 var winH = $win.height(); | |
779 | 1029 var winW = $win.width(); |
1030 var $body = $('body'); | |
886
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1031 // include standard body margins and check plausibility |
780 | 1032 var borderW = $body.outerWidth(true) - $body.width(); |
886
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1033 if (borderW === 0 || borderW > 100) { |
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1034 console.debug("fixing border width for getFullscreenImgSize!"); |
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1035 borderW = data.settings.scalerInset; |
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1036 } |
780 | 1037 var borderH = $body.outerHeight(true) - $body.height(); |
886
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1038 if (borderH === 0 || borderH > 100) { |
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1039 console.debug("fixing border height for getFullscreenImgSize!"); |
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1040 borderH = 5; |
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1041 } |
779 | 1042 var buttonsW = 0; |
886
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1043 if (data.settings.visibleButtonSets) { |
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1044 // get button width from settings |
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1045 buttonsW = data.settings.buttonSettings[mode].buttonSetWidth; |
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1046 // TODO: leave space for all button sets? |
779 | 1047 } |
1048 // account for left/right border, body margins and additional requirements | |
886
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1049 var imgW = winW - borderW - buttonsW; |
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1050 var imgH = winH - borderH; |
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1051 console.debug(winW, winH, 'winW:', $win.width(), 'border:', borderW, 'buttonsW:', buttonsW, 'calc:', imgW); |
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1052 return geom.size(imgW, imgH); |
662 | 1053 }; |
1054 | |
608 | 1055 // creates HTML structure for digilib in elem |
627 | 1056 var setupScalerDiv = function (data) { |
1057 var settings = data.settings; | |
647 | 1058 var $elem = data.$elem; |
725 | 1059 $elem.addClass('digilib'); |
728 | 1060 var $img; |
1061 var scalerUrl; | |
608 | 1062 if (settings.interactionMode === 'fullscreen') { |
728 | 1063 // fullscreen |
725 | 1064 $elem.addClass('dl_fullscreen'); |
778 | 1065 var imgSize = getFullscreenImgSize(data); |
650 | 1066 // fitwidth/height omits destination height/width |
728 | 1067 if (data.dlOpts.fitheight == null) { |
650 | 1068 settings.dw = imgSize.width; |
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1069 } |
728 | 1070 if (data.dlOpts.fitwidth == null) { |
650 | 1071 settings.dh = imgSize.height; |
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1072 } |
686 | 1073 scalerUrl = getScalerUrl(data); |
728 | 1074 $img = $('<img/>'); |
609 | 1075 } else { |
728 | 1076 // embedded mode -- try to keep img tag |
725 | 1077 $elem.addClass('dl_embedded'); |
728 | 1078 scalerUrl = getScalerUrl(data); |
623 | 1079 $img = $elem.find('img'); |
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1080 if ($img.length > 0) { |
870
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1081 var oldUrl = $img.attr('src'); |
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1082 // keep img attributes from html |
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1083 var title = $img.attr('title'); |
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1084 var alt = $img.attr('alt'); |
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1085 if (oldUrl === scalerUrl) { |
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1086 console.debug("img detach:", $img); |
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1087 $img.detach(); |
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1088 } else { |
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1089 $img = $('<img/>'); |
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1090 $img.attr("title", title); |
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1091 $img.attr("alt", alt); |
728 | 1092 } |
613
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1093 } else { |
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1094 $img = $('<img/>'); |
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1095 } |
608 | 1096 } |
822 | 1097 // create new inner html, keeping buttons and content marked with "keep" class |
1098 $elem.contents(":not(.keep)").remove(); | |
613
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1099 var $scaler = $('<div class="scaler"/>'); |
779 | 1100 // scaler should be the first child element? |
1101 $elem.prepend($scaler); | |
613
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1102 $scaler.append($img); |
622 | 1103 $img.addClass('pic'); |
649 | 1104 data.$scaler = $scaler; |
636 | 1105 data.$img = $img; |
942 | 1106 // set up event handlers |
1107 $(data).on('changeZoomArea', handleChangeZoomArea); | |
1108 // set up image load handler before setting the src attribute (IE bug) | |
687 | 1109 $img.load(scalerImgLoadedHandler(data)); |
767 | 1110 $img.error(function () {console.error("error loading scaler image");}); |
687 | 1111 $img.attr('src', scalerUrl); |
928 | 1112 // set busy cursor |
1113 $('body').css('cursor','progress'); | |
934 | 1114 data.$scaler.css('cursor', 'progress'); |
608 | 1115 }; |
615 | 1116 |
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1117 // creates HTML structure for a single button |
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1118 var createButton = function (data, $div, buttonName) { |
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1119 var $elem = data.$elem; |
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1120 var settings = data.settings; |
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1121 var mode = settings.interactionMode; |
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1122 var imagePath = settings.buttonSettings[mode].imagePath; |
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1123 // make relative imagePath absolute |
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1124 if (imagePath.charAt(0) !== '/' && imagePath.substring(0,3) !== 'http') { |
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1125 imagePath = settings.digilibBaseUrl + '/jquery/' + imagePath; |
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1126 } |
876
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1127 var buttonConfig = settings.buttons[buttonName]; |
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1128 // button properties |
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1129 var action = buttonConfig.onclick; |
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1130 var tooltip = buttonConfig.tooltip; |
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1131 var icon = imagePath + buttonConfig.icon; |
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1132 // construct the button html |
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1133 var $button = $('<div class="button"></div>'); |
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1134 var $a = $('<a/>'); |
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1135 var $img = $('<img class="button"/>'); |
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1136 $div.append($button); |
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1137 $button.append($a); |
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1138 $a.append($img); |
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1139 // add attributes and bindings |
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1140 $button.attr('title', tooltip); |
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1141 $button.addClass('button-' + buttonName); |
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1142 $img.attr('src', icon); |
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1143 // create handler for the buttons |
917 | 1144 $button.on('click.digilib', (function () { |
876
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1145 // we create a new closure to capture the value of action |
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1146 if ($.isArray(action)) { |
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1147 // the handler function calls digilib with action and parameters |
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1148 return function (evt) { |
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1149 console.debug('click action=', action, ' evt=', evt); |
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1150 $elem.digilib.apply($elem, action); |
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1151 return false; |
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1152 }; |
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1153 } else { |
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1154 // the handler function calls digilib with action |
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1155 return function (evt) { |
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1156 console.debug('click action=', action, ' evt=', evt); |
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1157 $elem.digilib(action); |
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1158 return false; |
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1159 }; |
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1160 } |
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1161 })()); |
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1162 }; |
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1163 |
610 | 1164 // creates HTML structure for buttons in elem |
697 | 1165 var createButtons = function (data, buttonSetIdx) { |
647 | 1166 var $elem = data.$elem; |
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1167 var settings = data.settings; |
665 | 1168 var mode = settings.interactionMode; |
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1169 var buttonSettings = settings.buttonSettings[mode]; |
682 | 1170 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
690 | 1171 if (buttonGroup == null) { |
1172 // no buttons here | |
1173 return; | |
1174 } | |
822 | 1175 // button divs are marked with class "keep" |
1176 var $buttonsDiv = $('<div class="keep buttons"/>'); | |
682 | 1177 var buttonNames = buttonSettings[buttonGroup]; |
1178 for (var i = 0; i < buttonNames.length; i++) { | |
1179 var buttonName = buttonNames[i]; | |
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1180 createButton(data, $buttonsDiv, buttonName); |
690 | 1181 } |
662 | 1182 // make buttons div scroll if too large for window |
1183 if ($buttonsDiv.height() > $(window).height() - 10) { | |
1184 $buttonsDiv.css('position', 'absolute'); | |
1185 } | |
697 | 1186 // buttons hidden at first |
1187 $buttonsDiv.hide(); | |
1188 $elem.append($buttonsDiv); | |
682 | 1189 if (data.$buttonSets == null) { |
697 | 1190 // first button set |
682 | 1191 data.$buttonSets = [$buttonsDiv]; |
1192 } else { | |
690 | 1193 $elem.append($buttonsDiv); |
682 | 1194 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
1195 } | |
612 | 1196 return $buttonsDiv; |
610 | 1197 }; |
615 | 1198 |
856 | 1199 // creates arrow overlays for moving the zoomed area |
1200 var setupZoomArrows = function (data) { | |
1201 var $elem = data.$elem; | |
1202 var settings = data.settings; | |
877 | 1203 var show = settings.showZoomArrows; |
856 | 1204 console.log('zoom arrows:', show); |
1205 if (!show) return; | |
877 | 1206 var mode = settings.interactionMode; |
1207 var arrowNames = settings.buttonSettings[mode].arrowSet; | |
879 | 1208 if (arrowNames == null) return; |
877 | 1209 // arrow divs are marked with class "keep" |
1210 var $arrowsDiv = $('<div class="keep arrows"/>'); | |
1211 $elem.append($arrowsDiv); | |
1212 // create all arrow buttons | |
1213 $.each(arrowNames, function(i, arrowName){ | |
1214 createButton(data, $arrowsDiv, arrowName); | |
1215 }); | |
856 | 1216 }; |
1217 | |
862 | 1218 // size and show arrow overlays, called after scaler img is loaded |
1219 var renderZoomArrows = function (data) { | |
877 | 1220 var settings = data.settings; |
1221 var $arrowsDiv = data.$elem.find('div.arrows'); | |
879 | 1222 if (isFullArea(data.zoomArea) || !settings.showZoomArrows) { |
1223 $arrowsDiv.hide(); | |
1224 return; | |
1225 } | |
1226 $arrowsDiv.show(); | |
877 | 1227 var r = geom.rectangle(data.$scaler); |
1228 // calculate arrow bar width | |
1229 var aw = settings.zoomArrowWidth; | |
1230 var minWidth = settings.zoomArrowMinWidth; | |
1231 // arrow bar width should not exceed 10% of scaler width/height | |
1232 var maxWidth = Math.min(r.width, r.height)/10; | |
1233 if (aw > maxWidth) { | |
1234 aw = maxWidth; | |
1235 if (aw < minWidth) { | |
1236 aw = minWidth; | |
1237 } | |
1238 } | |
879 | 1239 // vertical position of left/right image |
878 | 1240 var arrowData = [{ |
1241 name : 'up', | |
1242 rect : geom.rectangle(r.x, r.y, r.width, aw), | |
1243 show : canMove(data, 0, -1) | |
1244 }, { | |
1245 name : 'down', | |
879 | 1246 rect : geom.rectangle(r.x, r.y + r.height - aw, r.width, aw), |
878 | 1247 show : canMove(data, 0, 1) |
1248 }, { | |
1249 name : 'left', | |
1250 rect : geom.rectangle(r.x, r.y, aw, r.height), | |
884 | 1251 show : canMove(data, -1, 0) |
878 | 1252 }, { |
1253 name : 'right', | |
1254 rect : geom.rectangle(r.x + r.width - aw, r.y, aw, r.height), | |
1255 show : canMove(data, 1, 0) | |
1256 }]; | |
1257 // render a single zoom Arrow | |
1258 var render = function (i, item) { | |
1259 var $arrow = $arrowsDiv.find('div.button-' + item.name); | |
1260 if (item.show) { | |
1261 $arrow.show(); | |
1262 } else { | |
1263 $arrow.hide(); | |
879 | 1264 return; |
878 | 1265 } |
879 | 1266 var r = item.rect; |
1267 r.adjustDiv($arrow); | |
1268 var $a = $arrow.contents('a'); | |
1269 var $img = $a.contents('img'); | |
1270 $img.width(aw).height(aw); | |
1271 // hack for missing vertical-align | |
1272 if (item.name.match(/left|right/)) { | |
1273 var top = (r.height - $a.height())/2; | |
1274 $a.css({'top' : top}); // position : 'relative' | |
1275 } | |
878 | 1276 }; |
1277 $.each(arrowData, render); | |
862 | 1278 }; |
1279 | |
625 | 1280 // creates HTML structure for the about view in elem |
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1281 var setupAboutDiv = function (data) { |
647 | 1282 var $elem = data.$elem; |
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1283 var settings = data.settings; |
625 | 1284 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
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1285 var $header = $('<p>Digilib Image Viewer</p>'); |
616 | 1286 var $link = $('<a/>'); |
1287 var $logo = $('<img class="logo" title="digilib"/>'); | |
1288 var $content = $('<p/>'); | |
1289 $elem.append($aboutDiv); | |
1290 $aboutDiv.append($header); | |
1291 $aboutDiv.append($link); | |
1292 $aboutDiv.append($content); | |
1293 $link.append($logo); | |
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1294 logoUrl = settings.logoUrl; |
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1295 // make relative logoUrl absolute |
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1296 if (logoUrl.charAt(0) !== '/' && logoUrl.substring(0,3) !== 'http') { |
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1297 logoUrl = settings.digilibBaseUrl + '/' + logoUrl; |
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1298 } |
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1299 $logo.attr('src', logoUrl); |
635 | 1300 $link.attr('href', settings.homeUrl); |
616 | 1301 $content.text('Version: ' + settings.version); |
775 | 1302 data.$aboutDiv = $aboutDiv; |
635 | 1303 // click hides |
917 | 1304 $aboutDiv.on('click.digilib', function () { |
775 | 1305 actions['showAboutDiv'](data, false); |
710 | 1306 }); |
634 | 1307 }; |
1308 | |
635 | 1309 // shows some window e.g. 'about' (toggle visibility if show is null) |
1310 var showDiv = function (isVisible, $div, show) { | |
645 | 1311 if (show == null) { |
635 | 1312 // toggle visibility |
1313 isVisible = !isVisible; | |
1314 } else { | |
1315 // set visibility | |
1316 isVisible = show; | |
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1317 } |
635 | 1318 if (isVisible) { |
1319 $div.fadeIn(); | |
1320 } else { | |
1321 $div.fadeOut(); | |
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1322 } |
635 | 1323 return isVisible; |
634 | 1324 }; |
616 | 1325 |
697 | 1326 // display more (or less) button sets |
1327 var showButtons = function (data, more, setIdx, animated) { | |
711 | 1328 var atime = animated ? 'fast': 0; |
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1329 // get button width from settings |
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1330 var mode = data.settings.interactionMode; |
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1331 var btnWidth = data.settings.buttonSettings[mode].buttonSetWidth; |
697 | 1332 if (more) { |
1333 // add set | |
1334 var $otherSets = data.$elem.find('div.buttons:visible'); | |
1335 var $set; | |
1336 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
1337 // set exists | |
1338 $set = data.$buttonSets[setIdx]; | |
1339 } else { | |
1340 $set = createButtons(data, setIdx); | |
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1341 } |
697 | 1342 if ($set == null) return false; |
765 | 1343 // include border in calculation |
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1344 //var btnWidth = $set.outerWidth(); |
779 | 1345 // console.debug("btnWidth", btnWidth); |
697 | 1346 // move remaining sets left and show new set |
711 | 1347 if ($otherSets.length > 0) { |
1348 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
1349 function () {$set.show();}); | |
697 | 1350 } else { |
1351 $set.show(); | |
711 | 1352 } |
697 | 1353 } else { |
1354 // remove set | |
1355 var $set = data.$buttonSets[setIdx]; | |
1356 if ($set == null) return false; | |
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changeset
|
1357 //var btnWidth = $set.outerWidth(); |
697 | 1358 // hide last set |
1359 $set.hide(); | |
1360 // take remaining sets and move right | |
1361 var $otherSets = data.$elem.find('div.buttons:visible'); | |
711 | 1362 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
1363 } | |
697 | 1364 return true; |
1365 }; | |
1366 | |
929
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first step to "preview" like zoom-drag for more operations
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changeset
|
1367 // check for buttons to highlight TODO: improve this! |
765 | 1368 var highlightButtons = function (data, name, on) { |
1369 var $buttons = data.$elem.find('div.buttons:visible'); // include hidden? | |
1370 // add a class for highlighted button | |
1371 var highlight = function (name, on) { | |
1372 var $button = $buttons.find('div.button-' + name); | |
1373 if (on) { | |
1374 $button.addClass('button-on'); | |
1375 } else { | |
1376 $button.removeClass('button-on'); | |
1377 } | |
1378 }; | |
1379 if (name != null) { | |
1380 return highlight(name, on); | |
1381 } | |
1382 var flags = data.scalerFlags; | |
1383 var settings = data.settings; | |
1384 highlight('rot', settings.rot); | |
1385 highlight('brgt', settings.brgt); | |
1386 highlight('cont', settings.cont); | |
1387 highlight('bird', settings.isBirdDivVisible); | |
1388 highlight('help', settings.isAboutDivVisible); | |
1389 highlight('hmir', flags.hmir); | |
1390 highlight('vmir', flags.vmir); | |
766 | 1391 highlight('quality', flags.q1 || flags.q2); |
765 | 1392 highlight('zoomin', ! isFullArea(data.zoomArea)); |
1393 }; | |
775 | 1394 |
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changeset
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1395 // create Transform from area and $img |
772
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changeset
|
1396 var getImgTrafo = function ($img, area, rot, hmir, vmir, mode, data) { |
658
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changeset
|
1397 var picrect = geom.rectangle($img); |
763
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pixel-by-pixel scale mode works with zoom area. (not in all cases)
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changeset
|
1398 if (mode != null) { |
772
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changeset
|
1399 var imgInfo = data.imgInfo; |
763
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changeset
|
1400 if (mode === 'pixel') { |
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changeset
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1401 // scaler mo=clip - image area size does not come from ww, wh |
31664707999e
pixel-by-pixel scale mode works with zoom area. (not in all cases)
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diff
changeset
|
1402 if (imgInfo != null) { |
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changeset
|
1403 area.width = picrect.width / imgInfo.width; |
31664707999e
pixel-by-pixel scale mode works with zoom area. (not in all cases)
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changeset
|
1404 area.height = picrect.height / imgInfo.height; |
31664707999e
pixel-by-pixel scale mode works with zoom area. (not in all cases)
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changeset
|
1405 } else { |
31664707999e
pixel-by-pixel scale mode works with zoom area. (not in all cases)
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changeset
|
1406 console.error("No image info for pixel mode!"); |
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pixel-by-pixel scale mode works with zoom area. (not in all cases)
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changeset
|
1407 } |
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pixel-by-pixel scale mode works with zoom area. (not in all cases)
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changeset
|
1408 } |
772
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original size mode works with zoom area now. needs error handling.
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changeset
|
1409 if (mode === 'size') { |
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original size mode works with zoom area now. needs error handling.
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changeset
|
1410 // scaler mo=osize - image area size does not come from ww, wh |
33b5477f8d84
original size mode works with zoom area now. needs error handling.
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changeset
|
1411 if (imgInfo != null) { |
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changeset
|
1412 var ddpi = parseFloat(data.settings.ddpi); |
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original size mode works with zoom area now. needs error handling.
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changeset
|
1413 area.width = (picrect.width / ddpi) / (imgInfo.width / imgInfo.dpi_x); |
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original size mode works with zoom area now. needs error handling.
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changeset
|
1414 area.height = (picrect.height / ddpi) / (imgInfo.height / imgInfo.dpi_y); |
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original size mode works with zoom area now. needs error handling.
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changeset
|
1415 } else { |
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original size mode works with zoom area now. needs error handling.
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changeset
|
1416 console.error("No image info for original size mode!"); |
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original size mode works with zoom area now. needs error handling.
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changeset
|
1417 } |
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original size mode works with zoom area now. needs error handling.
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|
1418 } |
763
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pixel-by-pixel scale mode works with zoom area. (not in all cases)
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changeset
|
1419 } |
658
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changeset
|
1420 var trafo = geom.transform(); |
675 | 1421 // move zoom area offset to center |
658
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changeset
|
1422 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
675 | 1423 // scale zoom area size to [1,1] |
658
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changeset
|
1424 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
675 | 1425 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
1426 if (rot || hmir || vmir) { | |
1427 // move [0.5,0.5] to center | |
1428 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
1429 if (hmir) { | |
1430 // mirror about center | |
1431 trafo.concat(trafo.getMirror('y')); | |
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changeset
|
1432 } |
675 | 1433 if (vmir) { |
1434 // mirror about center | |
1435 trafo.concat(trafo.getMirror('x')); | |
713
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diff
changeset
|
1436 } |
675 | 1437 if (rot) { |
1438 // rotate around center | |
1439 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
713
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changeset
|
1440 } |
675 | 1441 // move back |
1442 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
713
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changeset
|
1443 } |
664
d5a5ee4cbf04
work on getting transformation to work with rotation (currently still doesn't)
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663
diff
changeset
|
1444 // scale to screen position and size |
658
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changeset
|
1445 trafo.concat(trafo.getScale(picrect)); |
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changeset
|
1446 trafo.concat(trafo.getTranslation(picrect)); |
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changeset
|
1447 return trafo; |
655 | 1448 }; |
678
d50d24b7fd95
first step at dragging birdview zoom indicator around
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diff
changeset
|
1449 |
767 | 1450 // update scaler image transform |
1451 var updateImgTrafo = function (data) { | |
1452 var $img = data.$img; | |
895 | 1453 if ($img == null) |
1454 return; | |
1455 var image = $img.get(0); | |
1456 var imgLoaded = $.browser.msie | |
1457 ? image.width > 0 | |
1458 : image.complete; | |
1459 if (imgLoaded) { | |
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primitive plugin extension mechanism - unsure how useful this is
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diff
changeset
|
1460 // create Transform from current zoomArea and image size |
675 | 1461 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
763
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changeset
|
1462 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir, |
772
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original size mode works with zoom area now. needs error handling.
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changeset
|
1463 data.scaleMode, data); |
760
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primitive plugin extension mechanism - unsure how useful this is
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changeset
|
1464 // console.debug("imgTrafo=", data.imgTrafo); |
767 | 1465 } |
1466 }; | |
775 | 1467 |
797 | 1468 // returns handler for load event of scaler img |
767 | 1469 var scalerImgLoadedHandler = function (data) { |
1470 return function () { | |
1471 var $img = $(this); | |
1472 console.debug("scaler img loaded=",$img); | |
1473 var $scaler = data.$scaler; | |
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changeset
|
1474 var imgRect = geom.rectangle($img); |
931 | 1475 data.imgRect = imgRect; |
934 | 1476 // reset busy cursor |
1477 $('body').css('cursor', 'auto'); | |
1478 $scaler.css('cursor', 'auto'); | |
733 | 1479 // adjust scaler div size |
738 | 1480 imgRect.adjustDiv($scaler); |
715 | 1481 // show image in case it was hidden (for example in zoomDrag) |
733 | 1482 $img.css('visibility', 'visible'); |
741 | 1483 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
767 | 1484 // update display (render marks, etc.) |
1485 updateDisplay(data); | |
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split bird's view code in two more parts, analog to scaler-img code.
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changeset
|
1486 }; |
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split bird's view code in two more parts, analog to scaler-img code.
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changeset
|
1487 }; |
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split bird's view code in two more parts, analog to scaler-img code.
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changeset
|
1488 |
797 | 1489 // handler for imageInfo loaded event |
1490 var handleImageInfo = function (evt, json) { | |
917 | 1491 console.debug("handleImageInfo:", json); |
797 | 1492 var data = this; |
1493 updateDisplay(data); | |
1494 }; | |
813 | 1495 |
942 | 1496 // handler for changeZoomArea event |
1497 var handleChangeZoomArea = function (evt, newZa) { | |
1498 console.debug("handleChangeZoomArea:", newZa); | |
1499 var data = this; | |
944 | 1500 var delta = data.zoomArea.delta(newZa); |
1501 if (Math.abs(delta.width) > EPSILON || Math.abs(delta.height) > EPSILON) { | |
1502 // zoom changed -- set new background | |
1503 console.debug("zoom level changed!"); | |
1504 var dw = data.zoomArea.width / newZa.width; | |
1505 var dh = data.zoomArea.height / newZa.height; | |
1506 var deltapix = geom.size(dw, dh); | |
1507 setZoomBg(data, deltapix); | |
1508 } else if (Math.abs(delta.x) > EPSILON || Math.abs(delta.y) > EPSILON) { | |
942 | 1509 // move background |
944 | 1510 console.debug("zoom area moved:", delta); |
1511 var opx = data.imgTrafo.transform(data.zoomArea.getPosition()); | |
1512 var npx = data.imgTrafo.transform(newZa.getPosition()); | |
1513 var deltapix = npx.delta(opx); | |
1514 if (data.hasPreviewBg) { | |
1515 moveZoomBg(data, deltapix); | |
1516 } else { | |
1517 // no background yet | |
1518 setZoomBg(data, deltapix); | |
1519 } | |
942 | 1520 } |
1521 }; | |
1522 | |
1523 | |
633 | 1524 // place marks on the image |
1525 var renderMarks = function (data) { | |
767 | 1526 if (data.$img == null || data.imgTrafo == null) return; |
850
47a6b93bde43
always show html-defined regions. wrong pos still not fixed
hertzhaft
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849
diff
changeset
|
1527 console.debug("renderMarks: img=",data.$img," imgtrafo=",data.imgTrafo); |
647 | 1528 var $elem = data.$elem; |
643 | 1529 var marks = data.marks; |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
changeset
|
1530 // clear marks |
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
changeset
|
1531 $elem.find('div.mark').remove(); |
633 | 1532 for (var i = 0; i < marks.length; i++) { |
1533 var mark = marks[i]; | |
643 | 1534 if (data.zoomArea.containsPosition(mark)) { |
633 | 1535 var mpos = data.imgTrafo.transform(mark); |
851 | 1536 console.debug("renderMarks: pos=",mpos); |
633 | 1537 // create mark |
813 | 1538 var html = '<div class="mark overlay">'+(i+1)+'</div>'; |
633 | 1539 var $mark = $(html); |
850
47a6b93bde43
always show html-defined regions. wrong pos still not fixed
hertzhaft
parents:
849
diff
changeset
|
1540 $mark.attr("id", "digilib-mark-"+(i+1)); |
633 | 1541 $elem.append($mark); |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1542 mpos.adjustDiv($mark); |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
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711
diff
changeset
|
1543 } |
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diff
changeset
|
1544 } |
633 | 1545 }; |
655 | 1546 |
647 | 1547 // zooms by the given factor |
643 | 1548 var zoomBy = function(data, factor) { |
1549 var area = data.zoomArea; | |
1550 var newarea = area.copy(); | |
1551 // scale | |
1552 newarea.width /= factor; | |
1553 newarea.height /= factor; | |
1554 // and recenter | |
1555 newarea.x -= 0.5 * (newarea.width - area.width); | |
1556 newarea.y -= 0.5 * (newarea.height - area.height); | |
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1557 newarea = FULL_AREA.fit(newarea); |
944 | 1558 $(data).trigger('changeZoomArea', newarea); |
643 | 1559 data.zoomArea = newarea; |
644
ee8ccd84c5f8
reload doesn't take list of changed parameters any more
robcast
parents:
643
diff
changeset
|
1560 redisplay(data); |
643 | 1561 }; |
1562 | |
647 | 1563 // add a mark where clicked |
1564 var setMark = function (data) { | |
649 | 1565 var $scaler = data.$scaler; |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1566 // unbind other handler |
917 | 1567 $scaler.off(".dlZoomDrag"); |
647 | 1568 // start event capturing |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1569 $scaler.one('mousedown.dlSetMark', function (evt) { |
647 | 1570 // event handler adding a new mark |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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741
diff
changeset
|
1571 console.log("setmark at=", evt); |
672
7f7536a5b6d9
image transform works now under rotation!!! (at least for multiples of 90deg)
robcast
parents:
671
diff
changeset
|
1572 var mpos = geom.position(evt); |
647 | 1573 var pos = data.imgTrafo.invtransform(mpos); |
1574 data.marks.push(pos); | |
1575 redisplay(data); | |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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diff
changeset
|
1576 return false; |
647 | 1577 }); |
1578 }; | |
668 | 1579 |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
changeset
|
1580 // zoom to the area around two clicked points |
654 | 1581 var zoomArea = function(data) { |
1582 $elem = data.$elem; | |
1583 $scaler = data.$scaler; | |
1584 var pt1, pt2; | |
1585 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
1586 $elem.append($zoomDiv); | |
775 | 1587 // $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 1588 var picRect = geom.rectangle($scaler); |
1589 // FIX ME: is there a way to query the border width from CSS info? | |
1590 // rect.x -= 2; // account for overlay borders | |
1591 // rect.y -= 2; | |
1592 | |
1593 var zoomStart = function (evt) { | |
1594 pt1 = geom.position(evt); | |
1595 // setup and show zoom div | |
738 | 1596 pt1.adjustDiv($zoomDiv); |
668 | 1597 $zoomDiv.width(0).height(0); |
654 | 1598 $zoomDiv.show(); |
1599 // register events | |
917 | 1600 $elem.on("mousemove.dlZoomArea", zoomMove); |
1601 $elem.on("mouseup.dlZoomArea", zoomEnd); | |
654 | 1602 return false; |
1603 }; | |
668 | 1604 |
741 | 1605 // mouse move handler |
1606 var zoomMove = function (evt) { | |
1607 pt2 = geom.position(evt); | |
1608 var rect = geom.rectangle(pt1, pt2); | |
1609 rect.clipTo(picRect); | |
1610 // update zoom div | |
1611 rect.adjustDiv($zoomDiv); | |
1612 return false; | |
1613 }; | |
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ad483c008159
move birdview zoom indicator along with zoom drag
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diff
changeset
|
1614 |
654 | 1615 // mouseup handler: end moving |
1616 var zoomEnd = function (evt) { | |
1617 pt2 = geom.position(evt); | |
1618 // assume a click and continue if the area is too small | |
1619 var clickRect = geom.rectangle(pt1, pt2); | |
710 | 1620 if (clickRect.getArea() <= 5) return false; |
654 | 1621 // hide zoom div |
1622 $zoomDiv.remove(); | |
1623 // unregister events | |
917 | 1624 $elem.off("mousemove.dlZoomArea", zoomMove); |
1625 $elem.off("mouseup.dlZoomArea", zoomEnd); | |
654 | 1626 // clip and transform |
1627 clickRect.clipTo(picRect); | |
1628 var area = data.imgTrafo.invtransform(clickRect); | |
945 | 1629 //$(data).trigger('changeZoomArea', area); // TODO: doesn't work yet |
654 | 1630 data.zoomArea = area; |
1631 // zoomed is always fit | |
1632 data.settings.ws = 1; | |
738 | 1633 delete data.dlOpts.fitwidth; |
1634 delete data.dlOpts.fitheight; | |
654 | 1635 redisplay(data); |
1636 return false; | |
1637 }; | |
668 | 1638 |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
changeset
|
1639 // clear old handler (also ZoomDrag) |
917 | 1640 $scaler.off('.dlZoomArea'); |
1641 $scaler.off(".dlZoomDrag"); | |
1642 $elem.off('.dlZoomArea'); | |
654 | 1643 // bind start zoom handler |
738 | 1644 $scaler.one('mousedown.dlZoomArea', zoomStart); |
654 | 1645 }; |
647 | 1646 |
931 | 1647 // set zoom background (returns rectangle with fullsize backgroud coordinates) |
944 | 1648 var setZoomBg = function(data, delta) { |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1649 var $scaler = data.$scaler; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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745
diff
changeset
|
1650 var $img = data.$img; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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745
diff
changeset
|
1651 var fullRect = null; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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745
diff
changeset
|
1652 // hide the scaler img, show background of div instead |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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parents:
745
diff
changeset
|
1653 $img.css('visibility', 'hidden'); |
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1654 // use current image as first background |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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745
diff
changeset
|
1655 var scalerCss = { |
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move zoom-drag background along with birdview indicator
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745
diff
changeset
|
1656 'background-image' : 'url(' + $img.attr('src') + ')', |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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745
diff
changeset
|
1657 'background-repeat' : 'no-repeat', |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1658 'background-position' : 'left top', |
918
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1659 'opacity' : '0.7', |
746
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|
1660 'cursor' : 'move' |
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|
1661 }; |
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|
1662 if (data.hasBgSize) { |
944 | 1663 if (delta != null && delta.width != null) { |
1664 // scale background by delta | |
1665 var nw = Math.round(data.imgRect.width * delta.width); | |
1666 var nh = Math.round(data.imgRect.height * delta.height); | |
1667 scalerCss[data.bgSizeName] = nw + 'px ' + nh + 'px'; | |
1668 // correct offset | |
1669 scalerCss['background-position'] = Math.round((data.imgRect.width - nw) / 2) + 'px ' | |
1670 + Math.round((data.imgRect.height - nh) / 2) + 'px'; | |
1671 } else { | |
1672 scalerCss[data.bgSizeName] = 'auto'; | |
1673 } | |
918
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|
1674 // additional full-size background using CSS3-background-size |
746
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|
1675 fullRect = data.imgTrafo.transform(FULL_AREA); |
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1676 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) { |
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1677 // correct offset because background is relative |
751
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
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|
1678 var scalerPos = geom.position($scaler); |
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
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|
1679 fullRect.addPosition(scalerPos.neg()); |
795 | 1680 var url = getBgImgUrl(data); |
942 | 1681 // add second background url, size and position (CSS3) |
918
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|
1682 scalerCss['background-image'] += ', url(' + url + ')'; |
944 | 1683 if (delta != null && delta.width != null) { |
1684 // scale second background by delta | |
1685 var nw = Math.round(fullRect.width * delta.width); | |
1686 var nh = Math.round(fullRect.height * delta.height); | |
1687 scalerCss[data.bgSizeName] += ', ' + nw + 'px ' + nh + 'px'; | |
1688 // and correct position | |
1689 var nx = Math.round(fullRect.x + (fullRect.width - nw) / 2); | |
1690 var ny = Math.round(fullRect.y + (fullRect.height - nh) / 2); | |
1691 scalerCss['background-position'] += ', ' + nx + 'px '+ ny + 'px'; | |
1692 } else { | |
1693 scalerCss[data.bgSizeName] += ', ' + fullRect.width + 'px ' + fullRect.height + 'px'; | |
1694 scalerCss['background-position'] += ', ' + fullRect.x + 'px '+ fullRect.y + 'px'; | |
1695 } | |
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|
1696 } else { |
918
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|
1697 // scaled full-size background image too big |
746
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|
1698 fullRect = null; |
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|
1699 } |
918
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|
1700 } |
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|
1701 $scaler.css(scalerCss); |
942 | 1702 data.hasPreviewBg = true; |
1703 data.fullBgRect = fullRect; | |
944 | 1704 if (delta != null && delta.x != null) { |
1705 moveZoomBg(data, delta); | |
1706 } | |
746
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1707 return fullRect; |
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|
1708 }; |
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1709 |
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1710 // move zoom background |
942 | 1711 var moveZoomBg = function(data, delta) { |
929
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1712 // background position |
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1713 var bgPos = delta.x + "px " + delta.y + "px"; |
942 | 1714 if (data.fullBgRect != null) { |
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|
1715 // add full-size background position |
944 | 1716 var bp = data.fullBgRect.getPosition().add(delta); |
929
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1717 bgPos += ', ' + bp.x + "px " + bp.y + "px"; |
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|
1718 } |
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|
1719 // move the background image to the new position |
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1720 data.$scaler.css('background-position', bgPos); |
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|
1721 }; |
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|
1722 |
738 | 1723 // setup handlers for dragging the zoomed image |
705 | 1724 var setupZoomDrag = function(data) { |
942 | 1725 var startPos, delta; |
733 | 1726 var $document = $(document); |
795 | 1727 var $data = $(data); |
705 | 1728 var $elem = data.$elem; |
1729 var $scaler = data.$scaler; | |
1730 var $img = data.$img; | |
710 | 1731 |
733 | 1732 // drag the image and load a new detail on mouse up |
705 | 1733 var dragStart = function (evt) { |
944 | 1734 // cancel if not left-click |
1735 if (evt.which != 1) return; | |
813 | 1736 console.debug("dragstart at=", evt); |
737
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|
1737 // don't start dragging if not zoomed |
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|
1738 if (isFullArea(data.zoomArea)) return false; |
813 | 1739 $elem.find(".overlay").hide(); // hide all overlays (marks/regions) |
733 | 1740 startPos = geom.position(evt); |
741 | 1741 delta = null; |
746
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|
1742 // set low res background immediately on mousedown |
942 | 1743 setZoomBg(data); |
917 | 1744 $document.on("mousemove.dlZoomDrag", dragMove); |
1745 $document.on("mouseup.dlZoomDrag", dragEnd); | |
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1746 return false; |
705 | 1747 }; |
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|
1748 |
733 | 1749 // mousemove handler: drag zoomed image |
705 | 1750 var dragMove = function (evt) { |
1751 var pos = geom.position(evt); | |
741 | 1752 delta = startPos.delta(pos); |
929
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1753 // position background |
942 | 1754 moveZoomBg(data, delta); |
807
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|
1755 // send message event with current zoom position |
745
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|
1756 var za = geom.rectangle($img); |
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|
1757 za.addPosition(delta.neg()); |
795 | 1758 $data.trigger('dragZoom', [za]); |
705 | 1759 return false; |
1760 }; | |
710 | 1761 |
733 | 1762 // mouseup handler: reload zoomed image in new position |
705 | 1763 var dragEnd = function (evt) { |
739 | 1764 $scaler.css('cursor', 'auto'); |
917 | 1765 $document.off("mousemove.dlZoomDrag", dragMove); |
1766 $document.off("mouseup.dlZoomDrag", dragEnd); | |
733 | 1767 if (delta == null || delta.distance() < 2) { |
1768 // no movement | |
1769 $img.css('visibility', 'visible'); | |
741 | 1770 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
944 | 1771 data.hasPreviewBg = false; |
767 | 1772 // unhide marks |
1773 data.$elem.find('div.mark').show(); | |
813 | 1774 $(data).trigger('redisplay'); |
733 | 1775 return false; |
1776 } | |
1777 // get old zoom area (screen coordinates) | |
741 | 1778 var za = geom.rectangle($img); |
733 | 1779 // move |
741 | 1780 za.addPosition(delta.neg()); |
733 | 1781 // transform back |
1782 var newArea = data.imgTrafo.invtransform(za); | |
735
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|
1783 data.zoomArea = FULL_AREA.fit(newArea); |
708
120ace160386
img reload works for fullscreen, but somehow not precise
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diff
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|
1784 redisplay(data); |
705 | 1785 return false; |
1786 }; | |
735
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diff
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|
1787 |
733 | 1788 // clear old handler |
917 | 1789 $document.off(".dlZoomDrag"); |
1790 $scaler.off(".dlZoomDrag"); | |
742
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diff
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|
1791 if (! isFullArea(data.zoomArea)) { |
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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741
diff
changeset
|
1792 // set handler |
917 | 1793 $scaler.on("mousedown.dlZoomDrag", dragStart); |
742
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|
1794 } |
705 | 1795 }; |
1796 | |
703 | 1797 // get image quality as a number (0..2) |
1798 var getQuality = function (data) { | |
1799 var flags = data.scalerFlags; | |
1800 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
1801 return parseInt(q[1], 10); | |
706 | 1802 }; |
703 | 1803 |
1804 // set image quality as a number (0..2) | |
1805 var setQuality = function (data, qual) { | |
1806 var flags = data.scalerFlags; | |
1807 // clear flags | |
1808 for (var i = 0; i < 3; ++i) { | |
1809 delete flags['q'+i]; | |
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|
1810 } |
703 | 1811 flags['q'+qual] = 'q'+qual; |
706 | 1812 }; |
710 | 1813 |
761
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|
1814 // get image scale mode (screen, pixel, size) |
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diff
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|
1815 var getScaleMode = function (data) { |
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diff
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|
1816 if (data.scalerFlags.clip != null) { |
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|
1817 return 'pixel'; |
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diff
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|
1818 } else if (data.scalerFlags.osize != null) { |
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diff
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|
1819 return 'size'; |
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diff
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|
1820 } |
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|
1821 // mo=fit is default |
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|
1822 return 'screen'; |
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diff
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|
1823 }; |
775 | 1824 |
761
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diff
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|
1825 // set image scale mode (screen, pixel, size) |
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added setScaleMode. no compensation for change in scaling yet.
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760
diff
changeset
|
1826 var setScaleMode = function (data, mode) { |
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added setScaleMode. no compensation for change in scaling yet.
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760
diff
changeset
|
1827 delete data.scalerFlags.fit; |
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added setScaleMode. no compensation for change in scaling yet.
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760
diff
changeset
|
1828 delete data.scalerFlags.clip; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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diff
changeset
|
1829 delete data.scalerFlags.osize; |
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added setScaleMode. no compensation for change in scaling yet.
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760
diff
changeset
|
1830 if (mode === 'pixel') { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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760
diff
changeset
|
1831 data.scalerFlags.clip = 'clip'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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760
diff
changeset
|
1832 } else if (mode === 'size') { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
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diff
changeset
|
1833 data.scalerFlags.osize = 'osize'; |
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added setScaleMode. no compensation for change in scaling yet.
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diff
changeset
|
1834 } |
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added setScaleMode. no compensation for change in scaling yet.
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760
diff
changeset
|
1835 // mo=fit is default |
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added setScaleMode. no compensation for change in scaling yet.
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diff
changeset
|
1836 }; |
775 | 1837 |
761
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diff
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|
1838 // sets a key to a value (relative values with +/- if relative=true) |
650 | 1839 var setNumValue = function(settings, key, value) { |
716 | 1840 if (value == null) return null; |
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diff
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|
1841 if (isNumber(value)) { |
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|
1842 settings[key] = value; |
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|
1843 return value; |
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|
1844 } |
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diff
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|
1845 var sign = value[0]; |
650 | 1846 if (sign === '+' || sign === '-') { |
1847 if (settings[key] == null) { | |
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
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diff
changeset
|
1848 // this isn't perfect but still... |
650 | 1849 settings[key] = 0; |
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|
1850 } |
650 | 1851 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
1852 } else { | |
1853 settings[key] = value; | |
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|
1854 } |
650 | 1855 return settings[key]; |
1856 }; | |
655 | 1857 |
775 | 1858 // auxiliary function, assuming equal border width on all sides |
1859 var getBorderWidth = function($elem) { | |
1860 var border = $elem.outerWidth() - $elem.width(); | |
1861 return border/2; | |
1862 }; | |
1863 | |
878 | 1864 // auxiliary function, can the current zoomarea be moved further? |
1865 var canMove = function(data, movx, movy) { | |
1866 var za = data.zoomArea; | |
1867 if (isFullArea(za)) return false; | |
1868 var x2 = za.x + za.width; | |
1869 var y2 = za.y + za.height; | |
1870 return ((movx < 0) && (za.x > 0)) | |
1871 || ((movx > 0) && (x2 < 1.0)) | |
1872 || ((movy < 0) && (za.y > 0)) | |
1873 || ((movy > 0) && (y2 < 1.0)) | |
1874 }; | |
1875 | |
655 | 1876 // auxiliary function (from old dllib.js) |
795 | 1877 var isFullArea = function (area) { |
659 | 1878 return (area.width === 1.0) && (area.height === 1.0); |
655 | 1879 }; |
1880 | |
641 | 1881 // auxiliary function (from Douglas Crockford, A.10) |
795 | 1882 var isNumber = function (value) { |
710 | 1883 return typeof value === 'number' && isFinite(value); |
641 | 1884 }; |
655 | 1885 |
631 | 1886 // auxiliary function to crop senseless precision |
1887 var cropFloat = function (x) { | |
637 | 1888 return parseInt(10000 * x, 10) / 10000; |
631 | 1889 }; |
655 | 1890 |
813 | 1891 // idem, string version |
1892 var cropFloatStr = function (x) { | |
1893 return cropFloat(x).toString(); | |
1894 }; | |
1895 | |
692 | 1896 // fallback for console.log calls |
1897 if (customConsole) { | |
1898 var logFunction = function(type) { | |
1899 return function(){ | |
1900 var $debug = $('#debug'); // debug div | |
1901 if (!$debug) return; | |
1902 var args = Array.prototype.slice.call(arguments); | |
1903 var argtext = args.join(' '); | |
1904 var $logDiv = $('<div/>'); | |
1905 $logDiv.addClass(type); | |
1906 $logDiv.text(argtext); | |
1907 $debug.append($logDiv); | |
1908 }; | |
1909 }; | |
1910 console.log = logFunction('_log'); | |
1911 console.debug = logFunction('_debug'); | |
1912 console.error = logFunction('_error'); | |
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|
1913 } |
692 | 1914 |
787 | 1915 // functions to export to plugins |
1916 fn = { | |
791 | 1917 geometry : geom, |
787 | 1918 parseQueryString : parseQueryString, |
1919 getScalerUrl : getScalerUrl, | |
1920 getParamString : getParamString, | |
1921 getDigilibUrl : getDigilibUrl, | |
1922 unpackParams : unpackParams, | |
1923 packParams : packParams, | |
822 | 1924 packArea : packArea, |
1925 packMarks : packMarks, | |
1926 packScalerFlags : packScalerFlags, | |
795 | 1927 storeOptions : storeOptions, |
787 | 1928 redisplay : redisplay, |
1929 updateDisplay : updateDisplay, | |
795 | 1930 highlightButtons : highlightButtons, |
791 | 1931 showDiv : showDiv, |
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1932 setZoomBg : setZoomBg, |
787 | 1933 getImgTrafo : getImgTrafo, |
1934 getQuality : getQuality, | |
1935 setQuality : setQuality, | |
1936 getScaleMode : getScaleMode, | |
1937 setScaleMode : setScaleMode, | |
878 | 1938 canMove : canMove, |
795 | 1939 isFullArea : isFullArea, |
813 | 1940 isNumber : isNumber, |
1941 getBorderWidth : getBorderWidth, | |
1942 cropFloat : cropFloat, | |
1943 cropFloatStr : cropFloatStr | |
787 | 1944 }; |
788 | 1945 |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
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798
diff
changeset
|
1946 // hook digilib plugin into jquery |
785 | 1947 $.fn.digilib = function (action) { |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
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diff
changeset
|
1948 // plugin extension mechanism, called when the plugins' code is read |
786 | 1949 if (action === 'plugin') { |
1950 var plugin = arguments[1]; | |
1951 // each plugin needs a name | |
1952 if (plugin.name != null) { | |
1953 plugins[plugin.name] = plugin; | |
793
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1954 // share common objects |
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1955 plugin.defaults = defaults; |
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1956 plugin.buttons = buttons; |
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1957 plugin.actions = actions; |
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1958 plugin.fn = fn; |
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1959 plugin.plugins = plugins; |
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1960 // and install |
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1961 if (typeof plugin.install === 'function') { |
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1962 plugin.install(plugin); |
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1963 } |
786 | 1964 } |
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1965 // plugins will be initialised when action.init is called |
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1966 } else if (actions[action]) { |
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1967 // call action on this with the remaining arguments (inserting data as first argument) |
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1968 var $elem = $(this); |
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1969 var data = $elem.data('digilib'); |
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1970 var args = Array.prototype.slice.call(arguments, 1); |
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1971 args.unshift(data); |
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1972 return actions[action].apply(this, args); |
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1973 } else if (typeof action === 'object' || !action) { |
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1974 // call init on the digilib jQuery object |
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1975 return actions.init.apply(this, arguments); |
605 | 1976 } else { |
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1977 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
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1978 } |
605 | 1979 }; |
692 | 1980 |
604 | 1981 })(jQuery); |