Mercurial > hg > digilib-old
annotate webapp/src/main/webapp/jquery/jquery.digilib.js @ 942:2b136cdbc6b2
working on more generic "preview"
author | robcast |
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date | Wed, 28 Dec 2011 11:44:28 +0100 |
parents | 065dd6895ce7 |
children | 79cbc4694b14 |
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'] |
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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; |
655 | 288 |
785 | 289 var FULL_AREA; |
655 | 290 |
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291 var actions = { |
668 | 292 // init: digilib initialization |
293 init : function(options) { | |
786 | 294 // import geometry classes |
295 if (plugins.geometry == null) { | |
296 $.error("jquery.digilib.geometry plugin not found!"); | |
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297 // last straw: old version |
785 | 298 geom = dlGeometry(); |
299 } else { | |
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300 // geometry plugin puts classes in the shared fn |
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301 geom = fn.geometry; |
785 | 302 } |
303 FULL_AREA = geom.rectangle(0, 0, 1, 1); | |
788 | 304 |
668 | 305 // settings for this digilib instance are merged from defaults and options |
306 var settings = $.extend({}, defaults, options); | |
307 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
308 var queryParams = {}; | |
309 if (isFullscreen) { | |
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310 queryParams = parseQueryParams(); |
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311 // filter additional parameters |
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312 for (var p in queryParams) { |
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313 if ($.inArray(p, settings.digilibParamNames) < 0) { |
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314 settings.additionalParamNames.push(p); |
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315 } |
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316 } |
668 | 317 } |
318 return this.each(function() { | |
319 var $elem = $(this); | |
320 var data = $elem.data('digilib'); | |
688 | 321 var params, elemSettings; |
668 | 322 // if the plugin hasn't been initialized yet |
323 if (!data) { | |
324 // merge query parameters | |
325 if (isFullscreen) { | |
688 | 326 params = queryParams; |
668 | 327 } else { |
688 | 328 params = parseImgParams($elem); |
785 | 329 if ($.cookie) { |
727 | 330 // retrieve params from cookie |
331 var ck = "digilib-embed:fn:" + escape(params.fn) + ":pn:" + (params.pn || '1'); | |
785 | 332 var cs = $.cookie(ck); |
727 | 333 console.debug("get cookie=", ck, " value=", cs); |
334 if (cs) { | |
335 var cp = parseQueryString(cs); | |
728 | 336 // ignore fn and pn from cookie TODO: should we keep pn? |
337 delete cp.fn; | |
338 delete cp.pn; | |
785 | 339 $.extend(params, cp); |
727 | 340 } |
341 } | |
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342 } |
856 | 343 // setup $elem.data, needs "deep copy" because of nesting |
849 | 344 elemSettings = $.extend(true, {}, settings, params); |
697 | 345 data = { |
856 | 346 // let $(this) know about $(this) :-) |
668 | 347 $elem : $elem, |
856 | 348 // let $elem have its own copy of settings |
668 | 349 settings : elemSettings, |
856 | 350 // and of the URL query parameters |
788 | 351 queryParams : params, |
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352 // TODO: move plugins reference out of data |
788 | 353 plugins : plugins |
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 } | |
942 | 367 // check if browser supports AJAX-like URL-replace without reload |
368 data.hasAsyncReload = (typeof history.replaceState === 'function'); | |
744 | 369 // check digilib base URL |
370 if (elemSettings.digilibBaseUrl == null) { | |
371 if (isFullscreen) { | |
372 // take current host | |
373 var url = window.location.toString(); | |
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374 // assume the page lives in [webapp]/jquery/ |
915 | 375 var pos = url.indexOf('/jquery/'); |
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376 if (pos > 0) { |
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377 elemSettings.digilibBaseUrl = url.substring(0, pos); |
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378 } |
744 | 379 } else { |
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380 // may be we got the scaler URL from the img |
744 | 381 var url = elemSettings.scalerBaseUrl; |
382 if (url) { | |
383 // build it from scaler URL | |
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384 var pos = url.indexOf('/servlet/Scaler'); |
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385 elemSettings.digilibBaseUrl = url.substring(0, pos); |
744 | 386 } |
387 } | |
388 } | |
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389 // check scaler base URL |
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390 if (elemSettings.scalerBaseUrl == null) { |
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391 if (elemSettings.digilibBaseUrl) { |
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392 elemSettings.scalerBaseUrl = elemSettings.digilibBaseUrl + '/servlet/Scaler'; |
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393 } |
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394 } |
786 | 395 // initialise plugins |
787 | 396 for (n in plugins) { |
397 var p = plugins[n]; | |
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398 if (typeof p.init === 'function') { |
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399 p.init(data); |
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400 } |
786 | 401 } |
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402 // get image info from server if needed |
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403 if (data.scaleMode === 'pixel' || data.scaleMode === 'size') { |
797 | 404 loadImageInfo(data); // triggers "imageInfo" on completion |
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405 } |
779 | 406 // create buttons before scaler |
697 | 407 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { |
408 showButtons(data, true, i); | |
942 | 409 } |
779 | 410 // create HTML structure for scaler, taking width of buttons div into account |
411 setupScalerDiv(data); | |
765 | 412 highlightButtons(data); |
668 | 413 // about window creation - TODO: could be deferred? restrict to only one item? |
414 setupAboutDiv(data); | |
856 | 415 // arrow overlays for moving zoomed detail |
416 setupZoomArrows(data); | |
795 | 417 // send setup event |
418 $(data).trigger('setup'); | |
668 | 419 }); |
420 }, | |
421 | |
422 // destroy: clean up digilib | |
423 destroy : function(data) { | |
424 return this.each(function(){ | |
425 var $elem = $(this); | |
917 | 426 $(window).off('.digilib'); // unbind all digilibs(?) |
668 | 427 data.digilib.remove(); |
428 $elem.removeData('digilib'); | |
429 }); | |
430 }, | |
431 | |
432 // show or hide the 'about' window | |
433 showAboutDiv : function(data, show) { | |
765 | 434 var on = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); |
435 data.settings.isAboutDivVisible = on; | |
436 highlightButtons(data, 'help', on); | |
668 | 437 }, |
655 | 438 |
668 | 439 // goto given page nr (+/-: relative) |
440 gotoPage : function (data, pageNr) { | |
441 var settings = data.settings; | |
442 var oldpn = settings.pn; | |
716 | 443 if (pageNr == null) { |
444 pageNr = window.prompt("Goto page number", oldpn); | |
445 } | |
668 | 446 var pn = setNumValue(settings, "pn", pageNr); |
447 if (pn == null) return false; // nothing happened | |
448 if (pn < 1) { | |
449 alert("no such page (page number too low)"); | |
450 settings.pn = oldpn; | |
451 return false; | |
452 } | |
767 | 453 // TODO: how do we get pt? |
668 | 454 if (settings.pt) { |
455 if (pn > settings.pt) { | |
456 alert("no such page (page number too high)"); | |
623 | 457 settings.pn = oldpn; |
458 return false; | |
634 | 459 } |
668 | 460 } |
461 // reset mk and others(?) | |
462 data.marks = []; | |
927 | 463 data.zoomArea = FULL_AREA.copy(); |
668 | 464 // then reload |
465 redisplay(data); | |
466 }, | |
654 | 467 |
668 | 468 // zoom by a given factor |
469 zoomBy : function (data, factor) { | |
470 zoomBy(data, factor); | |
471 }, | |
647 | 472 |
767 | 473 // zoom to area (or interactive) |
474 zoomArea : function (data, area) { | |
475 var settings = data.settings; | |
476 if (area == null) { | |
477 // interactively | |
478 zoomArea(data); | |
479 } else { | |
480 data.zoomArea = geom.rectangle(area); | |
481 redisplay(data); | |
482 } | |
668 | 483 }, |
650 | 484 |
668 | 485 // zoom out to full page |
486 zoomFull : function (data, mode) { | |
917 | 487 data.zoomArea = FULL_AREA.copy(); |
668 | 488 if (mode === 'width') { |
489 data.dlOpts.fitwidth = 1; | |
490 delete data.dlOpts.fitheight; | |
491 } else if (mode === 'height') { | |
492 data.dlOpts.fitheight = 1; | |
493 delete data.dlOpts.fitwidth; | |
494 } else { | |
495 delete data.dlOpts.fitwidth; | |
496 delete data.dlOpts.fitheight; | |
497 } | |
498 redisplay(data); | |
499 }, | |
500 | |
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501 // move zoomed area |
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502 moveZoomArea : function (data, dx, dy) { |
931 | 503 var fullBgRect = setZoomBg(data); |
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504 var za = data.zoomArea; |
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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); | |
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510 data.zoomArea = FULL_AREA.fit(za); |
942 | 511 $(data).trigger('changeZoomArea', za); |
931 | 512 // TODO: improve this calculation |
513 var deltapix = geom.position(-dx*factor*data.imgRect.width,-dy*factor*data.imgRect.height); | |
514 moveZoomBg(data, fullBgRect, deltapix); | |
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515 redisplay(data); |
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516 }, |
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517 |
668 | 518 // set a mark by clicking (or giving a position) |
519 setMark : function (data, mpos) { | |
520 if (mpos == null) { | |
521 // interactive | |
522 setMark(data); | |
523 } else { | |
524 // use position | |
525 data.marks.push(pos); | |
663 | 526 redisplay(data); |
604 | 527 } |
668 | 528 }, |
529 | |
530 // remove the last mark | |
531 removeMark : function (data) { | |
532 data.marks.pop(); | |
533 redisplay(data); | |
534 }, | |
535 | |
536 // mirror the image | |
537 mirror : function (data, mode) { | |
538 var flags = data.scalerFlags; | |
539 if (mode === 'h') { | |
540 if (flags.hmir) { | |
541 delete flags.hmir; | |
542 } else { | |
543 flags.hmir = 1; | |
544 } | |
545 } else { | |
546 if (flags.vmir) { | |
547 delete flags.vmir; | |
548 } else { | |
549 flags.vmir = 1; | |
550 } | |
551 } | |
552 redisplay(data); | |
553 }, | |
650 | 554 |
668 | 555 // rotate the image |
556 rotate : function (data, angle) { | |
557 var rot = data.settings.rot; | |
558 if (angle == null) { | |
559 angle = window.prompt("Rotation angle:", rot); | |
560 } | |
561 data.settings.rot = angle; | |
562 redisplay(data); | |
563 }, | |
564 | |
565 // change brightness | |
566 brightness : function (data, factor) { | |
567 var brgt = data.settings.brgt; | |
568 if (factor == null) { | |
569 factor = window.prompt("Brightness (-255..255)", brgt); | |
570 } | |
571 data.settings.brgt = factor; | |
572 redisplay(data); | |
573 }, | |
574 | |
575 // change contrast | |
576 contrast : function (data, factor) { | |
577 var cont = data.settings.cont; | |
578 if (factor == null) { | |
579 factor = window.prompt("Contrast (-8, 8)", cont); | |
580 } | |
581 data.settings.cont = factor; | |
582 redisplay(data); | |
688 | 583 }, |
710 | 584 |
690 | 585 // display more (or less) button sets |
748 | 586 moreButtons : function (data, more) { |
696 | 587 var settings = data.settings; |
699 | 588 if (more == null) { |
703 | 589 // toggle more or less (only works for 2 sets) |
699 | 590 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
591 if (settings.visibleButtonSets >= maxbtns) { | |
592 more = '-1'; | |
593 } else { | |
594 more = '+1'; | |
595 } | |
596 } | |
690 | 597 if (more === '-1') { |
598 // remove set | |
697 | 599 var setIdx = settings.visibleButtonSets - 1; |
600 if (showButtons(data, false, setIdx, true)) { | |
601 settings.visibleButtonSets--; | |
602 } | |
690 | 603 } else { |
604 // add set | |
697 | 605 var setIdx = settings.visibleButtonSets; |
606 if (showButtons(data, true, setIdx, true)) { | |
607 settings.visibleButtonSets++; | |
690 | 608 } |
609 } | |
723 | 610 // persist setting |
611 storeOptions(data); | |
691 | 612 }, |
688 | 613 |
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614 // reset image parameters to defaults TODO: improve this! |
688 | 615 reset : function (data) { |
616 var settings = data.settings; | |
617 var paramNames = settings.digilibParamNames; | |
618 var params = data.queryParams; | |
619 // delete all digilib parameters | |
620 for (var i = 0; i < paramNames.length; i++) { | |
621 var paramName = paramNames[i]; | |
622 delete settings[paramName]; | |
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623 } |
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624 settings.fn = params.fn || ''; // no default defined |
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625 settings.pn = params.pn || defaults.pn; |
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626 settings.dw = params.dw; |
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627 settings.dh = params.dh; |
709 | 628 settings.isBirdDivVisible = false; |
629 settings.visibleButtonSets = 1; | |
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630 // resets zoomArea, marks, scalerflags |
917 | 631 data.zoomArea = FULL_AREA.copy(); |
735
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632 data.marks = []; |
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633 data.scalerFlags = {}; |
712 | 634 delete data.dlOpts.fitwidth; |
635 delete data.dlOpts.fitheight; | |
688 | 636 redisplay(data); |
689 | 637 }, |
638 | |
703 | 639 // presents a reference url (returns value if noprompt) |
640 reference : function (data, noprompt) { | |
744 | 641 var url = getDigilibUrl(data); |
703 | 642 if (noprompt == null) { |
643 window.prompt("URL reference to the current view", url); | |
644 } | |
645 return url; | |
646 }, | |
710 | 647 |
703 | 648 // set image quality |
748 | 649 setQuality : function (data, qual) { |
703 | 650 var oldq = getQuality(data); |
651 if (qual == null) { | |
652 qual = window.prompt("Image quality (0..2)", oldq); | |
653 } | |
654 qual = parseInt(qual, 10); | |
655 if (qual >= 0 && qual <= 2) { | |
656 setQuality(data, qual); | |
657 redisplay(data); | |
658 } | |
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659 }, |
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660 |
754
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661 // calibrate (only faking) |
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662 calibrate : function (data, res) { |
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663 var oldRes = data.settings.ddpi; |
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664 if (res == null) { |
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665 res = window.prompt("Display resolution (dpi)", oldRes); |
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666 } |
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667 if (res != null) { |
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668 data.settings.ddpi = res; |
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669 redisplay(data); |
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670 } |
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671 }, |
775 | 672 |
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673 // set image scale mode |
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674 setScaleMode : function (data, mode) { |
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675 var oldM = getScaleMode(data); |
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676 if (mode == null) { |
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677 mode = window.prompt("Image scale mode (screen, pixel, size)", oldM); |
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678 } |
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679 if (mode != null) { |
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680 setScaleMode(data, mode); |
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681 data.scaleMode = mode; |
761
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682 redisplay(data); |
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683 } |
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684 } |
775 | 685 |
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686 // end of actions |
605 | 687 }; |
604 | 688 |
608 | 689 // returns parameters from page url |
607 | 690 var parseQueryParams = function() { |
636 | 691 return parseQueryString(window.location.search.slice(1)); |
692 }; | |
655 | 693 |
636 | 694 // returns parameters from embedded img-element |
607 | 695 var parseImgParams = function($elem) { |
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696 var src = $elem.find('img').first().attr('src'); |
710 | 697 if (!src) return null; |
607 | 698 var pos = src.indexOf('?'); |
699 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
700 var scalerUrl = src.substring(0, pos); | |
627 | 701 var params = parseQueryString(query); |
702 params.scalerBaseUrl = scalerUrl; | |
703 return params; | |
636 | 704 }; |
607 | 705 |
608 | 706 // parses query parameter string into parameter object |
607 | 707 var parseQueryString = function(query) { |
701 | 708 var params = {}; |
709 if (query == null) return params; | |
607 | 710 var pairs = query.split("&"); |
636 | 711 //var keys = []; |
607 | 712 for (var i = 0; i < pairs.length; i++) { |
713 var pair = pairs[i].split("="); | |
714 if (pair.length === 2) { | |
627 | 715 params[pair[0]] = pair[1]; |
636 | 716 //keys.push(pair[0]); |
634 | 717 } |
636 | 718 } |
627 | 719 return params; |
636 | 720 }; |
668 | 721 |
643 | 722 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
723 var getParamString = function (settings, keys, defaults) { | |
615 | 724 var paramString = ''; |
650 | 725 var nx = false; |
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726 for (var i = 0; i < keys.length; ++i) { |
615 | 727 var key = keys[i]; |
663 | 728 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 729 // first param gets no '&' |
650 | 730 if (nx) { |
731 paramString += '&'; | |
732 } else { | |
733 nx = true; | |
734 } | |
615 | 735 // add parm=val |
736 paramString += key + '=' + settings[key]; | |
643 | 737 } |
615 | 738 } |
739 return paramString; | |
631 | 740 }; |
741 | |
636 | 742 // returns URL and query string for Scaler |
743 var getScalerUrl = function (data) { | |
741 | 744 packParams(data); |
653 | 745 var settings = data.settings; |
652 | 746 if (settings.scalerBaseUrl == null) { |
747 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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748 } |
636 | 749 var keys = settings.scalerParamNames; |
643 | 750 var queryString = getParamString(settings, keys, defaults); |
636 | 751 var url = settings.scalerBaseUrl + '?' + queryString; |
752 return url; | |
753 }; | |
754 | |
741 | 755 // returns URL for bird's eye view image |
795 | 756 var getBgImgUrl = function (data, moreParams) { |
741 | 757 var settings = data.settings; |
795 | 758 var bgOptions = { |
759 dw : settings.bgImgWidth, | |
760 dh : settings.bgImgHeight | |
741 | 761 }; |
795 | 762 var bgSettings = $.extend({}, settings, bgOptions); |
931 | 763 // filter scaler flags (use only hmir and vmir) |
795 | 764 if (bgSettings.mo != null) { |
765 var mo = ''; | |
766 if (data.scalerFlags.hmir != null) { | |
767 mo += 'hmir,'; | |
767 | 768 } |
795 | 769 if (data.scalerFlags.vmir != null) { |
770 mo += 'vmir'; | |
771 } | |
772 bgSettings.mo = mo; | |
743 | 773 } |
795 | 774 var params = getParamString(bgSettings, settings.bgImgParams, defaults); |
743 | 775 var url = settings.scalerBaseUrl + '?' + params; |
741 | 776 return url; |
777 }; | |
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778 |
636 | 779 // returns URL and query string for current digilib |
644
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780 var getDigilibUrl = function (data) { |
643 | 781 packParams(data); |
636 | 782 var settings = data.settings; |
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783 var paramList = settings.additionalParamNames.concat(settings.digilibParamNames); |
914 | 784 if (settings.suppressParamNames != null) { |
785 // eliminate suppressed parameters from list | |
786 paramList = $.map(paramList, function(e, idx) { | |
787 if ($.inArray(e, settings.suppressParamNames) >= 0) { | |
788 return null; | |
789 } else { | |
790 return e; | |
791 } | |
792 }); | |
793 } | |
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794 var queryString = getParamString(settings, paramList, defaults); |
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795 // take url from current location |
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796 var url = window.location.href; |
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797 var pos = url.indexOf('?'); |
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798 if (pos > -1) { |
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799 url = url.substring(0, pos); |
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800 } |
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801 return url + '?' + queryString; |
636 | 802 }; |
803 | |
797 | 804 // loads image information from digilib server via HTTP |
805 var loadImageInfo = function (data) { | |
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806 var settings = data.settings; |
917 | 807 // bind default function (only once) |
808 $(data).off('imageInfo', handleImageInfo); | |
809 $(data).on('imageInfo', handleImageInfo); | |
810 var url = settings.digilibBaseUrl + '/ImgInfo-json.jsp'; | |
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811 url += '?' + getParamString(settings, ['fn', 'pn'], defaults); |
767 | 812 // TODO: better error handling |
785 | 813 $.getJSON(url, function (json) { |
754
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814 console.debug("got json data=", json); |
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815 data.imgInfo = json; |
797 | 816 // send event |
817 $(data).trigger('imageInfo', [json]); | |
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818 }); |
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819 }; |
775 | 820 |
655 | 821 // processes some parameters into objects and stuff |
631 | 822 var unpackParams = function (data) { |
823 var settings = data.settings; | |
636 | 824 // zoom area |
631 | 825 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 826 data.zoomArea = zoomArea; |
636 | 827 // marks |
631 | 828 var marks = []; |
650 | 829 if (settings.mk) { |
830 var mk = settings.mk; | |
831 if (mk.indexOf(";") >= 0) { | |
832 var pa = mk.split(";"); // old format with ";" | |
833 } else { | |
834 var pa = mk.split(","); // new format | |
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835 } |
650 | 836 for (var i = 0; i < pa.length ; i++) { |
837 var pos = pa[i].split("/"); | |
838 if (pos.length > 1) { | |
839 marks.push(geom.position(pos[0], pos[1])); | |
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840 } |
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841 } |
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842 } |
643 | 843 data.marks = marks; |
650 | 844 // mo (Scaler flags) |
845 var flags = {}; | |
846 if (settings.mo) { | |
847 var pa = settings.mo.split(","); | |
848 for (var i = 0; i < pa.length ; i++) { | |
849 flags[pa[i]] = pa[i]; | |
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850 } |
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851 } |
650 | 852 data.scalerFlags = flags; |
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853 data.scaleMode = getScaleMode(data); |
723 | 854 retrieveOptions(data); |
655 | 855 }; |
856 | |
822 | 857 // put area into parameters |
858 var packArea = function (settings, area) { | |
859 if (!area) return; | |
860 // zoom area | |
861 settings.wx = cropFloat(area.x); | |
862 settings.wy = cropFloat(area.y); | |
863 settings.ww = cropFloat(area.width); | |
864 settings.wh = cropFloat(area.height); | |
865 }; | |
866 | |
867 // put marks into parameters | |
868 var packMarks = function (settings, marks) { | |
869 if (!marks) return; | |
870 settings.mk = ''; | |
871 for (var i = 0; i < marks.length; i++) { | |
872 if (i) { | |
873 settings.mk += ','; | |
874 } | |
875 settings.mk += | |
876 cropFloatStr(marks[i].x) + '/' + | |
877 cropFloatStr(marks[i].y); | |
878 } | |
879 }; | |
880 | |
881 // pack scaler flags into parameters | |
882 var packScalerFlags = function (settings, flags) { | |
883 if (!flags) return; | |
884 var mo = ''; | |
885 for (var f in flags) { | |
886 if (mo) { | |
887 mo += ','; | |
888 } | |
889 mo += f; | |
890 } | |
891 settings.mo = mo; | |
892 }; | |
893 | |
631 | 894 // put objects back into parameters |
895 var packParams = function (data) { | |
896 var settings = data.settings; | |
822 | 897 packArea(settings, data.zoomArea); |
898 packMarks(settings, data.marks); | |
899 packScalerFlags(settings, data.scalerFlags); | |
900 // store user interface options in cookie | |
723 | 901 storeOptions(data); |
709 | 902 }; |
688 | 903 |
723 | 904 var storeOptions = function (data) { |
701 | 905 // save digilib options in cookie |
709 | 906 var settings = data.settings; |
907 if (data.dlOpts) { | |
908 // save digilib settings in options | |
909 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
910 data.dlOpts.buttons = settings.visibleButtonSets; | |
911 var clop = ''; | |
912 for (var o in data.dlOpts) { | |
913 if (clop) { | |
914 clop += '&'; | |
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915 } |
709 | 916 clop += o + '=' + data.dlOpts[o]; |
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917 } |
785 | 918 if ($.cookie) { |
709 | 919 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; |
920 console.debug("set cookie=", ck, " value=", clop); | |
785 | 921 $.cookie(ck, clop); |
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922 } |
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923 } |
785 | 924 if (settings.interactionMode !== 'fullscreen' && $.cookie) { |
727 | 925 // store normal parameters in cookie for embedded mode |
926 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
927 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
928 console.debug("set cookie=", ck, " value=", qs); | |
785 | 929 $.cookie(ck, qs); |
727 | 930 } |
631 | 931 }; |
655 | 932 |
723 | 933 var retrieveOptions = function (data) { |
709 | 934 // clop (digilib options) |
935 var opts = {}; | |
936 var settings = data.settings; | |
785 | 937 if ($.cookie) { |
709 | 938 // read from cookie |
939 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
785 | 940 var cp = $.cookie(ck); |
709 | 941 console.debug("get cookie=", ck, " value=", cp); |
942 // in query string format | |
943 opts = parseQueryString(cp); | |
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944 } |
709 | 945 data.dlOpts = opts; |
946 // birdview option | |
947 if (opts.birdview != null) { | |
948 settings.isBirdDivVisible = opts.birdview === '1'; | |
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949 } |
709 | 950 // visible button sets |
951 if (opts.buttons != null) { | |
952 settings.visibleButtonSets = opts.buttons; | |
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953 } |
711 | 954 }; |
709 | 955 |
622 | 956 // (re)load the img from a new scaler URL |
644
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957 var redisplay = function (data) { |
636 | 958 var settings = data.settings; |
959 if (settings.interactionMode === 'fullscreen') { | |
960 // update location.href (browser URL) in fullscreen mode | |
644
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961 var url = getDigilibUrl(data); |
636 | 962 var history = window.history; |
942 | 963 if (data.hasAsyncReload) { |
798
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964 console.debug("faking reload to "+url); |
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965 // change url without reloading (stateObj, title, url) |
890
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966 // TODO: we really need to push the state in stateObj and listen to pop-events |
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967 try { |
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968 history.replaceState({}, '', url); |
931 | 969 // show busy cursor |
970 $('body').css('cursor', 'progress'); | |
934 | 971 data.$scaler.css('cursor', 'progress'); |
913
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972 // change img src |
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973 var imgurl = getScalerUrl(data); |
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974 data.$img.attr('src', imgurl); |
917 | 975 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { |
976 // we need image info, do we have it? | |
977 if (data.imgInfo == null) { | |
978 loadImageInfo(data); | |
979 } | |
980 } | |
981 highlightButtons(data); // TODO: better solution | |
942 | 982 // invalidate background |
983 data.hasPreviewBg = null; | |
913
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984 // send event |
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985 $(data).trigger('redisplay'); |
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986 } catch (e) { |
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987 console.error("replaceState("+url+") didn't work: "+e); |
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988 // reload window |
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989 window.location = url; |
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990 } |
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991 } else { |
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992 // reload window |
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993 window.location = url; |
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994 } |
636 | 995 } else { |
996 // embedded mode -- just change img src | |
931 | 997 // show busy cursor |
998 $('body').css('cursor', 'progress'); | |
934 | 999 data.$scaler.css('cursor', 'progress'); |
636 | 1000 var url = getScalerUrl(data); |
1001 data.$img.attr('src', url); | |
917 | 1002 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { |
1003 // we need image info, do we have it? | |
1004 if (data.imgInfo == null) { | |
1005 loadImageInfo(data); | |
1006 } | |
1007 } | |
1008 highlightButtons(data); // TODO: better solution | |
942 | 1009 // invalidate background |
1010 data.hasPreviewBg = null; | |
795 | 1011 // send event |
1012 $(data).trigger('redisplay'); | |
913
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1013 } |
622 | 1014 }; |
1015 | |
767 | 1016 // update display (overlays etc.) |
1017 var updateDisplay = function (data) { | |
1018 updateImgTrafo(data); | |
1019 renderMarks(data); | |
1020 setupZoomDrag(data); | |
862 | 1021 renderZoomArrows(data); |
784 | 1022 // send event |
1023 $(data).trigger('update'); | |
767 | 1024 }; |
775 | 1025 |
662 | 1026 // returns maximum size for scaler img in fullscreen mode |
778 | 1027 var getFullscreenImgSize = function (data) { |
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1028 var mode = data.settings.interactionMode; |
662 | 1029 var $win = $(window); |
1030 var winH = $win.height(); | |
779 | 1031 var winW = $win.width(); |
1032 var $body = $('body'); | |
886
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1033 // include standard body margins and check plausibility |
780 | 1034 var borderW = $body.outerWidth(true) - $body.width(); |
886
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1035 if (borderW === 0 || borderW > 100) { |
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1036 console.debug("fixing border width for getFullscreenImgSize!"); |
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1037 borderW = data.settings.scalerInset; |
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1038 } |
780 | 1039 var borderH = $body.outerHeight(true) - $body.height(); |
886
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1040 if (borderH === 0 || borderH > 100) { |
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1041 console.debug("fixing border height for getFullscreenImgSize!"); |
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1042 borderH = 5; |
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1043 } |
779 | 1044 var buttonsW = 0; |
886
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1045 if (data.settings.visibleButtonSets) { |
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1046 // get button width from settings |
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1047 buttonsW = data.settings.buttonSettings[mode].buttonSetWidth; |
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1048 // TODO: leave space for all button sets? |
779 | 1049 } |
1050 // account for left/right border, body margins and additional requirements | |
886
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1051 var imgW = winW - borderW - buttonsW; |
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1052 var imgH = winH - borderH; |
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1053 console.debug(winW, winH, 'winW:', $win.width(), 'border:', borderW, 'buttonsW:', buttonsW, 'calc:', imgW); |
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1054 return geom.size(imgW, imgH); |
662 | 1055 }; |
1056 | |
608 | 1057 // creates HTML structure for digilib in elem |
627 | 1058 var setupScalerDiv = function (data) { |
1059 var settings = data.settings; | |
647 | 1060 var $elem = data.$elem; |
725 | 1061 $elem.addClass('digilib'); |
728 | 1062 var $img; |
1063 var scalerUrl; | |
608 | 1064 if (settings.interactionMode === 'fullscreen') { |
728 | 1065 // fullscreen |
725 | 1066 $elem.addClass('dl_fullscreen'); |
778 | 1067 var imgSize = getFullscreenImgSize(data); |
650 | 1068 // fitwidth/height omits destination height/width |
728 | 1069 if (data.dlOpts.fitheight == null) { |
650 | 1070 settings.dw = imgSize.width; |
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1071 } |
728 | 1072 if (data.dlOpts.fitwidth == null) { |
650 | 1073 settings.dh = imgSize.height; |
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1074 } |
686 | 1075 scalerUrl = getScalerUrl(data); |
728 | 1076 $img = $('<img/>'); |
609 | 1077 } else { |
728 | 1078 // embedded mode -- try to keep img tag |
725 | 1079 $elem.addClass('dl_embedded'); |
728 | 1080 scalerUrl = getScalerUrl(data); |
623 | 1081 $img = $elem.find('img'); |
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1082 if ($img.length > 0) { |
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1083 var oldUrl = $img.attr('src'); |
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1084 // keep img attributes from html |
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1085 var title = $img.attr('title'); |
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1086 var alt = $img.attr('alt'); |
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1087 if (oldUrl === scalerUrl) { |
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1088 console.debug("img detach:", $img); |
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1089 $img.detach(); |
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1090 } else { |
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1091 $img = $('<img/>'); |
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1092 $img.attr("title", title); |
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1093 $img.attr("alt", alt); |
728 | 1094 } |
613
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1095 } else { |
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1096 $img = $('<img/>'); |
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1097 } |
608 | 1098 } |
822 | 1099 // create new inner html, keeping buttons and content marked with "keep" class |
1100 $elem.contents(":not(.keep)").remove(); | |
613
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1101 var $scaler = $('<div class="scaler"/>'); |
779 | 1102 // scaler should be the first child element? |
1103 $elem.prepend($scaler); | |
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1104 $scaler.append($img); |
622 | 1105 $img.addClass('pic'); |
649 | 1106 data.$scaler = $scaler; |
636 | 1107 data.$img = $img; |
942 | 1108 // set up event handlers |
1109 $(data).on('changeZoomArea', handleChangeZoomArea); | |
1110 // set up image load handler before setting the src attribute (IE bug) | |
687 | 1111 $img.load(scalerImgLoadedHandler(data)); |
767 | 1112 $img.error(function () {console.error("error loading scaler image");}); |
687 | 1113 $img.attr('src', scalerUrl); |
928 | 1114 // set busy cursor |
1115 $('body').css('cursor','progress'); | |
934 | 1116 data.$scaler.css('cursor', 'progress'); |
608 | 1117 }; |
615 | 1118 |
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1119 // creates HTML structure for a single button |
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1120 var createButton = function (data, $div, buttonName) { |
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1121 var $elem = data.$elem; |
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1122 var settings = data.settings; |
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1123 var mode = settings.interactionMode; |
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1124 var imagePath = settings.buttonSettings[mode].imagePath; |
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1125 // make relative imagePath absolute |
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1126 if (imagePath.charAt(0) !== '/' && imagePath.substring(0,3) !== 'http') { |
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1127 imagePath = settings.digilibBaseUrl + '/jquery/' + imagePath; |
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1128 } |
876
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1129 var buttonConfig = settings.buttons[buttonName]; |
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1130 // button properties |
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1131 var action = buttonConfig.onclick; |
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1132 var tooltip = buttonConfig.tooltip; |
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1133 var icon = imagePath + buttonConfig.icon; |
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1134 // construct the button html |
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1135 var $button = $('<div class="button"></div>'); |
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1136 var $a = $('<a/>'); |
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1137 var $img = $('<img class="button"/>'); |
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1138 $div.append($button); |
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1139 $button.append($a); |
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1140 $a.append($img); |
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1141 // add attributes and bindings |
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1142 $button.attr('title', tooltip); |
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1143 $button.addClass('button-' + buttonName); |
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1144 $img.attr('src', icon); |
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1145 // create handler for the buttons |
917 | 1146 $button.on('click.digilib', (function () { |
876
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1147 // we create a new closure to capture the value of action |
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1148 if ($.isArray(action)) { |
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1149 // the handler function calls digilib with action and parameters |
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1150 return function (evt) { |
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1151 console.debug('click action=', action, ' evt=', evt); |
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1152 $elem.digilib.apply($elem, action); |
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1153 return false; |
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1154 }; |
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1155 } else { |
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1156 // the handler function calls digilib with action |
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1157 return function (evt) { |
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1158 console.debug('click action=', action, ' evt=', evt); |
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1159 $elem.digilib(action); |
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1160 return false; |
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1161 }; |
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1162 } |
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1163 })()); |
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1164 }; |
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1165 |
610 | 1166 // creates HTML structure for buttons in elem |
697 | 1167 var createButtons = function (data, buttonSetIdx) { |
647 | 1168 var $elem = data.$elem; |
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1169 var settings = data.settings; |
665 | 1170 var mode = settings.interactionMode; |
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1171 var buttonSettings = settings.buttonSettings[mode]; |
682 | 1172 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
690 | 1173 if (buttonGroup == null) { |
1174 // no buttons here | |
1175 return; | |
1176 } | |
822 | 1177 // button divs are marked with class "keep" |
1178 var $buttonsDiv = $('<div class="keep buttons"/>'); | |
682 | 1179 var buttonNames = buttonSettings[buttonGroup]; |
1180 for (var i = 0; i < buttonNames.length; i++) { | |
1181 var buttonName = buttonNames[i]; | |
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1182 createButton(data, $buttonsDiv, buttonName); |
690 | 1183 } |
662 | 1184 // make buttons div scroll if too large for window |
1185 if ($buttonsDiv.height() > $(window).height() - 10) { | |
1186 $buttonsDiv.css('position', 'absolute'); | |
1187 } | |
697 | 1188 // buttons hidden at first |
1189 $buttonsDiv.hide(); | |
1190 $elem.append($buttonsDiv); | |
682 | 1191 if (data.$buttonSets == null) { |
697 | 1192 // first button set |
682 | 1193 data.$buttonSets = [$buttonsDiv]; |
1194 } else { | |
690 | 1195 $elem.append($buttonsDiv); |
682 | 1196 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
1197 } | |
612 | 1198 return $buttonsDiv; |
610 | 1199 }; |
615 | 1200 |
856 | 1201 // creates arrow overlays for moving the zoomed area |
1202 var setupZoomArrows = function (data) { | |
1203 var $elem = data.$elem; | |
1204 var settings = data.settings; | |
877 | 1205 var show = settings.showZoomArrows; |
856 | 1206 console.log('zoom arrows:', show); |
1207 if (!show) return; | |
877 | 1208 var mode = settings.interactionMode; |
1209 var arrowNames = settings.buttonSettings[mode].arrowSet; | |
879 | 1210 if (arrowNames == null) return; |
877 | 1211 // arrow divs are marked with class "keep" |
1212 var $arrowsDiv = $('<div class="keep arrows"/>'); | |
1213 $elem.append($arrowsDiv); | |
1214 // create all arrow buttons | |
1215 $.each(arrowNames, function(i, arrowName){ | |
1216 createButton(data, $arrowsDiv, arrowName); | |
1217 }); | |
856 | 1218 }; |
1219 | |
862 | 1220 // size and show arrow overlays, called after scaler img is loaded |
1221 var renderZoomArrows = function (data) { | |
877 | 1222 var settings = data.settings; |
1223 var $arrowsDiv = data.$elem.find('div.arrows'); | |
879 | 1224 if (isFullArea(data.zoomArea) || !settings.showZoomArrows) { |
1225 $arrowsDiv.hide(); | |
1226 return; | |
1227 } | |
1228 $arrowsDiv.show(); | |
877 | 1229 var r = geom.rectangle(data.$scaler); |
1230 // calculate arrow bar width | |
1231 var aw = settings.zoomArrowWidth; | |
1232 var minWidth = settings.zoomArrowMinWidth; | |
1233 // arrow bar width should not exceed 10% of scaler width/height | |
1234 var maxWidth = Math.min(r.width, r.height)/10; | |
1235 if (aw > maxWidth) { | |
1236 aw = maxWidth; | |
1237 if (aw < minWidth) { | |
1238 aw = minWidth; | |
1239 } | |
1240 } | |
879 | 1241 // vertical position of left/right image |
878 | 1242 var arrowData = [{ |
1243 name : 'up', | |
1244 rect : geom.rectangle(r.x, r.y, r.width, aw), | |
1245 show : canMove(data, 0, -1) | |
1246 }, { | |
1247 name : 'down', | |
879 | 1248 rect : geom.rectangle(r.x, r.y + r.height - aw, r.width, aw), |
878 | 1249 show : canMove(data, 0, 1) |
1250 }, { | |
1251 name : 'left', | |
1252 rect : geom.rectangle(r.x, r.y, aw, r.height), | |
884 | 1253 show : canMove(data, -1, 0) |
878 | 1254 }, { |
1255 name : 'right', | |
1256 rect : geom.rectangle(r.x + r.width - aw, r.y, aw, r.height), | |
1257 show : canMove(data, 1, 0) | |
1258 }]; | |
1259 // render a single zoom Arrow | |
1260 var render = function (i, item) { | |
1261 var $arrow = $arrowsDiv.find('div.button-' + item.name); | |
1262 if (item.show) { | |
1263 $arrow.show(); | |
1264 } else { | |
1265 $arrow.hide(); | |
879 | 1266 return; |
878 | 1267 } |
879 | 1268 var r = item.rect; |
1269 r.adjustDiv($arrow); | |
1270 var $a = $arrow.contents('a'); | |
1271 var $img = $a.contents('img'); | |
1272 $img.width(aw).height(aw); | |
1273 // hack for missing vertical-align | |
1274 if (item.name.match(/left|right/)) { | |
1275 var top = (r.height - $a.height())/2; | |
1276 $a.css({'top' : top}); // position : 'relative' | |
1277 } | |
878 | 1278 }; |
1279 $.each(arrowData, render); | |
862 | 1280 }; |
1281 | |
625 | 1282 // creates HTML structure for the about view in elem |
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1283 var setupAboutDiv = function (data) { |
647 | 1284 var $elem = data.$elem; |
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1285 var settings = data.settings; |
625 | 1286 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
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1287 var $header = $('<p>Digilib Image Viewer</p>'); |
616 | 1288 var $link = $('<a/>'); |
1289 var $logo = $('<img class="logo" title="digilib"/>'); | |
1290 var $content = $('<p/>'); | |
1291 $elem.append($aboutDiv); | |
1292 $aboutDiv.append($header); | |
1293 $aboutDiv.append($link); | |
1294 $aboutDiv.append($content); | |
1295 $link.append($logo); | |
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1296 logoUrl = settings.logoUrl; |
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1297 // make relative logoUrl absolute |
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1298 if (logoUrl.charAt(0) !== '/' && logoUrl.substring(0,3) !== 'http') { |
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1299 logoUrl = settings.digilibBaseUrl + '/' + logoUrl; |
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1300 } |
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1301 $logo.attr('src', logoUrl); |
635 | 1302 $link.attr('href', settings.homeUrl); |
616 | 1303 $content.text('Version: ' + settings.version); |
775 | 1304 data.$aboutDiv = $aboutDiv; |
635 | 1305 // click hides |
917 | 1306 $aboutDiv.on('click.digilib', function () { |
775 | 1307 actions['showAboutDiv'](data, false); |
710 | 1308 }); |
634 | 1309 }; |
1310 | |
635 | 1311 // shows some window e.g. 'about' (toggle visibility if show is null) |
1312 var showDiv = function (isVisible, $div, show) { | |
645 | 1313 if (show == null) { |
635 | 1314 // toggle visibility |
1315 isVisible = !isVisible; | |
1316 } else { | |
1317 // set visibility | |
1318 isVisible = show; | |
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1319 } |
635 | 1320 if (isVisible) { |
1321 $div.fadeIn(); | |
1322 } else { | |
1323 $div.fadeOut(); | |
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1324 } |
635 | 1325 return isVisible; |
634 | 1326 }; |
616 | 1327 |
697 | 1328 // display more (or less) button sets |
1329 var showButtons = function (data, more, setIdx, animated) { | |
711 | 1330 var atime = animated ? 'fast': 0; |
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1331 // get button width from settings |
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1332 var mode = data.settings.interactionMode; |
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1333 var btnWidth = data.settings.buttonSettings[mode].buttonSetWidth; |
697 | 1334 if (more) { |
1335 // add set | |
1336 var $otherSets = data.$elem.find('div.buttons:visible'); | |
1337 var $set; | |
1338 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
1339 // set exists | |
1340 $set = data.$buttonSets[setIdx]; | |
1341 } else { | |
1342 $set = createButtons(data, setIdx); | |
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1343 } |
697 | 1344 if ($set == null) return false; |
765 | 1345 // include border in calculation |
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1346 //var btnWidth = $set.outerWidth(); |
779 | 1347 // console.debug("btnWidth", btnWidth); |
697 | 1348 // move remaining sets left and show new set |
711 | 1349 if ($otherSets.length > 0) { |
1350 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
1351 function () {$set.show();}); | |
697 | 1352 } else { |
1353 $set.show(); | |
711 | 1354 } |
697 | 1355 } else { |
1356 // remove set | |
1357 var $set = data.$buttonSets[setIdx]; | |
1358 if ($set == null) return false; | |
886
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1359 //var btnWidth = $set.outerWidth(); |
697 | 1360 // hide last set |
1361 $set.hide(); | |
1362 // take remaining sets and move right | |
1363 var $otherSets = data.$elem.find('div.buttons:visible'); | |
711 | 1364 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
1365 } | |
697 | 1366 return true; |
1367 }; | |
1368 | |
929
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|
1369 // check for buttons to highlight TODO: improve this! |
765 | 1370 var highlightButtons = function (data, name, on) { |
1371 var $buttons = data.$elem.find('div.buttons:visible'); // include hidden? | |
1372 // add a class for highlighted button | |
1373 var highlight = function (name, on) { | |
1374 var $button = $buttons.find('div.button-' + name); | |
1375 if (on) { | |
1376 $button.addClass('button-on'); | |
1377 } else { | |
1378 $button.removeClass('button-on'); | |
1379 } | |
1380 }; | |
1381 if (name != null) { | |
1382 return highlight(name, on); | |
1383 } | |
1384 var flags = data.scalerFlags; | |
1385 var settings = data.settings; | |
1386 highlight('rot', settings.rot); | |
1387 highlight('brgt', settings.brgt); | |
1388 highlight('cont', settings.cont); | |
1389 highlight('bird', settings.isBirdDivVisible); | |
1390 highlight('help', settings.isAboutDivVisible); | |
1391 highlight('hmir', flags.hmir); | |
1392 highlight('vmir', flags.vmir); | |
766 | 1393 highlight('quality', flags.q1 || flags.q2); |
765 | 1394 highlight('zoomin', ! isFullArea(data.zoomArea)); |
1395 }; | |
775 | 1396 |
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1397 // create Transform from area and $img |
772
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1398 var getImgTrafo = function ($img, area, rot, hmir, vmir, mode, data) { |
658
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1399 var picrect = geom.rectangle($img); |
763
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|
1400 if (mode != null) { |
772
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|
1401 var imgInfo = data.imgInfo; |
763
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|
1402 if (mode === 'pixel') { |
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1403 // scaler mo=clip - image area size does not come from ww, wh |
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|
1404 if (imgInfo != null) { |
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|
1405 area.width = picrect.width / imgInfo.width; |
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|
1406 area.height = picrect.height / imgInfo.height; |
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|
1407 } else { |
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|
1408 console.error("No image info for pixel mode!"); |
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|
1409 } |
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|
1410 } |
772
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|
1411 if (mode === 'size') { |
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1412 // scaler mo=osize - image area size does not come from ww, wh |
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|
1413 if (imgInfo != null) { |
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|
1414 var ddpi = parseFloat(data.settings.ddpi); |
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|
1415 area.width = (picrect.width / ddpi) / (imgInfo.width / imgInfo.dpi_x); |
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|
1416 area.height = (picrect.height / ddpi) / (imgInfo.height / imgInfo.dpi_y); |
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|
1417 } else { |
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|
1418 console.error("No image info for original size mode!"); |
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|
1419 } |
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original size mode works with zoom area now. needs error handling.
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|
1420 } |
763
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|
1421 } |
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|
1422 var trafo = geom.transform(); |
675 | 1423 // move zoom area offset to center |
658
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|
1424 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
675 | 1425 // scale zoom area size to [1,1] |
658
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|
1426 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
675 | 1427 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
1428 if (rot || hmir || vmir) { | |
1429 // move [0.5,0.5] to center | |
1430 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
1431 if (hmir) { | |
1432 // mirror about center | |
1433 trafo.concat(trafo.getMirror('y')); | |
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|
1434 } |
675 | 1435 if (vmir) { |
1436 // mirror about center | |
1437 trafo.concat(trafo.getMirror('x')); | |
713
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|
1438 } |
675 | 1439 if (rot) { |
1440 // rotate around center | |
1441 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
713
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|
1442 } |
675 | 1443 // move back |
1444 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
713
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|
1445 } |
664
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work on getting transformation to work with rotation (currently still doesn't)
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|
1446 // scale to screen position and size |
658
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|
1447 trafo.concat(trafo.getScale(picrect)); |
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|
1448 trafo.concat(trafo.getTranslation(picrect)); |
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|
1449 return trafo; |
655 | 1450 }; |
678
d50d24b7fd95
first step at dragging birdview zoom indicator around
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|
1451 |
767 | 1452 // update scaler image transform |
1453 var updateImgTrafo = function (data) { | |
1454 var $img = data.$img; | |
895 | 1455 if ($img == null) |
1456 return; | |
1457 var image = $img.get(0); | |
1458 var imgLoaded = $.browser.msie | |
1459 ? image.width > 0 | |
1460 : image.complete; | |
1461 if (imgLoaded) { | |
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|
1462 // create Transform from current zoomArea and image size |
675 | 1463 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
763
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|
1464 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir, |
772
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|
1465 data.scaleMode, data); |
760
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|
1466 // console.debug("imgTrafo=", data.imgTrafo); |
767 | 1467 } |
1468 }; | |
775 | 1469 |
797 | 1470 // returns handler for load event of scaler img |
767 | 1471 var scalerImgLoadedHandler = function (data) { |
1472 return function () { | |
1473 var $img = $(this); | |
1474 console.debug("scaler img loaded=",$img); | |
1475 var $scaler = data.$scaler; | |
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|
1476 var imgRect = geom.rectangle($img); |
931 | 1477 data.imgRect = imgRect; |
934 | 1478 // reset busy cursor |
1479 $('body').css('cursor', 'auto'); | |
1480 $scaler.css('cursor', 'auto'); | |
733 | 1481 // adjust scaler div size |
738 | 1482 imgRect.adjustDiv($scaler); |
715 | 1483 // show image in case it was hidden (for example in zoomDrag) |
733 | 1484 $img.css('visibility', 'visible'); |
741 | 1485 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
767 | 1486 // update display (render marks, etc.) |
1487 updateDisplay(data); | |
658
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|
1488 }; |
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|
1489 }; |
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|
1490 |
797 | 1491 // handler for imageInfo loaded event |
1492 var handleImageInfo = function (evt, json) { | |
917 | 1493 console.debug("handleImageInfo:", json); |
797 | 1494 var data = this; |
1495 updateDisplay(data); | |
1496 }; | |
813 | 1497 |
942 | 1498 // handler for changeZoomArea event |
1499 var handleChangeZoomArea = function (evt, newZa) { | |
1500 console.debug("handleChangeZoomArea:", newZa); | |
1501 var data = this; | |
1502 if (data.hasPreviewBg == null) { | |
1503 // no background yet | |
1504 setZoomBg(data); | |
1505 } else { | |
1506 // move background | |
1507 // TODO: improve this calculation | |
1508 var deltapix = geom.position(-dx*factor*data.imgRect.width,-dy*factor*data.imgRect.height); | |
1509 moveZoomBg(data, fullBgRect, deltapix); | |
1510 } | |
1511 | |
1512 }; | |
1513 | |
1514 | |
633 | 1515 // place marks on the image |
1516 var renderMarks = function (data) { | |
767 | 1517 if (data.$img == null || data.imgTrafo == null) return; |
850
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always show html-defined regions. wrong pos still not fixed
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849
diff
changeset
|
1518 console.debug("renderMarks: img=",data.$img," imgtrafo=",data.imgTrafo); |
647 | 1519 var $elem = data.$elem; |
643 | 1520 var marks = data.marks; |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
changeset
|
1521 // clear marks |
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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changeset
|
1522 $elem.find('div.mark').remove(); |
633 | 1523 for (var i = 0; i < marks.length; i++) { |
1524 var mark = marks[i]; | |
643 | 1525 if (data.zoomArea.containsPosition(mark)) { |
633 | 1526 var mpos = data.imgTrafo.transform(mark); |
851 | 1527 console.debug("renderMarks: pos=",mpos); |
633 | 1528 // create mark |
813 | 1529 var html = '<div class="mark overlay">'+(i+1)+'</div>'; |
633 | 1530 var $mark = $(html); |
850
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always show html-defined regions. wrong pos still not fixed
hertzhaft
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849
diff
changeset
|
1531 $mark.attr("id", "digilib-mark-"+(i+1)); |
633 | 1532 $elem.append($mark); |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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741
diff
changeset
|
1533 mpos.adjustDiv($mark); |
713
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more cosmetics: added options to validate with http://www.jslint.com
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diff
changeset
|
1534 } |
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changeset
|
1535 } |
633 | 1536 }; |
655 | 1537 |
647 | 1538 // zooms by the given factor |
643 | 1539 var zoomBy = function(data, factor) { |
1540 var area = data.zoomArea; | |
1541 var newarea = area.copy(); | |
1542 // scale | |
1543 newarea.width /= factor; | |
1544 newarea.height /= factor; | |
1545 // and recenter | |
1546 newarea.x -= 0.5 * (newarea.width - area.width); | |
1547 newarea.y -= 0.5 * (newarea.height - area.height); | |
735
790a7673bef0
improved some embedded buttons; fixed reset function
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733
diff
changeset
|
1548 newarea = FULL_AREA.fit(newarea); |
643 | 1549 data.zoomArea = newarea; |
644
ee8ccd84c5f8
reload doesn't take list of changed parameters any more
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643
diff
changeset
|
1550 redisplay(data); |
643 | 1551 }; |
1552 | |
647 | 1553 // add a mark where clicked |
1554 var setMark = function (data) { | |
649 | 1555 var $scaler = data.$scaler; |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
changeset
|
1556 // unbind other handler |
917 | 1557 $scaler.off(".dlZoomDrag"); |
647 | 1558 // start event capturing |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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741
diff
changeset
|
1559 $scaler.one('mousedown.dlSetMark', function (evt) { |
647 | 1560 // event handler adding a new mark |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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741
diff
changeset
|
1561 console.log("setmark at=", evt); |
672
7f7536a5b6d9
image transform works now under rotation!!! (at least for multiples of 90deg)
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parents:
671
diff
changeset
|
1562 var mpos = geom.position(evt); |
647 | 1563 var pos = data.imgTrafo.invtransform(mpos); |
1564 data.marks.push(pos); | |
1565 redisplay(data); | |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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changeset
|
1566 return false; |
647 | 1567 }); |
1568 }; | |
668 | 1569 |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
changeset
|
1570 // zoom to the area around two clicked points |
654 | 1571 var zoomArea = function(data) { |
1572 $elem = data.$elem; | |
1573 $scaler = data.$scaler; | |
1574 var pt1, pt2; | |
1575 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
1576 $elem.append($zoomDiv); | |
775 | 1577 // $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 1578 var picRect = geom.rectangle($scaler); |
1579 // FIX ME: is there a way to query the border width from CSS info? | |
1580 // rect.x -= 2; // account for overlay borders | |
1581 // rect.y -= 2; | |
1582 | |
1583 var zoomStart = function (evt) { | |
1584 pt1 = geom.position(evt); | |
1585 // setup and show zoom div | |
738 | 1586 pt1.adjustDiv($zoomDiv); |
668 | 1587 $zoomDiv.width(0).height(0); |
654 | 1588 $zoomDiv.show(); |
1589 // register events | |
917 | 1590 $elem.on("mousemove.dlZoomArea", zoomMove); |
1591 $elem.on("mouseup.dlZoomArea", zoomEnd); | |
654 | 1592 return false; |
1593 }; | |
668 | 1594 |
741 | 1595 // mouse move handler |
1596 var zoomMove = function (evt) { | |
1597 pt2 = geom.position(evt); | |
1598 var rect = geom.rectangle(pt1, pt2); | |
1599 rect.clipTo(picRect); | |
1600 // update zoom div | |
1601 rect.adjustDiv($zoomDiv); | |
1602 return false; | |
1603 }; | |
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ad483c008159
move birdview zoom indicator along with zoom drag
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diff
changeset
|
1604 |
654 | 1605 // mouseup handler: end moving |
1606 var zoomEnd = function (evt) { | |
1607 pt2 = geom.position(evt); | |
1608 // assume a click and continue if the area is too small | |
1609 var clickRect = geom.rectangle(pt1, pt2); | |
710 | 1610 if (clickRect.getArea() <= 5) return false; |
654 | 1611 // hide zoom div |
1612 $zoomDiv.remove(); | |
1613 // unregister events | |
917 | 1614 $elem.off("mousemove.dlZoomArea", zoomMove); |
1615 $elem.off("mouseup.dlZoomArea", zoomEnd); | |
654 | 1616 // clip and transform |
1617 clickRect.clipTo(picRect); | |
1618 var area = data.imgTrafo.invtransform(clickRect); | |
1619 data.zoomArea = area; | |
1620 // zoomed is always fit | |
1621 data.settings.ws = 1; | |
738 | 1622 delete data.dlOpts.fitwidth; |
1623 delete data.dlOpts.fitheight; | |
654 | 1624 redisplay(data); |
1625 return false; | |
1626 }; | |
668 | 1627 |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
changeset
|
1628 // clear old handler (also ZoomDrag) |
917 | 1629 $scaler.off('.dlZoomArea'); |
1630 $scaler.off(".dlZoomDrag"); | |
1631 $elem.off('.dlZoomArea'); | |
654 | 1632 // bind start zoom handler |
738 | 1633 $scaler.one('mousedown.dlZoomArea', zoomStart); |
654 | 1634 }; |
647 | 1635 |
931 | 1636 // set zoom background (returns rectangle with fullsize backgroud coordinates) |
929
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first step to "preview" like zoom-drag for more operations
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diff
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|
1637 var setZoomBg = function(data) { |
746
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move zoom-drag background along with birdview indicator
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745
diff
changeset
|
1638 var $scaler = data.$scaler; |
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1639 var $img = data.$img; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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745
diff
changeset
|
1640 var fullRect = null; |
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move zoom-drag background along with birdview indicator
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745
diff
changeset
|
1641 // hide the scaler img, show background of div instead |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1642 $img.css('visibility', 'hidden'); |
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
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diff
changeset
|
1643 // use current image as first background |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1644 var scalerCss = { |
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move zoom-drag background along with birdview indicator
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745
diff
changeset
|
1645 'background-image' : 'url(' + $img.attr('src') + ')', |
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1646 'background-repeat' : 'no-repeat', |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1647 'background-position' : 'left top', |
918
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use current size background as well as scaled full-size background when dragging
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917
diff
changeset
|
1648 'opacity' : '0.7', |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1649 'cursor' : 'move' |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1650 }; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1651 if (data.hasBgSize) { |
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
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917
diff
changeset
|
1652 // additional full-size background using CSS3-background-size |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1653 fullRect = data.imgTrafo.transform(FULL_AREA); |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1654 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) { |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1655 // correct offset because background is relative |
751
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
748
diff
changeset
|
1656 var scalerPos = geom.position($scaler); |
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
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parents:
748
diff
changeset
|
1657 fullRect.addPosition(scalerPos.neg()); |
795 | 1658 var url = getBgImgUrl(data); |
942 | 1659 // add second background url, size and position (CSS3) |
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1660 scalerCss['background-image'] += ', url(' + url + ')'; |
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1661 scalerCss[data.bgSizeName] = 'auto, ' + fullRect.width + 'px ' + fullRect.height + 'px'; |
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1662 scalerCss['background-position'] += ', ' + fullRect.x + 'px '+ fullRect.y + 'px'; |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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diff
changeset
|
1663 } else { |
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
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parents:
917
diff
changeset
|
1664 // scaled full-size background image too big |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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745
diff
changeset
|
1665 fullRect = null; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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745
diff
changeset
|
1666 } |
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
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917
diff
changeset
|
1667 } |
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use current size background as well as scaled full-size background when dragging
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917
diff
changeset
|
1668 $scaler.css(scalerCss); |
942 | 1669 data.hasPreviewBg = true; |
1670 data.fullBgRect = fullRect; | |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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diff
changeset
|
1671 return fullRect; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1672 }; |
929
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
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928
diff
changeset
|
1673 |
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
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diff
changeset
|
1674 // move zoom background |
942 | 1675 var moveZoomBg = function(data, delta) { |
929
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
robcast
parents:
928
diff
changeset
|
1676 // background position |
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
robcast
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928
diff
changeset
|
1677 var bgPos = delta.x + "px " + delta.y + "px"; |
942 | 1678 if (data.fullBgRect != null) { |
929
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
robcast
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928
diff
changeset
|
1679 // add full-size background position |
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
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diff
changeset
|
1680 var bp = fullRect.getPosition().add(delta); |
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
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928
diff
changeset
|
1681 bgPos += ', ' + bp.x + "px " + bp.y + "px"; |
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
robcast
parents:
928
diff
changeset
|
1682 } |
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
robcast
parents:
928
diff
changeset
|
1683 // move the background image to the new position |
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
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diff
changeset
|
1684 data.$scaler.css('background-position', bgPos); |
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
robcast
parents:
928
diff
changeset
|
1685 }; |
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
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928
diff
changeset
|
1686 |
738 | 1687 // setup handlers for dragging the zoomed image |
705 | 1688 var setupZoomDrag = function(data) { |
942 | 1689 var startPos, delta; |
733 | 1690 var $document = $(document); |
795 | 1691 var $data = $(data); |
705 | 1692 var $elem = data.$elem; |
1693 var $scaler = data.$scaler; | |
1694 var $img = data.$img; | |
710 | 1695 |
733 | 1696 // drag the image and load a new detail on mouse up |
705 | 1697 var dragStart = function (evt) { |
813 | 1698 console.debug("dragstart at=", evt); |
737
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
hertzhaft
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736
diff
changeset
|
1699 // don't start dragging if not zoomed |
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
hertzhaft
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736
diff
changeset
|
1700 if (isFullArea(data.zoomArea)) return false; |
813 | 1701 $elem.find(".overlay").hide(); // hide all overlays (marks/regions) |
733 | 1702 startPos = geom.position(evt); |
741 | 1703 delta = null; |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
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diff
changeset
|
1704 // set low res background immediately on mousedown |
942 | 1705 setZoomBg(data); |
917 | 1706 $document.on("mousemove.dlZoomDrag", dragMove); |
1707 $document.on("mouseup.dlZoomDrag", dragEnd); | |
713
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more cosmetics: added options to validate with http://www.jslint.com
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diff
changeset
|
1708 return false; |
705 | 1709 }; |
745
ad483c008159
move birdview zoom indicator along with zoom drag
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diff
changeset
|
1710 |
733 | 1711 // mousemove handler: drag zoomed image |
705 | 1712 var dragMove = function (evt) { |
1713 var pos = geom.position(evt); | |
741 | 1714 delta = startPos.delta(pos); |
929
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first step to "preview" like zoom-drag for more operations
robcast
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928
diff
changeset
|
1715 // position background |
942 | 1716 moveZoomBg(data, delta); |
807
1b1728926534
geometry: overlapsRect() plus some comment clarifications
hertzhaft
parents:
799
diff
changeset
|
1717 // send message event with current zoom position |
745
ad483c008159
move birdview zoom indicator along with zoom drag
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744
diff
changeset
|
1718 var za = geom.rectangle($img); |
ad483c008159
move birdview zoom indicator along with zoom drag
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diff
changeset
|
1719 za.addPosition(delta.neg()); |
795 | 1720 $data.trigger('dragZoom', [za]); |
705 | 1721 return false; |
1722 }; | |
710 | 1723 |
733 | 1724 // mouseup handler: reload zoomed image in new position |
705 | 1725 var dragEnd = function (evt) { |
739 | 1726 $scaler.css('cursor', 'auto'); |
917 | 1727 $document.off("mousemove.dlZoomDrag", dragMove); |
1728 $document.off("mouseup.dlZoomDrag", dragEnd); | |
733 | 1729 if (delta == null || delta.distance() < 2) { |
1730 // no movement | |
1731 $img.css('visibility', 'visible'); | |
741 | 1732 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
942 | 1733 data.hasPreviewBg = null; |
767 | 1734 // unhide marks |
1735 data.$elem.find('div.mark').show(); | |
813 | 1736 $(data).trigger('redisplay'); |
733 | 1737 return false; |
1738 } | |
1739 // get old zoom area (screen coordinates) | |
741 | 1740 var za = geom.rectangle($img); |
733 | 1741 // move |
741 | 1742 za.addPosition(delta.neg()); |
733 | 1743 // transform back |
1744 var newArea = data.imgTrafo.invtransform(za); | |
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1745 data.zoomArea = FULL_AREA.fit(newArea); |
708
120ace160386
img reload works for fullscreen, but somehow not precise
hertzhaft
parents:
707
diff
changeset
|
1746 redisplay(data); |
705 | 1747 return false; |
1748 }; | |
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1749 |
733 | 1750 // clear old handler |
917 | 1751 $document.off(".dlZoomDrag"); |
1752 $scaler.off(".dlZoomDrag"); | |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1753 if (! isFullArea(data.zoomArea)) { |
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1754 // set handler |
917 | 1755 $scaler.on("mousedown.dlZoomDrag", dragStart); |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1756 } |
705 | 1757 }; |
1758 | |
703 | 1759 // get image quality as a number (0..2) |
1760 var getQuality = function (data) { | |
1761 var flags = data.scalerFlags; | |
1762 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
1763 return parseInt(q[1], 10); | |
706 | 1764 }; |
703 | 1765 |
1766 // set image quality as a number (0..2) | |
1767 var setQuality = function (data, qual) { | |
1768 var flags = data.scalerFlags; | |
1769 // clear flags | |
1770 for (var i = 0; i < 3; ++i) { | |
1771 delete flags['q'+i]; | |
713
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more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1772 } |
703 | 1773 flags['q'+qual] = 'q'+qual; |
706 | 1774 }; |
710 | 1775 |
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1776 // get image scale mode (screen, pixel, size) |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1777 var getScaleMode = function (data) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1778 if (data.scalerFlags.clip != null) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1779 return 'pixel'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1780 } else if (data.scalerFlags.osize != null) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1781 return 'size'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1782 } |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1783 // mo=fit is default |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1784 return 'screen'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1785 }; |
775 | 1786 |
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1787 // set image scale mode (screen, pixel, size) |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1788 var setScaleMode = function (data, mode) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1789 delete data.scalerFlags.fit; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1790 delete data.scalerFlags.clip; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1791 delete data.scalerFlags.osize; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1792 if (mode === 'pixel') { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1793 data.scalerFlags.clip = 'clip'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1794 } else if (mode === 'size') { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1795 data.scalerFlags.osize = 'osize'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1796 } |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1797 // mo=fit is default |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1798 }; |
775 | 1799 |
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1800 // sets a key to a value (relative values with +/- if relative=true) |
650 | 1801 var setNumValue = function(settings, key, value) { |
716 | 1802 if (value == null) return null; |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1803 if (isNumber(value)) { |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1804 settings[key] = value; |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1805 return value; |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1806 } |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1807 var sign = value[0]; |
650 | 1808 if (sign === '+' || sign === '-') { |
1809 if (settings[key] == null) { | |
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1810 // this isn't perfect but still... |
650 | 1811 settings[key] = 0; |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1812 } |
650 | 1813 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
1814 } else { | |
1815 settings[key] = value; | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1816 } |
650 | 1817 return settings[key]; |
1818 }; | |
655 | 1819 |
775 | 1820 // auxiliary function, assuming equal border width on all sides |
1821 var getBorderWidth = function($elem) { | |
1822 var border = $elem.outerWidth() - $elem.width(); | |
1823 return border/2; | |
1824 }; | |
1825 | |
878 | 1826 // auxiliary function, can the current zoomarea be moved further? |
1827 var canMove = function(data, movx, movy) { | |
1828 var za = data.zoomArea; | |
1829 if (isFullArea(za)) return false; | |
1830 var x2 = za.x + za.width; | |
1831 var y2 = za.y + za.height; | |
1832 return ((movx < 0) && (za.x > 0)) | |
1833 || ((movx > 0) && (x2 < 1.0)) | |
1834 || ((movy < 0) && (za.y > 0)) | |
1835 || ((movy > 0) && (y2 < 1.0)) | |
1836 }; | |
1837 | |
655 | 1838 // auxiliary function (from old dllib.js) |
795 | 1839 var isFullArea = function (area) { |
659 | 1840 return (area.width === 1.0) && (area.height === 1.0); |
655 | 1841 }; |
1842 | |
641 | 1843 // auxiliary function (from Douglas Crockford, A.10) |
795 | 1844 var isNumber = function (value) { |
710 | 1845 return typeof value === 'number' && isFinite(value); |
641 | 1846 }; |
655 | 1847 |
631 | 1848 // auxiliary function to crop senseless precision |
1849 var cropFloat = function (x) { | |
637 | 1850 return parseInt(10000 * x, 10) / 10000; |
631 | 1851 }; |
655 | 1852 |
813 | 1853 // idem, string version |
1854 var cropFloatStr = function (x) { | |
1855 return cropFloat(x).toString(); | |
1856 }; | |
1857 | |
692 | 1858 // fallback for console.log calls |
1859 if (customConsole) { | |
1860 var logFunction = function(type) { | |
1861 return function(){ | |
1862 var $debug = $('#debug'); // debug div | |
1863 if (!$debug) return; | |
1864 var args = Array.prototype.slice.call(arguments); | |
1865 var argtext = args.join(' '); | |
1866 var $logDiv = $('<div/>'); | |
1867 $logDiv.addClass(type); | |
1868 $logDiv.text(argtext); | |
1869 $debug.append($logDiv); | |
1870 }; | |
1871 }; | |
1872 console.log = logFunction('_log'); | |
1873 console.debug = logFunction('_debug'); | |
1874 console.error = logFunction('_error'); | |
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more cosmetics: added options to validate with http://www.jslint.com
robcast
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diff
changeset
|
1875 } |
692 | 1876 |
787 | 1877 // functions to export to plugins |
1878 fn = { | |
791 | 1879 geometry : geom, |
787 | 1880 parseQueryString : parseQueryString, |
1881 getScalerUrl : getScalerUrl, | |
1882 getParamString : getParamString, | |
1883 getDigilibUrl : getDigilibUrl, | |
1884 unpackParams : unpackParams, | |
1885 packParams : packParams, | |
822 | 1886 packArea : packArea, |
1887 packMarks : packMarks, | |
1888 packScalerFlags : packScalerFlags, | |
795 | 1889 storeOptions : storeOptions, |
787 | 1890 redisplay : redisplay, |
1891 updateDisplay : updateDisplay, | |
795 | 1892 highlightButtons : highlightButtons, |
791 | 1893 showDiv : showDiv, |
929
e881ab1c2f47
first step to "preview" like zoom-drag for more operations
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diff
changeset
|
1894 setZoomBg : setZoomBg, |
787 | 1895 getImgTrafo : getImgTrafo, |
1896 getQuality : getQuality, | |
1897 setQuality : setQuality, | |
1898 getScaleMode : getScaleMode, | |
1899 setScaleMode : setScaleMode, | |
878 | 1900 canMove : canMove, |
795 | 1901 isFullArea : isFullArea, |
813 | 1902 isNumber : isNumber, |
1903 getBorderWidth : getBorderWidth, | |
1904 cropFloat : cropFloat, | |
1905 cropFloatStr : cropFloatStr | |
787 | 1906 }; |
788 | 1907 |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1908 // hook digilib plugin into jquery |
785 | 1909 $.fn.digilib = function (action) { |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1910 // plugin extension mechanism, called when the plugins' code is read |
786 | 1911 if (action === 'plugin') { |
1912 var plugin = arguments[1]; | |
1913 // each plugin needs a name | |
1914 if (plugin.name != null) { | |
1915 plugins[plugin.name] = plugin; | |
793
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1916 // share common objects |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1917 plugin.defaults = defaults; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
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diff
changeset
|
1918 plugin.buttons = buttons; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
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diff
changeset
|
1919 plugin.actions = actions; |
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diff
changeset
|
1920 plugin.fn = fn; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
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791
diff
changeset
|
1921 plugin.plugins = plugins; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
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|
1922 // and install |
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1923 if (typeof plugin.install === 'function') { |
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documentation for new plugin api in jquery-digilib-plugin.txt.
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1924 plugin.install(plugin); |
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1925 } |
786 | 1926 } |
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1927 // plugins will be initialised when action.init is called |
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primitive plugin extension mechanism - unsure how useful this is
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1928 } else if (actions[action]) { |
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1929 // call action on this with the remaining arguments (inserting data as first argument) |
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1930 var $elem = $(this); |
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1931 var data = $elem.data('digilib'); |
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1932 var args = Array.prototype.slice.call(arguments, 1); |
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1933 args.unshift(data); |
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1934 return actions[action].apply(this, args); |
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fullscreen mode works without reload on browsers supporting history.pushstate!
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1935 } else if (typeof action === 'object' || !action) { |
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1936 // call init on the digilib jQuery object |
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1937 return actions.init.apply(this, arguments); |
605 | 1938 } else { |
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1939 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
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1940 } |
605 | 1941 }; |
692 | 1942 |
604 | 1943 })(jQuery); |