Mercurial > hg > digilib-old
annotate webapp/src/main/webapp/jquery/jquery.digilib.js @ 914:1180d7a6aec1
added suppressParamNames for half-embedded mode.
author | robcast |
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date | Thu, 11 Aug 2011 15:27:09 +0200 |
parents | ad071f122164 |
children | ee3383f80cb0 |
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 2.0a1', |
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 } | |
744 | 367 // check digilib base URL |
368 if (elemSettings.digilibBaseUrl == null) { | |
369 if (isFullscreen) { | |
370 // take current host | |
371 var url = window.location.toString(); | |
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372 // assume the page lives in [webapp]/jquery/ |
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373 var pos = url.indexOf('jquery/'); |
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374 if (pos > 0) { |
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375 elemSettings.digilibBaseUrl = url.substring(0, pos); |
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376 } |
744 | 377 } else { |
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378 // may be we got the scaler URL from the img |
744 | 379 var url = elemSettings.scalerBaseUrl; |
380 if (url) { | |
381 // build it from scaler URL | |
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382 var pos = url.indexOf('/servlet/Scaler'); |
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383 elemSettings.digilibBaseUrl = url.substring(0, pos); |
744 | 384 } |
385 } | |
386 } | |
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387 // check scaler base URL |
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388 if (elemSettings.scalerBaseUrl == null) { |
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389 if (elemSettings.digilibBaseUrl) { |
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390 elemSettings.scalerBaseUrl = elemSettings.digilibBaseUrl + '/servlet/Scaler'; |
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391 } |
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392 } |
786 | 393 // initialise plugins |
787 | 394 for (n in plugins) { |
395 var p = plugins[n]; | |
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396 if (typeof p.init === 'function') { |
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397 p.init(data); |
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398 } |
786 | 399 } |
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400 // get image info from server if needed |
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401 if (data.scaleMode === 'pixel' || data.scaleMode === 'size') { |
797 | 402 $(data).bind('imageInfo', handleImageInfo); |
403 loadImageInfo(data); // triggers "imageInfo" on completion | |
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404 } |
779 | 405 // create buttons before scaler |
697 | 406 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { |
407 showButtons(data, true, i); | |
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408 } |
779 | 409 // create HTML structure for scaler, taking width of buttons div into account |
410 setupScalerDiv(data); | |
765 | 411 highlightButtons(data); |
668 | 412 // about window creation - TODO: could be deferred? restrict to only one item? |
413 setupAboutDiv(data); | |
856 | 414 // arrow overlays for moving zoomed detail |
415 setupZoomArrows(data); | |
795 | 416 // send setup event |
417 $(data).trigger('setup'); | |
668 | 418 }); |
419 }, | |
420 | |
421 // destroy: clean up digilib | |
422 destroy : function(data) { | |
423 return this.each(function(){ | |
424 var $elem = $(this); | |
425 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
426 data.digilib.remove(); | |
427 $elem.removeData('digilib'); | |
428 }); | |
429 }, | |
430 | |
431 // show or hide the 'about' window | |
432 showAboutDiv : function(data, show) { | |
765 | 433 var on = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); |
434 data.settings.isAboutDivVisible = on; | |
435 highlightButtons(data, 'help', on); | |
668 | 436 }, |
655 | 437 |
668 | 438 // goto given page nr (+/-: relative) |
439 gotoPage : function (data, pageNr) { | |
440 var settings = data.settings; | |
441 var oldpn = settings.pn; | |
716 | 442 if (pageNr == null) { |
443 pageNr = window.prompt("Goto page number", oldpn); | |
444 } | |
668 | 445 var pn = setNumValue(settings, "pn", pageNr); |
446 if (pn == null) return false; // nothing happened | |
447 if (pn < 1) { | |
448 alert("no such page (page number too low)"); | |
449 settings.pn = oldpn; | |
450 return false; | |
451 } | |
767 | 452 // TODO: how do we get pt? |
668 | 453 if (settings.pt) { |
454 if (pn > settings.pt) { | |
455 alert("no such page (page number too high)"); | |
623 | 456 settings.pn = oldpn; |
457 return false; | |
634 | 458 } |
668 | 459 } |
460 // reset mk and others(?) | |
461 data.marks = []; | |
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462 data.zoomArea = FULL_AREA; |
668 | 463 // then reload |
464 redisplay(data); | |
465 }, | |
654 | 466 |
668 | 467 // zoom by a given factor |
468 zoomBy : function (data, factor) { | |
469 zoomBy(data, factor); | |
470 }, | |
647 | 471 |
767 | 472 // zoom to area (or interactive) |
473 zoomArea : function (data, area) { | |
474 var settings = data.settings; | |
475 if (area == null) { | |
476 // interactively | |
477 zoomArea(data); | |
478 } else { | |
479 data.zoomArea = geom.rectangle(area); | |
480 redisplay(data); | |
481 } | |
668 | 482 }, |
650 | 483 |
668 | 484 // zoom out to full page |
485 zoomFull : function (data, mode) { | |
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486 data.zoomArea = FULL_AREA; |
668 | 487 if (mode === 'width') { |
488 data.dlOpts.fitwidth = 1; | |
489 delete data.dlOpts.fitheight; | |
490 } else if (mode === 'height') { | |
491 data.dlOpts.fitheight = 1; | |
492 delete data.dlOpts.fitwidth; | |
493 } else { | |
494 delete data.dlOpts.fitwidth; | |
495 delete data.dlOpts.fitheight; | |
496 } | |
497 redisplay(data); | |
498 }, | |
499 | |
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500 // move zoomed area |
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501 moveZoomArea : function (data, dx, dy) { |
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502 var za = data.zoomArea; |
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503 var factor = data.settings.zoomArrowMoveFactor; |
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504 var deltaX = dx * factor * za.width; |
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505 var deltaY = dy * factor * za.height; |
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506 za.addPosition(geom.position(deltaX, deltaY)); |
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507 data.zoomArea = FULL_AREA.fit(za); |
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508 redisplay(data); |
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509 }, |
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510 |
668 | 511 // set a mark by clicking (or giving a position) |
512 setMark : function (data, mpos) { | |
513 if (mpos == null) { | |
514 // interactive | |
515 setMark(data); | |
516 } else { | |
517 // use position | |
518 data.marks.push(pos); | |
663 | 519 redisplay(data); |
604 | 520 } |
668 | 521 }, |
522 | |
523 // remove the last mark | |
524 removeMark : function (data) { | |
525 data.marks.pop(); | |
526 redisplay(data); | |
527 }, | |
528 | |
529 // mirror the image | |
530 mirror : function (data, mode) { | |
531 var flags = data.scalerFlags; | |
532 if (mode === 'h') { | |
533 if (flags.hmir) { | |
534 delete flags.hmir; | |
535 } else { | |
536 flags.hmir = 1; | |
537 } | |
538 } else { | |
539 if (flags.vmir) { | |
540 delete flags.vmir; | |
541 } else { | |
542 flags.vmir = 1; | |
543 } | |
544 } | |
545 redisplay(data); | |
546 }, | |
650 | 547 |
668 | 548 // rotate the image |
549 rotate : function (data, angle) { | |
550 var rot = data.settings.rot; | |
551 if (angle == null) { | |
552 angle = window.prompt("Rotation angle:", rot); | |
553 } | |
554 data.settings.rot = angle; | |
555 redisplay(data); | |
556 }, | |
557 | |
558 // change brightness | |
559 brightness : function (data, factor) { | |
560 var brgt = data.settings.brgt; | |
561 if (factor == null) { | |
562 factor = window.prompt("Brightness (-255..255)", brgt); | |
563 } | |
564 data.settings.brgt = factor; | |
565 redisplay(data); | |
566 }, | |
567 | |
568 // change contrast | |
569 contrast : function (data, factor) { | |
570 var cont = data.settings.cont; | |
571 if (factor == null) { | |
572 factor = window.prompt("Contrast (-8, 8)", cont); | |
573 } | |
574 data.settings.cont = factor; | |
575 redisplay(data); | |
688 | 576 }, |
710 | 577 |
690 | 578 // display more (or less) button sets |
748 | 579 moreButtons : function (data, more) { |
696 | 580 var settings = data.settings; |
699 | 581 if (more == null) { |
703 | 582 // toggle more or less (only works for 2 sets) |
699 | 583 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
584 if (settings.visibleButtonSets >= maxbtns) { | |
585 more = '-1'; | |
586 } else { | |
587 more = '+1'; | |
588 } | |
589 } | |
690 | 590 if (more === '-1') { |
591 // remove set | |
697 | 592 var setIdx = settings.visibleButtonSets - 1; |
593 if (showButtons(data, false, setIdx, true)) { | |
594 settings.visibleButtonSets--; | |
595 } | |
690 | 596 } else { |
597 // add set | |
697 | 598 var setIdx = settings.visibleButtonSets; |
599 if (showButtons(data, true, setIdx, true)) { | |
600 settings.visibleButtonSets++; | |
690 | 601 } |
602 } | |
723 | 603 // persist setting |
604 storeOptions(data); | |
691 | 605 }, |
688 | 606 |
703 | 607 // reset image parameters to defaults |
688 | 608 reset : function (data) { |
609 var settings = data.settings; | |
610 var paramNames = settings.digilibParamNames; | |
611 var params = data.queryParams; | |
612 // delete all digilib parameters | |
613 for (var i = 0; i < paramNames.length; i++) { | |
614 var paramName = paramNames[i]; | |
615 delete settings[paramName]; | |
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616 } |
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617 settings.fn = params.fn || ''; // no default defined |
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618 settings.pn = params.pn || defaults.pn; |
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619 settings.dw = params.dw; |
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620 settings.dh = params.dh; |
709 | 621 settings.isBirdDivVisible = false; |
622 settings.visibleButtonSets = 1; | |
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623 // resets zoomArea, marks, scalerflags |
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624 data.zoomArea = FULL_AREA; |
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625 data.marks = []; |
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626 data.scalerFlags = {}; |
712 | 627 delete data.dlOpts.fitwidth; |
628 delete data.dlOpts.fitheight; | |
688 | 629 redisplay(data); |
689 | 630 }, |
631 | |
703 | 632 // presents a reference url (returns value if noprompt) |
633 reference : function (data, noprompt) { | |
689 | 634 var settings = data.settings; |
744 | 635 var url = getDigilibUrl(data); |
703 | 636 if (noprompt == null) { |
637 window.prompt("URL reference to the current view", url); | |
638 } | |
639 return url; | |
640 }, | |
710 | 641 |
703 | 642 // set image quality |
748 | 643 setQuality : function (data, qual) { |
703 | 644 var oldq = getQuality(data); |
645 if (qual == null) { | |
646 qual = window.prompt("Image quality (0..2)", oldq); | |
647 } | |
648 qual = parseInt(qual, 10); | |
649 if (qual >= 0 && qual <= 2) { | |
650 setQuality(data, qual); | |
651 redisplay(data); | |
652 } | |
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653 }, |
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654 |
754
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655 // calibrate (only faking) |
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656 calibrate : function (data, res) { |
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657 var oldRes = data.settings.ddpi; |
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658 if (res == null) { |
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659 res = window.prompt("Display resolution (dpi)", oldRes); |
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660 } |
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661 if (res != null) { |
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662 data.settings.ddpi = res; |
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663 redisplay(data); |
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664 } |
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665 }, |
775 | 666 |
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667 // set image scale mode |
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668 setScaleMode : function (data, mode) { |
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669 var oldM = getScaleMode(data); |
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670 if (mode == null) { |
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671 mode = window.prompt("Image scale mode (screen, pixel, size)", oldM); |
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672 } |
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673 if (mode != null) { |
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674 setScaleMode(data, mode); |
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675 data.scaleMode = mode; |
761
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676 redisplay(data); |
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677 } |
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678 } |
775 | 679 |
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680 // end of actions |
605 | 681 }; |
604 | 682 |
608 | 683 // returns parameters from page url |
607 | 684 var parseQueryParams = function() { |
636 | 685 return parseQueryString(window.location.search.slice(1)); |
686 }; | |
655 | 687 |
636 | 688 // returns parameters from embedded img-element |
607 | 689 var parseImgParams = function($elem) { |
613
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690 var src = $elem.find('img').first().attr('src'); |
710 | 691 if (!src) return null; |
607 | 692 var pos = src.indexOf('?'); |
693 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
694 var scalerUrl = src.substring(0, pos); | |
627 | 695 var params = parseQueryString(query); |
696 params.scalerBaseUrl = scalerUrl; | |
697 return params; | |
636 | 698 }; |
607 | 699 |
608 | 700 // parses query parameter string into parameter object |
607 | 701 var parseQueryString = function(query) { |
701 | 702 var params = {}; |
703 if (query == null) return params; | |
607 | 704 var pairs = query.split("&"); |
636 | 705 //var keys = []; |
607 | 706 for (var i = 0; i < pairs.length; i++) { |
707 var pair = pairs[i].split("="); | |
708 if (pair.length === 2) { | |
627 | 709 params[pair[0]] = pair[1]; |
636 | 710 //keys.push(pair[0]); |
634 | 711 } |
636 | 712 } |
627 | 713 return params; |
636 | 714 }; |
668 | 715 |
643 | 716 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
717 var getParamString = function (settings, keys, defaults) { | |
615 | 718 var paramString = ''; |
650 | 719 var nx = false; |
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720 for (var i = 0; i < keys.length; ++i) { |
615 | 721 var key = keys[i]; |
663 | 722 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 723 // first param gets no '&' |
650 | 724 if (nx) { |
725 paramString += '&'; | |
726 } else { | |
727 nx = true; | |
728 } | |
615 | 729 // add parm=val |
730 paramString += key + '=' + settings[key]; | |
643 | 731 } |
615 | 732 } |
733 return paramString; | |
631 | 734 }; |
735 | |
636 | 736 // returns URL and query string for Scaler |
737 var getScalerUrl = function (data) { | |
741 | 738 packParams(data); |
653 | 739 var settings = data.settings; |
652 | 740 if (settings.scalerBaseUrl == null) { |
741 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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742 } |
636 | 743 var keys = settings.scalerParamNames; |
643 | 744 var queryString = getParamString(settings, keys, defaults); |
636 | 745 var url = settings.scalerBaseUrl + '?' + queryString; |
746 return url; | |
747 }; | |
748 | |
741 | 749 // returns URL for bird's eye view image |
795 | 750 var getBgImgUrl = function (data, moreParams) { |
741 | 751 var settings = data.settings; |
795 | 752 var bgOptions = { |
753 dw : settings.bgImgWidth, | |
754 dh : settings.bgImgHeight | |
741 | 755 }; |
795 | 756 var bgSettings = $.extend({}, settings, bgOptions); |
757 // filter scaler flags | |
758 if (bgSettings.mo != null) { | |
759 var mo = ''; | |
760 if (data.scalerFlags.hmir != null) { | |
761 mo += 'hmir,'; | |
767 | 762 } |
795 | 763 if (data.scalerFlags.vmir != null) { |
764 mo += 'vmir'; | |
765 } | |
766 bgSettings.mo = mo; | |
743 | 767 } |
795 | 768 var params = getParamString(bgSettings, settings.bgImgParams, defaults); |
743 | 769 var url = settings.scalerBaseUrl + '?' + params; |
741 | 770 return url; |
771 }; | |
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772 |
636 | 773 // returns URL and query string for current digilib |
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774 var getDigilibUrl = function (data) { |
643 | 775 packParams(data); |
636 | 776 var settings = data.settings; |
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777 var paramList = settings.additionalParamNames.concat(settings.digilibParamNames); |
914 | 778 if (settings.suppressParamNames != null) { |
779 // eliminate suppressed parameters from list | |
780 paramList = $.map(paramList, function(e, idx) { | |
781 if ($.inArray(e, settings.suppressParamNames) >= 0) { | |
782 return null; | |
783 } else { | |
784 return e; | |
785 } | |
786 }); | |
787 } | |
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788 var queryString = getParamString(settings, paramList, defaults); |
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789 // take url from current location |
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790 var url = window.location.href; |
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791 var pos = url.indexOf('?'); |
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792 if (pos > -1) { |
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793 url = url.substring(0, pos); |
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794 } |
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795 return url + '?' + queryString; |
636 | 796 }; |
797 | |
797 | 798 // loads image information from digilib server via HTTP |
799 var loadImageInfo = function (data) { | |
754
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800 var settings = data.settings; |
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801 var p = settings.scalerBaseUrl.indexOf('/servlet/Scaler'); |
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802 var url = settings.scalerBaseUrl.substring(0, p) + '/ImgInfo-json.jsp'; |
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803 url += '?' + getParamString(settings, ['fn', 'pn'], defaults); |
767 | 804 // TODO: better error handling |
785 | 805 $.getJSON(url, function (json) { |
754
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806 console.debug("got json data=", json); |
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807 data.imgInfo = json; |
797 | 808 // send event |
809 $(data).trigger('imageInfo', [json]); | |
754
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810 }); |
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811 }; |
775 | 812 |
655 | 813 // processes some parameters into objects and stuff |
631 | 814 var unpackParams = function (data) { |
815 var settings = data.settings; | |
636 | 816 // zoom area |
631 | 817 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 818 data.zoomArea = zoomArea; |
636 | 819 // marks |
631 | 820 var marks = []; |
650 | 821 if (settings.mk) { |
822 var mk = settings.mk; | |
823 if (mk.indexOf(";") >= 0) { | |
824 var pa = mk.split(";"); // old format with ";" | |
825 } else { | |
826 var pa = mk.split(","); // new format | |
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827 } |
650 | 828 for (var i = 0; i < pa.length ; i++) { |
829 var pos = pa[i].split("/"); | |
830 if (pos.length > 1) { | |
831 marks.push(geom.position(pos[0], pos[1])); | |
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832 } |
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833 } |
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834 } |
643 | 835 data.marks = marks; |
650 | 836 // mo (Scaler flags) |
837 var flags = {}; | |
838 if (settings.mo) { | |
839 var pa = settings.mo.split(","); | |
840 for (var i = 0; i < pa.length ; i++) { | |
841 flags[pa[i]] = pa[i]; | |
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842 } |
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843 } |
650 | 844 data.scalerFlags = flags; |
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845 data.scaleMode = getScaleMode(data); |
723 | 846 retrieveOptions(data); |
655 | 847 }; |
848 | |
822 | 849 // put area into parameters |
850 var packArea = function (settings, area) { | |
851 if (!area) return; | |
852 // zoom area | |
853 settings.wx = cropFloat(area.x); | |
854 settings.wy = cropFloat(area.y); | |
855 settings.ww = cropFloat(area.width); | |
856 settings.wh = cropFloat(area.height); | |
857 }; | |
858 | |
859 // put marks into parameters | |
860 var packMarks = function (settings, marks) { | |
861 if (!marks) return; | |
862 settings.mk = ''; | |
863 for (var i = 0; i < marks.length; i++) { | |
864 if (i) { | |
865 settings.mk += ','; | |
866 } | |
867 settings.mk += | |
868 cropFloatStr(marks[i].x) + '/' + | |
869 cropFloatStr(marks[i].y); | |
870 } | |
871 }; | |
872 | |
873 // pack scaler flags into parameters | |
874 var packScalerFlags = function (settings, flags) { | |
875 if (!flags) return; | |
876 var mo = ''; | |
877 for (var f in flags) { | |
878 if (mo) { | |
879 mo += ','; | |
880 } | |
881 mo += f; | |
882 } | |
883 settings.mo = mo; | |
884 }; | |
885 | |
631 | 886 // put objects back into parameters |
887 var packParams = function (data) { | |
888 var settings = data.settings; | |
822 | 889 packArea(settings, data.zoomArea); |
890 packMarks(settings, data.marks); | |
891 packScalerFlags(settings, data.scalerFlags); | |
892 // store user interface options in cookie | |
723 | 893 storeOptions(data); |
709 | 894 }; |
688 | 895 |
723 | 896 var storeOptions = function (data) { |
701 | 897 // save digilib options in cookie |
709 | 898 var settings = data.settings; |
899 if (data.dlOpts) { | |
900 // save digilib settings in options | |
901 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
902 data.dlOpts.buttons = settings.visibleButtonSets; | |
903 var clop = ''; | |
904 for (var o in data.dlOpts) { | |
905 if (clop) { | |
906 clop += '&'; | |
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907 } |
709 | 908 clop += o + '=' + data.dlOpts[o]; |
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909 } |
785 | 910 if ($.cookie) { |
709 | 911 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; |
912 console.debug("set cookie=", ck, " value=", clop); | |
785 | 913 $.cookie(ck, clop); |
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914 } |
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915 } |
785 | 916 if (settings.interactionMode !== 'fullscreen' && $.cookie) { |
727 | 917 // store normal parameters in cookie for embedded mode |
918 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
919 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
920 console.debug("set cookie=", ck, " value=", qs); | |
785 | 921 $.cookie(ck, qs); |
727 | 922 } |
631 | 923 }; |
655 | 924 |
723 | 925 var retrieveOptions = function (data) { |
709 | 926 // clop (digilib options) |
927 var opts = {}; | |
928 var settings = data.settings; | |
785 | 929 if ($.cookie) { |
709 | 930 // read from cookie |
931 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
785 | 932 var cp = $.cookie(ck); |
709 | 933 console.debug("get cookie=", ck, " value=", cp); |
934 // in query string format | |
935 opts = parseQueryString(cp); | |
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936 } |
709 | 937 data.dlOpts = opts; |
938 // birdview option | |
939 if (opts.birdview != null) { | |
940 settings.isBirdDivVisible = opts.birdview === '1'; | |
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941 } |
709 | 942 // visible button sets |
943 if (opts.buttons != null) { | |
944 settings.visibleButtonSets = opts.buttons; | |
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945 } |
711 | 946 }; |
709 | 947 |
622 | 948 // (re)load the img from a new scaler URL |
644
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949 var redisplay = function (data) { |
636 | 950 var settings = data.settings; |
951 if (settings.interactionMode === 'fullscreen') { | |
952 // update location.href (browser URL) in fullscreen mode | |
644
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953 var url = getDigilibUrl(data); |
636 | 954 var history = window.history; |
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955 if (typeof history.replaceState === 'function') { |
798
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956 console.debug("faking reload to "+url); |
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957 // change url without reloading (stateObj, title, url) |
890
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958 // TODO: we really need to push the state in stateObj and listen to pop-events |
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959 try { |
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960 history.replaceState({}, '', url); |
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961 // change img src |
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962 var imgurl = getScalerUrl(data); |
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963 data.$img.attr('src', imgurl); |
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964 highlightButtons(data); |
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965 // send event |
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966 $(data).trigger('redisplay'); |
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967 } catch (e) { |
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968 console.error("replaceState("+url+") didn't work: "+e); |
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969 // reload window |
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970 window.location = url; |
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971 } |
798
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972 } else { |
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973 // reload window |
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974 window.location = url; |
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975 } |
636 | 976 } else { |
977 // embedded mode -- just change img src | |
978 var url = getScalerUrl(data); | |
979 data.$img.attr('src', url); | |
765 | 980 highlightButtons(data); |
795 | 981 // send event |
982 $(data).trigger('redisplay'); | |
913
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983 } |
622 | 984 }; |
985 | |
767 | 986 // update display (overlays etc.) |
987 var updateDisplay = function (data) { | |
988 updateImgTrafo(data); | |
989 renderMarks(data); | |
990 setupZoomDrag(data); | |
862 | 991 renderZoomArrows(data); |
784 | 992 // send event |
993 $(data).trigger('update'); | |
767 | 994 }; |
775 | 995 |
662 | 996 // returns maximum size for scaler img in fullscreen mode |
778 | 997 var getFullscreenImgSize = function (data) { |
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998 var mode = data.settings.interactionMode; |
662 | 999 var $win = $(window); |
1000 var winH = $win.height(); | |
779 | 1001 var winW = $win.width(); |
1002 var $body = $('body'); | |
886
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1003 // include standard body margins and check plausibility |
780 | 1004 var borderW = $body.outerWidth(true) - $body.width(); |
886
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1005 if (borderW === 0 || borderW > 100) { |
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1006 console.debug("fixing border width for getFullscreenImgSize!"); |
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1007 borderW = data.settings.scalerInset; |
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1008 } |
780 | 1009 var borderH = $body.outerHeight(true) - $body.height(); |
886
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1010 if (borderH === 0 || borderH > 100) { |
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1011 console.debug("fixing border height for getFullscreenImgSize!"); |
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1012 borderH = 5; |
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1013 } |
779 | 1014 var buttonsW = 0; |
886
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1015 if (data.settings.visibleButtonSets) { |
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1016 // get button width from settings |
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1017 buttonsW = data.settings.buttonSettings[mode].buttonSetWidth; |
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1018 // TODO: leave space for all button sets? |
779 | 1019 } |
1020 // account for left/right border, body margins and additional requirements | |
886
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1021 var imgW = winW - borderW - buttonsW; |
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1022 var imgH = winH - borderH; |
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1023 console.debug(winW, winH, 'winW:', $win.width(), 'border:', borderW, 'buttonsW:', buttonsW, 'calc:', imgW); |
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1024 return geom.size(imgW, imgH); |
662 | 1025 }; |
1026 | |
608 | 1027 // creates HTML structure for digilib in elem |
627 | 1028 var setupScalerDiv = function (data) { |
1029 var settings = data.settings; | |
647 | 1030 var $elem = data.$elem; |
725 | 1031 $elem.addClass('digilib'); |
728 | 1032 var $img; |
1033 var scalerUrl; | |
608 | 1034 if (settings.interactionMode === 'fullscreen') { |
728 | 1035 // fullscreen |
725 | 1036 $elem.addClass('dl_fullscreen'); |
778 | 1037 var imgSize = getFullscreenImgSize(data); |
650 | 1038 // fitwidth/height omits destination height/width |
728 | 1039 if (data.dlOpts.fitheight == null) { |
650 | 1040 settings.dw = imgSize.width; |
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1041 } |
728 | 1042 if (data.dlOpts.fitwidth == null) { |
650 | 1043 settings.dh = imgSize.height; |
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1044 } |
686 | 1045 scalerUrl = getScalerUrl(data); |
728 | 1046 $img = $('<img/>'); |
609 | 1047 } else { |
728 | 1048 // embedded mode -- try to keep img tag |
725 | 1049 $elem.addClass('dl_embedded'); |
728 | 1050 scalerUrl = getScalerUrl(data); |
623 | 1051 $img = $elem.find('img'); |
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1052 if ($img.length > 0) { |
870
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1053 var oldUrl = $img.attr('src'); |
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1054 // keep img attributes from html |
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1055 var title = $img.attr('title'); |
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1056 var alt = $img.attr('alt'); |
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1057 if (oldUrl === scalerUrl) { |
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1058 console.debug("img detach:", $img); |
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1059 $img.detach(); |
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1060 } else { |
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1061 $img = $('<img/>'); |
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1062 $img.attr("title", title); |
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1063 $img.attr("alt", alt); |
728 | 1064 } |
613
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1065 } else { |
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1066 $img = $('<img/>'); |
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1067 } |
608 | 1068 } |
822 | 1069 // create new inner html, keeping buttons and content marked with "keep" class |
1070 $elem.contents(":not(.keep)").remove(); | |
613
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1071 var $scaler = $('<div class="scaler"/>'); |
779 | 1072 // scaler should be the first child element? |
1073 $elem.prepend($scaler); | |
613
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1074 $scaler.append($img); |
622 | 1075 $img.addClass('pic'); |
649 | 1076 data.$scaler = $scaler; |
636 | 1077 data.$img = $img; |
687 | 1078 // setup image load handler before setting the src attribute (IE bug) |
1079 $img.load(scalerImgLoadedHandler(data)); | |
767 | 1080 $img.error(function () {console.error("error loading scaler image");}); |
687 | 1081 $img.attr('src', scalerUrl); |
608 | 1082 }; |
615 | 1083 |
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1084 // creates HTML structure for a single button |
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1085 var createButton = function (data, $div, buttonName) { |
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1086 var $elem = data.$elem; |
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1087 var settings = data.settings; |
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1088 var mode = settings.interactionMode; |
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1089 var imagePath = settings.buttonSettings[mode].imagePath; |
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1090 // make relative imagePath absolute |
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1091 if (imagePath.charAt(0) !== '/' && imagePath.substring(0,3) !== 'http') { |
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1092 imagePath = settings.digilibBaseUrl + '/jquery/' + imagePath; |
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1093 } |
876
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1094 var buttonConfig = settings.buttons[buttonName]; |
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1095 // button properties |
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1096 var action = buttonConfig.onclick; |
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1097 var tooltip = buttonConfig.tooltip; |
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1098 var icon = imagePath + buttonConfig.icon; |
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1099 // construct the button html |
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1100 var $button = $('<div class="button"></div>'); |
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1101 var $a = $('<a/>'); |
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1102 var $img = $('<img class="button"/>'); |
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1103 $div.append($button); |
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1104 $button.append($a); |
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1105 $a.append($img); |
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1106 // add attributes and bindings |
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1107 $button.attr('title', tooltip); |
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1108 $button.addClass('button-' + buttonName); |
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1109 $img.attr('src', icon); |
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1110 // create handler for the buttons |
877 | 1111 $button.bind('click.digilib', (function () { |
876
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1112 // we create a new closure to capture the value of action |
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1113 if ($.isArray(action)) { |
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1114 // the handler function calls digilib with action and parameters |
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1115 return function (evt) { |
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1116 console.debug('click action=', action, ' evt=', evt); |
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1117 $elem.digilib.apply($elem, action); |
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1118 return false; |
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1119 }; |
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1120 } else { |
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1121 // the handler function calls digilib with action |
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1122 return function (evt) { |
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1123 console.debug('click action=', action, ' evt=', evt); |
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1124 $elem.digilib(action); |
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1125 return false; |
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1126 }; |
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1127 } |
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1128 })()); |
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1129 }; |
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1130 |
610 | 1131 // creates HTML structure for buttons in elem |
697 | 1132 var createButtons = function (data, buttonSetIdx) { |
647 | 1133 var $elem = data.$elem; |
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1134 var settings = data.settings; |
665 | 1135 var mode = settings.interactionMode; |
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1136 var buttonSettings = settings.buttonSettings[mode]; |
682 | 1137 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
690 | 1138 if (buttonGroup == null) { |
1139 // no buttons here | |
1140 return; | |
1141 } | |
822 | 1142 // button divs are marked with class "keep" |
1143 var $buttonsDiv = $('<div class="keep buttons"/>'); | |
682 | 1144 var buttonNames = buttonSettings[buttonGroup]; |
1145 for (var i = 0; i < buttonNames.length; i++) { | |
1146 var buttonName = buttonNames[i]; | |
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1147 createButton(data, $buttonsDiv, buttonName); |
690 | 1148 } |
662 | 1149 // make buttons div scroll if too large for window |
1150 if ($buttonsDiv.height() > $(window).height() - 10) { | |
1151 $buttonsDiv.css('position', 'absolute'); | |
1152 } | |
697 | 1153 // buttons hidden at first |
1154 $buttonsDiv.hide(); | |
1155 $elem.append($buttonsDiv); | |
682 | 1156 if (data.$buttonSets == null) { |
697 | 1157 // first button set |
682 | 1158 data.$buttonSets = [$buttonsDiv]; |
1159 } else { | |
690 | 1160 $elem.append($buttonsDiv); |
682 | 1161 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
1162 } | |
612 | 1163 return $buttonsDiv; |
610 | 1164 }; |
615 | 1165 |
856 | 1166 // creates arrow overlays for moving the zoomed area |
1167 var setupZoomArrows = function (data) { | |
1168 var $elem = data.$elem; | |
1169 var settings = data.settings; | |
877 | 1170 var show = settings.showZoomArrows; |
856 | 1171 console.log('zoom arrows:', show); |
1172 if (!show) return; | |
877 | 1173 var mode = settings.interactionMode; |
1174 var arrowNames = settings.buttonSettings[mode].arrowSet; | |
879 | 1175 if (arrowNames == null) return; |
877 | 1176 // arrow divs are marked with class "keep" |
1177 var $arrowsDiv = $('<div class="keep arrows"/>'); | |
1178 $elem.append($arrowsDiv); | |
1179 // create all arrow buttons | |
1180 $.each(arrowNames, function(i, arrowName){ | |
1181 createButton(data, $arrowsDiv, arrowName); | |
1182 }); | |
856 | 1183 }; |
1184 | |
862 | 1185 // size and show arrow overlays, called after scaler img is loaded |
1186 var renderZoomArrows = function (data) { | |
877 | 1187 var settings = data.settings; |
1188 var $arrowsDiv = data.$elem.find('div.arrows'); | |
879 | 1189 if (isFullArea(data.zoomArea) || !settings.showZoomArrows) { |
1190 $arrowsDiv.hide(); | |
1191 return; | |
1192 } | |
1193 $arrowsDiv.show(); | |
877 | 1194 var r = geom.rectangle(data.$scaler); |
1195 // calculate arrow bar width | |
1196 var aw = settings.zoomArrowWidth; | |
1197 var minWidth = settings.zoomArrowMinWidth; | |
1198 // arrow bar width should not exceed 10% of scaler width/height | |
1199 var maxWidth = Math.min(r.width, r.height)/10; | |
1200 if (aw > maxWidth) { | |
1201 aw = maxWidth; | |
1202 if (aw < minWidth) { | |
1203 aw = minWidth; | |
1204 } | |
1205 } | |
879 | 1206 // vertical position of left/right image |
878 | 1207 var arrowData = [{ |
1208 name : 'up', | |
1209 rect : geom.rectangle(r.x, r.y, r.width, aw), | |
1210 show : canMove(data, 0, -1) | |
1211 }, { | |
1212 name : 'down', | |
879 | 1213 rect : geom.rectangle(r.x, r.y + r.height - aw, r.width, aw), |
878 | 1214 show : canMove(data, 0, 1) |
1215 }, { | |
1216 name : 'left', | |
1217 rect : geom.rectangle(r.x, r.y, aw, r.height), | |
884 | 1218 show : canMove(data, -1, 0) |
878 | 1219 }, { |
1220 name : 'right', | |
1221 rect : geom.rectangle(r.x + r.width - aw, r.y, aw, r.height), | |
1222 show : canMove(data, 1, 0) | |
1223 }]; | |
1224 // render a single zoom Arrow | |
1225 var render = function (i, item) { | |
1226 var $arrow = $arrowsDiv.find('div.button-' + item.name); | |
1227 if (item.show) { | |
1228 $arrow.show(); | |
1229 } else { | |
1230 $arrow.hide(); | |
879 | 1231 return; |
878 | 1232 } |
879 | 1233 var r = item.rect; |
1234 r.adjustDiv($arrow); | |
1235 var $a = $arrow.contents('a'); | |
1236 var $img = $a.contents('img'); | |
1237 $img.width(aw).height(aw); | |
1238 // hack for missing vertical-align | |
1239 if (item.name.match(/left|right/)) { | |
1240 var top = (r.height - $a.height())/2; | |
1241 $a.css({'top' : top}); // position : 'relative' | |
1242 } | |
878 | 1243 }; |
1244 $.each(arrowData, render); | |
862 | 1245 }; |
1246 | |
625 | 1247 // creates HTML structure for the about view in elem |
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1248 var setupAboutDiv = function (data) { |
647 | 1249 var $elem = data.$elem; |
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1250 var settings = data.settings; |
625 | 1251 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
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1252 var $header = $('<p>Digilib Image Viewer</p>'); |
616 | 1253 var $link = $('<a/>'); |
1254 var $logo = $('<img class="logo" title="digilib"/>'); | |
1255 var $content = $('<p/>'); | |
1256 $elem.append($aboutDiv); | |
1257 $aboutDiv.append($header); | |
1258 $aboutDiv.append($link); | |
1259 $aboutDiv.append($content); | |
1260 $link.append($logo); | |
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1261 logoUrl = settings.logoUrl; |
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1262 // make relative logoUrl absolute |
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1263 if (logoUrl.charAt(0) !== '/' && logoUrl.substring(0,3) !== 'http') { |
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1264 logoUrl = settings.digilibBaseUrl + '/' + logoUrl; |
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1265 } |
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1266 $logo.attr('src', logoUrl); |
635 | 1267 $link.attr('href', settings.homeUrl); |
616 | 1268 $content.text('Version: ' + settings.version); |
775 | 1269 data.$aboutDiv = $aboutDiv; |
635 | 1270 // click hides |
775 | 1271 $aboutDiv.bind('click.digilib', function () { |
1272 actions['showAboutDiv'](data, false); | |
710 | 1273 }); |
634 | 1274 }; |
1275 | |
635 | 1276 // shows some window e.g. 'about' (toggle visibility if show is null) |
1277 var showDiv = function (isVisible, $div, show) { | |
645 | 1278 if (show == null) { |
635 | 1279 // toggle visibility |
1280 isVisible = !isVisible; | |
1281 } else { | |
1282 // set visibility | |
1283 isVisible = show; | |
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1284 } |
635 | 1285 if (isVisible) { |
1286 $div.fadeIn(); | |
1287 } else { | |
1288 $div.fadeOut(); | |
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1289 } |
635 | 1290 return isVisible; |
634 | 1291 }; |
616 | 1292 |
697 | 1293 // display more (or less) button sets |
1294 var showButtons = function (data, more, setIdx, animated) { | |
711 | 1295 var atime = animated ? 'fast': 0; |
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1296 // get button width from settings |
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1297 var mode = data.settings.interactionMode; |
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1298 var btnWidth = data.settings.buttonSettings[mode].buttonSetWidth; |
697 | 1299 if (more) { |
1300 // add set | |
1301 var $otherSets = data.$elem.find('div.buttons:visible'); | |
1302 var $set; | |
1303 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
1304 // set exists | |
1305 $set = data.$buttonSets[setIdx]; | |
1306 } else { | |
1307 $set = createButtons(data, setIdx); | |
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1308 } |
697 | 1309 if ($set == null) return false; |
765 | 1310 // include border in calculation |
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1311 //var btnWidth = $set.outerWidth(); |
779 | 1312 // console.debug("btnWidth", btnWidth); |
697 | 1313 // move remaining sets left and show new set |
711 | 1314 if ($otherSets.length > 0) { |
1315 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
1316 function () {$set.show();}); | |
697 | 1317 } else { |
1318 $set.show(); | |
711 | 1319 } |
697 | 1320 } else { |
1321 // remove set | |
1322 var $set = data.$buttonSets[setIdx]; | |
1323 if ($set == null) return false; | |
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1324 //var btnWidth = $set.outerWidth(); |
697 | 1325 // hide last set |
1326 $set.hide(); | |
1327 // take remaining sets and move right | |
1328 var $otherSets = data.$elem.find('div.buttons:visible'); | |
711 | 1329 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
1330 } | |
697 | 1331 return true; |
1332 }; | |
1333 | |
765 | 1334 // check for buttons to highlight |
1335 var highlightButtons = function (data, name, on) { | |
1336 var $buttons = data.$elem.find('div.buttons:visible'); // include hidden? | |
1337 // add a class for highlighted button | |
1338 var highlight = function (name, on) { | |
1339 var $button = $buttons.find('div.button-' + name); | |
1340 if (on) { | |
1341 $button.addClass('button-on'); | |
1342 } else { | |
1343 $button.removeClass('button-on'); | |
1344 } | |
1345 }; | |
1346 if (name != null) { | |
1347 return highlight(name, on); | |
1348 } | |
1349 var flags = data.scalerFlags; | |
1350 var settings = data.settings; | |
1351 highlight('rot', settings.rot); | |
1352 highlight('brgt', settings.brgt); | |
1353 highlight('cont', settings.cont); | |
1354 highlight('bird', settings.isBirdDivVisible); | |
1355 highlight('help', settings.isAboutDivVisible); | |
1356 highlight('hmir', flags.hmir); | |
1357 highlight('vmir', flags.vmir); | |
766 | 1358 highlight('quality', flags.q1 || flags.q2); |
765 | 1359 highlight('zoomin', ! isFullArea(data.zoomArea)); |
1360 }; | |
775 | 1361 |
658
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|
1362 // create Transform from area and $img |
772
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original size mode works with zoom area now. needs error handling.
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diff
changeset
|
1363 var getImgTrafo = function ($img, area, rot, hmir, vmir, mode, data) { |
658
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changeset
|
1364 var picrect = geom.rectangle($img); |
763
31664707999e
pixel-by-pixel scale mode works with zoom area. (not in all cases)
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diff
changeset
|
1365 if (mode != null) { |
772
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original size mode works with zoom area now. needs error handling.
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changeset
|
1366 var imgInfo = data.imgInfo; |
763
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changeset
|
1367 if (mode === 'pixel') { |
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diff
changeset
|
1368 // scaler mo=clip - image area size does not come from ww, wh |
31664707999e
pixel-by-pixel scale mode works with zoom area. (not in all cases)
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diff
changeset
|
1369 if (imgInfo != null) { |
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|
1370 area.width = picrect.width / imgInfo.width; |
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pixel-by-pixel scale mode works with zoom area. (not in all cases)
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diff
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|
1371 area.height = picrect.height / imgInfo.height; |
31664707999e
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diff
changeset
|
1372 } else { |
31664707999e
pixel-by-pixel scale mode works with zoom area. (not in all cases)
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diff
changeset
|
1373 console.error("No image info for pixel mode!"); |
31664707999e
pixel-by-pixel scale mode works with zoom area. (not in all cases)
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|
1374 } |
31664707999e
pixel-by-pixel scale mode works with zoom area. (not in all cases)
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diff
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|
1375 } |
772
33b5477f8d84
original size mode works with zoom area now. needs error handling.
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changeset
|
1376 if (mode === 'size') { |
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original size mode works with zoom area now. needs error handling.
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|
1377 // scaler mo=osize - image area size does not come from ww, wh |
33b5477f8d84
original size mode works with zoom area now. needs error handling.
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|
1378 if (imgInfo != null) { |
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|
1379 var ddpi = parseFloat(data.settings.ddpi); |
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|
1380 area.width = (picrect.width / ddpi) / (imgInfo.width / imgInfo.dpi_x); |
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|
1381 area.height = (picrect.height / ddpi) / (imgInfo.height / imgInfo.dpi_y); |
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|
1382 } else { |
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original size mode works with zoom area now. needs error handling.
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|
1383 console.error("No image info for original size mode!"); |
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original size mode works with zoom area now. needs error handling.
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changeset
|
1384 } |
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original size mode works with zoom area now. needs error handling.
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|
1385 } |
763
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pixel-by-pixel scale mode works with zoom area. (not in all cases)
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|
1386 } |
658
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changeset
|
1387 var trafo = geom.transform(); |
675 | 1388 // move zoom area offset to center |
658
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changeset
|
1389 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
675 | 1390 // scale zoom area size to [1,1] |
658
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|
1391 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
675 | 1392 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
1393 if (rot || hmir || vmir) { | |
1394 // move [0.5,0.5] to center | |
1395 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
1396 if (hmir) { | |
1397 // mirror about center | |
1398 trafo.concat(trafo.getMirror('y')); | |
713
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|
1399 } |
675 | 1400 if (vmir) { |
1401 // mirror about center | |
1402 trafo.concat(trafo.getMirror('x')); | |
713
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|
1403 } |
675 | 1404 if (rot) { |
1405 // rotate around center | |
1406 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
713
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|
1407 } |
675 | 1408 // move back |
1409 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
713
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|
1410 } |
664
d5a5ee4cbf04
work on getting transformation to work with rotation (currently still doesn't)
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diff
changeset
|
1411 // scale to screen position and size |
658
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changeset
|
1412 trafo.concat(trafo.getScale(picrect)); |
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diff
changeset
|
1413 trafo.concat(trafo.getTranslation(picrect)); |
9ddcf0070122
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|
1414 return trafo; |
655 | 1415 }; |
678
d50d24b7fd95
first step at dragging birdview zoom indicator around
hertzhaft
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diff
changeset
|
1416 |
767 | 1417 // update scaler image transform |
1418 var updateImgTrafo = function (data) { | |
1419 var $img = data.$img; | |
895 | 1420 if ($img == null) |
1421 return; | |
1422 var image = $img.get(0); | |
1423 var imgLoaded = $.browser.msie | |
1424 ? image.width > 0 | |
1425 : image.complete; | |
1426 if (imgLoaded) { | |
760
f0be4432f515
primitive plugin extension mechanism - unsure how useful this is
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diff
changeset
|
1427 // create Transform from current zoomArea and image size |
675 | 1428 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
763
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changeset
|
1429 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir, |
772
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changeset
|
1430 data.scaleMode, data); |
760
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primitive plugin extension mechanism - unsure how useful this is
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changeset
|
1431 // console.debug("imgTrafo=", data.imgTrafo); |
767 | 1432 } |
1433 }; | |
775 | 1434 |
797 | 1435 // returns handler for load event of scaler img |
767 | 1436 var scalerImgLoadedHandler = function (data) { |
1437 return function () { | |
1438 var $img = $(this); | |
1439 console.debug("scaler img loaded=",$img); | |
1440 var $scaler = data.$scaler; | |
760
f0be4432f515
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diff
changeset
|
1441 var imgRect = geom.rectangle($img); |
733 | 1442 // adjust scaler div size |
738 | 1443 imgRect.adjustDiv($scaler); |
715 | 1444 // show image in case it was hidden (for example in zoomDrag) |
733 | 1445 $img.css('visibility', 'visible'); |
741 | 1446 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
767 | 1447 // update display (render marks, etc.) |
1448 updateDisplay(data); | |
658
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split bird's view code in two more parts, analog to scaler-img code.
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changeset
|
1449 }; |
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split bird's view code in two more parts, analog to scaler-img code.
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diff
changeset
|
1450 }; |
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split bird's view code in two more parts, analog to scaler-img code.
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changeset
|
1451 |
797 | 1452 // handler for imageInfo loaded event |
1453 var handleImageInfo = function (evt, json) { | |
1454 var data = this; | |
1455 updateDisplay(data); | |
1456 }; | |
813 | 1457 |
633 | 1458 // place marks on the image |
1459 var renderMarks = function (data) { | |
767 | 1460 if (data.$img == null || data.imgTrafo == null) return; |
850
47a6b93bde43
always show html-defined regions. wrong pos still not fixed
hertzhaft
parents:
849
diff
changeset
|
1461 console.debug("renderMarks: img=",data.$img," imgtrafo=",data.imgTrafo); |
647 | 1462 var $elem = data.$elem; |
643 | 1463 var marks = data.marks; |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1464 // clear marks |
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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741
diff
changeset
|
1465 $elem.find('div.mark').remove(); |
633 | 1466 for (var i = 0; i < marks.length; i++) { |
1467 var mark = marks[i]; | |
643 | 1468 if (data.zoomArea.containsPosition(mark)) { |
633 | 1469 var mpos = data.imgTrafo.transform(mark); |
851 | 1470 console.debug("renderMarks: pos=",mpos); |
633 | 1471 // create mark |
813 | 1472 var html = '<div class="mark overlay">'+(i+1)+'</div>'; |
633 | 1473 var $mark = $(html); |
850
47a6b93bde43
always show html-defined regions. wrong pos still not fixed
hertzhaft
parents:
849
diff
changeset
|
1474 $mark.attr("id", "digilib-mark-"+(i+1)); |
633 | 1475 $elem.append($mark); |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1476 mpos.adjustDiv($mark); |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
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diff
changeset
|
1477 } |
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more cosmetics: added options to validate with http://www.jslint.com
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diff
changeset
|
1478 } |
633 | 1479 }; |
655 | 1480 |
647 | 1481 // zooms by the given factor |
643 | 1482 var zoomBy = function(data, factor) { |
1483 var area = data.zoomArea; | |
1484 var newarea = area.copy(); | |
1485 // scale | |
1486 newarea.width /= factor; | |
1487 newarea.height /= factor; | |
1488 // and recenter | |
1489 newarea.x -= 0.5 * (newarea.width - area.width); | |
1490 newarea.y -= 0.5 * (newarea.height - area.height); | |
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1491 newarea = FULL_AREA.fit(newarea); |
643 | 1492 data.zoomArea = newarea; |
644
ee8ccd84c5f8
reload doesn't take list of changed parameters any more
robcast
parents:
643
diff
changeset
|
1493 redisplay(data); |
643 | 1494 }; |
1495 | |
647 | 1496 // add a mark where clicked |
1497 var setMark = function (data) { | |
649 | 1498 var $scaler = data.$scaler; |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1499 // unbind other handler |
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1500 $scaler.unbind(".dlZoomDrag"); |
647 | 1501 // start event capturing |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1502 $scaler.one('mousedown.dlSetMark', function (evt) { |
647 | 1503 // event handler adding a new mark |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1504 console.log("setmark at=", evt); |
672
7f7536a5b6d9
image transform works now under rotation!!! (at least for multiples of 90deg)
robcast
parents:
671
diff
changeset
|
1505 var mpos = geom.position(evt); |
647 | 1506 var pos = data.imgTrafo.invtransform(mpos); |
1507 data.marks.push(pos); | |
1508 redisplay(data); | |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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741
diff
changeset
|
1509 return false; |
647 | 1510 }); |
1511 }; | |
668 | 1512 |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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diff
changeset
|
1513 // zoom to the area around two clicked points |
654 | 1514 var zoomArea = function(data) { |
1515 $elem = data.$elem; | |
1516 $scaler = data.$scaler; | |
1517 var pt1, pt2; | |
1518 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
1519 $elem.append($zoomDiv); | |
775 | 1520 // $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 1521 var picRect = geom.rectangle($scaler); |
1522 // FIX ME: is there a way to query the border width from CSS info? | |
1523 // rect.x -= 2; // account for overlay borders | |
1524 // rect.y -= 2; | |
1525 | |
1526 var zoomStart = function (evt) { | |
1527 pt1 = geom.position(evt); | |
1528 // setup and show zoom div | |
738 | 1529 pt1.adjustDiv($zoomDiv); |
668 | 1530 $zoomDiv.width(0).height(0); |
654 | 1531 $zoomDiv.show(); |
1532 // register events | |
738 | 1533 $elem.bind("mousemove.dlZoomArea", zoomMove); |
1534 $elem.bind("mouseup.dlZoomArea", zoomEnd); | |
654 | 1535 return false; |
1536 }; | |
668 | 1537 |
741 | 1538 // mouse move handler |
1539 var zoomMove = function (evt) { | |
1540 pt2 = geom.position(evt); | |
1541 var rect = geom.rectangle(pt1, pt2); | |
1542 rect.clipTo(picRect); | |
1543 // update zoom div | |
1544 rect.adjustDiv($zoomDiv); | |
1545 return false; | |
1546 }; | |
745
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
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diff
changeset
|
1547 |
654 | 1548 // mouseup handler: end moving |
1549 var zoomEnd = function (evt) { | |
1550 pt2 = geom.position(evt); | |
1551 // assume a click and continue if the area is too small | |
1552 var clickRect = geom.rectangle(pt1, pt2); | |
710 | 1553 if (clickRect.getArea() <= 5) return false; |
654 | 1554 // hide zoom div |
1555 $zoomDiv.remove(); | |
1556 // unregister events | |
738 | 1557 $elem.unbind("mousemove.dlZoomArea", zoomMove); |
1558 $elem.unbind("mouseup.dlZoomArea", zoomEnd); | |
654 | 1559 // clip and transform |
1560 clickRect.clipTo(picRect); | |
1561 var area = data.imgTrafo.invtransform(clickRect); | |
1562 data.zoomArea = area; | |
1563 // zoomed is always fit | |
1564 data.settings.ws = 1; | |
738 | 1565 delete data.dlOpts.fitwidth; |
1566 delete data.dlOpts.fitheight; | |
654 | 1567 redisplay(data); |
1568 return false; | |
1569 }; | |
668 | 1570 |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1571 // clear old handler (also ZoomDrag) |
738 | 1572 $scaler.unbind('.dlZoomArea'); |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1573 $scaler.unbind(".dlZoomDrag"); |
738 | 1574 $elem.unbind('.dlZoomArea'); |
654 | 1575 // bind start zoom handler |
738 | 1576 $scaler.one('mousedown.dlZoomArea', zoomStart); |
654 | 1577 }; |
647 | 1578 |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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745
diff
changeset
|
1579 // set zoom background |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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745
diff
changeset
|
1580 var setZoomBG = function(data) { |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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745
diff
changeset
|
1581 var $scaler = data.$scaler; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1582 var $img = data.$img; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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745
diff
changeset
|
1583 var fullRect = null; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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745
diff
changeset
|
1584 // hide the scaler img, show background of div instead |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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745
diff
changeset
|
1585 $img.css('visibility', 'hidden'); |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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diff
changeset
|
1586 var scalerCss = { |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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diff
changeset
|
1587 'background-image' : 'url(' + $img.attr('src') + ')', |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1588 'background-repeat' : 'no-repeat', |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1589 'background-position' : 'left top', |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1590 'opacity' : '0.5', |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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diff
changeset
|
1591 'cursor' : 'move' |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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745
diff
changeset
|
1592 }; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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745
diff
changeset
|
1593 if (data.hasBgSize) { |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1594 // full-size background using CSS3-background-size |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1595 fullRect = data.imgTrafo.transform(FULL_AREA); |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
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diff
changeset
|
1596 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) { |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1597 // correct offset because background is relative |
751
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
748
diff
changeset
|
1598 var scalerPos = geom.position($scaler); |
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
748
diff
changeset
|
1599 fullRect.addPosition(scalerPos.neg()); |
795 | 1600 var url = getBgImgUrl(data); |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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parents:
745
diff
changeset
|
1601 scalerCss['background-image'] = 'url(' + url + ')'; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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parents:
745
diff
changeset
|
1602 scalerCss[data.bgSizeName] = fullRect.width + 'px ' + fullRect.height + 'px'; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1603 scalerCss['background-position'] = fullRect.x + 'px '+ fullRect.y + 'px'; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1604 } else { |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1605 // too big |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1606 fullRect = null; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1607 } |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1608 } |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1609 $scaler.css(scalerCss); |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1610 // isBgReady = true; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1611 return fullRect; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1612 }; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1613 |
738 | 1614 // setup handlers for dragging the zoomed image |
705 | 1615 var setupZoomDrag = function(data) { |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1616 var startPos, delta, fullRect; |
733 | 1617 var $document = $(document); |
795 | 1618 var $data = $(data); |
705 | 1619 var $elem = data.$elem; |
1620 var $scaler = data.$scaler; | |
1621 var $img = data.$img; | |
710 | 1622 |
733 | 1623 // drag the image and load a new detail on mouse up |
705 | 1624 var dragStart = function (evt) { |
813 | 1625 console.debug("dragstart at=", evt); |
737
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
736
diff
changeset
|
1626 // don't start dragging if not zoomed |
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
736
diff
changeset
|
1627 if (isFullArea(data.zoomArea)) return false; |
813 | 1628 $elem.find(".overlay").hide(); // hide all overlays (marks/regions) |
733 | 1629 startPos = geom.position(evt); |
741 | 1630 delta = null; |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1631 // set low res background immediately on mousedown |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1632 fullRect = setZoomBG(data); |
733 | 1633 $document.bind("mousemove.dlZoomDrag", dragMove); |
1634 $document.bind("mouseup.dlZoomDrag", dragEnd); | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1635 return false; |
705 | 1636 }; |
745
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1637 |
733 | 1638 // mousemove handler: drag zoomed image |
705 | 1639 var dragMove = function (evt) { |
1640 var pos = geom.position(evt); | |
741 | 1641 delta = startPos.delta(pos); |
1642 if (fullRect) { | |
1643 var bgPos = fullRect.getPosition().add(delta); | |
1644 } else { | |
1645 var bgPos = delta; | |
1646 } | |
705 | 1647 // move the background image to the new position |
715 | 1648 $scaler.css({ |
741 | 1649 'background-position' : bgPos.x + "px " + bgPos.y + "px" |
705 | 1650 }); |
807
1b1728926534
geometry: overlapsRect() plus some comment clarifications
hertzhaft
parents:
799
diff
changeset
|
1651 // send message event with current zoom position |
745
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1652 var za = geom.rectangle($img); |
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1653 za.addPosition(delta.neg()); |
795 | 1654 $data.trigger('dragZoom', [za]); |
1655 //TODO: setBirdZoom(data, za); | |
705 | 1656 return false; |
1657 }; | |
710 | 1658 |
733 | 1659 // mouseup handler: reload zoomed image in new position |
705 | 1660 var dragEnd = function (evt) { |
739 | 1661 $scaler.css('cursor', 'auto'); |
733 | 1662 $document.unbind("mousemove.dlZoomDrag", dragMove); |
1663 $document.unbind("mouseup.dlZoomDrag", dragEnd); | |
1664 if (delta == null || delta.distance() < 2) { | |
1665 // no movement | |
1666 $img.css('visibility', 'visible'); | |
741 | 1667 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
767 | 1668 // unhide marks |
1669 data.$elem.find('div.mark').show(); | |
813 | 1670 $(data).trigger('redisplay'); |
733 | 1671 return false; |
1672 } | |
1673 // get old zoom area (screen coordinates) | |
741 | 1674 var za = geom.rectangle($img); |
733 | 1675 // move |
741 | 1676 za.addPosition(delta.neg()); |
733 | 1677 // transform back |
1678 var newArea = data.imgTrafo.invtransform(za); | |
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1679 data.zoomArea = FULL_AREA.fit(newArea); |
708
120ace160386
img reload works for fullscreen, but somehow not precise
hertzhaft
parents:
707
diff
changeset
|
1680 redisplay(data); |
705 | 1681 return false; |
1682 }; | |
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1683 |
733 | 1684 // clear old handler |
1685 $document.unbind(".dlZoomDrag"); | |
741 | 1686 $scaler.unbind(".dlZoomDrag"); |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1687 if (! isFullArea(data.zoomArea)) { |
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1688 // set handler |
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1689 $scaler.bind("mousedown.dlZoomDrag", dragStart); |
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1690 } |
705 | 1691 }; |
1692 | |
703 | 1693 // get image quality as a number (0..2) |
1694 var getQuality = function (data) { | |
1695 var flags = data.scalerFlags; | |
1696 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
1697 return parseInt(q[1], 10); | |
706 | 1698 }; |
703 | 1699 |
1700 // set image quality as a number (0..2) | |
1701 var setQuality = function (data, qual) { | |
1702 var flags = data.scalerFlags; | |
1703 // clear flags | |
1704 for (var i = 0; i < 3; ++i) { | |
1705 delete flags['q'+i]; | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1706 } |
703 | 1707 flags['q'+qual] = 'q'+qual; |
706 | 1708 }; |
710 | 1709 |
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1710 // get image scale mode (screen, pixel, size) |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1711 var getScaleMode = function (data) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1712 if (data.scalerFlags.clip != null) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1713 return 'pixel'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1714 } else if (data.scalerFlags.osize != null) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1715 return 'size'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1716 } |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1717 // mo=fit is default |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1718 return 'screen'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1719 }; |
775 | 1720 |
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1721 // set image scale mode (screen, pixel, size) |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1722 var setScaleMode = function (data, mode) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1723 delete data.scalerFlags.fit; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1724 delete data.scalerFlags.clip; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1725 delete data.scalerFlags.osize; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1726 if (mode === 'pixel') { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1727 data.scalerFlags.clip = 'clip'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1728 } else if (mode === 'size') { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1729 data.scalerFlags.osize = 'osize'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1730 } |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1731 // mo=fit is default |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1732 }; |
775 | 1733 |
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1734 // sets a key to a value (relative values with +/- if relative=true) |
650 | 1735 var setNumValue = function(settings, key, value) { |
716 | 1736 if (value == null) return null; |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1737 if (isNumber(value)) { |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1738 settings[key] = value; |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1739 return value; |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1740 } |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1741 var sign = value[0]; |
650 | 1742 if (sign === '+' || sign === '-') { |
1743 if (settings[key] == null) { | |
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1744 // this isn't perfect but still... |
650 | 1745 settings[key] = 0; |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1746 } |
650 | 1747 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
1748 } else { | |
1749 settings[key] = value; | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1750 } |
650 | 1751 return settings[key]; |
1752 }; | |
655 | 1753 |
775 | 1754 // auxiliary function, assuming equal border width on all sides |
1755 var getBorderWidth = function($elem) { | |
1756 var border = $elem.outerWidth() - $elem.width(); | |
1757 return border/2; | |
1758 }; | |
1759 | |
878 | 1760 // auxiliary function, can the current zoomarea be moved further? |
1761 var canMove = function(data, movx, movy) { | |
1762 var za = data.zoomArea; | |
1763 if (isFullArea(za)) return false; | |
1764 var x2 = za.x + za.width; | |
1765 var y2 = za.y + za.height; | |
1766 return ((movx < 0) && (za.x > 0)) | |
1767 || ((movx > 0) && (x2 < 1.0)) | |
1768 || ((movy < 0) && (za.y > 0)) | |
1769 || ((movy > 0) && (y2 < 1.0)) | |
1770 }; | |
1771 | |
655 | 1772 // auxiliary function (from old dllib.js) |
795 | 1773 var isFullArea = function (area) { |
659 | 1774 return (area.width === 1.0) && (area.height === 1.0); |
655 | 1775 }; |
1776 | |
641 | 1777 // auxiliary function (from Douglas Crockford, A.10) |
795 | 1778 var isNumber = function (value) { |
710 | 1779 return typeof value === 'number' && isFinite(value); |
641 | 1780 }; |
655 | 1781 |
631 | 1782 // auxiliary function to crop senseless precision |
1783 var cropFloat = function (x) { | |
637 | 1784 return parseInt(10000 * x, 10) / 10000; |
631 | 1785 }; |
655 | 1786 |
813 | 1787 // idem, string version |
1788 var cropFloatStr = function (x) { | |
1789 return cropFloat(x).toString(); | |
1790 }; | |
1791 | |
692 | 1792 // fallback for console.log calls |
1793 if (customConsole) { | |
1794 var logFunction = function(type) { | |
1795 return function(){ | |
1796 var $debug = $('#debug'); // debug div | |
1797 if (!$debug) return; | |
1798 var args = Array.prototype.slice.call(arguments); | |
1799 var argtext = args.join(' '); | |
1800 var $logDiv = $('<div/>'); | |
1801 $logDiv.addClass(type); | |
1802 $logDiv.text(argtext); | |
1803 $debug.append($logDiv); | |
1804 }; | |
1805 }; | |
1806 console.log = logFunction('_log'); | |
1807 console.debug = logFunction('_debug'); | |
1808 console.error = logFunction('_error'); | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1809 } |
692 | 1810 |
787 | 1811 // functions to export to plugins |
1812 fn = { | |
791 | 1813 geometry : geom, |
787 | 1814 parseQueryString : parseQueryString, |
1815 getScalerUrl : getScalerUrl, | |
1816 getParamString : getParamString, | |
1817 getDigilibUrl : getDigilibUrl, | |
1818 unpackParams : unpackParams, | |
1819 packParams : packParams, | |
822 | 1820 packArea : packArea, |
1821 packMarks : packMarks, | |
1822 packScalerFlags : packScalerFlags, | |
795 | 1823 storeOptions : storeOptions, |
787 | 1824 redisplay : redisplay, |
1825 updateDisplay : updateDisplay, | |
795 | 1826 highlightButtons : highlightButtons, |
791 | 1827 showDiv : showDiv, |
795 | 1828 setZoomBG : setZoomBG, |
787 | 1829 getImgTrafo : getImgTrafo, |
1830 getQuality : getQuality, | |
1831 setQuality : setQuality, | |
1832 getScaleMode : getScaleMode, | |
1833 setScaleMode : setScaleMode, | |
878 | 1834 canMove : canMove, |
795 | 1835 isFullArea : isFullArea, |
813 | 1836 isNumber : isNumber, |
1837 getBorderWidth : getBorderWidth, | |
1838 cropFloat : cropFloat, | |
1839 cropFloatStr : cropFloatStr | |
787 | 1840 }; |
788 | 1841 |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1842 // hook digilib plugin into jquery |
785 | 1843 $.fn.digilib = function (action) { |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1844 // plugin extension mechanism, called when the plugins' code is read |
786 | 1845 if (action === 'plugin') { |
1846 var plugin = arguments[1]; | |
1847 // each plugin needs a name | |
1848 if (plugin.name != null) { | |
1849 plugins[plugin.name] = plugin; | |
793
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1850 // share common objects |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1851 plugin.defaults = defaults; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1852 plugin.buttons = buttons; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1853 plugin.actions = actions; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1854 plugin.fn = fn; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1855 plugin.plugins = plugins; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1856 // and install |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1857 if (typeof plugin.install === 'function') { |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1858 plugin.install(plugin); |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1859 } |
786 | 1860 } |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1861 // plugins will be initialised when action.init is called |
760
f0be4432f515
primitive plugin extension mechanism - unsure how useful this is
hertzhaft
parents:
755
diff
changeset
|
1862 } else if (actions[action]) { |
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1863 // call action on this with the remaining arguments (inserting data as first argument) |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1864 var $elem = $(this); |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1865 var data = $elem.data('digilib'); |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1866 var args = Array.prototype.slice.call(arguments, 1); |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1867 args.unshift(data); |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1868 return actions[action].apply(this, args); |
798
b07d1824ca2a
fullscreen mode works without reload on browsers supporting history.pushstate!
robcast
parents:
797
diff
changeset
|
1869 } else if (typeof action === 'object' || !action) { |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1870 // call init on the digilib jQuery object |
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1871 return actions.init.apply(this, arguments); |
605 | 1872 } else { |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1873 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1874 } |
605 | 1875 }; |
692 | 1876 |
604 | 1877 })(jQuery); |