Mercurial > hg > digilib-old
annotate webapp/src/main/webapp/jquery/jquery.digilib.js @ 927:95d8184995ab
fixed bug with next/prev page.
author | robcast |
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date | Mon, 19 Dec 2011 23:42:31 +0100 |
parents | f7869186ccb2 |
children | 8d04821f9302 |
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 |
927 | 196 'version' : 'jquery.digilib.js 2.0b3', |
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/ |
915 | 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 loadImageInfo(data); // triggers "imageInfo" on completion |
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403 } |
779 | 404 // create buttons before scaler |
697 | 405 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { |
406 showButtons(data, true, i); | |
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407 } |
779 | 408 // create HTML structure for scaler, taking width of buttons div into account |
409 setupScalerDiv(data); | |
765 | 410 highlightButtons(data); |
668 | 411 // about window creation - TODO: could be deferred? restrict to only one item? |
412 setupAboutDiv(data); | |
856 | 413 // arrow overlays for moving zoomed detail |
414 setupZoomArrows(data); | |
795 | 415 // send setup event |
416 $(data).trigger('setup'); | |
668 | 417 }); |
418 }, | |
419 | |
420 // destroy: clean up digilib | |
421 destroy : function(data) { | |
422 return this.each(function(){ | |
423 var $elem = $(this); | |
917 | 424 $(window).off('.digilib'); // unbind all digilibs(?) |
668 | 425 data.digilib.remove(); |
426 $elem.removeData('digilib'); | |
427 }); | |
428 }, | |
429 | |
430 // show or hide the 'about' window | |
431 showAboutDiv : function(data, show) { | |
765 | 432 var on = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); |
433 data.settings.isAboutDivVisible = on; | |
434 highlightButtons(data, 'help', on); | |
668 | 435 }, |
655 | 436 |
668 | 437 // goto given page nr (+/-: relative) |
438 gotoPage : function (data, pageNr) { | |
439 var settings = data.settings; | |
440 var oldpn = settings.pn; | |
716 | 441 if (pageNr == null) { |
442 pageNr = window.prompt("Goto page number", oldpn); | |
443 } | |
668 | 444 var pn = setNumValue(settings, "pn", pageNr); |
445 if (pn == null) return false; // nothing happened | |
446 if (pn < 1) { | |
447 alert("no such page (page number too low)"); | |
448 settings.pn = oldpn; | |
449 return false; | |
450 } | |
767 | 451 // TODO: how do we get pt? |
668 | 452 if (settings.pt) { |
453 if (pn > settings.pt) { | |
454 alert("no such page (page number too high)"); | |
623 | 455 settings.pn = oldpn; |
456 return false; | |
634 | 457 } |
668 | 458 } |
459 // reset mk and others(?) | |
460 data.marks = []; | |
927 | 461 data.zoomArea = FULL_AREA.copy(); |
668 | 462 // then reload |
463 redisplay(data); | |
464 }, | |
654 | 465 |
668 | 466 // zoom by a given factor |
467 zoomBy : function (data, factor) { | |
468 zoomBy(data, factor); | |
469 }, | |
647 | 470 |
767 | 471 // zoom to area (or interactive) |
472 zoomArea : function (data, area) { | |
473 var settings = data.settings; | |
474 if (area == null) { | |
475 // interactively | |
476 zoomArea(data); | |
477 } else { | |
478 data.zoomArea = geom.rectangle(area); | |
479 redisplay(data); | |
480 } | |
668 | 481 }, |
650 | 482 |
668 | 483 // zoom out to full page |
484 zoomFull : function (data, mode) { | |
917 | 485 data.zoomArea = FULL_AREA.copy(); |
668 | 486 if (mode === 'width') { |
487 data.dlOpts.fitwidth = 1; | |
488 delete data.dlOpts.fitheight; | |
489 } else if (mode === 'height') { | |
490 data.dlOpts.fitheight = 1; | |
491 delete data.dlOpts.fitwidth; | |
492 } else { | |
493 delete data.dlOpts.fitwidth; | |
494 delete data.dlOpts.fitheight; | |
495 } | |
496 redisplay(data); | |
497 }, | |
498 | |
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499 // move zoomed area |
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500 moveZoomArea : function (data, dx, dy) { |
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501 var za = data.zoomArea; |
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502 var factor = data.settings.zoomArrowMoveFactor; |
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503 var deltaX = dx * factor * za.width; |
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504 var deltaY = dy * factor * za.height; |
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505 za.addPosition(geom.position(deltaX, deltaY)); |
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506 data.zoomArea = FULL_AREA.fit(za); |
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507 redisplay(data); |
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508 }, |
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509 |
668 | 510 // set a mark by clicking (or giving a position) |
511 setMark : function (data, mpos) { | |
512 if (mpos == null) { | |
513 // interactive | |
514 setMark(data); | |
515 } else { | |
516 // use position | |
517 data.marks.push(pos); | |
663 | 518 redisplay(data); |
604 | 519 } |
668 | 520 }, |
521 | |
522 // remove the last mark | |
523 removeMark : function (data) { | |
524 data.marks.pop(); | |
525 redisplay(data); | |
526 }, | |
527 | |
528 // mirror the image | |
529 mirror : function (data, mode) { | |
530 var flags = data.scalerFlags; | |
531 if (mode === 'h') { | |
532 if (flags.hmir) { | |
533 delete flags.hmir; | |
534 } else { | |
535 flags.hmir = 1; | |
536 } | |
537 } else { | |
538 if (flags.vmir) { | |
539 delete flags.vmir; | |
540 } else { | |
541 flags.vmir = 1; | |
542 } | |
543 } | |
544 redisplay(data); | |
545 }, | |
650 | 546 |
668 | 547 // rotate the image |
548 rotate : function (data, angle) { | |
549 var rot = data.settings.rot; | |
550 if (angle == null) { | |
551 angle = window.prompt("Rotation angle:", rot); | |
552 } | |
553 data.settings.rot = angle; | |
554 redisplay(data); | |
555 }, | |
556 | |
557 // change brightness | |
558 brightness : function (data, factor) { | |
559 var brgt = data.settings.brgt; | |
560 if (factor == null) { | |
561 factor = window.prompt("Brightness (-255..255)", brgt); | |
562 } | |
563 data.settings.brgt = factor; | |
564 redisplay(data); | |
565 }, | |
566 | |
567 // change contrast | |
568 contrast : function (data, factor) { | |
569 var cont = data.settings.cont; | |
570 if (factor == null) { | |
571 factor = window.prompt("Contrast (-8, 8)", cont); | |
572 } | |
573 data.settings.cont = factor; | |
574 redisplay(data); | |
688 | 575 }, |
710 | 576 |
690 | 577 // display more (or less) button sets |
748 | 578 moreButtons : function (data, more) { |
696 | 579 var settings = data.settings; |
699 | 580 if (more == null) { |
703 | 581 // toggle more or less (only works for 2 sets) |
699 | 582 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
583 if (settings.visibleButtonSets >= maxbtns) { | |
584 more = '-1'; | |
585 } else { | |
586 more = '+1'; | |
587 } | |
588 } | |
690 | 589 if (more === '-1') { |
590 // remove set | |
697 | 591 var setIdx = settings.visibleButtonSets - 1; |
592 if (showButtons(data, false, setIdx, true)) { | |
593 settings.visibleButtonSets--; | |
594 } | |
690 | 595 } else { |
596 // add set | |
697 | 597 var setIdx = settings.visibleButtonSets; |
598 if (showButtons(data, true, setIdx, true)) { | |
599 settings.visibleButtonSets++; | |
690 | 600 } |
601 } | |
723 | 602 // persist setting |
603 storeOptions(data); | |
691 | 604 }, |
688 | 605 |
703 | 606 // reset image parameters to defaults |
688 | 607 reset : function (data) { |
608 var settings = data.settings; | |
609 var paramNames = settings.digilibParamNames; | |
610 var params = data.queryParams; | |
611 // delete all digilib parameters | |
612 for (var i = 0; i < paramNames.length; i++) { | |
613 var paramName = paramNames[i]; | |
614 delete settings[paramName]; | |
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615 } |
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616 settings.fn = params.fn || ''; // no default defined |
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617 settings.pn = params.pn || defaults.pn; |
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618 settings.dw = params.dw; |
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619 settings.dh = params.dh; |
709 | 620 settings.isBirdDivVisible = false; |
621 settings.visibleButtonSets = 1; | |
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622 // resets zoomArea, marks, scalerflags |
917 | 623 data.zoomArea = FULL_AREA.copy(); |
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624 data.marks = []; |
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625 data.scalerFlags = {}; |
712 | 626 delete data.dlOpts.fitwidth; |
627 delete data.dlOpts.fitheight; | |
688 | 628 redisplay(data); |
689 | 629 }, |
630 | |
703 | 631 // presents a reference url (returns value if noprompt) |
632 reference : function (data, noprompt) { | |
744 | 633 var url = getDigilibUrl(data); |
703 | 634 if (noprompt == null) { |
635 window.prompt("URL reference to the current view", url); | |
636 } | |
637 return url; | |
638 }, | |
710 | 639 |
703 | 640 // set image quality |
748 | 641 setQuality : function (data, qual) { |
703 | 642 var oldq = getQuality(data); |
643 if (qual == null) { | |
644 qual = window.prompt("Image quality (0..2)", oldq); | |
645 } | |
646 qual = parseInt(qual, 10); | |
647 if (qual >= 0 && qual <= 2) { | |
648 setQuality(data, qual); | |
649 redisplay(data); | |
650 } | |
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651 }, |
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652 |
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653 // calibrate (only faking) |
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654 calibrate : function (data, res) { |
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655 var oldRes = data.settings.ddpi; |
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656 if (res == null) { |
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657 res = window.prompt("Display resolution (dpi)", oldRes); |
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658 } |
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659 if (res != null) { |
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660 data.settings.ddpi = res; |
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661 redisplay(data); |
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662 } |
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663 }, |
775 | 664 |
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665 // set image scale mode |
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666 setScaleMode : function (data, mode) { |
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667 var oldM = getScaleMode(data); |
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668 if (mode == null) { |
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669 mode = window.prompt("Image scale mode (screen, pixel, size)", oldM); |
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670 } |
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671 if (mode != null) { |
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672 setScaleMode(data, mode); |
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673 data.scaleMode = mode; |
761
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674 redisplay(data); |
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675 } |
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676 } |
775 | 677 |
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678 // end of actions |
605 | 679 }; |
604 | 680 |
608 | 681 // returns parameters from page url |
607 | 682 var parseQueryParams = function() { |
636 | 683 return parseQueryString(window.location.search.slice(1)); |
684 }; | |
655 | 685 |
636 | 686 // returns parameters from embedded img-element |
607 | 687 var parseImgParams = function($elem) { |
613
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688 var src = $elem.find('img').first().attr('src'); |
710 | 689 if (!src) return null; |
607 | 690 var pos = src.indexOf('?'); |
691 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
692 var scalerUrl = src.substring(0, pos); | |
627 | 693 var params = parseQueryString(query); |
694 params.scalerBaseUrl = scalerUrl; | |
695 return params; | |
636 | 696 }; |
607 | 697 |
608 | 698 // parses query parameter string into parameter object |
607 | 699 var parseQueryString = function(query) { |
701 | 700 var params = {}; |
701 if (query == null) return params; | |
607 | 702 var pairs = query.split("&"); |
636 | 703 //var keys = []; |
607 | 704 for (var i = 0; i < pairs.length; i++) { |
705 var pair = pairs[i].split("="); | |
706 if (pair.length === 2) { | |
627 | 707 params[pair[0]] = pair[1]; |
636 | 708 //keys.push(pair[0]); |
634 | 709 } |
636 | 710 } |
627 | 711 return params; |
636 | 712 }; |
668 | 713 |
643 | 714 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
715 var getParamString = function (settings, keys, defaults) { | |
615 | 716 var paramString = ''; |
650 | 717 var nx = false; |
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718 for (var i = 0; i < keys.length; ++i) { |
615 | 719 var key = keys[i]; |
663 | 720 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 721 // first param gets no '&' |
650 | 722 if (nx) { |
723 paramString += '&'; | |
724 } else { | |
725 nx = true; | |
726 } | |
615 | 727 // add parm=val |
728 paramString += key + '=' + settings[key]; | |
643 | 729 } |
615 | 730 } |
731 return paramString; | |
631 | 732 }; |
733 | |
636 | 734 // returns URL and query string for Scaler |
735 var getScalerUrl = function (data) { | |
741 | 736 packParams(data); |
653 | 737 var settings = data.settings; |
652 | 738 if (settings.scalerBaseUrl == null) { |
739 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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740 } |
636 | 741 var keys = settings.scalerParamNames; |
643 | 742 var queryString = getParamString(settings, keys, defaults); |
636 | 743 var url = settings.scalerBaseUrl + '?' + queryString; |
744 return url; | |
745 }; | |
746 | |
741 | 747 // returns URL for bird's eye view image |
795 | 748 var getBgImgUrl = function (data, moreParams) { |
741 | 749 var settings = data.settings; |
795 | 750 var bgOptions = { |
751 dw : settings.bgImgWidth, | |
752 dh : settings.bgImgHeight | |
741 | 753 }; |
795 | 754 var bgSettings = $.extend({}, settings, bgOptions); |
755 // filter scaler flags | |
756 if (bgSettings.mo != null) { | |
757 var mo = ''; | |
758 if (data.scalerFlags.hmir != null) { | |
759 mo += 'hmir,'; | |
767 | 760 } |
795 | 761 if (data.scalerFlags.vmir != null) { |
762 mo += 'vmir'; | |
763 } | |
764 bgSettings.mo = mo; | |
743 | 765 } |
795 | 766 var params = getParamString(bgSettings, settings.bgImgParams, defaults); |
743 | 767 var url = settings.scalerBaseUrl + '?' + params; |
741 | 768 return url; |
769 }; | |
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770 |
636 | 771 // returns URL and query string for current digilib |
644
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772 var getDigilibUrl = function (data) { |
643 | 773 packParams(data); |
636 | 774 var settings = data.settings; |
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775 var paramList = settings.additionalParamNames.concat(settings.digilibParamNames); |
914 | 776 if (settings.suppressParamNames != null) { |
777 // eliminate suppressed parameters from list | |
778 paramList = $.map(paramList, function(e, idx) { | |
779 if ($.inArray(e, settings.suppressParamNames) >= 0) { | |
780 return null; | |
781 } else { | |
782 return e; | |
783 } | |
784 }); | |
785 } | |
913
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786 var queryString = getParamString(settings, paramList, defaults); |
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787 // take url from current location |
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788 var url = window.location.href; |
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789 var pos = url.indexOf('?'); |
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790 if (pos > -1) { |
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791 url = url.substring(0, pos); |
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792 } |
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793 return url + '?' + queryString; |
636 | 794 }; |
795 | |
797 | 796 // loads image information from digilib server via HTTP |
797 var loadImageInfo = function (data) { | |
754
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798 var settings = data.settings; |
917 | 799 // bind default function (only once) |
800 $(data).off('imageInfo', handleImageInfo); | |
801 $(data).on('imageInfo', handleImageInfo); | |
802 var url = settings.digilibBaseUrl + '/ImgInfo-json.jsp'; | |
754
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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 = $.cookie(ck); |
709 | 933 console.debug("get cookie=", ck, " value=", cp); |
934 // in query string format | |
935 opts = parseQueryString(cp); | |
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936 } |
709 | 937 data.dlOpts = opts; |
938 // birdview option | |
939 if (opts.birdview != null) { | |
940 settings.isBirdDivVisible = opts.birdview === '1'; | |
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941 } |
709 | 942 // visible button sets |
943 if (opts.buttons != null) { | |
944 settings.visibleButtonSets = opts.buttons; | |
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945 } |
711 | 946 }; |
709 | 947 |
622 | 948 // (re)load the img from a new scaler URL |
644
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949 var redisplay = function (data) { |
636 | 950 var settings = data.settings; |
951 if (settings.interactionMode === 'fullscreen') { | |
952 // update location.href (browser URL) in fullscreen mode | |
644
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953 var url = getDigilibUrl(data); |
636 | 954 var history = window.history; |
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955 if (typeof history.replaceState === 'function') { |
798
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956 console.debug("faking reload to "+url); |
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957 // change url without reloading (stateObj, title, url) |
890
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958 // TODO: we really need to push the state in stateObj and listen to pop-events |
913
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959 try { |
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960 history.replaceState({}, '', url); |
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961 // change img src |
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962 var imgurl = getScalerUrl(data); |
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963 data.$img.attr('src', imgurl); |
917 | 964 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { |
965 // we need image info, do we have it? | |
966 if (data.imgInfo == null) { | |
967 loadImageInfo(data); | |
968 } | |
969 } | |
970 highlightButtons(data); // TODO: better solution | |
913
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971 // send event |
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972 $(data).trigger('redisplay'); |
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973 } catch (e) { |
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974 console.error("replaceState("+url+") didn't work: "+e); |
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975 // reload window |
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976 window.location = url; |
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977 } |
798
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978 } else { |
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979 // reload window |
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980 window.location = url; |
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981 } |
636 | 982 } else { |
983 // embedded mode -- just change img src | |
984 var url = getScalerUrl(data); | |
985 data.$img.attr('src', url); | |
917 | 986 if (data.scalerFlags.clip != null || data.scalerFlags.osize != null) { |
987 // we need image info, do we have it? | |
988 if (data.imgInfo == null) { | |
989 loadImageInfo(data); | |
990 } | |
991 } | |
992 highlightButtons(data); // TODO: better solution | |
795 | 993 // send event |
994 $(data).trigger('redisplay'); | |
913
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995 } |
622 | 996 }; |
997 | |
767 | 998 // update display (overlays etc.) |
999 var updateDisplay = function (data) { | |
1000 updateImgTrafo(data); | |
1001 renderMarks(data); | |
1002 setupZoomDrag(data); | |
862 | 1003 renderZoomArrows(data); |
784 | 1004 // send event |
1005 $(data).trigger('update'); | |
767 | 1006 }; |
775 | 1007 |
662 | 1008 // returns maximum size for scaler img in fullscreen mode |
778 | 1009 var getFullscreenImgSize = function (data) { |
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1010 var mode = data.settings.interactionMode; |
662 | 1011 var $win = $(window); |
1012 var winH = $win.height(); | |
779 | 1013 var winW = $win.width(); |
1014 var $body = $('body'); | |
886
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1015 // include standard body margins and check plausibility |
780 | 1016 var borderW = $body.outerWidth(true) - $body.width(); |
886
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1017 if (borderW === 0 || borderW > 100) { |
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1018 console.debug("fixing border width for getFullscreenImgSize!"); |
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1019 borderW = data.settings.scalerInset; |
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1020 } |
780 | 1021 var borderH = $body.outerHeight(true) - $body.height(); |
886
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1022 if (borderH === 0 || borderH > 100) { |
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1023 console.debug("fixing border height for getFullscreenImgSize!"); |
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1024 borderH = 5; |
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1025 } |
779 | 1026 var buttonsW = 0; |
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1027 if (data.settings.visibleButtonSets) { |
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1028 // get button width from settings |
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1029 buttonsW = data.settings.buttonSettings[mode].buttonSetWidth; |
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1030 // TODO: leave space for all button sets? |
779 | 1031 } |
1032 // account for left/right border, body margins and additional requirements | |
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1033 var imgW = winW - borderW - buttonsW; |
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1034 var imgH = winH - borderH; |
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1035 console.debug(winW, winH, 'winW:', $win.width(), 'border:', borderW, 'buttonsW:', buttonsW, 'calc:', imgW); |
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1036 return geom.size(imgW, imgH); |
662 | 1037 }; |
1038 | |
608 | 1039 // creates HTML structure for digilib in elem |
627 | 1040 var setupScalerDiv = function (data) { |
1041 var settings = data.settings; | |
647 | 1042 var $elem = data.$elem; |
725 | 1043 $elem.addClass('digilib'); |
728 | 1044 var $img; |
1045 var scalerUrl; | |
608 | 1046 if (settings.interactionMode === 'fullscreen') { |
728 | 1047 // fullscreen |
725 | 1048 $elem.addClass('dl_fullscreen'); |
778 | 1049 var imgSize = getFullscreenImgSize(data); |
650 | 1050 // fitwidth/height omits destination height/width |
728 | 1051 if (data.dlOpts.fitheight == null) { |
650 | 1052 settings.dw = imgSize.width; |
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1053 } |
728 | 1054 if (data.dlOpts.fitwidth == null) { |
650 | 1055 settings.dh = imgSize.height; |
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1056 } |
686 | 1057 scalerUrl = getScalerUrl(data); |
728 | 1058 $img = $('<img/>'); |
609 | 1059 } else { |
728 | 1060 // embedded mode -- try to keep img tag |
725 | 1061 $elem.addClass('dl_embedded'); |
728 | 1062 scalerUrl = getScalerUrl(data); |
623 | 1063 $img = $elem.find('img'); |
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1064 if ($img.length > 0) { |
870
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1065 var oldUrl = $img.attr('src'); |
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1066 // keep img attributes from html |
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1067 var title = $img.attr('title'); |
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1068 var alt = $img.attr('alt'); |
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1069 if (oldUrl === scalerUrl) { |
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1070 console.debug("img detach:", $img); |
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1071 $img.detach(); |
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1072 } else { |
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1073 $img = $('<img/>'); |
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1074 $img.attr("title", title); |
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1075 $img.attr("alt", alt); |
728 | 1076 } |
613
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1077 } else { |
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1078 $img = $('<img/>'); |
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1079 } |
608 | 1080 } |
822 | 1081 // create new inner html, keeping buttons and content marked with "keep" class |
1082 $elem.contents(":not(.keep)").remove(); | |
613
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1083 var $scaler = $('<div class="scaler"/>'); |
779 | 1084 // scaler should be the first child element? |
1085 $elem.prepend($scaler); | |
613
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1086 $scaler.append($img); |
622 | 1087 $img.addClass('pic'); |
649 | 1088 data.$scaler = $scaler; |
636 | 1089 data.$img = $img; |
687 | 1090 // setup image load handler before setting the src attribute (IE bug) |
1091 $img.load(scalerImgLoadedHandler(data)); | |
767 | 1092 $img.error(function () {console.error("error loading scaler image");}); |
687 | 1093 $img.attr('src', scalerUrl); |
608 | 1094 }; |
615 | 1095 |
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1096 // creates HTML structure for a single button |
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1097 var createButton = function (data, $div, buttonName) { |
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1098 var $elem = data.$elem; |
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1099 var settings = data.settings; |
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1100 var mode = settings.interactionMode; |
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1101 var imagePath = settings.buttonSettings[mode].imagePath; |
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1102 // make relative imagePath absolute |
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1103 if (imagePath.charAt(0) !== '/' && imagePath.substring(0,3) !== 'http') { |
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1104 imagePath = settings.digilibBaseUrl + '/jquery/' + imagePath; |
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1105 } |
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1106 var buttonConfig = settings.buttons[buttonName]; |
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1107 // button properties |
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1108 var action = buttonConfig.onclick; |
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1109 var tooltip = buttonConfig.tooltip; |
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1110 var icon = imagePath + buttonConfig.icon; |
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1111 // construct the button html |
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1112 var $button = $('<div class="button"></div>'); |
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1113 var $a = $('<a/>'); |
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1114 var $img = $('<img class="button"/>'); |
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1115 $div.append($button); |
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1116 $button.append($a); |
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1117 $a.append($img); |
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1118 // add attributes and bindings |
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1119 $button.attr('title', tooltip); |
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1120 $button.addClass('button-' + buttonName); |
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1121 $img.attr('src', icon); |
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1122 // create handler for the buttons |
917 | 1123 $button.on('click.digilib', (function () { |
876
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1124 // we create a new closure to capture the value of action |
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1125 if ($.isArray(action)) { |
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1126 // the handler function calls digilib with action and parameters |
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1127 return function (evt) { |
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1128 console.debug('click action=', action, ' evt=', evt); |
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1129 $elem.digilib.apply($elem, action); |
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1130 return false; |
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1131 }; |
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1132 } else { |
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1133 // the handler function calls digilib with action |
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1134 return function (evt) { |
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1135 console.debug('click action=', action, ' evt=', evt); |
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1136 $elem.digilib(action); |
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1137 return false; |
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1138 }; |
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1139 } |
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1140 })()); |
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1141 }; |
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1142 |
610 | 1143 // creates HTML structure for buttons in elem |
697 | 1144 var createButtons = function (data, buttonSetIdx) { |
647 | 1145 var $elem = data.$elem; |
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1146 var settings = data.settings; |
665 | 1147 var mode = settings.interactionMode; |
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1148 var buttonSettings = settings.buttonSettings[mode]; |
682 | 1149 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
690 | 1150 if (buttonGroup == null) { |
1151 // no buttons here | |
1152 return; | |
1153 } | |
822 | 1154 // button divs are marked with class "keep" |
1155 var $buttonsDiv = $('<div class="keep buttons"/>'); | |
682 | 1156 var buttonNames = buttonSettings[buttonGroup]; |
1157 for (var i = 0; i < buttonNames.length; i++) { | |
1158 var buttonName = buttonNames[i]; | |
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1159 createButton(data, $buttonsDiv, buttonName); |
690 | 1160 } |
662 | 1161 // make buttons div scroll if too large for window |
1162 if ($buttonsDiv.height() > $(window).height() - 10) { | |
1163 $buttonsDiv.css('position', 'absolute'); | |
1164 } | |
697 | 1165 // buttons hidden at first |
1166 $buttonsDiv.hide(); | |
1167 $elem.append($buttonsDiv); | |
682 | 1168 if (data.$buttonSets == null) { |
697 | 1169 // first button set |
682 | 1170 data.$buttonSets = [$buttonsDiv]; |
1171 } else { | |
690 | 1172 $elem.append($buttonsDiv); |
682 | 1173 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
1174 } | |
612 | 1175 return $buttonsDiv; |
610 | 1176 }; |
615 | 1177 |
856 | 1178 // creates arrow overlays for moving the zoomed area |
1179 var setupZoomArrows = function (data) { | |
1180 var $elem = data.$elem; | |
1181 var settings = data.settings; | |
877 | 1182 var show = settings.showZoomArrows; |
856 | 1183 console.log('zoom arrows:', show); |
1184 if (!show) return; | |
877 | 1185 var mode = settings.interactionMode; |
1186 var arrowNames = settings.buttonSettings[mode].arrowSet; | |
879 | 1187 if (arrowNames == null) return; |
877 | 1188 // arrow divs are marked with class "keep" |
1189 var $arrowsDiv = $('<div class="keep arrows"/>'); | |
1190 $elem.append($arrowsDiv); | |
1191 // create all arrow buttons | |
1192 $.each(arrowNames, function(i, arrowName){ | |
1193 createButton(data, $arrowsDiv, arrowName); | |
1194 }); | |
856 | 1195 }; |
1196 | |
862 | 1197 // size and show arrow overlays, called after scaler img is loaded |
1198 var renderZoomArrows = function (data) { | |
877 | 1199 var settings = data.settings; |
1200 var $arrowsDiv = data.$elem.find('div.arrows'); | |
879 | 1201 if (isFullArea(data.zoomArea) || !settings.showZoomArrows) { |
1202 $arrowsDiv.hide(); | |
1203 return; | |
1204 } | |
1205 $arrowsDiv.show(); | |
877 | 1206 var r = geom.rectangle(data.$scaler); |
1207 // calculate arrow bar width | |
1208 var aw = settings.zoomArrowWidth; | |
1209 var minWidth = settings.zoomArrowMinWidth; | |
1210 // arrow bar width should not exceed 10% of scaler width/height | |
1211 var maxWidth = Math.min(r.width, r.height)/10; | |
1212 if (aw > maxWidth) { | |
1213 aw = maxWidth; | |
1214 if (aw < minWidth) { | |
1215 aw = minWidth; | |
1216 } | |
1217 } | |
879 | 1218 // vertical position of left/right image |
878 | 1219 var arrowData = [{ |
1220 name : 'up', | |
1221 rect : geom.rectangle(r.x, r.y, r.width, aw), | |
1222 show : canMove(data, 0, -1) | |
1223 }, { | |
1224 name : 'down', | |
879 | 1225 rect : geom.rectangle(r.x, r.y + r.height - aw, r.width, aw), |
878 | 1226 show : canMove(data, 0, 1) |
1227 }, { | |
1228 name : 'left', | |
1229 rect : geom.rectangle(r.x, r.y, aw, r.height), | |
884 | 1230 show : canMove(data, -1, 0) |
878 | 1231 }, { |
1232 name : 'right', | |
1233 rect : geom.rectangle(r.x + r.width - aw, r.y, aw, r.height), | |
1234 show : canMove(data, 1, 0) | |
1235 }]; | |
1236 // render a single zoom Arrow | |
1237 var render = function (i, item) { | |
1238 var $arrow = $arrowsDiv.find('div.button-' + item.name); | |
1239 if (item.show) { | |
1240 $arrow.show(); | |
1241 } else { | |
1242 $arrow.hide(); | |
879 | 1243 return; |
878 | 1244 } |
879 | 1245 var r = item.rect; |
1246 r.adjustDiv($arrow); | |
1247 var $a = $arrow.contents('a'); | |
1248 var $img = $a.contents('img'); | |
1249 $img.width(aw).height(aw); | |
1250 // hack for missing vertical-align | |
1251 if (item.name.match(/left|right/)) { | |
1252 var top = (r.height - $a.height())/2; | |
1253 $a.css({'top' : top}); // position : 'relative' | |
1254 } | |
878 | 1255 }; |
1256 $.each(arrowData, render); | |
862 | 1257 }; |
1258 | |
625 | 1259 // creates HTML structure for the about view in elem |
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1260 var setupAboutDiv = function (data) { |
647 | 1261 var $elem = data.$elem; |
628
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1262 var settings = data.settings; |
625 | 1263 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
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1264 var $header = $('<p>Digilib Image Viewer</p>'); |
616 | 1265 var $link = $('<a/>'); |
1266 var $logo = $('<img class="logo" title="digilib"/>'); | |
1267 var $content = $('<p/>'); | |
1268 $elem.append($aboutDiv); | |
1269 $aboutDiv.append($header); | |
1270 $aboutDiv.append($link); | |
1271 $aboutDiv.append($content); | |
1272 $link.append($logo); | |
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1273 logoUrl = settings.logoUrl; |
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1274 // make relative logoUrl absolute |
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1275 if (logoUrl.charAt(0) !== '/' && logoUrl.substring(0,3) !== 'http') { |
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1276 logoUrl = settings.digilibBaseUrl + '/' + logoUrl; |
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1277 } |
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1278 $logo.attr('src', logoUrl); |
635 | 1279 $link.attr('href', settings.homeUrl); |
616 | 1280 $content.text('Version: ' + settings.version); |
775 | 1281 data.$aboutDiv = $aboutDiv; |
635 | 1282 // click hides |
917 | 1283 $aboutDiv.on('click.digilib', function () { |
775 | 1284 actions['showAboutDiv'](data, false); |
710 | 1285 }); |
634 | 1286 }; |
1287 | |
635 | 1288 // shows some window e.g. 'about' (toggle visibility if show is null) |
1289 var showDiv = function (isVisible, $div, show) { | |
645 | 1290 if (show == null) { |
635 | 1291 // toggle visibility |
1292 isVisible = !isVisible; | |
1293 } else { | |
1294 // set visibility | |
1295 isVisible = show; | |
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1296 } |
635 | 1297 if (isVisible) { |
1298 $div.fadeIn(); | |
1299 } else { | |
1300 $div.fadeOut(); | |
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1301 } |
635 | 1302 return isVisible; |
634 | 1303 }; |
616 | 1304 |
697 | 1305 // display more (or less) button sets |
1306 var showButtons = function (data, more, setIdx, animated) { | |
711 | 1307 var atime = animated ? 'fast': 0; |
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1308 // get button width from settings |
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1309 var mode = data.settings.interactionMode; |
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1310 var btnWidth = data.settings.buttonSettings[mode].buttonSetWidth; |
697 | 1311 if (more) { |
1312 // add set | |
1313 var $otherSets = data.$elem.find('div.buttons:visible'); | |
1314 var $set; | |
1315 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
1316 // set exists | |
1317 $set = data.$buttonSets[setIdx]; | |
1318 } else { | |
1319 $set = createButtons(data, setIdx); | |
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1320 } |
697 | 1321 if ($set == null) return false; |
765 | 1322 // include border in calculation |
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1323 //var btnWidth = $set.outerWidth(); |
779 | 1324 // console.debug("btnWidth", btnWidth); |
697 | 1325 // move remaining sets left and show new set |
711 | 1326 if ($otherSets.length > 0) { |
1327 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
1328 function () {$set.show();}); | |
697 | 1329 } else { |
1330 $set.show(); | |
711 | 1331 } |
697 | 1332 } else { |
1333 // remove set | |
1334 var $set = data.$buttonSets[setIdx]; | |
1335 if ($set == null) return false; | |
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1336 //var btnWidth = $set.outerWidth(); |
697 | 1337 // hide last set |
1338 $set.hide(); | |
1339 // take remaining sets and move right | |
1340 var $otherSets = data.$elem.find('div.buttons:visible'); | |
711 | 1341 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
1342 } | |
697 | 1343 return true; |
1344 }; | |
1345 | |
765 | 1346 // check for buttons to highlight |
1347 var highlightButtons = function (data, name, on) { | |
1348 var $buttons = data.$elem.find('div.buttons:visible'); // include hidden? | |
1349 // add a class for highlighted button | |
1350 var highlight = function (name, on) { | |
1351 var $button = $buttons.find('div.button-' + name); | |
1352 if (on) { | |
1353 $button.addClass('button-on'); | |
1354 } else { | |
1355 $button.removeClass('button-on'); | |
1356 } | |
1357 }; | |
1358 if (name != null) { | |
1359 return highlight(name, on); | |
1360 } | |
1361 var flags = data.scalerFlags; | |
1362 var settings = data.settings; | |
1363 highlight('rot', settings.rot); | |
1364 highlight('brgt', settings.brgt); | |
1365 highlight('cont', settings.cont); | |
1366 highlight('bird', settings.isBirdDivVisible); | |
1367 highlight('help', settings.isAboutDivVisible); | |
1368 highlight('hmir', flags.hmir); | |
1369 highlight('vmir', flags.vmir); | |
766 | 1370 highlight('quality', flags.q1 || flags.q2); |
765 | 1371 highlight('zoomin', ! isFullArea(data.zoomArea)); |
1372 }; | |
775 | 1373 |
658
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|
1374 // create Transform from area and $img |
772
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original size mode works with zoom area now. needs error handling.
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diff
changeset
|
1375 var getImgTrafo = function ($img, area, rot, hmir, vmir, mode, data) { |
658
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|
1376 var picrect = geom.rectangle($img); |
763
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pixel-by-pixel scale mode works with zoom area. (not in all cases)
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diff
changeset
|
1377 if (mode != null) { |
772
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original size mode works with zoom area now. needs error handling.
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diff
changeset
|
1378 var imgInfo = data.imgInfo; |
763
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pixel-by-pixel scale mode works with zoom area. (not in all cases)
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|
1379 if (mode === 'pixel') { |
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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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|
1380 // scaler mo=clip - image area size does not come from ww, wh |
31664707999e
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diff
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|
1381 if (imgInfo != null) { |
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|
1382 area.width = picrect.width / imgInfo.width; |
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diff
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|
1383 area.height = picrect.height / imgInfo.height; |
31664707999e
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diff
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|
1384 } else { |
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diff
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|
1385 console.error("No image info for pixel mode!"); |
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|
1386 } |
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diff
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|
1387 } |
772
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original size mode works with zoom area now. needs error handling.
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|
1388 if (mode === 'size') { |
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|
1389 // scaler mo=osize - image area size does not come from ww, wh |
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original size mode works with zoom area now. needs error handling.
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|
1390 if (imgInfo != null) { |
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|
1391 var ddpi = parseFloat(data.settings.ddpi); |
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|
1392 area.width = (picrect.width / ddpi) / (imgInfo.width / imgInfo.dpi_x); |
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|
1393 area.height = (picrect.height / ddpi) / (imgInfo.height / imgInfo.dpi_y); |
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|
1394 } else { |
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|
1395 console.error("No image info for original size mode!"); |
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|
1396 } |
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original size mode works with zoom area now. needs error handling.
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|
1397 } |
763
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|
1398 } |
658
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|
1399 var trafo = geom.transform(); |
675 | 1400 // move zoom area offset to center |
658
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|
1401 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
675 | 1402 // scale zoom area size to [1,1] |
658
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|
1403 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
675 | 1404 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
1405 if (rot || hmir || vmir) { | |
1406 // move [0.5,0.5] to center | |
1407 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
1408 if (hmir) { | |
1409 // mirror about center | |
1410 trafo.concat(trafo.getMirror('y')); | |
713
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|
1411 } |
675 | 1412 if (vmir) { |
1413 // mirror about center | |
1414 trafo.concat(trafo.getMirror('x')); | |
713
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|
1415 } |
675 | 1416 if (rot) { |
1417 // rotate around center | |
1418 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
713
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|
1419 } |
675 | 1420 // move back |
1421 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
713
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diff
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|
1422 } |
664
d5a5ee4cbf04
work on getting transformation to work with rotation (currently still doesn't)
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diff
changeset
|
1423 // scale to screen position and size |
658
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diff
changeset
|
1424 trafo.concat(trafo.getScale(picrect)); |
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diff
changeset
|
1425 trafo.concat(trafo.getTranslation(picrect)); |
9ddcf0070122
split bird's view code in two more parts, analog to scaler-img code.
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diff
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|
1426 return trafo; |
655 | 1427 }; |
678
d50d24b7fd95
first step at dragging birdview zoom indicator around
hertzhaft
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diff
changeset
|
1428 |
767 | 1429 // update scaler image transform |
1430 var updateImgTrafo = function (data) { | |
1431 var $img = data.$img; | |
895 | 1432 if ($img == null) |
1433 return; | |
1434 var image = $img.get(0); | |
1435 var imgLoaded = $.browser.msie | |
1436 ? image.width > 0 | |
1437 : image.complete; | |
1438 if (imgLoaded) { | |
760
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primitive plugin extension mechanism - unsure how useful this is
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diff
changeset
|
1439 // create Transform from current zoomArea and image size |
675 | 1440 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
763
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|
1441 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir, |
772
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|
1442 data.scaleMode, data); |
760
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primitive plugin extension mechanism - unsure how useful this is
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|
1443 // console.debug("imgTrafo=", data.imgTrafo); |
767 | 1444 } |
1445 }; | |
775 | 1446 |
797 | 1447 // returns handler for load event of scaler img |
767 | 1448 var scalerImgLoadedHandler = function (data) { |
1449 return function () { | |
1450 var $img = $(this); | |
1451 console.debug("scaler img loaded=",$img); | |
1452 var $scaler = data.$scaler; | |
760
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diff
changeset
|
1453 var imgRect = geom.rectangle($img); |
733 | 1454 // adjust scaler div size |
738 | 1455 imgRect.adjustDiv($scaler); |
715 | 1456 // show image in case it was hidden (for example in zoomDrag) |
733 | 1457 $img.css('visibility', 'visible'); |
741 | 1458 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
767 | 1459 // update display (render marks, etc.) |
1460 updateDisplay(data); | |
658
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|
1461 }; |
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split bird's view code in two more parts, analog to scaler-img code.
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|
1462 }; |
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|
1463 |
797 | 1464 // handler for imageInfo loaded event |
1465 var handleImageInfo = function (evt, json) { | |
917 | 1466 console.debug("handleImageInfo:", json); |
797 | 1467 var data = this; |
1468 updateDisplay(data); | |
1469 }; | |
813 | 1470 |
633 | 1471 // place marks on the image |
1472 var renderMarks = function (data) { | |
767 | 1473 if (data.$img == null || data.imgTrafo == null) return; |
850
47a6b93bde43
always show html-defined regions. wrong pos still not fixed
hertzhaft
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849
diff
changeset
|
1474 console.debug("renderMarks: img=",data.$img," imgtrafo=",data.imgTrafo); |
647 | 1475 var $elem = data.$elem; |
643 | 1476 var marks = data.marks; |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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diff
changeset
|
1477 // clear marks |
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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diff
changeset
|
1478 $elem.find('div.mark').remove(); |
633 | 1479 for (var i = 0; i < marks.length; i++) { |
1480 var mark = marks[i]; | |
643 | 1481 if (data.zoomArea.containsPosition(mark)) { |
633 | 1482 var mpos = data.imgTrafo.transform(mark); |
851 | 1483 console.debug("renderMarks: pos=",mpos); |
633 | 1484 // create mark |
813 | 1485 var html = '<div class="mark overlay">'+(i+1)+'</div>'; |
633 | 1486 var $mark = $(html); |
850
47a6b93bde43
always show html-defined regions. wrong pos still not fixed
hertzhaft
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849
diff
changeset
|
1487 $mark.attr("id", "digilib-mark-"+(i+1)); |
633 | 1488 $elem.append($mark); |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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741
diff
changeset
|
1489 mpos.adjustDiv($mark); |
713
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more cosmetics: added options to validate with http://www.jslint.com
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diff
changeset
|
1490 } |
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diff
changeset
|
1491 } |
633 | 1492 }; |
655 | 1493 |
647 | 1494 // zooms by the given factor |
643 | 1495 var zoomBy = function(data, factor) { |
1496 var area = data.zoomArea; | |
1497 var newarea = area.copy(); | |
1498 // scale | |
1499 newarea.width /= factor; | |
1500 newarea.height /= factor; | |
1501 // and recenter | |
1502 newarea.x -= 0.5 * (newarea.width - area.width); | |
1503 newarea.y -= 0.5 * (newarea.height - area.height); | |
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1504 newarea = FULL_AREA.fit(newarea); |
643 | 1505 data.zoomArea = newarea; |
644
ee8ccd84c5f8
reload doesn't take list of changed parameters any more
robcast
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643
diff
changeset
|
1506 redisplay(data); |
643 | 1507 }; |
1508 | |
647 | 1509 // add a mark where clicked |
1510 var setMark = function (data) { | |
649 | 1511 var $scaler = data.$scaler; |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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741
diff
changeset
|
1512 // unbind other handler |
917 | 1513 $scaler.off(".dlZoomDrag"); |
647 | 1514 // start event capturing |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1515 $scaler.one('mousedown.dlSetMark', function (evt) { |
647 | 1516 // event handler adding a new mark |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1517 console.log("setmark at=", evt); |
672
7f7536a5b6d9
image transform works now under rotation!!! (at least for multiples of 90deg)
robcast
parents:
671
diff
changeset
|
1518 var mpos = geom.position(evt); |
647 | 1519 var pos = data.imgTrafo.invtransform(mpos); |
1520 data.marks.push(pos); | |
1521 redisplay(data); | |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
changeset
|
1522 return false; |
647 | 1523 }); |
1524 }; | |
668 | 1525 |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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741
diff
changeset
|
1526 // zoom to the area around two clicked points |
654 | 1527 var zoomArea = function(data) { |
1528 $elem = data.$elem; | |
1529 $scaler = data.$scaler; | |
1530 var pt1, pt2; | |
1531 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
1532 $elem.append($zoomDiv); | |
775 | 1533 // $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 1534 var picRect = geom.rectangle($scaler); |
1535 // FIX ME: is there a way to query the border width from CSS info? | |
1536 // rect.x -= 2; // account for overlay borders | |
1537 // rect.y -= 2; | |
1538 | |
1539 var zoomStart = function (evt) { | |
1540 pt1 = geom.position(evt); | |
1541 // setup and show zoom div | |
738 | 1542 pt1.adjustDiv($zoomDiv); |
668 | 1543 $zoomDiv.width(0).height(0); |
654 | 1544 $zoomDiv.show(); |
1545 // register events | |
917 | 1546 $elem.on("mousemove.dlZoomArea", zoomMove); |
1547 $elem.on("mouseup.dlZoomArea", zoomEnd); | |
654 | 1548 return false; |
1549 }; | |
668 | 1550 |
741 | 1551 // mouse move handler |
1552 var zoomMove = function (evt) { | |
1553 pt2 = geom.position(evt); | |
1554 var rect = geom.rectangle(pt1, pt2); | |
1555 rect.clipTo(picRect); | |
1556 // update zoom div | |
1557 rect.adjustDiv($zoomDiv); | |
1558 return false; | |
1559 }; | |
745
ad483c008159
move birdview zoom indicator along with zoom drag
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diff
changeset
|
1560 |
654 | 1561 // mouseup handler: end moving |
1562 var zoomEnd = function (evt) { | |
1563 pt2 = geom.position(evt); | |
1564 // assume a click and continue if the area is too small | |
1565 var clickRect = geom.rectangle(pt1, pt2); | |
710 | 1566 if (clickRect.getArea() <= 5) return false; |
654 | 1567 // hide zoom div |
1568 $zoomDiv.remove(); | |
1569 // unregister events | |
917 | 1570 $elem.off("mousemove.dlZoomArea", zoomMove); |
1571 $elem.off("mouseup.dlZoomArea", zoomEnd); | |
654 | 1572 // clip and transform |
1573 clickRect.clipTo(picRect); | |
1574 var area = data.imgTrafo.invtransform(clickRect); | |
1575 data.zoomArea = area; | |
1576 // zoomed is always fit | |
1577 data.settings.ws = 1; | |
738 | 1578 delete data.dlOpts.fitwidth; |
1579 delete data.dlOpts.fitheight; | |
654 | 1580 redisplay(data); |
1581 return false; | |
1582 }; | |
668 | 1583 |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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741
diff
changeset
|
1584 // clear old handler (also ZoomDrag) |
917 | 1585 $scaler.off('.dlZoomArea'); |
1586 $scaler.off(".dlZoomDrag"); | |
1587 $elem.off('.dlZoomArea'); | |
654 | 1588 // bind start zoom handler |
738 | 1589 $scaler.one('mousedown.dlZoomArea', zoomStart); |
654 | 1590 }; |
647 | 1591 |
746
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move zoom-drag background along with birdview indicator
hertzhaft
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diff
changeset
|
1592 // set zoom background |
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1593 var setZoomBG = function(data) { |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1594 var $scaler = data.$scaler; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1595 var $img = data.$img; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1596 var fullRect = null; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1597 // hide the scaler img, show background of div instead |
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1598 $img.css('visibility', 'hidden'); |
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
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917
diff
changeset
|
1599 // use current image as first background |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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745
diff
changeset
|
1600 var scalerCss = { |
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1601 'background-image' : 'url(' + $img.attr('src') + ')', |
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1602 'background-repeat' : 'no-repeat', |
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1603 'background-position' : 'left top', |
918
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use current size background as well as scaled full-size background when dragging
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diff
changeset
|
1604 'opacity' : '0.7', |
746
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1605 'cursor' : 'move' |
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1606 }; |
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1607 if (data.hasBgSize) { |
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
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diff
changeset
|
1608 // additional full-size background using CSS3-background-size |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
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745
diff
changeset
|
1609 fullRect = data.imgTrafo.transform(FULL_AREA); |
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1610 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) { |
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move zoom-drag background along with birdview indicator
hertzhaft
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diff
changeset
|
1611 // correct offset because background is relative |
751
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
748
diff
changeset
|
1612 var scalerPos = geom.position($scaler); |
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
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748
diff
changeset
|
1613 fullRect.addPosition(scalerPos.neg()); |
795 | 1614 var url = getBgImgUrl(data); |
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1615 // add background url, size and position |
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1616 scalerCss['background-image'] += ', url(' + url + ')'; |
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1617 scalerCss[data.bgSizeName] = 'auto, ' + fullRect.width + 'px ' + fullRect.height + 'px'; |
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1618 scalerCss['background-position'] += ', ' + fullRect.x + 'px '+ fullRect.y + 'px'; |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1619 } else { |
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1620 // scaled full-size background image too big |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1621 fullRect = null; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1622 } |
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1623 } |
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1624 $scaler.css(scalerCss); |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1625 return fullRect; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1626 }; |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1627 |
738 | 1628 // setup handlers for dragging the zoomed image |
705 | 1629 var setupZoomDrag = function(data) { |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1630 var startPos, delta, fullRect; |
733 | 1631 var $document = $(document); |
795 | 1632 var $data = $(data); |
705 | 1633 var $elem = data.$elem; |
1634 var $scaler = data.$scaler; | |
1635 var $img = data.$img; | |
710 | 1636 |
733 | 1637 // drag the image and load a new detail on mouse up |
705 | 1638 var dragStart = function (evt) { |
813 | 1639 console.debug("dragstart at=", evt); |
737
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
736
diff
changeset
|
1640 // don't start dragging if not zoomed |
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
736
diff
changeset
|
1641 if (isFullArea(data.zoomArea)) return false; |
813 | 1642 $elem.find(".overlay").hide(); // hide all overlays (marks/regions) |
733 | 1643 startPos = geom.position(evt); |
741 | 1644 delta = null; |
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1645 // set low res background immediately on mousedown |
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
hertzhaft
parents:
745
diff
changeset
|
1646 fullRect = setZoomBG(data); |
917 | 1647 $document.on("mousemove.dlZoomDrag", dragMove); |
1648 $document.on("mouseup.dlZoomDrag", dragEnd); | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1649 return false; |
705 | 1650 }; |
745
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1651 |
733 | 1652 // mousemove handler: drag zoomed image |
705 | 1653 var dragMove = function (evt) { |
1654 var pos = geom.position(evt); | |
741 | 1655 delta = startPos.delta(pos); |
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1656 // background position |
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1657 var bgPos = delta.x + "px " + delta.y + "px"; |
741 | 1658 if (fullRect) { |
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1659 // add full-size background position |
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1660 var bp = fullRect.getPosition().add(delta); |
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1661 bgPos += ', ' + bp.x + "px " + bp.y + "px"; |
741 | 1662 } |
705 | 1663 // move the background image to the new position |
918
f7869186ccb2
use current size background as well as scaled full-size background when dragging
robcast
parents:
917
diff
changeset
|
1664 $scaler.css('background-position', bgPos); |
807
1b1728926534
geometry: overlapsRect() plus some comment clarifications
hertzhaft
parents:
799
diff
changeset
|
1665 // send message event with current zoom position |
745
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1666 var za = geom.rectangle($img); |
ad483c008159
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
744
diff
changeset
|
1667 za.addPosition(delta.neg()); |
795 | 1668 $data.trigger('dragZoom', [za]); |
705 | 1669 return false; |
1670 }; | |
710 | 1671 |
733 | 1672 // mouseup handler: reload zoomed image in new position |
705 | 1673 var dragEnd = function (evt) { |
739 | 1674 $scaler.css('cursor', 'auto'); |
917 | 1675 $document.off("mousemove.dlZoomDrag", dragMove); |
1676 $document.off("mouseup.dlZoomDrag", dragEnd); | |
733 | 1677 if (delta == null || delta.distance() < 2) { |
1678 // no movement | |
1679 $img.css('visibility', 'visible'); | |
741 | 1680 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
767 | 1681 // unhide marks |
1682 data.$elem.find('div.mark').show(); | |
813 | 1683 $(data).trigger('redisplay'); |
733 | 1684 return false; |
1685 } | |
1686 // get old zoom area (screen coordinates) | |
741 | 1687 var za = geom.rectangle($img); |
733 | 1688 // move |
741 | 1689 za.addPosition(delta.neg()); |
733 | 1690 // transform back |
1691 var newArea = data.imgTrafo.invtransform(za); | |
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1692 data.zoomArea = FULL_AREA.fit(newArea); |
708
120ace160386
img reload works for fullscreen, but somehow not precise
hertzhaft
parents:
707
diff
changeset
|
1693 redisplay(data); |
705 | 1694 return false; |
1695 }; | |
735
790a7673bef0
improved some embedded buttons; fixed reset function
hertzhaft
parents:
733
diff
changeset
|
1696 |
733 | 1697 // clear old handler |
917 | 1698 $document.off(".dlZoomDrag"); |
1699 $scaler.off(".dlZoomDrag"); | |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1700 if (! isFullArea(data.zoomArea)) { |
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1701 // set handler |
917 | 1702 $scaler.on("mousedown.dlZoomDrag", dragStart); |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1703 } |
705 | 1704 }; |
1705 | |
703 | 1706 // get image quality as a number (0..2) |
1707 var getQuality = function (data) { | |
1708 var flags = data.scalerFlags; | |
1709 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
1710 return parseInt(q[1], 10); | |
706 | 1711 }; |
703 | 1712 |
1713 // set image quality as a number (0..2) | |
1714 var setQuality = function (data, qual) { | |
1715 var flags = data.scalerFlags; | |
1716 // clear flags | |
1717 for (var i = 0; i < 3; ++i) { | |
1718 delete flags['q'+i]; | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1719 } |
703 | 1720 flags['q'+qual] = 'q'+qual; |
706 | 1721 }; |
710 | 1722 |
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1723 // get image scale mode (screen, pixel, size) |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1724 var getScaleMode = function (data) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1725 if (data.scalerFlags.clip != null) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1726 return 'pixel'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1727 } else if (data.scalerFlags.osize != null) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1728 return 'size'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1729 } |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1730 // mo=fit is default |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1731 return 'screen'; |
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 // set image scale mode (screen, pixel, size) |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1735 var setScaleMode = function (data, mode) { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1736 delete data.scalerFlags.fit; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1737 delete data.scalerFlags.clip; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1738 delete data.scalerFlags.osize; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1739 if (mode === 'pixel') { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1740 data.scalerFlags.clip = 'clip'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1741 } else if (mode === 'size') { |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1742 data.scalerFlags.osize = 'osize'; |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1743 } |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1744 // mo=fit is default |
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1745 }; |
775 | 1746 |
761
16778bd2de7c
added setScaleMode. no compensation for change in scaling yet.
robcast
parents:
760
diff
changeset
|
1747 // sets a key to a value (relative values with +/- if relative=true) |
650 | 1748 var setNumValue = function(settings, key, value) { |
716 | 1749 if (value == null) return null; |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1750 if (isNumber(value)) { |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1751 settings[key] = value; |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1752 return value; |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1753 } |
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1754 var sign = value[0]; |
650 | 1755 if (sign === '+' || sign === '-') { |
1756 if (settings[key] == null) { | |
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1757 // this isn't perfect but still... |
650 | 1758 settings[key] = 0; |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1759 } |
650 | 1760 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
1761 } else { | |
1762 settings[key] = value; | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1763 } |
650 | 1764 return settings[key]; |
1765 }; | |
655 | 1766 |
775 | 1767 // auxiliary function, assuming equal border width on all sides |
1768 var getBorderWidth = function($elem) { | |
1769 var border = $elem.outerWidth() - $elem.width(); | |
1770 return border/2; | |
1771 }; | |
1772 | |
878 | 1773 // auxiliary function, can the current zoomarea be moved further? |
1774 var canMove = function(data, movx, movy) { | |
1775 var za = data.zoomArea; | |
1776 if (isFullArea(za)) return false; | |
1777 var x2 = za.x + za.width; | |
1778 var y2 = za.y + za.height; | |
1779 return ((movx < 0) && (za.x > 0)) | |
1780 || ((movx > 0) && (x2 < 1.0)) | |
1781 || ((movy < 0) && (za.y > 0)) | |
1782 || ((movy > 0) && (y2 < 1.0)) | |
1783 }; | |
1784 | |
655 | 1785 // auxiliary function (from old dllib.js) |
795 | 1786 var isFullArea = function (area) { |
659 | 1787 return (area.width === 1.0) && (area.height === 1.0); |
655 | 1788 }; |
1789 | |
641 | 1790 // auxiliary function (from Douglas Crockford, A.10) |
795 | 1791 var isNumber = function (value) { |
710 | 1792 return typeof value === 'number' && isFinite(value); |
641 | 1793 }; |
655 | 1794 |
631 | 1795 // auxiliary function to crop senseless precision |
1796 var cropFloat = function (x) { | |
637 | 1797 return parseInt(10000 * x, 10) / 10000; |
631 | 1798 }; |
655 | 1799 |
813 | 1800 // idem, string version |
1801 var cropFloatStr = function (x) { | |
1802 return cropFloat(x).toString(); | |
1803 }; | |
1804 | |
692 | 1805 // fallback for console.log calls |
1806 if (customConsole) { | |
1807 var logFunction = function(type) { | |
1808 return function(){ | |
1809 var $debug = $('#debug'); // debug div | |
1810 if (!$debug) return; | |
1811 var args = Array.prototype.slice.call(arguments); | |
1812 var argtext = args.join(' '); | |
1813 var $logDiv = $('<div/>'); | |
1814 $logDiv.addClass(type); | |
1815 $logDiv.text(argtext); | |
1816 $debug.append($logDiv); | |
1817 }; | |
1818 }; | |
1819 console.log = logFunction('_log'); | |
1820 console.debug = logFunction('_debug'); | |
1821 console.error = logFunction('_error'); | |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1822 } |
692 | 1823 |
787 | 1824 // functions to export to plugins |
1825 fn = { | |
791 | 1826 geometry : geom, |
787 | 1827 parseQueryString : parseQueryString, |
1828 getScalerUrl : getScalerUrl, | |
1829 getParamString : getParamString, | |
1830 getDigilibUrl : getDigilibUrl, | |
1831 unpackParams : unpackParams, | |
1832 packParams : packParams, | |
822 | 1833 packArea : packArea, |
1834 packMarks : packMarks, | |
1835 packScalerFlags : packScalerFlags, | |
795 | 1836 storeOptions : storeOptions, |
787 | 1837 redisplay : redisplay, |
1838 updateDisplay : updateDisplay, | |
795 | 1839 highlightButtons : highlightButtons, |
791 | 1840 showDiv : showDiv, |
795 | 1841 setZoomBG : setZoomBG, |
787 | 1842 getImgTrafo : getImgTrafo, |
1843 getQuality : getQuality, | |
1844 setQuality : setQuality, | |
1845 getScaleMode : getScaleMode, | |
1846 setScaleMode : setScaleMode, | |
878 | 1847 canMove : canMove, |
795 | 1848 isFullArea : isFullArea, |
813 | 1849 isNumber : isNumber, |
1850 getBorderWidth : getBorderWidth, | |
1851 cropFloat : cropFloat, | |
1852 cropFloatStr : cropFloatStr | |
787 | 1853 }; |
788 | 1854 |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1855 // hook digilib plugin into jquery |
785 | 1856 $.fn.digilib = function (action) { |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1857 // plugin extension mechanism, called when the plugins' code is read |
786 | 1858 if (action === 'plugin') { |
1859 var plugin = arguments[1]; | |
1860 // each plugin needs a name | |
1861 if (plugin.name != null) { | |
1862 plugins[plugin.name] = plugin; | |
793
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1863 // share common objects |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1864 plugin.defaults = defaults; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1865 plugin.buttons = buttons; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1866 plugin.actions = actions; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1867 plugin.fn = fn; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1868 plugin.plugins = plugins; |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1869 // and install |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1870 if (typeof plugin.install === 'function') { |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1871 plugin.install(plugin); |
63c1b33e38b1
documentation for new plugin api in jquery-digilib-plugin.txt.
robcast
parents:
791
diff
changeset
|
1872 } |
786 | 1873 } |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1874 // 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
|
1875 } else if (actions[action]) { |
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1876 // 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
|
1877 var $elem = $(this); |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1878 var data = $elem.data('digilib'); |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1879 var args = Array.prototype.slice.call(arguments, 1); |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1880 args.unshift(data); |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1881 return actions[action].apply(this, args); |
798
b07d1824ca2a
fullscreen mode works without reload on browsers supporting history.pushstate!
robcast
parents:
797
diff
changeset
|
1882 } else if (typeof action === 'object' || !action) { |
799
12f790cb30de
started to adapt regions plugin to new plugin mechanism
hertzhaft
parents:
798
diff
changeset
|
1883 // call init on the digilib jQuery object |
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
650
diff
changeset
|
1884 return actions.init.apply(this, arguments); |
605 | 1885 } else { |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
711
diff
changeset
|
1886 $.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
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1887 } |
605 | 1888 }; |
692 | 1889 |
604 | 1890 })(jQuery); |