Mercurial > hg > digilib-old
annotate client/digitallibrary/jquery/jquery.digilib.js @ 738:b4460f0a540d jquery
small improvements
author | robcast |
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date | Wed, 02 Feb 2011 14:17:52 +0100 |
parents | 7c93bdbb5153 |
children | 922c74a7b935 |
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 * |
604 | 23 */ |
655 | 24 |
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25 /*jslint browser: true, debug: true, forin: true */ |
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26 |
636 | 27 // fallback for console.log calls |
28 if (typeof(console) === 'undefined') { | |
29 var console = { | |
692 | 30 log : function(){}, |
31 debug : function(){}, | |
32 error : function(){} | |
33 }; | |
34 var customConsole = true; | |
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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", |
42 img : "reference.png" | |
43 }, | |
44 zoomin : { | |
643 | 45 onclick : ["zoomBy", 1.4], |
610 | 46 tooltip : "zoom in", |
47 img : "zoom-in.png" | |
48 }, | |
49 zoomout : { | |
643 | 50 onclick : ["zoomBy", 0.7], |
610 | 51 tooltip : "zoom out", |
52 img : "zoom-out.png" | |
53 }, | |
54 zoomarea : { | |
654 | 55 onclick : "zoomArea", |
610 | 56 tooltip : "zoom area", |
57 img : "zoom-area.png" | |
58 }, | |
59 zoomfull : { | |
650 | 60 onclick : "zoomFull", |
610 | 61 tooltip : "view the whole image", |
62 img : "zoom-full.png" | |
63 }, | |
64 pagewidth : { | |
650 | 65 onclick : ["zoomFull", "width"], |
610 | 66 tooltip : "page width", |
67 img : "pagewidth.png" | |
68 }, | |
69 back : { | |
623 | 70 onclick : ["gotoPage", "-1"], |
610 | 71 tooltip : "goto previous image", |
72 img : "back.png" | |
73 }, | |
74 fwd : { | |
623 | 75 onclick : ["gotoPage", "+1"], |
610 | 76 tooltip : "goto next image", |
77 img : "fwd.png" | |
78 }, | |
79 page : { | |
716 | 80 onclick : "gotoPage", |
81 tooltip : "goto image number", | |
610 | 82 img : "page.png" |
83 }, | |
84 bird : { | |
635 | 85 onclick : "showBirdDiv", |
610 | 86 tooltip : "show bird's eye view", |
87 img : "birds-eye.png" | |
88 }, | |
89 help : { | |
635 | 90 onclick : "showAboutDiv", |
610 | 91 tooltip : "about Digilib", |
92 img : "help.png" | |
93 }, | |
94 reset : { | |
688 | 95 onclick : "reset", |
610 | 96 tooltip : "reset image", |
97 img : "reset.png" | |
98 }, | |
99 mark : { | |
647 | 100 onclick : "setMark", |
610 | 101 tooltip : "set a mark", |
102 img : "mark.png" | |
103 }, | |
104 delmark : { | |
650 | 105 onclick : "removeMark", |
610 | 106 tooltip : "delete the last mark", |
107 img : "delmark.png" | |
108 }, | |
109 hmir : { | |
661 | 110 onclick : ["mirror", "h"], |
610 | 111 tooltip : "mirror horizontally", |
112 img : "mirror-horizontal.png" | |
113 }, | |
114 vmir : { | |
661 | 115 onclick : ["mirror", "v"], |
610 | 116 tooltip : "mirror vertically", |
117 img : "mirror-vertical.png" | |
118 }, | |
119 rot : { | |
663 | 120 onclick : "rotate", |
610 | 121 tooltip : "rotate image", |
122 img : "rotate.png" | |
123 }, | |
124 brgt : { | |
663 | 125 onclick : "brightness", |
610 | 126 tooltip : "set brightness", |
127 img : "brightness.png" | |
128 }, | |
129 cont : { | |
663 | 130 onclick : "contrast", |
610 | 131 tooltip : "set contrast", |
132 img : "contrast.png" | |
133 }, | |
134 rgb : { | |
135 onclick : "javascript:setParamWin('rgb', '...')", | |
136 tooltip : "set rgb values", | |
137 img : "rgb.png" | |
138 }, | |
139 quality : { | |
703 | 140 onclick : "setquality", |
610 | 141 tooltip : "set image quality", |
142 img : "quality.png" | |
143 }, | |
144 size : { | |
145 onclick : "javascript:toggleSizeMenu()", | |
146 tooltip : "set page size", | |
147 img : "size.png" | |
148 }, | |
149 calibrationx : { | |
150 onclick : "javascript:calibrate('x')", | |
151 tooltip : "calibrate screen x-ratio", | |
152 img : "calibration-x.png" | |
153 }, | |
154 scale : { | |
155 onclick : "javascript:toggleScaleMenu()", | |
156 tooltip : "change image scale", | |
157 img : "original-size.png" | |
158 }, | |
699 | 159 toggleoptions : { |
160 onclick : "morebuttons", | |
161 tooltip : "more options", | |
162 img : "options.png" | |
163 }, | |
690 | 164 moreoptions : { |
165 onclick : ["morebuttons", "+1"], | |
166 tooltip : "more options", | |
167 img : "options.png" | |
168 }, | |
169 lessoptions : { | |
170 onclick : ["morebuttons", "-1"], | |
171 tooltip : "less options", | |
610 | 172 img : "options.png" |
173 }, | |
174 SEP : { | |
175 img : "sep.png" | |
176 } | |
177 }; | |
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178 |
605 | 179 var defaults = { |
616 | 180 // version of this script |
635 | 181 'version' : 'jquery.digilib.js 0.9', |
616 | 182 // logo url |
183 'logoUrl' : '../img/digilib-logo-text1.png', | |
635 | 184 // homepage url (behind logo) |
185 'homeUrl' : 'http://digilib.berlios.de', | |
610 | 186 // base URL to Scaler servlet |
652 | 187 'scalerBaseUrl' : null, |
610 | 188 // list of Scaler parameters |
627 | 189 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
190 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
191 // Scaler parameter defaults | |
643 | 192 'pn' : 1, |
627 | 193 'ww' : 1.0, |
194 'wh' : 1.0, | |
195 'wx' : 0.0, | |
196 'wy' : 0.0, | |
197 'ws' : 1.0, | |
643 | 198 'mo' : '', |
199 'rot' : 0, | |
200 'cont' : 0, | |
201 'brgt' : 0, | |
202 'rgbm' : '0/0/0', | |
203 'rgba' : '0/0/0', | |
204 'ddpi' : null, | |
205 'ddpix' : null, | |
206 'ddpiy' : null, | |
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207 // list of digilib parameters |
650 | 208 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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209 // digilib parameter defaults |
643 | 210 'mk' : '', |
650 | 211 'clop' : '', |
643 | 212 // mode of operation: |
213 // fullscreen = take parameters from page URL, keep state in page URL | |
214 // embedded = take parameters from Javascript options, keep state inside object | |
610 | 215 'interactionMode' : 'fullscreen', |
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216 // buttons |
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217 'buttons' : buttons, |
668 | 218 // defaults for digilib buttons |
665 | 219 'buttonSettings' : { |
220 'fullscreen' : { | |
668 | 221 // path to button images (must end with a slash) |
665 | 222 'imagePath' : 'img/fullscreen/', |
721 | 223 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","help","reset","toggleoptions"], |
224 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","toggleoptions"], | |
682 | 225 'buttonSets' : ['standardSet', 'specialSet'] |
665 | 226 }, |
227 'embedded' : { | |
228 'imagePath' : 'img/embedded/16/', | |
721 | 229 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","back","fwd","page","bird","help","reset","toggleoptions"], |
230 'specialSet' : ["hmir","vmir","rot","brgt","cont","rgb","quality","size","toggleoptions"], | |
682 | 231 'buttonSets' : ['standardSet', 'specialSet'] |
665 | 232 } |
697 | 233 }, |
234 // number of visible button groups | |
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235 'visibleButtonSets' : 1, |
616 | 236 // is birdView shown? |
237 'isBirdDivVisible' : false, | |
668 | 238 // dimensions of bird's eye div |
674 | 239 'birdDivWidth' : 200, |
240 'birdDivHeight' : 200, | |
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241 // parameters used by bird's eye div |
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242 'birdDivParams' : ['fn','pn','dw','dh'], |
668 | 243 // style of the zoom area indicator in the bird's eye div |
659 | 244 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
668 | 245 // style of zoom area "rubber band" |
246 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
616 | 247 // is the "about" window shown? |
248 'isAboutDivVisible' : false | |
249 | |
610 | 250 }; |
655 | 251 |
608 | 252 // affine geometry classes |
253 var geom = dlGeometry(); | |
655 | 254 |
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255 var FULL_AREA = geom.rectangle(0, 0, 1, 1); |
655 | 256 |
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257 var actions = { |
668 | 258 // init: digilib initialization |
259 init : function(options) { | |
260 // settings for this digilib instance are merged from defaults and options | |
261 var settings = $.extend({}, defaults, options); | |
262 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
263 var queryParams = {}; | |
264 if (isFullscreen) { | |
265 queryParams = parseQueryParams(); | |
266 // check scalerBaseUrl | |
267 if (settings.scalerBaseUrl == null) { | |
268 // try the host this came from | |
269 var h = window.location.host; | |
270 if (window.location.host) { | |
271 var url = window.location.href; | |
272 // assume the page lives in [webapp]/jquery/ | |
273 var pos = url.indexOf('jquery/'); | |
274 if (pos > 0) { | |
275 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
652 | 276 } |
277 } | |
636 | 278 } |
668 | 279 } |
280 return this.each(function() { | |
281 var $elem = $(this); | |
282 var data = $elem.data('digilib'); | |
688 | 283 var params, elemSettings; |
668 | 284 // if the plugin hasn't been initialized yet |
285 if (!data) { | |
286 // merge query parameters | |
287 if (isFullscreen) { | |
688 | 288 params = queryParams; |
668 | 289 } else { |
688 | 290 params = parseImgParams($elem); |
727 | 291 if (jQuery.cookie) { |
292 // retrieve params from cookie | |
293 var ck = "digilib-embed:fn:" + escape(params.fn) + ":pn:" + (params.pn || '1'); | |
294 var cs = jQuery.cookie(ck); | |
295 console.debug("get cookie=", ck, " value=", cs); | |
296 if (cs) { | |
297 var cp = parseQueryString(cs); | |
728 | 298 // ignore fn and pn from cookie TODO: should we keep pn? |
299 delete cp.fn; | |
300 delete cp.pn; | |
301 jQuery.extend(params, cp); | |
727 | 302 } |
303 } | |
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304 } |
668 | 305 // store $(this) element in the settings |
728 | 306 elemSettings = jQuery.extend({}, settings, params); |
697 | 307 data = { |
668 | 308 $elem : $elem, |
309 settings : elemSettings, | |
688 | 310 queryParams : params |
668 | 311 }; |
312 // store in data element | |
313 $elem.data('digilib', data); | |
314 } | |
315 unpackParams(data); | |
682 | 316 // create HTML structure for scaler |
668 | 317 setupScalerDiv(data); |
697 | 318 // add buttons |
319 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { | |
320 showButtons(data, true, i); | |
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321 } |
668 | 322 // bird's eye view creation |
710 | 323 if (elemSettings.isBirdDivVisible) { |
638 | 324 setupBirdDiv(data); |
723 | 325 data.$birdDiv.show(); |
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326 } |
668 | 327 // about window creation - TODO: could be deferred? restrict to only one item? |
328 setupAboutDiv(data); | |
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329 // drag zoom area around in scaler div |
707 | 330 setupZoomDrag(data); |
668 | 331 }); |
332 }, | |
333 | |
334 // destroy: clean up digilib | |
335 destroy : function(data) { | |
336 return this.each(function(){ | |
337 var $elem = $(this); | |
338 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
339 data.digilib.remove(); | |
340 $elem.removeData('digilib'); | |
341 }); | |
342 }, | |
343 | |
344 // show or hide the 'about' window | |
345 showAboutDiv : function(data, show) { | |
346 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
347 }, | |
655 | 348 |
668 | 349 // event handler: toggles the visibility of the bird's eye window |
350 showBirdDiv : function (data, show) { | |
726 | 351 var settings = data.settings; |
668 | 352 if (data.$birdDiv == null) { |
353 // no bird div -> create | |
354 setupBirdDiv(data); | |
355 } | |
726 | 356 settings.isBirdDivVisible = showDiv(settings.isBirdDivVisible, data.$birdDiv, show); |
357 updateBirdDiv(data); | |
723 | 358 storeOptions(data); |
359 // data.$birdImg.triggerHandler('load'); // TODO: we shouldn't do that | |
668 | 360 }, |
361 | |
362 // goto given page nr (+/-: relative) | |
363 gotoPage : function (data, pageNr) { | |
364 var settings = data.settings; | |
365 var oldpn = settings.pn; | |
716 | 366 if (pageNr == null) { |
367 pageNr = window.prompt("Goto page number", oldpn); | |
368 } | |
668 | 369 var pn = setNumValue(settings, "pn", pageNr); |
370 if (pn == null) return false; // nothing happened | |
371 if (pn < 1) { | |
372 alert("no such page (page number too low)"); | |
373 settings.pn = oldpn; | |
374 return false; | |
375 } | |
376 if (settings.pt) { | |
377 if (pn > settings.pt) { | |
378 alert("no such page (page number too high)"); | |
623 | 379 settings.pn = oldpn; |
380 return false; | |
634 | 381 } |
668 | 382 } |
383 // reset mk and others(?) | |
384 data.marks = []; | |
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385 data.zoomArea = FULL_AREA; |
668 | 386 // then reload |
387 redisplay(data); | |
388 }, | |
654 | 389 |
668 | 390 // zoom by a given factor |
391 zoomBy : function (data, factor) { | |
392 zoomBy(data, factor); | |
393 }, | |
647 | 394 |
668 | 395 // zoom interactively |
396 zoomArea : function (data) { | |
397 zoomArea(data); | |
398 }, | |
650 | 399 |
668 | 400 // zoom out to full page |
401 zoomFull : function (data, mode) { | |
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402 data.zoomArea = FULL_AREA; |
668 | 403 if (mode === 'width') { |
404 data.dlOpts.fitwidth = 1; | |
405 delete data.dlOpts.fitheight; | |
406 } else if (mode === 'height') { | |
407 data.dlOpts.fitheight = 1; | |
408 delete data.dlOpts.fitwidth; | |
409 } else { | |
410 delete data.dlOpts.fitwidth; | |
411 delete data.dlOpts.fitheight; | |
412 } | |
413 redisplay(data); | |
414 }, | |
415 | |
416 // set a mark by clicking (or giving a position) | |
417 setMark : function (data, mpos) { | |
418 if (mpos == null) { | |
419 // interactive | |
420 setMark(data); | |
421 } else { | |
422 // use position | |
423 data.marks.push(pos); | |
663 | 424 redisplay(data); |
604 | 425 } |
668 | 426 }, |
427 | |
428 // remove the last mark | |
429 removeMark : function (data) { | |
430 data.marks.pop(); | |
431 redisplay(data); | |
432 }, | |
433 | |
434 // mirror the image | |
435 mirror : function (data, mode) { | |
436 var flags = data.scalerFlags; | |
437 if (mode === 'h') { | |
438 if (flags.hmir) { | |
439 delete flags.hmir; | |
440 } else { | |
441 flags.hmir = 1; | |
442 } | |
443 } else { | |
444 if (flags.vmir) { | |
445 delete flags.vmir; | |
446 } else { | |
447 flags.vmir = 1; | |
448 } | |
449 } | |
450 redisplay(data); | |
451 }, | |
650 | 452 |
668 | 453 // rotate the image |
454 rotate : function (data, angle) { | |
455 var rot = data.settings.rot; | |
456 if (angle == null) { | |
457 angle = window.prompt("Rotation angle:", rot); | |
458 } | |
459 data.settings.rot = angle; | |
460 redisplay(data); | |
461 }, | |
462 | |
463 // change brightness | |
464 brightness : function (data, factor) { | |
465 var brgt = data.settings.brgt; | |
466 if (factor == null) { | |
467 factor = window.prompt("Brightness (-255..255)", brgt); | |
468 } | |
469 data.settings.brgt = factor; | |
470 redisplay(data); | |
471 }, | |
472 | |
473 // change contrast | |
474 contrast : function (data, factor) { | |
475 var cont = data.settings.cont; | |
476 if (factor == null) { | |
477 factor = window.prompt("Contrast (-8, 8)", cont); | |
478 } | |
479 data.settings.cont = factor; | |
480 redisplay(data); | |
688 | 481 }, |
710 | 482 |
690 | 483 // display more (or less) button sets |
484 morebuttons : function (data, more) { | |
696 | 485 var settings = data.settings; |
699 | 486 if (more == null) { |
703 | 487 // toggle more or less (only works for 2 sets) |
699 | 488 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
489 if (settings.visibleButtonSets >= maxbtns) { | |
490 more = '-1'; | |
491 } else { | |
492 more = '+1'; | |
493 } | |
494 } | |
690 | 495 if (more === '-1') { |
496 // remove set | |
697 | 497 var setIdx = settings.visibleButtonSets - 1; |
498 if (showButtons(data, false, setIdx, true)) { | |
499 settings.visibleButtonSets--; | |
500 } | |
690 | 501 } else { |
502 // add set | |
697 | 503 var setIdx = settings.visibleButtonSets; |
504 if (showButtons(data, true, setIdx, true)) { | |
505 settings.visibleButtonSets++; | |
690 | 506 } |
507 } | |
723 | 508 // persist setting |
509 storeOptions(data); | |
691 | 510 }, |
688 | 511 |
703 | 512 // reset image parameters to defaults |
688 | 513 reset : function (data) { |
514 var settings = data.settings; | |
515 var paramNames = settings.digilibParamNames; | |
516 var params = data.queryParams; | |
517 // delete all digilib parameters | |
518 for (var i = 0; i < paramNames.length; i++) { | |
519 var paramName = paramNames[i]; | |
520 delete settings[paramName]; | |
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521 } |
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522 settings.fn = params.fn || ''; // no default defined |
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523 settings.pn = params.pn || defaults.pn; |
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524 settings.dw = params.dw; |
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525 settings.dh = params.dh; |
709 | 526 settings.isBirdDivVisible = false; |
527 settings.visibleButtonSets = 1; | |
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528 // resets zoomArea, marks, scalerflags |
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529 data.zoomArea = FULL_AREA; |
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530 data.marks = []; |
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531 data.scalerFlags = {}; |
712 | 532 delete data.dlOpts.fitwidth; |
533 delete data.dlOpts.fitheight; | |
688 | 534 redisplay(data); |
689 | 535 }, |
536 | |
703 | 537 // presents a reference url (returns value if noprompt) |
538 reference : function (data, noprompt) { | |
689 | 539 var settings = data.settings; |
540 var url; | |
541 if (settings.interactionMode === 'fullscreen') { | |
542 url = getDigilibUrl(data); | |
543 } else { | |
544 url = getScalerUrl(data); | |
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545 } |
703 | 546 if (noprompt == null) { |
547 window.prompt("URL reference to the current view", url); | |
548 } | |
549 return url; | |
550 }, | |
710 | 551 |
703 | 552 // set image quality |
553 setquality : function (data, qual) { | |
554 var oldq = getQuality(data); | |
555 if (qual == null) { | |
556 qual = window.prompt("Image quality (0..2)", oldq); | |
557 } | |
558 qual = parseInt(qual, 10); | |
559 if (qual >= 0 && qual <= 2) { | |
560 setQuality(data, qual); | |
561 redisplay(data); | |
562 } | |
668 | 563 } |
605 | 564 }; |
604 | 565 |
608 | 566 // returns parameters from page url |
607 | 567 var parseQueryParams = function() { |
636 | 568 return parseQueryString(window.location.search.slice(1)); |
569 }; | |
655 | 570 |
636 | 571 // returns parameters from embedded img-element |
607 | 572 var parseImgParams = function($elem) { |
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573 var src = $elem.find('img').first().attr('src'); |
710 | 574 if (!src) return null; |
607 | 575 var pos = src.indexOf('?'); |
576 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
577 var scalerUrl = src.substring(0, pos); | |
627 | 578 var params = parseQueryString(query); |
579 params.scalerBaseUrl = scalerUrl; | |
580 return params; | |
636 | 581 }; |
607 | 582 |
608 | 583 // parses query parameter string into parameter object |
607 | 584 var parseQueryString = function(query) { |
701 | 585 var params = {}; |
586 if (query == null) return params; | |
607 | 587 var pairs = query.split("&"); |
636 | 588 //var keys = []; |
607 | 589 for (var i = 0; i < pairs.length; i++) { |
590 var pair = pairs[i].split("="); | |
591 if (pair.length === 2) { | |
627 | 592 params[pair[0]] = pair[1]; |
636 | 593 //keys.push(pair[0]); |
634 | 594 } |
636 | 595 } |
627 | 596 return params; |
636 | 597 }; |
668 | 598 |
643 | 599 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
600 var getParamString = function (settings, keys, defaults) { | |
615 | 601 var paramString = ''; |
650 | 602 var nx = false; |
615 | 603 for (i = 0; i < keys.length; ++i) { |
604 var key = keys[i]; | |
663 | 605 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 606 // first param gets no '&' |
650 | 607 if (nx) { |
608 paramString += '&'; | |
609 } else { | |
610 nx = true; | |
611 } | |
615 | 612 // add parm=val |
613 paramString += key + '=' + settings[key]; | |
643 | 614 } |
615 | 615 } |
616 return paramString; | |
631 | 617 }; |
618 | |
636 | 619 // returns URL and query string for Scaler |
620 var getScalerUrl = function (data) { | |
653 | 621 var settings = data.settings; |
652 | 622 if (settings.scalerBaseUrl == null) { |
623 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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624 } |
665 | 625 packParams(data); |
636 | 626 var keys = settings.scalerParamNames; |
643 | 627 var queryString = getParamString(settings, keys, defaults); |
636 | 628 var url = settings.scalerBaseUrl + '?' + queryString; |
629 return url; | |
630 }; | |
631 | |
632 // returns URL and query string for current digilib | |
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633 var getDigilibUrl = function (data) { |
643 | 634 packParams(data); |
636 | 635 var settings = data.settings; |
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636 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
636 | 637 var url = window.location.toString(); |
638 var pos = url.indexOf('?'); | |
639 var baseUrl = url.substring(0, pos); | |
640 var newurl = baseUrl + '?' + queryString; | |
641 return newurl; | |
642 }; | |
643 | |
655 | 644 // processes some parameters into objects and stuff |
631 | 645 var unpackParams = function (data) { |
646 var settings = data.settings; | |
636 | 647 // zoom area |
631 | 648 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 649 data.zoomArea = zoomArea; |
636 | 650 // marks |
631 | 651 var marks = []; |
650 | 652 if (settings.mk) { |
653 var mk = settings.mk; | |
654 if (mk.indexOf(";") >= 0) { | |
655 var pa = mk.split(";"); // old format with ";" | |
656 } else { | |
657 var pa = mk.split(","); // new format | |
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658 } |
650 | 659 for (var i = 0; i < pa.length ; i++) { |
660 var pos = pa[i].split("/"); | |
661 if (pos.length > 1) { | |
662 marks.push(geom.position(pos[0], pos[1])); | |
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663 } |
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664 } |
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665 } |
643 | 666 data.marks = marks; |
650 | 667 // mo (Scaler flags) |
668 var flags = {}; | |
669 if (settings.mo) { | |
670 var pa = settings.mo.split(","); | |
671 for (var i = 0; i < pa.length ; i++) { | |
672 flags[pa[i]] = pa[i]; | |
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673 } |
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674 } |
650 | 675 data.scalerFlags = flags; |
723 | 676 retrieveOptions(data); |
655 | 677 }; |
678 | |
631 | 679 // put objects back into parameters |
680 var packParams = function (data) { | |
681 var settings = data.settings; | |
636 | 682 // zoom area |
643 | 683 if (data.zoomArea) { |
647 | 684 settings.wx = cropFloat(data.zoomArea.x); |
685 settings.wy = cropFloat(data.zoomArea.y); | |
686 settings.ww = cropFloat(data.zoomArea.width); | |
687 settings.wh = cropFloat(data.zoomArea.height); | |
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688 } |
636 | 689 // marks |
643 | 690 if (data.marks) { |
650 | 691 settings.mk = ''; |
643 | 692 for (var i = 0; i < data.marks.length; i++) { |
650 | 693 if (i) { |
694 settings.mk += ','; | |
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695 } |
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696 settings.mk += cropFloat(data.marks[i].x).toString() + |
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697 '/' + cropFloat(data.marks[i].y).toString(); |
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698 } |
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699 } |
650 | 700 // Scaler flags |
701 if (data.scalerFlags) { | |
702 var mo = ''; | |
703 for (var f in data.scalerFlags) { | |
704 if (mo) { | |
705 mo += ','; | |
706 } | |
707 mo += f; | |
708 } | |
709 settings.mo = mo; | |
710 } | |
710 | 711 // user interface options |
723 | 712 storeOptions(data); |
709 | 713 }; |
688 | 714 |
723 | 715 var storeOptions = function (data) { |
701 | 716 // save digilib options in cookie |
709 | 717 // TODO: in embedded mode this is not called |
701 | 718 /* store in parameter clop |
719 * if (data.dlOpts) { | |
720 var clop = ''; | |
721 for (var o in data.dlOpts) { | |
722 if (clop) { | |
650 | 723 clop += ','; |
724 } | |
725 clop += o; | |
726 } | |
727 settings.clop = clop; | |
701 | 728 } */ |
709 | 729 var settings = data.settings; |
730 if (data.dlOpts) { | |
731 // save digilib settings in options | |
732 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
733 data.dlOpts.buttons = settings.visibleButtonSets; | |
734 var clop = ''; | |
735 for (var o in data.dlOpts) { | |
736 if (clop) { | |
737 clop += '&'; | |
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738 } |
709 | 739 clop += o + '=' + data.dlOpts[o]; |
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740 } |
709 | 741 if (jQuery.cookie) { |
742 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
743 console.debug("set cookie=", ck, " value=", clop); | |
744 jQuery.cookie(ck, clop); | |
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745 } |
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746 } |
727 | 747 if (settings.interactionMode !== 'fullscreen' && jQuery.cookie) { |
748 // store normal parameters in cookie for embedded mode | |
749 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
750 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
751 console.debug("set cookie=", ck, " value=", qs); | |
752 jQuery.cookie(ck, qs); | |
753 } | |
631 | 754 }; |
655 | 755 |
723 | 756 var retrieveOptions = function (data) { |
709 | 757 // clop (digilib options) |
758 var opts = {}; | |
759 var settings = data.settings; | |
760 if (jQuery.cookie) { | |
761 /* read from parameter clop | |
762 * if (settings.clop) { | |
763 var pa = settings.clop.split(","); | |
764 for (var i = 0; i < pa.length ; i++) { | |
765 opts[pa[i]] = pa[i]; | |
766 } | |
767 } */ | |
768 // read from cookie | |
769 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
770 var cp = jQuery.cookie(ck); | |
771 console.debug("get cookie=", ck, " value=", cp); | |
772 // in query string format | |
773 opts = parseQueryString(cp); | |
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774 } |
709 | 775 data.dlOpts = opts; |
776 // birdview option | |
777 if (opts.birdview != null) { | |
778 settings.isBirdDivVisible = opts.birdview === '1'; | |
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779 } |
709 | 780 // visible button sets |
781 if (opts.buttons != null) { | |
782 settings.visibleButtonSets = opts.buttons; | |
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783 } |
711 | 784 }; |
709 | 785 |
622 | 786 // (re)load the img from a new scaler URL |
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787 var redisplay = function (data) { |
636 | 788 var settings = data.settings; |
789 if (settings.interactionMode === 'fullscreen') { | |
790 // update location.href (browser URL) in fullscreen mode | |
644
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791 var url = getDigilibUrl(data); |
636 | 792 var history = window.history; |
793 if (typeof(history.pushState) === 'function') { | |
794 console.debug("we could modify history, but we don't..."); | |
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795 } |
636 | 796 window.location = url; |
797 } else { | |
798 // embedded mode -- just change img src | |
799 var url = getScalerUrl(data); | |
800 data.$img.attr('src', url); | |
726 | 801 // redisplay bird img |
802 updateBirdDiv(data); | |
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803 } |
622 | 804 }; |
805 | |
662 | 806 // returns maximum size for scaler img in fullscreen mode |
807 var getFullscreenImgSize = function($elem) { | |
808 var $win = $(window); | |
809 var winH = $win.height(); | |
810 var winW = $win.width(); | |
811 // TODO: account for borders? | |
812 return geom.size(winW, winH); | |
813 }; | |
814 | |
608 | 815 // creates HTML structure for digilib in elem |
627 | 816 var setupScalerDiv = function (data) { |
817 var settings = data.settings; | |
647 | 818 var $elem = data.$elem; |
725 | 819 $elem.addClass('digilib'); |
728 | 820 var $img; |
821 var scalerUrl; | |
608 | 822 if (settings.interactionMode === 'fullscreen') { |
728 | 823 // fullscreen |
725 | 824 $elem.addClass('dl_fullscreen'); |
609 | 825 var imgSize = getFullscreenImgSize($elem); |
650 | 826 // fitwidth/height omits destination height/width |
728 | 827 if (data.dlOpts.fitheight == null) { |
650 | 828 settings.dw = imgSize.width; |
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829 } |
728 | 830 if (data.dlOpts.fitwidth == null) { |
650 | 831 settings.dh = imgSize.height; |
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832 } |
686 | 833 scalerUrl = getScalerUrl(data); |
728 | 834 $img = $('<img/>'); |
609 | 835 } else { |
728 | 836 // embedded mode -- try to keep img tag |
725 | 837 $elem.addClass('dl_embedded'); |
728 | 838 scalerUrl = getScalerUrl(data); |
623 | 839 $img = $elem.find('img'); |
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840 if ($img.length > 0) { |
728 | 841 oldUrl = $img.attr('src'); |
842 if (oldUrl === scalerUrl) { | |
843 console.debug("img detach:", $img); | |
844 $img.detach(); | |
845 } else { | |
846 $img = $('<img/>'); | |
847 } | |
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848 } else { |
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849 $img = $('<img/>'); |
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850 } |
608 | 851 } |
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852 // create new html |
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853 $elem.empty(); // TODO: should we keep stuff for customization? |
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854 var $scaler = $('<div class="scaler"/>'); |
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855 $elem.append($scaler); |
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856 $scaler.append($img); |
622 | 857 $img.addClass('pic'); |
649 | 858 data.$scaler = $scaler; |
636 | 859 data.$img = $img; |
687 | 860 // setup image load handler before setting the src attribute (IE bug) |
861 $img.load(scalerImgLoadedHandler(data)); | |
738 | 862 $scaler.css('cursor', 'wait'); |
687 | 863 $img.attr('src', scalerUrl); |
608 | 864 }; |
615 | 865 |
610 | 866 // creates HTML structure for buttons in elem |
697 | 867 var createButtons = function (data, buttonSetIdx) { |
647 | 868 var $elem = data.$elem; |
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869 var settings = data.settings; |
665 | 870 var mode = settings.interactionMode; |
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871 var buttonSettings = settings.buttonSettings[mode]; |
682 | 872 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
690 | 873 if (buttonGroup == null) { |
874 // no buttons here | |
875 return; | |
876 } | |
877 var $buttonsDiv = $('<div class="buttons"/>'); | |
682 | 878 var buttonNames = buttonSettings[buttonGroup]; |
879 for (var i = 0; i < buttonNames.length; i++) { | |
880 var buttonName = buttonNames[i]; | |
881 var buttonConfig = settings.buttons[buttonName]; | |
665 | 882 // construct the button html |
883 var $button = $('<div class="button"></div>'); | |
884 var $a = $('<a/>'); | |
885 var $img = $('<img class="button"/>'); | |
886 $buttonsDiv.append($button); | |
887 $button.append($a); | |
888 $a.append($img); | |
889 // add attributes and bindings | |
890 $button.attr('title', buttonConfig.tooltip); | |
682 | 891 $button.addClass('button-' + buttonName); |
665 | 892 // create handler for the buttons |
893 $a.bind('click.digilib', (function () { | |
894 // we create a new closure to capture the value of action | |
895 var action = buttonConfig.onclick; | |
896 if ($.isArray(action)) { | |
897 // the handler function calls digilib with action and parameters | |
898 return function (evt) { | |
899 console.debug('click action=', action, ' evt=', evt); | |
900 $elem.digilib.apply($elem, action); | |
901 return false; | |
902 }; | |
903 } else { | |
904 // the handler function calls digilib with action | |
905 return function (evt) { | |
906 console.debug('click action=', action, ' evt=', evt); | |
907 $elem.digilib(action); | |
908 return false; | |
909 }; | |
910 } | |
911 })()); | |
912 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
690 | 913 } |
662 | 914 // make buttons div scroll if too large for window |
915 if ($buttonsDiv.height() > $(window).height() - 10) { | |
916 $buttonsDiv.css('position', 'absolute'); | |
917 } | |
697 | 918 // buttons hidden at first |
919 $buttonsDiv.hide(); | |
920 $elem.append($buttonsDiv); | |
682 | 921 if (data.$buttonSets == null) { |
697 | 922 // first button set |
682 | 923 data.$buttonSets = [$buttonsDiv]; |
924 } else { | |
690 | 925 $elem.append($buttonsDiv); |
682 | 926 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
927 } | |
612 | 928 return $buttonsDiv; |
610 | 929 }; |
615 | 930 |
723 | 931 // returns URL for bird's eye view image |
932 var getBirdImgUrl = function (data) { | |
933 var settings = data.settings; | |
934 var birdDivOptions = { | |
935 dw : settings.birdDivWidth, | |
936 dh : settings.birdDivHeight | |
937 }; | |
938 var birdSettings = $.extend({}, settings, birdDivOptions); | |
939 // use only the relevant parameters | |
940 var birdUrl = settings.scalerBaseUrl + '?' + | |
941 getParamString(birdSettings, settings.birdDivParams); | |
942 return birdUrl; | |
943 }; | |
944 | |
615 | 945 // creates HTML structure for the bird's eye view in elem |
638 | 946 var setupBirdDiv = function (data) { |
647 | 947 var $elem = data.$elem; |
615 | 948 // the bird's eye div |
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949 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
615 | 950 // the detail indicator frame |
726 | 951 var $birdZoom = $('<div class="birdzoom" style="display:none; background-color:transparent;"/>'); |
615 | 952 // the small image |
953 var $birdImg = $('<img class="birdimg"/>'); | |
723 | 954 data.$birdDiv = $birdDiv; |
955 data.$birdZoom = $birdZoom; | |
956 data.$birdImg = $birdImg; | |
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957 $elem.append($birdDiv); |
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958 $birdDiv.append($birdZoom); |
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959 $birdDiv.append($birdImg); |
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960 $birdZoom.css(data.settings.birdIndicatorStyle); |
723 | 961 var birdUrl = getBirdImgUrl(data); |
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962 $birdImg.load(birdImgLoadedHandler(data)); |
723 | 963 $birdImg.attr('src', birdUrl); |
964 }; | |
965 | |
966 // update bird's eye view | |
967 var updateBirdDiv = function (data) { | |
968 if (!data.settings.isBirdDivVisible) return; | |
969 var $birdImg = data.$birdImg; | |
970 var oldsrc = $birdImg.attr('src'); | |
971 var newsrc = getBirdImgUrl(data); | |
972 if (oldsrc !== newsrc) { | |
973 $birdImg.attr('src', newsrc); | |
974 // onload handler re-renders | |
975 } else { | |
976 // re-render | |
977 renderBirdArea(data); | |
730 | 978 // enable click and drag |
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979 setupBirdDrag(data); |
723 | 980 } |
719
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981 }; |
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982 |
625 | 983 // creates HTML structure for the about view in elem |
628
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984 var setupAboutDiv = function (data) { |
647 | 985 var $elem = data.$elem; |
628
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986 var settings = data.settings; |
625 | 987 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
616 | 988 var $header = $('<p>Digilib Graphic Viewer</p>'); |
989 var $link = $('<a/>'); | |
990 var $logo = $('<img class="logo" title="digilib"/>'); | |
991 var $content = $('<p/>'); | |
992 $elem.append($aboutDiv); | |
993 $aboutDiv.append($header); | |
994 $aboutDiv.append($link); | |
995 $aboutDiv.append($content); | |
996 $link.append($logo); | |
997 $logo.attr('src', settings.logoUrl); | |
635 | 998 $link.attr('href', settings.homeUrl); |
616 | 999 $content.text('Version: ' + settings.version); |
635 | 1000 // click hides |
649 | 1001 $aboutDiv.bind('click.digilib', function () { |
646 | 1002 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
649 | 1003 return false; |
710 | 1004 }); |
635 | 1005 data.$aboutDiv = $aboutDiv; |
634 | 1006 }; |
1007 | |
635 | 1008 // shows some window e.g. 'about' (toggle visibility if show is null) |
1009 var showDiv = function (isVisible, $div, show) { | |
645 | 1010 if (show == null) { |
635 | 1011 // toggle visibility |
1012 isVisible = !isVisible; | |
1013 } else { | |
1014 // set visibility | |
1015 isVisible = show; | |
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1016 } |
635 | 1017 if (isVisible) { |
1018 $div.fadeIn(); | |
1019 } else { | |
1020 $div.fadeOut(); | |
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1021 } |
635 | 1022 return isVisible; |
634 | 1023 }; |
616 | 1024 |
697 | 1025 // display more (or less) button sets |
1026 var showButtons = function (data, more, setIdx, animated) { | |
711 | 1027 var atime = animated ? 'fast': 0; |
697 | 1028 if (more) { |
1029 // add set | |
1030 var $otherSets = data.$elem.find('div.buttons:visible'); | |
1031 var $set; | |
1032 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
1033 // set exists | |
1034 $set = data.$buttonSets[setIdx]; | |
1035 } else { | |
1036 $set = createButtons(data, setIdx); | |
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1037 } |
697 | 1038 if ($set == null) return false; |
1039 var btnWidth = $set.width(); | |
1040 // move remaining sets left and show new set | |
711 | 1041 if ($otherSets.length > 0) { |
1042 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
1043 function () {$set.show();}); | |
697 | 1044 } else { |
1045 $set.show(); | |
711 | 1046 } |
697 | 1047 } else { |
1048 // remove set | |
1049 var $set = data.$buttonSets[setIdx]; | |
1050 if ($set == null) return false; | |
1051 var btnWidth = $set.width(); | |
1052 // hide last set | |
1053 $set.hide(); | |
1054 // take remaining sets and move right | |
1055 var $otherSets = data.$elem.find('div.buttons:visible'); | |
711 | 1056 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
1057 } | |
697 | 1058 return true; |
1059 }; | |
1060 | |
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1061 // create Transform from area and $img |
675 | 1062 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
658
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1063 var picrect = geom.rectangle($img); |
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1064 var trafo = geom.transform(); |
675 | 1065 // move zoom area offset to center |
658
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1066 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
675 | 1067 // scale zoom area size to [1,1] |
658
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1068 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
675 | 1069 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
1070 if (rot || hmir || vmir) { | |
1071 // move [0.5,0.5] to center | |
1072 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
1073 if (hmir) { | |
1074 // mirror about center | |
1075 trafo.concat(trafo.getMirror('y')); | |
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1076 } |
675 | 1077 if (vmir) { |
1078 // mirror about center | |
1079 trafo.concat(trafo.getMirror('x')); | |
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1080 } |
675 | 1081 if (rot) { |
1082 // rotate around center | |
1083 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
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1084 } |
675 | 1085 // move back |
1086 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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1087 } |
664
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1088 // scale to screen position and size |
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1089 trafo.concat(trafo.getScale(picrect)); |
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1090 trafo.concat(trafo.getTranslation(picrect)); |
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1091 return trafo; |
655 | 1092 }; |
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1093 |
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1094 // returns function for load event of scaler img |
636 | 1095 var scalerImgLoadedHandler = function (data) { |
633 | 1096 return function () { |
723 | 1097 var $img = $(this); |
738 | 1098 var $scaler = data.$scaler; |
627 | 1099 console.debug("img loaded! this=", this, " data=", data); |
1100 // create Transform from current area and picsize | |
675 | 1101 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
1102 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
686 | 1103 console.debug("imgTrafo=", data.imgTrafo); |
733 | 1104 // adjust scaler div size |
738 | 1105 var imgRect = geom.rectangle($img); |
733 | 1106 console.debug("imgrect=", imgRect); |
738 | 1107 imgRect.adjustDiv($scaler); |
715 | 1108 // show image in case it was hidden (for example in zoomDrag) |
733 | 1109 $img.css('visibility', 'visible'); |
738 | 1110 $scaler.css('cursor', 'auto'); |
627 | 1111 // display marks |
633 | 1112 renderMarks(data); |
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1113 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation |
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1114 }; |
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1115 }; |
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1116 |
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1117 // returns function for load event of bird's eye view img |
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1118 var birdImgLoadedHandler = function (data) { |
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1119 return function () { |
723 | 1120 var $img = $(this); |
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1121 console.debug("birdimg loaded! this=", this, " data=", data); |
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1122 // create Transform from current area and picsize |
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1123 data.birdTrafo = getImgTrafo($img, FULL_AREA); |
668 | 1124 // display red indicator around zoomarea |
723 | 1125 renderBirdArea(data); |
1126 // enable click and drag | |
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1127 setupBirdDrag(data); |
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1128 }; |
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1129 }; |
633 | 1130 |
1131 // place marks on the image | |
1132 var renderMarks = function (data) { | |
647 | 1133 var $elem = data.$elem; |
643 | 1134 var marks = data.marks; |
649 | 1135 // TODO: clear marks first(?) |
633 | 1136 for (var i = 0; i < marks.length; i++) { |
1137 var mark = marks[i]; | |
643 | 1138 if (data.zoomArea.containsPosition(mark)) { |
633 | 1139 var mpos = data.imgTrafo.transform(mark); |
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1140 console.debug("renderMarks: mpos=",mpos); |
633 | 1141 // create mark |
1142 var html = '<div class="mark">'+(i+1)+'</div>'; | |
1143 var $mark = $(html); | |
1144 $elem.append($mark); | |
654 | 1145 $mark.offset({left : mpos.x, top : mpos.y}); |
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1146 } |
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1147 } |
633 | 1148 }; |
655 | 1149 |
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1150 // show zoom area indicator on bird's eye view |
723 | 1151 var renderBirdArea = function (data) { |
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1152 var $birdZoom = data.$birdZoom; |
659 | 1153 var zoomArea = data.zoomArea; |
723 | 1154 var normalSize = isFullArea(zoomArea); |
1155 if (normalSize) { | |
1156 $birdZoom.hide(); | |
1157 return; | |
1158 } else { | |
1159 $birdZoom.show(); | |
1160 } | |
730 | 1161 // position may have changed |
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1162 data.birdTrafo = getImgTrafo(data.$birdImg, FULL_AREA); |
738 | 1163 var zoomRect = data.birdTrafo.transform(zoomArea); |
1164 // TODO: acount for frame width | |
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1165 if (data.settings.interactionMode === 'fullscreen') { |
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1166 // no animation for fullscreen |
738 | 1167 zoomRect.adjustDiv($birdZoom); |
723 | 1168 } else { |
1169 // nice animation for embedded mode :-) | |
738 | 1170 // correct offsetParent because animate is relative |
726 | 1171 var ppos = $birdZoom.offsetParent().offset(); |
738 | 1172 var dest = { |
1173 left : (zoomRect.x - ppos.left) + 'px', | |
1174 top : (zoomRect.y - ppos.top) + 'px', | |
1175 width : zoomRect.width, | |
1176 height : zoomRect.height}; | |
1177 $birdZoom.animate(dest); | |
723 | 1178 } |
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1179 }; |
659 | 1180 |
647 | 1181 // zooms by the given factor |
643 | 1182 var zoomBy = function(data, factor) { |
1183 var area = data.zoomArea; | |
1184 var newarea = area.copy(); | |
1185 // scale | |
1186 newarea.width /= factor; | |
1187 newarea.height /= factor; | |
1188 // and recenter | |
1189 newarea.x -= 0.5 * (newarea.width - area.width); | |
1190 newarea.y -= 0.5 * (newarea.height - area.height); | |
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1191 newarea = FULL_AREA.fit(newarea); |
643 | 1192 data.zoomArea = newarea; |
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1193 redisplay(data); |
643 | 1194 }; |
1195 | |
647 | 1196 // add a mark where clicked |
1197 var setMark = function (data) { | |
649 | 1198 var $scaler = data.$scaler; |
647 | 1199 // start event capturing |
649 | 1200 $scaler.one('click.digilib', function (evt) { |
647 | 1201 // event handler adding a new mark |
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1202 var mpos = geom.position(evt); |
647 | 1203 var pos = data.imgTrafo.invtransform(mpos); |
1204 data.marks.push(pos); | |
1205 redisplay(data); | |
649 | 1206 return false; // do we even get here? |
647 | 1207 }); |
1208 }; | |
668 | 1209 |
738 | 1210 // zoom to area around two clicked points |
654 | 1211 var zoomArea = function(data) { |
1212 $elem = data.$elem; | |
1213 $scaler = data.$scaler; | |
1214 var pt1, pt2; | |
1215 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
1216 $elem.append($zoomDiv); | |
668 | 1217 $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 1218 var picRect = geom.rectangle($scaler); |
1219 // FIX ME: is there a way to query the border width from CSS info? | |
1220 // rect.x -= 2; // account for overlay borders | |
1221 // rect.y -= 2; | |
1222 | |
1223 var zoomStart = function (evt) { | |
1224 pt1 = geom.position(evt); | |
1225 // setup and show zoom div | |
738 | 1226 pt1.adjustDiv($zoomDiv); |
668 | 1227 $zoomDiv.width(0).height(0); |
654 | 1228 $zoomDiv.show(); |
1229 // register events | |
738 | 1230 $elem.bind("mousemove.dlZoomArea", zoomMove); |
1231 $elem.bind("mouseup.dlZoomArea", zoomEnd); | |
654 | 1232 return false; |
1233 }; | |
668 | 1234 |
654 | 1235 // mouseup handler: end moving |
1236 var zoomEnd = function (evt) { | |
1237 pt2 = geom.position(evt); | |
1238 // assume a click and continue if the area is too small | |
1239 var clickRect = geom.rectangle(pt1, pt2); | |
710 | 1240 if (clickRect.getArea() <= 5) return false; |
654 | 1241 // hide zoom div |
1242 $zoomDiv.remove(); | |
1243 // unregister events | |
738 | 1244 $elem.unbind("mousemove.dlZoomArea", zoomMove); |
1245 $elem.unbind("mouseup.dlZoomArea", zoomEnd); | |
654 | 1246 // clip and transform |
1247 clickRect.clipTo(picRect); | |
1248 var area = data.imgTrafo.invtransform(clickRect); | |
1249 data.zoomArea = area; | |
1250 // zoomed is always fit | |
1251 data.settings.ws = 1; | |
738 | 1252 delete data.dlOpts.fitwidth; |
1253 delete data.dlOpts.fitheight; | |
654 | 1254 redisplay(data); |
1255 return false; | |
1256 }; | |
668 | 1257 |
654 | 1258 // mouse move handler |
1259 var zoomMove = function (evt) { | |
1260 pt2 = geom.position(evt); | |
1261 var rect = geom.rectangle(pt1, pt2); | |
1262 rect.clipTo(picRect); | |
1263 // update zoom div | |
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1264 rect.adjustDiv($zoomDiv); |
654 | 1265 return false; |
1266 }; | |
738 | 1267 |
1268 // clear old handler | |
1269 $scaler.unbind('.dlZoomArea'); | |
1270 $elem.unbind('.dlZoomArea'); | |
654 | 1271 // bind start zoom handler |
738 | 1272 $scaler.one('mousedown.dlZoomArea', zoomStart); |
654 | 1273 }; |
647 | 1274 |
723 | 1275 // bird's eye view zoom area click and drag handler |
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1276 var setupBirdDrag = function(data) { |
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1277 var $birdImg = data.$birdImg; |
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1278 var $birdZoom = data.$birdZoom; |
730 | 1279 var $document = $(document); |
678
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1280 var startPos, newRect, birdImgRect, birdZoomRect; |
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1281 |
733 | 1282 // mousemove handler: drag |
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1283 var birdZoomMove = function(evt) { |
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1284 var pos = geom.position(evt); |
730 | 1285 var delta = startPos.delta(pos); |
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1286 // move birdZoom div, keeping size |
730 | 1287 newRect = birdZoomRect.copy(); |
733 | 1288 newRect.addPosition(delta); |
678
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1289 // stay within birdimage |
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1290 newRect.stayInside(birdImgRect); |
730 | 1291 newRect.adjustDiv($birdZoom); |
678
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1292 return false; |
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1293 }; |
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1294 |
733 | 1295 // mouseup handler: reload page |
678
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1296 var birdZoomEndDrag = function(evt) { |
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1297 var settings = data.settings; |
730 | 1298 $document.unbind("mousemove.dlBirdMove", birdZoomMove); |
1299 $document.unbind("mouseup.dlBirdMove", birdZoomEndDrag); | |
1300 $birdZoom.unbind("mousemove.dlBirdMove", birdZoomMove); | |
1301 $birdZoom.unbind("mouseup.dlBirdMove", birdZoomEndDrag); | |
1302 if (newRect == null) { | |
1303 // no movement happened - set center to click position | |
678
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1304 startPos = birdZoomRect.getCenter(); |
730 | 1305 birdZoomMove(evt); |
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1306 } |
730 | 1307 var newArea = data.birdTrafo.invtransform(newRect); |
1308 data.zoomArea = newArea; | |
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1309 redisplay(data); |
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1310 return false; |
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1311 }; |
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1312 |
733 | 1313 // mousedown handler: start dragging bird zoom to a new position |
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1314 var birdZoomStartDrag = function(evt) { |
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1315 startPos = geom.position(evt); |
730 | 1316 // position may have changed |
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1317 data.birdTrafo = getImgTrafo($birdImg, FULL_AREA); |
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1318 birdImgRect = geom.rectangle($birdImg); |
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1319 birdZoomRect = geom.rectangle($birdZoom); |
730 | 1320 $document.bind("mousemove.dlBirdMove", birdZoomMove); |
1321 $document.bind("mouseup.dlBirdMove", birdZoomEndDrag); | |
1322 $birdZoom.bind("mousemove.dlBirdMove", birdZoomMove); | |
1323 $birdZoom.bind("mouseup.dlBirdMove", birdZoomEndDrag); | |
678
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1324 return false; |
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1325 }; |
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1326 |
730 | 1327 // clear old handler |
1328 $document.unbind(".dlBirdMove"); | |
1329 $birdImg.unbind(".dlBirdMove"); | |
1330 $birdZoom.unbind(".dlBirdMove"); | |
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1331 if (! isFullArea(data.zoomArea)) { |
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1332 // set new handler |
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1333 $birdImg.bind("mousedown.dlBirdMove", birdZoomStartDrag); |
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1334 $birdZoom.bind("mousedown.dlBirdMove", birdZoomStartDrag); |
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1335 } |
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1336 }; |
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1337 |
738 | 1338 // setup handlers for dragging the zoomed image |
705 | 1339 var setupZoomDrag = function(data) { |
733 | 1340 var startPos, delta; |
1341 var $document = $(document); | |
705 | 1342 var $elem = data.$elem; |
1343 var $scaler = data.$scaler; | |
1344 var $img = data.$img; | |
710 | 1345 |
733 | 1346 // drag the image and load a new detail on mouse up |
705 | 1347 var dragStart = function (evt) { |
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1348 // don't start dragging if not zoomed |
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1349 if (isFullArea(data.zoomArea)) return false; |
733 | 1350 startPos = geom.position(evt); |
705 | 1351 $imgRect = geom.rectangle($img); |
1352 // hide the scaler image, show it as background of div instead | |
715 | 1353 $scaler.css({ |
705 | 1354 'background-image' : 'url(' + $img.attr('src') + ')', |
1355 'background-repeat' : 'no-repeat', | |
706 | 1356 'background-position' : 'top left', |
705 | 1357 'cursor' : 'move' |
1358 }); | |
730 | 1359 $img.css('visibility', 'hidden'); |
733 | 1360 $document.bind("mousemove.dlZoomDrag", dragMove); |
1361 $document.bind("mouseup.dlZoomDrag", dragEnd); | |
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1362 return false; |
705 | 1363 }; |
710 | 1364 |
733 | 1365 // mousemove handler: drag zoomed image |
705 | 1366 var dragMove = function (evt) { |
1367 var pos = geom.position(evt); | |
733 | 1368 delta = pos.delta(startPos); |
705 | 1369 // move the background image to the new position |
715 | 1370 $scaler.css({ |
733 | 1371 'background-position' : (-delta.x) + "px " + (-delta.y) + "px" |
705 | 1372 }); |
1373 return false; | |
1374 }; | |
710 | 1375 |
733 | 1376 // mouseup handler: reload zoomed image in new position |
705 | 1377 var dragEnd = function (evt) { |
715 | 1378 $scaler.css({ |
738 | 1379 'cursor' : 'auto' |
705 | 1380 }); |
733 | 1381 $document.unbind("mousemove.dlZoomDrag", dragMove); |
1382 $document.unbind("mouseup.dlZoomDrag", dragEnd); | |
1383 if (delta == null || delta.distance() < 2) { | |
1384 // no movement | |
1385 $img.css('visibility', 'visible'); | |
1386 return false; | |
1387 } | |
1388 // get old zoom area (screen coordinates) | |
1389 var za = data.imgTrafo.transform(data.zoomArea); | |
1390 // move | |
1391 za.addPosition(delta); | |
1392 // transform back | |
1393 var newArea = data.imgTrafo.invtransform(za); | |
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1394 data.zoomArea = FULL_AREA.fit(newArea); |
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1395 redisplay(data); |
705 | 1396 return false; |
1397 }; | |
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1398 |
733 | 1399 // clear old handler |
1400 $document.unbind(".dlZoomDrag"); | |
1401 $scaler.unbind(".dlBirdMove"); | |
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1402 $scaler.bind("mousedown.dlZoomDrag", dragStart); |
705 | 1403 }; |
1404 | |
703 | 1405 // get image quality as a number (0..2) |
1406 var getQuality = function (data) { | |
1407 var flags = data.scalerFlags; | |
1408 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
1409 return parseInt(q[1], 10); | |
706 | 1410 }; |
703 | 1411 |
1412 // set image quality as a number (0..2) | |
1413 var setQuality = function (data, qual) { | |
1414 var flags = data.scalerFlags; | |
1415 // clear flags | |
1416 for (var i = 0; i < 3; ++i) { | |
1417 delete flags['q'+i]; | |
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1418 } |
703 | 1419 flags['q'+qual] = 'q'+qual; |
706 | 1420 }; |
710 | 1421 |
650 | 1422 // sets a key to a value (relative values with +/- if relative=true) |
1423 var setNumValue = function(settings, key, value) { | |
716 | 1424 if (value == null) return null; |
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1425 if (isNumber(value)) { |
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1426 settings[key] = value; |
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1427 return value; |
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1428 } |
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1429 var sign = value[0]; |
650 | 1430 if (sign === '+' || sign === '-') { |
1431 if (settings[key] == null) { | |
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1432 // this isn't perfect but still... |
650 | 1433 settings[key] = 0; |
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1434 } |
650 | 1435 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
1436 } else { | |
1437 settings[key] = value; | |
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1438 } |
650 | 1439 return settings[key]; |
1440 }; | |
655 | 1441 |
1442 // auxiliary function (from old dllib.js) | |
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1443 var isFullArea = function(area) { |
659 | 1444 return (area.width === 1.0) && (area.height === 1.0); |
655 | 1445 }; |
1446 | |
641 | 1447 // auxiliary function (from Douglas Crockford, A.10) |
1448 var isNumber = function isNumber(value) { | |
710 | 1449 return typeof value === 'number' && isFinite(value); |
641 | 1450 }; |
655 | 1451 |
631 | 1452 // auxiliary function to crop senseless precision |
1453 var cropFloat = function (x) { | |
637 | 1454 return parseInt(10000 * x, 10) / 10000; |
631 | 1455 }; |
655 | 1456 |
692 | 1457 // fallback for console.log calls |
1458 if (customConsole) { | |
1459 var logFunction = function(type) { | |
1460 return function(){ | |
1461 var $debug = $('#debug'); // debug div | |
1462 if (!$debug) return; | |
1463 var args = Array.prototype.slice.call(arguments); | |
1464 var argtext = args.join(' '); | |
1465 var $logDiv = $('<div/>'); | |
1466 $logDiv.addClass(type); | |
1467 $logDiv.text(argtext); | |
1468 $debug.append($logDiv); | |
1469 }; | |
1470 }; | |
1471 console.log = logFunction('_log'); | |
1472 console.debug = logFunction('_debug'); | |
1473 console.error = logFunction('_error'); | |
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1474 } |
692 | 1475 |
605 | 1476 // hook plugin into jquery |
651
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1477 $.fn.digilib = function(action) { |
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1478 if (actions[action]) { |
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1479 // call action on this with the remaining arguments (inserting data as first argument) |
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1480 var $elem = $(this); |
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1481 var data = $elem.data('digilib'); |
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1482 var args = Array.prototype.slice.call(arguments, 1); |
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1483 args.unshift(data); |
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1484 return actions[action].apply(this, args); |
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1485 } else if (typeof(action) === 'object' || !action) { |
634 | 1486 // call init on this |
651
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1487 return actions.init.apply(this, arguments); |
605 | 1488 } else { |
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1489 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
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1490 } |
605 | 1491 }; |
692 | 1492 |
604 | 1493 })(jQuery); |