Mercurial > hg > digilib-old
annotate client/digitallibrary/jquery/jquery.digilib.js @ 742:2b6d3ef57d68 jquery
fixed problem with setmark, zoomarea and zoomDrag handlers.
added mark buttons and removed fwd and back from embedded set.
author | robcast |
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date | Wed, 02 Feb 2011 21:11:50 +0100 |
parents | ee620bcf4ab0 |
children | 05665cc70a5f |
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 }; | |
617
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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'], |
644
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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', |
651
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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/', | |
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229 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","bird","help","reset","toggleoptions"], |
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230 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","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? |
741 | 248 'isAboutDivVisible' : false, |
249 // maximum width of background image for drag-scroll | |
250 'maxBgSize' : 10000 | |
616 | 251 |
610 | 252 }; |
655 | 253 |
608 | 254 // affine geometry classes |
255 var geom = dlGeometry(); | |
655 | 256 |
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257 var FULL_AREA = geom.rectangle(0, 0, 1, 1); |
655 | 258 |
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259 var actions = { |
668 | 260 // init: digilib initialization |
261 init : function(options) { | |
262 // settings for this digilib instance are merged from defaults and options | |
263 var settings = $.extend({}, defaults, options); | |
264 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
265 var queryParams = {}; | |
266 if (isFullscreen) { | |
267 queryParams = parseQueryParams(); | |
268 // check scalerBaseUrl | |
269 if (settings.scalerBaseUrl == null) { | |
270 // try the host this came from | |
271 var h = window.location.host; | |
272 if (window.location.host) { | |
273 var url = window.location.href; | |
274 // assume the page lives in [webapp]/jquery/ | |
275 var pos = url.indexOf('jquery/'); | |
276 if (pos > 0) { | |
277 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
652 | 278 } |
279 } | |
636 | 280 } |
668 | 281 } |
282 return this.each(function() { | |
283 var $elem = $(this); | |
284 var data = $elem.data('digilib'); | |
688 | 285 var params, elemSettings; |
668 | 286 // if the plugin hasn't been initialized yet |
287 if (!data) { | |
288 // merge query parameters | |
289 if (isFullscreen) { | |
688 | 290 params = queryParams; |
668 | 291 } else { |
688 | 292 params = parseImgParams($elem); |
727 | 293 if (jQuery.cookie) { |
294 // retrieve params from cookie | |
295 var ck = "digilib-embed:fn:" + escape(params.fn) + ":pn:" + (params.pn || '1'); | |
296 var cs = jQuery.cookie(ck); | |
297 console.debug("get cookie=", ck, " value=", cs); | |
298 if (cs) { | |
299 var cp = parseQueryString(cs); | |
728 | 300 // ignore fn and pn from cookie TODO: should we keep pn? |
301 delete cp.fn; | |
302 delete cp.pn; | |
303 jQuery.extend(params, cp); | |
727 | 304 } |
305 } | |
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306 } |
668 | 307 // store $(this) element in the settings |
728 | 308 elemSettings = jQuery.extend({}, settings, params); |
697 | 309 data = { |
668 | 310 $elem : $elem, |
311 settings : elemSettings, | |
688 | 312 queryParams : params |
668 | 313 }; |
314 // store in data element | |
315 $elem.data('digilib', data); | |
316 } | |
317 unpackParams(data); | |
741 | 318 // check if browser knows background-size |
319 for (var bs in {'':1, '-moz-':1, '-webkit-':1, '-o-':1}) { | |
320 if ($elem.css(bs+'background-size')) { | |
321 data.hasBgSize = true; | |
322 data.bgSizeName = bs+'background-size'; | |
323 break; | |
324 } | |
325 } | |
682 | 326 // create HTML structure for scaler |
668 | 327 setupScalerDiv(data); |
697 | 328 // add buttons |
329 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { | |
330 showButtons(data, true, i); | |
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331 } |
668 | 332 // bird's eye view creation |
710 | 333 if (elemSettings.isBirdDivVisible) { |
638 | 334 setupBirdDiv(data); |
723 | 335 data.$birdDiv.show(); |
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336 } |
668 | 337 // about window creation - TODO: could be deferred? restrict to only one item? |
338 setupAboutDiv(data); | |
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339 // drag zoom area around in scaler div |
707 | 340 setupZoomDrag(data); |
668 | 341 }); |
342 }, | |
343 | |
344 // destroy: clean up digilib | |
345 destroy : function(data) { | |
346 return this.each(function(){ | |
347 var $elem = $(this); | |
348 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
349 data.digilib.remove(); | |
350 $elem.removeData('digilib'); | |
351 }); | |
352 }, | |
353 | |
354 // show or hide the 'about' window | |
355 showAboutDiv : function(data, show) { | |
356 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
357 }, | |
655 | 358 |
668 | 359 // event handler: toggles the visibility of the bird's eye window |
360 showBirdDiv : function (data, show) { | |
726 | 361 var settings = data.settings; |
668 | 362 if (data.$birdDiv == null) { |
363 // no bird div -> create | |
364 setupBirdDiv(data); | |
365 } | |
726 | 366 settings.isBirdDivVisible = showDiv(settings.isBirdDivVisible, data.$birdDiv, show); |
367 updateBirdDiv(data); | |
723 | 368 storeOptions(data); |
369 // data.$birdImg.triggerHandler('load'); // TODO: we shouldn't do that | |
668 | 370 }, |
371 | |
372 // goto given page nr (+/-: relative) | |
373 gotoPage : function (data, pageNr) { | |
374 var settings = data.settings; | |
375 var oldpn = settings.pn; | |
716 | 376 if (pageNr == null) { |
377 pageNr = window.prompt("Goto page number", oldpn); | |
378 } | |
668 | 379 var pn = setNumValue(settings, "pn", pageNr); |
380 if (pn == null) return false; // nothing happened | |
381 if (pn < 1) { | |
382 alert("no such page (page number too low)"); | |
383 settings.pn = oldpn; | |
384 return false; | |
385 } | |
386 if (settings.pt) { | |
387 if (pn > settings.pt) { | |
388 alert("no such page (page number too high)"); | |
623 | 389 settings.pn = oldpn; |
390 return false; | |
634 | 391 } |
668 | 392 } |
393 // reset mk and others(?) | |
394 data.marks = []; | |
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395 data.zoomArea = FULL_AREA; |
668 | 396 // then reload |
397 redisplay(data); | |
398 }, | |
654 | 399 |
668 | 400 // zoom by a given factor |
401 zoomBy : function (data, factor) { | |
402 zoomBy(data, factor); | |
403 }, | |
647 | 404 |
668 | 405 // zoom interactively |
406 zoomArea : function (data) { | |
407 zoomArea(data); | |
408 }, | |
650 | 409 |
668 | 410 // zoom out to full page |
411 zoomFull : function (data, mode) { | |
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412 data.zoomArea = FULL_AREA; |
668 | 413 if (mode === 'width') { |
414 data.dlOpts.fitwidth = 1; | |
415 delete data.dlOpts.fitheight; | |
416 } else if (mode === 'height') { | |
417 data.dlOpts.fitheight = 1; | |
418 delete data.dlOpts.fitwidth; | |
419 } else { | |
420 delete data.dlOpts.fitwidth; | |
421 delete data.dlOpts.fitheight; | |
422 } | |
423 redisplay(data); | |
424 }, | |
425 | |
426 // set a mark by clicking (or giving a position) | |
427 setMark : function (data, mpos) { | |
428 if (mpos == null) { | |
429 // interactive | |
430 setMark(data); | |
431 } else { | |
432 // use position | |
433 data.marks.push(pos); | |
663 | 434 redisplay(data); |
604 | 435 } |
668 | 436 }, |
437 | |
438 // remove the last mark | |
439 removeMark : function (data) { | |
440 data.marks.pop(); | |
441 redisplay(data); | |
442 }, | |
443 | |
444 // mirror the image | |
445 mirror : function (data, mode) { | |
446 var flags = data.scalerFlags; | |
447 if (mode === 'h') { | |
448 if (flags.hmir) { | |
449 delete flags.hmir; | |
450 } else { | |
451 flags.hmir = 1; | |
452 } | |
453 } else { | |
454 if (flags.vmir) { | |
455 delete flags.vmir; | |
456 } else { | |
457 flags.vmir = 1; | |
458 } | |
459 } | |
460 redisplay(data); | |
461 }, | |
650 | 462 |
668 | 463 // rotate the image |
464 rotate : function (data, angle) { | |
465 var rot = data.settings.rot; | |
466 if (angle == null) { | |
467 angle = window.prompt("Rotation angle:", rot); | |
468 } | |
469 data.settings.rot = angle; | |
470 redisplay(data); | |
471 }, | |
472 | |
473 // change brightness | |
474 brightness : function (data, factor) { | |
475 var brgt = data.settings.brgt; | |
476 if (factor == null) { | |
477 factor = window.prompt("Brightness (-255..255)", brgt); | |
478 } | |
479 data.settings.brgt = factor; | |
480 redisplay(data); | |
481 }, | |
482 | |
483 // change contrast | |
484 contrast : function (data, factor) { | |
485 var cont = data.settings.cont; | |
486 if (factor == null) { | |
487 factor = window.prompt("Contrast (-8, 8)", cont); | |
488 } | |
489 data.settings.cont = factor; | |
490 redisplay(data); | |
688 | 491 }, |
710 | 492 |
690 | 493 // display more (or less) button sets |
494 morebuttons : function (data, more) { | |
696 | 495 var settings = data.settings; |
699 | 496 if (more == null) { |
703 | 497 // toggle more or less (only works for 2 sets) |
699 | 498 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
499 if (settings.visibleButtonSets >= maxbtns) { | |
500 more = '-1'; | |
501 } else { | |
502 more = '+1'; | |
503 } | |
504 } | |
690 | 505 if (more === '-1') { |
506 // remove set | |
697 | 507 var setIdx = settings.visibleButtonSets - 1; |
508 if (showButtons(data, false, setIdx, true)) { | |
509 settings.visibleButtonSets--; | |
510 } | |
690 | 511 } else { |
512 // add set | |
697 | 513 var setIdx = settings.visibleButtonSets; |
514 if (showButtons(data, true, setIdx, true)) { | |
515 settings.visibleButtonSets++; | |
690 | 516 } |
517 } | |
723 | 518 // persist setting |
519 storeOptions(data); | |
691 | 520 }, |
688 | 521 |
703 | 522 // reset image parameters to defaults |
688 | 523 reset : function (data) { |
524 var settings = data.settings; | |
525 var paramNames = settings.digilibParamNames; | |
526 var params = data.queryParams; | |
527 // delete all digilib parameters | |
528 for (var i = 0; i < paramNames.length; i++) { | |
529 var paramName = paramNames[i]; | |
530 delete settings[paramName]; | |
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531 } |
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532 settings.fn = params.fn || ''; // no default defined |
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533 settings.pn = params.pn || defaults.pn; |
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534 settings.dw = params.dw; |
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535 settings.dh = params.dh; |
709 | 536 settings.isBirdDivVisible = false; |
537 settings.visibleButtonSets = 1; | |
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538 // resets zoomArea, marks, scalerflags |
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539 data.zoomArea = FULL_AREA; |
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540 data.marks = []; |
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541 data.scalerFlags = {}; |
712 | 542 delete data.dlOpts.fitwidth; |
543 delete data.dlOpts.fitheight; | |
688 | 544 redisplay(data); |
689 | 545 }, |
546 | |
703 | 547 // presents a reference url (returns value if noprompt) |
548 reference : function (data, noprompt) { | |
689 | 549 var settings = data.settings; |
550 var url; | |
551 if (settings.interactionMode === 'fullscreen') { | |
552 url = getDigilibUrl(data); | |
553 } else { | |
554 url = getScalerUrl(data); | |
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555 } |
703 | 556 if (noprompt == null) { |
557 window.prompt("URL reference to the current view", url); | |
558 } | |
559 return url; | |
560 }, | |
710 | 561 |
703 | 562 // set image quality |
563 setquality : function (data, qual) { | |
564 var oldq = getQuality(data); | |
565 if (qual == null) { | |
566 qual = window.prompt("Image quality (0..2)", oldq); | |
567 } | |
568 qual = parseInt(qual, 10); | |
569 if (qual >= 0 && qual <= 2) { | |
570 setQuality(data, qual); | |
571 redisplay(data); | |
572 } | |
668 | 573 } |
605 | 574 }; |
604 | 575 |
608 | 576 // returns parameters from page url |
607 | 577 var parseQueryParams = function() { |
636 | 578 return parseQueryString(window.location.search.slice(1)); |
579 }; | |
655 | 580 |
636 | 581 // returns parameters from embedded img-element |
607 | 582 var parseImgParams = function($elem) { |
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583 var src = $elem.find('img').first().attr('src'); |
710 | 584 if (!src) return null; |
607 | 585 var pos = src.indexOf('?'); |
586 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
587 var scalerUrl = src.substring(0, pos); | |
627 | 588 var params = parseQueryString(query); |
589 params.scalerBaseUrl = scalerUrl; | |
590 return params; | |
636 | 591 }; |
607 | 592 |
608 | 593 // parses query parameter string into parameter object |
607 | 594 var parseQueryString = function(query) { |
701 | 595 var params = {}; |
596 if (query == null) return params; | |
607 | 597 var pairs = query.split("&"); |
636 | 598 //var keys = []; |
607 | 599 for (var i = 0; i < pairs.length; i++) { |
600 var pair = pairs[i].split("="); | |
601 if (pair.length === 2) { | |
627 | 602 params[pair[0]] = pair[1]; |
636 | 603 //keys.push(pair[0]); |
634 | 604 } |
636 | 605 } |
627 | 606 return params; |
636 | 607 }; |
668 | 608 |
643 | 609 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
610 var getParamString = function (settings, keys, defaults) { | |
615 | 611 var paramString = ''; |
650 | 612 var nx = false; |
615 | 613 for (i = 0; i < keys.length; ++i) { |
614 var key = keys[i]; | |
663 | 615 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 616 // first param gets no '&' |
650 | 617 if (nx) { |
618 paramString += '&'; | |
619 } else { | |
620 nx = true; | |
621 } | |
615 | 622 // add parm=val |
623 paramString += key + '=' + settings[key]; | |
643 | 624 } |
615 | 625 } |
626 return paramString; | |
631 | 627 }; |
628 | |
636 | 629 // returns URL and query string for Scaler |
630 var getScalerUrl = function (data) { | |
741 | 631 packParams(data); |
653 | 632 var settings = data.settings; |
652 | 633 if (settings.scalerBaseUrl == null) { |
634 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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635 } |
636 | 636 var keys = settings.scalerParamNames; |
643 | 637 var queryString = getParamString(settings, keys, defaults); |
636 | 638 var url = settings.scalerBaseUrl + '?' + queryString; |
639 return url; | |
640 }; | |
641 | |
741 | 642 // returns URL for bird's eye view image |
643 var getBirdImgUrl = function (data) { | |
644 var settings = data.settings; | |
645 var birdDivOptions = { | |
646 dw : settings.birdDivWidth, | |
647 dh : settings.birdDivHeight | |
648 }; | |
649 var birdSettings = $.extend({}, settings, birdDivOptions); | |
650 // use only the relevant parameters | |
651 var url = settings.scalerBaseUrl + '?' + | |
652 getParamString(birdSettings, settings.birdDivParams); | |
653 return url; | |
654 }; | |
655 | |
636 | 656 // returns URL and query string for current digilib |
644
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657 var getDigilibUrl = function (data) { |
643 | 658 packParams(data); |
636 | 659 var settings = data.settings; |
644
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660 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
636 | 661 var url = window.location.toString(); |
662 var pos = url.indexOf('?'); | |
663 var baseUrl = url.substring(0, pos); | |
664 var newurl = baseUrl + '?' + queryString; | |
665 return newurl; | |
666 }; | |
667 | |
655 | 668 // processes some parameters into objects and stuff |
631 | 669 var unpackParams = function (data) { |
670 var settings = data.settings; | |
636 | 671 // zoom area |
631 | 672 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 673 data.zoomArea = zoomArea; |
636 | 674 // marks |
631 | 675 var marks = []; |
650 | 676 if (settings.mk) { |
677 var mk = settings.mk; | |
678 if (mk.indexOf(";") >= 0) { | |
679 var pa = mk.split(";"); // old format with ";" | |
680 } else { | |
681 var pa = mk.split(","); // new format | |
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682 } |
650 | 683 for (var i = 0; i < pa.length ; i++) { |
684 var pos = pa[i].split("/"); | |
685 if (pos.length > 1) { | |
686 marks.push(geom.position(pos[0], pos[1])); | |
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687 } |
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689 } |
643 | 690 data.marks = marks; |
650 | 691 // mo (Scaler flags) |
692 var flags = {}; | |
693 if (settings.mo) { | |
694 var pa = settings.mo.split(","); | |
695 for (var i = 0; i < pa.length ; i++) { | |
696 flags[pa[i]] = pa[i]; | |
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697 } |
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698 } |
650 | 699 data.scalerFlags = flags; |
723 | 700 retrieveOptions(data); |
655 | 701 }; |
702 | |
631 | 703 // put objects back into parameters |
704 var packParams = function (data) { | |
705 var settings = data.settings; | |
636 | 706 // zoom area |
643 | 707 if (data.zoomArea) { |
647 | 708 settings.wx = cropFloat(data.zoomArea.x); |
709 settings.wy = cropFloat(data.zoomArea.y); | |
710 settings.ww = cropFloat(data.zoomArea.width); | |
711 settings.wh = cropFloat(data.zoomArea.height); | |
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712 } |
636 | 713 // marks |
643 | 714 if (data.marks) { |
650 | 715 settings.mk = ''; |
643 | 716 for (var i = 0; i < data.marks.length; i++) { |
650 | 717 if (i) { |
718 settings.mk += ','; | |
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719 } |
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720 settings.mk += cropFloat(data.marks[i].x).toString() + |
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721 '/' + cropFloat(data.marks[i].y).toString(); |
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722 } |
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723 } |
650 | 724 // Scaler flags |
725 if (data.scalerFlags) { | |
726 var mo = ''; | |
727 for (var f in data.scalerFlags) { | |
728 if (mo) { | |
729 mo += ','; | |
730 } | |
731 mo += f; | |
732 } | |
733 settings.mo = mo; | |
734 } | |
710 | 735 // user interface options |
723 | 736 storeOptions(data); |
709 | 737 }; |
688 | 738 |
723 | 739 var storeOptions = function (data) { |
701 | 740 // save digilib options in cookie |
709 | 741 var settings = data.settings; |
742 if (data.dlOpts) { | |
743 // save digilib settings in options | |
744 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
745 data.dlOpts.buttons = settings.visibleButtonSets; | |
746 var clop = ''; | |
747 for (var o in data.dlOpts) { | |
748 if (clop) { | |
749 clop += '&'; | |
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750 } |
709 | 751 clop += o + '=' + data.dlOpts[o]; |
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752 } |
709 | 753 if (jQuery.cookie) { |
754 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
755 console.debug("set cookie=", ck, " value=", clop); | |
756 jQuery.cookie(ck, clop); | |
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757 } |
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758 } |
727 | 759 if (settings.interactionMode !== 'fullscreen' && jQuery.cookie) { |
760 // store normal parameters in cookie for embedded mode | |
761 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
762 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
763 console.debug("set cookie=", ck, " value=", qs); | |
764 jQuery.cookie(ck, qs); | |
765 } | |
631 | 766 }; |
655 | 767 |
723 | 768 var retrieveOptions = function (data) { |
709 | 769 // clop (digilib options) |
770 var opts = {}; | |
771 var settings = data.settings; | |
772 if (jQuery.cookie) { | |
773 // read from cookie | |
774 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
775 var cp = jQuery.cookie(ck); | |
776 console.debug("get cookie=", ck, " value=", cp); | |
777 // in query string format | |
778 opts = parseQueryString(cp); | |
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779 } |
709 | 780 data.dlOpts = opts; |
781 // birdview option | |
782 if (opts.birdview != null) { | |
783 settings.isBirdDivVisible = opts.birdview === '1'; | |
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784 } |
709 | 785 // visible button sets |
786 if (opts.buttons != null) { | |
787 settings.visibleButtonSets = opts.buttons; | |
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788 } |
711 | 789 }; |
709 | 790 |
622 | 791 // (re)load the img from a new scaler URL |
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792 var redisplay = function (data) { |
636 | 793 var settings = data.settings; |
794 if (settings.interactionMode === 'fullscreen') { | |
795 // update location.href (browser URL) in fullscreen mode | |
644
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796 var url = getDigilibUrl(data); |
636 | 797 var history = window.history; |
798 if (typeof(history.pushState) === 'function') { | |
799 console.debug("we could modify history, but we don't..."); | |
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800 } |
636 | 801 window.location = url; |
802 } else { | |
803 // embedded mode -- just change img src | |
804 var url = getScalerUrl(data); | |
805 data.$img.attr('src', url); | |
726 | 806 // redisplay bird img |
807 updateBirdDiv(data); | |
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808 } |
622 | 809 }; |
810 | |
662 | 811 // returns maximum size for scaler img in fullscreen mode |
812 var getFullscreenImgSize = function($elem) { | |
813 var $win = $(window); | |
814 var winH = $win.height(); | |
815 var winW = $win.width(); | |
816 // TODO: account for borders? | |
817 return geom.size(winW, winH); | |
818 }; | |
819 | |
608 | 820 // creates HTML structure for digilib in elem |
627 | 821 var setupScalerDiv = function (data) { |
822 var settings = data.settings; | |
647 | 823 var $elem = data.$elem; |
725 | 824 $elem.addClass('digilib'); |
728 | 825 var $img; |
826 var scalerUrl; | |
608 | 827 if (settings.interactionMode === 'fullscreen') { |
728 | 828 // fullscreen |
725 | 829 $elem.addClass('dl_fullscreen'); |
609 | 830 var imgSize = getFullscreenImgSize($elem); |
650 | 831 // fitwidth/height omits destination height/width |
728 | 832 if (data.dlOpts.fitheight == null) { |
650 | 833 settings.dw = imgSize.width; |
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834 } |
728 | 835 if (data.dlOpts.fitwidth == null) { |
650 | 836 settings.dh = imgSize.height; |
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837 } |
686 | 838 scalerUrl = getScalerUrl(data); |
728 | 839 $img = $('<img/>'); |
609 | 840 } else { |
728 | 841 // embedded mode -- try to keep img tag |
725 | 842 $elem.addClass('dl_embedded'); |
728 | 843 scalerUrl = getScalerUrl(data); |
623 | 844 $img = $elem.find('img'); |
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845 if ($img.length > 0) { |
728 | 846 oldUrl = $img.attr('src'); |
847 if (oldUrl === scalerUrl) { | |
848 console.debug("img detach:", $img); | |
849 $img.detach(); | |
850 } else { | |
851 $img = $('<img/>'); | |
852 } | |
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853 } else { |
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854 $img = $('<img/>'); |
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855 } |
608 | 856 } |
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857 // create new html |
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858 $elem.empty(); // TODO: should we keep stuff for customization? |
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859 var $scaler = $('<div class="scaler"/>'); |
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860 $elem.append($scaler); |
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861 $scaler.append($img); |
622 | 862 $img.addClass('pic'); |
649 | 863 data.$scaler = $scaler; |
636 | 864 data.$img = $img; |
687 | 865 // setup image load handler before setting the src attribute (IE bug) |
866 $img.load(scalerImgLoadedHandler(data)); | |
867 $img.attr('src', scalerUrl); | |
608 | 868 }; |
615 | 869 |
610 | 870 // creates HTML structure for buttons in elem |
697 | 871 var createButtons = function (data, buttonSetIdx) { |
647 | 872 var $elem = data.$elem; |
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873 var settings = data.settings; |
665 | 874 var mode = settings.interactionMode; |
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875 var buttonSettings = settings.buttonSettings[mode]; |
682 | 876 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
690 | 877 if (buttonGroup == null) { |
878 // no buttons here | |
879 return; | |
880 } | |
881 var $buttonsDiv = $('<div class="buttons"/>'); | |
682 | 882 var buttonNames = buttonSettings[buttonGroup]; |
883 for (var i = 0; i < buttonNames.length; i++) { | |
884 var buttonName = buttonNames[i]; | |
885 var buttonConfig = settings.buttons[buttonName]; | |
665 | 886 // construct the button html |
887 var $button = $('<div class="button"></div>'); | |
888 var $a = $('<a/>'); | |
889 var $img = $('<img class="button"/>'); | |
890 $buttonsDiv.append($button); | |
891 $button.append($a); | |
892 $a.append($img); | |
893 // add attributes and bindings | |
894 $button.attr('title', buttonConfig.tooltip); | |
682 | 895 $button.addClass('button-' + buttonName); |
665 | 896 // create handler for the buttons |
897 $a.bind('click.digilib', (function () { | |
898 // we create a new closure to capture the value of action | |
899 var action = buttonConfig.onclick; | |
900 if ($.isArray(action)) { | |
901 // the handler function calls digilib with action and parameters | |
902 return function (evt) { | |
903 console.debug('click action=', action, ' evt=', evt); | |
904 $elem.digilib.apply($elem, action); | |
905 return false; | |
906 }; | |
907 } else { | |
908 // the handler function calls digilib with action | |
909 return function (evt) { | |
910 console.debug('click action=', action, ' evt=', evt); | |
911 $elem.digilib(action); | |
912 return false; | |
913 }; | |
914 } | |
915 })()); | |
916 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
690 | 917 } |
662 | 918 // make buttons div scroll if too large for window |
919 if ($buttonsDiv.height() > $(window).height() - 10) { | |
920 $buttonsDiv.css('position', 'absolute'); | |
921 } | |
697 | 922 // buttons hidden at first |
923 $buttonsDiv.hide(); | |
924 $elem.append($buttonsDiv); | |
682 | 925 if (data.$buttonSets == null) { |
697 | 926 // first button set |
682 | 927 data.$buttonSets = [$buttonsDiv]; |
928 } else { | |
690 | 929 $elem.append($buttonsDiv); |
682 | 930 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
931 } | |
612 | 932 return $buttonsDiv; |
610 | 933 }; |
615 | 934 |
935 // creates HTML structure for the bird's eye view in elem | |
638 | 936 var setupBirdDiv = function (data) { |
647 | 937 var $elem = data.$elem; |
615 | 938 // the bird's eye div |
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939 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
615 | 940 // the detail indicator frame |
726 | 941 var $birdZoom = $('<div class="birdzoom" style="display:none; background-color:transparent;"/>'); |
615 | 942 // the small image |
943 var $birdImg = $('<img class="birdimg"/>'); | |
723 | 944 data.$birdDiv = $birdDiv; |
945 data.$birdZoom = $birdZoom; | |
946 data.$birdImg = $birdImg; | |
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947 $elem.append($birdDiv); |
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948 $birdDiv.append($birdZoom); |
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949 $birdDiv.append($birdImg); |
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950 $birdZoom.css(data.settings.birdIndicatorStyle); |
723 | 951 var birdUrl = getBirdImgUrl(data); |
658
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952 $birdImg.load(birdImgLoadedHandler(data)); |
723 | 953 $birdImg.attr('src', birdUrl); |
954 }; | |
955 | |
956 // update bird's eye view | |
957 var updateBirdDiv = function (data) { | |
958 if (!data.settings.isBirdDivVisible) return; | |
959 var $birdImg = data.$birdImg; | |
960 var oldsrc = $birdImg.attr('src'); | |
961 var newsrc = getBirdImgUrl(data); | |
962 if (oldsrc !== newsrc) { | |
963 $birdImg.attr('src', newsrc); | |
964 // onload handler re-renders | |
965 } else { | |
966 // re-render | |
967 renderBirdArea(data); | |
730 | 968 // enable click and drag |
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969 setupBirdDrag(data); |
723 | 970 } |
719
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971 }; |
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972 |
625 | 973 // creates HTML structure for the about view in elem |
628
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974 var setupAboutDiv = function (data) { |
647 | 975 var $elem = data.$elem; |
628
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976 var settings = data.settings; |
625 | 977 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
616 | 978 var $header = $('<p>Digilib Graphic Viewer</p>'); |
979 var $link = $('<a/>'); | |
980 var $logo = $('<img class="logo" title="digilib"/>'); | |
981 var $content = $('<p/>'); | |
982 $elem.append($aboutDiv); | |
983 $aboutDiv.append($header); | |
984 $aboutDiv.append($link); | |
985 $aboutDiv.append($content); | |
986 $link.append($logo); | |
987 $logo.attr('src', settings.logoUrl); | |
635 | 988 $link.attr('href', settings.homeUrl); |
616 | 989 $content.text('Version: ' + settings.version); |
635 | 990 // click hides |
649 | 991 $aboutDiv.bind('click.digilib', function () { |
646 | 992 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
649 | 993 return false; |
710 | 994 }); |
635 | 995 data.$aboutDiv = $aboutDiv; |
634 | 996 }; |
997 | |
635 | 998 // shows some window e.g. 'about' (toggle visibility if show is null) |
999 var showDiv = function (isVisible, $div, show) { | |
645 | 1000 if (show == null) { |
635 | 1001 // toggle visibility |
1002 isVisible = !isVisible; | |
1003 } else { | |
1004 // set visibility | |
1005 isVisible = show; | |
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1006 } |
635 | 1007 if (isVisible) { |
1008 $div.fadeIn(); | |
1009 } else { | |
1010 $div.fadeOut(); | |
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1011 } |
635 | 1012 return isVisible; |
634 | 1013 }; |
616 | 1014 |
697 | 1015 // display more (or less) button sets |
1016 var showButtons = function (data, more, setIdx, animated) { | |
711 | 1017 var atime = animated ? 'fast': 0; |
697 | 1018 if (more) { |
1019 // add set | |
1020 var $otherSets = data.$elem.find('div.buttons:visible'); | |
1021 var $set; | |
1022 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
1023 // set exists | |
1024 $set = data.$buttonSets[setIdx]; | |
1025 } else { | |
1026 $set = createButtons(data, setIdx); | |
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1027 } |
697 | 1028 if ($set == null) return false; |
1029 var btnWidth = $set.width(); | |
1030 // move remaining sets left and show new set | |
711 | 1031 if ($otherSets.length > 0) { |
1032 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
1033 function () {$set.show();}); | |
697 | 1034 } else { |
1035 $set.show(); | |
711 | 1036 } |
697 | 1037 } else { |
1038 // remove set | |
1039 var $set = data.$buttonSets[setIdx]; | |
1040 if ($set == null) return false; | |
1041 var btnWidth = $set.width(); | |
1042 // hide last set | |
1043 $set.hide(); | |
1044 // take remaining sets and move right | |
1045 var $otherSets = data.$elem.find('div.buttons:visible'); | |
711 | 1046 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
1047 } | |
697 | 1048 return true; |
1049 }; | |
1050 | |
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1051 // create Transform from area and $img |
675 | 1052 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
658
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1053 var picrect = geom.rectangle($img); |
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1054 var trafo = geom.transform(); |
675 | 1055 // move zoom area offset to center |
658
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1056 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
675 | 1057 // scale zoom area size to [1,1] |
658
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1058 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
675 | 1059 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
1060 if (rot || hmir || vmir) { | |
1061 // move [0.5,0.5] to center | |
1062 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
1063 if (hmir) { | |
1064 // mirror about center | |
1065 trafo.concat(trafo.getMirror('y')); | |
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1066 } |
675 | 1067 if (vmir) { |
1068 // mirror about center | |
1069 trafo.concat(trafo.getMirror('x')); | |
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1070 } |
675 | 1071 if (rot) { |
1072 // rotate around center | |
1073 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
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1074 } |
675 | 1075 // move back |
1076 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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1077 } |
664
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1078 // scale to screen position and size |
658
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1079 trafo.concat(trafo.getScale(picrect)); |
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1080 trafo.concat(trafo.getTranslation(picrect)); |
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1081 return trafo; |
655 | 1082 }; |
678
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1083 |
613
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1084 // returns function for load event of scaler img |
636 | 1085 var scalerImgLoadedHandler = function (data) { |
633 | 1086 return function () { |
723 | 1087 var $img = $(this); |
738 | 1088 var $scaler = data.$scaler; |
627 | 1089 // create Transform from current area and picsize |
675 | 1090 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
1091 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
686 | 1092 console.debug("imgTrafo=", data.imgTrafo); |
733 | 1093 // adjust scaler div size |
738 | 1094 var imgRect = geom.rectangle($img); |
733 | 1095 console.debug("imgrect=", imgRect); |
738 | 1096 imgRect.adjustDiv($scaler); |
715 | 1097 // show image in case it was hidden (for example in zoomDrag) |
733 | 1098 $img.css('visibility', 'visible'); |
741 | 1099 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
627 | 1100 // display marks |
633 | 1101 renderMarks(data); |
742
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1102 // enable drag-to-scroll |
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1103 setupZoomDrag(data); |
695
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1104 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation |
658
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1105 }; |
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1106 }; |
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1107 |
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1108 // returns function for load event of bird's eye view img |
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1109 var birdImgLoadedHandler = function (data) { |
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1110 return function () { |
723 | 1111 var $img = $(this); |
677
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1112 console.debug("birdimg loaded! this=", this, " data=", data); |
658
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1113 // create Transform from current area and picsize |
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1114 data.birdTrafo = getImgTrafo($img, FULL_AREA); |
668 | 1115 // display red indicator around zoomarea |
723 | 1116 renderBirdArea(data); |
1117 // enable click and drag | |
732
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1118 setupBirdDrag(data); |
613
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1119 }; |
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1120 }; |
633 | 1121 |
1122 // place marks on the image | |
1123 var renderMarks = function (data) { | |
647 | 1124 var $elem = data.$elem; |
643 | 1125 var marks = data.marks; |
742
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1126 // clear marks |
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1127 $elem.find('div.mark').remove(); |
633 | 1128 for (var i = 0; i < marks.length; i++) { |
1129 var mark = marks[i]; | |
643 | 1130 if (data.zoomArea.containsPosition(mark)) { |
633 | 1131 var mpos = data.imgTrafo.transform(mark); |
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1132 console.debug("renderMarks: mpos=",mpos); |
633 | 1133 // create mark |
1134 var html = '<div class="mark">'+(i+1)+'</div>'; | |
1135 var $mark = $(html); | |
1136 $elem.append($mark); | |
742
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1137 mpos.adjustDiv($mark); |
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1138 } |
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1139 } |
633 | 1140 }; |
655 | 1141 |
677
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1142 // show zoom area indicator on bird's eye view |
723 | 1143 var renderBirdArea = function (data) { |
678
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1144 var $birdZoom = data.$birdZoom; |
659 | 1145 var zoomArea = data.zoomArea; |
723 | 1146 var normalSize = isFullArea(zoomArea); |
1147 if (normalSize) { | |
1148 $birdZoom.hide(); | |
1149 return; | |
1150 } else { | |
1151 $birdZoom.show(); | |
1152 } | |
730 | 1153 // position may have changed |
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1154 data.birdTrafo = getImgTrafo(data.$birdImg, FULL_AREA); |
738 | 1155 var zoomRect = data.birdTrafo.transform(zoomArea); |
741 | 1156 // acount for border width |
1157 zoomRect.addPosition({x : -2, y : -2}); | |
670
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1158 if (data.settings.interactionMode === 'fullscreen') { |
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1159 // no animation for fullscreen |
738 | 1160 zoomRect.adjustDiv($birdZoom); |
723 | 1161 } else { |
1162 // nice animation for embedded mode :-) | |
741 | 1163 // correct offsetParent because animate doesn't use offset |
726 | 1164 var ppos = $birdZoom.offsetParent().offset(); |
738 | 1165 var dest = { |
1166 left : (zoomRect.x - ppos.left) + 'px', | |
1167 top : (zoomRect.y - ppos.top) + 'px', | |
1168 width : zoomRect.width, | |
1169 height : zoomRect.height}; | |
1170 $birdZoom.animate(dest); | |
723 | 1171 } |
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1172 }; |
659 | 1173 |
647 | 1174 // zooms by the given factor |
643 | 1175 var zoomBy = function(data, factor) { |
1176 var area = data.zoomArea; | |
1177 var newarea = area.copy(); | |
1178 // scale | |
1179 newarea.width /= factor; | |
1180 newarea.height /= factor; | |
1181 // and recenter | |
1182 newarea.x -= 0.5 * (newarea.width - area.width); | |
1183 newarea.y -= 0.5 * (newarea.height - area.height); | |
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1184 newarea = FULL_AREA.fit(newarea); |
643 | 1185 data.zoomArea = newarea; |
644
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1186 redisplay(data); |
643 | 1187 }; |
1188 | |
647 | 1189 // add a mark where clicked |
1190 var setMark = function (data) { | |
649 | 1191 var $scaler = data.$scaler; |
742
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1192 // unbind other handler |
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1193 $scaler.unbind(".dlZoomDrag"); |
647 | 1194 // start event capturing |
742
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1195 $scaler.one('mousedown.dlSetMark', function (evt) { |
647 | 1196 // event handler adding a new mark |
742
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1197 console.log("setmark at=", evt); |
672
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1198 var mpos = geom.position(evt); |
647 | 1199 var pos = data.imgTrafo.invtransform(mpos); |
1200 data.marks.push(pos); | |
1201 redisplay(data); | |
742
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1202 return false; |
647 | 1203 }); |
1204 }; | |
668 | 1205 |
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1206 // zoom to the area around two clicked points |
654 | 1207 var zoomArea = function(data) { |
1208 $elem = data.$elem; | |
1209 $scaler = data.$scaler; | |
1210 var pt1, pt2; | |
1211 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
1212 $elem.append($zoomDiv); | |
668 | 1213 $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 1214 var picRect = geom.rectangle($scaler); |
1215 // FIX ME: is there a way to query the border width from CSS info? | |
1216 // rect.x -= 2; // account for overlay borders | |
1217 // rect.y -= 2; | |
1218 | |
1219 var zoomStart = function (evt) { | |
1220 pt1 = geom.position(evt); | |
1221 // setup and show zoom div | |
738 | 1222 pt1.adjustDiv($zoomDiv); |
668 | 1223 $zoomDiv.width(0).height(0); |
654 | 1224 $zoomDiv.show(); |
1225 // register events | |
738 | 1226 $elem.bind("mousemove.dlZoomArea", zoomMove); |
1227 $elem.bind("mouseup.dlZoomArea", zoomEnd); | |
654 | 1228 return false; |
1229 }; | |
668 | 1230 |
741 | 1231 // mouse move handler |
1232 var zoomMove = function (evt) { | |
1233 pt2 = geom.position(evt); | |
1234 var rect = geom.rectangle(pt1, pt2); | |
1235 rect.clipTo(picRect); | |
1236 // update zoom div | |
1237 rect.adjustDiv($zoomDiv); | |
1238 return false; | |
1239 }; | |
1240 | |
654 | 1241 // mouseup handler: end moving |
1242 var zoomEnd = function (evt) { | |
1243 pt2 = geom.position(evt); | |
1244 // assume a click and continue if the area is too small | |
1245 var clickRect = geom.rectangle(pt1, pt2); | |
710 | 1246 if (clickRect.getArea() <= 5) return false; |
654 | 1247 // hide zoom div |
1248 $zoomDiv.remove(); | |
1249 // unregister events | |
738 | 1250 $elem.unbind("mousemove.dlZoomArea", zoomMove); |
1251 $elem.unbind("mouseup.dlZoomArea", zoomEnd); | |
654 | 1252 // clip and transform |
1253 clickRect.clipTo(picRect); | |
1254 var area = data.imgTrafo.invtransform(clickRect); | |
1255 data.zoomArea = area; | |
1256 // zoomed is always fit | |
1257 data.settings.ws = 1; | |
738 | 1258 delete data.dlOpts.fitwidth; |
1259 delete data.dlOpts.fitheight; | |
654 | 1260 redisplay(data); |
1261 return false; | |
1262 }; | |
668 | 1263 |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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|
1264 // clear old handler (also ZoomDrag) |
738 | 1265 $scaler.unbind('.dlZoomArea'); |
742
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|
1266 $scaler.unbind(".dlZoomDrag"); |
738 | 1267 $elem.unbind('.dlZoomArea'); |
654 | 1268 // bind start zoom handler |
738 | 1269 $scaler.one('mousedown.dlZoomArea', zoomStart); |
654 | 1270 }; |
647 | 1271 |
723 | 1272 // bird's eye view zoom area click and drag handler |
732
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really renamed birdMoveArea, really merged fix for no zoom area.
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diff
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|
1273 var setupBirdDrag = function(data) { |
678
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|
1274 var $birdImg = data.$birdImg; |
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|
1275 var $birdZoom = data.$birdZoom; |
730 | 1276 var $document = $(document); |
678
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|
1277 var startPos, newRect, birdImgRect, birdZoomRect; |
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|
1278 |
741 | 1279 // mousedown handler: start dragging bird zoom to a new position |
1280 var birdZoomStartDrag = function(evt) { | |
1281 startPos = geom.position(evt); | |
1282 // position may have changed | |
1283 data.birdTrafo = getImgTrafo($birdImg, FULL_AREA); | |
1284 birdImgRect = geom.rectangle($birdImg); | |
1285 birdZoomRect = geom.rectangle($birdZoom); | |
1286 newRect = null; | |
1287 $document.bind("mousemove.dlBirdMove", birdZoomMove); | |
1288 $document.bind("mouseup.dlBirdMove", birdZoomEndDrag); | |
1289 $birdZoom.bind("mousemove.dlBirdMove", birdZoomMove); | |
1290 $birdZoom.bind("mouseup.dlBirdMove", birdZoomEndDrag); | |
1291 return false; | |
1292 }; | |
1293 | |
733 | 1294 // mousemove handler: drag |
678
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|
1295 var birdZoomMove = function(evt) { |
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|
1296 var pos = geom.position(evt); |
730 | 1297 var delta = startPos.delta(pos); |
678
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|
1298 // move birdZoom div, keeping size |
730 | 1299 newRect = birdZoomRect.copy(); |
733 | 1300 newRect.addPosition(delta); |
678
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|
1301 // stay within birdimage |
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|
1302 newRect.stayInside(birdImgRect); |
730 | 1303 newRect.adjustDiv($birdZoom); |
678
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first step at dragging birdview zoom indicator around
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diff
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|
1304 return false; |
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diff
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|
1305 }; |
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|
1306 |
733 | 1307 // mouseup handler: reload page |
678
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first step at dragging birdview zoom indicator around
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|
1308 var birdZoomEndDrag = function(evt) { |
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|
1309 var settings = data.settings; |
730 | 1310 $document.unbind("mousemove.dlBirdMove", birdZoomMove); |
1311 $document.unbind("mouseup.dlBirdMove", birdZoomEndDrag); | |
1312 $birdZoom.unbind("mousemove.dlBirdMove", birdZoomMove); | |
1313 $birdZoom.unbind("mouseup.dlBirdMove", birdZoomEndDrag); | |
1314 if (newRect == null) { | |
1315 // no movement happened - set center to click position | |
678
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|
1316 startPos = birdZoomRect.getCenter(); |
730 | 1317 birdZoomMove(evt); |
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|
1318 } |
730 | 1319 var newArea = data.birdTrafo.invtransform(newRect); |
1320 data.zoomArea = newArea; | |
678
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|
1321 redisplay(data); |
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|
1322 return false; |
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|
1323 }; |
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|
1324 |
730 | 1325 // clear old handler |
1326 $document.unbind(".dlBirdMove"); | |
1327 $birdImg.unbind(".dlBirdMove"); | |
1328 $birdZoom.unbind(".dlBirdMove"); | |
732
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|
1329 if (! isFullArea(data.zoomArea)) { |
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|
1330 // set new handler |
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|
1331 $birdImg.bind("mousedown.dlBirdMove", birdZoomStartDrag); |
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|
1332 $birdZoom.bind("mousedown.dlBirdMove", birdZoomStartDrag); |
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|
1333 } |
678
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|
1334 }; |
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|
1335 |
738 | 1336 // setup handlers for dragging the zoomed image |
705 | 1337 var setupZoomDrag = function(data) { |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
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|
1338 var startPos, delta, fullRect, isBgReady; |
733 | 1339 var $document = $(document); |
705 | 1340 var $elem = data.$elem; |
1341 var $scaler = data.$scaler; | |
1342 var $img = data.$img; | |
710 | 1343 |
733 | 1344 // drag the image and load a new detail on mouse up |
705 | 1345 var dragStart = function (evt) { |
742
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diff
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|
1346 console.debug("dragstart at=",evt); |
737
7c93bdbb5153
setup zoomdrag even when image is not initially zoomed
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diff
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|
1347 // don't start dragging if not zoomed |
7c93bdbb5153
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|
1348 if (isFullArea(data.zoomArea)) return false; |
733 | 1349 startPos = geom.position(evt); |
741 | 1350 fullRect = null; |
1351 delta = null; | |
742
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|
1352 isBgReady = false; |
733 | 1353 $document.bind("mousemove.dlZoomDrag", dragMove); |
1354 $document.bind("mouseup.dlZoomDrag", dragEnd); | |
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|
1355 return false; |
705 | 1356 }; |
742
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|
1357 |
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|
1358 |
733 | 1359 // mousemove handler: drag zoomed image |
705 | 1360 var dragMove = function (evt) { |
1361 var pos = geom.position(evt); | |
741 | 1362 delta = startPos.delta(pos); |
742
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|
1363 if (!isBgReady) { |
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|
1364 // hide the scaler img, show background of div instead |
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|
1365 $img.css('visibility', 'hidden'); |
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|
1366 var scalerCss = { |
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|
1367 'background-image' : 'url(' + $img.attr('src') + ')', |
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|
1368 'background-repeat' : 'no-repeat', |
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|
1369 'background-position' : 'left top', |
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|
1370 'opacity' : '0.5', |
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|
1371 'cursor' : 'move' |
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|
1372 }; |
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|
1373 if (data.hasBgSize) { |
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|
1374 // full-size background using CSS3-background-size |
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diff
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|
1375 fullRect = data.imgTrafo.transform(FULL_AREA); |
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|
1376 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) { |
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
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|
1377 // correct offset because background is relative |
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diff
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|
1378 var scalePos = geom.position($scaler); |
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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|
1379 fullRect.addPosition(scalePos.neg()); |
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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|
1380 scalerCss['background-image'] = 'url(' + getBirdImgUrl(data) + ')'; |
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diff
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|
1381 scalerCss[data.bgSizeName] = fullRect.width + 'px ' + fullRect.height + 'px'; |
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diff
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|
1382 scalerCss['background-position'] = fullRect.x + 'px '+ fullRect.y + 'px'; |
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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|
1383 } else { |
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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|
1384 // too big |
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|
1385 fullRect = null; |
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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|
1386 } |
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|
1387 } |
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
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|
1388 $scaler.css(scalerCss); |
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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|
1389 isBgReady = true; |
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|
1390 } |
741 | 1391 if (fullRect) { |
1392 var bgPos = fullRect.getPosition().add(delta); | |
1393 } else { | |
1394 var bgPos = delta; | |
1395 } | |
705 | 1396 // move the background image to the new position |
715 | 1397 $scaler.css({ |
741 | 1398 'background-position' : bgPos.x + "px " + bgPos.y + "px" |
705 | 1399 }); |
1400 return false; | |
1401 }; | |
710 | 1402 |
733 | 1403 // mouseup handler: reload zoomed image in new position |
705 | 1404 var dragEnd = function (evt) { |
739 | 1405 $scaler.css('cursor', 'auto'); |
733 | 1406 $document.unbind("mousemove.dlZoomDrag", dragMove); |
1407 $document.unbind("mouseup.dlZoomDrag", dragEnd); | |
1408 if (delta == null || delta.distance() < 2) { | |
1409 // no movement | |
1410 $img.css('visibility', 'visible'); | |
741 | 1411 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
733 | 1412 return false; |
1413 } | |
1414 // get old zoom area (screen coordinates) | |
741 | 1415 var za = geom.rectangle($img); |
733 | 1416 // move |
741 | 1417 za.addPosition(delta.neg()); |
733 | 1418 // transform back |
1419 var newArea = data.imgTrafo.invtransform(za); | |
735
790a7673bef0
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|
1420 data.zoomArea = FULL_AREA.fit(newArea); |
708
120ace160386
img reload works for fullscreen, but somehow not precise
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707
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changeset
|
1421 redisplay(data); |
705 | 1422 return false; |
1423 }; | |
735
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improved some embedded buttons; fixed reset function
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diff
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|
1424 |
733 | 1425 // clear old handler |
1426 $document.unbind(".dlZoomDrag"); | |
741 | 1427 $scaler.unbind(".dlZoomDrag"); |
742
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|
1428 if (! isFullArea(data.zoomArea)) { |
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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changeset
|
1429 // set handler |
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changeset
|
1430 $scaler.bind("mousedown.dlZoomDrag", dragStart); |
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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|
1431 } |
705 | 1432 }; |
1433 | |
703 | 1434 // get image quality as a number (0..2) |
1435 var getQuality = function (data) { | |
1436 var flags = data.scalerFlags; | |
1437 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
1438 return parseInt(q[1], 10); | |
706 | 1439 }; |
703 | 1440 |
1441 // set image quality as a number (0..2) | |
1442 var setQuality = function (data, qual) { | |
1443 var flags = data.scalerFlags; | |
1444 // clear flags | |
1445 for (var i = 0; i < 3; ++i) { | |
1446 delete flags['q'+i]; | |
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|
1447 } |
703 | 1448 flags['q'+qual] = 'q'+qual; |
706 | 1449 }; |
710 | 1450 |
650 | 1451 // sets a key to a value (relative values with +/- if relative=true) |
1452 var setNumValue = function(settings, key, value) { | |
716 | 1453 if (value == null) return null; |
713
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|
1454 if (isNumber(value)) { |
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changeset
|
1455 settings[key] = value; |
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|
1456 return value; |
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|
1457 } |
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|
1458 var sign = value[0]; |
650 | 1459 if (sign === '+' || sign === '-') { |
1460 if (settings[key] == null) { | |
651
694bdb86cbad
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diff
changeset
|
1461 // this isn't perfect but still... |
650 | 1462 settings[key] = 0; |
713
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|
1463 } |
650 | 1464 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
1465 } else { | |
1466 settings[key] = value; | |
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|
1467 } |
650 | 1468 return settings[key]; |
1469 }; | |
655 | 1470 |
1471 // auxiliary function (from old dllib.js) | |
732
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really renamed birdMoveArea, really merged fix for no zoom area.
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|
1472 var isFullArea = function(area) { |
659 | 1473 return (area.width === 1.0) && (area.height === 1.0); |
655 | 1474 }; |
1475 | |
641 | 1476 // auxiliary function (from Douglas Crockford, A.10) |
1477 var isNumber = function isNumber(value) { | |
710 | 1478 return typeof value === 'number' && isFinite(value); |
641 | 1479 }; |
655 | 1480 |
631 | 1481 // auxiliary function to crop senseless precision |
1482 var cropFloat = function (x) { | |
637 | 1483 return parseInt(10000 * x, 10) / 10000; |
631 | 1484 }; |
655 | 1485 |
692 | 1486 // fallback for console.log calls |
1487 if (customConsole) { | |
1488 var logFunction = function(type) { | |
1489 return function(){ | |
1490 var $debug = $('#debug'); // debug div | |
1491 if (!$debug) return; | |
1492 var args = Array.prototype.slice.call(arguments); | |
1493 var argtext = args.join(' '); | |
1494 var $logDiv = $('<div/>'); | |
1495 $logDiv.addClass(type); | |
1496 $logDiv.text(argtext); | |
1497 $debug.append($logDiv); | |
1498 }; | |
1499 }; | |
1500 console.log = logFunction('_log'); | |
1501 console.debug = logFunction('_debug'); | |
1502 console.error = logFunction('_error'); | |
713
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|
1503 } |
692 | 1504 |
605 | 1505 // hook plugin into jquery |
651
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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diff
changeset
|
1506 $.fn.digilib = function(action) { |
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renamed 'actions' to 'buttons' and 'methods' to 'actions'
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diff
changeset
|
1507 if (actions[action]) { |
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renamed 'actions' to 'buttons' and 'methods' to 'actions'
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diff
changeset
|
1508 // call action on this with the remaining arguments (inserting data as first argument) |
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diff
changeset
|
1509 var $elem = $(this); |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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diff
changeset
|
1510 var data = $elem.data('digilib'); |
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diff
changeset
|
1511 var args = Array.prototype.slice.call(arguments, 1); |
694bdb86cbad
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diff
changeset
|
1512 args.unshift(data); |
694bdb86cbad
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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diff
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1513 return actions[action].apply(this, args); |
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1514 } else if (typeof(action) === 'object' || !action) { |
634 | 1515 // call init on this |
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1516 return actions.init.apply(this, arguments); |
605 | 1517 } else { |
713
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more cosmetics: added options to validate with http://www.jslint.com
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1518 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
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1519 } |
605 | 1520 }; |
692 | 1521 |
604 | 1522 })(jQuery); |