Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 714:e7655e38764b jquery
get rid of currently unused SEParator button
author | hertzhaft |
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date | Mon, 31 Jan 2011 13:34:32 +0100 |
parents | 653f0a87550c |
children | db1c0aea4599 |
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 /** |
597 | 21 * digilib jQuery plugin |
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22 * |
597 | 23 */ |
648 | 24 |
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25 /*jslint browser: true, debug: true, forin: true */ |
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26 |
629 | 27 // fallback for console.log calls |
28 if (typeof(console) === 'undefined') { | |
29 var console = { | |
685 | 30 log : function(){}, |
31 debug : function(){}, | |
32 error : function(){} | |
33 }; | |
34 var customConsole = true; | |
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35 } |
597 | 36 |
37 (function($) { | |
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38 var buttons = { |
603 | 39 reference : { |
682 | 40 onclick : "reference", |
603 | 41 tooltip : "get a reference URL", |
42 img : "reference.png" | |
43 }, | |
44 zoomin : { | |
636 | 45 onclick : ["zoomBy", 1.4], |
603 | 46 tooltip : "zoom in", |
47 img : "zoom-in.png" | |
48 }, | |
49 zoomout : { | |
636 | 50 onclick : ["zoomBy", 0.7], |
603 | 51 tooltip : "zoom out", |
52 img : "zoom-out.png" | |
53 }, | |
54 zoomarea : { | |
647 | 55 onclick : "zoomArea", |
603 | 56 tooltip : "zoom area", |
57 img : "zoom-area.png" | |
58 }, | |
59 zoomfull : { | |
643 | 60 onclick : "zoomFull", |
603 | 61 tooltip : "view the whole image", |
62 img : "zoom-full.png" | |
63 }, | |
64 pagewidth : { | |
643 | 65 onclick : ["zoomFull", "width"], |
603 | 66 tooltip : "page width", |
67 img : "pagewidth.png" | |
68 }, | |
69 back : { | |
616 | 70 onclick : ["gotoPage", "-1"], |
603 | 71 tooltip : "goto previous image", |
72 img : "back.png" | |
73 }, | |
74 fwd : { | |
616 | 75 onclick : ["gotoPage", "+1"], |
603 | 76 tooltip : "goto next image", |
77 img : "fwd.png" | |
78 }, | |
79 page : { | |
709 | 80 onclick : "gotoPage", |
81 tooltip : "goto image number", | |
603 | 82 img : "page.png" |
83 }, | |
84 bird : { | |
628 | 85 onclick : "showBirdDiv", |
603 | 86 tooltip : "show bird's eye view", |
87 img : "birds-eye.png" | |
88 }, | |
89 help : { | |
628 | 90 onclick : "showAboutDiv", |
603 | 91 tooltip : "about Digilib", |
92 img : "help.png" | |
93 }, | |
94 reset : { | |
681 | 95 onclick : "reset", |
603 | 96 tooltip : "reset image", |
97 img : "reset.png" | |
98 }, | |
99 mark : { | |
640 | 100 onclick : "setMark", |
603 | 101 tooltip : "set a mark", |
102 img : "mark.png" | |
103 }, | |
104 delmark : { | |
643 | 105 onclick : "removeMark", |
603 | 106 tooltip : "delete the last mark", |
107 img : "delmark.png" | |
108 }, | |
109 hmir : { | |
654 | 110 onclick : ["mirror", "h"], |
603 | 111 tooltip : "mirror horizontally", |
112 img : "mirror-horizontal.png" | |
113 }, | |
114 vmir : { | |
654 | 115 onclick : ["mirror", "v"], |
603 | 116 tooltip : "mirror vertically", |
117 img : "mirror-vertical.png" | |
118 }, | |
119 rot : { | |
656 | 120 onclick : "rotate", |
603 | 121 tooltip : "rotate image", |
122 img : "rotate.png" | |
123 }, | |
124 brgt : { | |
656 | 125 onclick : "brightness", |
603 | 126 tooltip : "set brightness", |
127 img : "brightness.png" | |
128 }, | |
129 cont : { | |
656 | 130 onclick : "contrast", |
603 | 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 : { | |
696 | 140 onclick : "setquality", |
603 | 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 }, | |
692 | 159 toggleoptions : { |
160 onclick : "morebuttons", | |
161 tooltip : "more options", | |
162 img : "options.png" | |
163 }, | |
683 | 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", | |
603 | 172 img : "options.png" |
173 }, | |
174 SEP : { | |
175 img : "sep.png" | |
176 } | |
177 }; | |
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178 |
598 | 179 var defaults = { |
609 | 180 // version of this script |
628 | 181 'version' : 'jquery.digilib.js 0.9', |
609 | 182 // logo url |
183 'logoUrl' : '../img/digilib-logo-text1.png', | |
628 | 184 // homepage url (behind logo) |
185 'homeUrl' : 'http://digilib.berlios.de', | |
603 | 186 // base URL to Scaler servlet |
645 | 187 'scalerBaseUrl' : null, |
603 | 188 // list of Scaler parameters |
620 | 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 | |
636 | 192 'pn' : 1, |
620 | 193 'ww' : 1.0, |
194 'wh' : 1.0, | |
195 'wx' : 0.0, | |
196 'wy' : 0.0, | |
197 'ws' : 1.0, | |
636 | 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, | |
637
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207 // list of digilib parameters |
643 | 208 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
637
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209 // digilib parameter defaults |
636 | 210 'mk' : '', |
643 | 211 'clop' : '', |
636 | 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 | |
603 | 215 'interactionMode' : 'fullscreen', |
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216 // buttons |
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217 'buttons' : buttons, |
661 | 218 // defaults for digilib buttons |
658 | 219 'buttonSettings' : { |
220 'fullscreen' : { | |
661 | 221 // path to button images (must end with a slash) |
658 | 222 'imagePath' : 'img/fullscreen/', |
714 | 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"], | |
675 | 225 'buttonSets' : ['standardSet', 'specialSet'] |
658 | 226 }, |
227 'embedded' : { | |
228 'imagePath' : 'img/embedded/16/', | |
714 | 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"], | |
675 | 231 'buttonSets' : ['standardSet', 'specialSet'] |
658 | 232 } |
690 | 233 }, |
234 // number of visible button groups | |
235 'visibleButtonSets' : 1, | |
609 | 236 // is birdView shown? |
237 'isBirdDivVisible' : false, | |
661 | 238 // dimensions of bird's eye div |
667 | 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'], |
661 | 243 // style of the zoom area indicator in the bird's eye div |
652 | 244 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
661 | 245 // style of zoom area "rubber band" |
246 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
609 | 247 // is the "about" window shown? |
248 'isAboutDivVisible' : false | |
249 | |
603 | 250 }; |
648 | 251 |
601 | 252 // affine geometry classes |
253 var geom = dlGeometry(); | |
648 | 254 |
636 | 255 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
648 | 256 |
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257 var actions = { |
661 | 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'; | |
645 | 276 } |
277 } | |
629 | 278 } |
661 | 279 } |
280 return this.each(function() { | |
281 var $elem = $(this); | |
282 var data = $elem.data('digilib'); | |
681 | 283 var params, elemSettings; |
661 | 284 // if the plugin hasn't been initialized yet |
285 if (!data) { | |
286 // merge query parameters | |
287 if (isFullscreen) { | |
681 | 288 params = queryParams; |
661 | 289 } else { |
681 | 290 params = parseImgParams($elem); |
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291 } |
661 | 292 // store $(this) element in the settings |
681 | 293 elemSettings = $.extend({}, settings, params); |
690 | 294 data = { |
661 | 295 $elem : $elem, |
296 settings : elemSettings, | |
681 | 297 queryParams : params |
661 | 298 }; |
299 // store in data element | |
300 $elem.data('digilib', data); | |
301 } | |
302 unpackParams(data); | |
675 | 303 // create HTML structure for scaler |
661 | 304 setupScalerDiv(data); |
690 | 305 // add buttons |
306 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { | |
307 showButtons(data, true, i); | |
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308 } |
661 | 309 // bird's eye view creation |
703 | 310 if (elemSettings.isBirdDivVisible) { |
631 | 311 setupBirdDiv(data); |
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312 } |
661 | 313 // about window creation - TODO: could be deferred? restrict to only one item? |
314 setupAboutDiv(data); | |
703 | 315 // TODO: the actual moving code |
700 | 316 setupZoomDrag(data); |
661 | 317 }); |
318 }, | |
319 | |
320 // destroy: clean up digilib | |
321 destroy : function(data) { | |
322 return this.each(function(){ | |
323 var $elem = $(this); | |
324 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
325 data.digilib.remove(); | |
326 $elem.removeData('digilib'); | |
327 }); | |
328 }, | |
329 | |
330 // show or hide the 'about' window | |
331 showAboutDiv : function(data, show) { | |
332 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
333 }, | |
648 | 334 |
661 | 335 // event handler: toggles the visibility of the bird's eye window |
336 showBirdDiv : function (data, show) { | |
337 if (data.$birdDiv == null) { | |
338 // no bird div -> create | |
339 setupBirdDiv(data); | |
340 } | |
341 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
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342 data.$birdImg.triggerHandler('load'); |
661 | 343 }, |
344 | |
345 // goto given page nr (+/-: relative) | |
346 gotoPage : function (data, pageNr) { | |
347 var settings = data.settings; | |
348 var oldpn = settings.pn; | |
709 | 349 if (pageNr == null) { |
350 pageNr = window.prompt("Goto page number", oldpn); | |
351 } | |
661 | 352 var pn = setNumValue(settings, "pn", pageNr); |
353 if (pn == null) return false; // nothing happened | |
354 if (pn < 1) { | |
355 alert("no such page (page number too low)"); | |
356 settings.pn = oldpn; | |
357 return false; | |
358 } | |
359 if (settings.pt) { | |
360 if (pn > settings.pt) { | |
361 alert("no such page (page number too high)"); | |
616 | 362 settings.pn = oldpn; |
363 return false; | |
627 | 364 } |
661 | 365 } |
366 // reset mk and others(?) | |
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367 // TODO: adjust bird div |
661 | 368 data.marks = []; |
369 data.zoomArea = MAX_ZOOMAREA; | |
370 // then reload | |
371 redisplay(data); | |
372 }, | |
647 | 373 |
661 | 374 // zoom by a given factor |
375 zoomBy : function (data, factor) { | |
376 zoomBy(data, factor); | |
377 }, | |
640 | 378 |
661 | 379 // zoom interactively |
380 zoomArea : function (data) { | |
381 zoomArea(data); | |
382 }, | |
643 | 383 |
661 | 384 // zoom out to full page |
385 zoomFull : function (data, mode) { | |
386 data.zoomArea = MAX_ZOOMAREA; | |
387 if (mode === 'width') { | |
388 data.dlOpts.fitwidth = 1; | |
389 delete data.dlOpts.fitheight; | |
390 } else if (mode === 'height') { | |
391 data.dlOpts.fitheight = 1; | |
392 delete data.dlOpts.fitwidth; | |
393 } else { | |
394 delete data.dlOpts.fitwidth; | |
395 delete data.dlOpts.fitheight; | |
396 } | |
397 redisplay(data); | |
398 }, | |
399 | |
400 // set a mark by clicking (or giving a position) | |
401 setMark : function (data, mpos) { | |
402 if (mpos == null) { | |
403 // interactive | |
404 setMark(data); | |
405 } else { | |
406 // use position | |
407 data.marks.push(pos); | |
656 | 408 redisplay(data); |
597 | 409 } |
661 | 410 }, |
411 | |
412 // remove the last mark | |
413 removeMark : function (data) { | |
414 data.marks.pop(); | |
415 redisplay(data); | |
416 }, | |
417 | |
418 // mirror the image | |
419 mirror : function (data, mode) { | |
420 var flags = data.scalerFlags; | |
421 if (mode === 'h') { | |
422 if (flags.hmir) { | |
423 delete flags.hmir; | |
424 } else { | |
425 flags.hmir = 1; | |
426 } | |
427 } else { | |
428 if (flags.vmir) { | |
429 delete flags.vmir; | |
430 } else { | |
431 flags.vmir = 1; | |
432 } | |
433 } | |
434 redisplay(data); | |
435 }, | |
643 | 436 |
661 | 437 // rotate the image |
438 rotate : function (data, angle) { | |
439 var rot = data.settings.rot; | |
440 if (angle == null) { | |
441 angle = window.prompt("Rotation angle:", rot); | |
442 } | |
443 data.settings.rot = angle; | |
444 redisplay(data); | |
445 }, | |
446 | |
447 // change brightness | |
448 brightness : function (data, factor) { | |
449 var brgt = data.settings.brgt; | |
450 if (factor == null) { | |
451 factor = window.prompt("Brightness (-255..255)", brgt); | |
452 } | |
453 data.settings.brgt = factor; | |
454 redisplay(data); | |
455 }, | |
456 | |
457 // change contrast | |
458 contrast : function (data, factor) { | |
459 var cont = data.settings.cont; | |
460 if (factor == null) { | |
461 factor = window.prompt("Contrast (-8, 8)", cont); | |
462 } | |
463 data.settings.cont = factor; | |
464 redisplay(data); | |
681 | 465 }, |
703 | 466 |
683 | 467 // display more (or less) button sets |
468 morebuttons : function (data, more) { | |
689 | 469 var settings = data.settings; |
692 | 470 if (more == null) { |
696 | 471 // toggle more or less (only works for 2 sets) |
692 | 472 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
473 if (settings.visibleButtonSets >= maxbtns) { | |
474 more = '-1'; | |
475 } else { | |
476 more = '+1'; | |
477 } | |
478 } | |
683 | 479 if (more === '-1') { |
480 // remove set | |
690 | 481 var setIdx = settings.visibleButtonSets - 1; |
482 if (showButtons(data, false, setIdx, true)) { | |
483 settings.visibleButtonSets--; | |
484 } | |
683 | 485 } else { |
486 // add set | |
690 | 487 var setIdx = settings.visibleButtonSets; |
488 if (showButtons(data, true, setIdx, true)) { | |
489 settings.visibleButtonSets++; | |
683 | 490 } |
491 } | |
684 | 492 }, |
681 | 493 |
696 | 494 // reset image parameters to defaults |
681 | 495 reset : function (data) { |
496 var settings = data.settings; | |
497 var paramNames = settings.digilibParamNames; | |
498 var params = data.queryParams; | |
702 | 499 // resets zoomArea, marks, scalerflags |
681 | 500 resetData(data); |
501 // delete all digilib parameters | |
502 for (var i = 0; i < paramNames.length; i++) { | |
503 var paramName = paramNames[i]; | |
504 delete settings[paramName]; | |
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505 } |
681 | 506 // fullscreen: restore only fn/pn parameters |
507 if (settings.interactionMode === 'fullscreen') { | |
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508 settings.fn = params.fn || ''; // no default defined |
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509 settings.pn = params.pn || defaults.pn; |
681 | 510 // embedded: restore original parameters |
511 } else { | |
512 $.extend(settings, params); | |
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513 } |
702 | 514 // TODO: should we really reset all user preferences here? |
515 settings.isBirdDivVisible = false; | |
516 settings.visibleButtonSets = 1; | |
705 | 517 delete data.dlOpts.fitwidth; |
518 delete data.dlOpts.fitheight; | |
681 | 519 redisplay(data); |
682 | 520 }, |
521 | |
696 | 522 // presents a reference url (returns value if noprompt) |
523 reference : function (data, noprompt) { | |
682 | 524 var settings = data.settings; |
525 var url; | |
526 if (settings.interactionMode === 'fullscreen') { | |
527 url = getDigilibUrl(data); | |
528 } else { | |
529 url = getScalerUrl(data); | |
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530 } |
696 | 531 if (noprompt == null) { |
532 window.prompt("URL reference to the current view", url); | |
533 } | |
534 return url; | |
535 }, | |
703 | 536 |
696 | 537 // set image quality |
538 setquality : function (data, qual) { | |
539 var oldq = getQuality(data); | |
540 if (qual == null) { | |
541 qual = window.prompt("Image quality (0..2)", oldq); | |
542 } | |
543 qual = parseInt(qual, 10); | |
544 if (qual >= 0 && qual <= 2) { | |
545 setQuality(data, qual); | |
546 redisplay(data); | |
547 } | |
661 | 548 } |
598 | 549 }; |
597 | 550 |
601 | 551 // returns parameters from page url |
600 | 552 var parseQueryParams = function() { |
629 | 553 return parseQueryString(window.location.search.slice(1)); |
554 }; | |
648 | 555 |
629 | 556 // returns parameters from embedded img-element |
600 | 557 var parseImgParams = function($elem) { |
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558 var src = $elem.find('img').first().attr('src'); |
703 | 559 if (!src) return null; |
600 | 560 var pos = src.indexOf('?'); |
561 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
562 var scalerUrl = src.substring(0, pos); | |
620 | 563 var params = parseQueryString(query); |
564 params.scalerBaseUrl = scalerUrl; | |
565 return params; | |
629 | 566 }; |
600 | 567 |
601 | 568 // parses query parameter string into parameter object |
600 | 569 var parseQueryString = function(query) { |
694 | 570 var params = {}; |
571 if (query == null) return params; | |
600 | 572 var pairs = query.split("&"); |
629 | 573 //var keys = []; |
600 | 574 for (var i = 0; i < pairs.length; i++) { |
575 var pair = pairs[i].split("="); | |
576 if (pair.length === 2) { | |
620 | 577 params[pair[0]] = pair[1]; |
629 | 578 //keys.push(pair[0]); |
627 | 579 } |
629 | 580 } |
620 | 581 return params; |
629 | 582 }; |
661 | 583 |
636 | 584 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
585 var getParamString = function (settings, keys, defaults) { | |
608 | 586 var paramString = ''; |
643 | 587 var nx = false; |
608 | 588 for (i = 0; i < keys.length; ++i) { |
589 var key = keys[i]; | |
656 | 590 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
608 | 591 // first param gets no '&' |
643 | 592 if (nx) { |
593 paramString += '&'; | |
594 } else { | |
595 nx = true; | |
596 } | |
608 | 597 // add parm=val |
598 paramString += key + '=' + settings[key]; | |
636 | 599 } |
608 | 600 } |
601 return paramString; | |
624 | 602 }; |
603 | |
629 | 604 // returns URL and query string for Scaler |
605 var getScalerUrl = function (data) { | |
646 | 606 var settings = data.settings; |
645 | 607 if (settings.scalerBaseUrl == null) { |
608 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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609 } |
658 | 610 packParams(data); |
629 | 611 var keys = settings.scalerParamNames; |
636 | 612 var queryString = getParamString(settings, keys, defaults); |
629 | 613 var url = settings.scalerBaseUrl + '?' + queryString; |
614 return url; | |
615 }; | |
616 | |
617 // returns URL and query string for current digilib | |
637
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618 var getDigilibUrl = function (data) { |
636 | 619 packParams(data); |
629 | 620 var settings = data.settings; |
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621 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
629 | 622 var url = window.location.toString(); |
623 var pos = url.indexOf('?'); | |
624 var baseUrl = url.substring(0, pos); | |
625 var newurl = baseUrl + '?' + queryString; | |
626 return newurl; | |
627 }; | |
628 | |
648 | 629 // processes some parameters into objects and stuff |
624 | 630 var unpackParams = function (data) { |
631 var settings = data.settings; | |
629 | 632 // zoom area |
624 | 633 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
636 | 634 data.zoomArea = zoomArea; |
629 | 635 // marks |
624 | 636 var marks = []; |
643 | 637 if (settings.mk) { |
638 var mk = settings.mk; | |
639 if (mk.indexOf(";") >= 0) { | |
640 var pa = mk.split(";"); // old format with ";" | |
641 } else { | |
642 var pa = mk.split(","); // new format | |
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643 } |
643 | 644 for (var i = 0; i < pa.length ; i++) { |
645 var pos = pa[i].split("/"); | |
646 if (pos.length > 1) { | |
647 marks.push(geom.position(pos[0], pos[1])); | |
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648 } |
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649 } |
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650 } |
636 | 651 data.marks = marks; |
643 | 652 // mo (Scaler flags) |
653 var flags = {}; | |
654 if (settings.mo) { | |
655 var pa = settings.mo.split(","); | |
656 for (var i = 0; i < pa.length ; i++) { | |
657 flags[pa[i]] = pa[i]; | |
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658 } |
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659 } |
643 | 660 data.scalerFlags = flags; |
702 | 661 retrieveOptionsCookie(data); |
648 | 662 }; |
663 | |
624 | 664 // put objects back into parameters |
665 var packParams = function (data) { | |
666 var settings = data.settings; | |
629 | 667 // zoom area |
636 | 668 if (data.zoomArea) { |
640 | 669 settings.wx = cropFloat(data.zoomArea.x); |
670 settings.wy = cropFloat(data.zoomArea.y); | |
671 settings.ww = cropFloat(data.zoomArea.width); | |
672 settings.wh = cropFloat(data.zoomArea.height); | |
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673 } |
629 | 674 // marks |
636 | 675 if (data.marks) { |
643 | 676 settings.mk = ''; |
636 | 677 for (var i = 0; i < data.marks.length; i++) { |
643 | 678 if (i) { |
679 settings.mk += ','; | |
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680 } |
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681 settings.mk += cropFloat(data.marks[i].x).toString() + |
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682 '/' + cropFloat(data.marks[i].y).toString(); |
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683 } |
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684 } |
643 | 685 // Scaler flags |
686 if (data.scalerFlags) { | |
687 var mo = ''; | |
688 for (var f in data.scalerFlags) { | |
689 if (mo) { | |
690 mo += ','; | |
691 } | |
692 mo += f; | |
693 } | |
694 settings.mo = mo; | |
695 } | |
703 | 696 // user interface options |
702 | 697 storeOptionsCookie(data); |
698 }; | |
681 | 699 |
702 | 700 var storeOptionsCookie = function (data) { |
694 | 701 // save digilib options in cookie |
702 | 702 // TODO: in embedded mode this is not called |
694 | 703 /* store in parameter clop |
704 * if (data.dlOpts) { | |
705 var clop = ''; | |
706 for (var o in data.dlOpts) { | |
707 if (clop) { | |
643 | 708 clop += ','; |
709 } | |
710 clop += o; | |
711 } | |
712 settings.clop = clop; | |
694 | 713 } */ |
702 | 714 var settings = data.settings; |
715 if (data.dlOpts) { | |
716 // save digilib settings in options | |
717 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
718 data.dlOpts.buttons = settings.visibleButtonSets; | |
719 var clop = ''; | |
720 for (var o in data.dlOpts) { | |
721 if (clop) { | |
722 clop += '&'; | |
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723 } |
702 | 724 clop += o + '=' + data.dlOpts[o]; |
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725 } |
702 | 726 if (jQuery.cookie) { |
727 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
728 console.debug("set cookie=", ck, " value=", clop); | |
729 jQuery.cookie(ck, clop); | |
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730 } |
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731 } |
624 | 732 }; |
648 | 733 |
702 | 734 var retrieveOptionsCookie = function (data) { |
735 // clop (digilib options) | |
736 var opts = {}; | |
737 var settings = data.settings; | |
738 if (jQuery.cookie) { | |
739 /* read from parameter clop | |
740 * if (settings.clop) { | |
741 var pa = settings.clop.split(","); | |
742 for (var i = 0; i < pa.length ; i++) { | |
743 opts[pa[i]] = pa[i]; | |
744 } | |
745 } */ | |
746 // read from cookie | |
747 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
748 var cp = jQuery.cookie(ck); | |
749 console.debug("get cookie=", ck, " value=", cp); | |
750 // in query string format | |
751 opts = parseQueryString(cp); | |
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752 } |
702 | 753 data.dlOpts = opts; |
754 // birdview option | |
755 if (opts.birdview != null) { | |
756 settings.isBirdDivVisible = opts.birdview === '1'; | |
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757 } |
702 | 758 // visible button sets |
759 if (opts.buttons != null) { | |
760 settings.visibleButtonSets = opts.buttons; | |
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761 } |
704 | 762 }; |
702 | 763 |
681 | 764 // clear digilib data for reset |
765 var resetData = function (data) { | |
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766 // TODO: we should reset instead of delete |
681 | 767 if (data.zoomArea) delete data.zoomArea; |
768 if (data.marks) delete data.marks; | |
769 if (data.scalerFlags) delete data.scalerFlags; | |
770 }; | |
771 | |
615 | 772 // (re)load the img from a new scaler URL |
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773 var redisplay = function (data) { |
629 | 774 var settings = data.settings; |
775 if (settings.interactionMode === 'fullscreen') { | |
776 // update location.href (browser URL) in fullscreen mode | |
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777 var url = getDigilibUrl(data); |
629 | 778 var history = window.history; |
779 if (typeof(history.pushState) === 'function') { | |
780 console.debug("we could modify history, but we don't..."); | |
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781 } |
629 | 782 window.location = url; |
783 } else { | |
784 // embedded mode -- just change img src | |
785 var url = getScalerUrl(data); | |
786 data.$img.attr('src', url); | |
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787 // load new bird img (in case the scalerUrl has changed, like in gotopage) |
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788 showBirdDiv(data); |
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789 } |
615 | 790 }; |
791 | |
655 | 792 // returns maximum size for scaler img in fullscreen mode |
793 var getFullscreenImgSize = function($elem) { | |
794 var $win = $(window); | |
795 var winH = $win.height(); | |
796 var winW = $win.width(); | |
797 // TODO: account for borders? | |
798 return geom.size(winW, winH); | |
799 }; | |
800 | |
601 | 801 // creates HTML structure for digilib in elem |
620 | 802 var setupScalerDiv = function (data) { |
803 var settings = data.settings; | |
640 | 804 var $elem = data.$elem; |
679 | 805 var $img, scalerUrl; |
806 // fullscreen | |
601 | 807 if (settings.interactionMode === 'fullscreen') { |
602 | 808 var imgSize = getFullscreenImgSize($elem); |
643 | 809 // fitwidth/height omits destination height/width |
708 | 810 // if (data.dlOpts['fitheight'] !== '1') { |
811 if (data.dlOpts['fitheight'] == null) { | |
643 | 812 settings.dw = imgSize.width; |
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813 } |
708 | 814 // if (data.dlOpts['fitwidth'] !== '1') { |
815 if (data.dlOpts['fitwidth'] == null) { | |
643 | 816 settings.dh = imgSize.height; |
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817 } |
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818 $img = $('<img/>'); |
679 | 819 scalerUrl = getScalerUrl(data); |
820 // embedded mode -- try to keep img tag | |
602 | 821 } else { |
616 | 822 $img = $elem.find('img'); |
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823 if ($img.length > 0) { |
679 | 824 console.debug("img detach:", $img); |
825 scalerUrl = $img.attr('src'); | |
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826 $img.detach(); |
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827 } else { |
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828 $img = $('<img/>'); |
679 | 829 scalerUrl = getScalerUrl(data); |
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830 } |
601 | 831 } |
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832 // create new html |
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833 $elem.empty(); // TODO: should we keep stuff for customization? |
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834 var $scaler = $('<div class="scaler"/>'); |
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835 $elem.append($scaler); |
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836 $scaler.append($img); |
615 | 837 $img.addClass('pic'); |
642 | 838 data.$scaler = $scaler; |
629 | 839 data.$img = $img; |
680 | 840 // setup image load handler before setting the src attribute (IE bug) |
841 $img.load(scalerImgLoadedHandler(data)); | |
842 $img.attr('src', scalerUrl); | |
708 | 843 // set scaler div size explicitly in case $img is hidden (for zoomDrag) |
844 $imgRect = geom.rectangle($img); | |
845 $imgRect.adjustDiv(data.$scaler); | |
601 | 846 }; |
608 | 847 |
603 | 848 // creates HTML structure for buttons in elem |
690 | 849 var createButtons = function (data, buttonSetIdx) { |
640 | 850 var $elem = data.$elem; |
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851 var settings = data.settings; |
658 | 852 var mode = settings.interactionMode; |
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853 var buttonSettings = settings.buttonSettings[mode]; |
675 | 854 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
683 | 855 if (buttonGroup == null) { |
856 // no buttons here | |
857 return; | |
858 } | |
859 var $buttonsDiv = $('<div class="buttons"/>'); | |
675 | 860 var buttonNames = buttonSettings[buttonGroup]; |
861 for (var i = 0; i < buttonNames.length; i++) { | |
862 var buttonName = buttonNames[i]; | |
863 var buttonConfig = settings.buttons[buttonName]; | |
658 | 864 // construct the button html |
865 var $button = $('<div class="button"></div>'); | |
866 var $a = $('<a/>'); | |
867 var $img = $('<img class="button"/>'); | |
868 $buttonsDiv.append($button); | |
869 $button.append($a); | |
870 $a.append($img); | |
871 // add attributes and bindings | |
872 $button.attr('title', buttonConfig.tooltip); | |
675 | 873 $button.addClass('button-' + buttonName); |
658 | 874 // create handler for the buttons |
875 $a.bind('click.digilib', (function () { | |
876 // we create a new closure to capture the value of action | |
877 var action = buttonConfig.onclick; | |
878 if ($.isArray(action)) { | |
879 // the handler function calls digilib with action and parameters | |
880 return function (evt) { | |
881 console.debug('click action=', action, ' evt=', evt); | |
882 $elem.digilib.apply($elem, action); | |
883 return false; | |
884 }; | |
885 } else { | |
886 // the handler function calls digilib with action | |
887 return function (evt) { | |
888 console.debug('click action=', action, ' evt=', evt); | |
889 $elem.digilib(action); | |
890 return false; | |
891 }; | |
892 } | |
893 })()); | |
894 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
683 | 895 } |
655 | 896 // make buttons div scroll if too large for window |
897 if ($buttonsDiv.height() > $(window).height() - 10) { | |
898 $buttonsDiv.css('position', 'absolute'); | |
899 } | |
690 | 900 // buttons hidden at first |
901 $buttonsDiv.hide(); | |
902 $elem.append($buttonsDiv); | |
675 | 903 if (data.$buttonSets == null) { |
690 | 904 // first button set |
675 | 905 data.$buttonSets = [$buttonsDiv]; |
906 } else { | |
683 | 907 $elem.append($buttonsDiv); |
675 | 908 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
909 } | |
605 | 910 return $buttonsDiv; |
603 | 911 }; |
608 | 912 |
913 // creates HTML structure for the bird's eye view in elem | |
631 | 914 var setupBirdDiv = function (data) { |
640 | 915 var $elem = data.$elem; |
608 | 916 // the bird's eye div |
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917 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
608 | 918 // the detail indicator frame |
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919 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
608 | 920 // the small image |
921 var $birdImg = $('<img class="birdimg"/>'); | |
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922 $elem.append($birdDiv); |
671
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923 $birdDiv.append($birdZoom); |
651
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924 $birdDiv.append($birdImg); |
671
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925 $birdZoom.css(data.settings.birdIndicatorStyle); |
651
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926 data.$birdDiv = $birdDiv; |
671
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927 data.$birdZoom = $birdZoom; |
651
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928 data.$birdImg = $birdImg; |
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929 $birdImg.load(birdImgLoadedHandler(data)); |
712
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930 showBirdDiv(data); |
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931 birdZoom(data); |
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932 }; |
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933 |
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934 // puts correct img into bird div |
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935 var showBirdDiv = function (data) { |
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936 var settings = data.settings; |
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937 var $birdImg = data.$birdImg; |
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938 var $birdDiv = data.$birdDiv; |
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939 var birdDivOptions = { |
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940 dw : settings.birdDivWidth, |
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941 dh : settings.birdDivHeight |
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942 }; |
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943 var birdSettings = $.extend({}, settings, birdDivOptions); |
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944 // use only the relevant parameters |
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945 var birdUrl = settings.scalerBaseUrl + '?' |
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946 + getParamString(birdSettings, settings.birdDivParams); |
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947 // the bird's eye div |
608 | 948 $birdImg.attr('src', birdUrl); |
712
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949 if (settings.isBirdDivVisible) { |
680 | 950 $birdDiv.show(); |
706
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951 } |
633
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952 }; |
712
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953 |
608 | 954 |
618 | 955 // creates HTML structure for the about view in elem |
621
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956 var setupAboutDiv = function (data) { |
640 | 957 var $elem = data.$elem; |
621
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958 var settings = data.settings; |
618 | 959 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
609 | 960 var $header = $('<p>Digilib Graphic Viewer</p>'); |
961 var $link = $('<a/>'); | |
962 var $logo = $('<img class="logo" title="digilib"/>'); | |
963 var $content = $('<p/>'); | |
964 $elem.append($aboutDiv); | |
965 $aboutDiv.append($header); | |
966 $aboutDiv.append($link); | |
967 $aboutDiv.append($content); | |
968 $link.append($logo); | |
969 $logo.attr('src', settings.logoUrl); | |
628 | 970 $link.attr('href', settings.homeUrl); |
609 | 971 $content.text('Version: ' + settings.version); |
628 | 972 // click hides |
642 | 973 $aboutDiv.bind('click.digilib', function () { |
639 | 974 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
642 | 975 return false; |
703 | 976 }); |
628 | 977 data.$aboutDiv = $aboutDiv; |
627 | 978 }; |
979 | |
628 | 980 // shows some window e.g. 'about' (toggle visibility if show is null) |
981 var showDiv = function (isVisible, $div, show) { | |
638 | 982 if (show == null) { |
628 | 983 // toggle visibility |
984 isVisible = !isVisible; | |
985 } else { | |
986 // set visibility | |
987 isVisible = show; | |
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988 } |
628 | 989 if (isVisible) { |
990 $div.fadeIn(); | |
991 } else { | |
992 $div.fadeOut(); | |
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993 } |
628 | 994 return isVisible; |
627 | 995 }; |
609 | 996 |
690 | 997 // display more (or less) button sets |
998 var showButtons = function (data, more, setIdx, animated) { | |
704 | 999 var atime = animated ? 'fast': 0; |
690 | 1000 if (more) { |
1001 // add set | |
1002 var $otherSets = data.$elem.find('div.buttons:visible'); | |
1003 var $set; | |
1004 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
1005 // set exists | |
1006 $set = data.$buttonSets[setIdx]; | |
1007 } else { | |
1008 $set = createButtons(data, setIdx); | |
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1009 } |
690 | 1010 if ($set == null) return false; |
1011 var btnWidth = $set.width(); | |
1012 // move remaining sets left and show new set | |
704 | 1013 if ($otherSets.length > 0) { |
1014 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
1015 function () {$set.show();}); | |
690 | 1016 } else { |
1017 $set.show(); | |
704 | 1018 } |
690 | 1019 } else { |
1020 // remove set | |
1021 var $set = data.$buttonSets[setIdx]; | |
1022 if ($set == null) return false; | |
1023 var btnWidth = $set.width(); | |
1024 // hide last set | |
1025 $set.hide(); | |
1026 // take remaining sets and move right | |
1027 var $otherSets = data.$elem.find('div.buttons:visible'); | |
704 | 1028 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
1029 } | |
690 | 1030 return true; |
1031 }; | |
1032 | |
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1033 // create Transform from area and $img |
668 | 1034 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
651
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1035 var picrect = geom.rectangle($img); |
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1036 var trafo = geom.transform(); |
668 | 1037 // move zoom area offset to center |
651
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1038 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
668 | 1039 // scale zoom area size to [1,1] |
651
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1040 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
668 | 1041 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
1042 if (rot || hmir || vmir) { | |
1043 // move [0.5,0.5] to center | |
1044 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
1045 if (hmir) { | |
1046 // mirror about center | |
1047 trafo.concat(trafo.getMirror('y')); | |
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1048 } |
668 | 1049 if (vmir) { |
1050 // mirror about center | |
1051 trafo.concat(trafo.getMirror('x')); | |
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1052 } |
668 | 1053 if (rot) { |
1054 // rotate around center | |
1055 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
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1056 } |
668 | 1057 // move back |
1058 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
706
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1059 } |
657
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1060 // scale to screen position and size |
651
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1061 trafo.concat(trafo.getScale(picrect)); |
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1062 trafo.concat(trafo.getTranslation(picrect)); |
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1063 return trafo; |
648 | 1064 }; |
671
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1065 |
606
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1066 // returns function for load event of scaler img |
629 | 1067 var scalerImgLoadedHandler = function (data) { |
710
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1068 var $img = data.$img; |
626 | 1069 return function () { |
620 | 1070 console.debug("img loaded! this=", this, " data=", data); |
1071 // create Transform from current area and picsize | |
668 | 1072 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
1073 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
679 | 1074 console.debug("imgTrafo=", data.imgTrafo); |
713 | 1075 // set scaler div size explicitly in case $img is hidden (for zoomDrag) |
1076 var $imgRect = geom.rectangle(data.$img); | |
1077 console.debug("imgrect=", $imgRect); | |
1078 $imgRect.adjustDiv(data.$scaler); | |
708 | 1079 // show image in case it was hidden (for example in zoomDrag) |
1080 $img.show(); | |
620 | 1081 // display marks |
626 | 1082 renderMarks(data); |
688
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1083 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation |
671
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1084 var $birdImg = data.$birdImg; |
698 | 1085 // should the birdview adapt to mirror or rotation? decision: No. :-) |
663
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1086 if ($birdImg) { |
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1087 $birdImg.triggerHandler('load'); |
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1088 } |
651
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1089 }; |
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1090 }; |
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1091 |
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1092 // returns function for load event of bird's eye view img |
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1093 var birdImgLoadedHandler = function (data) { |
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1094 var $img = data.$birdImg; |
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1095 return function () { |
670
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1096 console.debug("birdimg loaded! this=", this, " data=", data); |
651
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1097 // create Transform from current area and picsize |
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1098 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
661 | 1099 // display red indicator around zoomarea |
671
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1100 renderbirdZoom(data); |
606
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1101 }; |
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1102 }; |
626 | 1103 |
1104 // place marks on the image | |
1105 var renderMarks = function (data) { | |
640 | 1106 var $elem = data.$elem; |
636 | 1107 var marks = data.marks; |
642 | 1108 // TODO: clear marks first(?) |
626 | 1109 for (var i = 0; i < marks.length; i++) { |
1110 var mark = marks[i]; | |
636 | 1111 if (data.zoomArea.containsPosition(mark)) { |
626 | 1112 var mpos = data.imgTrafo.transform(mark); |
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1113 console.debug("renderMarks: mpos=",mpos); |
626 | 1114 // create mark |
1115 var html = '<div class="mark">'+(i+1)+'</div>'; | |
1116 var $mark = $(html); | |
1117 $elem.append($mark); | |
647 | 1118 $mark.offset({left : mpos.x, top : mpos.y}); |
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1119 } |
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1120 } |
626 | 1121 }; |
648 | 1122 |
670
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1123 // show zoom area indicator on bird's eye view |
671
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1124 var renderbirdZoom = function (data) { |
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1125 var $birdZoom = data.$birdZoom; |
652 | 1126 var zoomArea = data.zoomArea; |
1127 var indRect = data.birdTrafo.transform(zoomArea); | |
663
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1128 var coords = { |
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1129 left : indRect.x-2, // acount for frame width |
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1130 top : indRect.y-2, |
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1131 width : indRect.width, |
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1132 height: indRect.height |
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1133 }; |
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1134 var normalSize = isFullArea(zoomArea); |
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1135 if (data.settings.interactionMode === 'fullscreen') { |
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1136 // no animation for fullscreen |
671
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1137 if (normalSize) return $birdZoom.hide(); |
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1138 $birdZoom.width(coords.width); |
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1139 $birdZoom.height(coords.height); |
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1140 $birdZoom.offset(coords); |
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1141 $birdZoom.show(); |
663
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1142 return; |
706
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1143 } |
663
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1144 // nice animation for embedded mode :-) |
671
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1145 var makeCompleteFunction = function($birdZoom, normalSize) { |
663
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1146 return function() { |
671
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1147 if (normalSize) $birdZoom.hide(); |
665
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1148 }; |
663
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1149 }; |
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1150 var opts = { |
671
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1151 'complete' : makeCompleteFunction($birdZoom, normalSize) |
663
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1152 }; |
671
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1153 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
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1154 $birdZoom.animate(coords, opts); |
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1155 }; |
652 | 1156 |
640 | 1157 // zooms by the given factor |
636 | 1158 var zoomBy = function(data, factor) { |
1159 var area = data.zoomArea; | |
1160 var newarea = area.copy(); | |
1161 // scale | |
1162 newarea.width /= factor; | |
1163 newarea.height /= factor; | |
1164 // and recenter | |
1165 newarea.x -= 0.5 * (newarea.width - area.width); | |
1166 newarea.y -= 0.5 * (newarea.height - area.height); | |
1167 newarea = MAX_ZOOMAREA.fit(newarea); | |
1168 data.zoomArea = newarea; | |
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1169 redisplay(data); |
636 | 1170 }; |
1171 | |
640 | 1172 // add a mark where clicked |
1173 var setMark = function (data) { | |
642 | 1174 var $scaler = data.$scaler; |
640 | 1175 // start event capturing |
642 | 1176 $scaler.one('click.digilib', function (evt) { |
640 | 1177 // event handler adding a new mark |
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1178 var mpos = geom.position(evt); |
640 | 1179 var pos = data.imgTrafo.invtransform(mpos); |
1180 data.marks.push(pos); | |
1181 redisplay(data); | |
642 | 1182 return false; // do we even get here? |
640 | 1183 }); |
1184 }; | |
661 | 1185 |
647 | 1186 var zoomArea = function(data) { |
1187 $elem = data.$elem; | |
1188 $scaler = data.$scaler; | |
1189 var pt1, pt2; | |
1190 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
1191 $elem.append($zoomDiv); | |
661 | 1192 $zoomDiv.css(data.settings.zoomrectStyle); |
647 | 1193 var picRect = geom.rectangle($scaler); |
1194 // FIX ME: is there a way to query the border width from CSS info? | |
1195 // rect.x -= 2; // account for overlay borders | |
1196 // rect.y -= 2; | |
1197 | |
1198 var zoomStart = function (evt) { | |
1199 pt1 = geom.position(evt); | |
1200 // setup and show zoom div | |
1201 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
1202 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
661 | 1203 $zoomDiv.width(0).height(0); |
647 | 1204 $zoomDiv.show(); |
1205 // register events | |
1206 $elem.bind("mousemove.digilib", zoomMove); | |
1207 $elem.bind("mouseup.digilib", zoomEnd); | |
1208 return false; | |
1209 }; | |
661 | 1210 |
647 | 1211 // mouseup handler: end moving |
1212 var zoomEnd = function (evt) { | |
1213 pt2 = geom.position(evt); | |
1214 // assume a click and continue if the area is too small | |
1215 var clickRect = geom.rectangle(pt1, pt2); | |
703 | 1216 if (clickRect.getArea() <= 5) return false; |
647 | 1217 // hide zoom div |
1218 $zoomDiv.remove(); | |
1219 // unregister events | |
1220 $elem.unbind("mousemove.digilib", zoomMove); | |
1221 $elem.unbind("mouseup.digilib", zoomEnd); | |
1222 // clip and transform | |
1223 clickRect.clipTo(picRect); | |
1224 var area = data.imgTrafo.invtransform(clickRect); | |
1225 data.zoomArea = area; | |
1226 // zoomed is always fit | |
1227 data.settings.ws = 1; | |
1228 redisplay(data); | |
1229 return false; | |
1230 }; | |
661 | 1231 |
647 | 1232 // mouse move handler |
1233 var zoomMove = function (evt) { | |
1234 pt2 = geom.position(evt); | |
1235 var rect = geom.rectangle(pt1, pt2); | |
1236 rect.clipTo(picRect); | |
1237 // update zoom div | |
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1238 rect.adjustDiv($zoomDiv); |
647 | 1239 return false; |
1240 }; | |
661 | 1241 |
647 | 1242 // bind start zoom handler |
1243 $scaler.one('mousedown.digilib', zoomStart); | |
1244 }; | |
640 | 1245 |
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1246 var birdZoom = function(data) { |
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1247 var $birdImg = data.$birdImg; |
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1248 var $birdZoom = data.$birdZoom; |
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1249 var startPos, newRect, birdImgRect, birdZoomRect; |
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1250 |
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1251 var birdZoomMove = function(evt) { |
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1252 // mousemove handler: drag |
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1253 var pos = geom.position(evt); |
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1254 var dx = pos.x - startPos.x; |
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1255 var dy = pos.y - startPos.y; |
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1256 // move birdZoom div, keeping size |
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1257 newRect = geom.rectangle( |
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1258 birdZoomRect.x + dx, |
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1259 birdZoomRect.y + dy, |
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1260 birdZoomRect.width, |
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1261 birdZoomRect.height); |
671
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1262 // stay within birdimage |
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1263 newRect.stayInside(birdImgRect); |
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1264 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
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1265 // $birdZoom.show(); |
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1266 return false; |
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1267 }; |
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1268 |
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1269 var birdZoomEndDrag = function(evt) { |
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1270 // mouseup handler: reload page |
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1271 var settings = data.settings; |
673 | 1272 $(document).unbind("mousemove.digilib", birdZoomMove); |
1273 $(document).unbind("mouseup.digilib", birdZoomEndDrag); | |
1274 $birdZoom.unbind("mousemove.digilib", birdZoomMove); | |
1275 $birdZoom.unbind("mouseup.digilib", birdZoomEndDrag); | |
671
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1276 if (newRect == null) { // no movement happened |
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1277 startPos = birdZoomRect.getCenter(); |
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1278 birdZoomMove(evt); // set center to click position |
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1279 } |
671
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1280 if (data.zoomArea) { |
672 | 1281 // should always be true |
1282 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
1283 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
1284 data.zoomArea.x = x; | |
1285 data.zoomArea.y = y; | |
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1286 } |
671
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1287 settings.ws = 1; // zoomed is always fit |
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1288 redisplay(data); |
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1289 return false; |
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1290 }; |
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1291 |
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1292 var birdZoomStartDrag = function(evt) { |
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1293 // mousedown handler: start dragging bird zoom to a new position |
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1294 startPos = geom.position(evt); |
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1295 birdImgRect = geom.rectangle($birdImg); |
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1296 birdZoomRect = geom.rectangle($birdZoom); |
673 | 1297 $(document).bind("mousemove.digilib", birdZoomMove); |
1298 $(document).bind("mouseup.digilib", birdZoomEndDrag); | |
1299 $birdZoom.bind("mousemove.digilib", birdZoomMove); | |
1300 $birdZoom.bind("mouseup.digilib", birdZoomEndDrag); | |
671
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1301 return false; |
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1302 }; |
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1303 |
674 | 1304 $birdImg.bind("mousedown.digilib", birdZoomStartDrag); |
1305 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag); | |
671
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1306 }; |
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1307 |
698 | 1308 var setupZoomDrag = function(data) { |
1309 // setup handlers for dragging the zoomed image | |
1310 var pt1, pt2; | |
1311 var dx = 0; | |
1312 var dy = 0; | |
1313 var $elem = data.$elem; | |
1314 var $scaler = data.$scaler; | |
1315 var $img = data.$img; | |
703 | 1316 |
698 | 1317 var dragStart = function (evt) { |
1318 // drag the image and load a new detail on mouse up | |
1319 // useless if not zoomed | |
1320 if (isFullArea(data.zoomArea)) return false; | |
1321 pt1 = geom.position(evt); | |
1322 $imgRect = geom.rectangle($img); | |
708 | 1323 // keep scaler div size while $img is hidden (for embedded mode) |
1324 $imgRect.adjustDiv($scaler); | |
698 | 1325 // hide the scaler image, show it as background of div instead |
708 | 1326 $scaler.css({ |
698 | 1327 'background-image' : 'url(' + $img.attr('src') + ')', |
1328 'background-repeat' : 'no-repeat', | |
699 | 1329 'background-position' : 'top left', |
698 | 1330 'cursor' : 'move' |
1331 }); | |
1332 $img.hide(); | |
1333 $(document).bind("mousemove.digilib", dragMove); | |
1334 $(document).bind("mouseup.digilib", dragEnd); | |
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1335 return false; |
698 | 1336 }; |
703 | 1337 |
698 | 1338 var dragMove = function (evt) { |
708 | 1339 // mousemove handler: drag zoomed image |
698 | 1340 var pos = geom.position(evt); |
1341 dx = pos.x - pt1.x; | |
1342 dy = pos.y - pt1.y; | |
1343 // move the background image to the new position | |
708 | 1344 $scaler.css({ |
698 | 1345 'background-position' : dx + "px " + dy + "px" |
1346 }); | |
1347 return false; | |
1348 }; | |
703 | 1349 |
698 | 1350 var dragEnd = function (evt) { |
708 | 1351 // mouseup handler: reload zoomed image in new position |
1352 $scaler.css({ | |
698 | 1353 'cursor' : 'default' |
1354 }); | |
1355 $(document).unbind("mousemove.digilib", dragMove); | |
1356 $(document).unbind("mouseup.digilib", dragEnd); | |
1357 // calculate relative offset | |
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1358 if (dx === 0 && dy === 0) return false; // no movement |
698 | 1359 // reload with scaler image showing the new ausschnitt |
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1360 // digilib.moveBy(x, y); |
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1361 var pos = geom.position(-dx, -dy); |
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1362 var newPos = data.imgTrafo.invtransform(pos); |
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1363 var newArea = data.zoomArea.setPt1(newPos); |
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1364 data.zoomArea = MAX_ZOOMAREA.fit(newArea); |
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1365 redisplay(data); |
698 | 1366 return false; |
1367 }; | |
1368 | |
1369 $scaler.bind("mousedown.digilib", dragStart); | |
1370 }; | |
1371 | |
696 | 1372 // get image quality as a number (0..2) |
1373 var getQuality = function (data) { | |
1374 var flags = data.scalerFlags; | |
1375 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
1376 return parseInt(q[1], 10); | |
699 | 1377 }; |
696 | 1378 |
1379 // set image quality as a number (0..2) | |
1380 var setQuality = function (data, qual) { | |
1381 var flags = data.scalerFlags; | |
1382 // clear flags | |
1383 for (var i = 0; i < 3; ++i) { | |
1384 delete flags['q'+i]; | |
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1385 } |
696 | 1386 flags['q'+qual] = 'q'+qual; |
699 | 1387 }; |
703 | 1388 |
643 | 1389 // sets a key to a value (relative values with +/- if relative=true) |
1390 var setNumValue = function(settings, key, value) { | |
709 | 1391 if (value == null) return null; |
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1392 if (isNumber(value)) { |
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1393 settings[key] = value; |
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1394 return value; |
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1395 } |
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1396 var sign = value[0]; |
643 | 1397 if (sign === '+' || sign === '-') { |
1398 if (settings[key] == null) { | |
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1399 // this isn't perfect but still... |
643 | 1400 settings[key] = 0; |
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1401 } |
643 | 1402 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
1403 } else { | |
1404 settings[key] = value; | |
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1405 } |
643 | 1406 return settings[key]; |
1407 }; | |
648 | 1408 |
1409 // auxiliary function (from old dllib.js) | |
652 | 1410 isFullArea = function(area) { |
1411 return (area.width === 1.0) && (area.height === 1.0); | |
648 | 1412 }; |
1413 | |
634 | 1414 // auxiliary function (from Douglas Crockford, A.10) |
1415 var isNumber = function isNumber(value) { | |
703 | 1416 return typeof value === 'number' && isFinite(value); |
634 | 1417 }; |
648 | 1418 |
624 | 1419 // auxiliary function to crop senseless precision |
1420 var cropFloat = function (x) { | |
630 | 1421 return parseInt(10000 * x, 10) / 10000; |
624 | 1422 }; |
648 | 1423 |
685 | 1424 // fallback for console.log calls |
1425 if (customConsole) { | |
1426 var logFunction = function(type) { | |
1427 return function(){ | |
1428 var $debug = $('#debug'); // debug div | |
1429 if (!$debug) return; | |
1430 var args = Array.prototype.slice.call(arguments); | |
1431 var argtext = args.join(' '); | |
1432 var $logDiv = $('<div/>'); | |
1433 $logDiv.addClass(type); | |
1434 $logDiv.text(argtext); | |
1435 $debug.append($logDiv); | |
1436 }; | |
1437 }; | |
1438 console.log = logFunction('_log'); | |
1439 console.debug = logFunction('_debug'); | |
1440 console.error = logFunction('_error'); | |
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1441 } |
685 | 1442 |
598 | 1443 // hook plugin into jquery |
644
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1444 $.fn.digilib = function(action) { |
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1445 if (actions[action]) { |
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1446 // call action on this with the remaining arguments (inserting data as first argument) |
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1447 var $elem = $(this); |
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1448 var data = $elem.data('digilib'); |
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1449 var args = Array.prototype.slice.call(arguments, 1); |
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1450 args.unshift(data); |
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1451 return actions[action].apply(this, args); |
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1452 } else if (typeof(action) === 'object' || !action) { |
627 | 1453 // call init on this |
644
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1454 return actions.init.apply(this, arguments); |
598 | 1455 } else { |
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1456 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
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1457 } |
598 | 1458 }; |
685 | 1459 |
597 | 1460 })(jQuery); |