Mercurial > hg > digilib-old
annotate client/digitallibrary/jquery/jquery.digilib.js @ 690:7c8d5bfc5243 jquery
more or less buttons buttons - with animation :-)
author | robcast |
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date | Wed, 26 Jan 2011 23:25:41 +0100 |
parents | 97c01b911754 |
children | fe2bb8f926be |
rev | line source |
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604 | 1 /* |
2 * digilib jQuery plugin | |
3 * | |
4 */ | |
655 | 5 |
636 | 6 // fallback for console.log calls |
7 if (typeof(console) === 'undefined') { | |
8 var console = { | |
686 | 9 log : function(){ |
10 var $debug = $('#debug'); | |
11 if (!$debug) return; | |
12 var args = Array.prototype.slice.call(arguments); | |
13 var argstr = args.join(' '); | |
14 $debug.append('<div class="_log">' + argstr + '</div>'); | |
15 }, | |
16 debug : function(){ | |
17 // debug for MSIE etc | |
18 var $debug = $('#debug'); | |
19 if (!$debug) return; | |
20 var args = Array.prototype.slice.call(arguments); | |
21 var argstr = args.join(' '); | |
22 $debug.append('<div class="_debug">' + argstr + '</div>'); | |
23 }, | |
24 error : function(){ | |
25 var $debug = $('#debug'); | |
26 if (!$debug) return; | |
27 var args = Array.prototype.slice.call(arguments); | |
28 var argstr = args.join(' '); | |
29 $debug.append('<div class="_error">' + argstr + '</div>'); | |
30 } | |
636 | 31 }; |
32 } | |
604 | 33 |
34 (function($) { | |
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35 var buttons = { |
610 | 36 reference : { |
37 onclick : "javascript:getRefWin()", | |
38 tooltip : "get a reference URL", | |
39 img : "reference.png" | |
40 }, | |
41 zoomin : { | |
643 | 42 onclick : ["zoomBy", 1.4], |
610 | 43 tooltip : "zoom in", |
44 img : "zoom-in.png" | |
45 }, | |
46 zoomout : { | |
643 | 47 onclick : ["zoomBy", 0.7], |
610 | 48 tooltip : "zoom out", |
49 img : "zoom-out.png" | |
50 }, | |
51 zoomarea : { | |
654 | 52 onclick : "zoomArea", |
610 | 53 tooltip : "zoom area", |
54 img : "zoom-area.png" | |
55 }, | |
56 zoomfull : { | |
650 | 57 onclick : "zoomFull", |
610 | 58 tooltip : "view the whole image", |
59 img : "zoom-full.png" | |
60 }, | |
61 pagewidth : { | |
650 | 62 onclick : ["zoomFull", "width"], |
610 | 63 tooltip : "page width", |
64 img : "pagewidth.png" | |
65 }, | |
66 back : { | |
623 | 67 onclick : ["gotoPage", "-1"], |
610 | 68 tooltip : "goto previous image", |
69 img : "back.png" | |
70 }, | |
71 fwd : { | |
623 | 72 onclick : ["gotoPage", "+1"], |
610 | 73 tooltip : "goto next image", |
74 img : "fwd.png" | |
75 }, | |
76 page : { | |
77 onclick : "javascript:gotoPageWin()", | |
78 tooltip : "specify image", | |
79 img : "page.png" | |
80 }, | |
81 bird : { | |
635 | 82 onclick : "showBirdDiv", |
610 | 83 tooltip : "show bird's eye view", |
84 img : "birds-eye.png" | |
85 }, | |
86 help : { | |
635 | 87 onclick : "showAboutDiv", |
610 | 88 tooltip : "about Digilib", |
89 img : "help.png" | |
90 }, | |
91 reset : { | |
92 onclick : "javascript:resetImage()", | |
93 tooltip : "reset image", | |
94 img : "reset.png" | |
95 }, | |
96 mark : { | |
647 | 97 onclick : "setMark", |
610 | 98 tooltip : "set a mark", |
99 img : "mark.png" | |
100 }, | |
101 delmark : { | |
650 | 102 onclick : "removeMark", |
610 | 103 tooltip : "delete the last mark", |
104 img : "delmark.png" | |
105 }, | |
106 hmir : { | |
661 | 107 onclick : ["mirror", "h"], |
610 | 108 tooltip : "mirror horizontally", |
109 img : "mirror-horizontal.png" | |
110 }, | |
111 vmir : { | |
661 | 112 onclick : ["mirror", "v"], |
610 | 113 tooltip : "mirror vertically", |
114 img : "mirror-vertical.png" | |
115 }, | |
116 rot : { | |
663 | 117 onclick : "rotate", |
610 | 118 tooltip : "rotate image", |
119 img : "rotate.png" | |
120 }, | |
121 brgt : { | |
663 | 122 onclick : "brightness", |
610 | 123 tooltip : "set brightness", |
124 img : "brightness.png" | |
125 }, | |
126 cont : { | |
663 | 127 onclick : "contrast", |
610 | 128 tooltip : "set contrast", |
129 img : "contrast.png" | |
130 }, | |
131 rgb : { | |
132 onclick : "javascript:setParamWin('rgb', '...')", | |
133 tooltip : "set rgb values", | |
134 img : "rgb.png" | |
135 }, | |
136 quality : { | |
137 onclick : "javascript:setQualityWin('Quality (0..2)')", | |
138 tooltip : "set image quality", | |
139 img : "quality.png" | |
140 }, | |
141 size : { | |
142 onclick : "javascript:toggleSizeMenu()", | |
143 tooltip : "set page size", | |
144 img : "size.png" | |
145 }, | |
146 calibrationx : { | |
147 onclick : "javascript:calibrate('x')", | |
148 tooltip : "calibrate screen x-ratio", | |
149 img : "calibration-x.png" | |
150 }, | |
151 scale : { | |
152 onclick : "javascript:toggleScaleMenu()", | |
153 tooltip : "change image scale", | |
154 img : "original-size.png" | |
155 }, | |
690 | 156 moreoptions : { |
157 onclick : ["morebuttons", "+1"], | |
158 tooltip : "more options", | |
159 img : "options.png" | |
160 }, | |
161 lessoptions : { | |
162 onclick : ["morebuttons", "-1"], | |
163 tooltip : "less options", | |
610 | 164 img : "options.png" |
165 }, | |
166 SEP : { | |
167 img : "sep.png" | |
168 } | |
169 }; | |
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170 |
605 | 171 var defaults = { |
616 | 172 // version of this script |
635 | 173 'version' : 'jquery.digilib.js 0.9', |
616 | 174 // logo url |
175 'logoUrl' : '../img/digilib-logo-text1.png', | |
635 | 176 // homepage url (behind logo) |
177 'homeUrl' : 'http://digilib.berlios.de', | |
610 | 178 // base URL to Scaler servlet |
652 | 179 'scalerBaseUrl' : null, |
610 | 180 // list of Scaler parameters |
627 | 181 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
182 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
183 // Scaler parameter defaults | |
643 | 184 'pn' : 1, |
627 | 185 'ww' : 1.0, |
186 'wh' : 1.0, | |
187 'wx' : 0.0, | |
188 'wy' : 0.0, | |
189 'ws' : 1.0, | |
643 | 190 'mo' : '', |
191 'rot' : 0, | |
192 'cont' : 0, | |
193 'brgt' : 0, | |
194 'rgbm' : '0/0/0', | |
195 'rgba' : '0/0/0', | |
196 'ddpi' : null, | |
197 'ddpix' : null, | |
198 'ddpiy' : null, | |
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199 // list of digilib parameters |
650 | 200 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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201 // digilib parameter defaults |
643 | 202 'mk' : '', |
650 | 203 'clop' : '', |
643 | 204 // mode of operation: |
205 // fullscreen = take parameters from page URL, keep state in page URL | |
206 // embedded = take parameters from Javascript options, keep state inside object | |
610 | 207 'interactionMode' : 'fullscreen', |
651
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208 // buttons |
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209 'buttons' : buttons, |
668 | 210 // defaults for digilib buttons |
665 | 211 'buttonSettings' : { |
212 'fullscreen' : { | |
668 | 213 // path to button images (must end with a slash) |
665 | 214 'imagePath' : 'img/fullscreen/', |
690 | 215 //'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","mark","delmark","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","calibrationx","scale","bird","help","options"], |
216 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","moreoptions"], | |
217 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","lessoptions"], | |
682 | 218 'buttonSets' : ['standardSet', 'specialSet'] |
665 | 219 }, |
220 'embedded' : { | |
221 'imagePath' : 'img/embedded/16/', | |
222 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","scale","bird","help","options"], | |
223 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","options"], | |
682 | 224 'buttonSets' : ['standardSet', 'specialSet'] |
665 | 225 } |
226 }, | |
652 | 227 // button groups |
616 | 228 // is birdView shown? |
229 'isBirdDivVisible' : false, | |
668 | 230 // dimensions of bird's eye div |
674 | 231 'birdDivWidth' : 200, |
232 'birdDivHeight' : 200, | |
668 | 233 // style of the zoom area indicator in the bird's eye div |
659 | 234 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
668 | 235 // style of zoom area "rubber band" |
236 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
616 | 237 // is the "about" window shown? |
238 'isAboutDivVisible' : false | |
239 | |
610 | 240 }; |
655 | 241 |
608 | 242 // affine geometry classes |
243 var geom = dlGeometry(); | |
655 | 244 |
643 | 245 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
655 | 246 |
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247 var actions = { |
668 | 248 // init: digilib initialization |
249 init : function(options) { | |
250 // settings for this digilib instance are merged from defaults and options | |
251 var settings = $.extend({}, defaults, options); | |
252 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
253 var queryParams = {}; | |
254 if (isFullscreen) { | |
255 queryParams = parseQueryParams(); | |
256 // check scalerBaseUrl | |
257 if (settings.scalerBaseUrl == null) { | |
258 // try the host this came from | |
259 var h = window.location.host; | |
260 if (window.location.host) { | |
261 var url = window.location.href; | |
262 // assume the page lives in [webapp]/jquery/ | |
263 var pos = url.indexOf('jquery/'); | |
264 if (pos > 0) { | |
265 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
652 | 266 } |
267 } | |
636 | 268 } |
668 | 269 } |
270 return this.each(function() { | |
271 var $elem = $(this); | |
272 var data = $elem.data('digilib'); | |
273 var elemSettings; | |
274 // if the plugin hasn't been initialized yet | |
275 if (!data) { | |
276 // merge query parameters | |
277 if (isFullscreen) { | |
278 elemSettings = $.extend({}, settings, queryParams); | |
279 } else { | |
280 elemSettings = $.extend({}, settings, parseImgParams($elem)); | |
604 | 281 } |
668 | 282 // store $(this) element in the settings |
283 data = { | |
284 $elem : $elem, | |
285 settings : elemSettings, | |
286 queryParams : queryParams | |
287 }; | |
288 // store in data element | |
289 $elem.data('digilib', data); | |
290 } | |
291 unpackParams(data); | |
682 | 292 // create HTML structure for scaler |
668 | 293 setupScalerDiv(data); |
682 | 294 // HTML for buttons (default is first button set) |
295 setupButtons(data, 0); | |
668 | 296 // bird's eye view creation |
297 if (elemSettings.isBirdDivVisible) { | |
638 | 298 setupBirdDiv(data); |
299 } | |
668 | 300 // about window creation - TODO: could be deferred? restrict to only one item? |
301 setupAboutDiv(data); | |
302 }); | |
303 }, | |
304 | |
305 // destroy: clean up digilib | |
306 destroy : function(data) { | |
307 return this.each(function(){ | |
308 var $elem = $(this); | |
309 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
310 data.digilib.remove(); | |
311 $elem.removeData('digilib'); | |
312 }); | |
313 }, | |
314 | |
315 // show or hide the 'about' window | |
316 showAboutDiv : function(data, show) { | |
317 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
318 }, | |
655 | 319 |
668 | 320 // event handler: toggles the visibility of the bird's eye window |
321 showBirdDiv : function (data, show) { | |
322 if (data.$birdDiv == null) { | |
323 // no bird div -> create | |
324 setupBirdDiv(data); | |
325 } | |
326 // TODO: keep bird view visible after reload (parameter, cookie?) | |
327 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
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328 data.$birdImg.triggerHandler('load'); |
668 | 329 }, |
330 | |
331 // goto given page nr (+/-: relative) | |
332 gotoPage : function (data, pageNr) { | |
333 var settings = data.settings; | |
334 var oldpn = settings.pn; | |
335 var pn = setNumValue(settings, "pn", pageNr); | |
336 if (pn == null) return false; // nothing happened | |
337 if (pn < 1) { | |
338 alert("no such page (page number too low)"); | |
339 settings.pn = oldpn; | |
340 return false; | |
341 } | |
342 if (settings.pt) { | |
343 if (pn > settings.pt) { | |
344 alert("no such page (page number too high)"); | |
623 | 345 settings.pn = oldpn; |
346 return false; | |
634 | 347 } |
668 | 348 } |
349 // reset mk and others(?) | |
350 data.marks = []; | |
351 data.zoomArea = MAX_ZOOMAREA; | |
352 // then reload | |
353 redisplay(data); | |
354 }, | |
654 | 355 |
668 | 356 // zoom by a given factor |
357 zoomBy : function (data, factor) { | |
358 zoomBy(data, factor); | |
359 }, | |
647 | 360 |
668 | 361 // zoom interactively |
362 zoomArea : function (data) { | |
363 zoomArea(data); | |
364 }, | |
650 | 365 |
668 | 366 // zoom out to full page |
367 zoomFull : function (data, mode) { | |
368 data.zoomArea = MAX_ZOOMAREA; | |
369 if (mode === 'width') { | |
370 data.dlOpts.fitwidth = 1; | |
371 delete data.dlOpts.fitheight; | |
372 } else if (mode === 'height') { | |
373 data.dlOpts.fitheight = 1; | |
374 delete data.dlOpts.fitwidth; | |
375 } else { | |
376 delete data.dlOpts.fitwidth; | |
377 delete data.dlOpts.fitheight; | |
378 } | |
379 redisplay(data); | |
380 }, | |
381 | |
382 // set a mark by clicking (or giving a position) | |
383 setMark : function (data, mpos) { | |
384 if (mpos == null) { | |
385 // interactive | |
386 setMark(data); | |
387 } else { | |
388 // use position | |
389 data.marks.push(pos); | |
663 | 390 redisplay(data); |
604 | 391 } |
668 | 392 }, |
393 | |
394 // remove the last mark | |
395 removeMark : function (data) { | |
396 data.marks.pop(); | |
397 redisplay(data); | |
398 }, | |
399 | |
400 // mirror the image | |
401 mirror : function (data, mode) { | |
402 var flags = data.scalerFlags; | |
403 if (mode === 'h') { | |
404 if (flags.hmir) { | |
405 delete flags.hmir; | |
406 } else { | |
407 flags.hmir = 1; | |
408 } | |
409 } else { | |
410 if (flags.vmir) { | |
411 delete flags.vmir; | |
412 } else { | |
413 flags.vmir = 1; | |
414 } | |
415 } | |
416 redisplay(data); | |
417 }, | |
650 | 418 |
668 | 419 // rotate the image |
420 rotate : function (data, angle) { | |
421 var rot = data.settings.rot; | |
422 if (angle == null) { | |
423 angle = window.prompt("Rotation angle:", rot); | |
424 } | |
425 data.settings.rot = angle; | |
426 redisplay(data); | |
427 }, | |
428 | |
429 // change brightness | |
430 brightness : function (data, factor) { | |
431 var brgt = data.settings.brgt; | |
432 if (factor == null) { | |
433 factor = window.prompt("Brightness (-255..255)", brgt); | |
434 } | |
435 data.settings.brgt = factor; | |
436 redisplay(data); | |
437 }, | |
438 | |
439 // change contrast | |
440 contrast : function (data, factor) { | |
441 var cont = data.settings.cont; | |
442 if (factor == null) { | |
443 factor = window.prompt("Contrast (-8, 8)", cont); | |
444 } | |
445 data.settings.cont = factor; | |
446 redisplay(data); | |
690 | 447 }, |
448 | |
449 // display more (or less) button sets | |
450 morebuttons : function (data, more) { | |
451 if (more === '-1') { | |
452 // remove set | |
453 var setIdx = data.visibleButtonSets - 1; | |
454 var $lastSet = data.$buttonSets[setIdx]; | |
455 if ($lastSet == null) return; | |
456 var btnWidth = $lastSet.width(); | |
457 // hide last set | |
458 $lastSet.hide(); | |
459 // take remaining sets and move right | |
460 var $otherSets = data.$elem.find('div.buttons:visible'); | |
461 $otherSets.animate({left : '+='+btnWidth+'px'}); | |
462 data.visibleButtonSets -= 1; | |
463 } else { | |
464 // add set | |
465 var $oldSets = data.$elem.find('div.buttons:visible'); | |
466 var setIdx = data.visibleButtonSets; | |
467 var $newSet; | |
468 if (data.$buttonSets[setIdx]) { | |
469 // set exists | |
470 $newSet = data.$buttonSets[setIdx]; | |
471 } else { | |
472 $newSet = setupButtons(data, setIdx); | |
473 } | |
474 if ($newSet == null) return; | |
475 var btnWidth = $newSet.width(); | |
476 // move remaining sets left and show new set | |
477 $oldSets.animate({left : '-='+btnWidth+'px'}, | |
478 function () {$newSet.show();}); | |
479 data.visibleButtonSets += 1; | |
480 } | |
668 | 481 } |
605 | 482 }; |
604 | 483 |
608 | 484 // returns parameters from page url |
607 | 485 var parseQueryParams = function() { |
636 | 486 return parseQueryString(window.location.search.slice(1)); |
487 }; | |
655 | 488 |
636 | 489 // returns parameters from embedded img-element |
607 | 490 var parseImgParams = function($elem) { |
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491 var src = $elem.find('img').first().attr('src'); |
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492 if (!src) { |
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493 return null; |
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494 } |
607 | 495 var pos = src.indexOf('?'); |
496 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
497 var scalerUrl = src.substring(0, pos); | |
627 | 498 var params = parseQueryString(query); |
499 params.scalerBaseUrl = scalerUrl; | |
500 return params; | |
636 | 501 }; |
607 | 502 |
608 | 503 // parses query parameter string into parameter object |
607 | 504 var parseQueryString = function(query) { |
505 var pairs = query.split("&"); | |
627 | 506 var params = {}; |
636 | 507 //var keys = []; |
607 | 508 for (var i = 0; i < pairs.length; i++) { |
509 var pair = pairs[i].split("="); | |
510 if (pair.length === 2) { | |
627 | 511 params[pair[0]] = pair[1]; |
636 | 512 //keys.push(pair[0]); |
634 | 513 } |
636 | 514 } |
627 | 515 return params; |
636 | 516 }; |
668 | 517 |
643 | 518 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
519 var getParamString = function (settings, keys, defaults) { | |
615 | 520 var paramString = ''; |
650 | 521 var nx = false; |
615 | 522 for (i = 0; i < keys.length; ++i) { |
523 var key = keys[i]; | |
663 | 524 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 525 // first param gets no '&' |
650 | 526 if (nx) { |
527 paramString += '&'; | |
528 } else { | |
529 nx = true; | |
530 } | |
615 | 531 // add parm=val |
532 paramString += key + '=' + settings[key]; | |
643 | 533 } |
615 | 534 } |
535 return paramString; | |
631 | 536 }; |
537 | |
636 | 538 // returns URL and query string for Scaler |
539 var getScalerUrl = function (data) { | |
653 | 540 var settings = data.settings; |
652 | 541 if (settings.scalerBaseUrl == null) { |
542 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
543 } | |
665 | 544 packParams(data); |
636 | 545 var keys = settings.scalerParamNames; |
643 | 546 var queryString = getParamString(settings, keys, defaults); |
636 | 547 var url = settings.scalerBaseUrl + '?' + queryString; |
548 return url; | |
549 }; | |
550 | |
551 // returns URL and query string for current digilib | |
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552 var getDigilibUrl = function (data) { |
643 | 553 packParams(data); |
636 | 554 var settings = data.settings; |
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555 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
636 | 556 var url = window.location.toString(); |
557 var pos = url.indexOf('?'); | |
558 var baseUrl = url.substring(0, pos); | |
559 var newurl = baseUrl + '?' + queryString; | |
560 return newurl; | |
561 }; | |
562 | |
655 | 563 // processes some parameters into objects and stuff |
631 | 564 var unpackParams = function (data) { |
565 var settings = data.settings; | |
636 | 566 // zoom area |
631 | 567 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 568 data.zoomArea = zoomArea; |
636 | 569 // marks |
631 | 570 var marks = []; |
650 | 571 if (settings.mk) { |
572 var mk = settings.mk; | |
573 if (mk.indexOf(";") >= 0) { | |
574 var pa = mk.split(";"); // old format with ";" | |
575 } else { | |
576 var pa = mk.split(","); // new format | |
577 } | |
578 for (var i = 0; i < pa.length ; i++) { | |
579 var pos = pa[i].split("/"); | |
580 if (pos.length > 1) { | |
581 marks.push(geom.position(pos[0], pos[1])); | |
582 } | |
633 | 583 } |
631 | 584 } |
643 | 585 data.marks = marks; |
650 | 586 // mo (Scaler flags) |
587 var flags = {}; | |
588 if (settings.mo) { | |
589 var pa = settings.mo.split(","); | |
590 for (var i = 0; i < pa.length ; i++) { | |
591 flags[pa[i]] = pa[i]; | |
592 } | |
593 } | |
594 data.scalerFlags = flags; | |
595 // clop (digilib options) | |
596 var opts = {}; | |
597 if (settings.clop) { | |
598 var pa = settings.clop.split(","); | |
599 for (var i = 0; i < pa.length ; i++) { | |
600 opts[pa[i]] = pa[i]; | |
601 } | |
602 } | |
603 data.dlOpts = opts; | |
661 | 604 // birdview option |
605 if (opts.birdview) { | |
606 settings.isBirdDivVisible = 1; | |
607 } | |
655 | 608 }; |
609 | |
631 | 610 // put objects back into parameters |
611 var packParams = function (data) { | |
612 var settings = data.settings; | |
636 | 613 // zoom area |
643 | 614 if (data.zoomArea) { |
647 | 615 settings.wx = cropFloat(data.zoomArea.x); |
616 settings.wy = cropFloat(data.zoomArea.y); | |
617 settings.ww = cropFloat(data.zoomArea.width); | |
618 settings.wh = cropFloat(data.zoomArea.height); | |
631 | 619 } |
636 | 620 // marks |
643 | 621 if (data.marks) { |
650 | 622 settings.mk = ''; |
643 | 623 for (var i = 0; i < data.marks.length; i++) { |
650 | 624 if (i) { |
625 settings.mk += ','; | |
626 } | |
627 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
631 | 628 } |
650 | 629 } |
630 // Scaler flags | |
631 if (data.scalerFlags) { | |
632 var mo = ''; | |
633 for (var f in data.scalerFlags) { | |
634 if (mo) { | |
635 mo += ','; | |
636 } | |
637 mo += f; | |
638 } | |
639 settings.mo = mo; | |
640 } | |
661 | 641 // digilib option birdview |
642 if (settings.isBirdDivVisible) { | |
643 data.dlOpts.birdview = 1; | |
662 | 644 } else { |
645 delete data.dlOpts.birdview; | |
661 | 646 } |
650 | 647 // digilib options |
648 if (data.dlOpts) { | |
649 var clop = ''; | |
650 for (var o in data.dlOpts) { | |
651 if (clop) { | |
652 clop += ','; | |
653 } | |
654 clop += o; | |
655 } | |
656 settings.clop = clop; | |
631 | 657 } |
658 }; | |
655 | 659 |
622 | 660 // (re)load the img from a new scaler URL |
644
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661 var redisplay = function (data) { |
636 | 662 var settings = data.settings; |
663 if (settings.interactionMode === 'fullscreen') { | |
664 // update location.href (browser URL) in fullscreen mode | |
644
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665 var url = getDigilibUrl(data); |
636 | 666 var history = window.history; |
667 if (typeof(history.pushState) === 'function') { | |
668 console.debug("we could modify history, but we don't..."); | |
669 } | |
670 window.location = url; | |
671 } else { | |
672 // embedded mode -- just change img src | |
673 var url = getScalerUrl(data); | |
674 data.$img.attr('src', url); | |
677
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675 // and update bird's eye view |
678
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676 //if (settings.isBirdDivVisible) { |
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677 // renderBirdZoom(data); |
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678 //} |
677
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679 }; |
622 | 680 }; |
681 | |
662 | 682 // returns maximum size for scaler img in fullscreen mode |
683 var getFullscreenImgSize = function($elem) { | |
684 var $win = $(window); | |
685 var winH = $win.height(); | |
686 var winW = $win.width(); | |
687 // TODO: account for borders? | |
688 return geom.size(winW, winH); | |
689 }; | |
690 | |
608 | 691 // creates HTML structure for digilib in elem |
627 | 692 var setupScalerDiv = function (data) { |
693 var settings = data.settings; | |
647 | 694 var $elem = data.$elem; |
686 | 695 var $img, scalerUrl; |
696 // fullscreen | |
608 | 697 if (settings.interactionMode === 'fullscreen') { |
609 | 698 var imgSize = getFullscreenImgSize($elem); |
650 | 699 // fitwidth/height omits destination height/width |
700 if (data.dlOpts['fitheight'] == null) { | |
701 settings.dw = imgSize.width; | |
686 | 702 }; |
650 | 703 if (data.dlOpts['fitwidth'] == null) { |
704 settings.dh = imgSize.height; | |
686 | 705 }; |
613
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706 $img = $('<img/>'); |
686 | 707 scalerUrl = getScalerUrl(data); |
708 // embedded mode -- try to keep img tag | |
609 | 709 } else { |
623 | 710 $img = $elem.find('img'); |
613
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711 if ($img.length > 0) { |
686 | 712 console.debug("img detach:", $img); |
713 scalerUrl = $img.attr('src'); | |
613
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714 $img.detach(); |
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715 } else { |
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716 $img = $('<img/>'); |
686 | 717 scalerUrl = getScalerUrl(data); |
718 }; | |
608 | 719 } |
613
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720 // create new html |
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721 $elem.empty(); // TODO: should we keep stuff for customization? |
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722 var $scaler = $('<div class="scaler"/>'); |
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723 $elem.append($scaler); |
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724 $scaler.append($img); |
622 | 725 $img.addClass('pic'); |
649 | 726 data.$scaler = $scaler; |
636 | 727 data.$img = $img; |
687 | 728 // setup image load handler before setting the src attribute (IE bug) |
729 $img.load(scalerImgLoadedHandler(data)); | |
730 $img.attr('src', scalerUrl); | |
608 | 731 }; |
615 | 732 |
610 | 733 // creates HTML structure for buttons in elem |
682 | 734 var setupButtons = function (data, buttonSetIdx) { |
647 | 735 var $elem = data.$elem; |
628
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736 var settings = data.settings; |
665 | 737 var mode = settings.interactionMode; |
672
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738 var buttonSettings = settings.buttonSettings[mode]; |
682 | 739 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
690 | 740 if (buttonGroup == null) { |
741 // no buttons here | |
742 return; | |
743 } | |
744 var $buttonsDiv = $('<div class="buttons"/>'); | |
682 | 745 var buttonNames = buttonSettings[buttonGroup]; |
746 for (var i = 0; i < buttonNames.length; i++) { | |
747 var buttonName = buttonNames[i]; | |
748 var buttonConfig = settings.buttons[buttonName]; | |
665 | 749 // construct the button html |
750 var $button = $('<div class="button"></div>'); | |
751 var $a = $('<a/>'); | |
752 var $img = $('<img class="button"/>'); | |
753 $buttonsDiv.append($button); | |
754 $button.append($a); | |
755 $a.append($img); | |
756 // add attributes and bindings | |
757 $button.attr('title', buttonConfig.tooltip); | |
682 | 758 $button.addClass('button-' + buttonName); |
665 | 759 // create handler for the buttons |
760 $a.bind('click.digilib', (function () { | |
761 // we create a new closure to capture the value of action | |
762 var action = buttonConfig.onclick; | |
763 if ($.isArray(action)) { | |
764 // the handler function calls digilib with action and parameters | |
765 return function (evt) { | |
766 console.debug('click action=', action, ' evt=', evt); | |
767 $elem.digilib.apply($elem, action); | |
768 return false; | |
769 }; | |
770 } else { | |
771 // the handler function calls digilib with action | |
772 return function (evt) { | |
773 console.debug('click action=', action, ' evt=', evt); | |
774 $elem.digilib(action); | |
775 return false; | |
776 }; | |
777 } | |
778 })()); | |
779 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
690 | 780 } |
662 | 781 // make buttons div scroll if too large for window |
782 if ($buttonsDiv.height() > $(window).height() - 10) { | |
783 $buttonsDiv.css('position', 'absolute'); | |
784 } | |
682 | 785 if (data.$buttonSets == null) { |
690 | 786 // show first button set |
787 $elem.append($buttonsDiv); | |
682 | 788 data.$buttonSets = [$buttonsDiv]; |
789 data.visibleButtonSets = 1; | |
790 } else { | |
690 | 791 // hide later button sets |
792 $buttonsDiv.hide(); | |
793 $elem.append($buttonsDiv); | |
682 | 794 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
795 } | |
612 | 796 return $buttonsDiv; |
610 | 797 }; |
615 | 798 |
799 // creates HTML structure for the bird's eye view in elem | |
638 | 800 var setupBirdDiv = function (data) { |
647 | 801 var $elem = data.$elem; |
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802 var settings = data.settings; |
615 | 803 // use only the relevant parameters |
804 var keys = ['fn','pn','dw','dh']; | |
674 | 805 var birdDivOptions = { |
806 dw : settings.birdDivWidth, | |
807 dh : settings.birdDivHeight | |
808 }; | |
809 var birdSettings = $.extend({}, settings, birdDivOptions); | |
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810 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
615 | 811 // the bird's eye div |
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812 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
615 | 813 // the detail indicator frame |
678
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814 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
615 | 815 // the small image |
816 var $birdImg = $('<img class="birdimg"/>'); | |
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817 $elem.append($birdDiv); |
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818 $birdDiv.append($birdZoom); |
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819 $birdDiv.append($birdImg); |
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820 $birdZoom.css(data.settings.birdIndicatorStyle); |
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821 data.$birdDiv = $birdDiv; |
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822 data.$birdZoom = $birdZoom; |
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823 data.$birdImg = $birdImg; |
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824 $birdImg.load(birdImgLoadedHandler(data)); |
615 | 825 $birdImg.attr('src', birdUrl); |
640
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826 if (data.settings.isBirdDivVisible) { |
687 | 827 $birdDiv.show(); |
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828 }; |
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829 birdZoom(data); |
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830 }; |
615 | 831 |
625 | 832 // creates HTML structure for the about view in elem |
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833 var setupAboutDiv = function (data) { |
647 | 834 var $elem = data.$elem; |
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835 var settings = data.settings; |
625 | 836 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
616 | 837 var $header = $('<p>Digilib Graphic Viewer</p>'); |
838 var $link = $('<a/>'); | |
839 var $logo = $('<img class="logo" title="digilib"/>'); | |
840 var $content = $('<p/>'); | |
841 $elem.append($aboutDiv); | |
842 $aboutDiv.append($header); | |
843 $aboutDiv.append($link); | |
844 $aboutDiv.append($content); | |
845 $link.append($logo); | |
846 $logo.attr('src', settings.logoUrl); | |
635 | 847 $link.attr('href', settings.homeUrl); |
616 | 848 $content.text('Version: ' + settings.version); |
635 | 849 // click hides |
649 | 850 $aboutDiv.bind('click.digilib', function () { |
646 | 851 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
649 | 852 return false; |
853 }); | |
635 | 854 data.$aboutDiv = $aboutDiv; |
634 | 855 }; |
856 | |
635 | 857 // shows some window e.g. 'about' (toggle visibility if show is null) |
858 var showDiv = function (isVisible, $div, show) { | |
645 | 859 if (show == null) { |
635 | 860 // toggle visibility |
861 isVisible = !isVisible; | |
862 } else { | |
863 // set visibility | |
864 isVisible = show; | |
865 } | |
866 if (isVisible) { | |
867 $div.fadeIn(); | |
868 } else { | |
869 $div.fadeOut(); | |
870 } | |
871 return isVisible; | |
634 | 872 }; |
616 | 873 |
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874 // create Transform from area and $img |
675 | 875 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
658
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876 var picrect = geom.rectangle($img); |
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877 var trafo = geom.transform(); |
675 | 878 // move zoom area offset to center |
658
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879 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
675 | 880 // scale zoom area size to [1,1] |
658
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881 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
675 | 882 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
883 if (rot || hmir || vmir) { | |
884 // move [0.5,0.5] to center | |
885 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
886 if (hmir) { | |
887 // mirror about center | |
888 trafo.concat(trafo.getMirror('y')); | |
889 } | |
890 if (vmir) { | |
891 // mirror about center | |
892 trafo.concat(trafo.getMirror('x')); | |
893 } | |
894 if (rot) { | |
895 // rotate around center | |
896 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
897 } | |
898 // move back | |
899 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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900 } |
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901 // scale to screen position and size |
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902 trafo.concat(trafo.getScale(picrect)); |
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903 trafo.concat(trafo.getTranslation(picrect)); |
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904 return trafo; |
655 | 905 }; |
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906 |
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907 // returns function for load event of scaler img |
636 | 908 var scalerImgLoadedHandler = function (data) { |
909 var $img = data.$img; | |
633 | 910 return function () { |
627 | 911 console.debug("img loaded! this=", this, " data=", data); |
912 // create Transform from current area and picsize | |
675 | 913 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
914 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
686 | 915 console.debug("imgTrafo=", data.imgTrafo); |
627 | 916 // display marks |
633 | 917 renderMarks(data); |
627 | 918 //digilib.showArrows(); // show arrow overlays for zoom navigation |
678
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919 var $birdImg = data.$birdImg; |
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920 if ($birdImg) { |
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921 $birdImg.triggerHandler('load'); |
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922 }; |
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923 }; |
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924 }; |
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925 |
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926 // returns function for load event of bird's eye view img |
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927 var birdImgLoadedHandler = function (data) { |
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928 var $img = data.$birdImg; |
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929 return function () { |
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930 console.debug("birdimg loaded! this=", this, " data=", data); |
658
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931 // create Transform from current area and picsize |
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932 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
668 | 933 // display red indicator around zoomarea |
678
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934 renderbirdZoom(data); |
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935 }; |
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936 }; |
633 | 937 |
938 // place marks on the image | |
939 var renderMarks = function (data) { | |
647 | 940 var $elem = data.$elem; |
643 | 941 var marks = data.marks; |
649 | 942 // TODO: clear marks first(?) |
633 | 943 for (var i = 0; i < marks.length; i++) { |
944 var mark = marks[i]; | |
643 | 945 if (data.zoomArea.containsPosition(mark)) { |
633 | 946 var mpos = data.imgTrafo.transform(mark); |
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947 console.debug("renderMarks: mpos=",mpos); |
633 | 948 // create mark |
949 var html = '<div class="mark">'+(i+1)+'</div>'; | |
950 var $mark = $(html); | |
951 $elem.append($mark); | |
654 | 952 $mark.offset({left : mpos.x, top : mpos.y}); |
633 | 953 } |
954 } | |
955 }; | |
655 | 956 |
677
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957 // show zoom area indicator on bird's eye view |
678
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958 var renderbirdZoom = function (data) { |
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959 var $birdZoom = data.$birdZoom; |
659 | 960 var zoomArea = data.zoomArea; |
961 var indRect = data.birdTrafo.transform(zoomArea); | |
670
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962 var coords = { |
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963 left : indRect.x-2, // acount for frame width |
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964 top : indRect.y-2, |
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965 width : indRect.width, |
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966 height: indRect.height |
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967 }; |
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968 var normalSize = isFullArea(zoomArea); |
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969 if (data.settings.interactionMode === 'fullscreen') { |
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970 // no animation for fullscreen |
678
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971 if (normalSize) return $birdZoom.hide(); |
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972 $birdZoom.width(coords.width); |
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973 $birdZoom.height(coords.height); |
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974 $birdZoom.offset(coords); |
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975 $birdZoom.show(); |
670
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976 return; |
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977 }; |
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978 // nice animation for embedded mode :-) |
678
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979 var makeCompleteFunction = function($birdZoom, normalSize) { |
670
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980 return function() { |
678
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981 if (normalSize) $birdZoom.hide(); |
672
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982 }; |
670
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983 }; |
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984 var opts = { |
678
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985 'complete' : makeCompleteFunction($birdZoom, normalSize) |
670
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986 }; |
678
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987 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
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988 $birdZoom.animate(coords, opts); |
664
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989 }; |
659 | 990 |
647 | 991 // zooms by the given factor |
643 | 992 var zoomBy = function(data, factor) { |
993 var area = data.zoomArea; | |
994 var newarea = area.copy(); | |
995 // scale | |
996 newarea.width /= factor; | |
997 newarea.height /= factor; | |
998 // and recenter | |
999 newarea.x -= 0.5 * (newarea.width - area.width); | |
1000 newarea.y -= 0.5 * (newarea.height - area.height); | |
1001 newarea = MAX_ZOOMAREA.fit(newarea); | |
1002 data.zoomArea = newarea; | |
644
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1003 redisplay(data); |
643 | 1004 }; |
1005 | |
647 | 1006 // add a mark where clicked |
1007 var setMark = function (data) { | |
649 | 1008 var $scaler = data.$scaler; |
647 | 1009 // start event capturing |
649 | 1010 $scaler.one('click.digilib', function (evt) { |
647 | 1011 // event handler adding a new mark |
672
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1012 var mpos = geom.position(evt); |
647 | 1013 var pos = data.imgTrafo.invtransform(mpos); |
1014 data.marks.push(pos); | |
1015 redisplay(data); | |
649 | 1016 return false; // do we even get here? |
647 | 1017 }); |
1018 }; | |
668 | 1019 |
654 | 1020 var zoomArea = function(data) { |
1021 $elem = data.$elem; | |
1022 $scaler = data.$scaler; | |
1023 var pt1, pt2; | |
1024 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
1025 $elem.append($zoomDiv); | |
668 | 1026 $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 1027 var picRect = geom.rectangle($scaler); |
1028 // FIX ME: is there a way to query the border width from CSS info? | |
1029 // rect.x -= 2; // account for overlay borders | |
1030 // rect.y -= 2; | |
1031 | |
1032 var zoomStart = function (evt) { | |
1033 pt1 = geom.position(evt); | |
1034 // setup and show zoom div | |
1035 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
1036 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
668 | 1037 $zoomDiv.width(0).height(0); |
654 | 1038 $zoomDiv.show(); |
1039 // register events | |
1040 $elem.bind("mousemove.digilib", zoomMove); | |
1041 $elem.bind("mouseup.digilib", zoomEnd); | |
1042 return false; | |
1043 }; | |
668 | 1044 |
654 | 1045 // mouseup handler: end moving |
1046 var zoomEnd = function (evt) { | |
1047 pt2 = geom.position(evt); | |
1048 // assume a click and continue if the area is too small | |
1049 var clickRect = geom.rectangle(pt1, pt2); | |
1050 if (clickRect.getArea() <= 5) { | |
1051 return false; | |
1052 } | |
1053 // hide zoom div | |
1054 $zoomDiv.remove(); | |
1055 // unregister events | |
1056 $elem.unbind("mousemove.digilib", zoomMove); | |
1057 $elem.unbind("mouseup.digilib", zoomEnd); | |
1058 // clip and transform | |
1059 clickRect.clipTo(picRect); | |
1060 var area = data.imgTrafo.invtransform(clickRect); | |
1061 data.zoomArea = area; | |
1062 // zoomed is always fit | |
1063 data.settings.ws = 1; | |
1064 redisplay(data); | |
1065 return false; | |
1066 }; | |
668 | 1067 |
654 | 1068 // mouse move handler |
1069 var zoomMove = function (evt) { | |
1070 pt2 = geom.position(evt); | |
1071 var rect = geom.rectangle(pt1, pt2); | |
1072 rect.clipTo(picRect); | |
1073 // update zoom div | |
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1074 rect.adjustDiv($zoomDiv); |
654 | 1075 return false; |
1076 }; | |
668 | 1077 |
654 | 1078 // bind start zoom handler |
1079 $scaler.one('mousedown.digilib', zoomStart); | |
1080 }; | |
647 | 1081 |
678
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1082 var birdZoom = function(data) { |
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1083 var $birdImg = data.$birdImg; |
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1084 var $birdZoom = data.$birdZoom; |
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1085 var startPos, newRect, birdImgRect, birdZoomRect; |
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1086 |
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1087 var birdZoomMove = function(evt) { |
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1088 // mousemove handler: drag |
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1089 var pos = geom.position(evt); |
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1090 var dx = pos.x - startPos.x; |
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1091 var dy = pos.y - startPos.y; |
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1092 // move birdZoom div, keeping size |
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1093 newRect = geom.rectangle( |
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1094 birdZoomRect.x + dx, |
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1095 birdZoomRect.y + dy, |
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1096 birdZoomRect.width, |
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1097 birdZoomRect.height |
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1098 ); |
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1099 // stay within birdimage |
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1100 newRect.stayInside(birdImgRect); |
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1101 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
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1102 // $birdZoom.show(); |
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1103 return false; |
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1104 }; |
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1105 |
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1106 var birdZoomEndDrag = function(evt) { |
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1107 // mouseup handler: reload page |
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1108 var settings = data.settings; |
680 | 1109 $(document).unbind("mousemove.digilib", birdZoomMove); |
1110 $(document).unbind("mouseup.digilib", birdZoomEndDrag); | |
1111 $birdZoom.unbind("mousemove.digilib", birdZoomMove); | |
1112 $birdZoom.unbind("mouseup.digilib", birdZoomEndDrag); | |
678
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1113 if (newRect == null) { // no movement happened |
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1114 startPos = birdZoomRect.getCenter(); |
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1115 birdZoomMove(evt); // set center to click position |
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1116 }; |
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1117 if (data.zoomArea) { |
679 | 1118 // should always be true |
1119 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
1120 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
1121 data.zoomArea.x = x; | |
1122 data.zoomArea.y = y; | |
678
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1123 }; |
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1124 settings.ws = 1; // zoomed is always fit |
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1125 redisplay(data); |
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1126 return false; |
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1127 }; |
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1128 |
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1129 var birdZoomStartDrag = function(evt) { |
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1130 // mousedown handler: start dragging bird zoom to a new position |
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1131 startPos = geom.position(evt); |
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1132 birdImgRect = geom.rectangle($birdImg); |
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1133 birdZoomRect = geom.rectangle($birdZoom); |
680 | 1134 $(document).bind("mousemove.digilib", birdZoomMove); |
1135 $(document).bind("mouseup.digilib", birdZoomEndDrag); | |
1136 $birdZoom.bind("mousemove.digilib", birdZoomMove); | |
1137 $birdZoom.bind("mouseup.digilib", birdZoomEndDrag); | |
678
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1138 return false; |
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1139 }; |
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1140 |
681 | 1141 $birdImg.bind("mousedown.digilib", birdZoomStartDrag); |
1142 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag); | |
678
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1143 }; |
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1144 |
650 | 1145 // sets a key to a value (relative values with +/- if relative=true) |
1146 var setNumValue = function(settings, key, value) { | |
1147 if (isNumber(value)) return settings[key] = value; | |
1148 var sign = value.substring(0,1); | |
1149 if (sign === '+' || sign === '-') { | |
1150 if (settings[key] == null) { | |
651
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1151 // this isn't perfect but still... |
650 | 1152 settings[key] = 0; |
1153 } | |
1154 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
1155 } else { | |
1156 settings[key] = value; | |
1157 } | |
1158 return settings[key]; | |
1159 }; | |
655 | 1160 |
1161 // auxiliary function (from old dllib.js) | |
659 | 1162 isFullArea = function(area) { |
1163 return (area.width === 1.0) && (area.height === 1.0); | |
655 | 1164 }; |
1165 | |
641 | 1166 // auxiliary function (from Douglas Crockford, A.10) |
1167 var isNumber = function isNumber(value) { | |
1168 return typeof value === 'number' && isFinite(value); | |
1169 }; | |
655 | 1170 |
631 | 1171 // auxiliary function to crop senseless precision |
1172 var cropFloat = function (x) { | |
637 | 1173 return parseInt(10000 * x, 10) / 10000; |
631 | 1174 }; |
655 | 1175 |
605 | 1176 // hook plugin into jquery |
651
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1177 $.fn.digilib = function(action) { |
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1178 if (actions[action]) { |
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1179 // call action on this with the remaining arguments (inserting data as first argument) |
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1180 var $elem = $(this); |
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1181 var data = $elem.data('digilib'); |
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1182 var args = Array.prototype.slice.call(arguments, 1); |
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1183 args.unshift(data); |
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1184 return actions[action].apply(this, args); |
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1185 } else if (typeof(action) === 'object' || !action) { |
634 | 1186 // call init on this |
651
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1187 return actions.init.apply(this, arguments); |
605 | 1188 } else { |
651
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1189 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
605 | 1190 } |
1191 }; | |
604 | 1192 |
1193 })(jQuery); |