Mercurial > hg > digilib-old
annotate client/digitallibrary/jquery/jquery.digilib.js @ 702:20b77008045a jquery
first step for new fullscreen icons
author | hertzhaft |
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date | Fri, 28 Jan 2011 00:19:15 +0100 |
parents | a343240a6f7c |
children | 0d49c33646da |
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 = { | |
692 | 9 log : function(){}, |
10 debug : function(){}, | |
11 error : function(){} | |
12 }; | |
13 var customConsole = true; | |
14 }; | |
604 | 15 |
16 (function($) { | |
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17 var buttons = { |
610 | 18 reference : { |
689 | 19 onclick : "reference", |
610 | 20 tooltip : "get a reference URL", |
21 img : "reference.png" | |
22 }, | |
23 zoomin : { | |
643 | 24 onclick : ["zoomBy", 1.4], |
610 | 25 tooltip : "zoom in", |
26 img : "zoom-in.png" | |
27 }, | |
28 zoomout : { | |
643 | 29 onclick : ["zoomBy", 0.7], |
610 | 30 tooltip : "zoom out", |
31 img : "zoom-out.png" | |
32 }, | |
33 zoomarea : { | |
654 | 34 onclick : "zoomArea", |
610 | 35 tooltip : "zoom area", |
36 img : "zoom-area.png" | |
37 }, | |
38 zoomfull : { | |
650 | 39 onclick : "zoomFull", |
610 | 40 tooltip : "view the whole image", |
41 img : "zoom-full.png" | |
42 }, | |
43 pagewidth : { | |
650 | 44 onclick : ["zoomFull", "width"], |
610 | 45 tooltip : "page width", |
46 img : "pagewidth.png" | |
47 }, | |
48 back : { | |
623 | 49 onclick : ["gotoPage", "-1"], |
610 | 50 tooltip : "goto previous image", |
51 img : "back.png" | |
52 }, | |
53 fwd : { | |
623 | 54 onclick : ["gotoPage", "+1"], |
610 | 55 tooltip : "goto next image", |
56 img : "fwd.png" | |
57 }, | |
58 page : { | |
59 onclick : "javascript:gotoPageWin()", | |
60 tooltip : "specify image", | |
61 img : "page.png" | |
62 }, | |
63 bird : { | |
635 | 64 onclick : "showBirdDiv", |
610 | 65 tooltip : "show bird's eye view", |
66 img : "birds-eye.png" | |
67 }, | |
68 help : { | |
635 | 69 onclick : "showAboutDiv", |
610 | 70 tooltip : "about Digilib", |
71 img : "help.png" | |
72 }, | |
73 reset : { | |
688 | 74 onclick : "reset", |
610 | 75 tooltip : "reset image", |
76 img : "reset.png" | |
77 }, | |
78 mark : { | |
647 | 79 onclick : "setMark", |
610 | 80 tooltip : "set a mark", |
81 img : "mark.png" | |
82 }, | |
83 delmark : { | |
650 | 84 onclick : "removeMark", |
610 | 85 tooltip : "delete the last mark", |
86 img : "delmark.png" | |
87 }, | |
88 hmir : { | |
661 | 89 onclick : ["mirror", "h"], |
610 | 90 tooltip : "mirror horizontally", |
91 img : "mirror-horizontal.png" | |
92 }, | |
93 vmir : { | |
661 | 94 onclick : ["mirror", "v"], |
610 | 95 tooltip : "mirror vertically", |
96 img : "mirror-vertical.png" | |
97 }, | |
98 rot : { | |
663 | 99 onclick : "rotate", |
610 | 100 tooltip : "rotate image", |
101 img : "rotate.png" | |
102 }, | |
103 brgt : { | |
663 | 104 onclick : "brightness", |
610 | 105 tooltip : "set brightness", |
106 img : "brightness.png" | |
107 }, | |
108 cont : { | |
663 | 109 onclick : "contrast", |
610 | 110 tooltip : "set contrast", |
111 img : "contrast.png" | |
112 }, | |
113 rgb : { | |
114 onclick : "javascript:setParamWin('rgb', '...')", | |
115 tooltip : "set rgb values", | |
116 img : "rgb.png" | |
117 }, | |
118 quality : { | |
119 onclick : "javascript:setQualityWin('Quality (0..2)')", | |
120 tooltip : "set image quality", | |
121 img : "quality.png" | |
122 }, | |
123 size : { | |
124 onclick : "javascript:toggleSizeMenu()", | |
125 tooltip : "set page size", | |
126 img : "size.png" | |
127 }, | |
128 calibrationx : { | |
129 onclick : "javascript:calibrate('x')", | |
130 tooltip : "calibrate screen x-ratio", | |
131 img : "calibration-x.png" | |
132 }, | |
133 scale : { | |
134 onclick : "javascript:toggleScaleMenu()", | |
135 tooltip : "change image scale", | |
136 img : "original-size.png" | |
137 }, | |
699 | 138 toggleoptions : { |
139 onclick : "morebuttons", | |
140 tooltip : "more options", | |
141 img : "options.png" | |
142 }, | |
690 | 143 moreoptions : { |
144 onclick : ["morebuttons", "+1"], | |
145 tooltip : "more options", | |
146 img : "options.png" | |
147 }, | |
148 lessoptions : { | |
149 onclick : ["morebuttons", "-1"], | |
150 tooltip : "less options", | |
610 | 151 img : "options.png" |
152 }, | |
153 SEP : { | |
154 img : "sep.png" | |
155 } | |
156 }; | |
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157 |
605 | 158 var defaults = { |
616 | 159 // version of this script |
635 | 160 'version' : 'jquery.digilib.js 0.9', |
616 | 161 // logo url |
162 'logoUrl' : '../img/digilib-logo-text1.png', | |
635 | 163 // homepage url (behind logo) |
164 'homeUrl' : 'http://digilib.berlios.de', | |
610 | 165 // base URL to Scaler servlet |
652 | 166 'scalerBaseUrl' : null, |
610 | 167 // list of Scaler parameters |
627 | 168 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
169 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
170 // Scaler parameter defaults | |
643 | 171 'pn' : 1, |
627 | 172 'ww' : 1.0, |
173 'wh' : 1.0, | |
174 'wx' : 0.0, | |
175 'wy' : 0.0, | |
176 'ws' : 1.0, | |
643 | 177 'mo' : '', |
178 'rot' : 0, | |
179 'cont' : 0, | |
180 'brgt' : 0, | |
181 'rgbm' : '0/0/0', | |
182 'rgba' : '0/0/0', | |
183 'ddpi' : null, | |
184 'ddpix' : null, | |
185 'ddpiy' : null, | |
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186 // list of digilib parameters |
650 | 187 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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188 // digilib parameter defaults |
643 | 189 'mk' : '', |
650 | 190 'clop' : '', |
643 | 191 // mode of operation: |
192 // fullscreen = take parameters from page URL, keep state in page URL | |
193 // embedded = take parameters from Javascript options, keep state inside object | |
610 | 194 'interactionMode' : 'fullscreen', |
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195 // buttons |
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196 'buttons' : buttons, |
668 | 197 // defaults for digilib buttons |
665 | 198 'buttonSettings' : { |
199 'fullscreen' : { | |
668 | 200 // path to button images (must end with a slash) |
665 | 201 'imagePath' : 'img/fullscreen/', |
699 | 202 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","toggleoptions"], |
203 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","toggleoptions"], | |
682 | 204 'buttonSets' : ['standardSet', 'specialSet'] |
665 | 205 }, |
206 'embedded' : { | |
207 'imagePath' : 'img/embedded/16/', | |
699 | 208 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","back","fwd","page","bird","SEP","help","reset","toggleoptions"], |
209 'specialSet' : ["hmir","vmir","rot","brgt","cont","rgb","quality","size","SEP","toggleoptions"], | |
682 | 210 'buttonSets' : ['standardSet', 'specialSet'] |
665 | 211 } |
697 | 212 }, |
213 // number of visible button groups | |
214 'visibleButtonSets' : 1, | |
616 | 215 // is birdView shown? |
216 'isBirdDivVisible' : false, | |
668 | 217 // dimensions of bird's eye div |
674 | 218 'birdDivWidth' : 200, |
219 'birdDivHeight' : 200, | |
668 | 220 // style of the zoom area indicator in the bird's eye div |
659 | 221 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
668 | 222 // style of zoom area "rubber band" |
223 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
616 | 224 // is the "about" window shown? |
225 'isAboutDivVisible' : false | |
226 | |
610 | 227 }; |
655 | 228 |
608 | 229 // affine geometry classes |
230 var geom = dlGeometry(); | |
655 | 231 |
643 | 232 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
655 | 233 |
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234 var actions = { |
668 | 235 // init: digilib initialization |
236 init : function(options) { | |
237 // settings for this digilib instance are merged from defaults and options | |
238 var settings = $.extend({}, defaults, options); | |
239 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
240 var queryParams = {}; | |
241 if (isFullscreen) { | |
242 queryParams = parseQueryParams(); | |
243 // check scalerBaseUrl | |
244 if (settings.scalerBaseUrl == null) { | |
245 // try the host this came from | |
246 var h = window.location.host; | |
247 if (window.location.host) { | |
248 var url = window.location.href; | |
249 // assume the page lives in [webapp]/jquery/ | |
250 var pos = url.indexOf('jquery/'); | |
251 if (pos > 0) { | |
252 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
652 | 253 } |
254 } | |
636 | 255 } |
668 | 256 } |
257 return this.each(function() { | |
258 var $elem = $(this); | |
259 var data = $elem.data('digilib'); | |
688 | 260 var params, elemSettings; |
668 | 261 // if the plugin hasn't been initialized yet |
262 if (!data) { | |
263 // merge query parameters | |
264 if (isFullscreen) { | |
688 | 265 params = queryParams; |
668 | 266 } else { |
688 | 267 params = parseImgParams($elem); |
268 }; | |
668 | 269 // store $(this) element in the settings |
688 | 270 elemSettings = $.extend({}, settings, params); |
697 | 271 data = { |
668 | 272 $elem : $elem, |
273 settings : elemSettings, | |
688 | 274 queryParams : params |
668 | 275 }; |
276 // store in data element | |
277 $elem.data('digilib', data); | |
278 } | |
279 unpackParams(data); | |
682 | 280 // create HTML structure for scaler |
668 | 281 setupScalerDiv(data); |
697 | 282 // add buttons |
283 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { | |
284 showButtons(data, true, i); | |
285 } | |
668 | 286 // bird's eye view creation |
287 if (elemSettings.isBirdDivVisible) { | |
638 | 288 setupBirdDiv(data); |
289 } | |
668 | 290 // about window creation - TODO: could be deferred? restrict to only one item? |
291 setupAboutDiv(data); | |
292 }); | |
293 }, | |
294 | |
295 // destroy: clean up digilib | |
296 destroy : function(data) { | |
297 return this.each(function(){ | |
298 var $elem = $(this); | |
299 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
300 data.digilib.remove(); | |
301 $elem.removeData('digilib'); | |
302 }); | |
303 }, | |
304 | |
305 // show or hide the 'about' window | |
306 showAboutDiv : function(data, show) { | |
307 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
308 }, | |
655 | 309 |
668 | 310 // event handler: toggles the visibility of the bird's eye window |
311 showBirdDiv : function (data, show) { | |
312 if (data.$birdDiv == null) { | |
313 // no bird div -> create | |
314 setupBirdDiv(data); | |
315 } | |
316 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
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317 data.$birdImg.triggerHandler('load'); |
668 | 318 }, |
319 | |
320 // goto given page nr (+/-: relative) | |
321 gotoPage : function (data, pageNr) { | |
322 var settings = data.settings; | |
323 var oldpn = settings.pn; | |
324 var pn = setNumValue(settings, "pn", pageNr); | |
325 if (pn == null) return false; // nothing happened | |
326 if (pn < 1) { | |
327 alert("no such page (page number too low)"); | |
328 settings.pn = oldpn; | |
329 return false; | |
330 } | |
331 if (settings.pt) { | |
332 if (pn > settings.pt) { | |
333 alert("no such page (page number too high)"); | |
623 | 334 settings.pn = oldpn; |
335 return false; | |
634 | 336 } |
668 | 337 } |
338 // reset mk and others(?) | |
339 data.marks = []; | |
340 data.zoomArea = MAX_ZOOMAREA; | |
341 // then reload | |
342 redisplay(data); | |
343 }, | |
654 | 344 |
668 | 345 // zoom by a given factor |
346 zoomBy : function (data, factor) { | |
347 zoomBy(data, factor); | |
348 }, | |
647 | 349 |
668 | 350 // zoom interactively |
351 zoomArea : function (data) { | |
352 zoomArea(data); | |
353 }, | |
650 | 354 |
668 | 355 // zoom out to full page |
356 zoomFull : function (data, mode) { | |
357 data.zoomArea = MAX_ZOOMAREA; | |
358 if (mode === 'width') { | |
359 data.dlOpts.fitwidth = 1; | |
360 delete data.dlOpts.fitheight; | |
361 } else if (mode === 'height') { | |
362 data.dlOpts.fitheight = 1; | |
363 delete data.dlOpts.fitwidth; | |
364 } else { | |
365 delete data.dlOpts.fitwidth; | |
366 delete data.dlOpts.fitheight; | |
367 } | |
368 redisplay(data); | |
369 }, | |
370 | |
371 // set a mark by clicking (or giving a position) | |
372 setMark : function (data, mpos) { | |
373 if (mpos == null) { | |
374 // interactive | |
375 setMark(data); | |
376 } else { | |
377 // use position | |
378 data.marks.push(pos); | |
663 | 379 redisplay(data); |
604 | 380 } |
668 | 381 }, |
382 | |
383 // remove the last mark | |
384 removeMark : function (data) { | |
385 data.marks.pop(); | |
386 redisplay(data); | |
387 }, | |
388 | |
389 // mirror the image | |
390 mirror : function (data, mode) { | |
391 var flags = data.scalerFlags; | |
392 if (mode === 'h') { | |
393 if (flags.hmir) { | |
394 delete flags.hmir; | |
395 } else { | |
396 flags.hmir = 1; | |
397 } | |
398 } else { | |
399 if (flags.vmir) { | |
400 delete flags.vmir; | |
401 } else { | |
402 flags.vmir = 1; | |
403 } | |
404 } | |
405 redisplay(data); | |
406 }, | |
650 | 407 |
668 | 408 // rotate the image |
409 rotate : function (data, angle) { | |
410 var rot = data.settings.rot; | |
411 if (angle == null) { | |
412 angle = window.prompt("Rotation angle:", rot); | |
413 } | |
414 data.settings.rot = angle; | |
415 redisplay(data); | |
416 }, | |
417 | |
418 // change brightness | |
419 brightness : function (data, factor) { | |
420 var brgt = data.settings.brgt; | |
421 if (factor == null) { | |
422 factor = window.prompt("Brightness (-255..255)", brgt); | |
423 } | |
424 data.settings.brgt = factor; | |
425 redisplay(data); | |
426 }, | |
427 | |
428 // change contrast | |
429 contrast : function (data, factor) { | |
430 var cont = data.settings.cont; | |
431 if (factor == null) { | |
432 factor = window.prompt("Contrast (-8, 8)", cont); | |
433 } | |
434 data.settings.cont = factor; | |
435 redisplay(data); | |
688 | 436 }, |
690 | 437 |
438 // display more (or less) button sets | |
439 morebuttons : function (data, more) { | |
696 | 440 var settings = data.settings; |
699 | 441 if (more == null) { |
442 // toggle more or less | |
443 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; | |
444 if (settings.visibleButtonSets >= maxbtns) { | |
445 more = '-1'; | |
446 } else { | |
447 more = '+1'; | |
448 } | |
449 } | |
690 | 450 if (more === '-1') { |
451 // remove set | |
697 | 452 var setIdx = settings.visibleButtonSets - 1; |
453 if (showButtons(data, false, setIdx, true)) { | |
454 settings.visibleButtonSets--; | |
455 } | |
690 | 456 } else { |
457 // add set | |
697 | 458 var setIdx = settings.visibleButtonSets; |
459 if (showButtons(data, true, setIdx, true)) { | |
460 settings.visibleButtonSets++; | |
690 | 461 } |
462 } | |
691 | 463 }, |
688 | 464 |
465 reset : function (data) { | |
466 var settings = data.settings; | |
467 var paramNames = settings.digilibParamNames; | |
468 var params = data.queryParams; | |
469 resetData(data); | |
470 // delete all digilib parameters | |
471 for (var i = 0; i < paramNames.length; i++) { | |
472 var paramName = paramNames[i]; | |
473 delete settings[paramName]; | |
474 }; | |
475 // fullscreen: restore only fn/pn parameters | |
476 if (settings.interactionMode === 'fullscreen') { | |
477 settings['fn'] = params.fn; | |
478 settings['pn'] = params.pn; | |
479 // embedded: restore original parameters | |
480 } else { | |
481 $.extend(settings, params); | |
482 }; | |
483 redisplay(data); | |
689 | 484 }, |
485 | |
486 reference : function (data) { | |
487 var settings = data.settings; | |
488 var url; | |
489 if (settings.interactionMode === 'fullscreen') { | |
490 url = getDigilibUrl(data); | |
491 } else { | |
492 url = getScalerUrl(data); | |
493 }; | |
494 window.prompt("URL reference to the current view", url); | |
668 | 495 } |
605 | 496 }; |
604 | 497 |
608 | 498 // returns parameters from page url |
607 | 499 var parseQueryParams = function() { |
636 | 500 return parseQueryString(window.location.search.slice(1)); |
501 }; | |
655 | 502 |
636 | 503 // returns parameters from embedded img-element |
607 | 504 var parseImgParams = function($elem) { |
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505 var src = $elem.find('img').first().attr('src'); |
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506 if (!src) { |
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507 return null; |
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508 } |
607 | 509 var pos = src.indexOf('?'); |
510 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
511 var scalerUrl = src.substring(0, pos); | |
627 | 512 var params = parseQueryString(query); |
513 params.scalerBaseUrl = scalerUrl; | |
514 return params; | |
636 | 515 }; |
607 | 516 |
608 | 517 // parses query parameter string into parameter object |
607 | 518 var parseQueryString = function(query) { |
701 | 519 var params = {}; |
520 if (query == null) return params; | |
607 | 521 var pairs = query.split("&"); |
636 | 522 //var keys = []; |
607 | 523 for (var i = 0; i < pairs.length; i++) { |
524 var pair = pairs[i].split("="); | |
525 if (pair.length === 2) { | |
627 | 526 params[pair[0]] = pair[1]; |
636 | 527 //keys.push(pair[0]); |
634 | 528 } |
636 | 529 } |
627 | 530 return params; |
636 | 531 }; |
668 | 532 |
643 | 533 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
534 var getParamString = function (settings, keys, defaults) { | |
615 | 535 var paramString = ''; |
650 | 536 var nx = false; |
615 | 537 for (i = 0; i < keys.length; ++i) { |
538 var key = keys[i]; | |
663 | 539 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 540 // first param gets no '&' |
650 | 541 if (nx) { |
542 paramString += '&'; | |
543 } else { | |
544 nx = true; | |
545 } | |
615 | 546 // add parm=val |
547 paramString += key + '=' + settings[key]; | |
643 | 548 } |
615 | 549 } |
550 return paramString; | |
631 | 551 }; |
552 | |
636 | 553 // returns URL and query string for Scaler |
554 var getScalerUrl = function (data) { | |
653 | 555 var settings = data.settings; |
652 | 556 if (settings.scalerBaseUrl == null) { |
557 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
558 } | |
665 | 559 packParams(data); |
636 | 560 var keys = settings.scalerParamNames; |
643 | 561 var queryString = getParamString(settings, keys, defaults); |
636 | 562 var url = settings.scalerBaseUrl + '?' + queryString; |
563 return url; | |
564 }; | |
565 | |
566 // returns URL and query string for current digilib | |
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567 var getDigilibUrl = function (data) { |
643 | 568 packParams(data); |
636 | 569 var settings = data.settings; |
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570 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
636 | 571 var url = window.location.toString(); |
572 var pos = url.indexOf('?'); | |
573 var baseUrl = url.substring(0, pos); | |
574 var newurl = baseUrl + '?' + queryString; | |
575 return newurl; | |
576 }; | |
577 | |
655 | 578 // processes some parameters into objects and stuff |
631 | 579 var unpackParams = function (data) { |
580 var settings = data.settings; | |
636 | 581 // zoom area |
631 | 582 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 583 data.zoomArea = zoomArea; |
636 | 584 // marks |
631 | 585 var marks = []; |
650 | 586 if (settings.mk) { |
587 var mk = settings.mk; | |
588 if (mk.indexOf(";") >= 0) { | |
589 var pa = mk.split(";"); // old format with ";" | |
590 } else { | |
591 var pa = mk.split(","); // new format | |
592 } | |
593 for (var i = 0; i < pa.length ; i++) { | |
594 var pos = pa[i].split("/"); | |
595 if (pos.length > 1) { | |
596 marks.push(geom.position(pos[0], pos[1])); | |
597 } | |
633 | 598 } |
631 | 599 } |
643 | 600 data.marks = marks; |
650 | 601 // mo (Scaler flags) |
602 var flags = {}; | |
603 if (settings.mo) { | |
604 var pa = settings.mo.split(","); | |
605 for (var i = 0; i < pa.length ; i++) { | |
606 flags[pa[i]] = pa[i]; | |
607 } | |
608 } | |
609 data.scalerFlags = flags; | |
610 // clop (digilib options) | |
611 var opts = {}; | |
701 | 612 if (jQuery.cookie) { |
613 // read from cookie | |
614 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
615 var cp = jQuery.cookie(ck); | |
616 console.debug("get cookie=", ck, " value=", cp); | |
617 // in query string format | |
618 opts = parseQueryString(cp); | |
619 } | |
620 /* read from parameter clop | |
621 * if (settings.clop) { | |
650 | 622 var pa = settings.clop.split(","); |
623 for (var i = 0; i < pa.length ; i++) { | |
624 opts[pa[i]] = pa[i]; | |
625 } | |
701 | 626 } */ |
650 | 627 data.dlOpts = opts; |
661 | 628 // birdview option |
701 | 629 if (opts.birdview != null) { |
630 settings.isBirdDivVisible = opts.birdview; | |
631 } | |
632 // visible button sets | |
633 if (opts.buttons != null) { | |
634 settings.visibleButtonSets = opts.buttons; | |
635 } | |
655 | 636 }; |
637 | |
631 | 638 // put objects back into parameters |
639 var packParams = function (data) { | |
640 var settings = data.settings; | |
636 | 641 // zoom area |
643 | 642 if (data.zoomArea) { |
647 | 643 settings.wx = cropFloat(data.zoomArea.x); |
644 settings.wy = cropFloat(data.zoomArea.y); | |
645 settings.ww = cropFloat(data.zoomArea.width); | |
646 settings.wh = cropFloat(data.zoomArea.height); | |
631 | 647 } |
636 | 648 // marks |
643 | 649 if (data.marks) { |
650 | 650 settings.mk = ''; |
643 | 651 for (var i = 0; i < data.marks.length; i++) { |
650 | 652 if (i) { |
653 settings.mk += ','; | |
654 } | |
655 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
631 | 656 } |
650 | 657 } |
658 // Scaler flags | |
659 if (data.scalerFlags) { | |
660 var mo = ''; | |
661 for (var f in data.scalerFlags) { | |
662 if (mo) { | |
663 mo += ','; | |
664 } | |
665 mo += f; | |
666 } | |
667 settings.mo = mo; | |
668 } | |
701 | 669 // save digilib settings in options |
670 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
671 data.dlOpts.buttons = settings.visibleButtonSets; | |
688 | 672 |
701 | 673 // save digilib options in cookie |
650 | 674 if (data.dlOpts) { |
675 var clop = ''; | |
676 for (var o in data.dlOpts) { | |
677 if (clop) { | |
701 | 678 clop += '&'; |
679 } | |
680 clop += o + '=' + data.dlOpts[o]; | |
681 } | |
682 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
683 console.debug("set cookie=", ck, " value=", clop); | |
684 jQuery.cookie(ck, clop); | |
685 }; | |
686 /* store in parameter clop | |
687 * if (data.dlOpts) { | |
688 var clop = ''; | |
689 for (var o in data.dlOpts) { | |
690 if (clop) { | |
650 | 691 clop += ','; |
692 } | |
693 clop += o; | |
694 } | |
695 settings.clop = clop; | |
701 | 696 } */ |
631 | 697 }; |
655 | 698 |
688 | 699 // clear digilib data for reset |
700 var resetData = function (data) { | |
701 if (data.zoomArea) delete data.zoomArea; | |
702 if (data.marks) delete data.marks; | |
703 if (data.scalerFlags) delete data.scalerFlags; | |
704 if (data.dlOpts) delete data.dlOpts; | |
705 }; | |
706 | |
622 | 707 // (re)load the img from a new scaler URL |
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708 var redisplay = function (data) { |
636 | 709 var settings = data.settings; |
710 if (settings.interactionMode === 'fullscreen') { | |
711 // update location.href (browser URL) in fullscreen mode | |
644
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712 var url = getDigilibUrl(data); |
636 | 713 var history = window.history; |
714 if (typeof(history.pushState) === 'function') { | |
715 console.debug("we could modify history, but we don't..."); | |
716 } | |
717 window.location = url; | |
718 } else { | |
719 // embedded mode -- just change img src | |
720 var url = getScalerUrl(data); | |
721 data.$img.attr('src', url); | |
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722 // and update bird's eye view |
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723 //if (settings.isBirdDivVisible) { |
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724 // renderBirdZoom(data); |
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725 //} |
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726 }; |
622 | 727 }; |
728 | |
662 | 729 // returns maximum size for scaler img in fullscreen mode |
730 var getFullscreenImgSize = function($elem) { | |
731 var $win = $(window); | |
732 var winH = $win.height(); | |
733 var winW = $win.width(); | |
734 // TODO: account for borders? | |
735 return geom.size(winW, winH); | |
736 }; | |
737 | |
608 | 738 // creates HTML structure for digilib in elem |
627 | 739 var setupScalerDiv = function (data) { |
740 var settings = data.settings; | |
647 | 741 var $elem = data.$elem; |
686 | 742 var $img, scalerUrl; |
743 // fullscreen | |
608 | 744 if (settings.interactionMode === 'fullscreen') { |
609 | 745 var imgSize = getFullscreenImgSize($elem); |
650 | 746 // fitwidth/height omits destination height/width |
747 if (data.dlOpts['fitheight'] == null) { | |
748 settings.dw = imgSize.width; | |
686 | 749 }; |
650 | 750 if (data.dlOpts['fitwidth'] == null) { |
751 settings.dh = imgSize.height; | |
686 | 752 }; |
613
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753 $img = $('<img/>'); |
686 | 754 scalerUrl = getScalerUrl(data); |
755 // embedded mode -- try to keep img tag | |
609 | 756 } else { |
623 | 757 $img = $elem.find('img'); |
613
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758 if ($img.length > 0) { |
686 | 759 console.debug("img detach:", $img); |
760 scalerUrl = $img.attr('src'); | |
613
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761 $img.detach(); |
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762 } else { |
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763 $img = $('<img/>'); |
686 | 764 scalerUrl = getScalerUrl(data); |
765 }; | |
608 | 766 } |
613
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767 // create new html |
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768 $elem.empty(); // TODO: should we keep stuff for customization? |
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769 var $scaler = $('<div class="scaler"/>'); |
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770 $elem.append($scaler); |
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771 $scaler.append($img); |
622 | 772 $img.addClass('pic'); |
649 | 773 data.$scaler = $scaler; |
636 | 774 data.$img = $img; |
687 | 775 // setup image load handler before setting the src attribute (IE bug) |
776 $img.load(scalerImgLoadedHandler(data)); | |
777 $img.attr('src', scalerUrl); | |
608 | 778 }; |
615 | 779 |
610 | 780 // creates HTML structure for buttons in elem |
697 | 781 var createButtons = function (data, buttonSetIdx) { |
647 | 782 var $elem = data.$elem; |
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783 var settings = data.settings; |
665 | 784 var mode = settings.interactionMode; |
672
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785 var buttonSettings = settings.buttonSettings[mode]; |
682 | 786 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
690 | 787 if (buttonGroup == null) { |
788 // no buttons here | |
789 return; | |
790 } | |
791 var $buttonsDiv = $('<div class="buttons"/>'); | |
682 | 792 var buttonNames = buttonSettings[buttonGroup]; |
793 for (var i = 0; i < buttonNames.length; i++) { | |
794 var buttonName = buttonNames[i]; | |
795 var buttonConfig = settings.buttons[buttonName]; | |
665 | 796 // construct the button html |
797 var $button = $('<div class="button"></div>'); | |
798 var $a = $('<a/>'); | |
799 var $img = $('<img class="button"/>'); | |
800 $buttonsDiv.append($button); | |
801 $button.append($a); | |
802 $a.append($img); | |
803 // add attributes and bindings | |
804 $button.attr('title', buttonConfig.tooltip); | |
682 | 805 $button.addClass('button-' + buttonName); |
665 | 806 // create handler for the buttons |
807 $a.bind('click.digilib', (function () { | |
808 // we create a new closure to capture the value of action | |
809 var action = buttonConfig.onclick; | |
810 if ($.isArray(action)) { | |
811 // the handler function calls digilib with action and parameters | |
812 return function (evt) { | |
813 console.debug('click action=', action, ' evt=', evt); | |
814 $elem.digilib.apply($elem, action); | |
815 return false; | |
816 }; | |
817 } else { | |
818 // the handler function calls digilib with action | |
819 return function (evt) { | |
820 console.debug('click action=', action, ' evt=', evt); | |
821 $elem.digilib(action); | |
822 return false; | |
823 }; | |
824 } | |
825 })()); | |
826 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
690 | 827 } |
662 | 828 // make buttons div scroll if too large for window |
829 if ($buttonsDiv.height() > $(window).height() - 10) { | |
830 $buttonsDiv.css('position', 'absolute'); | |
831 } | |
697 | 832 // buttons hidden at first |
833 $buttonsDiv.hide(); | |
834 $elem.append($buttonsDiv); | |
682 | 835 if (data.$buttonSets == null) { |
697 | 836 // first button set |
682 | 837 data.$buttonSets = [$buttonsDiv]; |
838 } else { | |
690 | 839 $elem.append($buttonsDiv); |
682 | 840 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
841 } | |
612 | 842 return $buttonsDiv; |
610 | 843 }; |
615 | 844 |
845 // creates HTML structure for the bird's eye view in elem | |
638 | 846 var setupBirdDiv = function (data) { |
647 | 847 var $elem = data.$elem; |
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848 var settings = data.settings; |
615 | 849 // use only the relevant parameters |
850 var keys = ['fn','pn','dw','dh']; | |
674 | 851 var birdDivOptions = { |
852 dw : settings.birdDivWidth, | |
853 dh : settings.birdDivHeight | |
854 }; | |
855 var birdSettings = $.extend({}, settings, birdDivOptions); | |
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856 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
615 | 857 // the bird's eye div |
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858 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
615 | 859 // the detail indicator frame |
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860 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
615 | 861 // the small image |
862 var $birdImg = $('<img class="birdimg"/>'); | |
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863 $elem.append($birdDiv); |
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864 $birdDiv.append($birdZoom); |
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865 $birdDiv.append($birdImg); |
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866 $birdZoom.css(data.settings.birdIndicatorStyle); |
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867 data.$birdDiv = $birdDiv; |
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868 data.$birdZoom = $birdZoom; |
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869 data.$birdImg = $birdImg; |
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870 $birdImg.load(birdImgLoadedHandler(data)); |
615 | 871 $birdImg.attr('src', birdUrl); |
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872 if (data.settings.isBirdDivVisible) { |
687 | 873 $birdDiv.show(); |
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874 }; |
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875 birdZoom(data); |
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876 }; |
615 | 877 |
625 | 878 // creates HTML structure for the about view in elem |
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879 var setupAboutDiv = function (data) { |
647 | 880 var $elem = data.$elem; |
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881 var settings = data.settings; |
625 | 882 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
616 | 883 var $header = $('<p>Digilib Graphic Viewer</p>'); |
884 var $link = $('<a/>'); | |
885 var $logo = $('<img class="logo" title="digilib"/>'); | |
886 var $content = $('<p/>'); | |
887 $elem.append($aboutDiv); | |
888 $aboutDiv.append($header); | |
889 $aboutDiv.append($link); | |
890 $aboutDiv.append($content); | |
891 $link.append($logo); | |
892 $logo.attr('src', settings.logoUrl); | |
635 | 893 $link.attr('href', settings.homeUrl); |
616 | 894 $content.text('Version: ' + settings.version); |
635 | 895 // click hides |
649 | 896 $aboutDiv.bind('click.digilib', function () { |
646 | 897 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
649 | 898 return false; |
899 }); | |
635 | 900 data.$aboutDiv = $aboutDiv; |
634 | 901 }; |
902 | |
635 | 903 // shows some window e.g. 'about' (toggle visibility if show is null) |
904 var showDiv = function (isVisible, $div, show) { | |
645 | 905 if (show == null) { |
635 | 906 // toggle visibility |
907 isVisible = !isVisible; | |
908 } else { | |
909 // set visibility | |
910 isVisible = show; | |
911 } | |
912 if (isVisible) { | |
913 $div.fadeIn(); | |
914 } else { | |
915 $div.fadeOut(); | |
916 } | |
917 return isVisible; | |
634 | 918 }; |
616 | 919 |
697 | 920 // display more (or less) button sets |
921 var showButtons = function (data, more, setIdx, animated) { | |
922 if (more) { | |
923 // add set | |
924 var $otherSets = data.$elem.find('div.buttons:visible'); | |
925 var $set; | |
926 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
927 // set exists | |
928 $set = data.$buttonSets[setIdx]; | |
929 } else { | |
930 $set = createButtons(data, setIdx); | |
931 } | |
932 if ($set == null) return false; | |
933 var btnWidth = $set.width(); | |
934 // move remaining sets left and show new set | |
935 if (animated) { | |
936 $otherSets.animate({left : '-='+btnWidth+'px'}, 'fast', | |
937 function () {$set.show();}); | |
938 } else { | |
701 | 939 var oldpos = $otherSets.position(); |
940 if (oldpos) { | |
941 $otherSets.css({left : oldpos.left-btnWidth+'px'}); | |
942 } | |
697 | 943 $set.show(); |
944 } | |
945 } else { | |
946 // remove set | |
947 var $set = data.$buttonSets[setIdx]; | |
948 if ($set == null) return false; | |
949 var btnWidth = $set.width(); | |
950 // hide last set | |
951 $set.hide(); | |
952 // take remaining sets and move right | |
953 var $otherSets = data.$elem.find('div.buttons:visible'); | |
954 if (animated) { | |
955 $otherSets.animate({left : '+='+btnWidth+'px'}, 'fast'); | |
956 } else { | |
957 $otherSets.css({left : '+='+btnWidth+'px'}); | |
958 } | |
959 } | |
960 return true; | |
961 }; | |
962 | |
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963 // create Transform from area and $img |
675 | 964 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
658
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965 var picrect = geom.rectangle($img); |
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966 var trafo = geom.transform(); |
675 | 967 // move zoom area offset to center |
658
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968 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
675 | 969 // scale zoom area size to [1,1] |
658
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970 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
675 | 971 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
972 if (rot || hmir || vmir) { | |
973 // move [0.5,0.5] to center | |
974 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
975 if (hmir) { | |
976 // mirror about center | |
977 trafo.concat(trafo.getMirror('y')); | |
978 } | |
979 if (vmir) { | |
980 // mirror about center | |
981 trafo.concat(trafo.getMirror('x')); | |
982 } | |
983 if (rot) { | |
984 // rotate around center | |
985 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
986 } | |
987 // move back | |
988 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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989 } |
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990 // scale to screen position and size |
658
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991 trafo.concat(trafo.getScale(picrect)); |
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992 trafo.concat(trafo.getTranslation(picrect)); |
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993 return trafo; |
655 | 994 }; |
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995 |
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996 // returns function for load event of scaler img |
636 | 997 var scalerImgLoadedHandler = function (data) { |
998 var $img = data.$img; | |
633 | 999 return function () { |
627 | 1000 console.debug("img loaded! this=", this, " data=", data); |
1001 // create Transform from current area and picsize | |
675 | 1002 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
1003 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
686 | 1004 console.debug("imgTrafo=", data.imgTrafo); |
627 | 1005 // display marks |
633 | 1006 renderMarks(data); |
695
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1007 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation |
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1008 // TODO: the birdview should adapt to mirror or rotation? |
678
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1009 var $birdImg = data.$birdImg; |
670
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1010 if ($birdImg) { |
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1011 $birdImg.triggerHandler('load'); |
678
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1012 }; |
658
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1013 }; |
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1014 }; |
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1015 |
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1016 // returns function for load event of bird's eye view img |
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1017 var birdImgLoadedHandler = function (data) { |
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1018 var $img = data.$birdImg; |
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1019 return function () { |
677
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1020 console.debug("birdimg loaded! this=", this, " data=", data); |
658
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1021 // create Transform from current area and picsize |
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1022 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
668 | 1023 // display red indicator around zoomarea |
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1024 renderbirdZoom(data); |
613
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1025 }; |
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1026 }; |
633 | 1027 |
1028 // place marks on the image | |
1029 var renderMarks = function (data) { | |
647 | 1030 var $elem = data.$elem; |
643 | 1031 var marks = data.marks; |
649 | 1032 // TODO: clear marks first(?) |
633 | 1033 for (var i = 0; i < marks.length; i++) { |
1034 var mark = marks[i]; | |
643 | 1035 if (data.zoomArea.containsPosition(mark)) { |
633 | 1036 var mpos = data.imgTrafo.transform(mark); |
664
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1037 console.debug("renderMarks: mpos=",mpos); |
633 | 1038 // create mark |
1039 var html = '<div class="mark">'+(i+1)+'</div>'; | |
1040 var $mark = $(html); | |
1041 $elem.append($mark); | |
654 | 1042 $mark.offset({left : mpos.x, top : mpos.y}); |
633 | 1043 } |
1044 } | |
1045 }; | |
655 | 1046 |
677
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1047 // show zoom area indicator on bird's eye view |
678
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1048 var renderbirdZoom = function (data) { |
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1049 var $birdZoom = data.$birdZoom; |
659 | 1050 var zoomArea = data.zoomArea; |
1051 var indRect = data.birdTrafo.transform(zoomArea); | |
670
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1052 var coords = { |
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1053 left : indRect.x-2, // acount for frame width |
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1054 top : indRect.y-2, |
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1055 width : indRect.width, |
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1056 height: indRect.height |
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1057 }; |
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1058 var normalSize = isFullArea(zoomArea); |
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1059 if (data.settings.interactionMode === 'fullscreen') { |
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1060 // no animation for fullscreen |
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1061 if (normalSize) return $birdZoom.hide(); |
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1062 $birdZoom.width(coords.width); |
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1063 $birdZoom.height(coords.height); |
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1064 $birdZoom.offset(coords); |
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1065 $birdZoom.show(); |
670
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1066 return; |
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1067 }; |
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1068 // nice animation for embedded mode :-) |
678
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1069 var makeCompleteFunction = function($birdZoom, normalSize) { |
670
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1070 return function() { |
678
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1071 if (normalSize) $birdZoom.hide(); |
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1072 }; |
670
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1073 }; |
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1074 var opts = { |
678
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1075 'complete' : makeCompleteFunction($birdZoom, normalSize) |
670
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1076 }; |
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1077 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
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1078 $birdZoom.animate(coords, opts); |
664
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1079 }; |
659 | 1080 |
647 | 1081 // zooms by the given factor |
643 | 1082 var zoomBy = function(data, factor) { |
1083 var area = data.zoomArea; | |
1084 var newarea = area.copy(); | |
1085 // scale | |
1086 newarea.width /= factor; | |
1087 newarea.height /= factor; | |
1088 // and recenter | |
1089 newarea.x -= 0.5 * (newarea.width - area.width); | |
1090 newarea.y -= 0.5 * (newarea.height - area.height); | |
1091 newarea = MAX_ZOOMAREA.fit(newarea); | |
1092 data.zoomArea = newarea; | |
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1093 redisplay(data); |
643 | 1094 }; |
1095 | |
647 | 1096 // add a mark where clicked |
1097 var setMark = function (data) { | |
649 | 1098 var $scaler = data.$scaler; |
647 | 1099 // start event capturing |
649 | 1100 $scaler.one('click.digilib', function (evt) { |
647 | 1101 // event handler adding a new mark |
672
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1102 var mpos = geom.position(evt); |
647 | 1103 var pos = data.imgTrafo.invtransform(mpos); |
1104 data.marks.push(pos); | |
1105 redisplay(data); | |
649 | 1106 return false; // do we even get here? |
647 | 1107 }); |
1108 }; | |
668 | 1109 |
654 | 1110 var zoomArea = function(data) { |
1111 $elem = data.$elem; | |
1112 $scaler = data.$scaler; | |
1113 var pt1, pt2; | |
1114 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
1115 $elem.append($zoomDiv); | |
668 | 1116 $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 1117 var picRect = geom.rectangle($scaler); |
1118 // FIX ME: is there a way to query the border width from CSS info? | |
1119 // rect.x -= 2; // account for overlay borders | |
1120 // rect.y -= 2; | |
1121 | |
1122 var zoomStart = function (evt) { | |
1123 pt1 = geom.position(evt); | |
1124 // setup and show zoom div | |
1125 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
1126 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
668 | 1127 $zoomDiv.width(0).height(0); |
654 | 1128 $zoomDiv.show(); |
1129 // register events | |
1130 $elem.bind("mousemove.digilib", zoomMove); | |
1131 $elem.bind("mouseup.digilib", zoomEnd); | |
1132 return false; | |
1133 }; | |
668 | 1134 |
654 | 1135 // mouseup handler: end moving |
1136 var zoomEnd = function (evt) { | |
1137 pt2 = geom.position(evt); | |
1138 // assume a click and continue if the area is too small | |
1139 var clickRect = geom.rectangle(pt1, pt2); | |
1140 if (clickRect.getArea() <= 5) { | |
1141 return false; | |
1142 } | |
1143 // hide zoom div | |
1144 $zoomDiv.remove(); | |
1145 // unregister events | |
1146 $elem.unbind("mousemove.digilib", zoomMove); | |
1147 $elem.unbind("mouseup.digilib", zoomEnd); | |
1148 // clip and transform | |
1149 clickRect.clipTo(picRect); | |
1150 var area = data.imgTrafo.invtransform(clickRect); | |
1151 data.zoomArea = area; | |
1152 // zoomed is always fit | |
1153 data.settings.ws = 1; | |
1154 redisplay(data); | |
1155 return false; | |
1156 }; | |
668 | 1157 |
654 | 1158 // mouse move handler |
1159 var zoomMove = function (evt) { | |
1160 pt2 = geom.position(evt); | |
1161 var rect = geom.rectangle(pt1, pt2); | |
1162 rect.clipTo(picRect); | |
1163 // update zoom div | |
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1164 rect.adjustDiv($zoomDiv); |
654 | 1165 return false; |
1166 }; | |
668 | 1167 |
654 | 1168 // bind start zoom handler |
1169 $scaler.one('mousedown.digilib', zoomStart); | |
1170 }; | |
647 | 1171 |
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1172 var birdZoom = function(data) { |
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1173 var $birdImg = data.$birdImg; |
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1174 var $birdZoom = data.$birdZoom; |
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1175 var startPos, newRect, birdImgRect, birdZoomRect; |
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1176 |
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1177 var birdZoomMove = function(evt) { |
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1178 // mousemove handler: drag |
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1179 var pos = geom.position(evt); |
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1180 var dx = pos.x - startPos.x; |
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1181 var dy = pos.y - startPos.y; |
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1182 // move birdZoom div, keeping size |
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1183 newRect = geom.rectangle( |
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1184 birdZoomRect.x + dx, |
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1185 birdZoomRect.y + dy, |
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1186 birdZoomRect.width, |
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1187 birdZoomRect.height |
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1188 ); |
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1189 // stay within birdimage |
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1190 newRect.stayInside(birdImgRect); |
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1191 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
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1192 // $birdZoom.show(); |
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1193 return false; |
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1194 }; |
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1195 |
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1196 var birdZoomEndDrag = function(evt) { |
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1197 // mouseup handler: reload page |
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1198 var settings = data.settings; |
680 | 1199 $(document).unbind("mousemove.digilib", birdZoomMove); |
1200 $(document).unbind("mouseup.digilib", birdZoomEndDrag); | |
1201 $birdZoom.unbind("mousemove.digilib", birdZoomMove); | |
1202 $birdZoom.unbind("mouseup.digilib", birdZoomEndDrag); | |
678
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1203 if (newRect == null) { // no movement happened |
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1204 startPos = birdZoomRect.getCenter(); |
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1205 birdZoomMove(evt); // set center to click position |
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1206 }; |
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1207 if (data.zoomArea) { |
679 | 1208 // should always be true |
1209 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
1210 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
1211 data.zoomArea.x = x; | |
1212 data.zoomArea.y = y; | |
678
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1213 }; |
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1214 settings.ws = 1; // zoomed is always fit |
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1215 redisplay(data); |
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1216 return false; |
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1217 }; |
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1218 |
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1219 var birdZoomStartDrag = function(evt) { |
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1220 // mousedown handler: start dragging bird zoom to a new position |
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1221 startPos = geom.position(evt); |
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1222 birdImgRect = geom.rectangle($birdImg); |
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1223 birdZoomRect = geom.rectangle($birdZoom); |
680 | 1224 $(document).bind("mousemove.digilib", birdZoomMove); |
1225 $(document).bind("mouseup.digilib", birdZoomEndDrag); | |
1226 $birdZoom.bind("mousemove.digilib", birdZoomMove); | |
1227 $birdZoom.bind("mouseup.digilib", birdZoomEndDrag); | |
678
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1228 return false; |
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1229 }; |
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1230 |
681 | 1231 $birdImg.bind("mousedown.digilib", birdZoomStartDrag); |
1232 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag); | |
678
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1233 }; |
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1234 |
650 | 1235 // sets a key to a value (relative values with +/- if relative=true) |
1236 var setNumValue = function(settings, key, value) { | |
1237 if (isNumber(value)) return settings[key] = value; | |
1238 var sign = value.substring(0,1); | |
1239 if (sign === '+' || sign === '-') { | |
1240 if (settings[key] == null) { | |
651
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1241 // this isn't perfect but still... |
650 | 1242 settings[key] = 0; |
1243 } | |
1244 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
1245 } else { | |
1246 settings[key] = value; | |
1247 } | |
1248 return settings[key]; | |
1249 }; | |
655 | 1250 |
1251 // auxiliary function (from old dllib.js) | |
659 | 1252 isFullArea = function(area) { |
1253 return (area.width === 1.0) && (area.height === 1.0); | |
655 | 1254 }; |
1255 | |
641 | 1256 // auxiliary function (from Douglas Crockford, A.10) |
1257 var isNumber = function isNumber(value) { | |
1258 return typeof value === 'number' && isFinite(value); | |
1259 }; | |
655 | 1260 |
631 | 1261 // auxiliary function to crop senseless precision |
1262 var cropFloat = function (x) { | |
637 | 1263 return parseInt(10000 * x, 10) / 10000; |
631 | 1264 }; |
655 | 1265 |
692 | 1266 // fallback for console.log calls |
1267 if (customConsole) { | |
1268 var logFunction = function(type) { | |
1269 return function(){ | |
1270 var $debug = $('#debug'); // debug div | |
1271 if (!$debug) return; | |
1272 var args = Array.prototype.slice.call(arguments); | |
1273 var argtext = args.join(' '); | |
1274 var $logDiv = $('<div/>'); | |
1275 $logDiv.addClass(type); | |
1276 $logDiv.text(argtext); | |
1277 $debug.append($logDiv); | |
1278 }; | |
1279 }; | |
1280 console.log = logFunction('_log'); | |
1281 console.debug = logFunction('_debug'); | |
1282 console.error = logFunction('_error'); | |
1283 }; | |
1284 | |
605 | 1285 // hook plugin into jquery |
651
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1286 $.fn.digilib = function(action) { |
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1287 if (actions[action]) { |
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1288 // call action on this with the remaining arguments (inserting data as first argument) |
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1289 var $elem = $(this); |
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1290 var data = $elem.data('digilib'); |
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1291 var args = Array.prototype.slice.call(arguments, 1); |
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1292 args.unshift(data); |
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1293 return actions[action].apply(this, args); |
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1294 } else if (typeof(action) === 'object' || !action) { |
634 | 1295 // call init on this |
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1296 return actions.init.apply(this, arguments); |
605 | 1297 } else { |
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1298 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
605 | 1299 } |
1300 }; | |
692 | 1301 |
604 | 1302 })(jQuery); |