Mercurial > hg > digilib-old
annotate client/digitallibrary/jquery/jquery.digilib.js @ 674:6c869c851c9a jquery
minor corrections
author | hertzhaft |
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date | Tue, 25 Jan 2011 18:35:53 +0100 |
parents | 6ca57779e740 |
children | d1605eb99d74 |
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 = { | |
9 log : function(){}, | |
10 debug : function(){}, | |
11 error : function(){} | |
12 }; | |
13 } | |
604 | 14 |
15 (function($) { | |
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16 var buttons = { |
610 | 17 reference : { |
18 onclick : "javascript:getRefWin()", | |
19 tooltip : "get a reference URL", | |
20 img : "reference.png" | |
21 }, | |
22 zoomin : { | |
643 | 23 onclick : ["zoomBy", 1.4], |
610 | 24 tooltip : "zoom in", |
25 img : "zoom-in.png" | |
26 }, | |
27 zoomout : { | |
643 | 28 onclick : ["zoomBy", 0.7], |
610 | 29 tooltip : "zoom out", |
30 img : "zoom-out.png" | |
31 }, | |
32 zoomarea : { | |
654 | 33 onclick : "zoomArea", |
610 | 34 tooltip : "zoom area", |
35 img : "zoom-area.png" | |
36 }, | |
37 zoomfull : { | |
650 | 38 onclick : "zoomFull", |
610 | 39 tooltip : "view the whole image", |
40 img : "zoom-full.png" | |
41 }, | |
42 pagewidth : { | |
650 | 43 onclick : ["zoomFull", "width"], |
610 | 44 tooltip : "page width", |
45 img : "pagewidth.png" | |
46 }, | |
47 back : { | |
623 | 48 onclick : ["gotoPage", "-1"], |
610 | 49 tooltip : "goto previous image", |
50 img : "back.png" | |
51 }, | |
52 fwd : { | |
623 | 53 onclick : ["gotoPage", "+1"], |
610 | 54 tooltip : "goto next image", |
55 img : "fwd.png" | |
56 }, | |
57 page : { | |
58 onclick : "javascript:gotoPageWin()", | |
59 tooltip : "specify image", | |
60 img : "page.png" | |
61 }, | |
62 bird : { | |
635 | 63 onclick : "showBirdDiv", |
610 | 64 tooltip : "show bird's eye view", |
65 img : "birds-eye.png" | |
66 }, | |
67 help : { | |
635 | 68 onclick : "showAboutDiv", |
610 | 69 tooltip : "about Digilib", |
70 img : "help.png" | |
71 }, | |
72 reset : { | |
73 onclick : "javascript:resetImage()", | |
74 tooltip : "reset image", | |
75 img : "reset.png" | |
76 }, | |
77 mark : { | |
647 | 78 onclick : "setMark", |
610 | 79 tooltip : "set a mark", |
80 img : "mark.png" | |
81 }, | |
82 delmark : { | |
650 | 83 onclick : "removeMark", |
610 | 84 tooltip : "delete the last mark", |
85 img : "delmark.png" | |
86 }, | |
87 hmir : { | |
661 | 88 onclick : ["mirror", "h"], |
610 | 89 tooltip : "mirror horizontally", |
90 img : "mirror-horizontal.png" | |
91 }, | |
92 vmir : { | |
661 | 93 onclick : ["mirror", "v"], |
610 | 94 tooltip : "mirror vertically", |
95 img : "mirror-vertical.png" | |
96 }, | |
97 rot : { | |
663 | 98 onclick : "rotate", |
610 | 99 tooltip : "rotate image", |
100 img : "rotate.png" | |
101 }, | |
102 brgt : { | |
663 | 103 onclick : "brightness", |
610 | 104 tooltip : "set brightness", |
105 img : "brightness.png" | |
106 }, | |
107 cont : { | |
663 | 108 onclick : "contrast", |
610 | 109 tooltip : "set contrast", |
110 img : "contrast.png" | |
111 }, | |
112 rgb : { | |
113 onclick : "javascript:setParamWin('rgb', '...')", | |
114 tooltip : "set rgb values", | |
115 img : "rgb.png" | |
116 }, | |
117 quality : { | |
118 onclick : "javascript:setQualityWin('Quality (0..2)')", | |
119 tooltip : "set image quality", | |
120 img : "quality.png" | |
121 }, | |
122 size : { | |
123 onclick : "javascript:toggleSizeMenu()", | |
124 tooltip : "set page size", | |
125 img : "size.png" | |
126 }, | |
127 calibrationx : { | |
128 onclick : "javascript:calibrate('x')", | |
129 tooltip : "calibrate screen x-ratio", | |
130 img : "calibration-x.png" | |
131 }, | |
132 scale : { | |
133 onclick : "javascript:toggleScaleMenu()", | |
134 tooltip : "change image scale", | |
135 img : "original-size.png" | |
136 }, | |
137 options : { | |
138 onclick : "javascript:toggleOptionDiv()", | |
139 tooltip : "hide options", | |
140 img : "options.png" | |
141 }, | |
142 SEP : { | |
143 img : "sep.png" | |
144 } | |
145 }; | |
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146 |
605 | 147 var defaults = { |
616 | 148 // version of this script |
635 | 149 'version' : 'jquery.digilib.js 0.9', |
616 | 150 // logo url |
151 'logoUrl' : '../img/digilib-logo-text1.png', | |
635 | 152 // homepage url (behind logo) |
153 'homeUrl' : 'http://digilib.berlios.de', | |
610 | 154 // base URL to Scaler servlet |
652 | 155 'scalerBaseUrl' : null, |
610 | 156 // list of Scaler parameters |
627 | 157 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
158 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
159 // Scaler parameter defaults | |
643 | 160 'pn' : 1, |
627 | 161 'ww' : 1.0, |
162 'wh' : 1.0, | |
163 'wx' : 0.0, | |
164 'wy' : 0.0, | |
165 'ws' : 1.0, | |
643 | 166 'mo' : '', |
167 'rot' : 0, | |
168 'cont' : 0, | |
169 'brgt' : 0, | |
170 'rgbm' : '0/0/0', | |
171 'rgba' : '0/0/0', | |
172 'ddpi' : null, | |
173 'ddpix' : null, | |
174 'ddpiy' : null, | |
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175 // list of digilib parameters |
650 | 176 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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177 // digilib parameter defaults |
643 | 178 'mk' : '', |
650 | 179 'clop' : '', |
643 | 180 // mode of operation: |
181 // fullscreen = take parameters from page URL, keep state in page URL | |
182 // embedded = take parameters from Javascript options, keep state inside object | |
610 | 183 'interactionMode' : 'fullscreen', |
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184 // buttons |
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185 'buttons' : buttons, |
668 | 186 // defaults for digilib buttons |
665 | 187 'buttonSettings' : { |
188 'fullscreen' : { | |
668 | 189 // path to button images (must end with a slash) |
665 | 190 'imagePath' : 'img/fullscreen/', |
191 //'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","options"], | |
192 '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"], | |
193 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","options"], | |
194 'customSet' : [] | |
195 }, | |
196 'embedded' : { | |
197 'imagePath' : 'img/embedded/16/', | |
198 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","scale","bird","help","options"], | |
199 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","options"], | |
200 'customSet' : [] | |
201 } | |
202 }, | |
652 | 203 // button groups |
616 | 204 // is birdView shown? |
205 'isBirdDivVisible' : false, | |
668 | 206 // dimensions of bird's eye div |
674 | 207 'birdDivWidth' : 200, |
208 'birdDivHeight' : 200, | |
668 | 209 // style of the zoom area indicator in the bird's eye div |
659 | 210 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
668 | 211 // style of zoom area "rubber band" |
212 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
616 | 213 // is the "about" window shown? |
214 'isAboutDivVisible' : false | |
215 | |
610 | 216 }; |
655 | 217 |
608 | 218 // affine geometry classes |
219 var geom = dlGeometry(); | |
655 | 220 |
643 | 221 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
655 | 222 |
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223 var actions = { |
668 | 224 // init: digilib initialization |
225 init : function(options) { | |
226 // settings for this digilib instance are merged from defaults and options | |
227 var settings = $.extend({}, defaults, options); | |
228 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
229 var queryParams = {}; | |
230 if (isFullscreen) { | |
231 queryParams = parseQueryParams(); | |
232 // check scalerBaseUrl | |
233 if (settings.scalerBaseUrl == null) { | |
234 // try the host this came from | |
235 var h = window.location.host; | |
236 if (window.location.host) { | |
237 var url = window.location.href; | |
238 // assume the page lives in [webapp]/jquery/ | |
239 var pos = url.indexOf('jquery/'); | |
240 if (pos > 0) { | |
241 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
652 | 242 } |
243 } | |
636 | 244 } |
668 | 245 } |
246 return this.each(function() { | |
247 var $elem = $(this); | |
248 var data = $elem.data('digilib'); | |
249 var elemSettings; | |
250 // if the plugin hasn't been initialized yet | |
251 if (!data) { | |
252 // merge query parameters | |
253 if (isFullscreen) { | |
254 elemSettings = $.extend({}, settings, queryParams); | |
255 } else { | |
256 elemSettings = $.extend({}, settings, parseImgParams($elem)); | |
604 | 257 } |
668 | 258 // store $(this) element in the settings |
259 data = { | |
260 $elem : $elem, | |
261 settings : elemSettings, | |
262 queryParams : queryParams | |
263 }; | |
264 // store in data element | |
265 $elem.data('digilib', data); | |
266 } | |
267 unpackParams(data); | |
268 // create HTML structure | |
269 setupScalerDiv(data); | |
270 setupButtons(data, 'standardSet'); | |
271 // bird's eye view creation | |
272 if (elemSettings.isBirdDivVisible) { | |
638 | 273 setupBirdDiv(data); |
274 } | |
668 | 275 // about window creation - TODO: could be deferred? restrict to only one item? |
276 setupAboutDiv(data); | |
277 }); | |
278 }, | |
279 | |
280 // destroy: clean up digilib | |
281 destroy : function(data) { | |
282 return this.each(function(){ | |
283 var $elem = $(this); | |
284 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
285 data.digilib.remove(); | |
286 $elem.removeData('digilib'); | |
287 }); | |
288 }, | |
289 | |
290 // show or hide the 'about' window | |
291 showAboutDiv : function(data, show) { | |
292 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
293 }, | |
655 | 294 |
668 | 295 // event handler: toggles the visibility of the bird's eye window |
296 showBirdDiv : function (data, show) { | |
297 if (data.$birdDiv == null) { | |
298 // no bird div -> create | |
299 setupBirdDiv(data); | |
300 } | |
301 // TODO: keep bird view visible after reload (parameter, cookie?) | |
302 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
303 }, | |
304 | |
305 // goto given page nr (+/-: relative) | |
306 gotoPage : function (data, pageNr) { | |
307 var settings = data.settings; | |
308 var oldpn = settings.pn; | |
309 var pn = setNumValue(settings, "pn", pageNr); | |
310 if (pn == null) return false; // nothing happened | |
311 if (pn < 1) { | |
312 alert("no such page (page number too low)"); | |
313 settings.pn = oldpn; | |
314 return false; | |
315 } | |
316 if (settings.pt) { | |
317 if (pn > settings.pt) { | |
318 alert("no such page (page number too high)"); | |
623 | 319 settings.pn = oldpn; |
320 return false; | |
634 | 321 } |
668 | 322 } |
323 // reset mk and others(?) | |
324 data.marks = []; | |
325 data.zoomArea = MAX_ZOOMAREA; | |
326 // then reload | |
327 redisplay(data); | |
328 }, | |
654 | 329 |
668 | 330 // zoom by a given factor |
331 zoomBy : function (data, factor) { | |
332 zoomBy(data, factor); | |
333 }, | |
647 | 334 |
668 | 335 // zoom interactively |
336 zoomArea : function (data) { | |
337 zoomArea(data); | |
338 }, | |
650 | 339 |
668 | 340 // zoom out to full page |
341 zoomFull : function (data, mode) { | |
342 data.zoomArea = MAX_ZOOMAREA; | |
343 if (mode === 'width') { | |
344 data.dlOpts.fitwidth = 1; | |
345 delete data.dlOpts.fitheight; | |
346 } else if (mode === 'height') { | |
347 data.dlOpts.fitheight = 1; | |
348 delete data.dlOpts.fitwidth; | |
349 } else { | |
350 delete data.dlOpts.fitwidth; | |
351 delete data.dlOpts.fitheight; | |
352 } | |
353 redisplay(data); | |
354 }, | |
355 | |
356 // set a mark by clicking (or giving a position) | |
357 setMark : function (data, mpos) { | |
358 if (mpos == null) { | |
359 // interactive | |
360 setMark(data); | |
361 } else { | |
362 // use position | |
363 data.marks.push(pos); | |
663 | 364 redisplay(data); |
604 | 365 } |
668 | 366 }, |
367 | |
368 // remove the last mark | |
369 removeMark : function (data) { | |
370 data.marks.pop(); | |
371 redisplay(data); | |
372 }, | |
373 | |
374 // mirror the image | |
375 mirror : function (data, mode) { | |
376 var flags = data.scalerFlags; | |
377 if (mode === 'h') { | |
378 if (flags.hmir) { | |
379 delete flags.hmir; | |
380 } else { | |
381 flags.hmir = 1; | |
382 } | |
383 } else { | |
384 if (flags.vmir) { | |
385 delete flags.vmir; | |
386 } else { | |
387 flags.vmir = 1; | |
388 } | |
389 } | |
390 redisplay(data); | |
391 }, | |
650 | 392 |
668 | 393 // rotate the image |
394 rotate : function (data, angle) { | |
395 var rot = data.settings.rot; | |
396 if (angle == null) { | |
397 angle = window.prompt("Rotation angle:", rot); | |
398 } | |
399 data.settings.rot = angle; | |
400 redisplay(data); | |
401 }, | |
402 | |
403 // change brightness | |
404 brightness : function (data, factor) { | |
405 var brgt = data.settings.brgt; | |
406 if (factor == null) { | |
407 factor = window.prompt("Brightness (-255..255)", brgt); | |
408 } | |
409 data.settings.brgt = factor; | |
410 redisplay(data); | |
411 }, | |
412 | |
413 // change contrast | |
414 contrast : function (data, factor) { | |
415 var cont = data.settings.cont; | |
416 if (factor == null) { | |
417 factor = window.prompt("Contrast (-8, 8)", cont); | |
418 } | |
419 data.settings.cont = factor; | |
420 redisplay(data); | |
421 } | |
605 | 422 }; |
604 | 423 |
608 | 424 // returns parameters from page url |
607 | 425 var parseQueryParams = function() { |
636 | 426 return parseQueryString(window.location.search.slice(1)); |
427 }; | |
655 | 428 |
636 | 429 // returns parameters from embedded img-element |
607 | 430 var parseImgParams = function($elem) { |
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431 var src = $elem.find('img').first().attr('src'); |
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432 if (!src) { |
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433 return null; |
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434 } |
607 | 435 var pos = src.indexOf('?'); |
436 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
437 var scalerUrl = src.substring(0, pos); | |
627 | 438 var params = parseQueryString(query); |
439 params.scalerBaseUrl = scalerUrl; | |
440 return params; | |
636 | 441 }; |
607 | 442 |
608 | 443 // parses query parameter string into parameter object |
607 | 444 var parseQueryString = function(query) { |
445 var pairs = query.split("&"); | |
627 | 446 var params = {}; |
636 | 447 //var keys = []; |
607 | 448 for (var i = 0; i < pairs.length; i++) { |
449 var pair = pairs[i].split("="); | |
450 if (pair.length === 2) { | |
627 | 451 params[pair[0]] = pair[1]; |
636 | 452 //keys.push(pair[0]); |
634 | 453 } |
636 | 454 } |
627 | 455 return params; |
636 | 456 }; |
668 | 457 |
643 | 458 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
459 var getParamString = function (settings, keys, defaults) { | |
615 | 460 var paramString = ''; |
650 | 461 var nx = false; |
615 | 462 for (i = 0; i < keys.length; ++i) { |
463 var key = keys[i]; | |
663 | 464 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 465 // first param gets no '&' |
650 | 466 if (nx) { |
467 paramString += '&'; | |
468 } else { | |
469 nx = true; | |
470 } | |
615 | 471 // add parm=val |
472 paramString += key + '=' + settings[key]; | |
643 | 473 } |
615 | 474 } |
475 return paramString; | |
631 | 476 }; |
477 | |
636 | 478 // returns URL and query string for Scaler |
479 var getScalerUrl = function (data) { | |
653 | 480 var settings = data.settings; |
652 | 481 if (settings.scalerBaseUrl == null) { |
482 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
483 } | |
665 | 484 packParams(data); |
636 | 485 var keys = settings.scalerParamNames; |
643 | 486 var queryString = getParamString(settings, keys, defaults); |
636 | 487 var url = settings.scalerBaseUrl + '?' + queryString; |
488 return url; | |
489 }; | |
490 | |
491 // returns URL and query string for current digilib | |
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492 var getDigilibUrl = function (data) { |
643 | 493 packParams(data); |
636 | 494 var settings = data.settings; |
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495 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
636 | 496 var url = window.location.toString(); |
497 var pos = url.indexOf('?'); | |
498 var baseUrl = url.substring(0, pos); | |
499 var newurl = baseUrl + '?' + queryString; | |
500 return newurl; | |
501 }; | |
502 | |
655 | 503 // processes some parameters into objects and stuff |
631 | 504 var unpackParams = function (data) { |
505 var settings = data.settings; | |
636 | 506 // zoom area |
631 | 507 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 508 data.zoomArea = zoomArea; |
636 | 509 // marks |
631 | 510 var marks = []; |
650 | 511 if (settings.mk) { |
512 var mk = settings.mk; | |
513 if (mk.indexOf(";") >= 0) { | |
514 var pa = mk.split(";"); // old format with ";" | |
515 } else { | |
516 var pa = mk.split(","); // new format | |
517 } | |
518 for (var i = 0; i < pa.length ; i++) { | |
519 var pos = pa[i].split("/"); | |
520 if (pos.length > 1) { | |
521 marks.push(geom.position(pos[0], pos[1])); | |
522 } | |
633 | 523 } |
631 | 524 } |
643 | 525 data.marks = marks; |
650 | 526 // mo (Scaler flags) |
527 var flags = {}; | |
528 if (settings.mo) { | |
529 var pa = settings.mo.split(","); | |
530 for (var i = 0; i < pa.length ; i++) { | |
531 flags[pa[i]] = pa[i]; | |
532 } | |
533 } | |
534 data.scalerFlags = flags; | |
535 // clop (digilib options) | |
536 var opts = {}; | |
537 if (settings.clop) { | |
538 var pa = settings.clop.split(","); | |
539 for (var i = 0; i < pa.length ; i++) { | |
540 opts[pa[i]] = pa[i]; | |
541 } | |
542 } | |
543 data.dlOpts = opts; | |
661 | 544 // birdview option |
545 if (opts.birdview) { | |
546 settings.isBirdDivVisible = 1; | |
547 } | |
655 | 548 }; |
549 | |
631 | 550 // put objects back into parameters |
551 var packParams = function (data) { | |
552 var settings = data.settings; | |
636 | 553 // zoom area |
643 | 554 if (data.zoomArea) { |
647 | 555 settings.wx = cropFloat(data.zoomArea.x); |
556 settings.wy = cropFloat(data.zoomArea.y); | |
557 settings.ww = cropFloat(data.zoomArea.width); | |
558 settings.wh = cropFloat(data.zoomArea.height); | |
631 | 559 } |
636 | 560 // marks |
643 | 561 if (data.marks) { |
650 | 562 settings.mk = ''; |
643 | 563 for (var i = 0; i < data.marks.length; i++) { |
650 | 564 if (i) { |
565 settings.mk += ','; | |
566 } | |
567 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
631 | 568 } |
650 | 569 } |
570 // Scaler flags | |
571 if (data.scalerFlags) { | |
572 var mo = ''; | |
573 for (var f in data.scalerFlags) { | |
574 if (mo) { | |
575 mo += ','; | |
576 } | |
577 mo += f; | |
578 } | |
579 settings.mo = mo; | |
580 } | |
661 | 581 // digilib option birdview |
582 if (settings.isBirdDivVisible) { | |
583 data.dlOpts.birdview = 1; | |
662 | 584 } else { |
585 delete data.dlOpts.birdview; | |
661 | 586 } |
650 | 587 // digilib options |
588 if (data.dlOpts) { | |
589 var clop = ''; | |
590 for (var o in data.dlOpts) { | |
591 if (clop) { | |
592 clop += ','; | |
593 } | |
594 clop += o; | |
595 } | |
596 settings.clop = clop; | |
631 | 597 } |
598 }; | |
655 | 599 |
622 | 600 // (re)load the img from a new scaler URL |
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601 var redisplay = function (data) { |
636 | 602 var settings = data.settings; |
603 if (settings.interactionMode === 'fullscreen') { | |
604 // update location.href (browser URL) in fullscreen mode | |
644
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605 var url = getDigilibUrl(data); |
636 | 606 var history = window.history; |
607 if (typeof(history.pushState) === 'function') { | |
608 console.debug("we could modify history, but we don't..."); | |
609 } | |
610 window.location = url; | |
611 } else { | |
612 // embedded mode -- just change img src | |
613 var url = getScalerUrl(data); | |
614 data.$img.attr('src', url); | |
670
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615 }; |
622 | 616 }; |
617 | |
662 | 618 // returns maximum size for scaler img in fullscreen mode |
619 var getFullscreenImgSize = function($elem) { | |
620 var $win = $(window); | |
621 var winH = $win.height(); | |
622 var winW = $win.width(); | |
623 // TODO: account for borders? | |
624 return geom.size(winW, winH); | |
625 }; | |
626 | |
608 | 627 // creates HTML structure for digilib in elem |
627 | 628 var setupScalerDiv = function (data) { |
629 var settings = data.settings; | |
647 | 630 var $elem = data.$elem; |
623 | 631 var $img; |
608 | 632 if (settings.interactionMode === 'fullscreen') { |
609 | 633 // fullscreen |
634 var imgSize = getFullscreenImgSize($elem); | |
650 | 635 // fitwidth/height omits destination height/width |
636 if (data.dlOpts['fitheight'] == null) { | |
637 settings.dw = imgSize.width; | |
638 } | |
639 if (data.dlOpts['fitwidth'] == null) { | |
640 settings.dh = imgSize.height; | |
641 } | |
613
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642 $img = $('<img/>'); |
636 | 643 var scalerUrl = getScalerUrl(data); |
644 $img.attr('src', scalerUrl); | |
609 | 645 } else { |
613
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646 // embedded mode -- try to keep img tag |
623 | 647 $img = $elem.find('img'); |
613
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648 if ($img.length > 0) { |
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649 console.debug("img detach:",$img); |
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650 $img.detach(); |
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651 } else { |
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652 $img = $('<img/>'); |
636 | 653 var scalerUrl = getScalerUrl(data); |
654 $img.attr('src', scalerUrl); | |
613
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655 } |
608 | 656 } |
613
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657 // create new html |
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658 $elem.empty(); // TODO: should we keep stuff for customization? |
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659 var $scaler = $('<div class="scaler"/>'); |
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660 $elem.append($scaler); |
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661 $scaler.append($img); |
622 | 662 $img.addClass('pic'); |
649 | 663 data.$scaler = $scaler; |
636 | 664 data.$img = $img; |
665 $img.load(scalerImgLoadedHandler(data)); | |
608 | 666 }; |
615 | 667 |
610 | 668 // creates HTML structure for buttons in elem |
628
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669 var setupButtons = function (data, actionGroup) { |
647 | 670 var $elem = data.$elem; |
628
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671 var settings = data.settings; |
665 | 672 // if (settings.interactionMode === 'fullscreen') { |
673 var $buttonsDiv = $('<div class="buttons"></div>'); | |
674 $elem.append($buttonsDiv); | |
675 var mode = settings.interactionMode; | |
672
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676 var buttonSettings = settings.buttonSettings[mode]; |
665 | 677 var actionNames = buttonSettings[actionGroup]; |
678 for (var i = 0; i < actionNames.length; i++) { | |
679 var actionName = actionNames[i]; | |
680 var buttonConfig = settings.buttons[actionName]; | |
681 // construct the button html | |
682 var $button = $('<div class="button"></div>'); | |
683 var $a = $('<a/>'); | |
684 var $img = $('<img class="button"/>'); | |
685 $buttonsDiv.append($button); | |
686 $button.append($a); | |
687 $a.append($img); | |
688 // add attributes and bindings | |
689 $button.attr('title', buttonConfig.tooltip); | |
690 $button.addClass('button-' + actionName); | |
691 // create handler for the buttons | |
692 $a.bind('click.digilib', (function () { | |
693 // we create a new closure to capture the value of action | |
694 var action = buttonConfig.onclick; | |
695 if ($.isArray(action)) { | |
696 // the handler function calls digilib with action and parameters | |
697 return function (evt) { | |
698 console.debug('click action=', action, ' evt=', evt); | |
699 $elem.digilib.apply($elem, action); | |
700 return false; | |
701 }; | |
702 } else { | |
703 // the handler function calls digilib with action | |
704 return function (evt) { | |
705 console.debug('click action=', action, ' evt=', evt); | |
706 $elem.digilib(action); | |
707 return false; | |
708 }; | |
709 } | |
710 })()); | |
711 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
637 | 712 } |
662 | 713 // make buttons div scroll if too large for window |
714 if ($buttonsDiv.height() > $(window).height() - 10) { | |
715 $buttonsDiv.css('position', 'absolute'); | |
716 } | |
612 | 717 return $buttonsDiv; |
610 | 718 }; |
615 | 719 |
720 // creates HTML structure for the bird's eye view in elem | |
638 | 721 var setupBirdDiv = function (data) { |
647 | 722 var $elem = data.$elem; |
628
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723 var settings = data.settings; |
615 | 724 // use only the relevant parameters |
725 var keys = ['fn','pn','dw','dh']; | |
674 | 726 var birdDivOptions = { |
727 dw : settings.birdDivWidth, | |
728 dh : settings.birdDivHeight | |
729 }; | |
730 var birdSettings = $.extend({}, settings, birdDivOptions); | |
628
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731 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
615 | 732 // the bird's eye div |
658
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733 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
615 | 734 // the detail indicator frame |
670
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735 var $birdzoomDiv = $('<div class="birdzoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
615 | 736 // the small image |
737 var $birdImg = $('<img class="birdimg"/>'); | |
658
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738 $elem.append($birdDiv); |
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739 $birdDiv.append($birdzoomDiv); |
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740 $birdDiv.append($birdImg); |
670
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741 $birdzoomDiv.css(data.settings.birdIndicatorStyle); |
658
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742 data.$birdDiv = $birdDiv; |
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743 data.$birdImg = $birdImg; |
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744 $birdImg.load(birdImgLoadedHandler(data)); |
615 | 745 $birdImg.attr('src', birdUrl); |
640
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746 if (data.settings.isBirdDivVisible) { |
658
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747 $birdDiv.fadeIn(); |
640
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748 } |
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749 }; |
615 | 750 |
625 | 751 // creates HTML structure for the about view in elem |
628
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752 var setupAboutDiv = function (data) { |
647 | 753 var $elem = data.$elem; |
628
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754 var settings = data.settings; |
625 | 755 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
616 | 756 var $header = $('<p>Digilib Graphic Viewer</p>'); |
757 var $link = $('<a/>'); | |
758 var $logo = $('<img class="logo" title="digilib"/>'); | |
759 var $content = $('<p/>'); | |
760 $elem.append($aboutDiv); | |
761 $aboutDiv.append($header); | |
762 $aboutDiv.append($link); | |
763 $aboutDiv.append($content); | |
764 $link.append($logo); | |
765 $logo.attr('src', settings.logoUrl); | |
635 | 766 $link.attr('href', settings.homeUrl); |
616 | 767 $content.text('Version: ' + settings.version); |
635 | 768 // click hides |
649 | 769 $aboutDiv.bind('click.digilib', function () { |
646 | 770 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
649 | 771 return false; |
772 }); | |
635 | 773 data.$aboutDiv = $aboutDiv; |
634 | 774 }; |
775 | |
635 | 776 // shows some window e.g. 'about' (toggle visibility if show is null) |
777 var showDiv = function (isVisible, $div, show) { | |
645 | 778 if (show == null) { |
635 | 779 // toggle visibility |
780 isVisible = !isVisible; | |
781 } else { | |
782 // set visibility | |
783 isVisible = show; | |
784 } | |
785 if (isVisible) { | |
786 $div.fadeIn(); | |
787 } else { | |
788 $div.fadeOut(); | |
789 } | |
790 return isVisible; | |
634 | 791 }; |
616 | 792 |
658
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793 // create Transform from area and $img |
664
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794 var getImgTrafo = function ($img, area, data) { |
658
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795 var picrect = geom.rectangle($img); |
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796 var trafo = geom.transform(); |
664
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797 // zoom area offset |
658
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798 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
664
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799 // zoom area size |
658
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800 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
673 | 801 // rotate (around transformed image center i.e. [0.5,0.5]) |
664
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802 if (data) { |
672
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803 var rot = trafo.getRotationAround(parseFloat(data.settings.rot), |
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804 geom.position(0.5, 0.5)); |
664
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805 trafo.concat(rot); |
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806 } |
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807 // scale to screen position and size |
658
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808 trafo.concat(trafo.getScale(picrect)); |
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809 trafo.concat(trafo.getTranslation(picrect)); |
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810 return trafo; |
655 | 811 }; |
658
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812 |
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813 // returns function for load event of scaler img |
636 | 814 var scalerImgLoadedHandler = function (data) { |
815 var $img = data.$img; | |
633 | 816 return function () { |
627 | 817 console.debug("img loaded! this=", this, " data=", data); |
818 // create Transform from current area and picsize | |
664
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819 data.imgTrafo = getImgTrafo($img, data.zoomArea, data); |
627 | 820 // display marks |
633 | 821 renderMarks(data); |
627 | 822 //digilib.showArrows(); // show arrow overlays for zoom navigation |
670
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823 var $birdImg = data.$birdImg; |
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824 if ($birdImg) { |
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825 $birdImg.triggerHandler('load'); |
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826 }; |
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827 }; |
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828 }; |
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829 |
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830 // returns function for load event of bird's eye view img |
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831 var birdImgLoadedHandler = function (data) { |
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832 var $img = data.$birdImg; |
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833 return function () { |
668 | 834 if (!$img) return; |
670
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835 // console.debug("birdimg loaded! this=", this, " data=", data); |
658
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836 // create Transform from current area and picsize |
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837 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
668 | 838 // display red indicator around zoomarea |
658
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839 renderBirdArea(data); |
613
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840 }; |
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841 }; |
633 | 842 |
843 // place marks on the image | |
844 var renderMarks = function (data) { | |
647 | 845 var $elem = data.$elem; |
643 | 846 var marks = data.marks; |
649 | 847 // TODO: clear marks first(?) |
633 | 848 for (var i = 0; i < marks.length; i++) { |
849 var mark = marks[i]; | |
643 | 850 if (data.zoomArea.containsPosition(mark)) { |
633 | 851 var mpos = data.imgTrafo.transform(mark); |
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852 console.debug("renderMarks: mpos=",mpos); |
633 | 853 // create mark |
854 var html = '<div class="mark">'+(i+1)+'</div>'; | |
855 var $mark = $(html); | |
856 $elem.append($mark); | |
654 | 857 $mark.offset({left : mpos.x, top : mpos.y}); |
633 | 858 } |
859 } | |
860 }; | |
655 | 861 |
658
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862 var renderBirdArea = function (data) { |
674 | 863 var $birdzoom = data.$birdDiv.find('div.birdzoom'); |
659 | 864 var zoomArea = data.zoomArea; |
865 var indRect = data.birdTrafo.transform(zoomArea); | |
670
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866 var coords = { |
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867 left : indRect.x-2, // acount for frame width |
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868 top : indRect.y-2, |
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869 width : indRect.width, |
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870 height: indRect.height |
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871 }; |
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872 var normalSize = isFullArea(zoomArea); |
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873 if (data.settings.interactionMode === 'fullscreen') { |
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874 // no animation for fullscreen |
674 | 875 if (normalSize) return $birdzoom.hide(); |
876 $birdzoom.width(coords.width); | |
877 $birdzoom.height(coords.height); | |
878 $birdzoom.offset(coords); | |
879 $birdzoom.show(); | |
670
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880 return; |
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881 }; |
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882 // nice animation for embedded mode :-) |
674 | 883 var makeCompleteFunction = function($birdzoom, normalSize) { |
670
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884 return function() { |
674 | 885 if (normalSize) $birdzoom.hide(); |
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886 }; |
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887 }; |
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888 var opts = { |
674 | 889 'complete' : makeCompleteFunction($birdzoom, normalSize) |
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890 }; |
674 | 891 if (!normalSize && $birdzoom.css('display') === 'none') $birdzoom.show(); |
892 $birdzoom.animate(coords, opts); | |
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893 }; |
659 | 894 |
647 | 895 // zooms by the given factor |
643 | 896 var zoomBy = function(data, factor) { |
897 var area = data.zoomArea; | |
898 var newarea = area.copy(); | |
899 // scale | |
900 newarea.width /= factor; | |
901 newarea.height /= factor; | |
902 // and recenter | |
903 newarea.x -= 0.5 * (newarea.width - area.width); | |
904 newarea.y -= 0.5 * (newarea.height - area.height); | |
905 newarea = MAX_ZOOMAREA.fit(newarea); | |
906 data.zoomArea = newarea; | |
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907 redisplay(data); |
643 | 908 }; |
909 | |
647 | 910 // add a mark where clicked |
911 var setMark = function (data) { | |
649 | 912 var $scaler = data.$scaler; |
647 | 913 // start event capturing |
649 | 914 $scaler.one('click.digilib', function (evt) { |
647 | 915 // event handler adding a new mark |
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916 var mpos = geom.position(evt); |
647 | 917 var pos = data.imgTrafo.invtransform(mpos); |
918 data.marks.push(pos); | |
919 redisplay(data); | |
649 | 920 return false; // do we even get here? |
647 | 921 }); |
922 }; | |
668 | 923 |
654 | 924 var zoomArea = function(data) { |
925 $elem = data.$elem; | |
926 $scaler = data.$scaler; | |
927 var pt1, pt2; | |
928 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
929 $elem.append($zoomDiv); | |
668 | 930 $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 931 var picRect = geom.rectangle($scaler); |
932 // FIX ME: is there a way to query the border width from CSS info? | |
933 // rect.x -= 2; // account for overlay borders | |
934 // rect.y -= 2; | |
935 | |
936 var zoomStart = function (evt) { | |
937 pt1 = geom.position(evt); | |
938 // setup and show zoom div | |
939 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
940 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
668 | 941 $zoomDiv.width(0).height(0); |
654 | 942 $zoomDiv.show(); |
943 // register events | |
944 $elem.bind("mousemove.digilib", zoomMove); | |
945 $elem.bind("mouseup.digilib", zoomEnd); | |
946 return false; | |
947 }; | |
668 | 948 |
654 | 949 // mouseup handler: end moving |
950 var zoomEnd = function (evt) { | |
951 pt2 = geom.position(evt); | |
952 // assume a click and continue if the area is too small | |
953 var clickRect = geom.rectangle(pt1, pt2); | |
954 if (clickRect.getArea() <= 5) { | |
955 return false; | |
956 } | |
957 // hide zoom div | |
958 $zoomDiv.remove(); | |
959 // unregister events | |
960 $elem.unbind("mousemove.digilib", zoomMove); | |
961 $elem.unbind("mouseup.digilib", zoomEnd); | |
962 // clip and transform | |
963 clickRect.clipTo(picRect); | |
964 var area = data.imgTrafo.invtransform(clickRect); | |
965 data.zoomArea = area; | |
966 // zoomed is always fit | |
967 data.settings.ws = 1; | |
968 redisplay(data); | |
969 return false; | |
970 }; | |
668 | 971 |
654 | 972 // mouse move handler |
973 var zoomMove = function (evt) { | |
974 pt2 = geom.position(evt); | |
975 var rect = geom.rectangle(pt1, pt2); | |
976 rect.clipTo(picRect); | |
977 // update zoom div | |
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978 rect.adjustDiv($zoomDiv); |
654 | 979 return false; |
980 }; | |
668 | 981 |
654 | 982 // bind start zoom handler |
983 $scaler.one('mousedown.digilib', zoomStart); | |
984 }; | |
647 | 985 |
650 | 986 // sets a key to a value (relative values with +/- if relative=true) |
987 var setNumValue = function(settings, key, value) { | |
988 if (isNumber(value)) return settings[key] = value; | |
989 var sign = value.substring(0,1); | |
990 if (sign === '+' || sign === '-') { | |
991 if (settings[key] == null) { | |
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992 // this isn't perfect but still... |
650 | 993 settings[key] = 0; |
994 } | |
995 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
996 } else { | |
997 settings[key] = value; | |
998 } | |
999 return settings[key]; | |
1000 }; | |
655 | 1001 |
1002 // auxiliary function (from old dllib.js) | |
659 | 1003 isFullArea = function(area) { |
1004 return (area.width === 1.0) && (area.height === 1.0); | |
655 | 1005 }; |
1006 | |
641 | 1007 // auxiliary function (from Douglas Crockford, A.10) |
1008 var isNumber = function isNumber(value) { | |
1009 return typeof value === 'number' && isFinite(value); | |
1010 }; | |
655 | 1011 |
631 | 1012 // auxiliary function to crop senseless precision |
1013 var cropFloat = function (x) { | |
637 | 1014 return parseInt(10000 * x, 10) / 10000; |
631 | 1015 }; |
655 | 1016 |
605 | 1017 // hook plugin into jquery |
651
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1018 $.fn.digilib = function(action) { |
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1019 if (actions[action]) { |
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1020 // call action on this with the remaining arguments (inserting data as first argument) |
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1021 var $elem = $(this); |
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1022 var data = $elem.data('digilib'); |
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1023 var args = Array.prototype.slice.call(arguments, 1); |
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1024 args.unshift(data); |
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1025 return actions[action].apply(this, args); |
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1026 } else if (typeof(action) === 'object' || !action) { |
634 | 1027 // call init on this |
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1028 return actions.init.apply(this, arguments); |
605 | 1029 } else { |
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1030 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
605 | 1031 } |
1032 }; | |
604 | 1033 |
1034 })(jQuery); |