Mercurial > hg > digilib-old
annotate client/digitallibrary/jquery/jquery.digilib.js @ 688:0235a8e63818 jquery
reset button plus action
author | hertzhaft |
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date | Wed, 26 Jan 2011 22:34:26 +0100 |
parents | 97c01b911754 |
children | f5f2b262be07 |
rev | line source |
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604 | 1 /* |
2 * digilib jQuery plugin | |
3 * | |
4 */ | |
655 | 5 |
636 | 6 // fallback for console.log calls |
7 if (typeof(console) === 'undefined') { | |
8 var console = { | |
686 | 9 log : function(){ |
10 var $debug = $('#debug'); | |
11 if (!$debug) return; | |
12 var args = Array.prototype.slice.call(arguments); | |
13 var argstr = args.join(' '); | |
14 $debug.append('<div class="_log">' + argstr + '</div>'); | |
15 }, | |
16 debug : function(){ | |
17 // debug for MSIE etc | |
18 var $debug = $('#debug'); | |
19 if (!$debug) return; | |
20 var args = Array.prototype.slice.call(arguments); | |
21 var argstr = args.join(' '); | |
22 $debug.append('<div class="_debug">' + argstr + '</div>'); | |
23 }, | |
24 error : function(){ | |
25 var $debug = $('#debug'); | |
26 if (!$debug) return; | |
27 var args = Array.prototype.slice.call(arguments); | |
28 var argstr = args.join(' '); | |
29 $debug.append('<div class="_error">' + argstr + '</div>'); | |
30 } | |
636 | 31 }; |
32 } | |
604 | 33 |
34 (function($) { | |
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35 var buttons = { |
610 | 36 reference : { |
37 onclick : "javascript:getRefWin()", | |
38 tooltip : "get a reference URL", | |
39 img : "reference.png" | |
40 }, | |
41 zoomin : { | |
643 | 42 onclick : ["zoomBy", 1.4], |
610 | 43 tooltip : "zoom in", |
44 img : "zoom-in.png" | |
45 }, | |
46 zoomout : { | |
643 | 47 onclick : ["zoomBy", 0.7], |
610 | 48 tooltip : "zoom out", |
49 img : "zoom-out.png" | |
50 }, | |
51 zoomarea : { | |
654 | 52 onclick : "zoomArea", |
610 | 53 tooltip : "zoom area", |
54 img : "zoom-area.png" | |
55 }, | |
56 zoomfull : { | |
650 | 57 onclick : "zoomFull", |
610 | 58 tooltip : "view the whole image", |
59 img : "zoom-full.png" | |
60 }, | |
61 pagewidth : { | |
650 | 62 onclick : ["zoomFull", "width"], |
610 | 63 tooltip : "page width", |
64 img : "pagewidth.png" | |
65 }, | |
66 back : { | |
623 | 67 onclick : ["gotoPage", "-1"], |
610 | 68 tooltip : "goto previous image", |
69 img : "back.png" | |
70 }, | |
71 fwd : { | |
623 | 72 onclick : ["gotoPage", "+1"], |
610 | 73 tooltip : "goto next image", |
74 img : "fwd.png" | |
75 }, | |
76 page : { | |
77 onclick : "javascript:gotoPageWin()", | |
78 tooltip : "specify image", | |
79 img : "page.png" | |
80 }, | |
81 bird : { | |
635 | 82 onclick : "showBirdDiv", |
610 | 83 tooltip : "show bird's eye view", |
84 img : "birds-eye.png" | |
85 }, | |
86 help : { | |
635 | 87 onclick : "showAboutDiv", |
610 | 88 tooltip : "about Digilib", |
89 img : "help.png" | |
90 }, | |
91 reset : { | |
688 | 92 onclick : "reset", |
610 | 93 tooltip : "reset image", |
94 img : "reset.png" | |
95 }, | |
96 mark : { | |
647 | 97 onclick : "setMark", |
610 | 98 tooltip : "set a mark", |
99 img : "mark.png" | |
100 }, | |
101 delmark : { | |
650 | 102 onclick : "removeMark", |
610 | 103 tooltip : "delete the last mark", |
104 img : "delmark.png" | |
105 }, | |
106 hmir : { | |
661 | 107 onclick : ["mirror", "h"], |
610 | 108 tooltip : "mirror horizontally", |
109 img : "mirror-horizontal.png" | |
110 }, | |
111 vmir : { | |
661 | 112 onclick : ["mirror", "v"], |
610 | 113 tooltip : "mirror vertically", |
114 img : "mirror-vertical.png" | |
115 }, | |
116 rot : { | |
663 | 117 onclick : "rotate", |
610 | 118 tooltip : "rotate image", |
119 img : "rotate.png" | |
120 }, | |
121 brgt : { | |
663 | 122 onclick : "brightness", |
610 | 123 tooltip : "set brightness", |
124 img : "brightness.png" | |
125 }, | |
126 cont : { | |
663 | 127 onclick : "contrast", |
610 | 128 tooltip : "set contrast", |
129 img : "contrast.png" | |
130 }, | |
131 rgb : { | |
132 onclick : "javascript:setParamWin('rgb', '...')", | |
133 tooltip : "set rgb values", | |
134 img : "rgb.png" | |
135 }, | |
136 quality : { | |
137 onclick : "javascript:setQualityWin('Quality (0..2)')", | |
138 tooltip : "set image quality", | |
139 img : "quality.png" | |
140 }, | |
141 size : { | |
142 onclick : "javascript:toggleSizeMenu()", | |
143 tooltip : "set page size", | |
144 img : "size.png" | |
145 }, | |
146 calibrationx : { | |
147 onclick : "javascript:calibrate('x')", | |
148 tooltip : "calibrate screen x-ratio", | |
149 img : "calibration-x.png" | |
150 }, | |
151 scale : { | |
152 onclick : "javascript:toggleScaleMenu()", | |
153 tooltip : "change image scale", | |
154 img : "original-size.png" | |
155 }, | |
156 options : { | |
157 onclick : "javascript:toggleOptionDiv()", | |
158 tooltip : "hide options", | |
159 img : "options.png" | |
160 }, | |
161 SEP : { | |
162 img : "sep.png" | |
163 } | |
164 }; | |
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165 |
605 | 166 var defaults = { |
616 | 167 // version of this script |
635 | 168 'version' : 'jquery.digilib.js 0.9', |
616 | 169 // logo url |
170 'logoUrl' : '../img/digilib-logo-text1.png', | |
635 | 171 // homepage url (behind logo) |
172 'homeUrl' : 'http://digilib.berlios.de', | |
610 | 173 // base URL to Scaler servlet |
652 | 174 'scalerBaseUrl' : null, |
610 | 175 // list of Scaler parameters |
627 | 176 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
177 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
178 // Scaler parameter defaults | |
643 | 179 'pn' : 1, |
627 | 180 'ww' : 1.0, |
181 'wh' : 1.0, | |
182 'wx' : 0.0, | |
183 'wy' : 0.0, | |
184 'ws' : 1.0, | |
643 | 185 'mo' : '', |
186 'rot' : 0, | |
187 'cont' : 0, | |
188 'brgt' : 0, | |
189 'rgbm' : '0/0/0', | |
190 'rgba' : '0/0/0', | |
191 'ddpi' : null, | |
192 'ddpix' : null, | |
193 'ddpiy' : null, | |
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194 // list of digilib parameters |
650 | 195 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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196 // digilib parameter defaults |
643 | 197 'mk' : '', |
650 | 198 'clop' : '', |
643 | 199 // mode of operation: |
200 // fullscreen = take parameters from page URL, keep state in page URL | |
201 // embedded = take parameters from Javascript options, keep state inside object | |
610 | 202 'interactionMode' : 'fullscreen', |
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203 // buttons |
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204 'buttons' : buttons, |
668 | 205 // defaults for digilib buttons |
665 | 206 'buttonSettings' : { |
207 'fullscreen' : { | |
668 | 208 // path to button images (must end with a slash) |
665 | 209 'imagePath' : 'img/fullscreen/', |
210 //'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","options"], | |
688 | 211 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","mark","delmark","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","calibrationx","scale","bird","help","reset","options"], |
212 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","options"], | |
682 | 213 'buttonSets' : ['standardSet', 'specialSet'] |
665 | 214 }, |
215 'embedded' : { | |
216 'imagePath' : 'img/embedded/16/', | |
688 | 217 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","scale","bird","help","reset","options"], |
218 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","options"], | |
682 | 219 'buttonSets' : ['standardSet', 'specialSet'] |
665 | 220 } |
221 }, | |
652 | 222 // button groups |
616 | 223 // is birdView shown? |
224 'isBirdDivVisible' : false, | |
668 | 225 // dimensions of bird's eye div |
674 | 226 'birdDivWidth' : 200, |
227 'birdDivHeight' : 200, | |
668 | 228 // style of the zoom area indicator in the bird's eye div |
659 | 229 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
668 | 230 // style of zoom area "rubber band" |
231 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
616 | 232 // is the "about" window shown? |
233 'isAboutDivVisible' : false | |
234 | |
610 | 235 }; |
655 | 236 |
608 | 237 // affine geometry classes |
238 var geom = dlGeometry(); | |
655 | 239 |
643 | 240 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
655 | 241 |
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242 var actions = { |
668 | 243 // init: digilib initialization |
244 init : function(options) { | |
245 // settings for this digilib instance are merged from defaults and options | |
246 var settings = $.extend({}, defaults, options); | |
247 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
248 var queryParams = {}; | |
249 if (isFullscreen) { | |
250 queryParams = parseQueryParams(); | |
251 // check scalerBaseUrl | |
252 if (settings.scalerBaseUrl == null) { | |
253 // try the host this came from | |
254 var h = window.location.host; | |
255 if (window.location.host) { | |
256 var url = window.location.href; | |
257 // assume the page lives in [webapp]/jquery/ | |
258 var pos = url.indexOf('jquery/'); | |
259 if (pos > 0) { | |
260 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
652 | 261 } |
262 } | |
636 | 263 } |
668 | 264 } |
265 return this.each(function() { | |
266 var $elem = $(this); | |
267 var data = $elem.data('digilib'); | |
688 | 268 var params, elemSettings; |
668 | 269 // if the plugin hasn't been initialized yet |
270 if (!data) { | |
271 // merge query parameters | |
272 if (isFullscreen) { | |
688 | 273 params = queryParams; |
668 | 274 } else { |
688 | 275 params = parseImgParams($elem); |
276 }; | |
668 | 277 // store $(this) element in the settings |
688 | 278 elemSettings = $.extend({}, settings, params); |
668 | 279 data = { |
280 $elem : $elem, | |
281 settings : elemSettings, | |
688 | 282 queryParams : params |
668 | 283 }; |
284 // store in data element | |
285 $elem.data('digilib', data); | |
286 } | |
287 unpackParams(data); | |
682 | 288 // create HTML structure for scaler |
668 | 289 setupScalerDiv(data); |
682 | 290 // HTML for buttons (default is first button set) |
291 setupButtons(data, 0); | |
668 | 292 // bird's eye view creation |
293 if (elemSettings.isBirdDivVisible) { | |
638 | 294 setupBirdDiv(data); |
295 } | |
668 | 296 // about window creation - TODO: could be deferred? restrict to only one item? |
297 setupAboutDiv(data); | |
298 }); | |
299 }, | |
300 | |
301 // destroy: clean up digilib | |
302 destroy : function(data) { | |
303 return this.each(function(){ | |
304 var $elem = $(this); | |
305 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
306 data.digilib.remove(); | |
307 $elem.removeData('digilib'); | |
308 }); | |
309 }, | |
310 | |
311 // show or hide the 'about' window | |
312 showAboutDiv : function(data, show) { | |
313 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
314 }, | |
655 | 315 |
668 | 316 // event handler: toggles the visibility of the bird's eye window |
317 showBirdDiv : function (data, show) { | |
318 if (data.$birdDiv == null) { | |
319 // no bird div -> create | |
320 setupBirdDiv(data); | |
321 } | |
322 // TODO: keep bird view visible after reload (parameter, cookie?) | |
323 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
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324 data.$birdImg.triggerHandler('load'); |
668 | 325 }, |
326 | |
327 // goto given page nr (+/-: relative) | |
328 gotoPage : function (data, pageNr) { | |
329 var settings = data.settings; | |
330 var oldpn = settings.pn; | |
331 var pn = setNumValue(settings, "pn", pageNr); | |
332 if (pn == null) return false; // nothing happened | |
333 if (pn < 1) { | |
334 alert("no such page (page number too low)"); | |
335 settings.pn = oldpn; | |
336 return false; | |
337 } | |
338 if (settings.pt) { | |
339 if (pn > settings.pt) { | |
340 alert("no such page (page number too high)"); | |
623 | 341 settings.pn = oldpn; |
342 return false; | |
634 | 343 } |
668 | 344 } |
345 // reset mk and others(?) | |
346 data.marks = []; | |
347 data.zoomArea = MAX_ZOOMAREA; | |
348 // then reload | |
349 redisplay(data); | |
350 }, | |
654 | 351 |
668 | 352 // zoom by a given factor |
353 zoomBy : function (data, factor) { | |
354 zoomBy(data, factor); | |
355 }, | |
647 | 356 |
668 | 357 // zoom interactively |
358 zoomArea : function (data) { | |
359 zoomArea(data); | |
360 }, | |
650 | 361 |
668 | 362 // zoom out to full page |
363 zoomFull : function (data, mode) { | |
364 data.zoomArea = MAX_ZOOMAREA; | |
365 if (mode === 'width') { | |
366 data.dlOpts.fitwidth = 1; | |
367 delete data.dlOpts.fitheight; | |
368 } else if (mode === 'height') { | |
369 data.dlOpts.fitheight = 1; | |
370 delete data.dlOpts.fitwidth; | |
371 } else { | |
372 delete data.dlOpts.fitwidth; | |
373 delete data.dlOpts.fitheight; | |
374 } | |
375 redisplay(data); | |
376 }, | |
377 | |
378 // set a mark by clicking (or giving a position) | |
379 setMark : function (data, mpos) { | |
380 if (mpos == null) { | |
381 // interactive | |
382 setMark(data); | |
383 } else { | |
384 // use position | |
385 data.marks.push(pos); | |
663 | 386 redisplay(data); |
604 | 387 } |
668 | 388 }, |
389 | |
390 // remove the last mark | |
391 removeMark : function (data) { | |
392 data.marks.pop(); | |
393 redisplay(data); | |
394 }, | |
395 | |
396 // mirror the image | |
397 mirror : function (data, mode) { | |
398 var flags = data.scalerFlags; | |
399 if (mode === 'h') { | |
400 if (flags.hmir) { | |
401 delete flags.hmir; | |
402 } else { | |
403 flags.hmir = 1; | |
404 } | |
405 } else { | |
406 if (flags.vmir) { | |
407 delete flags.vmir; | |
408 } else { | |
409 flags.vmir = 1; | |
410 } | |
411 } | |
412 redisplay(data); | |
413 }, | |
650 | 414 |
668 | 415 // rotate the image |
416 rotate : function (data, angle) { | |
417 var rot = data.settings.rot; | |
418 if (angle == null) { | |
419 angle = window.prompt("Rotation angle:", rot); | |
420 } | |
421 data.settings.rot = angle; | |
422 redisplay(data); | |
423 }, | |
424 | |
425 // change brightness | |
426 brightness : function (data, factor) { | |
427 var brgt = data.settings.brgt; | |
428 if (factor == null) { | |
429 factor = window.prompt("Brightness (-255..255)", brgt); | |
430 } | |
431 data.settings.brgt = factor; | |
432 redisplay(data); | |
433 }, | |
434 | |
435 // change contrast | |
436 contrast : function (data, factor) { | |
437 var cont = data.settings.cont; | |
438 if (factor == null) { | |
439 factor = window.prompt("Contrast (-8, 8)", cont); | |
440 } | |
441 data.settings.cont = factor; | |
442 redisplay(data); | |
688 | 443 }, |
444 | |
445 reset : function (data) { | |
446 var settings = data.settings; | |
447 var paramNames = settings.digilibParamNames; | |
448 var params = data.queryParams; | |
449 resetData(data); | |
450 // delete all digilib parameters | |
451 for (var i = 0; i < paramNames.length; i++) { | |
452 var paramName = paramNames[i]; | |
453 delete settings[paramName]; | |
454 }; | |
455 // fullscreen: restore only fn/pn parameters | |
456 if (settings.interactionMode === 'fullscreen') { | |
457 settings['fn'] = params.fn; | |
458 settings['pn'] = params.pn; | |
459 // embedded: restore original parameters | |
460 } else { | |
461 $.extend(settings, params); | |
462 }; | |
463 redisplay(data); | |
668 | 464 } |
605 | 465 }; |
604 | 466 |
608 | 467 // returns parameters from page url |
607 | 468 var parseQueryParams = function() { |
636 | 469 return parseQueryString(window.location.search.slice(1)); |
470 }; | |
655 | 471 |
636 | 472 // returns parameters from embedded img-element |
607 | 473 var parseImgParams = function($elem) { |
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474 var src = $elem.find('img').first().attr('src'); |
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475 if (!src) { |
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476 return null; |
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477 } |
607 | 478 var pos = src.indexOf('?'); |
479 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
480 var scalerUrl = src.substring(0, pos); | |
627 | 481 var params = parseQueryString(query); |
482 params.scalerBaseUrl = scalerUrl; | |
483 return params; | |
636 | 484 }; |
607 | 485 |
608 | 486 // parses query parameter string into parameter object |
607 | 487 var parseQueryString = function(query) { |
488 var pairs = query.split("&"); | |
627 | 489 var params = {}; |
636 | 490 //var keys = []; |
607 | 491 for (var i = 0; i < pairs.length; i++) { |
492 var pair = pairs[i].split("="); | |
493 if (pair.length === 2) { | |
627 | 494 params[pair[0]] = pair[1]; |
636 | 495 //keys.push(pair[0]); |
634 | 496 } |
636 | 497 } |
627 | 498 return params; |
636 | 499 }; |
668 | 500 |
643 | 501 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
502 var getParamString = function (settings, keys, defaults) { | |
615 | 503 var paramString = ''; |
650 | 504 var nx = false; |
615 | 505 for (i = 0; i < keys.length; ++i) { |
506 var key = keys[i]; | |
663 | 507 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 508 // first param gets no '&' |
650 | 509 if (nx) { |
510 paramString += '&'; | |
511 } else { | |
512 nx = true; | |
513 } | |
615 | 514 // add parm=val |
515 paramString += key + '=' + settings[key]; | |
643 | 516 } |
615 | 517 } |
518 return paramString; | |
631 | 519 }; |
520 | |
636 | 521 // returns URL and query string for Scaler |
522 var getScalerUrl = function (data) { | |
653 | 523 var settings = data.settings; |
652 | 524 if (settings.scalerBaseUrl == null) { |
525 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
526 } | |
665 | 527 packParams(data); |
636 | 528 var keys = settings.scalerParamNames; |
643 | 529 var queryString = getParamString(settings, keys, defaults); |
636 | 530 var url = settings.scalerBaseUrl + '?' + queryString; |
531 return url; | |
532 }; | |
533 | |
534 // returns URL and query string for current digilib | |
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535 var getDigilibUrl = function (data) { |
643 | 536 packParams(data); |
636 | 537 var settings = data.settings; |
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538 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
636 | 539 var url = window.location.toString(); |
540 var pos = url.indexOf('?'); | |
541 var baseUrl = url.substring(0, pos); | |
542 var newurl = baseUrl + '?' + queryString; | |
543 return newurl; | |
544 }; | |
545 | |
655 | 546 // processes some parameters into objects and stuff |
631 | 547 var unpackParams = function (data) { |
548 var settings = data.settings; | |
636 | 549 // zoom area |
631 | 550 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 551 data.zoomArea = zoomArea; |
636 | 552 // marks |
631 | 553 var marks = []; |
650 | 554 if (settings.mk) { |
555 var mk = settings.mk; | |
556 if (mk.indexOf(";") >= 0) { | |
557 var pa = mk.split(";"); // old format with ";" | |
558 } else { | |
559 var pa = mk.split(","); // new format | |
560 } | |
561 for (var i = 0; i < pa.length ; i++) { | |
562 var pos = pa[i].split("/"); | |
563 if (pos.length > 1) { | |
564 marks.push(geom.position(pos[0], pos[1])); | |
565 } | |
633 | 566 } |
631 | 567 } |
643 | 568 data.marks = marks; |
650 | 569 // mo (Scaler flags) |
570 var flags = {}; | |
571 if (settings.mo) { | |
572 var pa = settings.mo.split(","); | |
573 for (var i = 0; i < pa.length ; i++) { | |
574 flags[pa[i]] = pa[i]; | |
575 } | |
576 } | |
577 data.scalerFlags = flags; | |
578 // clop (digilib options) | |
579 var opts = {}; | |
580 if (settings.clop) { | |
581 var pa = settings.clop.split(","); | |
582 for (var i = 0; i < pa.length ; i++) { | |
583 opts[pa[i]] = pa[i]; | |
584 } | |
585 } | |
586 data.dlOpts = opts; | |
661 | 587 // birdview option |
588 if (opts.birdview) { | |
589 settings.isBirdDivVisible = 1; | |
590 } | |
655 | 591 }; |
592 | |
631 | 593 // put objects back into parameters |
594 var packParams = function (data) { | |
595 var settings = data.settings; | |
636 | 596 // zoom area |
643 | 597 if (data.zoomArea) { |
647 | 598 settings.wx = cropFloat(data.zoomArea.x); |
599 settings.wy = cropFloat(data.zoomArea.y); | |
600 settings.ww = cropFloat(data.zoomArea.width); | |
601 settings.wh = cropFloat(data.zoomArea.height); | |
631 | 602 } |
636 | 603 // marks |
643 | 604 if (data.marks) { |
650 | 605 settings.mk = ''; |
643 | 606 for (var i = 0; i < data.marks.length; i++) { |
650 | 607 if (i) { |
608 settings.mk += ','; | |
609 } | |
610 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
631 | 611 } |
650 | 612 } |
613 // Scaler flags | |
614 if (data.scalerFlags) { | |
615 var mo = ''; | |
616 for (var f in data.scalerFlags) { | |
617 if (mo) { | |
618 mo += ','; | |
619 } | |
620 mo += f; | |
621 } | |
622 settings.mo = mo; | |
623 } | |
688 | 624 // digilib option birdview TODO: replace with cookie |
625 //if (settings.isBirdDivVisible) { | |
626 // data.dlOpts.birdview = 1; | |
627 //} else { | |
628 // delete data.dlOpts.birdview; | |
629 //} | |
630 | |
650 | 631 // digilib options |
632 if (data.dlOpts) { | |
633 var clop = ''; | |
634 for (var o in data.dlOpts) { | |
635 if (clop) { | |
636 clop += ','; | |
637 } | |
638 clop += o; | |
639 } | |
640 settings.clop = clop; | |
631 | 641 } |
642 }; | |
655 | 643 |
688 | 644 // clear digilib data for reset |
645 var resetData = function (data) { | |
646 if (data.zoomArea) delete data.zoomArea; | |
647 if (data.marks) delete data.marks; | |
648 if (data.scalerFlags) delete data.scalerFlags; | |
649 if (data.dlOpts) delete data.dlOpts; | |
650 }; | |
651 | |
622 | 652 // (re)load the img from a new scaler URL |
644
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653 var redisplay = function (data) { |
636 | 654 var settings = data.settings; |
655 if (settings.interactionMode === 'fullscreen') { | |
656 // update location.href (browser URL) in fullscreen mode | |
644
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657 var url = getDigilibUrl(data); |
636 | 658 var history = window.history; |
659 if (typeof(history.pushState) === 'function') { | |
660 console.debug("we could modify history, but we don't..."); | |
661 } | |
662 window.location = url; | |
663 } else { | |
664 // embedded mode -- just change img src | |
665 var url = getScalerUrl(data); | |
666 data.$img.attr('src', url); | |
677
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667 // and update bird's eye view |
678
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668 //if (settings.isBirdDivVisible) { |
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669 // renderBirdZoom(data); |
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670 //} |
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671 }; |
622 | 672 }; |
673 | |
662 | 674 // returns maximum size for scaler img in fullscreen mode |
675 var getFullscreenImgSize = function($elem) { | |
676 var $win = $(window); | |
677 var winH = $win.height(); | |
678 var winW = $win.width(); | |
679 // TODO: account for borders? | |
680 return geom.size(winW, winH); | |
681 }; | |
682 | |
608 | 683 // creates HTML structure for digilib in elem |
627 | 684 var setupScalerDiv = function (data) { |
685 var settings = data.settings; | |
647 | 686 var $elem = data.$elem; |
686 | 687 var $img, scalerUrl; |
688 // fullscreen | |
608 | 689 if (settings.interactionMode === 'fullscreen') { |
609 | 690 var imgSize = getFullscreenImgSize($elem); |
650 | 691 // fitwidth/height omits destination height/width |
692 if (data.dlOpts['fitheight'] == null) { | |
693 settings.dw = imgSize.width; | |
686 | 694 }; |
650 | 695 if (data.dlOpts['fitwidth'] == null) { |
696 settings.dh = imgSize.height; | |
686 | 697 }; |
613
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698 $img = $('<img/>'); |
686 | 699 scalerUrl = getScalerUrl(data); |
700 // embedded mode -- try to keep img tag | |
609 | 701 } else { |
623 | 702 $img = $elem.find('img'); |
613
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703 if ($img.length > 0) { |
686 | 704 console.debug("img detach:", $img); |
705 scalerUrl = $img.attr('src'); | |
613
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706 $img.detach(); |
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707 } else { |
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708 $img = $('<img/>'); |
686 | 709 scalerUrl = getScalerUrl(data); |
710 }; | |
608 | 711 } |
613
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712 // create new html |
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713 $elem.empty(); // TODO: should we keep stuff for customization? |
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714 var $scaler = $('<div class="scaler"/>'); |
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715 $elem.append($scaler); |
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716 $scaler.append($img); |
622 | 717 $img.addClass('pic'); |
649 | 718 data.$scaler = $scaler; |
636 | 719 data.$img = $img; |
687 | 720 // setup image load handler before setting the src attribute (IE bug) |
721 $img.load(scalerImgLoadedHandler(data)); | |
722 $img.attr('src', scalerUrl); | |
608 | 723 }; |
615 | 724 |
610 | 725 // creates HTML structure for buttons in elem |
682 | 726 var setupButtons = function (data, buttonSetIdx) { |
647 | 727 var $elem = data.$elem; |
628
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728 var settings = data.settings; |
665 | 729 var $buttonsDiv = $('<div class="buttons"></div>'); |
730 $elem.append($buttonsDiv); | |
731 var mode = settings.interactionMode; | |
672
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732 var buttonSettings = settings.buttonSettings[mode]; |
682 | 733 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
734 var buttonNames = buttonSettings[buttonGroup]; | |
735 for (var i = 0; i < buttonNames.length; i++) { | |
736 var buttonName = buttonNames[i]; | |
737 var buttonConfig = settings.buttons[buttonName]; | |
665 | 738 // construct the button html |
739 var $button = $('<div class="button"></div>'); | |
740 var $a = $('<a/>'); | |
741 var $img = $('<img class="button"/>'); | |
742 $buttonsDiv.append($button); | |
743 $button.append($a); | |
744 $a.append($img); | |
745 // add attributes and bindings | |
746 $button.attr('title', buttonConfig.tooltip); | |
682 | 747 $button.addClass('button-' + buttonName); |
665 | 748 // create handler for the buttons |
749 $a.bind('click.digilib', (function () { | |
750 // we create a new closure to capture the value of action | |
751 var action = buttonConfig.onclick; | |
752 if ($.isArray(action)) { | |
753 // the handler function calls digilib with action and parameters | |
754 return function (evt) { | |
755 console.debug('click action=', action, ' evt=', evt); | |
756 $elem.digilib.apply($elem, action); | |
757 return false; | |
758 }; | |
759 } else { | |
760 // the handler function calls digilib with action | |
761 return function (evt) { | |
762 console.debug('click action=', action, ' evt=', evt); | |
763 $elem.digilib(action); | |
764 return false; | |
765 }; | |
766 } | |
767 })()); | |
768 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
637 | 769 } |
662 | 770 // make buttons div scroll if too large for window |
771 if ($buttonsDiv.height() > $(window).height() - 10) { | |
772 $buttonsDiv.css('position', 'absolute'); | |
773 } | |
682 | 774 if (data.$buttonSets == null) { |
775 data.$buttonSets = [$buttonsDiv]; | |
776 data.visibleButtonSets = 1; | |
777 } else { | |
778 data.$buttonSets[buttonSetIdx] = $buttonsDiv; | |
779 } | |
612 | 780 return $buttonsDiv; |
610 | 781 }; |
615 | 782 |
783 // creates HTML structure for the bird's eye view in elem | |
638 | 784 var setupBirdDiv = function (data) { |
647 | 785 var $elem = data.$elem; |
628
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786 var settings = data.settings; |
615 | 787 // use only the relevant parameters |
788 var keys = ['fn','pn','dw','dh']; | |
674 | 789 var birdDivOptions = { |
790 dw : settings.birdDivWidth, | |
791 dh : settings.birdDivHeight | |
792 }; | |
793 var birdSettings = $.extend({}, settings, birdDivOptions); | |
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794 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
615 | 795 // the bird's eye div |
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796 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
615 | 797 // the detail indicator frame |
678
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798 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
615 | 799 // the small image |
800 var $birdImg = $('<img class="birdimg"/>'); | |
658
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801 $elem.append($birdDiv); |
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802 $birdDiv.append($birdZoom); |
658
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803 $birdDiv.append($birdImg); |
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804 $birdZoom.css(data.settings.birdIndicatorStyle); |
658
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805 data.$birdDiv = $birdDiv; |
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806 data.$birdZoom = $birdZoom; |
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807 data.$birdImg = $birdImg; |
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808 $birdImg.load(birdImgLoadedHandler(data)); |
615 | 809 $birdImg.attr('src', birdUrl); |
640
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810 if (data.settings.isBirdDivVisible) { |
687 | 811 $birdDiv.show(); |
678
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812 }; |
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813 birdZoom(data); |
640
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814 }; |
615 | 815 |
625 | 816 // creates HTML structure for the about view in elem |
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817 var setupAboutDiv = function (data) { |
647 | 818 var $elem = data.$elem; |
628
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819 var settings = data.settings; |
625 | 820 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
616 | 821 var $header = $('<p>Digilib Graphic Viewer</p>'); |
822 var $link = $('<a/>'); | |
823 var $logo = $('<img class="logo" title="digilib"/>'); | |
824 var $content = $('<p/>'); | |
825 $elem.append($aboutDiv); | |
826 $aboutDiv.append($header); | |
827 $aboutDiv.append($link); | |
828 $aboutDiv.append($content); | |
829 $link.append($logo); | |
830 $logo.attr('src', settings.logoUrl); | |
635 | 831 $link.attr('href', settings.homeUrl); |
616 | 832 $content.text('Version: ' + settings.version); |
635 | 833 // click hides |
649 | 834 $aboutDiv.bind('click.digilib', function () { |
646 | 835 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
649 | 836 return false; |
837 }); | |
635 | 838 data.$aboutDiv = $aboutDiv; |
634 | 839 }; |
840 | |
635 | 841 // shows some window e.g. 'about' (toggle visibility if show is null) |
842 var showDiv = function (isVisible, $div, show) { | |
645 | 843 if (show == null) { |
635 | 844 // toggle visibility |
845 isVisible = !isVisible; | |
846 } else { | |
847 // set visibility | |
848 isVisible = show; | |
849 } | |
850 if (isVisible) { | |
851 $div.fadeIn(); | |
852 } else { | |
853 $div.fadeOut(); | |
854 } | |
855 return isVisible; | |
634 | 856 }; |
616 | 857 |
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858 // create Transform from area and $img |
675 | 859 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
658
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860 var picrect = geom.rectangle($img); |
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861 var trafo = geom.transform(); |
675 | 862 // move zoom area offset to center |
658
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863 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
675 | 864 // scale zoom area size to [1,1] |
658
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865 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
675 | 866 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
867 if (rot || hmir || vmir) { | |
868 // move [0.5,0.5] to center | |
869 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
870 if (hmir) { | |
871 // mirror about center | |
872 trafo.concat(trafo.getMirror('y')); | |
873 } | |
874 if (vmir) { | |
875 // mirror about center | |
876 trafo.concat(trafo.getMirror('x')); | |
877 } | |
878 if (rot) { | |
879 // rotate around center | |
880 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
881 } | |
882 // move back | |
883 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
664
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884 } |
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885 // scale to screen position and size |
658
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886 trafo.concat(trafo.getScale(picrect)); |
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887 trafo.concat(trafo.getTranslation(picrect)); |
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888 return trafo; |
655 | 889 }; |
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890 |
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891 // returns function for load event of scaler img |
636 | 892 var scalerImgLoadedHandler = function (data) { |
893 var $img = data.$img; | |
633 | 894 return function () { |
627 | 895 console.debug("img loaded! this=", this, " data=", data); |
896 // create Transform from current area and picsize | |
675 | 897 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
898 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
686 | 899 console.debug("imgTrafo=", data.imgTrafo); |
627 | 900 // display marks |
633 | 901 renderMarks(data); |
627 | 902 //digilib.showArrows(); // show arrow overlays for zoom navigation |
678
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903 var $birdImg = data.$birdImg; |
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904 if ($birdImg) { |
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905 $birdImg.triggerHandler('load'); |
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906 }; |
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907 }; |
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908 }; |
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909 |
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910 // returns function for load event of bird's eye view img |
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911 var birdImgLoadedHandler = function (data) { |
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912 var $img = data.$birdImg; |
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913 return function () { |
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914 console.debug("birdimg loaded! this=", this, " data=", data); |
658
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915 // create Transform from current area and picsize |
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916 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
668 | 917 // display red indicator around zoomarea |
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918 renderbirdZoom(data); |
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919 }; |
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920 }; |
633 | 921 |
922 // place marks on the image | |
923 var renderMarks = function (data) { | |
647 | 924 var $elem = data.$elem; |
643 | 925 var marks = data.marks; |
649 | 926 // TODO: clear marks first(?) |
633 | 927 for (var i = 0; i < marks.length; i++) { |
928 var mark = marks[i]; | |
643 | 929 if (data.zoomArea.containsPosition(mark)) { |
633 | 930 var mpos = data.imgTrafo.transform(mark); |
664
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931 console.debug("renderMarks: mpos=",mpos); |
633 | 932 // create mark |
933 var html = '<div class="mark">'+(i+1)+'</div>'; | |
934 var $mark = $(html); | |
935 $elem.append($mark); | |
654 | 936 $mark.offset({left : mpos.x, top : mpos.y}); |
633 | 937 } |
938 } | |
939 }; | |
655 | 940 |
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941 // show zoom area indicator on bird's eye view |
678
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942 var renderbirdZoom = function (data) { |
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943 var $birdZoom = data.$birdZoom; |
659 | 944 var zoomArea = data.zoomArea; |
945 var indRect = data.birdTrafo.transform(zoomArea); | |
670
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946 var coords = { |
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947 left : indRect.x-2, // acount for frame width |
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948 top : indRect.y-2, |
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949 width : indRect.width, |
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950 height: indRect.height |
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951 }; |
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952 var normalSize = isFullArea(zoomArea); |
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953 if (data.settings.interactionMode === 'fullscreen') { |
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954 // no animation for fullscreen |
678
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955 if (normalSize) return $birdZoom.hide(); |
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956 $birdZoom.width(coords.width); |
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957 $birdZoom.height(coords.height); |
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958 $birdZoom.offset(coords); |
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959 $birdZoom.show(); |
670
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960 return; |
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961 }; |
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962 // nice animation for embedded mode :-) |
678
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963 var makeCompleteFunction = function($birdZoom, normalSize) { |
670
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964 return function() { |
678
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965 if (normalSize) $birdZoom.hide(); |
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966 }; |
670
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967 }; |
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968 var opts = { |
678
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969 'complete' : makeCompleteFunction($birdZoom, normalSize) |
670
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970 }; |
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971 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
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972 $birdZoom.animate(coords, opts); |
664
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973 }; |
659 | 974 |
647 | 975 // zooms by the given factor |
643 | 976 var zoomBy = function(data, factor) { |
977 var area = data.zoomArea; | |
978 var newarea = area.copy(); | |
979 // scale | |
980 newarea.width /= factor; | |
981 newarea.height /= factor; | |
982 // and recenter | |
983 newarea.x -= 0.5 * (newarea.width - area.width); | |
984 newarea.y -= 0.5 * (newarea.height - area.height); | |
985 newarea = MAX_ZOOMAREA.fit(newarea); | |
986 data.zoomArea = newarea; | |
644
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987 redisplay(data); |
643 | 988 }; |
989 | |
647 | 990 // add a mark where clicked |
991 var setMark = function (data) { | |
649 | 992 var $scaler = data.$scaler; |
647 | 993 // start event capturing |
649 | 994 $scaler.one('click.digilib', function (evt) { |
647 | 995 // event handler adding a new mark |
672
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996 var mpos = geom.position(evt); |
647 | 997 var pos = data.imgTrafo.invtransform(mpos); |
998 data.marks.push(pos); | |
999 redisplay(data); | |
649 | 1000 return false; // do we even get here? |
647 | 1001 }); |
1002 }; | |
668 | 1003 |
654 | 1004 var zoomArea = function(data) { |
1005 $elem = data.$elem; | |
1006 $scaler = data.$scaler; | |
1007 var pt1, pt2; | |
1008 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
1009 $elem.append($zoomDiv); | |
668 | 1010 $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 1011 var picRect = geom.rectangle($scaler); |
1012 // FIX ME: is there a way to query the border width from CSS info? | |
1013 // rect.x -= 2; // account for overlay borders | |
1014 // rect.y -= 2; | |
1015 | |
1016 var zoomStart = function (evt) { | |
1017 pt1 = geom.position(evt); | |
1018 // setup and show zoom div | |
1019 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
1020 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
668 | 1021 $zoomDiv.width(0).height(0); |
654 | 1022 $zoomDiv.show(); |
1023 // register events | |
1024 $elem.bind("mousemove.digilib", zoomMove); | |
1025 $elem.bind("mouseup.digilib", zoomEnd); | |
1026 return false; | |
1027 }; | |
668 | 1028 |
654 | 1029 // mouseup handler: end moving |
1030 var zoomEnd = function (evt) { | |
1031 pt2 = geom.position(evt); | |
1032 // assume a click and continue if the area is too small | |
1033 var clickRect = geom.rectangle(pt1, pt2); | |
1034 if (clickRect.getArea() <= 5) { | |
1035 return false; | |
1036 } | |
1037 // hide zoom div | |
1038 $zoomDiv.remove(); | |
1039 // unregister events | |
1040 $elem.unbind("mousemove.digilib", zoomMove); | |
1041 $elem.unbind("mouseup.digilib", zoomEnd); | |
1042 // clip and transform | |
1043 clickRect.clipTo(picRect); | |
1044 var area = data.imgTrafo.invtransform(clickRect); | |
1045 data.zoomArea = area; | |
1046 // zoomed is always fit | |
1047 data.settings.ws = 1; | |
1048 redisplay(data); | |
1049 return false; | |
1050 }; | |
668 | 1051 |
654 | 1052 // mouse move handler |
1053 var zoomMove = function (evt) { | |
1054 pt2 = geom.position(evt); | |
1055 var rect = geom.rectangle(pt1, pt2); | |
1056 rect.clipTo(picRect); | |
1057 // update zoom div | |
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1058 rect.adjustDiv($zoomDiv); |
654 | 1059 return false; |
1060 }; | |
668 | 1061 |
654 | 1062 // bind start zoom handler |
1063 $scaler.one('mousedown.digilib', zoomStart); | |
1064 }; | |
647 | 1065 |
678
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1066 var birdZoom = function(data) { |
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1067 var $birdImg = data.$birdImg; |
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1068 var $birdZoom = data.$birdZoom; |
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1069 var startPos, newRect, birdImgRect, birdZoomRect; |
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1070 |
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1071 var birdZoomMove = function(evt) { |
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1072 // mousemove handler: drag |
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1073 var pos = geom.position(evt); |
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1074 var dx = pos.x - startPos.x; |
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1075 var dy = pos.y - startPos.y; |
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1076 // move birdZoom div, keeping size |
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1077 newRect = geom.rectangle( |
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1078 birdZoomRect.x + dx, |
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1079 birdZoomRect.y + dy, |
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1080 birdZoomRect.width, |
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1081 birdZoomRect.height |
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1082 ); |
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1083 // stay within birdimage |
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1084 newRect.stayInside(birdImgRect); |
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1085 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
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1086 // $birdZoom.show(); |
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1087 return false; |
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1088 }; |
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1089 |
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1090 var birdZoomEndDrag = function(evt) { |
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1091 // mouseup handler: reload page |
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1092 var settings = data.settings; |
680 | 1093 $(document).unbind("mousemove.digilib", birdZoomMove); |
1094 $(document).unbind("mouseup.digilib", birdZoomEndDrag); | |
1095 $birdZoom.unbind("mousemove.digilib", birdZoomMove); | |
1096 $birdZoom.unbind("mouseup.digilib", birdZoomEndDrag); | |
678
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1097 if (newRect == null) { // no movement happened |
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1098 startPos = birdZoomRect.getCenter(); |
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1099 birdZoomMove(evt); // set center to click position |
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1100 }; |
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1101 if (data.zoomArea) { |
679 | 1102 // should always be true |
1103 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
1104 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
1105 data.zoomArea.x = x; | |
1106 data.zoomArea.y = y; | |
678
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1107 }; |
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1108 settings.ws = 1; // zoomed is always fit |
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1109 redisplay(data); |
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1110 return false; |
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1111 }; |
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1112 |
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1113 var birdZoomStartDrag = function(evt) { |
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1114 // mousedown handler: start dragging bird zoom to a new position |
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1115 startPos = geom.position(evt); |
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1116 birdImgRect = geom.rectangle($birdImg); |
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1117 birdZoomRect = geom.rectangle($birdZoom); |
680 | 1118 $(document).bind("mousemove.digilib", birdZoomMove); |
1119 $(document).bind("mouseup.digilib", birdZoomEndDrag); | |
1120 $birdZoom.bind("mousemove.digilib", birdZoomMove); | |
1121 $birdZoom.bind("mouseup.digilib", birdZoomEndDrag); | |
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1122 return false; |
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1123 }; |
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1124 |
681 | 1125 $birdImg.bind("mousedown.digilib", birdZoomStartDrag); |
1126 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag); | |
678
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1127 }; |
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1128 |
650 | 1129 // sets a key to a value (relative values with +/- if relative=true) |
1130 var setNumValue = function(settings, key, value) { | |
1131 if (isNumber(value)) return settings[key] = value; | |
1132 var sign = value.substring(0,1); | |
1133 if (sign === '+' || sign === '-') { | |
1134 if (settings[key] == null) { | |
651
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1135 // this isn't perfect but still... |
650 | 1136 settings[key] = 0; |
1137 } | |
1138 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
1139 } else { | |
1140 settings[key] = value; | |
1141 } | |
1142 return settings[key]; | |
1143 }; | |
655 | 1144 |
1145 // auxiliary function (from old dllib.js) | |
659 | 1146 isFullArea = function(area) { |
1147 return (area.width === 1.0) && (area.height === 1.0); | |
655 | 1148 }; |
1149 | |
641 | 1150 // auxiliary function (from Douglas Crockford, A.10) |
1151 var isNumber = function isNumber(value) { | |
1152 return typeof value === 'number' && isFinite(value); | |
1153 }; | |
655 | 1154 |
631 | 1155 // auxiliary function to crop senseless precision |
1156 var cropFloat = function (x) { | |
637 | 1157 return parseInt(10000 * x, 10) / 10000; |
631 | 1158 }; |
655 | 1159 |
605 | 1160 // hook plugin into jquery |
651
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1161 $.fn.digilib = function(action) { |
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1162 if (actions[action]) { |
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1163 // call action on this with the remaining arguments (inserting data as first argument) |
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1164 var $elem = $(this); |
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1165 var data = $elem.data('digilib'); |
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1166 var args = Array.prototype.slice.call(arguments, 1); |
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1167 args.unshift(data); |
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1168 return actions[action].apply(this, args); |
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1169 } else if (typeof(action) === 'object' || !action) { |
634 | 1170 // call init on this |
651
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1171 return actions.init.apply(this, arguments); |
605 | 1172 } else { |
651
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1173 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
605 | 1174 } |
1175 }; | |
688 | 1176 |
604 | 1177 })(jQuery); |