Mercurial > hg > digilib-old
annotate client/digitallibrary/jquery/jquery.digilib.js @ 689:f5f2b262be07 jquery
reference button plus action
author | hertzhaft |
---|---|
date | Wed, 26 Jan 2011 23:11:50 +0100 |
parents | 0235a8e63818 |
children | fe2bb8f926be |
rev | line source |
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604 | 1 /* |
2 * digilib jQuery plugin | |
3 * | |
4 */ | |
655 | 5 |
636 | 6 // fallback for console.log calls |
7 if (typeof(console) === 'undefined') { | |
8 var console = { | |
686 | 9 log : function(){ |
10 var $debug = $('#debug'); | |
11 if (!$debug) return; | |
12 var args = Array.prototype.slice.call(arguments); | |
13 var argstr = args.join(' '); | |
14 $debug.append('<div class="_log">' + argstr + '</div>'); | |
15 }, | |
16 debug : function(){ | |
17 // debug for MSIE etc | |
18 var $debug = $('#debug'); | |
19 if (!$debug) return; | |
20 var args = Array.prototype.slice.call(arguments); | |
21 var argstr = args.join(' '); | |
22 $debug.append('<div class="_debug">' + argstr + '</div>'); | |
23 }, | |
24 error : function(){ | |
25 var $debug = $('#debug'); | |
26 if (!$debug) return; | |
27 var args = Array.prototype.slice.call(arguments); | |
28 var argstr = args.join(' '); | |
29 $debug.append('<div class="_error">' + argstr + '</div>'); | |
30 } | |
636 | 31 }; |
32 } | |
604 | 33 |
34 (function($) { | |
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35 var buttons = { |
610 | 36 reference : { |
689 | 37 onclick : "reference", |
610 | 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 $.extend(settings, params); | |
462 }; | |
463 redisplay(data); | |
689 | 464 }, |
465 | |
466 reference : function (data) { | |
467 var settings = data.settings; | |
468 var url; | |
469 if (settings.interactionMode === 'fullscreen') { | |
470 url = getDigilibUrl(data); | |
471 } else { | |
472 url = getScalerUrl(data); | |
473 }; | |
474 window.prompt("URL reference to the current view", url); | |
668 | 475 } |
605 | 476 }; |
604 | 477 |
608 | 478 // returns parameters from page url |
607 | 479 var parseQueryParams = function() { |
636 | 480 return parseQueryString(window.location.search.slice(1)); |
481 }; | |
655 | 482 |
636 | 483 // returns parameters from embedded img-element |
607 | 484 var parseImgParams = function($elem) { |
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485 var src = $elem.find('img').first().attr('src'); |
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486 if (!src) { |
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487 return null; |
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488 } |
607 | 489 var pos = src.indexOf('?'); |
490 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
491 var scalerUrl = src.substring(0, pos); | |
627 | 492 var params = parseQueryString(query); |
493 params.scalerBaseUrl = scalerUrl; | |
494 return params; | |
636 | 495 }; |
607 | 496 |
608 | 497 // parses query parameter string into parameter object |
607 | 498 var parseQueryString = function(query) { |
499 var pairs = query.split("&"); | |
627 | 500 var params = {}; |
636 | 501 //var keys = []; |
607 | 502 for (var i = 0; i < pairs.length; i++) { |
503 var pair = pairs[i].split("="); | |
504 if (pair.length === 2) { | |
627 | 505 params[pair[0]] = pair[1]; |
636 | 506 //keys.push(pair[0]); |
634 | 507 } |
636 | 508 } |
627 | 509 return params; |
636 | 510 }; |
668 | 511 |
643 | 512 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
513 var getParamString = function (settings, keys, defaults) { | |
615 | 514 var paramString = ''; |
650 | 515 var nx = false; |
615 | 516 for (i = 0; i < keys.length; ++i) { |
517 var key = keys[i]; | |
663 | 518 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 519 // first param gets no '&' |
650 | 520 if (nx) { |
521 paramString += '&'; | |
522 } else { | |
523 nx = true; | |
524 } | |
615 | 525 // add parm=val |
526 paramString += key + '=' + settings[key]; | |
643 | 527 } |
615 | 528 } |
529 return paramString; | |
631 | 530 }; |
531 | |
636 | 532 // returns URL and query string for Scaler |
533 var getScalerUrl = function (data) { | |
653 | 534 var settings = data.settings; |
652 | 535 if (settings.scalerBaseUrl == null) { |
536 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
537 } | |
665 | 538 packParams(data); |
636 | 539 var keys = settings.scalerParamNames; |
643 | 540 var queryString = getParamString(settings, keys, defaults); |
636 | 541 var url = settings.scalerBaseUrl + '?' + queryString; |
542 return url; | |
543 }; | |
544 | |
545 // returns URL and query string for current digilib | |
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546 var getDigilibUrl = function (data) { |
643 | 547 packParams(data); |
636 | 548 var settings = data.settings; |
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549 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
636 | 550 var url = window.location.toString(); |
551 var pos = url.indexOf('?'); | |
552 var baseUrl = url.substring(0, pos); | |
553 var newurl = baseUrl + '?' + queryString; | |
554 return newurl; | |
555 }; | |
556 | |
655 | 557 // processes some parameters into objects and stuff |
631 | 558 var unpackParams = function (data) { |
559 var settings = data.settings; | |
636 | 560 // zoom area |
631 | 561 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 562 data.zoomArea = zoomArea; |
636 | 563 // marks |
631 | 564 var marks = []; |
650 | 565 if (settings.mk) { |
566 var mk = settings.mk; | |
567 if (mk.indexOf(";") >= 0) { | |
568 var pa = mk.split(";"); // old format with ";" | |
569 } else { | |
570 var pa = mk.split(","); // new format | |
571 } | |
572 for (var i = 0; i < pa.length ; i++) { | |
573 var pos = pa[i].split("/"); | |
574 if (pos.length > 1) { | |
575 marks.push(geom.position(pos[0], pos[1])); | |
576 } | |
633 | 577 } |
631 | 578 } |
643 | 579 data.marks = marks; |
650 | 580 // mo (Scaler flags) |
581 var flags = {}; | |
582 if (settings.mo) { | |
583 var pa = settings.mo.split(","); | |
584 for (var i = 0; i < pa.length ; i++) { | |
585 flags[pa[i]] = pa[i]; | |
586 } | |
587 } | |
588 data.scalerFlags = flags; | |
589 // clop (digilib options) | |
590 var opts = {}; | |
591 if (settings.clop) { | |
592 var pa = settings.clop.split(","); | |
593 for (var i = 0; i < pa.length ; i++) { | |
594 opts[pa[i]] = pa[i]; | |
595 } | |
596 } | |
597 data.dlOpts = opts; | |
661 | 598 // birdview option |
599 if (opts.birdview) { | |
600 settings.isBirdDivVisible = 1; | |
601 } | |
655 | 602 }; |
603 | |
631 | 604 // put objects back into parameters |
605 var packParams = function (data) { | |
606 var settings = data.settings; | |
636 | 607 // zoom area |
643 | 608 if (data.zoomArea) { |
647 | 609 settings.wx = cropFloat(data.zoomArea.x); |
610 settings.wy = cropFloat(data.zoomArea.y); | |
611 settings.ww = cropFloat(data.zoomArea.width); | |
612 settings.wh = cropFloat(data.zoomArea.height); | |
631 | 613 } |
636 | 614 // marks |
643 | 615 if (data.marks) { |
650 | 616 settings.mk = ''; |
643 | 617 for (var i = 0; i < data.marks.length; i++) { |
650 | 618 if (i) { |
619 settings.mk += ','; | |
620 } | |
621 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
631 | 622 } |
650 | 623 } |
624 // Scaler flags | |
625 if (data.scalerFlags) { | |
626 var mo = ''; | |
627 for (var f in data.scalerFlags) { | |
628 if (mo) { | |
629 mo += ','; | |
630 } | |
631 mo += f; | |
632 } | |
633 settings.mo = mo; | |
634 } | |
688 | 635 // digilib option birdview TODO: replace with cookie |
636 //if (settings.isBirdDivVisible) { | |
637 // data.dlOpts.birdview = 1; | |
638 //} else { | |
639 // delete data.dlOpts.birdview; | |
640 //} | |
641 | |
650 | 642 // digilib options |
643 if (data.dlOpts) { | |
644 var clop = ''; | |
645 for (var o in data.dlOpts) { | |
646 if (clop) { | |
647 clop += ','; | |
648 } | |
649 clop += o; | |
650 } | |
651 settings.clop = clop; | |
631 | 652 } |
653 }; | |
655 | 654 |
688 | 655 // clear digilib data for reset |
656 var resetData = function (data) { | |
657 if (data.zoomArea) delete data.zoomArea; | |
658 if (data.marks) delete data.marks; | |
659 if (data.scalerFlags) delete data.scalerFlags; | |
660 if (data.dlOpts) delete data.dlOpts; | |
661 }; | |
662 | |
622 | 663 // (re)load the img from a new scaler URL |
644
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664 var redisplay = function (data) { |
636 | 665 var settings = data.settings; |
666 if (settings.interactionMode === 'fullscreen') { | |
667 // update location.href (browser URL) in fullscreen mode | |
644
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668 var url = getDigilibUrl(data); |
636 | 669 var history = window.history; |
670 if (typeof(history.pushState) === 'function') { | |
671 console.debug("we could modify history, but we don't..."); | |
672 } | |
673 window.location = url; | |
674 } else { | |
675 // embedded mode -- just change img src | |
676 var url = getScalerUrl(data); | |
677 data.$img.attr('src', url); | |
677
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678 // and update bird's eye view |
678
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679 //if (settings.isBirdDivVisible) { |
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680 // renderBirdZoom(data); |
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681 //} |
677
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682 }; |
622 | 683 }; |
684 | |
662 | 685 // returns maximum size for scaler img in fullscreen mode |
686 var getFullscreenImgSize = function($elem) { | |
687 var $win = $(window); | |
688 var winH = $win.height(); | |
689 var winW = $win.width(); | |
690 // TODO: account for borders? | |
691 return geom.size(winW, winH); | |
692 }; | |
693 | |
608 | 694 // creates HTML structure for digilib in elem |
627 | 695 var setupScalerDiv = function (data) { |
696 var settings = data.settings; | |
647 | 697 var $elem = data.$elem; |
686 | 698 var $img, scalerUrl; |
699 // fullscreen | |
608 | 700 if (settings.interactionMode === 'fullscreen') { |
609 | 701 var imgSize = getFullscreenImgSize($elem); |
650 | 702 // fitwidth/height omits destination height/width |
703 if (data.dlOpts['fitheight'] == null) { | |
704 settings.dw = imgSize.width; | |
686 | 705 }; |
650 | 706 if (data.dlOpts['fitwidth'] == null) { |
707 settings.dh = imgSize.height; | |
686 | 708 }; |
613
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709 $img = $('<img/>'); |
686 | 710 scalerUrl = getScalerUrl(data); |
711 // embedded mode -- try to keep img tag | |
609 | 712 } else { |
623 | 713 $img = $elem.find('img'); |
613
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714 if ($img.length > 0) { |
686 | 715 console.debug("img detach:", $img); |
716 scalerUrl = $img.attr('src'); | |
613
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717 $img.detach(); |
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718 } else { |
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719 $img = $('<img/>'); |
686 | 720 scalerUrl = getScalerUrl(data); |
721 }; | |
608 | 722 } |
613
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723 // create new html |
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724 $elem.empty(); // TODO: should we keep stuff for customization? |
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725 var $scaler = $('<div class="scaler"/>'); |
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726 $elem.append($scaler); |
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727 $scaler.append($img); |
622 | 728 $img.addClass('pic'); |
649 | 729 data.$scaler = $scaler; |
636 | 730 data.$img = $img; |
687 | 731 // setup image load handler before setting the src attribute (IE bug) |
732 $img.load(scalerImgLoadedHandler(data)); | |
733 $img.attr('src', scalerUrl); | |
608 | 734 }; |
615 | 735 |
610 | 736 // creates HTML structure for buttons in elem |
682 | 737 var setupButtons = function (data, buttonSetIdx) { |
647 | 738 var $elem = data.$elem; |
628
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739 var settings = data.settings; |
665 | 740 var $buttonsDiv = $('<div class="buttons"></div>'); |
741 $elem.append($buttonsDiv); | |
742 var mode = settings.interactionMode; | |
672
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743 var buttonSettings = settings.buttonSettings[mode]; |
682 | 744 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
745 var buttonNames = buttonSettings[buttonGroup]; | |
746 for (var i = 0; i < buttonNames.length; i++) { | |
747 var buttonName = buttonNames[i]; | |
748 var buttonConfig = settings.buttons[buttonName]; | |
665 | 749 // construct the button html |
750 var $button = $('<div class="button"></div>'); | |
751 var $a = $('<a/>'); | |
752 var $img = $('<img class="button"/>'); | |
753 $buttonsDiv.append($button); | |
754 $button.append($a); | |
755 $a.append($img); | |
756 // add attributes and bindings | |
757 $button.attr('title', buttonConfig.tooltip); | |
682 | 758 $button.addClass('button-' + buttonName); |
665 | 759 // create handler for the buttons |
760 $a.bind('click.digilib', (function () { | |
761 // we create a new closure to capture the value of action | |
762 var action = buttonConfig.onclick; | |
763 if ($.isArray(action)) { | |
764 // the handler function calls digilib with action and parameters | |
765 return function (evt) { | |
766 console.debug('click action=', action, ' evt=', evt); | |
767 $elem.digilib.apply($elem, action); | |
768 return false; | |
769 }; | |
770 } else { | |
771 // the handler function calls digilib with action | |
772 return function (evt) { | |
773 console.debug('click action=', action, ' evt=', evt); | |
774 $elem.digilib(action); | |
775 return false; | |
776 }; | |
777 } | |
778 })()); | |
779 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
637 | 780 } |
662 | 781 // make buttons div scroll if too large for window |
782 if ($buttonsDiv.height() > $(window).height() - 10) { | |
783 $buttonsDiv.css('position', 'absolute'); | |
784 } | |
682 | 785 if (data.$buttonSets == null) { |
786 data.$buttonSets = [$buttonsDiv]; | |
787 data.visibleButtonSets = 1; | |
788 } else { | |
789 data.$buttonSets[buttonSetIdx] = $buttonsDiv; | |
790 } | |
612 | 791 return $buttonsDiv; |
610 | 792 }; |
615 | 793 |
794 // creates HTML structure for the bird's eye view in elem | |
638 | 795 var setupBirdDiv = function (data) { |
647 | 796 var $elem = data.$elem; |
628
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797 var settings = data.settings; |
615 | 798 // use only the relevant parameters |
799 var keys = ['fn','pn','dw','dh']; | |
674 | 800 var birdDivOptions = { |
801 dw : settings.birdDivWidth, | |
802 dh : settings.birdDivHeight | |
803 }; | |
804 var birdSettings = $.extend({}, settings, birdDivOptions); | |
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805 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
615 | 806 // the bird's eye div |
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807 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
615 | 808 // the detail indicator frame |
678
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809 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
615 | 810 // the small image |
811 var $birdImg = $('<img class="birdimg"/>'); | |
658
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812 $elem.append($birdDiv); |
678
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813 $birdDiv.append($birdZoom); |
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814 $birdDiv.append($birdImg); |
678
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815 $birdZoom.css(data.settings.birdIndicatorStyle); |
658
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816 data.$birdDiv = $birdDiv; |
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817 data.$birdZoom = $birdZoom; |
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818 data.$birdImg = $birdImg; |
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819 $birdImg.load(birdImgLoadedHandler(data)); |
615 | 820 $birdImg.attr('src', birdUrl); |
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821 if (data.settings.isBirdDivVisible) { |
687 | 822 $birdDiv.show(); |
678
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823 }; |
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824 birdZoom(data); |
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825 }; |
615 | 826 |
625 | 827 // creates HTML structure for the about view in elem |
628
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828 var setupAboutDiv = function (data) { |
647 | 829 var $elem = data.$elem; |
628
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830 var settings = data.settings; |
625 | 831 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
616 | 832 var $header = $('<p>Digilib Graphic Viewer</p>'); |
833 var $link = $('<a/>'); | |
834 var $logo = $('<img class="logo" title="digilib"/>'); | |
835 var $content = $('<p/>'); | |
836 $elem.append($aboutDiv); | |
837 $aboutDiv.append($header); | |
838 $aboutDiv.append($link); | |
839 $aboutDiv.append($content); | |
840 $link.append($logo); | |
841 $logo.attr('src', settings.logoUrl); | |
635 | 842 $link.attr('href', settings.homeUrl); |
616 | 843 $content.text('Version: ' + settings.version); |
635 | 844 // click hides |
649 | 845 $aboutDiv.bind('click.digilib', function () { |
646 | 846 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
649 | 847 return false; |
848 }); | |
635 | 849 data.$aboutDiv = $aboutDiv; |
634 | 850 }; |
851 | |
635 | 852 // shows some window e.g. 'about' (toggle visibility if show is null) |
853 var showDiv = function (isVisible, $div, show) { | |
645 | 854 if (show == null) { |
635 | 855 // toggle visibility |
856 isVisible = !isVisible; | |
857 } else { | |
858 // set visibility | |
859 isVisible = show; | |
860 } | |
861 if (isVisible) { | |
862 $div.fadeIn(); | |
863 } else { | |
864 $div.fadeOut(); | |
865 } | |
866 return isVisible; | |
634 | 867 }; |
616 | 868 |
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869 // create Transform from area and $img |
675 | 870 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
658
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871 var picrect = geom.rectangle($img); |
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872 var trafo = geom.transform(); |
675 | 873 // move zoom area offset to center |
658
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874 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
675 | 875 // scale zoom area size to [1,1] |
658
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876 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
675 | 877 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
878 if (rot || hmir || vmir) { | |
879 // move [0.5,0.5] to center | |
880 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
881 if (hmir) { | |
882 // mirror about center | |
883 trafo.concat(trafo.getMirror('y')); | |
884 } | |
885 if (vmir) { | |
886 // mirror about center | |
887 trafo.concat(trafo.getMirror('x')); | |
888 } | |
889 if (rot) { | |
890 // rotate around center | |
891 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
892 } | |
893 // move back | |
894 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
664
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895 } |
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896 // scale to screen position and size |
658
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897 trafo.concat(trafo.getScale(picrect)); |
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898 trafo.concat(trafo.getTranslation(picrect)); |
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899 return trafo; |
655 | 900 }; |
678
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901 |
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902 // returns function for load event of scaler img |
636 | 903 var scalerImgLoadedHandler = function (data) { |
904 var $img = data.$img; | |
633 | 905 return function () { |
627 | 906 console.debug("img loaded! this=", this, " data=", data); |
907 // create Transform from current area and picsize | |
675 | 908 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
909 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
686 | 910 console.debug("imgTrafo=", data.imgTrafo); |
627 | 911 // display marks |
633 | 912 renderMarks(data); |
627 | 913 //digilib.showArrows(); // show arrow overlays for zoom navigation |
678
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914 var $birdImg = data.$birdImg; |
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915 if ($birdImg) { |
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916 $birdImg.triggerHandler('load'); |
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917 }; |
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918 }; |
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919 }; |
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920 |
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921 // returns function for load event of bird's eye view img |
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922 var birdImgLoadedHandler = function (data) { |
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923 var $img = data.$birdImg; |
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924 return function () { |
677
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925 console.debug("birdimg loaded! this=", this, " data=", data); |
658
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926 // create Transform from current area and picsize |
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927 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
668 | 928 // display red indicator around zoomarea |
678
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929 renderbirdZoom(data); |
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930 }; |
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931 }; |
633 | 932 |
933 // place marks on the image | |
934 var renderMarks = function (data) { | |
647 | 935 var $elem = data.$elem; |
643 | 936 var marks = data.marks; |
649 | 937 // TODO: clear marks first(?) |
633 | 938 for (var i = 0; i < marks.length; i++) { |
939 var mark = marks[i]; | |
643 | 940 if (data.zoomArea.containsPosition(mark)) { |
633 | 941 var mpos = data.imgTrafo.transform(mark); |
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942 console.debug("renderMarks: mpos=",mpos); |
633 | 943 // create mark |
944 var html = '<div class="mark">'+(i+1)+'</div>'; | |
945 var $mark = $(html); | |
946 $elem.append($mark); | |
654 | 947 $mark.offset({left : mpos.x, top : mpos.y}); |
633 | 948 } |
949 } | |
950 }; | |
655 | 951 |
677
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952 // show zoom area indicator on bird's eye view |
678
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953 var renderbirdZoom = function (data) { |
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954 var $birdZoom = data.$birdZoom; |
659 | 955 var zoomArea = data.zoomArea; |
956 var indRect = data.birdTrafo.transform(zoomArea); | |
670
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957 var coords = { |
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958 left : indRect.x-2, // acount for frame width |
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959 top : indRect.y-2, |
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960 width : indRect.width, |
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961 height: indRect.height |
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962 }; |
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963 var normalSize = isFullArea(zoomArea); |
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964 if (data.settings.interactionMode === 'fullscreen') { |
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965 // no animation for fullscreen |
678
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966 if (normalSize) return $birdZoom.hide(); |
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967 $birdZoom.width(coords.width); |
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968 $birdZoom.height(coords.height); |
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969 $birdZoom.offset(coords); |
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970 $birdZoom.show(); |
670
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971 return; |
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972 }; |
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973 // nice animation for embedded mode :-) |
678
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974 var makeCompleteFunction = function($birdZoom, normalSize) { |
670
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975 return function() { |
678
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976 if (normalSize) $birdZoom.hide(); |
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977 }; |
670
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978 }; |
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979 var opts = { |
678
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980 'complete' : makeCompleteFunction($birdZoom, normalSize) |
670
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981 }; |
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982 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
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983 $birdZoom.animate(coords, opts); |
664
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984 }; |
659 | 985 |
647 | 986 // zooms by the given factor |
643 | 987 var zoomBy = function(data, factor) { |
988 var area = data.zoomArea; | |
989 var newarea = area.copy(); | |
990 // scale | |
991 newarea.width /= factor; | |
992 newarea.height /= factor; | |
993 // and recenter | |
994 newarea.x -= 0.5 * (newarea.width - area.width); | |
995 newarea.y -= 0.5 * (newarea.height - area.height); | |
996 newarea = MAX_ZOOMAREA.fit(newarea); | |
997 data.zoomArea = newarea; | |
644
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998 redisplay(data); |
643 | 999 }; |
1000 | |
647 | 1001 // add a mark where clicked |
1002 var setMark = function (data) { | |
649 | 1003 var $scaler = data.$scaler; |
647 | 1004 // start event capturing |
649 | 1005 $scaler.one('click.digilib', function (evt) { |
647 | 1006 // event handler adding a new mark |
672
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1007 var mpos = geom.position(evt); |
647 | 1008 var pos = data.imgTrafo.invtransform(mpos); |
1009 data.marks.push(pos); | |
1010 redisplay(data); | |
649 | 1011 return false; // do we even get here? |
647 | 1012 }); |
1013 }; | |
668 | 1014 |
654 | 1015 var zoomArea = function(data) { |
1016 $elem = data.$elem; | |
1017 $scaler = data.$scaler; | |
1018 var pt1, pt2; | |
1019 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
1020 $elem.append($zoomDiv); | |
668 | 1021 $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 1022 var picRect = geom.rectangle($scaler); |
1023 // FIX ME: is there a way to query the border width from CSS info? | |
1024 // rect.x -= 2; // account for overlay borders | |
1025 // rect.y -= 2; | |
1026 | |
1027 var zoomStart = function (evt) { | |
1028 pt1 = geom.position(evt); | |
1029 // setup and show zoom div | |
1030 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
1031 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
668 | 1032 $zoomDiv.width(0).height(0); |
654 | 1033 $zoomDiv.show(); |
1034 // register events | |
1035 $elem.bind("mousemove.digilib", zoomMove); | |
1036 $elem.bind("mouseup.digilib", zoomEnd); | |
1037 return false; | |
1038 }; | |
668 | 1039 |
654 | 1040 // mouseup handler: end moving |
1041 var zoomEnd = function (evt) { | |
1042 pt2 = geom.position(evt); | |
1043 // assume a click and continue if the area is too small | |
1044 var clickRect = geom.rectangle(pt1, pt2); | |
1045 if (clickRect.getArea() <= 5) { | |
1046 return false; | |
1047 } | |
1048 // hide zoom div | |
1049 $zoomDiv.remove(); | |
1050 // unregister events | |
1051 $elem.unbind("mousemove.digilib", zoomMove); | |
1052 $elem.unbind("mouseup.digilib", zoomEnd); | |
1053 // clip and transform | |
1054 clickRect.clipTo(picRect); | |
1055 var area = data.imgTrafo.invtransform(clickRect); | |
1056 data.zoomArea = area; | |
1057 // zoomed is always fit | |
1058 data.settings.ws = 1; | |
1059 redisplay(data); | |
1060 return false; | |
1061 }; | |
668 | 1062 |
654 | 1063 // mouse move handler |
1064 var zoomMove = function (evt) { | |
1065 pt2 = geom.position(evt); | |
1066 var rect = geom.rectangle(pt1, pt2); | |
1067 rect.clipTo(picRect); | |
1068 // update zoom div | |
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1069 rect.adjustDiv($zoomDiv); |
654 | 1070 return false; |
1071 }; | |
668 | 1072 |
654 | 1073 // bind start zoom handler |
1074 $scaler.one('mousedown.digilib', zoomStart); | |
1075 }; | |
647 | 1076 |
678
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1077 var birdZoom = function(data) { |
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1078 var $birdImg = data.$birdImg; |
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1079 var $birdZoom = data.$birdZoom; |
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1080 var startPos, newRect, birdImgRect, birdZoomRect; |
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1081 |
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1082 var birdZoomMove = function(evt) { |
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1083 // mousemove handler: drag |
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1084 var pos = geom.position(evt); |
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1085 var dx = pos.x - startPos.x; |
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1086 var dy = pos.y - startPos.y; |
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1087 // move birdZoom div, keeping size |
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1088 newRect = geom.rectangle( |
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1089 birdZoomRect.x + dx, |
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1090 birdZoomRect.y + dy, |
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1091 birdZoomRect.width, |
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1092 birdZoomRect.height |
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1093 ); |
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1094 // stay within birdimage |
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1095 newRect.stayInside(birdImgRect); |
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1096 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
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1097 // $birdZoom.show(); |
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1098 return false; |
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|
1099 }; |
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1100 |
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1101 var birdZoomEndDrag = function(evt) { |
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1102 // mouseup handler: reload page |
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1103 var settings = data.settings; |
680 | 1104 $(document).unbind("mousemove.digilib", birdZoomMove); |
1105 $(document).unbind("mouseup.digilib", birdZoomEndDrag); | |
1106 $birdZoom.unbind("mousemove.digilib", birdZoomMove); | |
1107 $birdZoom.unbind("mouseup.digilib", birdZoomEndDrag); | |
678
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1108 if (newRect == null) { // no movement happened |
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1109 startPos = birdZoomRect.getCenter(); |
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1110 birdZoomMove(evt); // set center to click position |
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|
1111 }; |
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1112 if (data.zoomArea) { |
679 | 1113 // should always be true |
1114 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
1115 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
1116 data.zoomArea.x = x; | |
1117 data.zoomArea.y = y; | |
678
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1118 }; |
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1119 settings.ws = 1; // zoomed is always fit |
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1120 redisplay(data); |
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1121 return false; |
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1122 }; |
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1123 |
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1124 var birdZoomStartDrag = function(evt) { |
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1125 // mousedown handler: start dragging bird zoom to a new position |
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1126 startPos = geom.position(evt); |
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1127 birdImgRect = geom.rectangle($birdImg); |
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1128 birdZoomRect = geom.rectangle($birdZoom); |
680 | 1129 $(document).bind("mousemove.digilib", birdZoomMove); |
1130 $(document).bind("mouseup.digilib", birdZoomEndDrag); | |
1131 $birdZoom.bind("mousemove.digilib", birdZoomMove); | |
1132 $birdZoom.bind("mouseup.digilib", birdZoomEndDrag); | |
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1133 return false; |
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1134 }; |
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1135 |
681 | 1136 $birdImg.bind("mousedown.digilib", birdZoomStartDrag); |
1137 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag); | |
678
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1138 }; |
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1139 |
650 | 1140 // sets a key to a value (relative values with +/- if relative=true) |
1141 var setNumValue = function(settings, key, value) { | |
1142 if (isNumber(value)) return settings[key] = value; | |
1143 var sign = value.substring(0,1); | |
1144 if (sign === '+' || sign === '-') { | |
1145 if (settings[key] == null) { | |
651
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1146 // this isn't perfect but still... |
650 | 1147 settings[key] = 0; |
1148 } | |
1149 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
1150 } else { | |
1151 settings[key] = value; | |
1152 } | |
1153 return settings[key]; | |
1154 }; | |
655 | 1155 |
1156 // auxiliary function (from old dllib.js) | |
659 | 1157 isFullArea = function(area) { |
1158 return (area.width === 1.0) && (area.height === 1.0); | |
655 | 1159 }; |
1160 | |
641 | 1161 // auxiliary function (from Douglas Crockford, A.10) |
1162 var isNumber = function isNumber(value) { | |
1163 return typeof value === 'number' && isFinite(value); | |
1164 }; | |
655 | 1165 |
631 | 1166 // auxiliary function to crop senseless precision |
1167 var cropFloat = function (x) { | |
637 | 1168 return parseInt(10000 * x, 10) / 10000; |
631 | 1169 }; |
655 | 1170 |
605 | 1171 // hook plugin into jquery |
651
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1172 $.fn.digilib = function(action) { |
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1173 if (actions[action]) { |
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1174 // call action on this with the remaining arguments (inserting data as first argument) |
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1175 var $elem = $(this); |
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1176 var data = $elem.data('digilib'); |
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1177 var args = Array.prototype.slice.call(arguments, 1); |
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1178 args.unshift(data); |
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1179 return actions[action].apply(this, args); |
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1180 } else if (typeof(action) === 'object' || !action) { |
634 | 1181 // call init on this |
651
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1182 return actions.init.apply(this, arguments); |
605 | 1183 } else { |
651
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1184 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
605 | 1185 } |
1186 }; | |
688 | 1187 |
604 | 1188 })(jQuery); |