Mercurial > hg > digilib-old
annotate client/digitallibrary/jquery/jquery.digilib.js @ 698:215ef40435c8 jquery
took out toggle more-or-less-buttons due to collisions with new buttonset code.
merge with e05c60578bff610f3b85a19a4309842bf7cded1c
author | robcast |
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date | Thu, 27 Jan 2011 16:59:10 +0100 |
parents | f60a45e7abb3 e05c60578bff |
children | 09f61af0a6dd |
rev | line source |
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604 | 1 /* |
2 * digilib jQuery plugin | |
3 * | |
4 */ | |
655 | 5 |
636 | 6 // fallback for console.log calls |
7 if (typeof(console) === 'undefined') { | |
8 var console = { | |
692 | 9 log : function(){}, |
10 debug : function(){}, | |
11 error : function(){} | |
12 }; | |
13 var customConsole = true; | |
14 }; | |
604 | 15 |
16 (function($) { | |
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17 var buttons = { |
610 | 18 reference : { |
689 | 19 onclick : "reference", |
610 | 20 tooltip : "get a reference URL", |
21 img : "reference.png" | |
22 }, | |
23 zoomin : { | |
643 | 24 onclick : ["zoomBy", 1.4], |
610 | 25 tooltip : "zoom in", |
26 img : "zoom-in.png" | |
27 }, | |
28 zoomout : { | |
643 | 29 onclick : ["zoomBy", 0.7], |
610 | 30 tooltip : "zoom out", |
31 img : "zoom-out.png" | |
32 }, | |
33 zoomarea : { | |
654 | 34 onclick : "zoomArea", |
610 | 35 tooltip : "zoom area", |
36 img : "zoom-area.png" | |
37 }, | |
38 zoomfull : { | |
650 | 39 onclick : "zoomFull", |
610 | 40 tooltip : "view the whole image", |
41 img : "zoom-full.png" | |
42 }, | |
43 pagewidth : { | |
650 | 44 onclick : ["zoomFull", "width"], |
610 | 45 tooltip : "page width", |
46 img : "pagewidth.png" | |
47 }, | |
48 back : { | |
623 | 49 onclick : ["gotoPage", "-1"], |
610 | 50 tooltip : "goto previous image", |
51 img : "back.png" | |
52 }, | |
53 fwd : { | |
623 | 54 onclick : ["gotoPage", "+1"], |
610 | 55 tooltip : "goto next image", |
56 img : "fwd.png" | |
57 }, | |
58 page : { | |
59 onclick : "javascript:gotoPageWin()", | |
60 tooltip : "specify image", | |
61 img : "page.png" | |
62 }, | |
63 bird : { | |
635 | 64 onclick : "showBirdDiv", |
610 | 65 tooltip : "show bird's eye view", |
66 img : "birds-eye.png" | |
67 }, | |
68 help : { | |
635 | 69 onclick : "showAboutDiv", |
610 | 70 tooltip : "about Digilib", |
71 img : "help.png" | |
72 }, | |
73 reset : { | |
688 | 74 onclick : "reset", |
610 | 75 tooltip : "reset image", |
76 img : "reset.png" | |
77 }, | |
78 mark : { | |
647 | 79 onclick : "setMark", |
610 | 80 tooltip : "set a mark", |
81 img : "mark.png" | |
82 }, | |
83 delmark : { | |
650 | 84 onclick : "removeMark", |
610 | 85 tooltip : "delete the last mark", |
86 img : "delmark.png" | |
87 }, | |
88 hmir : { | |
661 | 89 onclick : ["mirror", "h"], |
610 | 90 tooltip : "mirror horizontally", |
91 img : "mirror-horizontal.png" | |
92 }, | |
93 vmir : { | |
661 | 94 onclick : ["mirror", "v"], |
610 | 95 tooltip : "mirror vertically", |
96 img : "mirror-vertical.png" | |
97 }, | |
98 rot : { | |
663 | 99 onclick : "rotate", |
610 | 100 tooltip : "rotate image", |
101 img : "rotate.png" | |
102 }, | |
103 brgt : { | |
663 | 104 onclick : "brightness", |
610 | 105 tooltip : "set brightness", |
106 img : "brightness.png" | |
107 }, | |
108 cont : { | |
663 | 109 onclick : "contrast", |
610 | 110 tooltip : "set contrast", |
111 img : "contrast.png" | |
112 }, | |
113 rgb : { | |
114 onclick : "javascript:setParamWin('rgb', '...')", | |
115 tooltip : "set rgb values", | |
116 img : "rgb.png" | |
117 }, | |
118 quality : { | |
119 onclick : "javascript:setQualityWin('Quality (0..2)')", | |
120 tooltip : "set image quality", | |
121 img : "quality.png" | |
122 }, | |
123 size : { | |
124 onclick : "javascript:toggleSizeMenu()", | |
125 tooltip : "set page size", | |
126 img : "size.png" | |
127 }, | |
128 calibrationx : { | |
129 onclick : "javascript:calibrate('x')", | |
130 tooltip : "calibrate screen x-ratio", | |
131 img : "calibration-x.png" | |
132 }, | |
133 scale : { | |
134 onclick : "javascript:toggleScaleMenu()", | |
135 tooltip : "change image scale", | |
136 img : "original-size.png" | |
137 }, | |
690 | 138 moreoptions : { |
139 onclick : ["morebuttons", "+1"], | |
140 tooltip : "more options", | |
141 img : "options.png" | |
142 }, | |
143 lessoptions : { | |
144 onclick : ["morebuttons", "-1"], | |
145 tooltip : "less options", | |
610 | 146 img : "options.png" |
147 }, | |
148 SEP : { | |
149 img : "sep.png" | |
150 } | |
151 }; | |
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152 |
605 | 153 var defaults = { |
616 | 154 // version of this script |
635 | 155 'version' : 'jquery.digilib.js 0.9', |
616 | 156 // logo url |
157 'logoUrl' : '../img/digilib-logo-text1.png', | |
635 | 158 // homepage url (behind logo) |
159 'homeUrl' : 'http://digilib.berlios.de', | |
610 | 160 // base URL to Scaler servlet |
652 | 161 'scalerBaseUrl' : null, |
610 | 162 // list of Scaler parameters |
627 | 163 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
164 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
165 // Scaler parameter defaults | |
643 | 166 'pn' : 1, |
627 | 167 'ww' : 1.0, |
168 'wh' : 1.0, | |
169 'wx' : 0.0, | |
170 'wy' : 0.0, | |
171 'ws' : 1.0, | |
643 | 172 'mo' : '', |
173 'rot' : 0, | |
174 'cont' : 0, | |
175 'brgt' : 0, | |
176 'rgbm' : '0/0/0', | |
177 'rgba' : '0/0/0', | |
178 'ddpi' : null, | |
179 'ddpix' : null, | |
180 'ddpiy' : null, | |
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181 // list of digilib parameters |
650 | 182 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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183 // digilib parameter defaults |
643 | 184 'mk' : '', |
650 | 185 'clop' : '', |
643 | 186 // mode of operation: |
187 // fullscreen = take parameters from page URL, keep state in page URL | |
188 // embedded = take parameters from Javascript options, keep state inside object | |
610 | 189 'interactionMode' : 'fullscreen', |
651
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190 // buttons |
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191 'buttons' : buttons, |
668 | 192 // defaults for digilib buttons |
665 | 193 'buttonSettings' : { |
194 'fullscreen' : { | |
668 | 195 // path to button images (must end with a slash) |
665 | 196 'imagePath' : 'img/fullscreen/', |
690 | 197 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","moreoptions"], |
198 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","lessoptions"], | |
682 | 199 'buttonSets' : ['standardSet', 'specialSet'] |
665 | 200 }, |
201 'embedded' : { | |
202 'imagePath' : 'img/embedded/16/', | |
693 | 203 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","back","fwd","page","bird","SEP","help","reset","moreoptions"], |
204 'specialSet' : ["hmir","vmir","rot","brgt","cont","rgb","quality","size","SEP","lessoptions"], | |
682 | 205 'buttonSets' : ['standardSet', 'specialSet'] |
665 | 206 } |
697 | 207 }, |
208 // number of visible button groups | |
209 'visibleButtonSets' : 1, | |
616 | 210 // is birdView shown? |
211 'isBirdDivVisible' : false, | |
668 | 212 // dimensions of bird's eye div |
674 | 213 'birdDivWidth' : 200, |
214 'birdDivHeight' : 200, | |
668 | 215 // style of the zoom area indicator in the bird's eye div |
659 | 216 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
668 | 217 // style of zoom area "rubber band" |
218 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
616 | 219 // is the "about" window shown? |
220 'isAboutDivVisible' : false | |
221 | |
610 | 222 }; |
655 | 223 |
608 | 224 // affine geometry classes |
225 var geom = dlGeometry(); | |
655 | 226 |
643 | 227 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
655 | 228 |
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229 var actions = { |
668 | 230 // init: digilib initialization |
231 init : function(options) { | |
232 // settings for this digilib instance are merged from defaults and options | |
233 var settings = $.extend({}, defaults, options); | |
234 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
235 var queryParams = {}; | |
236 if (isFullscreen) { | |
237 queryParams = parseQueryParams(); | |
238 // check scalerBaseUrl | |
239 if (settings.scalerBaseUrl == null) { | |
240 // try the host this came from | |
241 var h = window.location.host; | |
242 if (window.location.host) { | |
243 var url = window.location.href; | |
244 // assume the page lives in [webapp]/jquery/ | |
245 var pos = url.indexOf('jquery/'); | |
246 if (pos > 0) { | |
247 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
652 | 248 } |
249 } | |
636 | 250 } |
668 | 251 } |
252 return this.each(function() { | |
253 var $elem = $(this); | |
254 var data = $elem.data('digilib'); | |
688 | 255 var params, elemSettings; |
668 | 256 // if the plugin hasn't been initialized yet |
257 if (!data) { | |
258 // merge query parameters | |
259 if (isFullscreen) { | |
688 | 260 params = queryParams; |
668 | 261 } else { |
688 | 262 params = parseImgParams($elem); |
263 }; | |
668 | 264 // store $(this) element in the settings |
688 | 265 elemSettings = $.extend({}, settings, params); |
697 | 266 data = { |
668 | 267 $elem : $elem, |
268 settings : elemSettings, | |
688 | 269 queryParams : params |
668 | 270 }; |
271 // store in data element | |
272 $elem.data('digilib', data); | |
273 } | |
274 unpackParams(data); | |
682 | 275 // create HTML structure for scaler |
668 | 276 setupScalerDiv(data); |
697 | 277 // add buttons |
278 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { | |
279 showButtons(data, true, i); | |
280 } | |
668 | 281 // bird's eye view creation |
282 if (elemSettings.isBirdDivVisible) { | |
638 | 283 setupBirdDiv(data); |
284 } | |
668 | 285 // about window creation - TODO: could be deferred? restrict to only one item? |
286 setupAboutDiv(data); | |
287 }); | |
288 }, | |
289 | |
290 // destroy: clean up digilib | |
291 destroy : function(data) { | |
292 return this.each(function(){ | |
293 var $elem = $(this); | |
294 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
295 data.digilib.remove(); | |
296 $elem.removeData('digilib'); | |
297 }); | |
298 }, | |
299 | |
300 // show or hide the 'about' window | |
301 showAboutDiv : function(data, show) { | |
302 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
303 }, | |
655 | 304 |
668 | 305 // event handler: toggles the visibility of the bird's eye window |
306 showBirdDiv : function (data, show) { | |
307 if (data.$birdDiv == null) { | |
308 // no bird div -> create | |
309 setupBirdDiv(data); | |
310 } | |
311 // TODO: keep bird view visible after reload (parameter, cookie?) | |
312 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
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313 cookie(data, 'birdview', data.settings.isBirdDivVisible ? "1" : "0"); |
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314 data.$birdImg.triggerHandler('load'); |
668 | 315 }, |
316 | |
317 // goto given page nr (+/-: relative) | |
318 gotoPage : function (data, pageNr) { | |
319 var settings = data.settings; | |
320 var oldpn = settings.pn; | |
321 var pn = setNumValue(settings, "pn", pageNr); | |
322 if (pn == null) return false; // nothing happened | |
323 if (pn < 1) { | |
324 alert("no such page (page number too low)"); | |
325 settings.pn = oldpn; | |
326 return false; | |
327 } | |
328 if (settings.pt) { | |
329 if (pn > settings.pt) { | |
330 alert("no such page (page number too high)"); | |
623 | 331 settings.pn = oldpn; |
332 return false; | |
634 | 333 } |
668 | 334 } |
335 // reset mk and others(?) | |
336 data.marks = []; | |
337 data.zoomArea = MAX_ZOOMAREA; | |
338 // then reload | |
339 redisplay(data); | |
340 }, | |
654 | 341 |
668 | 342 // zoom by a given factor |
343 zoomBy : function (data, factor) { | |
344 zoomBy(data, factor); | |
345 }, | |
647 | 346 |
668 | 347 // zoom interactively |
348 zoomArea : function (data) { | |
349 zoomArea(data); | |
350 }, | |
650 | 351 |
668 | 352 // zoom out to full page |
353 zoomFull : function (data, mode) { | |
354 data.zoomArea = MAX_ZOOMAREA; | |
355 if (mode === 'width') { | |
356 data.dlOpts.fitwidth = 1; | |
357 delete data.dlOpts.fitheight; | |
358 } else if (mode === 'height') { | |
359 data.dlOpts.fitheight = 1; | |
360 delete data.dlOpts.fitwidth; | |
361 } else { | |
362 delete data.dlOpts.fitwidth; | |
363 delete data.dlOpts.fitheight; | |
364 } | |
365 redisplay(data); | |
366 }, | |
367 | |
368 // set a mark by clicking (or giving a position) | |
369 setMark : function (data, mpos) { | |
370 if (mpos == null) { | |
371 // interactive | |
372 setMark(data); | |
373 } else { | |
374 // use position | |
375 data.marks.push(pos); | |
663 | 376 redisplay(data); |
604 | 377 } |
668 | 378 }, |
379 | |
380 // remove the last mark | |
381 removeMark : function (data) { | |
382 data.marks.pop(); | |
383 redisplay(data); | |
384 }, | |
385 | |
386 // mirror the image | |
387 mirror : function (data, mode) { | |
388 var flags = data.scalerFlags; | |
389 if (mode === 'h') { | |
390 if (flags.hmir) { | |
391 delete flags.hmir; | |
392 } else { | |
393 flags.hmir = 1; | |
394 } | |
395 } else { | |
396 if (flags.vmir) { | |
397 delete flags.vmir; | |
398 } else { | |
399 flags.vmir = 1; | |
400 } | |
401 } | |
402 redisplay(data); | |
403 }, | |
650 | 404 |
668 | 405 // rotate the image |
406 rotate : function (data, angle) { | |
407 var rot = data.settings.rot; | |
408 if (angle == null) { | |
409 angle = window.prompt("Rotation angle:", rot); | |
410 } | |
411 data.settings.rot = angle; | |
412 redisplay(data); | |
413 }, | |
414 | |
415 // change brightness | |
416 brightness : function (data, factor) { | |
417 var brgt = data.settings.brgt; | |
418 if (factor == null) { | |
419 factor = window.prompt("Brightness (-255..255)", brgt); | |
420 } | |
421 data.settings.brgt = factor; | |
422 redisplay(data); | |
423 }, | |
424 | |
425 // change contrast | |
426 contrast : function (data, factor) { | |
427 var cont = data.settings.cont; | |
428 if (factor == null) { | |
429 factor = window.prompt("Contrast (-8, 8)", cont); | |
430 } | |
431 data.settings.cont = factor; | |
432 redisplay(data); | |
688 | 433 }, |
690 | 434 |
435 // display more (or less) button sets | |
436 morebuttons : function (data, more) { | |
696 | 437 var settings = data.settings; |
690 | 438 if (more === '-1') { |
439 // remove set | |
697 | 440 var setIdx = settings.visibleButtonSets - 1; |
441 if (showButtons(data, false, setIdx, true)) { | |
442 settings.visibleButtonSets--; | |
443 } | |
690 | 444 } else { |
445 // add set | |
697 | 446 var setIdx = settings.visibleButtonSets; |
447 if (showButtons(data, true, setIdx, true)) { | |
448 settings.visibleButtonSets++; | |
690 | 449 } |
450 } | |
691 | 451 }, |
688 | 452 |
453 reset : function (data) { | |
454 var settings = data.settings; | |
455 var paramNames = settings.digilibParamNames; | |
456 var params = data.queryParams; | |
457 resetData(data); | |
458 // delete all digilib parameters | |
459 for (var i = 0; i < paramNames.length; i++) { | |
460 var paramName = paramNames[i]; | |
461 delete settings[paramName]; | |
462 }; | |
463 // fullscreen: restore only fn/pn parameters | |
464 if (settings.interactionMode === 'fullscreen') { | |
465 settings['fn'] = params.fn; | |
466 settings['pn'] = params.pn; | |
467 // embedded: restore original parameters | |
468 } else { | |
469 $.extend(settings, params); | |
470 }; | |
471 redisplay(data); | |
689 | 472 }, |
473 | |
474 reference : function (data) { | |
475 var settings = data.settings; | |
476 var url; | |
477 if (settings.interactionMode === 'fullscreen') { | |
478 url = getDigilibUrl(data); | |
479 } else { | |
480 url = getScalerUrl(data); | |
481 }; | |
482 window.prompt("URL reference to the current view", url); | |
668 | 483 } |
605 | 484 }; |
604 | 485 |
608 | 486 // returns parameters from page url |
607 | 487 var parseQueryParams = function() { |
636 | 488 return parseQueryString(window.location.search.slice(1)); |
489 }; | |
655 | 490 |
636 | 491 // returns parameters from embedded img-element |
607 | 492 var parseImgParams = function($elem) { |
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493 var src = $elem.find('img').first().attr('src'); |
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494 if (!src) { |
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495 return null; |
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496 } |
607 | 497 var pos = src.indexOf('?'); |
498 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
499 var scalerUrl = src.substring(0, pos); | |
627 | 500 var params = parseQueryString(query); |
501 params.scalerBaseUrl = scalerUrl; | |
502 return params; | |
636 | 503 }; |
607 | 504 |
608 | 505 // parses query parameter string into parameter object |
607 | 506 var parseQueryString = function(query) { |
507 var pairs = query.split("&"); | |
627 | 508 var params = {}; |
636 | 509 //var keys = []; |
607 | 510 for (var i = 0; i < pairs.length; i++) { |
511 var pair = pairs[i].split("="); | |
512 if (pair.length === 2) { | |
627 | 513 params[pair[0]] = pair[1]; |
636 | 514 //keys.push(pair[0]); |
634 | 515 } |
636 | 516 } |
627 | 517 return params; |
636 | 518 }; |
668 | 519 |
643 | 520 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
521 var getParamString = function (settings, keys, defaults) { | |
615 | 522 var paramString = ''; |
650 | 523 var nx = false; |
615 | 524 for (i = 0; i < keys.length; ++i) { |
525 var key = keys[i]; | |
663 | 526 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 527 // first param gets no '&' |
650 | 528 if (nx) { |
529 paramString += '&'; | |
530 } else { | |
531 nx = true; | |
532 } | |
615 | 533 // add parm=val |
534 paramString += key + '=' + settings[key]; | |
643 | 535 } |
615 | 536 } |
537 return paramString; | |
631 | 538 }; |
539 | |
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540 // set/get cookie for current image |
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541 var cookie = function (data, key, value) { |
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542 var settings = data.settings; |
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543 var fn = settings.fn; |
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544 var pn = settings.pn; |
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545 var name = key + ":fn=" + fn + ":pn=" + pn; |
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546 var result = (typeof value === 'undefined') ? $.cookie(name) : $.cookie(name, value, 7); |
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547 console.log("cookie=", name, " value=", $.cookie(name)); |
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548 return result; |
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549 }; |
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550 |
636 | 551 // returns URL and query string for Scaler |
552 var getScalerUrl = function (data) { | |
653 | 553 var settings = data.settings; |
652 | 554 if (settings.scalerBaseUrl == null) { |
555 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
556 } | |
665 | 557 packParams(data); |
636 | 558 var keys = settings.scalerParamNames; |
643 | 559 var queryString = getParamString(settings, keys, defaults); |
636 | 560 var url = settings.scalerBaseUrl + '?' + queryString; |
561 return url; | |
562 }; | |
563 | |
564 // returns URL and query string for current digilib | |
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565 var getDigilibUrl = function (data) { |
643 | 566 packParams(data); |
636 | 567 var settings = data.settings; |
644
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568 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
636 | 569 var url = window.location.toString(); |
570 var pos = url.indexOf('?'); | |
571 var baseUrl = url.substring(0, pos); | |
572 var newurl = baseUrl + '?' + queryString; | |
573 return newurl; | |
574 }; | |
575 | |
655 | 576 // processes some parameters into objects and stuff |
631 | 577 var unpackParams = function (data) { |
578 var settings = data.settings; | |
636 | 579 // zoom area |
631 | 580 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 581 data.zoomArea = zoomArea; |
636 | 582 // marks |
631 | 583 var marks = []; |
650 | 584 if (settings.mk) { |
585 var mk = settings.mk; | |
586 if (mk.indexOf(";") >= 0) { | |
587 var pa = mk.split(";"); // old format with ";" | |
588 } else { | |
589 var pa = mk.split(","); // new format | |
590 } | |
591 for (var i = 0; i < pa.length ; i++) { | |
592 var pos = pa[i].split("/"); | |
593 if (pos.length > 1) { | |
594 marks.push(geom.position(pos[0], pos[1])); | |
595 } | |
633 | 596 } |
631 | 597 } |
643 | 598 data.marks = marks; |
650 | 599 // mo (Scaler flags) |
600 var flags = {}; | |
601 if (settings.mo) { | |
602 var pa = settings.mo.split(","); | |
603 for (var i = 0; i < pa.length ; i++) { | |
604 flags[pa[i]] = pa[i]; | |
605 } | |
606 } | |
607 data.scalerFlags = flags; | |
608 // clop (digilib options) | |
609 var opts = {}; | |
610 if (settings.clop) { | |
611 var pa = settings.clop.split(","); | |
612 for (var i = 0; i < pa.length ; i++) { | |
613 opts[pa[i]] = pa[i]; | |
614 } | |
615 } | |
616 data.dlOpts = opts; | |
661 | 617 // birdview option |
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618 if (cookie(data, 'birdview') === '1') { |
661 | 619 settings.isBirdDivVisible = 1; |
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620 } |
655 | 621 }; |
622 | |
631 | 623 // put objects back into parameters |
624 var packParams = function (data) { | |
625 var settings = data.settings; | |
636 | 626 // zoom area |
643 | 627 if (data.zoomArea) { |
647 | 628 settings.wx = cropFloat(data.zoomArea.x); |
629 settings.wy = cropFloat(data.zoomArea.y); | |
630 settings.ww = cropFloat(data.zoomArea.width); | |
631 settings.wh = cropFloat(data.zoomArea.height); | |
631 | 632 } |
636 | 633 // marks |
643 | 634 if (data.marks) { |
650 | 635 settings.mk = ''; |
643 | 636 for (var i = 0; i < data.marks.length; i++) { |
650 | 637 if (i) { |
638 settings.mk += ','; | |
639 } | |
640 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
631 | 641 } |
650 | 642 } |
643 // Scaler flags | |
644 if (data.scalerFlags) { | |
645 var mo = ''; | |
646 for (var f in data.scalerFlags) { | |
647 if (mo) { | |
648 mo += ','; | |
649 } | |
650 mo += f; | |
651 } | |
652 settings.mo = mo; | |
653 } | |
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654 // digilib option birdview |
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655 // cookie(data, 'birdview', settings.isBirdDivVisible ? "1" : "0"); |
688 | 656 |
650 | 657 // digilib options |
658 if (data.dlOpts) { | |
659 var clop = ''; | |
660 for (var o in data.dlOpts) { | |
661 if (clop) { | |
662 clop += ','; | |
663 } | |
664 clop += o; | |
665 } | |
666 settings.clop = clop; | |
631 | 667 } |
668 }; | |
655 | 669 |
688 | 670 // clear digilib data for reset |
671 var resetData = function (data) { | |
672 if (data.zoomArea) delete data.zoomArea; | |
673 if (data.marks) delete data.marks; | |
674 if (data.scalerFlags) delete data.scalerFlags; | |
675 if (data.dlOpts) delete data.dlOpts; | |
676 }; | |
677 | |
622 | 678 // (re)load the img from a new scaler URL |
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679 var redisplay = function (data) { |
636 | 680 var settings = data.settings; |
681 if (settings.interactionMode === 'fullscreen') { | |
682 // update location.href (browser URL) in fullscreen mode | |
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683 var url = getDigilibUrl(data); |
636 | 684 var history = window.history; |
685 if (typeof(history.pushState) === 'function') { | |
686 console.debug("we could modify history, but we don't..."); | |
687 } | |
688 window.location = url; | |
689 } else { | |
690 // embedded mode -- just change img src | |
691 var url = getScalerUrl(data); | |
692 data.$img.attr('src', url); | |
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693 // and update bird's eye view |
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694 //if (settings.isBirdDivVisible) { |
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695 // renderBirdZoom(data); |
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696 //} |
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697 }; |
622 | 698 }; |
699 | |
662 | 700 // returns maximum size for scaler img in fullscreen mode |
701 var getFullscreenImgSize = function($elem) { | |
702 var $win = $(window); | |
703 var winH = $win.height(); | |
704 var winW = $win.width(); | |
705 // TODO: account for borders? | |
706 return geom.size(winW, winH); | |
707 }; | |
708 | |
608 | 709 // creates HTML structure for digilib in elem |
627 | 710 var setupScalerDiv = function (data) { |
711 var settings = data.settings; | |
647 | 712 var $elem = data.$elem; |
686 | 713 var $img, scalerUrl; |
714 // fullscreen | |
608 | 715 if (settings.interactionMode === 'fullscreen') { |
609 | 716 var imgSize = getFullscreenImgSize($elem); |
650 | 717 // fitwidth/height omits destination height/width |
718 if (data.dlOpts['fitheight'] == null) { | |
719 settings.dw = imgSize.width; | |
686 | 720 }; |
650 | 721 if (data.dlOpts['fitwidth'] == null) { |
722 settings.dh = imgSize.height; | |
686 | 723 }; |
613
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724 $img = $('<img/>'); |
686 | 725 scalerUrl = getScalerUrl(data); |
726 // embedded mode -- try to keep img tag | |
609 | 727 } else { |
623 | 728 $img = $elem.find('img'); |
613
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729 if ($img.length > 0) { |
686 | 730 console.debug("img detach:", $img); |
731 scalerUrl = $img.attr('src'); | |
613
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732 $img.detach(); |
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733 } else { |
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734 $img = $('<img/>'); |
686 | 735 scalerUrl = getScalerUrl(data); |
736 }; | |
608 | 737 } |
613
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738 // create new html |
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739 $elem.empty(); // TODO: should we keep stuff for customization? |
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740 var $scaler = $('<div class="scaler"/>'); |
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741 $elem.append($scaler); |
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742 $scaler.append($img); |
622 | 743 $img.addClass('pic'); |
649 | 744 data.$scaler = $scaler; |
636 | 745 data.$img = $img; |
687 | 746 // setup image load handler before setting the src attribute (IE bug) |
747 $img.load(scalerImgLoadedHandler(data)); | |
748 $img.attr('src', scalerUrl); | |
608 | 749 }; |
615 | 750 |
610 | 751 // creates HTML structure for buttons in elem |
697 | 752 var createButtons = function (data, buttonSetIdx) { |
647 | 753 var $elem = data.$elem; |
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754 var settings = data.settings; |
665 | 755 var mode = settings.interactionMode; |
672
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756 var buttonSettings = settings.buttonSettings[mode]; |
682 | 757 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
690 | 758 if (buttonGroup == null) { |
759 // no buttons here | |
760 return; | |
761 } | |
762 var $buttonsDiv = $('<div class="buttons"/>'); | |
682 | 763 var buttonNames = buttonSettings[buttonGroup]; |
764 for (var i = 0; i < buttonNames.length; i++) { | |
765 var buttonName = buttonNames[i]; | |
766 var buttonConfig = settings.buttons[buttonName]; | |
665 | 767 // construct the button html |
768 var $button = $('<div class="button"></div>'); | |
769 var $a = $('<a/>'); | |
770 var $img = $('<img class="button"/>'); | |
771 $buttonsDiv.append($button); | |
772 $button.append($a); | |
773 $a.append($img); | |
774 // add attributes and bindings | |
775 $button.attr('title', buttonConfig.tooltip); | |
682 | 776 $button.addClass('button-' + buttonName); |
665 | 777 // create handler for the buttons |
778 $a.bind('click.digilib', (function () { | |
779 // we create a new closure to capture the value of action | |
780 var action = buttonConfig.onclick; | |
781 if ($.isArray(action)) { | |
782 // the handler function calls digilib with action and parameters | |
783 return function (evt) { | |
784 console.debug('click action=', action, ' evt=', evt); | |
785 $elem.digilib.apply($elem, action); | |
786 return false; | |
787 }; | |
788 } else { | |
789 // the handler function calls digilib with action | |
790 return function (evt) { | |
791 console.debug('click action=', action, ' evt=', evt); | |
792 $elem.digilib(action); | |
793 return false; | |
794 }; | |
795 } | |
796 })()); | |
797 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
690 | 798 } |
662 | 799 // make buttons div scroll if too large for window |
800 if ($buttonsDiv.height() > $(window).height() - 10) { | |
801 $buttonsDiv.css('position', 'absolute'); | |
802 } | |
697 | 803 // buttons hidden at first |
804 $buttonsDiv.hide(); | |
805 $elem.append($buttonsDiv); | |
682 | 806 if (data.$buttonSets == null) { |
697 | 807 // first button set |
682 | 808 data.$buttonSets = [$buttonsDiv]; |
809 } else { | |
690 | 810 $elem.append($buttonsDiv); |
682 | 811 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
812 } | |
612 | 813 return $buttonsDiv; |
610 | 814 }; |
615 | 815 |
816 // creates HTML structure for the bird's eye view in elem | |
638 | 817 var setupBirdDiv = function (data) { |
647 | 818 var $elem = data.$elem; |
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819 var settings = data.settings; |
615 | 820 // use only the relevant parameters |
821 var keys = ['fn','pn','dw','dh']; | |
674 | 822 var birdDivOptions = { |
823 dw : settings.birdDivWidth, | |
824 dh : settings.birdDivHeight | |
825 }; | |
826 var birdSettings = $.extend({}, settings, birdDivOptions); | |
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827 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
615 | 828 // the bird's eye div |
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829 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
615 | 830 // the detail indicator frame |
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831 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
615 | 832 // the small image |
833 var $birdImg = $('<img class="birdimg"/>'); | |
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834 $elem.append($birdDiv); |
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835 $birdDiv.append($birdZoom); |
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836 $birdDiv.append($birdImg); |
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837 $birdZoom.css(data.settings.birdIndicatorStyle); |
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838 data.$birdDiv = $birdDiv; |
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839 data.$birdZoom = $birdZoom; |
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840 data.$birdImg = $birdImg; |
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841 $birdImg.load(birdImgLoadedHandler(data)); |
615 | 842 $birdImg.attr('src', birdUrl); |
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843 if (data.settings.isBirdDivVisible) { |
687 | 844 $birdDiv.show(); |
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845 }; |
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846 birdZoom(data); |
640
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847 }; |
615 | 848 |
625 | 849 // creates HTML structure for the about view in elem |
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850 var setupAboutDiv = function (data) { |
647 | 851 var $elem = data.$elem; |
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852 var settings = data.settings; |
625 | 853 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
616 | 854 var $header = $('<p>Digilib Graphic Viewer</p>'); |
855 var $link = $('<a/>'); | |
856 var $logo = $('<img class="logo" title="digilib"/>'); | |
857 var $content = $('<p/>'); | |
858 $elem.append($aboutDiv); | |
859 $aboutDiv.append($header); | |
860 $aboutDiv.append($link); | |
861 $aboutDiv.append($content); | |
862 $link.append($logo); | |
863 $logo.attr('src', settings.logoUrl); | |
635 | 864 $link.attr('href', settings.homeUrl); |
616 | 865 $content.text('Version: ' + settings.version); |
635 | 866 // click hides |
649 | 867 $aboutDiv.bind('click.digilib', function () { |
646 | 868 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
649 | 869 return false; |
870 }); | |
635 | 871 data.$aboutDiv = $aboutDiv; |
634 | 872 }; |
873 | |
635 | 874 // shows some window e.g. 'about' (toggle visibility if show is null) |
875 var showDiv = function (isVisible, $div, show) { | |
645 | 876 if (show == null) { |
635 | 877 // toggle visibility |
878 isVisible = !isVisible; | |
879 } else { | |
880 // set visibility | |
881 isVisible = show; | |
882 } | |
883 if (isVisible) { | |
884 $div.fadeIn(); | |
885 } else { | |
886 $div.fadeOut(); | |
887 } | |
888 return isVisible; | |
634 | 889 }; |
616 | 890 |
697 | 891 // display more (or less) button sets |
892 var showButtons = function (data, more, setIdx, animated) { | |
893 if (more) { | |
894 // add set | |
895 var $otherSets = data.$elem.find('div.buttons:visible'); | |
896 var $set; | |
897 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
898 // set exists | |
899 $set = data.$buttonSets[setIdx]; | |
900 } else { | |
901 $set = createButtons(data, setIdx); | |
902 } | |
903 if ($set == null) return false; | |
904 var btnWidth = $set.width(); | |
905 // move remaining sets left and show new set | |
906 if (animated) { | |
907 $otherSets.animate({left : '-='+btnWidth+'px'}, 'fast', | |
908 function () {$set.show();}); | |
909 } else { | |
910 $otherSets.css({left : '-='+btnWidth+'px'}); | |
911 $set.show(); | |
912 } | |
913 } else { | |
914 // remove set | |
915 var $set = data.$buttonSets[setIdx]; | |
916 if ($set == null) return false; | |
917 var btnWidth = $set.width(); | |
918 // hide last set | |
919 $set.hide(); | |
920 // take remaining sets and move right | |
921 var $otherSets = data.$elem.find('div.buttons:visible'); | |
922 if (animated) { | |
923 $otherSets.animate({left : '+='+btnWidth+'px'}, 'fast'); | |
924 } else { | |
925 $otherSets.css({left : '+='+btnWidth+'px'}); | |
926 } | |
927 } | |
928 return true; | |
929 }; | |
930 | |
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931 // create Transform from area and $img |
675 | 932 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
658
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933 var picrect = geom.rectangle($img); |
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934 var trafo = geom.transform(); |
675 | 935 // move zoom area offset to center |
658
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936 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
675 | 937 // scale zoom area size to [1,1] |
658
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938 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
675 | 939 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
940 if (rot || hmir || vmir) { | |
941 // move [0.5,0.5] to center | |
942 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
943 if (hmir) { | |
944 // mirror about center | |
945 trafo.concat(trafo.getMirror('y')); | |
946 } | |
947 if (vmir) { | |
948 // mirror about center | |
949 trafo.concat(trafo.getMirror('x')); | |
950 } | |
951 if (rot) { | |
952 // rotate around center | |
953 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
954 } | |
955 // move back | |
956 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
664
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957 } |
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958 // scale to screen position and size |
658
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959 trafo.concat(trafo.getScale(picrect)); |
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960 trafo.concat(trafo.getTranslation(picrect)); |
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961 return trafo; |
655 | 962 }; |
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963 |
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964 // returns function for load event of scaler img |
636 | 965 var scalerImgLoadedHandler = function (data) { |
966 var $img = data.$img; | |
633 | 967 return function () { |
627 | 968 console.debug("img loaded! this=", this, " data=", data); |
969 // create Transform from current area and picsize | |
675 | 970 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
971 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
686 | 972 console.debug("imgTrafo=", data.imgTrafo); |
627 | 973 // display marks |
633 | 974 renderMarks(data); |
695
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975 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation |
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976 // TODO: the birdview should adapt to mirror or rotation? |
678
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977 var $birdImg = data.$birdImg; |
670
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978 if ($birdImg) { |
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979 $birdImg.triggerHandler('load'); |
678
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980 }; |
658
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981 }; |
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|
982 }; |
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983 |
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|
984 // returns function for load event of bird's eye view img |
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985 var birdImgLoadedHandler = function (data) { |
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986 var $img = data.$birdImg; |
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987 return function () { |
677
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988 console.debug("birdimg loaded! this=", this, " data=", data); |
658
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989 // create Transform from current area and picsize |
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990 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
668 | 991 // display red indicator around zoomarea |
678
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992 renderbirdZoom(data); |
613
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993 }; |
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994 }; |
633 | 995 |
996 // place marks on the image | |
997 var renderMarks = function (data) { | |
647 | 998 var $elem = data.$elem; |
643 | 999 var marks = data.marks; |
649 | 1000 // TODO: clear marks first(?) |
633 | 1001 for (var i = 0; i < marks.length; i++) { |
1002 var mark = marks[i]; | |
643 | 1003 if (data.zoomArea.containsPosition(mark)) { |
633 | 1004 var mpos = data.imgTrafo.transform(mark); |
664
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1005 console.debug("renderMarks: mpos=",mpos); |
633 | 1006 // create mark |
1007 var html = '<div class="mark">'+(i+1)+'</div>'; | |
1008 var $mark = $(html); | |
1009 $elem.append($mark); | |
654 | 1010 $mark.offset({left : mpos.x, top : mpos.y}); |
633 | 1011 } |
1012 } | |
1013 }; | |
655 | 1014 |
677
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1015 // show zoom area indicator on bird's eye view |
678
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1016 var renderbirdZoom = function (data) { |
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1017 var $birdZoom = data.$birdZoom; |
659 | 1018 var zoomArea = data.zoomArea; |
1019 var indRect = data.birdTrafo.transform(zoomArea); | |
670
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1020 var coords = { |
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1021 left : indRect.x-2, // acount for frame width |
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1022 top : indRect.y-2, |
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1023 width : indRect.width, |
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1024 height: indRect.height |
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1025 }; |
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1026 var normalSize = isFullArea(zoomArea); |
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1027 if (data.settings.interactionMode === 'fullscreen') { |
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1028 // no animation for fullscreen |
678
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1029 if (normalSize) return $birdZoom.hide(); |
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1030 $birdZoom.width(coords.width); |
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1031 $birdZoom.height(coords.height); |
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1032 $birdZoom.offset(coords); |
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1033 $birdZoom.show(); |
670
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1034 return; |
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|
1035 }; |
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1036 // nice animation for embedded mode :-) |
678
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1037 var makeCompleteFunction = function($birdZoom, normalSize) { |
670
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1038 return function() { |
678
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1039 if (normalSize) $birdZoom.hide(); |
672
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1040 }; |
670
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1041 }; |
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1042 var opts = { |
678
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1043 'complete' : makeCompleteFunction($birdZoom, normalSize) |
670
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1044 }; |
678
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1045 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
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1046 $birdZoom.animate(coords, opts); |
664
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1047 }; |
659 | 1048 |
647 | 1049 // zooms by the given factor |
643 | 1050 var zoomBy = function(data, factor) { |
1051 var area = data.zoomArea; | |
1052 var newarea = area.copy(); | |
1053 // scale | |
1054 newarea.width /= factor; | |
1055 newarea.height /= factor; | |
1056 // and recenter | |
1057 newarea.x -= 0.5 * (newarea.width - area.width); | |
1058 newarea.y -= 0.5 * (newarea.height - area.height); | |
1059 newarea = MAX_ZOOMAREA.fit(newarea); | |
1060 data.zoomArea = newarea; | |
644
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|
1061 redisplay(data); |
643 | 1062 }; |
1063 | |
647 | 1064 // add a mark where clicked |
1065 var setMark = function (data) { | |
649 | 1066 var $scaler = data.$scaler; |
647 | 1067 // start event capturing |
649 | 1068 $scaler.one('click.digilib', function (evt) { |
647 | 1069 // event handler adding a new mark |
672
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1070 var mpos = geom.position(evt); |
647 | 1071 var pos = data.imgTrafo.invtransform(mpos); |
1072 data.marks.push(pos); | |
1073 redisplay(data); | |
649 | 1074 return false; // do we even get here? |
647 | 1075 }); |
1076 }; | |
668 | 1077 |
654 | 1078 var zoomArea = function(data) { |
1079 $elem = data.$elem; | |
1080 $scaler = data.$scaler; | |
1081 var pt1, pt2; | |
1082 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
1083 $elem.append($zoomDiv); | |
668 | 1084 $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 1085 var picRect = geom.rectangle($scaler); |
1086 // FIX ME: is there a way to query the border width from CSS info? | |
1087 // rect.x -= 2; // account for overlay borders | |
1088 // rect.y -= 2; | |
1089 | |
1090 var zoomStart = function (evt) { | |
1091 pt1 = geom.position(evt); | |
1092 // setup and show zoom div | |
1093 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
1094 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
668 | 1095 $zoomDiv.width(0).height(0); |
654 | 1096 $zoomDiv.show(); |
1097 // register events | |
1098 $elem.bind("mousemove.digilib", zoomMove); | |
1099 $elem.bind("mouseup.digilib", zoomEnd); | |
1100 return false; | |
1101 }; | |
668 | 1102 |
654 | 1103 // mouseup handler: end moving |
1104 var zoomEnd = function (evt) { | |
1105 pt2 = geom.position(evt); | |
1106 // assume a click and continue if the area is too small | |
1107 var clickRect = geom.rectangle(pt1, pt2); | |
1108 if (clickRect.getArea() <= 5) { | |
1109 return false; | |
1110 } | |
1111 // hide zoom div | |
1112 $zoomDiv.remove(); | |
1113 // unregister events | |
1114 $elem.unbind("mousemove.digilib", zoomMove); | |
1115 $elem.unbind("mouseup.digilib", zoomEnd); | |
1116 // clip and transform | |
1117 clickRect.clipTo(picRect); | |
1118 var area = data.imgTrafo.invtransform(clickRect); | |
1119 data.zoomArea = area; | |
1120 // zoomed is always fit | |
1121 data.settings.ws = 1; | |
1122 redisplay(data); | |
1123 return false; | |
1124 }; | |
668 | 1125 |
654 | 1126 // mouse move handler |
1127 var zoomMove = function (evt) { | |
1128 pt2 = geom.position(evt); | |
1129 var rect = geom.rectangle(pt1, pt2); | |
1130 rect.clipTo(picRect); | |
1131 // update zoom div | |
672
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|
1132 rect.adjustDiv($zoomDiv); |
654 | 1133 return false; |
1134 }; | |
668 | 1135 |
654 | 1136 // bind start zoom handler |
1137 $scaler.one('mousedown.digilib', zoomStart); | |
1138 }; | |
647 | 1139 |
678
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1140 var birdZoom = function(data) { |
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1141 var $birdImg = data.$birdImg; |
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|
1142 var $birdZoom = data.$birdZoom; |
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|
1143 var startPos, newRect, birdImgRect, birdZoomRect; |
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|
1144 |
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|
1145 var birdZoomMove = function(evt) { |
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|
1146 // mousemove handler: drag |
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|
1147 var pos = geom.position(evt); |
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|
1148 var dx = pos.x - startPos.x; |
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|
1149 var dy = pos.y - startPos.y; |
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|
1150 // move birdZoom div, keeping size |
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|
1151 newRect = geom.rectangle( |
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|
1152 birdZoomRect.x + dx, |
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|
1153 birdZoomRect.y + dy, |
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|
1154 birdZoomRect.width, |
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|
1155 birdZoomRect.height |
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|
1156 ); |
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|
1157 // stay within birdimage |
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1158 newRect.stayInside(birdImgRect); |
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1159 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
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|
1160 // $birdZoom.show(); |
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1161 return false; |
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|
1162 }; |
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|
1163 |
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|
1164 var birdZoomEndDrag = function(evt) { |
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|
1165 // mouseup handler: reload page |
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|
1166 var settings = data.settings; |
680 | 1167 $(document).unbind("mousemove.digilib", birdZoomMove); |
1168 $(document).unbind("mouseup.digilib", birdZoomEndDrag); | |
1169 $birdZoom.unbind("mousemove.digilib", birdZoomMove); | |
1170 $birdZoom.unbind("mouseup.digilib", birdZoomEndDrag); | |
678
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1171 if (newRect == null) { // no movement happened |
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|
1172 startPos = birdZoomRect.getCenter(); |
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|
1173 birdZoomMove(evt); // set center to click position |
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|
1174 }; |
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|
1175 if (data.zoomArea) { |
679 | 1176 // should always be true |
1177 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
1178 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
1179 data.zoomArea.x = x; | |
1180 data.zoomArea.y = y; | |
678
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1181 }; |
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1182 settings.ws = 1; // zoomed is always fit |
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|
1183 redisplay(data); |
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1184 return false; |
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|
1185 }; |
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1186 |
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|
1187 var birdZoomStartDrag = function(evt) { |
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|
1188 // mousedown handler: start dragging bird zoom to a new position |
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1189 startPos = geom.position(evt); |
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1190 birdImgRect = geom.rectangle($birdImg); |
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1191 birdZoomRect = geom.rectangle($birdZoom); |
680 | 1192 $(document).bind("mousemove.digilib", birdZoomMove); |
1193 $(document).bind("mouseup.digilib", birdZoomEndDrag); | |
1194 $birdZoom.bind("mousemove.digilib", birdZoomMove); | |
1195 $birdZoom.bind("mouseup.digilib", birdZoomEndDrag); | |
678
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1196 return false; |
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1197 }; |
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1198 |
681 | 1199 $birdImg.bind("mousedown.digilib", birdZoomStartDrag); |
1200 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag); | |
678
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1201 }; |
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1202 |
650 | 1203 // sets a key to a value (relative values with +/- if relative=true) |
1204 var setNumValue = function(settings, key, value) { | |
1205 if (isNumber(value)) return settings[key] = value; | |
1206 var sign = value.substring(0,1); | |
1207 if (sign === '+' || sign === '-') { | |
1208 if (settings[key] == null) { | |
651
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1209 // this isn't perfect but still... |
650 | 1210 settings[key] = 0; |
1211 } | |
1212 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
1213 } else { | |
1214 settings[key] = value; | |
1215 } | |
1216 return settings[key]; | |
1217 }; | |
655 | 1218 |
1219 // auxiliary function (from old dllib.js) | |
659 | 1220 isFullArea = function(area) { |
1221 return (area.width === 1.0) && (area.height === 1.0); | |
655 | 1222 }; |
1223 | |
641 | 1224 // auxiliary function (from Douglas Crockford, A.10) |
1225 var isNumber = function isNumber(value) { | |
1226 return typeof value === 'number' && isFinite(value); | |
1227 }; | |
655 | 1228 |
631 | 1229 // auxiliary function to crop senseless precision |
1230 var cropFloat = function (x) { | |
637 | 1231 return parseInt(10000 * x, 10) / 10000; |
631 | 1232 }; |
655 | 1233 |
692 | 1234 // fallback for console.log calls |
1235 if (customConsole) { | |
1236 var logFunction = function(type) { | |
1237 return function(){ | |
1238 var $debug = $('#debug'); // debug div | |
1239 if (!$debug) return; | |
1240 var args = Array.prototype.slice.call(arguments); | |
1241 var argtext = args.join(' '); | |
1242 var $logDiv = $('<div/>'); | |
1243 $logDiv.addClass(type); | |
1244 $logDiv.text(argtext); | |
1245 $debug.append($logDiv); | |
1246 }; | |
1247 }; | |
1248 console.log = logFunction('_log'); | |
1249 console.debug = logFunction('_debug'); | |
1250 console.error = logFunction('_error'); | |
1251 }; | |
1252 | |
605 | 1253 // hook plugin into jquery |
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1254 $.fn.digilib = function(action) { |
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1255 if (actions[action]) { |
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1256 // call action on this with the remaining arguments (inserting data as first argument) |
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1257 var $elem = $(this); |
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1258 var data = $elem.data('digilib'); |
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1259 var args = Array.prototype.slice.call(arguments, 1); |
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1260 args.unshift(data); |
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1261 return actions[action].apply(this, args); |
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1262 } else if (typeof(action) === 'object' || !action) { |
634 | 1263 // call init on this |
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1264 return actions.init.apply(this, arguments); |
605 | 1265 } else { |
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1266 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
605 | 1267 } |
1268 }; | |
692 | 1269 |
604 | 1270 })(jQuery); |