Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 634:3223fabd53bc jquery
some small aboutdiv fixes
| author | hertzhaft |
|---|---|
| date | Wed, 19 Jan 2011 15:53:08 +0100 |
| parents | f58bf103c3af |
| children | 687447a0e799 |
| rev | line source |
|---|---|
| 597 | 1 /* |
| 2 * digilib jQuery plugin | |
| 3 * | |
| 4 */ | |
| 629 | 5 |
| 6 // fallback for console.log calls | |
| 7 if (typeof(console) === 'undefined') { | |
| 8 var console = { | |
| 9 log : function(){}, | |
| 10 debug : function(){}, | |
| 11 error : function(){} | |
| 12 }; | |
| 13 } | |
| 597 | 14 |
| 15 (function($) { | |
|
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16 var actions = { |
| 603 | 17 reference : { |
| 18 onclick : "javascript:getRefWin()", | |
| 19 tooltip : "get a reference URL", | |
| 20 img : "reference.png" | |
| 21 }, | |
| 22 zoomin : { | |
| 23 onclick : "javascript:dl.zoomBy(1.4)", | |
| 24 tooltip : "zoom in", | |
| 25 img : "zoom-in.png" | |
| 26 }, | |
| 27 zoomout : { | |
| 28 onclick : "javascript:zoomBy(0.7)", | |
| 29 tooltip : "zoom out", | |
| 30 img : "zoom-out.png" | |
| 31 }, | |
| 32 zoomarea : { | |
| 33 onclick : "javascript:zoomArea()", | |
| 34 tooltip : "zoom area", | |
| 35 img : "zoom-area.png" | |
| 36 }, | |
| 37 zoomfull : { | |
| 38 onclick : "javascript:zoomFullpage()", | |
| 39 tooltip : "view the whole image", | |
| 40 img : "zoom-full.png" | |
| 41 }, | |
| 42 pagewidth : { | |
| 43 onclick : "javascript:zoomFullpage('width')", | |
| 44 tooltip : "page width", | |
| 45 img : "pagewidth.png" | |
| 46 }, | |
| 47 back : { | |
| 616 | 48 onclick : ["gotoPage", "-1"], |
| 603 | 49 tooltip : "goto previous image", |
| 50 img : "back.png" | |
| 51 }, | |
| 52 fwd : { | |
| 616 | 53 onclick : ["gotoPage", "+1"], |
| 603 | 54 tooltip : "goto next image", |
| 55 img : "fwd.png" | |
| 56 }, | |
| 57 page : { | |
| 58 onclick : "javascript:gotoPageWin()", | |
| 59 tooltip : "specify image", | |
| 60 img : "page.png" | |
| 61 }, | |
| 62 bird : { | |
| 628 | 63 onclick : "showBirdDiv", |
| 603 | 64 tooltip : "show bird's eye view", |
| 65 img : "birds-eye.png" | |
| 66 }, | |
| 67 help : { | |
| 628 | 68 onclick : "showAboutDiv", |
| 603 | 69 tooltip : "about Digilib", |
| 70 img : "help.png" | |
| 71 }, | |
| 72 reset : { | |
| 73 onclick : "javascript:resetImage()", | |
| 74 tooltip : "reset image", | |
| 75 img : "reset.png" | |
| 76 }, | |
| 77 mark : { | |
| 78 onclick : "javascript:setMark()", | |
| 79 tooltip : "set a mark", | |
| 80 img : "mark.png" | |
| 81 }, | |
| 82 delmark : { | |
| 83 onclick : "javascript:removeMark()", | |
| 84 tooltip : "delete the last mark", | |
| 85 img : "delmark.png" | |
| 86 }, | |
| 87 hmir : { | |
| 88 onclick : "javascript:mirror('h')", | |
| 89 tooltip : "mirror horizontally", | |
| 90 img : "mirror-horizontal.png" | |
| 91 }, | |
| 92 vmir : { | |
| 93 onclick : "javascript:mirror('v')", | |
| 94 tooltip : "mirror vertically", | |
| 95 img : "mirror-vertical.png" | |
| 96 }, | |
| 97 rot : { | |
| 98 onclick : "javascript:setParamWin('rot', 'Rotate (0..360) clockwise')", | |
| 99 tooltip : "rotate image", | |
| 100 img : "rotate.png" | |
| 101 }, | |
| 102 brgt : { | |
| 103 onclick : "javascript:setParamWin('brgt', 'Brightness (-255..255)')", | |
| 104 tooltip : "set brightness", | |
| 105 img : "brightness.png" | |
| 106 }, | |
| 107 cont : { | |
| 108 onclick : "javascript:setParamWin('cont', 'Contrast (0..8)')", | |
| 109 tooltip : "set contrast", | |
| 110 img : "contrast.png" | |
| 111 }, | |
| 112 rgb : { | |
| 113 onclick : "javascript:setParamWin('rgb', '...')", | |
| 114 tooltip : "set rgb values", | |
| 115 img : "rgb.png" | |
| 116 }, | |
| 117 quality : { | |
| 118 onclick : "javascript:setQualityWin('Quality (0..2)')", | |
| 119 tooltip : "set image quality", | |
| 120 img : "quality.png" | |
| 121 }, | |
| 122 size : { | |
| 123 onclick : "javascript:toggleSizeMenu()", | |
| 124 tooltip : "set page size", | |
| 125 img : "size.png" | |
| 126 }, | |
| 127 calibrationx : { | |
| 128 onclick : "javascript:calibrate('x')", | |
| 129 tooltip : "calibrate screen x-ratio", | |
| 130 img : "calibration-x.png" | |
| 131 }, | |
| 132 scale : { | |
| 133 onclick : "javascript:toggleScaleMenu()", | |
| 134 tooltip : "change image scale", | |
| 135 img : "original-size.png" | |
| 136 }, | |
| 137 options : { | |
| 138 onclick : "javascript:toggleOptionDiv()", | |
| 139 tooltip : "hide options", | |
| 140 img : "options.png" | |
| 141 }, | |
| 142 SEP : { | |
| 143 img : "sep.png" | |
| 144 } | |
| 145 }; | |
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146 |
| 598 | 147 var defaults = { |
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148 // the root digilib element, for easy retrieval |
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149 'digilibRoot' : null, |
| 609 | 150 // version of this script |
| 628 | 151 'version' : 'jquery.digilib.js 0.9', |
| 609 | 152 // logo url |
| 153 'logoUrl' : '../img/digilib-logo-text1.png', | |
| 628 | 154 // homepage url (behind logo) |
| 155 'homeUrl' : 'http://digilib.berlios.de', | |
| 603 | 156 // base URL to Scaler servlet |
| 157 'scalerBaseUrl' : 'http://digilib.mpiwg-berlin.mpg.de/digitallibrary/servlet/Scaler', | |
| 158 // list of Scaler parameters | |
| 620 | 159 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
| 160 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
| 161 // Scaler parameter defaults | |
| 162 'ww' : 1.0, | |
| 163 'wh' : 1.0, | |
| 164 'wx' : 0.0, | |
| 165 'wy' : 0.0, | |
| 166 'ws' : 1.0, | |
| 630 | 167 'pn' : 1, |
| 603 | 168 // mode of operation. |
| 169 // fullscreen: takes parameters from page URL, keeps state in page URL | |
| 170 // embedded: takes parameters from Javascript options, keeps state inside object | |
| 171 'interactionMode' : 'fullscreen', | |
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172 // actions |
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173 'actions' : actions, |
| 605 | 174 // path to button images (must end with a slash) |
| 175 'buttonsImagePath' : '../greyskin/', | |
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176 // actions groups |
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177 'actionsStandard' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","options"], |
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178 'actionsSpecial' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","options"], |
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179 'actionsCustom' : [], |
| 609 | 180 // is birdView shown? |
| 181 'isBirdDivVisible' : false, | |
| 608 | 182 // dimensions of bird's eye window |
| 632 | 183 'birdDivOptions' : {'dw' : 200, 'dh' : 200}, |
| 609 | 184 // is the "about" window shown? |
| 185 'isAboutDivVisible' : false | |
| 186 | |
| 603 | 187 }; |
| 598 | 188 |
| 601 | 189 // affine geometry classes |
| 190 var geom = dlGeometry(); | |
| 597 | 191 |
| 192 var methods = { | |
| 601 | 193 // digilib initialization |
| 597 | 194 init : function(options) { |
| 601 | 195 // settings for this digilib instance are merged from defaults and options |
| 600 | 196 var settings = $.extend({}, defaults, options); |
| 629 | 197 var isFullscreen = settings.interactionMode === 'fullscreen'; |
| 198 var queryParams = {}; | |
| 600 | 199 if (isFullscreen) { |
| 200 queryParams = parseQueryParams(); | |
| 629 | 201 } |
| 597 | 202 return this.each(function() { |
| 598 | 203 var $elem = $(this); |
| 204 var data = $elem.data('digilib'); | |
| 600 | 205 var elemSettings; |
| 601 | 206 // if the plugin hasn't been initialized yet |
| 597 | 207 if (!data) { |
| 598 | 208 // merge query parameters |
| 600 | 209 if (isFullscreen) { |
| 210 elemSettings = $.extend({}, settings, queryParams); | |
| 211 } else { | |
| 212 elemSettings = $.extend({}, settings, parseImgParams($elem)); | |
| 627 | 213 } |
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214 // store $(this) element in the settings |
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215 elemSettings.digilibRoot = $elem; |
| 620 | 216 data = { |
| 217 target : $elem, | |
| 629 | 218 settings : elemSettings, |
| 219 queryParams : queryParams | |
| 620 | 220 }; |
| 598 | 221 // store in data element |
| 620 | 222 $elem.data('digilib', data); |
| 597 | 223 } |
| 626 | 224 unpackParams(data); |
| 601 | 225 // create HTML structure |
| 620 | 226 setupScalerDiv(data); |
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227 setupButtons(data, 'actionsStandard'); |
| 632 | 228 // bird's eye view creation |
| 229 if (settings.isBirdDivVisible) { | |
| 634 | 230 setupBirdDiv(data); |
| 632 | 231 } |
| 620 | 232 // about window creation - TODO: could be deferred? restrict to only one item? |
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233 setupAboutDiv(data); |
| 597 | 234 }); |
| 235 }, | |
| 601 | 236 |
| 237 // clean up digilib | |
| 597 | 238 destroy : function() { |
| 239 return this.each(function(){ | |
| 629 | 240 var $elem = $(this); |
| 241 var data = $elem.data('digilib'); | |
| 597 | 242 // Namespacing FTW |
| 598 | 243 $(window).unbind('.digilib'); // unbinds all digilibs(?) |
| 597 | 244 data.digilib.remove(); |
| 629 | 245 $elem.removeData('digilib'); |
| 597 | 246 }); |
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247 }, |
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248 |
| 628 | 249 // show or hide the 'about' window |
| 250 showAboutDiv : function(show) { | |
| 629 | 251 var $elem = $(this); |
| 252 var data = $elem.data('digilib'); | |
| 628 | 253 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); |
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254 }, |
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255 |
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256 // event handler: toggles the visibility of the bird's eye window |
| 628 | 257 showBirdDiv : function (show) { |
| 629 | 258 var $elem = $(this); |
| 259 var data = $elem.data('digilib'); | |
| 631 | 260 if (data.$birdDiv == null) { |
| 261 // no bird div -> create | |
| 262 setupBirdDiv(data); | |
| 263 } | |
| 628 | 264 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); |
| 616 | 265 }, |
| 266 | |
| 267 // goto given page nr (+/-: relative) | |
| 629 | 268 gotoPage : function (pageNr) { |
| 616 | 269 var $elem = $(this); // the clicked button |
| 629 | 270 var data = $elem.data('digilib'); |
| 271 var settings = data.settings; | |
| 616 | 272 var oldpn = settings.pn; |
| 617 | 273 var pn = setNumValue(settings, "pn", pageNr); |
| 274 if (pn == null) return false; // nothing happened | |
| 616 | 275 if (pn < 1) { |
| 276 alert("no such page (page number too low)"); | |
| 277 settings.pn = oldpn; | |
| 278 return false; | |
| 627 | 279 } |
| 616 | 280 if (settings.pt) { |
| 281 if (pn > settings.pt) { | |
| 282 alert("no such page (page number too high)"); | |
| 283 settings.pn = oldpn; | |
| 284 return false; | |
| 285 } | |
| 627 | 286 } |
| 629 | 287 // add pn to param list and remove mk and others(?) |
| 288 data.queryParams.pn = pn; | |
| 289 delete data.queryParams.mk; | |
| 290 // then reload | |
| 291 redisplay(data); | |
| 597 | 292 } |
| 598 | 293 }; |
| 597 | 294 |
| 616 | 295 // sets a key to a value (relative values with +/- if relative=true) |
| 296 var setNumValue = function(settings, key, value) { | |
| 634 | 297 if (isNumber(value)) return settings[key] = value; |
| 616 | 298 var sign = value.substring(0,1); |
| 299 if (sign === '+' || sign === '-') { | |
| 630 | 300 if (settings[key] == null) { |
| 301 // this doesn't make much sense but still... | |
| 302 settings[key] = 0; | |
| 303 } | |
| 304 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
| 616 | 305 } else { |
| 306 settings[key] = value; | |
| 630 | 307 } |
| 616 | 308 return settings[key]; |
| 630 | 309 }; |
| 616 | 310 |
| 601 | 311 // returns parameters from page url |
| 600 | 312 var parseQueryParams = function() { |
| 629 | 313 return parseQueryString(window.location.search.slice(1)); |
| 314 }; | |
| 600 | 315 |
| 629 | 316 // returns parameters from embedded img-element |
| 600 | 317 var parseImgParams = function($elem) { |
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318 var src = $elem.find('img').first().attr('src'); |
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319 if (!src) { |
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320 return null; |
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321 } |
| 600 | 322 var pos = src.indexOf('?'); |
| 323 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 324 var scalerUrl = src.substring(0, pos); | |
| 620 | 325 var params = parseQueryString(query); |
| 326 params.scalerBaseUrl = scalerUrl; | |
| 327 return params; | |
| 629 | 328 }; |
| 600 | 329 |
| 601 | 330 // parses query parameter string into parameter object |
| 600 | 331 var parseQueryString = function(query) { |
| 332 var pairs = query.split("&"); | |
| 620 | 333 var params = {}; |
| 629 | 334 //var keys = []; |
| 600 | 335 for (var i = 0; i < pairs.length; i++) { |
| 336 var pair = pairs[i].split("="); | |
| 337 if (pair.length === 2) { | |
| 620 | 338 params[pair[0]] = pair[1]; |
| 629 | 339 //keys.push(pair[0]); |
| 627 | 340 } |
| 629 | 341 } |
| 620 | 342 return params; |
| 629 | 343 }; |
| 597 | 344 |
| 608 | 345 // returns a query string from key names from a parameter hash |
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346 var getParamString = function (settings, keys) { |
| 608 | 347 var paramString = ''; |
| 348 var latter = false; | |
| 349 for (i = 0; i < keys.length; ++i) { | |
| 350 var key = keys[i]; | |
| 351 if (settings[key]) { | |
| 352 // first param gets no '&' | |
| 353 paramString += latter ? '&' : ''; | |
| 354 latter = true; | |
| 355 // add parm=val | |
| 356 paramString += key + '=' + settings[key]; | |
| 627 | 357 } |
| 608 | 358 } |
| 359 return paramString; | |
| 624 | 360 }; |
| 361 | |
| 629 | 362 // returns URL and query string for Scaler |
| 363 var getScalerUrl = function (data) { | |
| 364 var settings = data.settings; | |
| 365 var keys = settings.scalerParamNames; | |
| 366 var queryString = getParamString(settings, keys); | |
| 367 var url = settings.scalerBaseUrl + '?' + queryString; | |
| 368 return url; | |
| 369 }; | |
| 370 | |
| 371 // returns URL and query string for current digilib | |
| 372 var getDigilibUrl = function (data) { | |
| 373 var settings = data.settings; | |
| 374 // make list from queryParams keys | |
| 375 var keys = []; | |
| 376 for (var k in data.queryParams) { | |
| 377 keys.push(k); | |
| 378 } | |
| 379 var queryString = getParamString(settings, keys); | |
| 380 var url = window.location.toString(); | |
| 381 var pos = url.indexOf('?'); | |
| 382 var baseUrl = url.substring(0, pos); | |
| 383 var newurl = baseUrl + '?' + queryString; | |
| 384 return newurl; | |
| 385 }; | |
| 386 | |
| 624 | 387 // processes some parameters into objects and stuff |
| 388 var unpackParams = function (data) { | |
| 389 var settings = data.settings; | |
| 629 | 390 // zoom area |
| 624 | 391 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 392 settings.zoomArea = zoomArea; | |
| 629 | 393 // marks |
| 624 | 394 var marks = []; |
| 626 | 395 var mk = settings.mk || ''; |
| 396 if (mk.indexOf(";") >= 0) { | |
| 397 var pa = mk.split(";"); // old format with ";" | |
| 624 | 398 } else { |
| 626 | 399 var pa = mk.split(","); // new format |
| 624 | 400 } |
| 401 for (var i = 0; i < pa.length ; i++) { | |
| 402 var pos = pa[i].split("/"); | |
| 626 | 403 if (pos.length > 1) { |
| 404 marks.push(geom.position(pos[0], pos[1])); | |
| 405 } | |
| 624 | 406 } |
| 407 settings.marks = marks; | |
| 408 }; | |
| 409 | |
| 410 // put objects back into parameters | |
| 411 var packParams = function (data) { | |
| 412 var settings = data.settings; | |
| 629 | 413 // zoom area |
| 624 | 414 if (settings.zoomArea) { |
| 415 settings.wx = settings.zoomArea.x; | |
| 416 settings.wy = settings.zoomArea.y; | |
| 417 settings.ww = settings.zoomArea.width; | |
| 418 settings.wh = settings.zoomArea.height; | |
| 419 } | |
| 629 | 420 // marks |
| 624 | 421 if (settings.marks) { |
| 422 var ma = []; | |
| 423 for (var i = 0; i < settings.marks.length; i++) { | |
| 424 ma.push(cropFloat(settings.marks[i].x) + "/" + cropFloat(settings.marks[i].y)); | |
| 425 } | |
| 426 settings.mk = ma.join(","); | |
| 427 } | |
| 428 }; | |
| 429 | |
| 602 | 430 // returns maximum size for scaler img in fullscreen mode |
| 431 var getFullscreenImgSize = function($elem) { | |
| 432 var winH = $(window).height(); | |
| 433 var winW = $(window).width(); | |
| 434 // TODO: account for borders? | |
| 435 return geom.size(winW, winH); | |
| 601 | 436 }; |
| 437 | |
| 615 | 438 // (re)load the img from a new scaler URL |
| 629 | 439 var redisplay = function (data) { |
| 440 var settings = data.settings; | |
| 441 if (settings.interactionMode === 'fullscreen') { | |
| 442 // update location.href (browser URL) in fullscreen mode | |
| 443 var url = getDigilibUrl(data); | |
| 444 var history = window.history; | |
| 445 if (typeof(history.pushState) === 'function') { | |
| 446 console.debug("we could modify history, but we don't..."); | |
| 447 } | |
| 448 window.location = url; | |
| 449 } else { | |
| 450 // embedded mode -- just change img src | |
| 451 var url = getScalerUrl(data); | |
| 452 data.$img.attr('src', url); | |
| 453 } | |
| 615 | 454 }; |
| 455 | |
| 601 | 456 // creates HTML structure for digilib in elem |
| 620 | 457 var setupScalerDiv = function (data) { |
| 458 var settings = data.settings; | |
| 459 var $elem = data.target; | |
| 616 | 460 var $img; |
| 601 | 461 if (settings.interactionMode === 'fullscreen') { |
| 602 | 462 // fullscreen |
| 463 var imgSize = getFullscreenImgSize($elem); | |
| 464 settings.dw = imgSize.width; | |
| 465 settings.dh = imgSize.height; | |
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466 $img = $('<img/>'); |
| 629 | 467 var scalerUrl = getScalerUrl(data); |
| 468 $img.attr('src', scalerUrl); | |
| 602 | 469 } else { |
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470 // embedded mode -- try to keep img tag |
| 616 | 471 $img = $elem.find('img'); |
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472 if ($img.length > 0) { |
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473 console.debug("img detach:",$img); |
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474 $img.detach(); |
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475 } else { |
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476 $img = $('<img/>'); |
| 629 | 477 var scalerUrl = getScalerUrl(data); |
| 478 $img.attr('src', scalerUrl); | |
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479 } |
| 601 | 480 } |
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481 // create new html |
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482 $elem.empty(); // TODO: should we keep stuff for customization? |
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483 var $scaler = $('<div class="scaler"/>'); |
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484 $elem.append($scaler); |
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485 $scaler.append($img); |
| 615 | 486 $img.addClass('pic'); |
| 629 | 487 data.$img = $img; |
| 488 $img.load(scalerImgLoadedHandler(data)); | |
| 601 | 489 }; |
| 608 | 490 |
| 603 | 491 // creates HTML structure for buttons in elem |
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492 var setupButtons = function (data, actionGroup) { |
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493 var $elem = data.target; |
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494 var settings = data.settings; |
| 603 | 495 if (settings.interactionMode === 'fullscreen') { |
| 496 // fullscreen -- create new | |
| 605 | 497 var $buttonsDiv = $('<div class="buttons"></div>'); |
| 498 $elem.append($buttonsDiv); | |
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499 var actionNames = settings[actionGroup]; |
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500 for (var i = 0; i < actionNames.length; i++) { |
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501 var actionName = actionNames[i]; |
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502 var actionSettings = settings.actions[actionName]; |
| 605 | 503 // construct the button html |
| 504 var $button = $('<div class="button"></div>'); | |
| 505 var $a = $('<a/>'); | |
| 607 | 506 var $img = $('<img class="button"/>'); |
| 605 | 507 $buttonsDiv.append($button); |
| 508 $button.append($a); | |
| 509 $a.append($img); | |
| 510 // add attributes and bindings | |
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511 $button.attr('title', actionSettings.tooltip); |
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512 $button.addClass('button-' + actionName); |
| 628 | 513 // create handler for the buttons |
| 514 $a.bind('click', (function () { | |
| 515 // we create a new closure to capture the value of method | |
| 516 var method = actionSettings.onclick; | |
| 612 | 517 if ($.isArray(method)) { |
| 628 | 518 // the handler function calls digilib with method and parameters |
| 519 return function () { | |
| 520 console.debug('click method=', method); | |
| 521 $elem.digilib.apply($elem, method); | |
| 612 | 522 }; |
| 628 | 523 } else { |
| 524 // the handler function calls digilib with method | |
| 525 return function () { | |
| 526 console.debug('click method=', method); | |
| 527 $elem.digilib(method); | |
| 528 }; | |
| 529 } | |
| 530 })()); | |
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531 $img.attr('src', settings.buttonsImagePath + actionSettings.img); |
| 630 | 532 } |
| 604 | 533 } |
| 605 | 534 return $buttonsDiv; |
| 603 | 535 }; |
| 608 | 536 |
| 537 // creates HTML structure for the bird's eye view in elem | |
| 631 | 538 var setupBirdDiv = function (data) { |
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539 var $elem = data.target; |
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540 var settings = data.settings; |
| 608 | 541 // use only the relevant parameters |
| 542 var keys = ['fn','pn','dw','dh']; | |
| 632 | 543 var birdSettings = $.extend({}, settings, settings.birdDivOptions); |
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544 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
| 608 | 545 // the bird's eye div |
| 618 | 546 var $birdviewDiv = $('<div class="birdview" style="display:none"/>'); |
| 608 | 547 // the detail indicator frame |
| 548 var $birdzoomDiv = $('<div class="birdzoom"/>'); | |
| 549 // the small image | |
| 550 var $birdImg = $('<img class="birdimg"/>'); | |
| 551 $elem.append($birdviewDiv); | |
| 552 $birdviewDiv.append($birdzoomDiv); | |
| 553 $birdviewDiv.append($birdImg); | |
| 554 $birdImg.attr('src', birdUrl); | |
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555 if (data.settings.isBirdDivVisible) { |
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556 $birdviewDiv.fadeIn(); |
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557 } |
| 628 | 558 data.$birdDiv = $birdviewDiv; |
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559 }; |
| 608 | 560 |
| 618 | 561 // creates HTML structure for the about view in elem |
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562 var setupAboutDiv = function (data) { |
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563 var $elem = data.target; |
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564 var settings = data.settings; |
| 618 | 565 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 609 | 566 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 567 var $link = $('<a/>'); | |
| 568 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 569 var $content = $('<p/>'); | |
| 570 $elem.append($aboutDiv); | |
| 571 $aboutDiv.append($header); | |
| 572 $aboutDiv.append($link); | |
| 573 $aboutDiv.append($content); | |
| 574 $link.append($logo); | |
| 575 $logo.attr('src', settings.logoUrl); | |
| 628 | 576 $link.attr('href', settings.homeUrl); |
| 609 | 577 $content.text('Version: ' + settings.version); |
| 628 | 578 // click hides |
| 579 $aboutDiv.bind('click', function () { showDiv(settings.isAboutDivVisible, $aboutDiv, 0); }); | |
| 580 data.$aboutDiv = $aboutDiv; | |
| 627 | 581 }; |
| 582 | |
| 628 | 583 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 584 var showDiv = function (isVisible, $div, show) { | |
| 585 if (typeof(show) !== 'number') { | |
| 586 // toggle visibility | |
| 587 isVisible = !isVisible; | |
| 588 } else { | |
| 589 // set visibility | |
| 590 isVisible = show; | |
| 591 } | |
| 592 if (isVisible) { | |
| 593 $div.fadeIn(); | |
| 594 } else { | |
| 595 $div.fadeOut(); | |
| 596 } | |
| 597 return isVisible; | |
| 627 | 598 }; |
| 609 | 599 |
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600 // returns function for load event of scaler img |
| 629 | 601 var scalerImgLoadedHandler = function (data) { |
| 620 | 602 var settings = data.settings; |
| 603 var $elem = data.target; | |
| 629 | 604 var $img = data.$img; |
| 620 | 605 |
| 626 | 606 return function () { |
| 620 | 607 console.debug("img loaded! this=", this, " data=", data); |
| 624 | 608 var area = settings.zoomArea; |
| 620 | 609 // create Transform from current area and picsize |
| 610 var picpos = $img.offset(); | |
| 611 var picrect = geom.rectangle(picpos.left, picpos.top, $img.width(), $img.height()); | |
| 612 var trafo = geom.transform(); | |
| 613 // subtract area offset and size | |
| 614 trafo.concat(trafo.getTranslation(geom.position(area.x, area.y))); | |
| 615 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); | |
| 616 // scale to screen size | |
| 617 trafo.concat(trafo.getScale(picrect)); | |
| 618 trafo.concat(trafo.getTranslation(picrect)); | |
| 619 data.imgTrafo = trafo; | |
| 620 // display marks | |
| 626 | 621 renderMarks(data); |
| 628 | 622 // show birds eye view |
| 623 //showDiv(settings.isBirdDivVisible); | |
| 620 | 624 //digilib.showArrows(); // show arrow overlays for zoom navigation |
| 634 | 625 // done -- hide about div --- |
| 626 // --- why? This only leads to suprise effects when displayed programmatically | |
| 627 // settings.isAboutDivVisible = showDiv(null, data.$aboutDiv, 0); | |
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628 }; |
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629 }; |
| 626 | 630 |
| 631 // place marks on the image | |
| 632 var renderMarks = function (data) { | |
| 633 var $elem = data.target; | |
| 634 var marks = data.settings.marks; | |
| 635 for (var i = 0; i < marks.length; i++) { | |
| 636 var mark = marks[i]; | |
| 637 if (data.settings.zoomArea.containsPosition(mark)) { | |
| 638 var mpos = data.imgTrafo.transform(mark); | |
| 639 // create mark | |
| 640 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 641 var $mark = $(html); | |
| 642 $elem.append($mark); | |
| 643 $mark.offset({ left : mpos.x, top : mpos.y}); | |
| 644 } | |
| 645 } | |
| 646 }; | |
| 624 | 647 |
| 634 | 648 // auxiliary function (from Douglas Crockford, A.10) |
| 649 var isNumber = function isNumber(value) { | |
| 650 return typeof value === 'number' && isFinite(value); | |
| 651 }; | |
| 652 | |
| 624 | 653 // auxiliary function to crop senseless precision |
| 654 var cropFloat = function (x) { | |
| 630 | 655 return parseInt(10000 * x, 10) / 10000; |
| 624 | 656 }; |
| 629 | 657 |
| 598 | 658 // hook plugin into jquery |
| 659 $.fn.digilib = function(method) { | |
| 660 if (methods[method]) { | |
| 627 | 661 // call method on this with the remaining arguments |
| 598 | 662 return methods[method].apply(this, Array.prototype.slice.call(arguments, 1)); |
| 663 } else if (typeof(method) === 'object' || !method) { | |
| 627 | 664 // call init on this |
| 598 | 665 return methods.init.apply(this, arguments); |
| 666 } else { | |
| 627 | 667 $.error( 'Method ' + method + ' does not exist on jQuery.digilib' ); |
| 598 | 668 } |
| 669 }; | |
| 597 | 670 |
| 671 })(jQuery); |