Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 675:5c7f90a3c552 jquery
infrastructure for switchable button sets
| author | robcast |
|---|---|
| date | Wed, 26 Jan 2011 10:56:45 +0100 |
| parents | 0698b6b32b9b |
| children | 95f531b91fe7 |
| rev | line source |
|---|---|
| 597 | 1 /* |
| 2 * digilib jQuery plugin | |
| 3 * | |
| 4 */ | |
| 648 | 5 |
| 629 | 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 buttons = { |
| 603 | 17 reference : { |
| 18 onclick : "javascript:getRefWin()", | |
| 19 tooltip : "get a reference URL", | |
| 20 img : "reference.png" | |
| 21 }, | |
| 22 zoomin : { | |
| 636 | 23 onclick : ["zoomBy", 1.4], |
| 603 | 24 tooltip : "zoom in", |
| 25 img : "zoom-in.png" | |
| 26 }, | |
| 27 zoomout : { | |
| 636 | 28 onclick : ["zoomBy", 0.7], |
| 603 | 29 tooltip : "zoom out", |
| 30 img : "zoom-out.png" | |
| 31 }, | |
| 32 zoomarea : { | |
| 647 | 33 onclick : "zoomArea", |
| 603 | 34 tooltip : "zoom area", |
| 35 img : "zoom-area.png" | |
| 36 }, | |
| 37 zoomfull : { | |
| 643 | 38 onclick : "zoomFull", |
| 603 | 39 tooltip : "view the whole image", |
| 40 img : "zoom-full.png" | |
| 41 }, | |
| 42 pagewidth : { | |
| 643 | 43 onclick : ["zoomFull", "width"], |
| 603 | 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 : { | |
| 640 | 78 onclick : "setMark", |
| 603 | 79 tooltip : "set a mark", |
| 80 img : "mark.png" | |
| 81 }, | |
| 82 delmark : { | |
| 643 | 83 onclick : "removeMark", |
| 603 | 84 tooltip : "delete the last mark", |
| 85 img : "delmark.png" | |
| 86 }, | |
| 87 hmir : { | |
| 654 | 88 onclick : ["mirror", "h"], |
| 603 | 89 tooltip : "mirror horizontally", |
| 90 img : "mirror-horizontal.png" | |
| 91 }, | |
| 92 vmir : { | |
| 654 | 93 onclick : ["mirror", "v"], |
| 603 | 94 tooltip : "mirror vertically", |
| 95 img : "mirror-vertical.png" | |
| 96 }, | |
| 97 rot : { | |
| 656 | 98 onclick : "rotate", |
| 603 | 99 tooltip : "rotate image", |
| 100 img : "rotate.png" | |
| 101 }, | |
| 102 brgt : { | |
| 656 | 103 onclick : "brightness", |
| 603 | 104 tooltip : "set brightness", |
| 105 img : "brightness.png" | |
| 106 }, | |
| 107 cont : { | |
| 656 | 108 onclick : "contrast", |
| 603 | 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 = { |
| 609 | 148 // version of this script |
| 628 | 149 'version' : 'jquery.digilib.js 0.9', |
| 609 | 150 // logo url |
| 151 'logoUrl' : '../img/digilib-logo-text1.png', | |
| 628 | 152 // homepage url (behind logo) |
| 153 'homeUrl' : 'http://digilib.berlios.de', | |
| 603 | 154 // base URL to Scaler servlet |
| 645 | 155 'scalerBaseUrl' : null, |
| 603 | 156 // list of Scaler parameters |
| 620 | 157 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
| 158 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
| 159 // Scaler parameter defaults | |
| 636 | 160 'pn' : 1, |
| 620 | 161 'ww' : 1.0, |
| 162 'wh' : 1.0, | |
| 163 'wx' : 0.0, | |
| 164 'wy' : 0.0, | |
| 165 'ws' : 1.0, | |
| 636 | 166 'mo' : '', |
| 167 'rot' : 0, | |
| 168 'cont' : 0, | |
| 169 'brgt' : 0, | |
| 170 'rgbm' : '0/0/0', | |
| 171 'rgba' : '0/0/0', | |
| 172 'ddpi' : null, | |
| 173 'ddpix' : null, | |
| 174 'ddpiy' : null, | |
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175 // list of digilib parameters |
| 643 | 176 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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177 // digilib parameter defaults |
| 636 | 178 'mk' : '', |
| 643 | 179 'clop' : '', |
| 636 | 180 // mode of operation: |
| 181 // fullscreen = take parameters from page URL, keep state in page URL | |
| 182 // embedded = take parameters from Javascript options, keep state inside object | |
| 603 | 183 'interactionMode' : 'fullscreen', |
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184 // buttons |
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185 'buttons' : buttons, |
| 661 | 186 // defaults for digilib buttons |
| 658 | 187 'buttonSettings' : { |
| 188 'fullscreen' : { | |
| 661 | 189 // path to button images (must end with a slash) |
| 658 | 190 'imagePath' : 'img/fullscreen/', |
| 191 //'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","options"], | |
| 192 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","mark","delmark","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","calibrationx","scale","bird","help","options"], | |
| 193 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","options"], | |
| 675 | 194 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 195 }, |
| 196 'embedded' : { | |
| 197 'imagePath' : 'img/embedded/16/', | |
| 198 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","scale","bird","help","options"], | |
| 199 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","options"], | |
| 675 | 200 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 201 } |
| 202 }, | |
| 645 | 203 // button groups |
| 609 | 204 // is birdView shown? |
| 205 'isBirdDivVisible' : false, | |
| 661 | 206 // dimensions of bird's eye div |
| 667 | 207 'birdDivWidth' : 200, |
| 208 'birdDivHeight' : 200, | |
| 661 | 209 // style of the zoom area indicator in the bird's eye div |
| 652 | 210 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
| 661 | 211 // style of zoom area "rubber band" |
| 212 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
| 609 | 213 // is the "about" window shown? |
| 214 'isAboutDivVisible' : false | |
| 215 | |
| 603 | 216 }; |
| 648 | 217 |
| 601 | 218 // affine geometry classes |
| 219 var geom = dlGeometry(); | |
| 648 | 220 |
| 636 | 221 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
| 648 | 222 |
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223 var actions = { |
| 661 | 224 // init: digilib initialization |
| 225 init : function(options) { | |
| 226 // settings for this digilib instance are merged from defaults and options | |
| 227 var settings = $.extend({}, defaults, options); | |
| 228 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
| 229 var queryParams = {}; | |
| 230 if (isFullscreen) { | |
| 231 queryParams = parseQueryParams(); | |
| 232 // check scalerBaseUrl | |
| 233 if (settings.scalerBaseUrl == null) { | |
| 234 // try the host this came from | |
| 235 var h = window.location.host; | |
| 236 if (window.location.host) { | |
| 237 var url = window.location.href; | |
| 238 // assume the page lives in [webapp]/jquery/ | |
| 239 var pos = url.indexOf('jquery/'); | |
| 240 if (pos > 0) { | |
| 241 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
| 645 | 242 } |
| 243 } | |
| 629 | 244 } |
| 661 | 245 } |
| 246 return this.each(function() { | |
| 247 var $elem = $(this); | |
| 248 var data = $elem.data('digilib'); | |
| 249 var elemSettings; | |
| 250 // if the plugin hasn't been initialized yet | |
| 251 if (!data) { | |
| 252 // merge query parameters | |
| 253 if (isFullscreen) { | |
| 254 elemSettings = $.extend({}, settings, queryParams); | |
| 255 } else { | |
| 256 elemSettings = $.extend({}, settings, parseImgParams($elem)); | |
| 597 | 257 } |
| 661 | 258 // store $(this) element in the settings |
| 259 data = { | |
| 260 $elem : $elem, | |
| 261 settings : elemSettings, | |
| 262 queryParams : queryParams | |
| 263 }; | |
| 264 // store in data element | |
| 265 $elem.data('digilib', data); | |
| 266 } | |
| 267 unpackParams(data); | |
| 675 | 268 // create HTML structure for scaler |
| 661 | 269 setupScalerDiv(data); |
| 675 | 270 // HTML for buttons (default is first button set) |
| 271 setupButtons(data, 0); | |
| 661 | 272 // bird's eye view creation |
| 273 if (elemSettings.isBirdDivVisible) { | |
| 631 | 274 setupBirdDiv(data); |
| 275 } | |
| 661 | 276 // about window creation - TODO: could be deferred? restrict to only one item? |
| 277 setupAboutDiv(data); | |
| 278 }); | |
| 279 }, | |
| 280 | |
| 281 // destroy: clean up digilib | |
| 282 destroy : function(data) { | |
| 283 return this.each(function(){ | |
| 284 var $elem = $(this); | |
| 285 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
| 286 data.digilib.remove(); | |
| 287 $elem.removeData('digilib'); | |
| 288 }); | |
| 289 }, | |
| 290 | |
| 291 // show or hide the 'about' window | |
| 292 showAboutDiv : function(data, show) { | |
| 293 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
| 294 }, | |
| 648 | 295 |
| 661 | 296 // event handler: toggles the visibility of the bird's eye window |
| 297 showBirdDiv : function (data, show) { | |
| 298 if (data.$birdDiv == null) { | |
| 299 // no bird div -> create | |
| 300 setupBirdDiv(data); | |
| 301 } | |
| 302 // TODO: keep bird view visible after reload (parameter, cookie?) | |
| 303 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
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304 data.$birdImg.triggerHandler('load'); |
| 661 | 305 }, |
| 306 | |
| 307 // goto given page nr (+/-: relative) | |
| 308 gotoPage : function (data, pageNr) { | |
| 309 var settings = data.settings; | |
| 310 var oldpn = settings.pn; | |
| 311 var pn = setNumValue(settings, "pn", pageNr); | |
| 312 if (pn == null) return false; // nothing happened | |
| 313 if (pn < 1) { | |
| 314 alert("no such page (page number too low)"); | |
| 315 settings.pn = oldpn; | |
| 316 return false; | |
| 317 } | |
| 318 if (settings.pt) { | |
| 319 if (pn > settings.pt) { | |
| 320 alert("no such page (page number too high)"); | |
| 616 | 321 settings.pn = oldpn; |
| 322 return false; | |
| 627 | 323 } |
| 661 | 324 } |
| 325 // reset mk and others(?) | |
| 326 data.marks = []; | |
| 327 data.zoomArea = MAX_ZOOMAREA; | |
| 328 // then reload | |
| 329 redisplay(data); | |
| 330 }, | |
| 647 | 331 |
| 661 | 332 // zoom by a given factor |
| 333 zoomBy : function (data, factor) { | |
| 334 zoomBy(data, factor); | |
| 335 }, | |
| 640 | 336 |
| 661 | 337 // zoom interactively |
| 338 zoomArea : function (data) { | |
| 339 zoomArea(data); | |
| 340 }, | |
| 643 | 341 |
| 661 | 342 // zoom out to full page |
| 343 zoomFull : function (data, mode) { | |
| 344 data.zoomArea = MAX_ZOOMAREA; | |
| 345 if (mode === 'width') { | |
| 346 data.dlOpts.fitwidth = 1; | |
| 347 delete data.dlOpts.fitheight; | |
| 348 } else if (mode === 'height') { | |
| 349 data.dlOpts.fitheight = 1; | |
| 350 delete data.dlOpts.fitwidth; | |
| 351 } else { | |
| 352 delete data.dlOpts.fitwidth; | |
| 353 delete data.dlOpts.fitheight; | |
| 354 } | |
| 355 redisplay(data); | |
| 356 }, | |
| 357 | |
| 358 // set a mark by clicking (or giving a position) | |
| 359 setMark : function (data, mpos) { | |
| 360 if (mpos == null) { | |
| 361 // interactive | |
| 362 setMark(data); | |
| 363 } else { | |
| 364 // use position | |
| 365 data.marks.push(pos); | |
| 656 | 366 redisplay(data); |
| 597 | 367 } |
| 661 | 368 }, |
| 369 | |
| 370 // remove the last mark | |
| 371 removeMark : function (data) { | |
| 372 data.marks.pop(); | |
| 373 redisplay(data); | |
| 374 }, | |
| 375 | |
| 376 // mirror the image | |
| 377 mirror : function (data, mode) { | |
| 378 var flags = data.scalerFlags; | |
| 379 if (mode === 'h') { | |
| 380 if (flags.hmir) { | |
| 381 delete flags.hmir; | |
| 382 } else { | |
| 383 flags.hmir = 1; | |
| 384 } | |
| 385 } else { | |
| 386 if (flags.vmir) { | |
| 387 delete flags.vmir; | |
| 388 } else { | |
| 389 flags.vmir = 1; | |
| 390 } | |
| 391 } | |
| 392 redisplay(data); | |
| 393 }, | |
| 643 | 394 |
| 661 | 395 // rotate the image |
| 396 rotate : function (data, angle) { | |
| 397 var rot = data.settings.rot; | |
| 398 if (angle == null) { | |
| 399 angle = window.prompt("Rotation angle:", rot); | |
| 400 } | |
| 401 data.settings.rot = angle; | |
| 402 redisplay(data); | |
| 403 }, | |
| 404 | |
| 405 // change brightness | |
| 406 brightness : function (data, factor) { | |
| 407 var brgt = data.settings.brgt; | |
| 408 if (factor == null) { | |
| 409 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 410 } | |
| 411 data.settings.brgt = factor; | |
| 412 redisplay(data); | |
| 413 }, | |
| 414 | |
| 415 // change contrast | |
| 416 contrast : function (data, factor) { | |
| 417 var cont = data.settings.cont; | |
| 418 if (factor == null) { | |
| 419 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 420 } | |
| 421 data.settings.cont = factor; | |
| 422 redisplay(data); | |
| 423 } | |
| 598 | 424 }; |
| 597 | 425 |
| 601 | 426 // returns parameters from page url |
| 600 | 427 var parseQueryParams = function() { |
| 629 | 428 return parseQueryString(window.location.search.slice(1)); |
| 429 }; | |
| 648 | 430 |
| 629 | 431 // returns parameters from embedded img-element |
| 600 | 432 var parseImgParams = function($elem) { |
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433 var src = $elem.find('img').first().attr('src'); |
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434 if (!src) { |
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435 return null; |
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436 } |
| 600 | 437 var pos = src.indexOf('?'); |
| 438 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 439 var scalerUrl = src.substring(0, pos); | |
| 620 | 440 var params = parseQueryString(query); |
| 441 params.scalerBaseUrl = scalerUrl; | |
| 442 return params; | |
| 629 | 443 }; |
| 600 | 444 |
| 601 | 445 // parses query parameter string into parameter object |
| 600 | 446 var parseQueryString = function(query) { |
| 447 var pairs = query.split("&"); | |
| 620 | 448 var params = {}; |
| 629 | 449 //var keys = []; |
| 600 | 450 for (var i = 0; i < pairs.length; i++) { |
| 451 var pair = pairs[i].split("="); | |
| 452 if (pair.length === 2) { | |
| 620 | 453 params[pair[0]] = pair[1]; |
| 629 | 454 //keys.push(pair[0]); |
| 627 | 455 } |
| 629 | 456 } |
| 620 | 457 return params; |
| 629 | 458 }; |
| 661 | 459 |
| 636 | 460 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 461 var getParamString = function (settings, keys, defaults) { | |
| 608 | 462 var paramString = ''; |
| 643 | 463 var nx = false; |
| 608 | 464 for (i = 0; i < keys.length; ++i) { |
| 465 var key = keys[i]; | |
| 656 | 466 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 608 | 467 // first param gets no '&' |
| 643 | 468 if (nx) { |
| 469 paramString += '&'; | |
| 470 } else { | |
| 471 nx = true; | |
| 472 } | |
| 608 | 473 // add parm=val |
| 474 paramString += key + '=' + settings[key]; | |
| 636 | 475 } |
| 608 | 476 } |
| 477 return paramString; | |
| 624 | 478 }; |
| 479 | |
| 629 | 480 // returns URL and query string for Scaler |
| 481 var getScalerUrl = function (data) { | |
| 646 | 482 var settings = data.settings; |
| 645 | 483 if (settings.scalerBaseUrl == null) { |
| 484 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
| 485 } | |
| 658 | 486 packParams(data); |
| 629 | 487 var keys = settings.scalerParamNames; |
| 636 | 488 var queryString = getParamString(settings, keys, defaults); |
| 629 | 489 var url = settings.scalerBaseUrl + '?' + queryString; |
| 490 return url; | |
| 491 }; | |
| 492 | |
| 493 // returns URL and query string for current digilib | |
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494 var getDigilibUrl = function (data) { |
| 636 | 495 packParams(data); |
| 629 | 496 var settings = data.settings; |
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497 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 629 | 498 var url = window.location.toString(); |
| 499 var pos = url.indexOf('?'); | |
| 500 var baseUrl = url.substring(0, pos); | |
| 501 var newurl = baseUrl + '?' + queryString; | |
| 502 return newurl; | |
| 503 }; | |
| 504 | |
| 648 | 505 // processes some parameters into objects and stuff |
| 624 | 506 var unpackParams = function (data) { |
| 507 var settings = data.settings; | |
| 629 | 508 // zoom area |
| 624 | 509 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 636 | 510 data.zoomArea = zoomArea; |
| 629 | 511 // marks |
| 624 | 512 var marks = []; |
| 643 | 513 if (settings.mk) { |
| 514 var mk = settings.mk; | |
| 515 if (mk.indexOf(";") >= 0) { | |
| 516 var pa = mk.split(";"); // old format with ";" | |
| 517 } else { | |
| 518 var pa = mk.split(","); // new format | |
| 519 } | |
| 520 for (var i = 0; i < pa.length ; i++) { | |
| 521 var pos = pa[i].split("/"); | |
| 522 if (pos.length > 1) { | |
| 523 marks.push(geom.position(pos[0], pos[1])); | |
| 524 } | |
| 626 | 525 } |
| 624 | 526 } |
| 636 | 527 data.marks = marks; |
| 643 | 528 // mo (Scaler flags) |
| 529 var flags = {}; | |
| 530 if (settings.mo) { | |
| 531 var pa = settings.mo.split(","); | |
| 532 for (var i = 0; i < pa.length ; i++) { | |
| 533 flags[pa[i]] = pa[i]; | |
| 534 } | |
| 535 } | |
| 536 data.scalerFlags = flags; | |
| 537 // clop (digilib options) | |
| 538 var opts = {}; | |
| 539 if (settings.clop) { | |
| 540 var pa = settings.clop.split(","); | |
| 541 for (var i = 0; i < pa.length ; i++) { | |
| 542 opts[pa[i]] = pa[i]; | |
| 543 } | |
| 544 } | |
| 545 data.dlOpts = opts; | |
| 654 | 546 // birdview option |
| 547 if (opts.birdview) { | |
| 548 settings.isBirdDivVisible = 1; | |
| 549 } | |
| 648 | 550 }; |
| 551 | |
| 624 | 552 // put objects back into parameters |
| 553 var packParams = function (data) { | |
| 554 var settings = data.settings; | |
| 629 | 555 // zoom area |
| 636 | 556 if (data.zoomArea) { |
| 640 | 557 settings.wx = cropFloat(data.zoomArea.x); |
| 558 settings.wy = cropFloat(data.zoomArea.y); | |
| 559 settings.ww = cropFloat(data.zoomArea.width); | |
| 560 settings.wh = cropFloat(data.zoomArea.height); | |
| 624 | 561 } |
| 629 | 562 // marks |
| 636 | 563 if (data.marks) { |
| 643 | 564 settings.mk = ''; |
| 636 | 565 for (var i = 0; i < data.marks.length; i++) { |
| 643 | 566 if (i) { |
| 567 settings.mk += ','; | |
| 568 } | |
| 569 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
| 624 | 570 } |
| 643 | 571 } |
| 572 // Scaler flags | |
| 573 if (data.scalerFlags) { | |
| 574 var mo = ''; | |
| 575 for (var f in data.scalerFlags) { | |
| 576 if (mo) { | |
| 577 mo += ','; | |
| 578 } | |
| 579 mo += f; | |
| 580 } | |
| 581 settings.mo = mo; | |
| 582 } | |
| 654 | 583 // digilib option birdview |
| 584 if (settings.isBirdDivVisible) { | |
| 585 data.dlOpts.birdview = 1; | |
| 655 | 586 } else { |
| 587 delete data.dlOpts.birdview; | |
| 654 | 588 } |
| 643 | 589 // digilib options |
| 590 if (data.dlOpts) { | |
| 591 var clop = ''; | |
| 592 for (var o in data.dlOpts) { | |
| 593 if (clop) { | |
| 594 clop += ','; | |
| 595 } | |
| 596 clop += o; | |
| 597 } | |
| 598 settings.clop = clop; | |
| 624 | 599 } |
| 600 }; | |
| 648 | 601 |
| 615 | 602 // (re)load the img from a new scaler URL |
|
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603 var redisplay = function (data) { |
| 629 | 604 var settings = data.settings; |
| 605 if (settings.interactionMode === 'fullscreen') { | |
| 606 // update location.href (browser URL) in fullscreen mode | |
|
637
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607 var url = getDigilibUrl(data); |
| 629 | 608 var history = window.history; |
| 609 if (typeof(history.pushState) === 'function') { | |
| 610 console.debug("we could modify history, but we don't..."); | |
| 611 } | |
| 612 window.location = url; | |
| 613 } else { | |
| 614 // embedded mode -- just change img src | |
| 615 var url = getScalerUrl(data); | |
| 616 data.$img.attr('src', url); | |
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617 // and update bird's eye view |
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618 //if (settings.isBirdDivVisible) { |
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619 // renderBirdZoom(data); |
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620 //} |
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621 }; |
| 615 | 622 }; |
| 623 | |
| 655 | 624 // returns maximum size for scaler img in fullscreen mode |
| 625 var getFullscreenImgSize = function($elem) { | |
| 626 var $win = $(window); | |
| 627 var winH = $win.height(); | |
| 628 var winW = $win.width(); | |
| 629 // TODO: account for borders? | |
| 630 return geom.size(winW, winH); | |
| 631 }; | |
| 632 | |
| 601 | 633 // creates HTML structure for digilib in elem |
| 620 | 634 var setupScalerDiv = function (data) { |
| 635 var settings = data.settings; | |
| 640 | 636 var $elem = data.$elem; |
| 616 | 637 var $img; |
| 601 | 638 if (settings.interactionMode === 'fullscreen') { |
| 602 | 639 // fullscreen |
| 640 var imgSize = getFullscreenImgSize($elem); | |
| 643 | 641 // fitwidth/height omits destination height/width |
| 642 if (data.dlOpts['fitheight'] == null) { | |
| 643 settings.dw = imgSize.width; | |
| 644 } | |
| 645 if (data.dlOpts['fitwidth'] == null) { | |
| 646 settings.dh = imgSize.height; | |
| 647 } | |
|
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648 $img = $('<img/>'); |
| 629 | 649 var scalerUrl = getScalerUrl(data); |
| 650 $img.attr('src', scalerUrl); | |
| 602 | 651 } else { |
|
606
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652 // embedded mode -- try to keep img tag |
| 616 | 653 $img = $elem.find('img'); |
|
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654 if ($img.length > 0) { |
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655 console.debug("img detach:",$img); |
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656 $img.detach(); |
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657 } else { |
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658 $img = $('<img/>'); |
| 629 | 659 var scalerUrl = getScalerUrl(data); |
| 660 $img.attr('src', scalerUrl); | |
|
606
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661 } |
| 601 | 662 } |
|
606
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663 // create new html |
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664 $elem.empty(); // TODO: should we keep stuff for customization? |
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665 var $scaler = $('<div class="scaler"/>'); |
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666 $elem.append($scaler); |
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667 $scaler.append($img); |
| 615 | 668 $img.addClass('pic'); |
| 642 | 669 data.$scaler = $scaler; |
| 629 | 670 data.$img = $img; |
| 671 $img.load(scalerImgLoadedHandler(data)); | |
| 601 | 672 }; |
| 608 | 673 |
| 603 | 674 // creates HTML structure for buttons in elem |
| 675 | 675 var setupButtons = function (data, buttonSetIdx) { |
| 640 | 676 var $elem = data.$elem; |
|
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677 var settings = data.settings; |
| 658 | 678 var $buttonsDiv = $('<div class="buttons"></div>'); |
| 679 $elem.append($buttonsDiv); | |
| 680 var mode = settings.interactionMode; | |
|
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681 var buttonSettings = settings.buttonSettings[mode]; |
| 675 | 682 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
| 683 var buttonNames = buttonSettings[buttonGroup]; | |
| 684 for (var i = 0; i < buttonNames.length; i++) { | |
| 685 var buttonName = buttonNames[i]; | |
| 686 var buttonConfig = settings.buttons[buttonName]; | |
| 658 | 687 // construct the button html |
| 688 var $button = $('<div class="button"></div>'); | |
| 689 var $a = $('<a/>'); | |
| 690 var $img = $('<img class="button"/>'); | |
| 691 $buttonsDiv.append($button); | |
| 692 $button.append($a); | |
| 693 $a.append($img); | |
| 694 // add attributes and bindings | |
| 695 $button.attr('title', buttonConfig.tooltip); | |
| 675 | 696 $button.addClass('button-' + buttonName); |
| 658 | 697 // create handler for the buttons |
| 698 $a.bind('click.digilib', (function () { | |
| 699 // we create a new closure to capture the value of action | |
| 700 var action = buttonConfig.onclick; | |
| 701 if ($.isArray(action)) { | |
| 702 // the handler function calls digilib with action and parameters | |
| 703 return function (evt) { | |
| 704 console.debug('click action=', action, ' evt=', evt); | |
| 705 $elem.digilib.apply($elem, action); | |
| 706 return false; | |
| 707 }; | |
| 708 } else { | |
| 709 // the handler function calls digilib with action | |
| 710 return function (evt) { | |
| 711 console.debug('click action=', action, ' evt=', evt); | |
| 712 $elem.digilib(action); | |
| 713 return false; | |
| 714 }; | |
| 715 } | |
| 716 })()); | |
| 717 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
| 630 | 718 } |
| 655 | 719 // make buttons div scroll if too large for window |
| 720 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 721 $buttonsDiv.css('position', 'absolute'); | |
| 722 } | |
| 675 | 723 if (data.$buttonSets == null) { |
| 724 data.$buttonSets = [$buttonsDiv]; | |
| 725 data.visibleButtonSets = 1; | |
| 726 } else { | |
| 727 data.$buttonSets[buttonSetIdx] = $buttonsDiv; | |
| 728 } | |
| 605 | 729 return $buttonsDiv; |
| 603 | 730 }; |
| 608 | 731 |
| 732 // creates HTML structure for the bird's eye view in elem | |
| 631 | 733 var setupBirdDiv = function (data) { |
| 640 | 734 var $elem = data.$elem; |
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735 var settings = data.settings; |
| 608 | 736 // use only the relevant parameters |
| 737 var keys = ['fn','pn','dw','dh']; | |
| 667 | 738 var birdDivOptions = { |
| 739 dw : settings.birdDivWidth, | |
| 740 dh : settings.birdDivHeight | |
| 741 }; | |
| 742 var birdSettings = $.extend({}, settings, birdDivOptions); | |
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743 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
| 608 | 744 // the bird's eye div |
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745 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 608 | 746 // the detail indicator frame |
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747 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
| 608 | 748 // the small image |
| 749 var $birdImg = $('<img class="birdimg"/>'); | |
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750 $elem.append($birdDiv); |
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751 $birdDiv.append($birdZoom); |
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752 $birdDiv.append($birdImg); |
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753 $birdZoom.css(data.settings.birdIndicatorStyle); |
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754 data.$birdDiv = $birdDiv; |
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755 data.$birdZoom = $birdZoom; |
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756 data.$birdImg = $birdImg; |
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757 $birdImg.load(birdImgLoadedHandler(data)); |
| 608 | 758 $birdImg.attr('src', birdUrl); |
|
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759 if (data.settings.isBirdDivVisible) { |
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760 $birdDiv.fadeIn(); |
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761 }; |
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762 birdZoom(data); |
|
633
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763 }; |
| 608 | 764 |
| 618 | 765 // creates HTML structure for the about view in elem |
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766 var setupAboutDiv = function (data) { |
| 640 | 767 var $elem = data.$elem; |
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768 var settings = data.settings; |
| 618 | 769 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 609 | 770 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 771 var $link = $('<a/>'); | |
| 772 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 773 var $content = $('<p/>'); | |
| 774 $elem.append($aboutDiv); | |
| 775 $aboutDiv.append($header); | |
| 776 $aboutDiv.append($link); | |
| 777 $aboutDiv.append($content); | |
| 778 $link.append($logo); | |
| 779 $logo.attr('src', settings.logoUrl); | |
| 628 | 780 $link.attr('href', settings.homeUrl); |
| 609 | 781 $content.text('Version: ' + settings.version); |
| 628 | 782 // click hides |
| 642 | 783 $aboutDiv.bind('click.digilib', function () { |
| 639 | 784 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 642 | 785 return false; |
| 786 }); | |
| 628 | 787 data.$aboutDiv = $aboutDiv; |
| 627 | 788 }; |
| 789 | |
| 628 | 790 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 791 var showDiv = function (isVisible, $div, show) { | |
| 638 | 792 if (show == null) { |
| 628 | 793 // toggle visibility |
| 794 isVisible = !isVisible; | |
| 795 } else { | |
| 796 // set visibility | |
| 797 isVisible = show; | |
| 798 } | |
| 799 if (isVisible) { | |
| 800 $div.fadeIn(); | |
| 801 } else { | |
| 802 $div.fadeOut(); | |
| 803 } | |
| 804 return isVisible; | |
| 627 | 805 }; |
| 609 | 806 |
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807 // create Transform from area and $img |
| 668 | 808 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
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809 var picrect = geom.rectangle($img); |
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810 var trafo = geom.transform(); |
| 668 | 811 // move zoom area offset to center |
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812 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 668 | 813 // scale zoom area size to [1,1] |
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814 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 668 | 815 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 816 if (rot || hmir || vmir) { | |
| 817 // move [0.5,0.5] to center | |
| 818 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 819 if (hmir) { | |
| 820 // mirror about center | |
| 821 trafo.concat(trafo.getMirror('y')); | |
| 822 } | |
| 823 if (vmir) { | |
| 824 // mirror about center | |
| 825 trafo.concat(trafo.getMirror('x')); | |
| 826 } | |
| 827 if (rot) { | |
| 828 // rotate around center | |
| 829 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
| 830 } | |
| 831 // move back | |
| 832 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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833 } |
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834 // scale to screen position and size |
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835 trafo.concat(trafo.getScale(picrect)); |
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836 trafo.concat(trafo.getTranslation(picrect)); |
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837 return trafo; |
| 648 | 838 }; |
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839 |
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840 // returns function for load event of scaler img |
| 629 | 841 var scalerImgLoadedHandler = function (data) { |
| 842 var $img = data.$img; | |
| 626 | 843 return function () { |
| 620 | 844 console.debug("img loaded! this=", this, " data=", data); |
| 845 // create Transform from current area and picsize | |
| 668 | 846 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
| 847 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
| 620 | 848 // display marks |
| 626 | 849 renderMarks(data); |
| 620 | 850 //digilib.showArrows(); // show arrow overlays for zoom navigation |
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851 var $birdImg = data.$birdImg; |
|
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852 if ($birdImg) { |
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853 $birdImg.triggerHandler('load'); |
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854 }; |
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855 }; |
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856 }; |
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857 |
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858 // returns function for load event of bird's eye view img |
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859 var birdImgLoadedHandler = function (data) { |
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860 var $img = data.$birdImg; |
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861 return function () { |
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862 console.debug("birdimg loaded! this=", this, " data=", data); |
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863 // create Transform from current area and picsize |
|
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split bird's view code in two more parts, analog to scaler-img code.
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864 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
| 661 | 865 // display red indicator around zoomarea |
|
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866 renderbirdZoom(data); |
|
606
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|
867 }; |
|
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|
868 }; |
| 626 | 869 |
| 870 // place marks on the image | |
| 871 var renderMarks = function (data) { | |
| 640 | 872 var $elem = data.$elem; |
| 636 | 873 var marks = data.marks; |
| 642 | 874 // TODO: clear marks first(?) |
| 626 | 875 for (var i = 0; i < marks.length; i++) { |
| 876 var mark = marks[i]; | |
| 636 | 877 if (data.zoomArea.containsPosition(mark)) { |
| 626 | 878 var mpos = data.imgTrafo.transform(mark); |
|
657
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879 console.debug("renderMarks: mpos=",mpos); |
| 626 | 880 // create mark |
| 881 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 882 var $mark = $(html); | |
| 883 $elem.append($mark); | |
| 647 | 884 $mark.offset({left : mpos.x, top : mpos.y}); |
| 626 | 885 } |
| 886 } | |
| 887 }; | |
| 648 | 888 |
|
670
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889 // show zoom area indicator on bird's eye view |
|
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890 var renderbirdZoom = function (data) { |
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891 var $birdZoom = data.$birdZoom; |
| 652 | 892 var zoomArea = data.zoomArea; |
| 893 var indRect = data.birdTrafo.transform(zoomArea); | |
|
663
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894 var coords = { |
|
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895 left : indRect.x-2, // acount for frame width |
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896 top : indRect.y-2, |
|
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897 width : indRect.width, |
|
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898 height: indRect.height |
|
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899 }; |
|
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900 var normalSize = isFullArea(zoomArea); |
|
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901 if (data.settings.interactionMode === 'fullscreen') { |
|
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902 // no animation for fullscreen |
|
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903 if (normalSize) return $birdZoom.hide(); |
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904 $birdZoom.width(coords.width); |
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905 $birdZoom.height(coords.height); |
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906 $birdZoom.offset(coords); |
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907 $birdZoom.show(); |
|
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908 return; |
|
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|
909 }; |
|
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910 // nice animation for embedded mode :-) |
|
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911 var makeCompleteFunction = function($birdZoom, normalSize) { |
|
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912 return function() { |
|
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913 if (normalSize) $birdZoom.hide(); |
|
665
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914 }; |
|
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915 }; |
|
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916 var opts = { |
|
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917 'complete' : makeCompleteFunction($birdZoom, normalSize) |
|
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918 }; |
|
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919 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
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920 $birdZoom.animate(coords, opts); |
|
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|
921 }; |
| 652 | 922 |
| 640 | 923 // zooms by the given factor |
| 636 | 924 var zoomBy = function(data, factor) { |
| 925 var area = data.zoomArea; | |
| 926 var newarea = area.copy(); | |
| 927 // scale | |
| 928 newarea.width /= factor; | |
| 929 newarea.height /= factor; | |
| 930 // and recenter | |
| 931 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 932 newarea.y -= 0.5 * (newarea.height - area.height); | |
| 933 newarea = MAX_ZOOMAREA.fit(newarea); | |
| 934 data.zoomArea = newarea; | |
|
637
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|
935 redisplay(data); |
| 636 | 936 }; |
| 937 | |
| 640 | 938 // add a mark where clicked |
| 939 var setMark = function (data) { | |
| 642 | 940 var $scaler = data.$scaler; |
| 640 | 941 // start event capturing |
| 642 | 942 $scaler.one('click.digilib', function (evt) { |
| 640 | 943 // event handler adding a new mark |
|
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944 var mpos = geom.position(evt); |
| 640 | 945 var pos = data.imgTrafo.invtransform(mpos); |
| 946 data.marks.push(pos); | |
| 947 redisplay(data); | |
| 642 | 948 return false; // do we even get here? |
| 640 | 949 }); |
| 950 }; | |
| 661 | 951 |
| 647 | 952 var zoomArea = function(data) { |
| 953 $elem = data.$elem; | |
| 954 $scaler = data.$scaler; | |
| 955 var pt1, pt2; | |
| 956 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 957 $elem.append($zoomDiv); | |
| 661 | 958 $zoomDiv.css(data.settings.zoomrectStyle); |
| 647 | 959 var picRect = geom.rectangle($scaler); |
| 960 // FIX ME: is there a way to query the border width from CSS info? | |
| 961 // rect.x -= 2; // account for overlay borders | |
| 962 // rect.y -= 2; | |
| 963 | |
| 964 var zoomStart = function (evt) { | |
| 965 pt1 = geom.position(evt); | |
| 966 // setup and show zoom div | |
| 967 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
| 968 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
| 661 | 969 $zoomDiv.width(0).height(0); |
| 647 | 970 $zoomDiv.show(); |
| 971 // register events | |
| 972 $elem.bind("mousemove.digilib", zoomMove); | |
| 973 $elem.bind("mouseup.digilib", zoomEnd); | |
| 974 return false; | |
| 975 }; | |
| 661 | 976 |
| 647 | 977 // mouseup handler: end moving |
| 978 var zoomEnd = function (evt) { | |
| 979 pt2 = geom.position(evt); | |
| 980 // assume a click and continue if the area is too small | |
| 981 var clickRect = geom.rectangle(pt1, pt2); | |
| 982 if (clickRect.getArea() <= 5) { | |
| 983 return false; | |
| 984 } | |
| 985 // hide zoom div | |
| 986 $zoomDiv.remove(); | |
| 987 // unregister events | |
| 988 $elem.unbind("mousemove.digilib", zoomMove); | |
| 989 $elem.unbind("mouseup.digilib", zoomEnd); | |
| 990 // clip and transform | |
| 991 clickRect.clipTo(picRect); | |
| 992 var area = data.imgTrafo.invtransform(clickRect); | |
| 993 data.zoomArea = area; | |
| 994 // zoomed is always fit | |
| 995 data.settings.ws = 1; | |
| 996 redisplay(data); | |
| 997 return false; | |
| 998 }; | |
| 661 | 999 |
| 647 | 1000 // mouse move handler |
| 1001 var zoomMove = function (evt) { | |
| 1002 pt2 = geom.position(evt); | |
| 1003 var rect = geom.rectangle(pt1, pt2); | |
| 1004 rect.clipTo(picRect); | |
| 1005 // update zoom div | |
|
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|
1006 rect.adjustDiv($zoomDiv); |
| 647 | 1007 return false; |
| 1008 }; | |
| 661 | 1009 |
| 647 | 1010 // bind start zoom handler |
| 1011 $scaler.one('mousedown.digilib', zoomStart); | |
| 1012 }; | |
| 640 | 1013 |
|
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1014 var birdZoom = function(data) { |
|
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|
1015 var $birdImg = data.$birdImg; |
|
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1016 var $birdZoom = data.$birdZoom; |
|
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1017 var startPos, newRect, birdImgRect, birdZoomRect; |
|
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|
1018 |
|
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1019 var birdZoomMove = function(evt) { |
|
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|
1020 // mousemove handler: drag |
|
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|
1021 var pos = geom.position(evt); |
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1022 var dx = pos.x - startPos.x; |
|
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|
1023 var dy = pos.y - startPos.y; |
|
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|
1024 // move birdZoom div, keeping size |
|
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|
1025 newRect = geom.rectangle( |
|
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diff
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|
1026 birdZoomRect.x + dx, |
|
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diff
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|
1027 birdZoomRect.y + dy, |
|
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|
1028 birdZoomRect.width, |
|
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|
1029 birdZoomRect.height |
|
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|
1030 ); |
|
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|
1031 // stay within birdimage |
|
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|
1032 newRect.stayInside(birdImgRect); |
|
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|
1033 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
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|
1034 // $birdZoom.show(); |
|
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|
1035 return false; |
|
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|
1036 }; |
|
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|
1037 |
|
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|
1038 var birdZoomEndDrag = function(evt) { |
|
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|
1039 // mouseup handler: reload page |
|
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|
1040 var settings = data.settings; |
| 673 | 1041 $(document).unbind("mousemove.digilib", birdZoomMove); |
| 1042 $(document).unbind("mouseup.digilib", birdZoomEndDrag); | |
| 1043 $birdZoom.unbind("mousemove.digilib", birdZoomMove); | |
| 1044 $birdZoom.unbind("mouseup.digilib", birdZoomEndDrag); | |
|
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1045 if (newRect == null) { // no movement happened |
|
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1046 startPos = birdZoomRect.getCenter(); |
|
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|
1047 birdZoomMove(evt); // set center to click position |
|
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|
1048 }; |
|
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|
1049 if (data.zoomArea) { |
| 672 | 1050 // should always be true |
| 1051 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
| 1052 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
| 1053 data.zoomArea.x = x; | |
| 1054 data.zoomArea.y = y; | |
|
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1055 }; |
|
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|
1056 settings.ws = 1; // zoomed is always fit |
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|
1057 redisplay(data); |
|
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1058 return false; |
|
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|
1059 }; |
|
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|
1060 |
|
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1061 var birdZoomStartDrag = function(evt) { |
|
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|
1062 // mousedown handler: start dragging bird zoom to a new position |
|
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|
1063 startPos = geom.position(evt); |
|
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1064 birdImgRect = geom.rectangle($birdImg); |
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|
1065 birdZoomRect = geom.rectangle($birdZoom); |
| 673 | 1066 $(document).bind("mousemove.digilib", birdZoomMove); |
| 1067 $(document).bind("mouseup.digilib", birdZoomEndDrag); | |
| 1068 $birdZoom.bind("mousemove.digilib", birdZoomMove); | |
| 1069 $birdZoom.bind("mouseup.digilib", birdZoomEndDrag); | |
|
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1070 return false; |
|
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1071 }; |
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1072 |
| 674 | 1073 $birdImg.bind("mousedown.digilib", birdZoomStartDrag); |
| 1074 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag); | |
|
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1075 }; |
|
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1076 |
| 643 | 1077 // sets a key to a value (relative values with +/- if relative=true) |
| 1078 var setNumValue = function(settings, key, value) { | |
| 1079 if (isNumber(value)) return settings[key] = value; | |
| 1080 var sign = value.substring(0,1); | |
| 1081 if (sign === '+' || sign === '-') { | |
| 1082 if (settings[key] == null) { | |
|
644
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|
1083 // this isn't perfect but still... |
| 643 | 1084 settings[key] = 0; |
| 1085 } | |
| 1086 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
| 1087 } else { | |
| 1088 settings[key] = value; | |
| 1089 } | |
| 1090 return settings[key]; | |
| 1091 }; | |
| 648 | 1092 |
| 1093 // auxiliary function (from old dllib.js) | |
| 652 | 1094 isFullArea = function(area) { |
| 1095 return (area.width === 1.0) && (area.height === 1.0); | |
| 648 | 1096 }; |
| 1097 | |
| 634 | 1098 // auxiliary function (from Douglas Crockford, A.10) |
| 1099 var isNumber = function isNumber(value) { | |
| 1100 return typeof value === 'number' && isFinite(value); | |
| 1101 }; | |
| 648 | 1102 |
| 624 | 1103 // auxiliary function to crop senseless precision |
| 1104 var cropFloat = function (x) { | |
| 630 | 1105 return parseInt(10000 * x, 10) / 10000; |
| 624 | 1106 }; |
| 648 | 1107 |
| 598 | 1108 // hook plugin into jquery |
|
644
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|
1109 $.fn.digilib = function(action) { |
|
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1110 if (actions[action]) { |
|
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|
1111 // call action on this with the remaining arguments (inserting data as first argument) |
|
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|
1112 var $elem = $(this); |
|
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1113 var data = $elem.data('digilib'); |
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1114 var args = Array.prototype.slice.call(arguments, 1); |
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1115 args.unshift(data); |
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1116 return actions[action].apply(this, args); |
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1117 } else if (typeof(action) === 'object' || !action) { |
| 627 | 1118 // call init on this |
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1119 return actions.init.apply(this, arguments); |
| 598 | 1120 } else { |
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1121 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
| 598 | 1122 } |
| 1123 }; | |
| 597 | 1124 |
| 1125 })(jQuery); |