Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 661:692b1191f89a jquery
make zoomarea and birdview work in embedded mode
| author | hertzhaft |
|---|---|
| date | Mon, 24 Jan 2011 09:48:27 +0100 |
| parents | 934da7e40031 |
| children | f595a13c13af |
| 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"], | |
| 194 'customSet' : [] | |
| 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"], | |
| 200 'customSet' : [] | |
| 201 } | |
| 202 }, | |
| 645 | 203 // button groups |
| 609 | 204 // is birdView shown? |
| 205 'isBirdDivVisible' : false, | |
| 661 | 206 // dimensions of bird's eye div |
| 632 | 207 'birdDivOptions' : {'dw' : 200, 'dh' : 200}, |
| 661 | 208 // style of the zoom area indicator in the bird's eye div |
| 652 | 209 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
| 661 | 210 // style of zoom area "rubber band" |
| 211 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
| 609 | 212 // is the "about" window shown? |
| 213 'isAboutDivVisible' : false | |
| 214 | |
| 603 | 215 }; |
| 648 | 216 |
| 601 | 217 // affine geometry classes |
| 218 var geom = dlGeometry(); | |
| 648 | 219 |
| 636 | 220 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
| 648 | 221 |
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222 var actions = { |
| 661 | 223 // init: digilib initialization |
| 224 init : function(options) { | |
| 225 // settings for this digilib instance are merged from defaults and options | |
| 226 var settings = $.extend({}, defaults, options); | |
| 227 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
| 228 var queryParams = {}; | |
| 229 if (isFullscreen) { | |
| 230 queryParams = parseQueryParams(); | |
| 231 // check scalerBaseUrl | |
| 232 if (settings.scalerBaseUrl == null) { | |
| 233 // try the host this came from | |
| 234 var h = window.location.host; | |
| 235 if (window.location.host) { | |
| 236 var url = window.location.href; | |
| 237 // assume the page lives in [webapp]/jquery/ | |
| 238 var pos = url.indexOf('jquery/'); | |
| 239 if (pos > 0) { | |
| 240 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
| 645 | 241 } |
| 242 } | |
| 629 | 243 } |
| 661 | 244 } |
| 245 return this.each(function() { | |
| 246 var $elem = $(this); | |
| 247 var data = $elem.data('digilib'); | |
| 248 var elemSettings; | |
| 249 // if the plugin hasn't been initialized yet | |
| 250 if (!data) { | |
| 251 // merge query parameters | |
| 252 if (isFullscreen) { | |
| 253 elemSettings = $.extend({}, settings, queryParams); | |
| 254 } else { | |
| 255 elemSettings = $.extend({}, settings, parseImgParams($elem)); | |
| 597 | 256 } |
| 661 | 257 // store $(this) element in the settings |
| 258 data = { | |
| 259 $elem : $elem, | |
| 260 settings : elemSettings, | |
| 261 queryParams : queryParams | |
| 262 }; | |
| 263 // store in data element | |
| 264 $elem.data('digilib', data); | |
| 265 } | |
| 266 unpackParams(data); | |
| 267 // create HTML structure | |
| 268 setupScalerDiv(data); | |
| 269 setupButtons(data, 'standardSet'); | |
| 270 // bird's eye view creation | |
| 271 if (elemSettings.isBirdDivVisible) { | |
| 631 | 272 setupBirdDiv(data); |
| 273 } | |
| 661 | 274 // about window creation - TODO: could be deferred? restrict to only one item? |
| 275 setupAboutDiv(data); | |
| 276 }); | |
| 277 }, | |
| 278 | |
| 279 // destroy: clean up digilib | |
| 280 destroy : function(data) { | |
| 281 return this.each(function(){ | |
| 282 var $elem = $(this); | |
| 283 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
| 284 data.digilib.remove(); | |
| 285 $elem.removeData('digilib'); | |
| 286 }); | |
| 287 }, | |
| 288 | |
| 289 // show or hide the 'about' window | |
| 290 showAboutDiv : function(data, show) { | |
| 291 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
| 292 }, | |
| 648 | 293 |
| 661 | 294 // event handler: toggles the visibility of the bird's eye window |
| 295 showBirdDiv : function (data, show) { | |
| 296 if (data.$birdDiv == null) { | |
| 297 // no bird div -> create | |
| 298 setupBirdDiv(data); | |
| 299 } | |
| 300 // TODO: keep bird view visible after reload (parameter, cookie?) | |
| 301 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
| 302 }, | |
| 303 | |
| 304 // goto given page nr (+/-: relative) | |
| 305 gotoPage : function (data, pageNr) { | |
| 306 var settings = data.settings; | |
| 307 var oldpn = settings.pn; | |
| 308 var pn = setNumValue(settings, "pn", pageNr); | |
| 309 if (pn == null) return false; // nothing happened | |
| 310 if (pn < 1) { | |
| 311 alert("no such page (page number too low)"); | |
| 312 settings.pn = oldpn; | |
| 313 return false; | |
| 314 } | |
| 315 if (settings.pt) { | |
| 316 if (pn > settings.pt) { | |
| 317 alert("no such page (page number too high)"); | |
| 616 | 318 settings.pn = oldpn; |
| 319 return false; | |
| 627 | 320 } |
| 661 | 321 } |
| 322 // reset mk and others(?) | |
| 323 data.marks = []; | |
| 324 data.zoomArea = MAX_ZOOMAREA; | |
| 325 // then reload | |
| 326 redisplay(data); | |
| 327 }, | |
| 647 | 328 |
| 661 | 329 // zoom by a given factor |
| 330 zoomBy : function (data, factor) { | |
| 331 zoomBy(data, factor); | |
| 332 }, | |
| 640 | 333 |
| 661 | 334 // zoom interactively |
| 335 zoomArea : function (data) { | |
| 336 zoomArea(data); | |
| 337 }, | |
| 643 | 338 |
| 661 | 339 // zoom out to full page |
| 340 zoomFull : function (data, mode) { | |
| 341 data.zoomArea = MAX_ZOOMAREA; | |
| 342 if (mode === 'width') { | |
| 343 data.dlOpts.fitwidth = 1; | |
| 344 delete data.dlOpts.fitheight; | |
| 345 } else if (mode === 'height') { | |
| 346 data.dlOpts.fitheight = 1; | |
| 347 delete data.dlOpts.fitwidth; | |
| 348 } else { | |
| 349 delete data.dlOpts.fitwidth; | |
| 350 delete data.dlOpts.fitheight; | |
| 351 } | |
| 352 redisplay(data); | |
| 353 }, | |
| 354 | |
| 355 // set a mark by clicking (or giving a position) | |
| 356 setMark : function (data, mpos) { | |
| 357 if (mpos == null) { | |
| 358 // interactive | |
| 359 setMark(data); | |
| 360 } else { | |
| 361 // use position | |
| 362 data.marks.push(pos); | |
| 656 | 363 redisplay(data); |
| 597 | 364 } |
| 661 | 365 }, |
| 366 | |
| 367 // remove the last mark | |
| 368 removeMark : function (data) { | |
| 369 data.marks.pop(); | |
| 370 redisplay(data); | |
| 371 }, | |
| 372 | |
| 373 // mirror the image | |
| 374 mirror : function (data, mode) { | |
| 375 var flags = data.scalerFlags; | |
| 376 if (mode === 'h') { | |
| 377 if (flags.hmir) { | |
| 378 delete flags.hmir; | |
| 379 } else { | |
| 380 flags.hmir = 1; | |
| 381 } | |
| 382 } else { | |
| 383 if (flags.vmir) { | |
| 384 delete flags.vmir; | |
| 385 } else { | |
| 386 flags.vmir = 1; | |
| 387 } | |
| 388 } | |
| 389 redisplay(data); | |
| 390 }, | |
| 643 | 391 |
| 661 | 392 // rotate the image |
| 393 rotate : function (data, angle) { | |
| 394 var rot = data.settings.rot; | |
| 395 if (angle == null) { | |
| 396 angle = window.prompt("Rotation angle:", rot); | |
| 397 } | |
| 398 data.settings.rot = angle; | |
| 399 redisplay(data); | |
| 400 }, | |
| 401 | |
| 402 // change brightness | |
| 403 brightness : function (data, factor) { | |
| 404 var brgt = data.settings.brgt; | |
| 405 if (factor == null) { | |
| 406 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 407 } | |
| 408 data.settings.brgt = factor; | |
| 409 redisplay(data); | |
| 410 }, | |
| 411 | |
| 412 // change contrast | |
| 413 contrast : function (data, factor) { | |
| 414 var cont = data.settings.cont; | |
| 415 if (factor == null) { | |
| 416 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 417 } | |
| 418 data.settings.cont = factor; | |
| 419 redisplay(data); | |
| 420 } | |
| 598 | 421 }; |
| 597 | 422 |
| 601 | 423 // returns parameters from page url |
| 600 | 424 var parseQueryParams = function() { |
| 629 | 425 return parseQueryString(window.location.search.slice(1)); |
| 426 }; | |
| 648 | 427 |
| 629 | 428 // returns parameters from embedded img-element |
| 600 | 429 var parseImgParams = function($elem) { |
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430 var src = $elem.find('img').first().attr('src'); |
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431 if (!src) { |
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432 return null; |
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433 } |
| 600 | 434 var pos = src.indexOf('?'); |
| 435 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 436 var scalerUrl = src.substring(0, pos); | |
| 620 | 437 var params = parseQueryString(query); |
| 438 params.scalerBaseUrl = scalerUrl; | |
| 439 return params; | |
| 629 | 440 }; |
| 600 | 441 |
| 601 | 442 // parses query parameter string into parameter object |
| 600 | 443 var parseQueryString = function(query) { |
| 444 var pairs = query.split("&"); | |
| 620 | 445 var params = {}; |
| 629 | 446 //var keys = []; |
| 600 | 447 for (var i = 0; i < pairs.length; i++) { |
| 448 var pair = pairs[i].split("="); | |
| 449 if (pair.length === 2) { | |
| 620 | 450 params[pair[0]] = pair[1]; |
| 629 | 451 //keys.push(pair[0]); |
| 627 | 452 } |
| 629 | 453 } |
| 620 | 454 return params; |
| 629 | 455 }; |
| 661 | 456 |
| 636 | 457 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 458 var getParamString = function (settings, keys, defaults) { | |
| 608 | 459 var paramString = ''; |
| 643 | 460 var nx = false; |
| 608 | 461 for (i = 0; i < keys.length; ++i) { |
| 462 var key = keys[i]; | |
| 656 | 463 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 608 | 464 // first param gets no '&' |
| 643 | 465 if (nx) { |
| 466 paramString += '&'; | |
| 467 } else { | |
| 468 nx = true; | |
| 469 } | |
| 608 | 470 // add parm=val |
| 471 paramString += key + '=' + settings[key]; | |
| 636 | 472 } |
| 608 | 473 } |
| 474 return paramString; | |
| 624 | 475 }; |
| 476 | |
| 629 | 477 // returns URL and query string for Scaler |
| 478 var getScalerUrl = function (data) { | |
| 646 | 479 var settings = data.settings; |
| 645 | 480 if (settings.scalerBaseUrl == null) { |
| 481 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
| 482 } | |
| 658 | 483 packParams(data); |
| 629 | 484 var keys = settings.scalerParamNames; |
| 636 | 485 var queryString = getParamString(settings, keys, defaults); |
| 629 | 486 var url = settings.scalerBaseUrl + '?' + queryString; |
| 487 return url; | |
| 488 }; | |
| 489 | |
| 490 // returns URL and query string for current digilib | |
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491 var getDigilibUrl = function (data) { |
| 636 | 492 packParams(data); |
| 629 | 493 var settings = data.settings; |
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494 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 629 | 495 var url = window.location.toString(); |
| 496 var pos = url.indexOf('?'); | |
| 497 var baseUrl = url.substring(0, pos); | |
| 498 var newurl = baseUrl + '?' + queryString; | |
| 499 return newurl; | |
| 500 }; | |
| 501 | |
| 648 | 502 // processes some parameters into objects and stuff |
| 624 | 503 var unpackParams = function (data) { |
| 504 var settings = data.settings; | |
| 629 | 505 // zoom area |
| 624 | 506 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 636 | 507 data.zoomArea = zoomArea; |
| 629 | 508 // marks |
| 624 | 509 var marks = []; |
| 643 | 510 if (settings.mk) { |
| 511 var mk = settings.mk; | |
| 512 if (mk.indexOf(";") >= 0) { | |
| 513 var pa = mk.split(";"); // old format with ";" | |
| 514 } else { | |
| 515 var pa = mk.split(","); // new format | |
| 516 } | |
| 517 for (var i = 0; i < pa.length ; i++) { | |
| 518 var pos = pa[i].split("/"); | |
| 519 if (pos.length > 1) { | |
| 520 marks.push(geom.position(pos[0], pos[1])); | |
| 521 } | |
| 626 | 522 } |
| 624 | 523 } |
| 636 | 524 data.marks = marks; |
| 643 | 525 // mo (Scaler flags) |
| 526 var flags = {}; | |
| 527 if (settings.mo) { | |
| 528 var pa = settings.mo.split(","); | |
| 529 for (var i = 0; i < pa.length ; i++) { | |
| 530 flags[pa[i]] = pa[i]; | |
| 531 } | |
| 532 } | |
| 533 data.scalerFlags = flags; | |
| 534 // clop (digilib options) | |
| 535 var opts = {}; | |
| 536 if (settings.clop) { | |
| 537 var pa = settings.clop.split(","); | |
| 538 for (var i = 0; i < pa.length ; i++) { | |
| 539 opts[pa[i]] = pa[i]; | |
| 540 } | |
| 541 } | |
| 542 data.dlOpts = opts; | |
| 654 | 543 // birdview option |
| 544 if (opts.birdview) { | |
| 545 settings.isBirdDivVisible = 1; | |
| 546 } | |
| 648 | 547 }; |
| 548 | |
| 624 | 549 // put objects back into parameters |
| 550 var packParams = function (data) { | |
| 551 var settings = data.settings; | |
| 629 | 552 // zoom area |
| 636 | 553 if (data.zoomArea) { |
| 640 | 554 settings.wx = cropFloat(data.zoomArea.x); |
| 555 settings.wy = cropFloat(data.zoomArea.y); | |
| 556 settings.ww = cropFloat(data.zoomArea.width); | |
| 557 settings.wh = cropFloat(data.zoomArea.height); | |
| 624 | 558 } |
| 629 | 559 // marks |
| 636 | 560 if (data.marks) { |
| 643 | 561 settings.mk = ''; |
| 636 | 562 for (var i = 0; i < data.marks.length; i++) { |
| 643 | 563 if (i) { |
| 564 settings.mk += ','; | |
| 565 } | |
| 566 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
| 624 | 567 } |
| 643 | 568 } |
| 569 // Scaler flags | |
| 570 if (data.scalerFlags) { | |
| 571 var mo = ''; | |
| 572 for (var f in data.scalerFlags) { | |
| 573 if (mo) { | |
| 574 mo += ','; | |
| 575 } | |
| 576 mo += f; | |
| 577 } | |
| 578 settings.mo = mo; | |
| 579 } | |
| 654 | 580 // digilib option birdview |
| 581 if (settings.isBirdDivVisible) { | |
| 582 data.dlOpts.birdview = 1; | |
| 655 | 583 } else { |
| 584 delete data.dlOpts.birdview; | |
| 654 | 585 } |
| 643 | 586 // digilib options |
| 587 if (data.dlOpts) { | |
| 588 var clop = ''; | |
| 589 for (var o in data.dlOpts) { | |
| 590 if (clop) { | |
| 591 clop += ','; | |
| 592 } | |
| 593 clop += o; | |
| 594 } | |
| 595 settings.clop = clop; | |
| 624 | 596 } |
| 597 }; | |
| 648 | 598 |
| 615 | 599 // (re)load the img from a new scaler URL |
|
637
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600 var redisplay = function (data) { |
| 629 | 601 var settings = data.settings; |
| 602 if (settings.interactionMode === 'fullscreen') { | |
| 603 // update location.href (browser URL) in fullscreen mode | |
|
637
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604 var url = getDigilibUrl(data); |
| 629 | 605 var history = window.history; |
| 606 if (typeof(history.pushState) === 'function') { | |
| 607 console.debug("we could modify history, but we don't..."); | |
| 608 } | |
| 609 window.location = url; | |
| 610 } else { | |
| 611 // embedded mode -- just change img src | |
| 612 var url = getScalerUrl(data); | |
| 613 data.$img.attr('src', url); | |
| 661 | 614 // TODO: doesn't work yet |
| 615 var $birdImg = data.$birdImg; | |
| 616 if ($birdImg) { | |
| 617 $birdImg.triggerHandler('load'); | |
| 618 }; | |
| 629 | 619 } |
| 615 | 620 }; |
| 621 | |
| 655 | 622 // returns maximum size for scaler img in fullscreen mode |
| 623 var getFullscreenImgSize = function($elem) { | |
| 624 var $win = $(window); | |
| 625 var winH = $win.height(); | |
| 626 var winW = $win.width(); | |
| 627 // TODO: account for borders? | |
| 628 return geom.size(winW, winH); | |
| 629 }; | |
| 630 | |
| 601 | 631 // creates HTML structure for digilib in elem |
| 620 | 632 var setupScalerDiv = function (data) { |
| 633 var settings = data.settings; | |
| 640 | 634 var $elem = data.$elem; |
| 616 | 635 var $img; |
| 601 | 636 if (settings.interactionMode === 'fullscreen') { |
| 602 | 637 // fullscreen |
| 638 var imgSize = getFullscreenImgSize($elem); | |
| 643 | 639 // fitwidth/height omits destination height/width |
| 640 if (data.dlOpts['fitheight'] == null) { | |
| 641 settings.dw = imgSize.width; | |
| 642 } | |
| 643 if (data.dlOpts['fitwidth'] == null) { | |
| 644 settings.dh = imgSize.height; | |
| 645 } | |
|
606
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646 $img = $('<img/>'); |
| 629 | 647 var scalerUrl = getScalerUrl(data); |
| 648 $img.attr('src', scalerUrl); | |
| 602 | 649 } else { |
|
606
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650 // embedded mode -- try to keep img tag |
| 616 | 651 $img = $elem.find('img'); |
|
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652 if ($img.length > 0) { |
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653 console.debug("img detach:",$img); |
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654 $img.detach(); |
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655 } else { |
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656 $img = $('<img/>'); |
| 629 | 657 var scalerUrl = getScalerUrl(data); |
| 658 $img.attr('src', scalerUrl); | |
|
606
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659 } |
| 601 | 660 } |
|
606
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661 // create new html |
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662 $elem.empty(); // TODO: should we keep stuff for customization? |
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663 var $scaler = $('<div class="scaler"/>'); |
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664 $elem.append($scaler); |
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665 $scaler.append($img); |
| 615 | 666 $img.addClass('pic'); |
| 642 | 667 data.$scaler = $scaler; |
| 629 | 668 data.$img = $img; |
| 669 $img.load(scalerImgLoadedHandler(data)); | |
| 601 | 670 }; |
| 608 | 671 |
| 603 | 672 // creates HTML structure for buttons in elem |
|
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673 var setupButtons = function (data, actionGroup) { |
| 640 | 674 var $elem = data.$elem; |
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675 var settings = data.settings; |
| 658 | 676 // if (settings.interactionMode === 'fullscreen') { |
| 677 var $buttonsDiv = $('<div class="buttons"></div>'); | |
| 678 $elem.append($buttonsDiv); | |
| 679 var mode = settings.interactionMode; | |
| 680 var buttonSettings = settings.buttonSettings[mode] | |
| 681 var actionNames = buttonSettings[actionGroup]; | |
| 682 for (var i = 0; i < actionNames.length; i++) { | |
| 683 var actionName = actionNames[i]; | |
| 684 var buttonConfig = settings.buttons[actionName]; | |
| 685 // construct the button html | |
| 686 var $button = $('<div class="button"></div>'); | |
| 687 var $a = $('<a/>'); | |
| 688 var $img = $('<img class="button"/>'); | |
| 689 $buttonsDiv.append($button); | |
| 690 $button.append($a); | |
| 691 $a.append($img); | |
| 692 // add attributes and bindings | |
| 693 $button.attr('title', buttonConfig.tooltip); | |
| 694 $button.addClass('button-' + actionName); | |
| 695 // create handler for the buttons | |
| 696 $a.bind('click.digilib', (function () { | |
| 697 // we create a new closure to capture the value of action | |
| 698 var action = buttonConfig.onclick; | |
| 699 if ($.isArray(action)) { | |
| 700 // the handler function calls digilib with action and parameters | |
| 701 return function (evt) { | |
| 702 console.debug('click action=', action, ' evt=', evt); | |
| 703 $elem.digilib.apply($elem, action); | |
| 704 return false; | |
| 705 }; | |
| 706 } else { | |
| 707 // the handler function calls digilib with action | |
| 708 return function (evt) { | |
| 709 console.debug('click action=', action, ' evt=', evt); | |
| 710 $elem.digilib(action); | |
| 711 return false; | |
| 712 }; | |
| 713 } | |
| 714 })()); | |
| 715 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
| 630 | 716 } |
| 655 | 717 // make buttons div scroll if too large for window |
| 718 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 719 $buttonsDiv.css('position', 'absolute'); | |
| 720 } | |
| 605 | 721 return $buttonsDiv; |
| 603 | 722 }; |
| 608 | 723 |
| 724 // creates HTML structure for the bird's eye view in elem | |
| 631 | 725 var setupBirdDiv = function (data) { |
| 640 | 726 var $elem = data.$elem; |
|
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727 var settings = data.settings; |
| 608 | 728 // use only the relevant parameters |
| 729 var keys = ['fn','pn','dw','dh']; | |
| 632 | 730 var birdSettings = $.extend({}, settings, settings.birdDivOptions); |
|
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731 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
| 608 | 732 // the bird's eye div |
|
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733 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 608 | 734 // the detail indicator frame |
| 648 | 735 var $birdzoomDiv = $('<div class="birdzoom" style="position: absolute; background-color: transparent;"/>'); |
| 608 | 736 // the small image |
| 737 var $birdImg = $('<img class="birdimg"/>'); | |
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738 $elem.append($birdDiv); |
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739 $birdDiv.append($birdzoomDiv); |
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740 $birdDiv.append($birdImg); |
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741 data.$birdDiv = $birdDiv; |
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742 data.$birdImg = $birdImg; |
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743 $birdImg.load(birdImgLoadedHandler(data)); |
| 608 | 744 $birdImg.attr('src', birdUrl); |
|
633
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745 if (data.settings.isBirdDivVisible) { |
|
651
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746 $birdDiv.fadeIn(); |
|
633
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747 } |
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748 }; |
| 608 | 749 |
| 618 | 750 // creates HTML structure for the about view in elem |
|
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751 var setupAboutDiv = function (data) { |
| 640 | 752 var $elem = data.$elem; |
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753 var settings = data.settings; |
| 618 | 754 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 609 | 755 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 756 var $link = $('<a/>'); | |
| 757 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 758 var $content = $('<p/>'); | |
| 759 $elem.append($aboutDiv); | |
| 760 $aboutDiv.append($header); | |
| 761 $aboutDiv.append($link); | |
| 762 $aboutDiv.append($content); | |
| 763 $link.append($logo); | |
| 764 $logo.attr('src', settings.logoUrl); | |
| 628 | 765 $link.attr('href', settings.homeUrl); |
| 609 | 766 $content.text('Version: ' + settings.version); |
| 628 | 767 // click hides |
| 642 | 768 $aboutDiv.bind('click.digilib', function () { |
| 639 | 769 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 642 | 770 return false; |
| 771 }); | |
| 628 | 772 data.$aboutDiv = $aboutDiv; |
| 627 | 773 }; |
| 774 | |
| 628 | 775 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 776 var showDiv = function (isVisible, $div, show) { | |
| 638 | 777 if (show == null) { |
| 628 | 778 // toggle visibility |
| 779 isVisible = !isVisible; | |
| 780 } else { | |
| 781 // set visibility | |
| 782 isVisible = show; | |
| 783 } | |
| 784 if (isVisible) { | |
| 785 $div.fadeIn(); | |
| 786 } else { | |
| 787 $div.fadeOut(); | |
| 788 } | |
| 789 return isVisible; | |
| 627 | 790 }; |
| 609 | 791 |
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792 // create Transform from area and $img |
|
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793 var getImgTrafo = function ($img, area, data) { |
|
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794 var picrect = geom.rectangle($img); |
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795 var trafo = geom.transform(); |
|
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796 // zoom area offset |
|
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797 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
|
657
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798 // zoom area size |
|
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799 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
|
657
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800 // rotate |
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801 if (data) { |
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802 var rot = trafo.getRotationAround(-parseFloat(data.settings.rot), |
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803 geom.position(0.5 * area.width + area.x, 0.5 * area.height + area.y)); |
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804 trafo.concat(rot); |
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805 } |
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806 // scale to screen position and size |
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807 trafo.concat(trafo.getScale(picrect)); |
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808 trafo.concat(trafo.getTranslation(picrect)); |
|
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809 /* if (data && data.settings.rot) { |
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810 var rot = trafo.getRotationAround(-data.settings.rot, |
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811 geom.position(0.5 * picrect.width + picrect.x, 0.5 * picrect.height + picrect.y)); |
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812 //var trans1 = trafo.getTranslation(geom.position(-0.5*picrect.width, -0.5*picrect.height)); |
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813 //var rot = trafo.getRotation(data.settings.rot); |
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814 //var trans2 = trafo.getTranslation(geom.position(0.5*picrect.width, 0.5*pirect.height)); |
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815 //trafo.concat(trans1); |
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816 trafo.concat(rot); |
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817 //trafo.concat(trans2); |
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818 } */ |
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819 return trafo; |
| 648 | 820 }; |
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821 |
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822 // returns function for load event of scaler img |
| 629 | 823 var scalerImgLoadedHandler = function (data) { |
| 824 var $img = data.$img; | |
| 626 | 825 return function () { |
| 620 | 826 console.debug("img loaded! this=", this, " data=", data); |
| 827 // create Transform from current area and picsize | |
|
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828 data.imgTrafo = getImgTrafo($img, data.zoomArea, data); |
| 620 | 829 // display marks |
| 626 | 830 renderMarks(data); |
| 620 | 831 //digilib.showArrows(); // show arrow overlays for zoom navigation |
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832 }; |
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833 }; |
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834 |
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835 // returns function for load event of bird's eye view img |
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836 var birdImgLoadedHandler = function (data) { |
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837 var $img = data.$birdImg; |
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838 return function () { |
| 661 | 839 if (!$img) return; |
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840 console.debug("birdimg loaded! this=", this, " data=", data); |
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841 // create Transform from current area and picsize |
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842 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
| 661 | 843 // display red indicator around zoomarea |
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844 renderBirdArea(data); |
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845 }; |
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846 }; |
| 626 | 847 |
| 848 // place marks on the image | |
| 849 var renderMarks = function (data) { | |
| 640 | 850 var $elem = data.$elem; |
| 636 | 851 var marks = data.marks; |
| 642 | 852 // TODO: clear marks first(?) |
| 626 | 853 for (var i = 0; i < marks.length; i++) { |
| 854 var mark = marks[i]; | |
| 636 | 855 if (data.zoomArea.containsPosition(mark)) { |
| 626 | 856 var mpos = data.imgTrafo.transform(mark); |
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857 console.debug("renderMarks: mpos=",mpos); |
| 626 | 858 // create mark |
| 859 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 860 var $mark = $(html); | |
| 861 $elem.append($mark); | |
| 647 | 862 $mark.offset({left : mpos.x, top : mpos.y}); |
| 626 | 863 } |
| 864 } | |
| 865 }; | |
| 648 | 866 |
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867 var renderBirdArea = function (data) { |
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868 var $ind = data.$birdDiv.find('div.birdzoom'); |
| 652 | 869 var zoomArea = data.zoomArea; |
| 870 var indRect = data.birdTrafo.transform(zoomArea); | |
| 653 | 871 if (isFullArea(zoomArea)) return $ind.hide(); |
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872 // TODO: set the coordinates all in one call? |
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873 $ind.width(indRect.width); |
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874 $ind.height(indRect.height); |
| 652 | 875 // offset minus frame width |
| 876 $ind.offset({ left : indRect.x-2, top : indRect.y-2 }); | |
| 877 $ind.css(data.settings.birdIndicatorStyle); | |
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878 }; |
| 652 | 879 |
| 640 | 880 // zooms by the given factor |
| 636 | 881 var zoomBy = function(data, factor) { |
| 882 var area = data.zoomArea; | |
| 883 var newarea = area.copy(); | |
| 884 // scale | |
| 885 newarea.width /= factor; | |
| 886 newarea.height /= factor; | |
| 887 // and recenter | |
| 888 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 889 newarea.y -= 0.5 * (newarea.height - area.height); | |
| 890 newarea = MAX_ZOOMAREA.fit(newarea); | |
| 891 data.zoomArea = newarea; | |
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892 redisplay(data); |
| 636 | 893 }; |
| 894 | |
| 640 | 895 // add a mark where clicked |
| 896 var setMark = function (data) { | |
| 642 | 897 var $scaler = data.$scaler; |
| 640 | 898 console.debug("setmark"); |
| 899 // start event capturing | |
| 642 | 900 $scaler.one('click.digilib', function (evt) { |
| 640 | 901 // event handler adding a new mark |
| 902 console.debug("setmark.click evt=",evt); | |
| 903 var mpos = geom.position(evt.pageX, evt.pageY); | |
| 904 var pos = data.imgTrafo.invtransform(mpos); | |
| 905 data.marks.push(pos); | |
| 906 redisplay(data); | |
| 642 | 907 return false; // do we even get here? |
| 640 | 908 }); |
| 909 }; | |
| 661 | 910 |
| 647 | 911 var zoomArea = function(data) { |
| 912 $elem = data.$elem; | |
| 913 $scaler = data.$scaler; | |
| 914 var pt1, pt2; | |
| 915 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 916 $elem.append($zoomDiv); | |
| 661 | 917 $zoomDiv.css(data.settings.zoomrectStyle); |
| 647 | 918 //var overlay = getElement("overlay"); |
| 919 // use overlay div to avoid <img> mousemove problems | |
| 920 var picRect = geom.rectangle($scaler); | |
| 921 // FIX ME: is there a way to query the border width from CSS info? | |
| 922 // rect.x -= 2; // account for overlay borders | |
| 923 // rect.y -= 2; | |
| 924 //moveElement(overlay, picRect); | |
| 925 //showElement(overlay, true); | |
| 926 // start event capturing | |
| 927 //registerEvent("mousedown", overlay, zoomStart); | |
| 928 //registerEvent("mousedown", this.scalerImg, zoomStart); | |
| 929 | |
| 930 var zoomStart = function (evt) { | |
| 931 pt1 = geom.position(evt); | |
| 932 // setup and show zoom div | |
| 933 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
| 934 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
| 661 | 935 $zoomDiv.width(0).height(0); |
| 647 | 936 $zoomDiv.show(); |
| 937 // register events | |
| 938 $elem.bind("mousemove.digilib", zoomMove); | |
| 939 $elem.bind("mouseup.digilib", zoomEnd); | |
| 940 return false; | |
| 941 }; | |
| 661 | 942 |
| 647 | 943 // mouseup handler: end moving |
| 944 var zoomEnd = function (evt) { | |
| 945 pt2 = geom.position(evt); | |
| 946 // assume a click and continue if the area is too small | |
| 947 var clickRect = geom.rectangle(pt1, pt2); | |
| 948 clickRect.normalize(); | |
| 949 console.debug("clickRect.getArea()=",clickRect.getArea()); | |
| 950 if (clickRect.getArea() <= 5) { | |
| 951 return false; | |
| 952 } | |
| 953 // hide zoom div | |
| 954 $zoomDiv.remove(); | |
| 955 // unregister events | |
| 956 $elem.unbind("mousemove.digilib", zoomMove); | |
| 957 $elem.unbind("mouseup.digilib", zoomEnd); | |
| 958 // clip and transform | |
| 959 clickRect.clipTo(picRect); | |
| 960 var area = data.imgTrafo.invtransform(clickRect); | |
| 961 data.zoomArea = area; | |
| 962 // zoomed is always fit | |
| 963 data.settings.ws = 1; | |
| 964 redisplay(data); | |
| 965 return false; | |
| 966 }; | |
| 661 | 967 |
| 647 | 968 // mouse move handler |
| 969 var zoomMove = function (evt) { | |
| 970 pt2 = geom.position(evt); | |
| 971 var rect = geom.rectangle(pt1, pt2); | |
| 972 rect.normalize(); | |
| 973 rect.clipTo(picRect); | |
| 974 // update zoom div | |
| 975 $zoomDiv.offset({left : rect.x, top : rect.y}); | |
| 976 $zoomDiv.width(rect.width).height(rect.height); | |
| 977 return false; | |
| 978 }; | |
| 661 | 979 |
| 647 | 980 // bind start zoom handler |
| 981 $scaler.one('mousedown.digilib', zoomStart); | |
| 982 }; | |
| 640 | 983 |
| 643 | 984 // sets a key to a value (relative values with +/- if relative=true) |
| 985 var setNumValue = function(settings, key, value) { | |
| 986 if (isNumber(value)) return settings[key] = value; | |
| 987 var sign = value.substring(0,1); | |
| 988 if (sign === '+' || sign === '-') { | |
| 989 if (settings[key] == null) { | |
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990 // this isn't perfect but still... |
| 643 | 991 settings[key] = 0; |
| 992 } | |
| 993 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
| 994 } else { | |
| 995 settings[key] = value; | |
| 996 } | |
| 997 return settings[key]; | |
| 998 }; | |
| 648 | 999 |
| 1000 // auxiliary function (from old dllib.js) | |
| 652 | 1001 isFullArea = function(area) { |
| 1002 return (area.width === 1.0) && (area.height === 1.0); | |
| 648 | 1003 }; |
| 1004 | |
| 634 | 1005 // auxiliary function (from Douglas Crockford, A.10) |
| 1006 var isNumber = function isNumber(value) { | |
| 1007 return typeof value === 'number' && isFinite(value); | |
| 1008 }; | |
| 648 | 1009 |
| 624 | 1010 // auxiliary function to crop senseless precision |
| 1011 var cropFloat = function (x) { | |
| 630 | 1012 return parseInt(10000 * x, 10) / 10000; |
| 624 | 1013 }; |
| 648 | 1014 |
| 598 | 1015 // hook plugin into jquery |
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1016 $.fn.digilib = function(action) { |
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1017 if (actions[action]) { |
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1018 // call action on this with the remaining arguments (inserting data as first argument) |
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1019 var $elem = $(this); |
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1020 var data = $elem.data('digilib'); |
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1021 var args = Array.prototype.slice.call(arguments, 1); |
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1022 args.unshift(data); |
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1023 return actions[action].apply(this, args); |
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1024 } else if (typeof(action) === 'object' || !action) { |
| 627 | 1025 // call init on this |
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1026 return actions.init.apply(this, arguments); |
| 598 | 1027 } else { |
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1028 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
| 598 | 1029 } |
| 1030 }; | |
| 597 | 1031 |
| 1032 })(jQuery); |