Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 657:b0c6cc4a0932 jquery
work on getting transformation to work with rotation (currently still doesn't)
| author | robcast |
|---|---|
| date | Mon, 24 Jan 2011 00:13:16 +0100 |
| parents | cad479ecb089 |
| children | 934da7e40031 |
| 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, |
| 605 | 186 // path to button images (must end with a slash) |
| 187 'buttonsImagePath' : '../greyskin/', | |
| 645 | 188 // button groups |
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189 //'buttonsStandard' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","options"], |
| 655 | 190 'buttonsStandard' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","mark","delmark","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","calibrationx","scale","bird","help","options"], |
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191 'buttonsSpecial' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","options"], |
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192 'buttonsCustom' : [], |
| 609 | 193 // is birdView shown? |
| 194 'isBirdDivVisible' : false, | |
| 608 | 195 // dimensions of bird's eye window |
| 632 | 196 'birdDivOptions' : {'dw' : 200, 'dh' : 200}, |
| 652 | 197 // style of bird's eye window |
| 198 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, | |
| 609 | 199 // is the "about" window shown? |
| 200 'isAboutDivVisible' : false | |
| 201 | |
| 603 | 202 }; |
| 648 | 203 |
| 601 | 204 // affine geometry classes |
| 205 var geom = dlGeometry(); | |
| 648 | 206 |
| 636 | 207 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
| 648 | 208 |
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209 var actions = { |
| 647 | 210 // init: digilib initialization |
| 597 | 211 init : function(options) { |
| 601 | 212 // settings for this digilib instance are merged from defaults and options |
| 600 | 213 var settings = $.extend({}, defaults, options); |
| 629 | 214 var isFullscreen = settings.interactionMode === 'fullscreen'; |
| 215 var queryParams = {}; | |
| 600 | 216 if (isFullscreen) { |
| 217 queryParams = parseQueryParams(); | |
| 645 | 218 // check scalerBaseUrl |
| 219 if (settings.scalerBaseUrl == null) { | |
| 220 // try the host this came from | |
| 221 var h = window.location.host; | |
| 222 if (window.location.host) { | |
| 223 var url = window.location.href; | |
| 224 // assume the page lives in [webapp]/jquery/ | |
| 225 var pos = url.indexOf('jquery/'); | |
| 226 if (pos > 0) { | |
| 227 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
| 228 } | |
| 229 } | |
| 230 } | |
| 629 | 231 } |
| 597 | 232 return this.each(function() { |
| 598 | 233 var $elem = $(this); |
| 234 var data = $elem.data('digilib'); | |
| 600 | 235 var elemSettings; |
| 601 | 236 // if the plugin hasn't been initialized yet |
| 597 | 237 if (!data) { |
| 598 | 238 // merge query parameters |
| 600 | 239 if (isFullscreen) { |
| 240 elemSettings = $.extend({}, settings, queryParams); | |
| 241 } else { | |
| 242 elemSettings = $.extend({}, settings, parseImgParams($elem)); | |
| 627 | 243 } |
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244 // store $(this) element in the settings |
| 620 | 245 data = { |
| 640 | 246 $elem : $elem, |
| 629 | 247 settings : elemSettings, |
| 248 queryParams : queryParams | |
| 620 | 249 }; |
| 598 | 250 // store in data element |
| 620 | 251 $elem.data('digilib', data); |
| 597 | 252 } |
| 626 | 253 unpackParams(data); |
| 601 | 254 // create HTML structure |
| 620 | 255 setupScalerDiv(data); |
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256 setupButtons(data, 'buttonsStandard'); |
| 632 | 257 // bird's eye view creation |
| 654 | 258 if (elemSettings.isBirdDivVisible) { |
| 634 | 259 setupBirdDiv(data); |
| 632 | 260 } |
| 620 | 261 // about window creation - TODO: could be deferred? restrict to only one item? |
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262 setupAboutDiv(data); |
| 597 | 263 }); |
| 264 }, | |
| 601 | 265 |
| 647 | 266 // destroy: clean up digilib |
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267 destroy : function(data) { |
| 597 | 268 return this.each(function(){ |
| 629 | 269 var $elem = $(this); |
| 647 | 270 $(window).unbind('.digilib'); // unbind all digilibs(?) |
| 597 | 271 data.digilib.remove(); |
| 629 | 272 $elem.removeData('digilib'); |
| 597 | 273 }); |
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274 }, |
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275 |
| 628 | 276 // show or hide the 'about' window |
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277 showAboutDiv : function(data, show) { |
| 628 | 278 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); |
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279 }, |
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280 |
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281 // event handler: toggles the visibility of the bird's eye window |
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282 showBirdDiv : function (data, show) { |
| 631 | 283 if (data.$birdDiv == null) { |
| 284 // no bird div -> create | |
| 285 setupBirdDiv(data); | |
| 286 } | |
| 648 | 287 // TODO: keep bird view visible after reload (parameter, cookie?) |
| 628 | 288 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); |
| 616 | 289 }, |
| 648 | 290 |
| 616 | 291 // goto given page nr (+/-: relative) |
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292 gotoPage : function (data, pageNr) { |
| 629 | 293 var settings = data.settings; |
| 616 | 294 var oldpn = settings.pn; |
| 617 | 295 var pn = setNumValue(settings, "pn", pageNr); |
| 296 if (pn == null) return false; // nothing happened | |
| 616 | 297 if (pn < 1) { |
| 298 alert("no such page (page number too low)"); | |
| 299 settings.pn = oldpn; | |
| 300 return false; | |
| 627 | 301 } |
| 616 | 302 if (settings.pt) { |
| 303 if (pn > settings.pt) { | |
| 304 alert("no such page (page number too high)"); | |
| 305 settings.pn = oldpn; | |
| 306 return false; | |
| 307 } | |
| 627 | 308 } |
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309 // reset mk and others(?) |
| 636 | 310 data.marks = []; |
| 311 data.zoomArea = MAX_ZOOMAREA; | |
| 629 | 312 // then reload |
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313 redisplay(data); |
| 636 | 314 }, |
| 648 | 315 |
| 636 | 316 // zoom by a given factor |
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317 zoomBy : function (data, factor) { |
| 636 | 318 zoomBy(data, factor); |
| 640 | 319 }, |
| 320 | |
| 647 | 321 // zoom interactively |
| 322 zoomArea : function (data) { | |
| 323 zoomArea(data); | |
| 324 }, | |
| 325 | |
| 640 | 326 // zoom out to full page |
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327 zoomFull : function (data, mode) { |
| 640 | 328 data.zoomArea = MAX_ZOOMAREA; |
| 643 | 329 if (mode === 'width') { |
| 330 data.dlOpts.fitwidth = 1; | |
| 331 delete data.dlOpts.fitheight; | |
| 332 } else if (mode === 'height') { | |
| 333 data.dlOpts.fitheight = 1; | |
| 334 delete data.dlOpts.fitwidth; | |
| 335 } else { | |
| 336 delete data.dlOpts.fitwidth; | |
| 337 delete data.dlOpts.fitheight; | |
| 338 } | |
| 640 | 339 redisplay(data); |
| 340 }, | |
| 341 | |
| 342 // set a mark by clicking (or giving a position) | |
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343 setMark : function (data, mpos) { |
| 640 | 344 if (mpos == null) { |
| 345 // interactive | |
| 346 setMark(data); | |
| 347 } else { | |
| 348 // use position | |
| 349 data.marks.push(pos); | |
| 350 redisplay(data); | |
| 351 } | |
| 643 | 352 }, |
| 353 | |
| 354 // remove the last mark | |
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355 removeMark : function (data) { |
| 643 | 356 data.marks.pop(); |
| 357 redisplay(data); | |
| 654 | 358 }, |
| 359 | |
| 360 // mirror the image | |
| 361 mirror : function (data, mode) { | |
| 362 var flags = data.scalerFlags; | |
| 363 if (mode === 'h') { | |
| 364 if (flags.hmir) { | |
| 365 delete flags.hmir; | |
| 366 } else { | |
| 367 flags.hmir = 1; | |
| 368 } | |
| 369 } else { | |
| 370 if (flags.vmir) { | |
| 371 delete flags.vmir; | |
| 372 } else { | |
| 373 flags.vmir = 1; | |
| 374 } | |
| 375 } | |
| 376 redisplay(data); | |
| 656 | 377 }, |
| 378 | |
| 379 // rotate the image | |
| 380 rotate : function (data, angle) { | |
| 381 var rot = data.settings.rot; | |
| 382 if (angle == null) { | |
| 383 angle = window.prompt("Rotation angle:", rot); | |
| 384 } | |
| 385 data.settings.rot = angle; | |
| 386 redisplay(data); | |
| 387 }, | |
| 388 | |
| 389 // change brightness | |
| 390 brightness : function (data, factor) { | |
| 391 var brgt = data.settings.brgt; | |
| 392 if (factor == null) { | |
| 393 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 394 } | |
| 395 data.settings.brgt = factor; | |
| 396 redisplay(data); | |
| 397 }, | |
| 398 | |
| 399 // change contrast | |
| 400 contrast : function (data, factor) { | |
| 401 var cont = data.settings.cont; | |
| 402 if (factor == null) { | |
| 403 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 404 } | |
| 405 data.settings.cont = factor; | |
| 406 redisplay(data); | |
| 597 | 407 } |
| 656 | 408 |
| 643 | 409 |
| 598 | 410 }; |
| 597 | 411 |
| 601 | 412 // returns parameters from page url |
| 600 | 413 var parseQueryParams = function() { |
| 629 | 414 return parseQueryString(window.location.search.slice(1)); |
| 415 }; | |
| 648 | 416 |
| 629 | 417 // returns parameters from embedded img-element |
| 600 | 418 var parseImgParams = function($elem) { |
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419 var src = $elem.find('img').first().attr('src'); |
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420 if (!src) { |
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421 return null; |
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422 } |
| 600 | 423 var pos = src.indexOf('?'); |
| 424 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 425 var scalerUrl = src.substring(0, pos); | |
| 620 | 426 var params = parseQueryString(query); |
| 427 params.scalerBaseUrl = scalerUrl; | |
| 428 return params; | |
| 629 | 429 }; |
| 600 | 430 |
| 601 | 431 // parses query parameter string into parameter object |
| 600 | 432 var parseQueryString = function(query) { |
| 433 var pairs = query.split("&"); | |
| 620 | 434 var params = {}; |
| 629 | 435 //var keys = []; |
| 600 | 436 for (var i = 0; i < pairs.length; i++) { |
| 437 var pair = pairs[i].split("="); | |
| 438 if (pair.length === 2) { | |
| 620 | 439 params[pair[0]] = pair[1]; |
| 629 | 440 //keys.push(pair[0]); |
| 627 | 441 } |
| 629 | 442 } |
| 620 | 443 return params; |
| 629 | 444 }; |
| 597 | 445 |
| 636 | 446 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 447 var getParamString = function (settings, keys, defaults) { | |
| 608 | 448 var paramString = ''; |
| 643 | 449 var nx = false; |
| 608 | 450 for (i = 0; i < keys.length; ++i) { |
| 451 var key = keys[i]; | |
| 656 | 452 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 608 | 453 // first param gets no '&' |
| 643 | 454 if (nx) { |
| 455 paramString += '&'; | |
| 456 } else { | |
| 457 nx = true; | |
| 458 } | |
| 608 | 459 // add parm=val |
| 460 paramString += key + '=' + settings[key]; | |
| 636 | 461 } |
| 608 | 462 } |
| 463 return paramString; | |
| 624 | 464 }; |
| 465 | |
| 629 | 466 // returns URL and query string for Scaler |
| 467 var getScalerUrl = function (data) { | |
| 646 | 468 var settings = data.settings; |
| 645 | 469 if (settings.scalerBaseUrl == null) { |
| 470 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
| 471 } | |
| 629 | 472 var keys = settings.scalerParamNames; |
| 636 | 473 var queryString = getParamString(settings, keys, defaults); |
| 629 | 474 var url = settings.scalerBaseUrl + '?' + queryString; |
| 475 return url; | |
| 476 }; | |
| 477 | |
| 478 // returns URL and query string for current digilib | |
|
637
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479 var getDigilibUrl = function (data) { |
| 636 | 480 packParams(data); |
| 629 | 481 var settings = data.settings; |
|
637
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482 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 629 | 483 var url = window.location.toString(); |
| 484 var pos = url.indexOf('?'); | |
| 485 var baseUrl = url.substring(0, pos); | |
| 486 var newurl = baseUrl + '?' + queryString; | |
| 487 return newurl; | |
| 488 }; | |
| 489 | |
| 648 | 490 // processes some parameters into objects and stuff |
| 624 | 491 var unpackParams = function (data) { |
| 492 var settings = data.settings; | |
| 629 | 493 // zoom area |
| 624 | 494 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 636 | 495 data.zoomArea = zoomArea; |
| 629 | 496 // marks |
| 624 | 497 var marks = []; |
| 643 | 498 if (settings.mk) { |
| 499 var mk = settings.mk; | |
| 500 if (mk.indexOf(";") >= 0) { | |
| 501 var pa = mk.split(";"); // old format with ";" | |
| 502 } else { | |
| 503 var pa = mk.split(","); // new format | |
| 504 } | |
| 505 for (var i = 0; i < pa.length ; i++) { | |
| 506 var pos = pa[i].split("/"); | |
| 507 if (pos.length > 1) { | |
| 508 marks.push(geom.position(pos[0], pos[1])); | |
| 509 } | |
| 626 | 510 } |
| 624 | 511 } |
| 636 | 512 data.marks = marks; |
| 643 | 513 // mo (Scaler flags) |
| 514 var flags = {}; | |
| 515 if (settings.mo) { | |
| 516 var pa = settings.mo.split(","); | |
| 517 for (var i = 0; i < pa.length ; i++) { | |
| 518 flags[pa[i]] = pa[i]; | |
| 519 } | |
| 520 } | |
| 521 data.scalerFlags = flags; | |
| 522 // clop (digilib options) | |
| 523 var opts = {}; | |
| 524 if (settings.clop) { | |
| 525 var pa = settings.clop.split(","); | |
| 526 for (var i = 0; i < pa.length ; i++) { | |
| 527 opts[pa[i]] = pa[i]; | |
| 528 } | |
| 529 } | |
| 530 data.dlOpts = opts; | |
| 654 | 531 // birdview option |
| 532 if (opts.birdview) { | |
| 533 settings.isBirdDivVisible = 1; | |
| 534 } | |
| 648 | 535 }; |
| 536 | |
| 624 | 537 // put objects back into parameters |
| 538 var packParams = function (data) { | |
| 539 var settings = data.settings; | |
| 629 | 540 // zoom area |
| 636 | 541 if (data.zoomArea) { |
| 640 | 542 settings.wx = cropFloat(data.zoomArea.x); |
| 543 settings.wy = cropFloat(data.zoomArea.y); | |
| 544 settings.ww = cropFloat(data.zoomArea.width); | |
| 545 settings.wh = cropFloat(data.zoomArea.height); | |
| 624 | 546 } |
| 629 | 547 // marks |
| 636 | 548 if (data.marks) { |
| 643 | 549 settings.mk = ''; |
| 636 | 550 for (var i = 0; i < data.marks.length; i++) { |
| 643 | 551 if (i) { |
| 552 settings.mk += ','; | |
| 553 } | |
| 554 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
| 624 | 555 } |
| 643 | 556 } |
| 557 // Scaler flags | |
| 558 if (data.scalerFlags) { | |
| 559 var mo = ''; | |
| 560 for (var f in data.scalerFlags) { | |
| 561 if (mo) { | |
| 562 mo += ','; | |
| 563 } | |
| 564 mo += f; | |
| 565 } | |
| 566 settings.mo = mo; | |
| 567 } | |
| 654 | 568 // digilib option birdview |
| 569 if (settings.isBirdDivVisible) { | |
| 570 data.dlOpts.birdview = 1; | |
| 655 | 571 } else { |
| 572 delete data.dlOpts.birdview; | |
| 654 | 573 } |
| 643 | 574 // digilib options |
| 575 if (data.dlOpts) { | |
| 576 var clop = ''; | |
| 577 for (var o in data.dlOpts) { | |
| 578 if (clop) { | |
| 579 clop += ','; | |
| 580 } | |
| 581 clop += o; | |
| 582 } | |
| 583 settings.clop = clop; | |
| 624 | 584 } |
| 585 }; | |
| 648 | 586 |
| 615 | 587 // (re)load the img from a new scaler URL |
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588 var redisplay = function (data) { |
| 629 | 589 var settings = data.settings; |
| 590 if (settings.interactionMode === 'fullscreen') { | |
| 591 // update location.href (browser URL) in fullscreen mode | |
|
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592 var url = getDigilibUrl(data); |
| 629 | 593 var history = window.history; |
| 594 if (typeof(history.pushState) === 'function') { | |
| 595 console.debug("we could modify history, but we don't..."); | |
| 596 } | |
| 597 window.location = url; | |
| 598 } else { | |
| 599 // embedded mode -- just change img src | |
| 600 var url = getScalerUrl(data); | |
| 601 data.$img.attr('src', url); | |
| 602 } | |
| 615 | 603 }; |
| 604 | |
| 655 | 605 // returns maximum size for scaler img in fullscreen mode |
| 606 var getFullscreenImgSize = function($elem) { | |
| 607 var $win = $(window); | |
| 608 var winH = $win.height(); | |
| 609 var winW = $win.width(); | |
| 610 // TODO: account for borders? | |
| 611 return geom.size(winW, winH); | |
| 612 }; | |
| 613 | |
| 601 | 614 // creates HTML structure for digilib in elem |
| 620 | 615 var setupScalerDiv = function (data) { |
| 616 var settings = data.settings; | |
| 640 | 617 var $elem = data.$elem; |
| 616 | 618 var $img; |
| 601 | 619 if (settings.interactionMode === 'fullscreen') { |
| 602 | 620 // fullscreen |
| 621 var imgSize = getFullscreenImgSize($elem); | |
| 643 | 622 // fitwidth/height omits destination height/width |
| 623 if (data.dlOpts['fitheight'] == null) { | |
| 624 settings.dw = imgSize.width; | |
| 625 } | |
| 626 if (data.dlOpts['fitwidth'] == null) { | |
| 627 settings.dh = imgSize.height; | |
| 628 } | |
|
606
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629 $img = $('<img/>'); |
| 629 | 630 var scalerUrl = getScalerUrl(data); |
| 631 $img.attr('src', scalerUrl); | |
| 602 | 632 } else { |
|
606
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633 // embedded mode -- try to keep img tag |
| 616 | 634 $img = $elem.find('img'); |
|
606
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635 if ($img.length > 0) { |
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636 console.debug("img detach:",$img); |
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637 $img.detach(); |
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638 } else { |
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639 $img = $('<img/>'); |
| 629 | 640 var scalerUrl = getScalerUrl(data); |
| 641 $img.attr('src', scalerUrl); | |
|
606
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642 } |
| 601 | 643 } |
|
606
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644 // create new html |
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645 $elem.empty(); // TODO: should we keep stuff for customization? |
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646 var $scaler = $('<div class="scaler"/>'); |
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647 $elem.append($scaler); |
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648 $scaler.append($img); |
| 615 | 649 $img.addClass('pic'); |
| 642 | 650 data.$scaler = $scaler; |
| 629 | 651 data.$img = $img; |
| 652 $img.load(scalerImgLoadedHandler(data)); | |
| 601 | 653 }; |
| 608 | 654 |
| 603 | 655 // creates HTML structure for buttons in elem |
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656 var setupButtons = function (data, actionGroup) { |
| 640 | 657 var $elem = data.$elem; |
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658 var settings = data.settings; |
| 603 | 659 if (settings.interactionMode === 'fullscreen') { |
| 660 // fullscreen -- create new | |
| 605 | 661 var $buttonsDiv = $('<div class="buttons"></div>'); |
| 662 $elem.append($buttonsDiv); | |
|
611
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663 var actionNames = settings[actionGroup]; |
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664 for (var i = 0; i < actionNames.length; i++) { |
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665 var actionName = actionNames[i]; |
|
644
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666 var buttonSettings = settings.buttons[actionName]; |
| 605 | 667 // construct the button html |
| 668 var $button = $('<div class="button"></div>'); | |
| 669 var $a = $('<a/>'); | |
| 607 | 670 var $img = $('<img class="button"/>'); |
| 605 | 671 $buttonsDiv.append($button); |
| 672 $button.append($a); | |
| 673 $a.append($img); | |
| 674 // add attributes and bindings | |
|
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675 $button.attr('title', buttonSettings.tooltip); |
|
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676 $button.addClass('button-' + actionName); |
| 628 | 677 // create handler for the buttons |
| 642 | 678 $a.bind('click.digilib', (function () { |
|
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679 // we create a new closure to capture the value of action |
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680 var action = buttonSettings.onclick; |
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681 if ($.isArray(action)) { |
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682 // the handler function calls digilib with action and parameters |
| 642 | 683 return function (evt) { |
|
644
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684 console.debug('click action=', action, ' evt=', evt); |
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685 $elem.digilib.apply($elem, action); |
| 642 | 686 return false; |
| 612 | 687 }; |
| 628 | 688 } else { |
|
644
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689 // the handler function calls digilib with action |
| 642 | 690 return function (evt) { |
|
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691 console.debug('click action=', action, ' evt=', evt); |
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692 $elem.digilib(action); |
| 642 | 693 return false; |
| 628 | 694 }; |
| 695 } | |
| 696 })()); | |
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697 $img.attr('src', settings.buttonsImagePath + buttonSettings.img); |
| 630 | 698 } |
| 604 | 699 } |
| 655 | 700 // make buttons div scroll if too large for window |
| 701 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 702 $buttonsDiv.css('position', 'absolute'); | |
| 703 } | |
| 605 | 704 return $buttonsDiv; |
| 603 | 705 }; |
| 608 | 706 |
| 707 // creates HTML structure for the bird's eye view in elem | |
| 631 | 708 var setupBirdDiv = function (data) { |
| 640 | 709 var $elem = data.$elem; |
|
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710 var settings = data.settings; |
| 608 | 711 // use only the relevant parameters |
| 712 var keys = ['fn','pn','dw','dh']; | |
| 632 | 713 var birdSettings = $.extend({}, settings, settings.birdDivOptions); |
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714 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
| 608 | 715 // the bird's eye div |
|
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716 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 608 | 717 // the detail indicator frame |
| 648 | 718 var $birdzoomDiv = $('<div class="birdzoom" style="position: absolute; background-color: transparent;"/>'); |
| 608 | 719 // the small image |
| 720 var $birdImg = $('<img class="birdimg"/>'); | |
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721 $elem.append($birdDiv); |
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722 $birdDiv.append($birdzoomDiv); |
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723 $birdDiv.append($birdImg); |
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724 data.$birdDiv = $birdDiv; |
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725 data.$birdImg = $birdImg; |
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726 $birdImg.load(birdImgLoadedHandler(data)); |
| 608 | 727 $birdImg.attr('src', birdUrl); |
|
633
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728 if (data.settings.isBirdDivVisible) { |
|
651
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729 $birdDiv.fadeIn(); |
|
633
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730 } |
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|
731 }; |
| 608 | 732 |
| 618 | 733 // creates HTML structure for the about view in elem |
|
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734 var setupAboutDiv = function (data) { |
| 640 | 735 var $elem = data.$elem; |
|
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|
736 var settings = data.settings; |
| 618 | 737 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 609 | 738 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 739 var $link = $('<a/>'); | |
| 740 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 741 var $content = $('<p/>'); | |
| 742 $elem.append($aboutDiv); | |
| 743 $aboutDiv.append($header); | |
| 744 $aboutDiv.append($link); | |
| 745 $aboutDiv.append($content); | |
| 746 $link.append($logo); | |
| 747 $logo.attr('src', settings.logoUrl); | |
| 628 | 748 $link.attr('href', settings.homeUrl); |
| 609 | 749 $content.text('Version: ' + settings.version); |
| 628 | 750 // click hides |
| 642 | 751 $aboutDiv.bind('click.digilib', function () { |
| 639 | 752 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 642 | 753 return false; |
| 754 }); | |
| 628 | 755 data.$aboutDiv = $aboutDiv; |
| 627 | 756 }; |
| 757 | |
| 628 | 758 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 759 var showDiv = function (isVisible, $div, show) { | |
| 638 | 760 if (show == null) { |
| 628 | 761 // toggle visibility |
| 762 isVisible = !isVisible; | |
| 763 } else { | |
| 764 // set visibility | |
| 765 isVisible = show; | |
| 766 } | |
| 767 if (isVisible) { | |
| 768 $div.fadeIn(); | |
| 769 } else { | |
| 770 $div.fadeOut(); | |
| 771 } | |
| 772 return isVisible; | |
| 627 | 773 }; |
| 609 | 774 |
|
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775 // create Transform from area and $img |
|
657
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|
776 var getImgTrafo = function ($img, area, data) { |
|
651
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777 var picrect = geom.rectangle($img); |
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|
778 var trafo = geom.transform(); |
|
657
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|
779 // zoom area offset |
|
651
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780 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
|
657
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|
781 // zoom area size |
|
651
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|
782 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
|
657
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|
783 // rotate |
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|
784 if (data) { |
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|
785 var rot = trafo.getRotationAround(-parseFloat(data.settings.rot), |
|
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|
786 geom.position(0.5 * area.width + area.x, 0.5 * area.height + area.y)); |
|
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|
787 trafo.concat(rot); |
|
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|
788 } |
|
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|
789 // scale to screen position and size |
|
651
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|
790 trafo.concat(trafo.getScale(picrect)); |
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791 trafo.concat(trafo.getTranslation(picrect)); |
|
657
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|
792 /* if (data && data.settings.rot) { |
|
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793 var rot = trafo.getRotationAround(-data.settings.rot, |
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794 geom.position(0.5 * picrect.width + picrect.x, 0.5 * picrect.height + picrect.y)); |
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795 //var trans1 = trafo.getTranslation(geom.position(-0.5*picrect.width, -0.5*picrect.height)); |
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796 //var rot = trafo.getRotation(data.settings.rot); |
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797 //var trans2 = trafo.getTranslation(geom.position(0.5*picrect.width, 0.5*pirect.height)); |
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798 //trafo.concat(trans1); |
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799 trafo.concat(rot); |
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800 //trafo.concat(trans2); |
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801 } */ |
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802 return trafo; |
| 648 | 803 }; |
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804 |
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805 // returns function for load event of scaler img |
| 629 | 806 var scalerImgLoadedHandler = function (data) { |
| 807 var $img = data.$img; | |
| 626 | 808 return function () { |
| 620 | 809 console.debug("img loaded! this=", this, " data=", data); |
| 810 // create Transform from current area and picsize | |
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811 data.imgTrafo = getImgTrafo($img, data.zoomArea, data); |
| 620 | 812 // display marks |
| 626 | 813 renderMarks(data); |
| 620 | 814 //digilib.showArrows(); // show arrow overlays for zoom navigation |
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815 }; |
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816 }; |
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817 |
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818 // returns function for load event of bird's eye view img |
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819 var birdImgLoadedHandler = function (data) { |
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820 var $img = data.$birdImg; |
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821 return function () { |
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822 console.debug("birdimg loaded! this=", this, " data=", data); |
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823 // create Transform from current area and picsize |
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824 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
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825 // display marks |
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826 renderBirdArea(data); |
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827 }; |
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828 }; |
| 626 | 829 |
| 830 // place marks on the image | |
| 831 var renderMarks = function (data) { | |
| 640 | 832 var $elem = data.$elem; |
| 636 | 833 var marks = data.marks; |
| 642 | 834 // TODO: clear marks first(?) |
| 626 | 835 for (var i = 0; i < marks.length; i++) { |
| 836 var mark = marks[i]; | |
| 636 | 837 if (data.zoomArea.containsPosition(mark)) { |
| 626 | 838 var mpos = data.imgTrafo.transform(mark); |
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839 console.debug("renderMarks: mpos=",mpos); |
| 626 | 840 // create mark |
| 841 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 842 var $mark = $(html); | |
| 843 $elem.append($mark); | |
| 647 | 844 $mark.offset({left : mpos.x, top : mpos.y}); |
| 626 | 845 } |
| 846 } | |
| 847 }; | |
| 648 | 848 |
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849 var renderBirdArea = function (data) { |
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850 var $ind = data.$birdDiv.find('div.birdzoom'); |
| 652 | 851 var zoomArea = data.zoomArea; |
| 852 var indRect = data.birdTrafo.transform(zoomArea); | |
| 653 | 853 if (isFullArea(zoomArea)) return $ind.hide(); |
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854 // TODO: set the coordinates all in one call? |
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855 $ind.width(indRect.width); |
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856 $ind.height(indRect.height); |
| 652 | 857 // offset minus frame width |
| 858 $ind.offset({ left : indRect.x-2, top : indRect.y-2 }); | |
| 859 $ind.css(data.settings.birdIndicatorStyle); | |
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860 }; |
| 652 | 861 |
| 640 | 862 // zooms by the given factor |
| 636 | 863 var zoomBy = function(data, factor) { |
| 864 var area = data.zoomArea; | |
| 865 var newarea = area.copy(); | |
| 866 // scale | |
| 867 newarea.width /= factor; | |
| 868 newarea.height /= factor; | |
| 869 // and recenter | |
| 870 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 871 newarea.y -= 0.5 * (newarea.height - area.height); | |
| 872 newarea = MAX_ZOOMAREA.fit(newarea); | |
| 873 data.zoomArea = newarea; | |
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874 redisplay(data); |
| 636 | 875 }; |
| 876 | |
| 640 | 877 // add a mark where clicked |
| 878 var setMark = function (data) { | |
| 642 | 879 var $scaler = data.$scaler; |
| 640 | 880 console.debug("setmark"); |
| 881 // start event capturing | |
| 642 | 882 $scaler.one('click.digilib', function (evt) { |
| 640 | 883 // event handler adding a new mark |
| 884 console.debug("setmark.click evt=",evt); | |
| 885 var mpos = geom.position(evt.pageX, evt.pageY); | |
| 886 var pos = data.imgTrafo.invtransform(mpos); | |
| 887 data.marks.push(pos); | |
| 888 redisplay(data); | |
| 642 | 889 return false; // do we even get here? |
| 640 | 890 }); |
| 891 }; | |
| 647 | 892 |
| 893 var zoomArea = function(data) { | |
| 894 $elem = data.$elem; | |
| 895 $scaler = data.$scaler; | |
| 896 var pt1, pt2; | |
| 897 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 898 $elem.append($zoomDiv); | |
| 899 //var overlay = getElement("overlay"); | |
| 900 // use overlay div to avoid <img> mousemove problems | |
| 901 var picRect = geom.rectangle($scaler); | |
| 902 // FIX ME: is there a way to query the border width from CSS info? | |
| 903 // rect.x -= 2; // account for overlay borders | |
| 904 // rect.y -= 2; | |
| 905 //moveElement(overlay, picRect); | |
| 906 //showElement(overlay, true); | |
| 907 // start event capturing | |
| 908 //registerEvent("mousedown", overlay, zoomStart); | |
| 909 //registerEvent("mousedown", this.scalerImg, zoomStart); | |
| 910 | |
| 911 var zoomStart = function (evt) { | |
| 912 pt1 = geom.position(evt); | |
| 913 // setup and show zoom div | |
| 914 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
| 915 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
| 916 $zoomDiv.show(); | |
| 917 // register events | |
| 918 $elem.bind("mousemove.digilib", zoomMove); | |
| 919 $elem.bind("mouseup.digilib", zoomEnd); | |
| 920 return false; | |
| 921 }; | |
| 922 | |
| 923 // mouseup handler: end moving | |
| 924 var zoomEnd = function (evt) { | |
| 925 pt2 = geom.position(evt); | |
| 926 // assume a click and continue if the area is too small | |
| 927 var clickRect = geom.rectangle(pt1, pt2); | |
| 928 clickRect.normalize(); | |
| 929 console.debug("clickRect.getArea()=",clickRect.getArea()); | |
| 930 if (clickRect.getArea() <= 5) { | |
| 931 return false; | |
| 932 } | |
| 933 // hide zoom div | |
| 934 $zoomDiv.remove(); | |
| 935 // unregister events | |
| 936 $elem.unbind("mousemove.digilib", zoomMove); | |
| 937 $elem.unbind("mouseup.digilib", zoomEnd); | |
| 938 // clip and transform | |
| 939 clickRect.clipTo(picRect); | |
| 940 var area = data.imgTrafo.invtransform(clickRect); | |
| 941 data.zoomArea = area; | |
| 942 // zoomed is always fit | |
| 943 data.settings.ws = 1; | |
| 944 redisplay(data); | |
| 945 return false; | |
| 946 }; | |
| 947 | |
| 948 // mouse move handler | |
| 949 var zoomMove = function (evt) { | |
| 950 pt2 = geom.position(evt); | |
| 951 var rect = geom.rectangle(pt1, pt2); | |
| 952 rect.normalize(); | |
| 953 rect.clipTo(picRect); | |
| 954 // update zoom div | |
| 955 $zoomDiv.offset({left : rect.x, top : rect.y}); | |
| 956 $zoomDiv.width(rect.width).height(rect.height); | |
| 957 return false; | |
| 958 }; | |
| 959 | |
| 960 // bind start zoom handler | |
| 961 $scaler.one('mousedown.digilib', zoomStart); | |
| 962 }; | |
| 640 | 963 |
| 643 | 964 // sets a key to a value (relative values with +/- if relative=true) |
| 965 var setNumValue = function(settings, key, value) { | |
| 966 if (isNumber(value)) return settings[key] = value; | |
| 967 var sign = value.substring(0,1); | |
| 968 if (sign === '+' || sign === '-') { | |
| 969 if (settings[key] == null) { | |
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970 // this isn't perfect but still... |
| 643 | 971 settings[key] = 0; |
| 972 } | |
| 973 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
| 974 } else { | |
| 975 settings[key] = value; | |
| 976 } | |
| 977 return settings[key]; | |
| 978 }; | |
| 648 | 979 |
| 980 // auxiliary function (from old dllib.js) | |
| 652 | 981 isFullArea = function(area) { |
| 982 return (area.width === 1.0) && (area.height === 1.0); | |
| 648 | 983 }; |
| 984 | |
| 634 | 985 // auxiliary function (from Douglas Crockford, A.10) |
| 986 var isNumber = function isNumber(value) { | |
| 987 return typeof value === 'number' && isFinite(value); | |
| 988 }; | |
| 648 | 989 |
| 624 | 990 // auxiliary function to crop senseless precision |
| 991 var cropFloat = function (x) { | |
| 630 | 992 return parseInt(10000 * x, 10) / 10000; |
| 624 | 993 }; |
| 648 | 994 |
| 598 | 995 // hook plugin into jquery |
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996 $.fn.digilib = function(action) { |
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997 if (actions[action]) { |
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998 // call action on this with the remaining arguments (inserting data as first argument) |
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999 var $elem = $(this); |
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1000 var data = $elem.data('digilib'); |
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1001 var args = Array.prototype.slice.call(arguments, 1); |
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1002 args.unshift(data); |
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1003 return actions[action].apply(this, args); |
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1004 } else if (typeof(action) === 'object' || !action) { |
| 627 | 1005 // call init on this |
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1006 return actions.init.apply(this, arguments); |
| 598 | 1007 } else { |
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1008 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
| 598 | 1009 } |
| 1010 }; | |
| 597 | 1011 |
| 1012 })(jQuery); |