Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 701:2660b733a1e7 jquery
img reload works for fullscreen, but somehow not precise
| author | hertzhaft |
|---|---|
| date | Fri, 28 Jan 2011 19:50:50 +0100 |
| parents | 5909beb76d16 |
| children | 89ff5133d1c1 |
| 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 = { | |
| 685 | 9 log : function(){}, |
| 10 debug : function(){}, | |
| 11 error : function(){} | |
| 12 }; | |
| 13 var customConsole = true; | |
| 14 }; | |
| 597 | 15 |
| 16 (function($) { | |
|
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17 var buttons = { |
| 603 | 18 reference : { |
| 682 | 19 onclick : "reference", |
| 603 | 20 tooltip : "get a reference URL", |
| 21 img : "reference.png" | |
| 22 }, | |
| 23 zoomin : { | |
| 636 | 24 onclick : ["zoomBy", 1.4], |
| 603 | 25 tooltip : "zoom in", |
| 26 img : "zoom-in.png" | |
| 27 }, | |
| 28 zoomout : { | |
| 636 | 29 onclick : ["zoomBy", 0.7], |
| 603 | 30 tooltip : "zoom out", |
| 31 img : "zoom-out.png" | |
| 32 }, | |
| 33 zoomarea : { | |
| 647 | 34 onclick : "zoomArea", |
| 603 | 35 tooltip : "zoom area", |
| 36 img : "zoom-area.png" | |
| 37 }, | |
| 38 zoomfull : { | |
| 643 | 39 onclick : "zoomFull", |
| 603 | 40 tooltip : "view the whole image", |
| 41 img : "zoom-full.png" | |
| 42 }, | |
| 43 pagewidth : { | |
| 643 | 44 onclick : ["zoomFull", "width"], |
| 603 | 45 tooltip : "page width", |
| 46 img : "pagewidth.png" | |
| 47 }, | |
| 48 back : { | |
| 616 | 49 onclick : ["gotoPage", "-1"], |
| 603 | 50 tooltip : "goto previous image", |
| 51 img : "back.png" | |
| 52 }, | |
| 53 fwd : { | |
| 616 | 54 onclick : ["gotoPage", "+1"], |
| 603 | 55 tooltip : "goto next image", |
| 56 img : "fwd.png" | |
| 57 }, | |
| 58 page : { | |
| 59 onclick : "javascript:gotoPageWin()", | |
| 60 tooltip : "specify image", | |
| 61 img : "page.png" | |
| 62 }, | |
| 63 bird : { | |
| 628 | 64 onclick : "showBirdDiv", |
| 603 | 65 tooltip : "show bird's eye view", |
| 66 img : "birds-eye.png" | |
| 67 }, | |
| 68 help : { | |
| 628 | 69 onclick : "showAboutDiv", |
| 603 | 70 tooltip : "about Digilib", |
| 71 img : "help.png" | |
| 72 }, | |
| 73 reset : { | |
| 681 | 74 onclick : "reset", |
| 603 | 75 tooltip : "reset image", |
| 76 img : "reset.png" | |
| 77 }, | |
| 78 mark : { | |
| 640 | 79 onclick : "setMark", |
| 603 | 80 tooltip : "set a mark", |
| 81 img : "mark.png" | |
| 82 }, | |
| 83 delmark : { | |
| 643 | 84 onclick : "removeMark", |
| 603 | 85 tooltip : "delete the last mark", |
| 86 img : "delmark.png" | |
| 87 }, | |
| 88 hmir : { | |
| 654 | 89 onclick : ["mirror", "h"], |
| 603 | 90 tooltip : "mirror horizontally", |
| 91 img : "mirror-horizontal.png" | |
| 92 }, | |
| 93 vmir : { | |
| 654 | 94 onclick : ["mirror", "v"], |
| 603 | 95 tooltip : "mirror vertically", |
| 96 img : "mirror-vertical.png" | |
| 97 }, | |
| 98 rot : { | |
| 656 | 99 onclick : "rotate", |
| 603 | 100 tooltip : "rotate image", |
| 101 img : "rotate.png" | |
| 102 }, | |
| 103 brgt : { | |
| 656 | 104 onclick : "brightness", |
| 603 | 105 tooltip : "set brightness", |
| 106 img : "brightness.png" | |
| 107 }, | |
| 108 cont : { | |
| 656 | 109 onclick : "contrast", |
| 603 | 110 tooltip : "set contrast", |
| 111 img : "contrast.png" | |
| 112 }, | |
| 113 rgb : { | |
| 114 onclick : "javascript:setParamWin('rgb', '...')", | |
| 115 tooltip : "set rgb values", | |
| 116 img : "rgb.png" | |
| 117 }, | |
| 118 quality : { | |
| 696 | 119 onclick : "setquality", |
| 603 | 120 tooltip : "set image quality", |
| 121 img : "quality.png" | |
| 122 }, | |
| 123 size : { | |
| 124 onclick : "javascript:toggleSizeMenu()", | |
| 125 tooltip : "set page size", | |
| 126 img : "size.png" | |
| 127 }, | |
| 128 calibrationx : { | |
| 129 onclick : "javascript:calibrate('x')", | |
| 130 tooltip : "calibrate screen x-ratio", | |
| 131 img : "calibration-x.png" | |
| 132 }, | |
| 133 scale : { | |
| 134 onclick : "javascript:toggleScaleMenu()", | |
| 135 tooltip : "change image scale", | |
| 136 img : "original-size.png" | |
| 137 }, | |
| 692 | 138 toggleoptions : { |
| 139 onclick : "morebuttons", | |
| 140 tooltip : "more options", | |
| 141 img : "options.png" | |
| 142 }, | |
| 683 | 143 moreoptions : { |
| 144 onclick : ["morebuttons", "+1"], | |
| 145 tooltip : "more options", | |
| 146 img : "options.png" | |
| 147 }, | |
| 148 lessoptions : { | |
| 149 onclick : ["morebuttons", "-1"], | |
| 150 tooltip : "less options", | |
| 603 | 151 img : "options.png" |
| 152 }, | |
| 153 SEP : { | |
| 154 img : "sep.png" | |
| 155 } | |
| 156 }; | |
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157 |
| 598 | 158 var defaults = { |
| 609 | 159 // version of this script |
| 628 | 160 'version' : 'jquery.digilib.js 0.9', |
| 609 | 161 // logo url |
| 162 'logoUrl' : '../img/digilib-logo-text1.png', | |
| 628 | 163 // homepage url (behind logo) |
| 164 'homeUrl' : 'http://digilib.berlios.de', | |
| 603 | 165 // base URL to Scaler servlet |
| 645 | 166 'scalerBaseUrl' : null, |
| 603 | 167 // list of Scaler parameters |
| 620 | 168 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
| 169 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
| 170 // Scaler parameter defaults | |
| 636 | 171 'pn' : 1, |
| 620 | 172 'ww' : 1.0, |
| 173 'wh' : 1.0, | |
| 174 'wx' : 0.0, | |
| 175 'wy' : 0.0, | |
| 176 'ws' : 1.0, | |
| 636 | 177 'mo' : '', |
| 178 'rot' : 0, | |
| 179 'cont' : 0, | |
| 180 'brgt' : 0, | |
| 181 'rgbm' : '0/0/0', | |
| 182 'rgba' : '0/0/0', | |
| 183 'ddpi' : null, | |
| 184 'ddpix' : null, | |
| 185 'ddpiy' : null, | |
|
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186 // list of digilib parameters |
| 643 | 187 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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188 // digilib parameter defaults |
| 636 | 189 'mk' : '', |
| 643 | 190 'clop' : '', |
| 636 | 191 // mode of operation: |
| 192 // fullscreen = take parameters from page URL, keep state in page URL | |
| 193 // embedded = take parameters from Javascript options, keep state inside object | |
| 603 | 194 'interactionMode' : 'fullscreen', |
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195 // buttons |
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196 'buttons' : buttons, |
| 661 | 197 // defaults for digilib buttons |
| 658 | 198 'buttonSettings' : { |
| 199 'fullscreen' : { | |
| 661 | 200 // path to button images (must end with a slash) |
| 658 | 201 'imagePath' : 'img/fullscreen/', |
| 692 | 202 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","toggleoptions"], |
| 203 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","toggleoptions"], | |
| 675 | 204 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 205 }, |
| 206 'embedded' : { | |
| 207 'imagePath' : 'img/embedded/16/', | |
| 692 | 208 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","back","fwd","page","bird","SEP","help","reset","toggleoptions"], |
| 209 'specialSet' : ["hmir","vmir","rot","brgt","cont","rgb","quality","size","SEP","toggleoptions"], | |
| 675 | 210 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 211 } |
| 690 | 212 }, |
| 213 // number of visible button groups | |
| 214 'visibleButtonSets' : 1, | |
| 609 | 215 // is birdView shown? |
| 216 'isBirdDivVisible' : false, | |
| 661 | 217 // dimensions of bird's eye div |
| 667 | 218 'birdDivWidth' : 200, |
| 219 'birdDivHeight' : 200, | |
| 661 | 220 // style of the zoom area indicator in the bird's eye div |
| 652 | 221 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
| 661 | 222 // style of zoom area "rubber band" |
| 223 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
| 609 | 224 // is the "about" window shown? |
| 225 'isAboutDivVisible' : false | |
| 226 | |
| 603 | 227 }; |
| 648 | 228 |
| 601 | 229 // affine geometry classes |
| 230 var geom = dlGeometry(); | |
| 648 | 231 |
| 636 | 232 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
| 648 | 233 |
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234 var actions = { |
| 661 | 235 // init: digilib initialization |
| 236 init : function(options) { | |
| 237 // settings for this digilib instance are merged from defaults and options | |
| 238 var settings = $.extend({}, defaults, options); | |
| 239 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
| 240 var queryParams = {}; | |
| 241 if (isFullscreen) { | |
| 242 queryParams = parseQueryParams(); | |
| 243 // check scalerBaseUrl | |
| 244 if (settings.scalerBaseUrl == null) { | |
| 245 // try the host this came from | |
| 246 var h = window.location.host; | |
| 247 if (window.location.host) { | |
| 248 var url = window.location.href; | |
| 249 // assume the page lives in [webapp]/jquery/ | |
| 250 var pos = url.indexOf('jquery/'); | |
| 251 if (pos > 0) { | |
| 252 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
| 645 | 253 } |
| 254 } | |
| 629 | 255 } |
| 661 | 256 } |
| 257 return this.each(function() { | |
| 258 var $elem = $(this); | |
| 259 var data = $elem.data('digilib'); | |
| 681 | 260 var params, elemSettings; |
| 661 | 261 // if the plugin hasn't been initialized yet |
| 262 if (!data) { | |
| 263 // merge query parameters | |
| 264 if (isFullscreen) { | |
| 681 | 265 params = queryParams; |
| 661 | 266 } else { |
| 681 | 267 params = parseImgParams($elem); |
| 268 }; | |
| 661 | 269 // store $(this) element in the settings |
| 681 | 270 elemSettings = $.extend({}, settings, params); |
| 690 | 271 data = { |
| 661 | 272 $elem : $elem, |
| 273 settings : elemSettings, | |
| 681 | 274 queryParams : params |
| 661 | 275 }; |
| 276 // store in data element | |
| 277 $elem.data('digilib', data); | |
| 278 } | |
| 279 unpackParams(data); | |
| 675 | 280 // create HTML structure for scaler |
| 661 | 281 setupScalerDiv(data); |
| 690 | 282 // add buttons |
| 283 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { | |
| 284 showButtons(data, true, i); | |
| 285 } | |
| 661 | 286 // bird's eye view creation |
| 287 if (elemSettings.isBirdDivVisible) { | |
| 631 | 288 setupBirdDiv(data); |
| 289 } | |
| 661 | 290 // about window creation - TODO: could be deferred? restrict to only one item? |
| 291 setupAboutDiv(data); | |
| 700 | 292 // TODO: the actual moving code |
| 293 setupZoomDrag(data); | |
| 661 | 294 }); |
| 295 }, | |
| 296 | |
| 297 // destroy: clean up digilib | |
| 298 destroy : function(data) { | |
| 299 return this.each(function(){ | |
| 300 var $elem = $(this); | |
| 301 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
| 302 data.digilib.remove(); | |
| 303 $elem.removeData('digilib'); | |
| 304 }); | |
| 305 }, | |
| 306 | |
| 307 // show or hide the 'about' window | |
| 308 showAboutDiv : function(data, show) { | |
| 309 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
| 310 }, | |
| 648 | 311 |
| 661 | 312 // event handler: toggles the visibility of the bird's eye window |
| 313 showBirdDiv : function (data, show) { | |
| 314 if (data.$birdDiv == null) { | |
| 315 // no bird div -> create | |
| 316 setupBirdDiv(data); | |
| 317 } | |
| 318 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
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319 data.$birdImg.triggerHandler('load'); |
| 661 | 320 }, |
| 321 | |
| 322 // goto given page nr (+/-: relative) | |
| 323 gotoPage : function (data, pageNr) { | |
| 324 var settings = data.settings; | |
| 325 var oldpn = settings.pn; | |
| 326 var pn = setNumValue(settings, "pn", pageNr); | |
| 327 if (pn == null) return false; // nothing happened | |
| 328 if (pn < 1) { | |
| 329 alert("no such page (page number too low)"); | |
| 330 settings.pn = oldpn; | |
| 331 return false; | |
| 332 } | |
| 333 if (settings.pt) { | |
| 334 if (pn > settings.pt) { | |
| 335 alert("no such page (page number too high)"); | |
| 616 | 336 settings.pn = oldpn; |
| 337 return false; | |
| 627 | 338 } |
| 661 | 339 } |
| 340 // reset mk and others(?) | |
| 341 data.marks = []; | |
| 342 data.zoomArea = MAX_ZOOMAREA; | |
| 343 // then reload | |
| 344 redisplay(data); | |
| 345 }, | |
| 647 | 346 |
| 661 | 347 // zoom by a given factor |
| 348 zoomBy : function (data, factor) { | |
| 349 zoomBy(data, factor); | |
| 350 }, | |
| 640 | 351 |
| 661 | 352 // zoom interactively |
| 353 zoomArea : function (data) { | |
| 354 zoomArea(data); | |
| 355 }, | |
| 643 | 356 |
| 661 | 357 // zoom out to full page |
| 358 zoomFull : function (data, mode) { | |
| 359 data.zoomArea = MAX_ZOOMAREA; | |
| 360 if (mode === 'width') { | |
| 361 data.dlOpts.fitwidth = 1; | |
| 362 delete data.dlOpts.fitheight; | |
| 363 } else if (mode === 'height') { | |
| 364 data.dlOpts.fitheight = 1; | |
| 365 delete data.dlOpts.fitwidth; | |
| 366 } else { | |
| 367 delete data.dlOpts.fitwidth; | |
| 368 delete data.dlOpts.fitheight; | |
| 369 } | |
| 370 redisplay(data); | |
| 371 }, | |
| 372 | |
| 373 // set a mark by clicking (or giving a position) | |
| 374 setMark : function (data, mpos) { | |
| 375 if (mpos == null) { | |
| 376 // interactive | |
| 377 setMark(data); | |
| 378 } else { | |
| 379 // use position | |
| 380 data.marks.push(pos); | |
| 656 | 381 redisplay(data); |
| 597 | 382 } |
| 661 | 383 }, |
| 384 | |
| 385 // remove the last mark | |
| 386 removeMark : function (data) { | |
| 387 data.marks.pop(); | |
| 388 redisplay(data); | |
| 389 }, | |
| 390 | |
| 391 // mirror the image | |
| 392 mirror : function (data, mode) { | |
| 393 var flags = data.scalerFlags; | |
| 394 if (mode === 'h') { | |
| 395 if (flags.hmir) { | |
| 396 delete flags.hmir; | |
| 397 } else { | |
| 398 flags.hmir = 1; | |
| 399 } | |
| 400 } else { | |
| 401 if (flags.vmir) { | |
| 402 delete flags.vmir; | |
| 403 } else { | |
| 404 flags.vmir = 1; | |
| 405 } | |
| 406 } | |
| 407 redisplay(data); | |
| 408 }, | |
| 643 | 409 |
| 661 | 410 // rotate the image |
| 411 rotate : function (data, angle) { | |
| 412 var rot = data.settings.rot; | |
| 413 if (angle == null) { | |
| 414 angle = window.prompt("Rotation angle:", rot); | |
| 415 } | |
| 416 data.settings.rot = angle; | |
| 417 redisplay(data); | |
| 418 }, | |
| 419 | |
| 420 // change brightness | |
| 421 brightness : function (data, factor) { | |
| 422 var brgt = data.settings.brgt; | |
| 423 if (factor == null) { | |
| 424 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 425 } | |
| 426 data.settings.brgt = factor; | |
| 427 redisplay(data); | |
| 428 }, | |
| 429 | |
| 430 // change contrast | |
| 431 contrast : function (data, factor) { | |
| 432 var cont = data.settings.cont; | |
| 433 if (factor == null) { | |
| 434 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 435 } | |
| 436 data.settings.cont = factor; | |
| 437 redisplay(data); | |
| 681 | 438 }, |
| 683 | 439 |
| 440 // display more (or less) button sets | |
| 441 morebuttons : function (data, more) { | |
| 689 | 442 var settings = data.settings; |
| 692 | 443 if (more == null) { |
| 696 | 444 // toggle more or less (only works for 2 sets) |
| 692 | 445 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
| 446 if (settings.visibleButtonSets >= maxbtns) { | |
| 447 more = '-1'; | |
| 448 } else { | |
| 449 more = '+1'; | |
| 450 } | |
| 451 } | |
| 683 | 452 if (more === '-1') { |
| 453 // remove set | |
| 690 | 454 var setIdx = settings.visibleButtonSets - 1; |
| 455 if (showButtons(data, false, setIdx, true)) { | |
| 456 settings.visibleButtonSets--; | |
| 457 } | |
| 683 | 458 } else { |
| 459 // add set | |
| 690 | 460 var setIdx = settings.visibleButtonSets; |
| 461 if (showButtons(data, true, setIdx, true)) { | |
| 462 settings.visibleButtonSets++; | |
| 683 | 463 } |
| 464 } | |
| 684 | 465 }, |
| 681 | 466 |
| 696 | 467 // reset image parameters to defaults |
| 681 | 468 reset : function (data) { |
| 469 var settings = data.settings; | |
| 470 var paramNames = settings.digilibParamNames; | |
| 471 var params = data.queryParams; | |
| 472 resetData(data); | |
| 473 // delete all digilib parameters | |
| 474 for (var i = 0; i < paramNames.length; i++) { | |
| 475 var paramName = paramNames[i]; | |
| 476 delete settings[paramName]; | |
| 477 }; | |
| 478 // fullscreen: restore only fn/pn parameters | |
| 479 if (settings.interactionMode === 'fullscreen') { | |
| 480 settings['fn'] = params.fn; | |
| 481 settings['pn'] = params.pn; | |
| 482 // embedded: restore original parameters | |
| 483 } else { | |
| 484 $.extend(settings, params); | |
| 485 }; | |
| 486 redisplay(data); | |
| 682 | 487 }, |
| 488 | |
| 696 | 489 // presents a reference url (returns value if noprompt) |
| 490 reference : function (data, noprompt) { | |
| 682 | 491 var settings = data.settings; |
| 492 var url; | |
| 493 if (settings.interactionMode === 'fullscreen') { | |
| 494 url = getDigilibUrl(data); | |
| 495 } else { | |
| 496 url = getScalerUrl(data); | |
| 497 }; | |
| 696 | 498 if (noprompt == null) { |
| 499 window.prompt("URL reference to the current view", url); | |
| 500 } | |
| 501 return url; | |
| 502 }, | |
| 503 | |
| 504 // set image quality | |
| 505 setquality : function (data, qual) { | |
| 506 var oldq = getQuality(data); | |
| 507 if (qual == null) { | |
| 508 qual = window.prompt("Image quality (0..2)", oldq); | |
| 509 } | |
| 510 qual = parseInt(qual, 10); | |
| 511 if (qual >= 0 && qual <= 2) { | |
| 512 setQuality(data, qual); | |
| 513 redisplay(data); | |
| 514 } | |
| 661 | 515 } |
| 598 | 516 }; |
| 597 | 517 |
| 601 | 518 // returns parameters from page url |
| 600 | 519 var parseQueryParams = function() { |
| 629 | 520 return parseQueryString(window.location.search.slice(1)); |
| 521 }; | |
| 648 | 522 |
| 629 | 523 // returns parameters from embedded img-element |
| 600 | 524 var parseImgParams = function($elem) { |
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525 var src = $elem.find('img').first().attr('src'); |
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526 if (!src) { |
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527 return null; |
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528 } |
| 600 | 529 var pos = src.indexOf('?'); |
| 530 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 531 var scalerUrl = src.substring(0, pos); | |
| 620 | 532 var params = parseQueryString(query); |
| 533 params.scalerBaseUrl = scalerUrl; | |
| 534 return params; | |
| 629 | 535 }; |
| 600 | 536 |
| 601 | 537 // parses query parameter string into parameter object |
| 600 | 538 var parseQueryString = function(query) { |
| 694 | 539 var params = {}; |
| 540 if (query == null) return params; | |
| 600 | 541 var pairs = query.split("&"); |
| 629 | 542 //var keys = []; |
| 600 | 543 for (var i = 0; i < pairs.length; i++) { |
| 544 var pair = pairs[i].split("="); | |
| 545 if (pair.length === 2) { | |
| 620 | 546 params[pair[0]] = pair[1]; |
| 629 | 547 //keys.push(pair[0]); |
| 627 | 548 } |
| 629 | 549 } |
| 620 | 550 return params; |
| 629 | 551 }; |
| 661 | 552 |
| 636 | 553 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 554 var getParamString = function (settings, keys, defaults) { | |
| 608 | 555 var paramString = ''; |
| 643 | 556 var nx = false; |
| 608 | 557 for (i = 0; i < keys.length; ++i) { |
| 558 var key = keys[i]; | |
| 656 | 559 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 608 | 560 // first param gets no '&' |
| 643 | 561 if (nx) { |
| 562 paramString += '&'; | |
| 563 } else { | |
| 564 nx = true; | |
| 565 } | |
| 608 | 566 // add parm=val |
| 567 paramString += key + '=' + settings[key]; | |
| 636 | 568 } |
| 608 | 569 } |
| 570 return paramString; | |
| 624 | 571 }; |
| 572 | |
| 629 | 573 // returns URL and query string for Scaler |
| 574 var getScalerUrl = function (data) { | |
| 646 | 575 var settings = data.settings; |
| 645 | 576 if (settings.scalerBaseUrl == null) { |
| 577 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
| 578 } | |
| 658 | 579 packParams(data); |
| 629 | 580 var keys = settings.scalerParamNames; |
| 636 | 581 var queryString = getParamString(settings, keys, defaults); |
| 629 | 582 var url = settings.scalerBaseUrl + '?' + queryString; |
| 583 return url; | |
| 584 }; | |
| 585 | |
| 586 // returns URL and query string for current digilib | |
|
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587 var getDigilibUrl = function (data) { |
| 636 | 588 packParams(data); |
| 629 | 589 var settings = data.settings; |
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590 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 629 | 591 var url = window.location.toString(); |
| 592 var pos = url.indexOf('?'); | |
| 593 var baseUrl = url.substring(0, pos); | |
| 594 var newurl = baseUrl + '?' + queryString; | |
| 595 return newurl; | |
| 596 }; | |
| 597 | |
| 648 | 598 // processes some parameters into objects and stuff |
| 624 | 599 var unpackParams = function (data) { |
| 600 var settings = data.settings; | |
| 629 | 601 // zoom area |
| 624 | 602 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 636 | 603 data.zoomArea = zoomArea; |
| 629 | 604 // marks |
| 624 | 605 var marks = []; |
| 643 | 606 if (settings.mk) { |
| 607 var mk = settings.mk; | |
| 608 if (mk.indexOf(";") >= 0) { | |
| 609 var pa = mk.split(";"); // old format with ";" | |
| 610 } else { | |
| 611 var pa = mk.split(","); // new format | |
| 612 } | |
| 613 for (var i = 0; i < pa.length ; i++) { | |
| 614 var pos = pa[i].split("/"); | |
| 615 if (pos.length > 1) { | |
| 616 marks.push(geom.position(pos[0], pos[1])); | |
| 617 } | |
| 626 | 618 } |
| 624 | 619 } |
| 636 | 620 data.marks = marks; |
| 643 | 621 // mo (Scaler flags) |
| 622 var flags = {}; | |
| 623 if (settings.mo) { | |
| 624 var pa = settings.mo.split(","); | |
| 625 for (var i = 0; i < pa.length ; i++) { | |
| 626 flags[pa[i]] = pa[i]; | |
| 627 } | |
| 628 } | |
| 629 data.scalerFlags = flags; | |
| 630 // clop (digilib options) | |
| 631 var opts = {}; | |
| 694 | 632 if (jQuery.cookie) { |
| 633 // read from cookie | |
| 634 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 635 var cp = jQuery.cookie(ck); | |
| 636 console.debug("get cookie=", ck, " value=", cp); | |
| 637 // in query string format | |
| 638 opts = parseQueryString(cp); | |
| 639 } | |
| 640 /* read from parameter clop | |
| 641 * if (settings.clop) { | |
| 643 | 642 var pa = settings.clop.split(","); |
| 643 for (var i = 0; i < pa.length ; i++) { | |
| 644 opts[pa[i]] = pa[i]; | |
| 645 } | |
| 694 | 646 } */ |
| 643 | 647 data.dlOpts = opts; |
| 654 | 648 // birdview option |
| 694 | 649 if (opts.birdview != null) { |
| 650 settings.isBirdDivVisible = opts.birdview; | |
| 651 } | |
| 652 // visible button sets | |
| 653 if (opts.buttons != null) { | |
| 654 settings.visibleButtonSets = opts.buttons; | |
| 655 } | |
| 648 | 656 }; |
| 657 | |
| 624 | 658 // put objects back into parameters |
| 659 var packParams = function (data) { | |
| 660 var settings = data.settings; | |
| 629 | 661 // zoom area |
| 636 | 662 if (data.zoomArea) { |
| 640 | 663 settings.wx = cropFloat(data.zoomArea.x); |
| 664 settings.wy = cropFloat(data.zoomArea.y); | |
| 665 settings.ww = cropFloat(data.zoomArea.width); | |
| 666 settings.wh = cropFloat(data.zoomArea.height); | |
| 624 | 667 } |
| 629 | 668 // marks |
| 636 | 669 if (data.marks) { |
| 643 | 670 settings.mk = ''; |
| 636 | 671 for (var i = 0; i < data.marks.length; i++) { |
| 643 | 672 if (i) { |
| 673 settings.mk += ','; | |
| 674 } | |
| 675 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
| 624 | 676 } |
| 643 | 677 } |
| 678 // Scaler flags | |
| 679 if (data.scalerFlags) { | |
| 680 var mo = ''; | |
| 681 for (var f in data.scalerFlags) { | |
| 682 if (mo) { | |
| 683 mo += ','; | |
| 684 } | |
| 685 mo += f; | |
| 686 } | |
| 687 settings.mo = mo; | |
| 688 } | |
| 694 | 689 // save digilib settings in options |
| 690 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
| 691 data.dlOpts.buttons = settings.visibleButtonSets; | |
| 681 | 692 |
| 694 | 693 // save digilib options in cookie |
| 700 | 694 // TODO: in embedded mode this is not called |
| 643 | 695 if (data.dlOpts) { |
| 696 var clop = ''; | |
| 697 for (var o in data.dlOpts) { | |
| 698 if (clop) { | |
| 694 | 699 clop += '&'; |
| 700 } | |
| 701 clop += o + '=' + data.dlOpts[o]; | |
| 702 } | |
| 703 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 704 console.debug("set cookie=", ck, " value=", clop); | |
| 705 jQuery.cookie(ck, clop); | |
| 706 }; | |
| 707 /* store in parameter clop | |
| 708 * if (data.dlOpts) { | |
| 709 var clop = ''; | |
| 710 for (var o in data.dlOpts) { | |
| 711 if (clop) { | |
| 643 | 712 clop += ','; |
| 713 } | |
| 714 clop += o; | |
| 715 } | |
| 716 settings.clop = clop; | |
| 694 | 717 } */ |
| 624 | 718 }; |
| 648 | 719 |
| 681 | 720 // clear digilib data for reset |
| 721 var resetData = function (data) { | |
| 722 if (data.zoomArea) delete data.zoomArea; | |
| 723 if (data.marks) delete data.marks; | |
| 724 if (data.scalerFlags) delete data.scalerFlags; | |
| 725 if (data.dlOpts) delete data.dlOpts; | |
| 726 }; | |
| 727 | |
| 615 | 728 // (re)load the img from a new scaler URL |
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729 var redisplay = function (data) { |
| 629 | 730 var settings = data.settings; |
| 731 if (settings.interactionMode === 'fullscreen') { | |
| 732 // update location.href (browser URL) in fullscreen mode | |
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733 var url = getDigilibUrl(data); |
| 629 | 734 var history = window.history; |
| 735 if (typeof(history.pushState) === 'function') { | |
| 736 console.debug("we could modify history, but we don't..."); | |
| 737 } | |
| 738 window.location = url; | |
| 739 } else { | |
| 740 // embedded mode -- just change img src | |
| 741 var url = getScalerUrl(data); | |
| 742 data.$img.attr('src', url); | |
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743 // and update bird's eye view |
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744 //if (settings.isBirdDivVisible) { |
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745 // renderBirdZoom(data); |
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746 //} |
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747 }; |
| 615 | 748 }; |
| 749 | |
| 655 | 750 // returns maximum size for scaler img in fullscreen mode |
| 751 var getFullscreenImgSize = function($elem) { | |
| 752 var $win = $(window); | |
| 753 var winH = $win.height(); | |
| 754 var winW = $win.width(); | |
| 755 // TODO: account for borders? | |
| 756 return geom.size(winW, winH); | |
| 757 }; | |
| 758 | |
| 601 | 759 // creates HTML structure for digilib in elem |
| 620 | 760 var setupScalerDiv = function (data) { |
| 761 var settings = data.settings; | |
| 640 | 762 var $elem = data.$elem; |
| 679 | 763 var $img, scalerUrl; |
| 764 // fullscreen | |
| 601 | 765 if (settings.interactionMode === 'fullscreen') { |
| 602 | 766 var imgSize = getFullscreenImgSize($elem); |
| 643 | 767 // fitwidth/height omits destination height/width |
| 768 if (data.dlOpts['fitheight'] == null) { | |
| 769 settings.dw = imgSize.width; | |
| 679 | 770 }; |
| 643 | 771 if (data.dlOpts['fitwidth'] == null) { |
| 772 settings.dh = imgSize.height; | |
| 679 | 773 }; |
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774 $img = $('<img/>'); |
| 679 | 775 scalerUrl = getScalerUrl(data); |
| 776 // embedded mode -- try to keep img tag | |
| 602 | 777 } else { |
| 616 | 778 $img = $elem.find('img'); |
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779 if ($img.length > 0) { |
| 679 | 780 console.debug("img detach:", $img); |
| 781 scalerUrl = $img.attr('src'); | |
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782 $img.detach(); |
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783 } else { |
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784 $img = $('<img/>'); |
| 679 | 785 scalerUrl = getScalerUrl(data); |
| 786 }; | |
| 601 | 787 } |
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606
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788 // create new html |
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789 $elem.empty(); // TODO: should we keep stuff for customization? |
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790 var $scaler = $('<div class="scaler"/>'); |
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791 $elem.append($scaler); |
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792 $scaler.append($img); |
| 615 | 793 $img.addClass('pic'); |
| 642 | 794 data.$scaler = $scaler; |
| 629 | 795 data.$img = $img; |
| 680 | 796 // setup image load handler before setting the src attribute (IE bug) |
| 797 $img.load(scalerImgLoadedHandler(data)); | |
| 798 $img.attr('src', scalerUrl); | |
| 601 | 799 }; |
| 608 | 800 |
| 603 | 801 // creates HTML structure for buttons in elem |
| 690 | 802 var createButtons = function (data, buttonSetIdx) { |
| 640 | 803 var $elem = data.$elem; |
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804 var settings = data.settings; |
| 658 | 805 var mode = settings.interactionMode; |
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806 var buttonSettings = settings.buttonSettings[mode]; |
| 675 | 807 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
| 683 | 808 if (buttonGroup == null) { |
| 809 // no buttons here | |
| 810 return; | |
| 811 } | |
| 812 var $buttonsDiv = $('<div class="buttons"/>'); | |
| 675 | 813 var buttonNames = buttonSettings[buttonGroup]; |
| 814 for (var i = 0; i < buttonNames.length; i++) { | |
| 815 var buttonName = buttonNames[i]; | |
| 816 var buttonConfig = settings.buttons[buttonName]; | |
| 658 | 817 // construct the button html |
| 818 var $button = $('<div class="button"></div>'); | |
| 819 var $a = $('<a/>'); | |
| 820 var $img = $('<img class="button"/>'); | |
| 821 $buttonsDiv.append($button); | |
| 822 $button.append($a); | |
| 823 $a.append($img); | |
| 824 // add attributes and bindings | |
| 825 $button.attr('title', buttonConfig.tooltip); | |
| 675 | 826 $button.addClass('button-' + buttonName); |
| 658 | 827 // create handler for the buttons |
| 828 $a.bind('click.digilib', (function () { | |
| 829 // we create a new closure to capture the value of action | |
| 830 var action = buttonConfig.onclick; | |
| 831 if ($.isArray(action)) { | |
| 832 // the handler function calls digilib with action and parameters | |
| 833 return function (evt) { | |
| 834 console.debug('click action=', action, ' evt=', evt); | |
| 835 $elem.digilib.apply($elem, action); | |
| 836 return false; | |
| 837 }; | |
| 838 } else { | |
| 839 // the handler function calls digilib with action | |
| 840 return function (evt) { | |
| 841 console.debug('click action=', action, ' evt=', evt); | |
| 842 $elem.digilib(action); | |
| 843 return false; | |
| 844 }; | |
| 845 } | |
| 846 })()); | |
| 847 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
| 683 | 848 } |
| 655 | 849 // make buttons div scroll if too large for window |
| 850 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 851 $buttonsDiv.css('position', 'absolute'); | |
| 852 } | |
| 690 | 853 // buttons hidden at first |
| 854 $buttonsDiv.hide(); | |
| 855 $elem.append($buttonsDiv); | |
| 675 | 856 if (data.$buttonSets == null) { |
| 690 | 857 // first button set |
| 675 | 858 data.$buttonSets = [$buttonsDiv]; |
| 859 } else { | |
| 683 | 860 $elem.append($buttonsDiv); |
| 675 | 861 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
| 862 } | |
| 605 | 863 return $buttonsDiv; |
| 603 | 864 }; |
| 608 | 865 |
| 866 // creates HTML structure for the bird's eye view in elem | |
| 631 | 867 var setupBirdDiv = function (data) { |
| 640 | 868 var $elem = data.$elem; |
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869 var settings = data.settings; |
| 608 | 870 // use only the relevant parameters |
| 871 var keys = ['fn','pn','dw','dh']; | |
| 667 | 872 var birdDivOptions = { |
| 873 dw : settings.birdDivWidth, | |
| 874 dh : settings.birdDivHeight | |
| 875 }; | |
| 876 var birdSettings = $.extend({}, settings, birdDivOptions); | |
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877 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
| 608 | 878 // the bird's eye div |
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879 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 608 | 880 // the detail indicator frame |
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881 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
| 608 | 882 // the small image |
| 883 var $birdImg = $('<img class="birdimg"/>'); | |
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884 $elem.append($birdDiv); |
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885 $birdDiv.append($birdZoom); |
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886 $birdDiv.append($birdImg); |
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887 $birdZoom.css(data.settings.birdIndicatorStyle); |
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888 data.$birdDiv = $birdDiv; |
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889 data.$birdZoom = $birdZoom; |
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890 data.$birdImg = $birdImg; |
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891 $birdImg.load(birdImgLoadedHandler(data)); |
| 608 | 892 $birdImg.attr('src', birdUrl); |
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893 if (data.settings.isBirdDivVisible) { |
| 680 | 894 $birdDiv.show(); |
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895 }; |
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896 birdZoom(data); |
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897 }; |
| 608 | 898 |
| 618 | 899 // creates HTML structure for the about view in elem |
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900 var setupAboutDiv = function (data) { |
| 640 | 901 var $elem = data.$elem; |
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902 var settings = data.settings; |
| 618 | 903 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 609 | 904 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 905 var $link = $('<a/>'); | |
| 906 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 907 var $content = $('<p/>'); | |
| 908 $elem.append($aboutDiv); | |
| 909 $aboutDiv.append($header); | |
| 910 $aboutDiv.append($link); | |
| 911 $aboutDiv.append($content); | |
| 912 $link.append($logo); | |
| 913 $logo.attr('src', settings.logoUrl); | |
| 628 | 914 $link.attr('href', settings.homeUrl); |
| 609 | 915 $content.text('Version: ' + settings.version); |
| 628 | 916 // click hides |
| 642 | 917 $aboutDiv.bind('click.digilib', function () { |
| 639 | 918 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 642 | 919 return false; |
| 920 }); | |
| 628 | 921 data.$aboutDiv = $aboutDiv; |
| 627 | 922 }; |
| 923 | |
| 628 | 924 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 925 var showDiv = function (isVisible, $div, show) { | |
| 638 | 926 if (show == null) { |
| 628 | 927 // toggle visibility |
| 928 isVisible = !isVisible; | |
| 929 } else { | |
| 930 // set visibility | |
| 931 isVisible = show; | |
| 932 } | |
| 933 if (isVisible) { | |
| 934 $div.fadeIn(); | |
| 935 } else { | |
| 936 $div.fadeOut(); | |
| 937 } | |
| 938 return isVisible; | |
| 627 | 939 }; |
| 609 | 940 |
| 690 | 941 // display more (or less) button sets |
| 942 var showButtons = function (data, more, setIdx, animated) { | |
| 943 if (more) { | |
| 944 // add set | |
| 945 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 946 var $set; | |
| 947 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
| 948 // set exists | |
| 949 $set = data.$buttonSets[setIdx]; | |
| 950 } else { | |
| 951 $set = createButtons(data, setIdx); | |
| 952 } | |
| 953 if ($set == null) return false; | |
| 954 var btnWidth = $set.width(); | |
| 955 // move remaining sets left and show new set | |
| 956 if (animated) { | |
| 957 $otherSets.animate({left : '-='+btnWidth+'px'}, 'fast', | |
| 958 function () {$set.show();}); | |
| 959 } else { | |
| 694 | 960 var oldpos = $otherSets.position(); |
| 961 if (oldpos) { | |
| 962 $otherSets.css({left : oldpos.left-btnWidth+'px'}); | |
| 963 } | |
| 690 | 964 $set.show(); |
| 965 } | |
| 966 } else { | |
| 967 // remove set | |
| 968 var $set = data.$buttonSets[setIdx]; | |
| 969 if ($set == null) return false; | |
| 970 var btnWidth = $set.width(); | |
| 971 // hide last set | |
| 972 $set.hide(); | |
| 973 // take remaining sets and move right | |
| 974 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 975 if (animated) { | |
| 976 $otherSets.animate({left : '+='+btnWidth+'px'}, 'fast'); | |
| 977 } else { | |
| 978 $otherSets.css({left : '+='+btnWidth+'px'}); | |
| 979 } | |
| 980 } | |
| 981 return true; | |
| 982 }; | |
| 983 | |
|
651
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|
984 // create Transform from area and $img |
| 668 | 985 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
|
651
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986 var picrect = geom.rectangle($img); |
|
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987 var trafo = geom.transform(); |
| 668 | 988 // move zoom area offset to center |
|
651
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|
989 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 668 | 990 // scale zoom area size to [1,1] |
|
651
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991 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 668 | 992 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 993 if (rot || hmir || vmir) { | |
| 994 // move [0.5,0.5] to center | |
| 995 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 996 if (hmir) { | |
| 997 // mirror about center | |
| 998 trafo.concat(trafo.getMirror('y')); | |
| 999 } | |
| 1000 if (vmir) { | |
| 1001 // mirror about center | |
| 1002 trafo.concat(trafo.getMirror('x')); | |
| 1003 } | |
| 1004 if (rot) { | |
| 1005 // rotate around center | |
| 1006 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
| 1007 } | |
| 1008 // move back | |
| 1009 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
|
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|
1010 } |
|
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|
1011 // scale to screen position and size |
|
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1012 trafo.concat(trafo.getScale(picrect)); |
|
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1013 trafo.concat(trafo.getTranslation(picrect)); |
|
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1014 return trafo; |
| 648 | 1015 }; |
|
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|
1016 |
|
606
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|
1017 // returns function for load event of scaler img |
| 629 | 1018 var scalerImgLoadedHandler = function (data) { |
| 1019 var $img = data.$img; | |
| 626 | 1020 return function () { |
| 620 | 1021 console.debug("img loaded! this=", this, " data=", data); |
| 1022 // create Transform from current area and picsize | |
| 668 | 1023 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
| 1024 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
| 679 | 1025 console.debug("imgTrafo=", data.imgTrafo); |
| 620 | 1026 // display marks |
| 626 | 1027 renderMarks(data); |
|
688
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|
1028 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation |
|
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1029 var $birdImg = data.$birdImg; |
| 698 | 1030 // should the birdview adapt to mirror or rotation? decision: No. :-) |
|
663
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1031 if ($birdImg) { |
|
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1032 $birdImg.triggerHandler('load'); |
|
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1033 }; |
|
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1034 }; |
|
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|
1035 }; |
|
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1036 |
|
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|
1037 // returns function for load event of bird's eye view img |
|
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1038 var birdImgLoadedHandler = function (data) { |
|
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1039 var $img = data.$birdImg; |
|
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1040 return function () { |
|
670
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|
1041 console.debug("birdimg loaded! this=", this, " data=", data); |
|
651
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1042 // create Transform from current area and picsize |
|
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1043 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
| 661 | 1044 // display red indicator around zoomarea |
|
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1045 renderbirdZoom(data); |
|
606
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1046 }; |
|
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|
1047 }; |
| 626 | 1048 |
| 1049 // place marks on the image | |
| 1050 var renderMarks = function (data) { | |
| 640 | 1051 var $elem = data.$elem; |
| 636 | 1052 var marks = data.marks; |
| 642 | 1053 // TODO: clear marks first(?) |
| 626 | 1054 for (var i = 0; i < marks.length; i++) { |
| 1055 var mark = marks[i]; | |
| 636 | 1056 if (data.zoomArea.containsPosition(mark)) { |
| 626 | 1057 var mpos = data.imgTrafo.transform(mark); |
|
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1058 console.debug("renderMarks: mpos=",mpos); |
| 626 | 1059 // create mark |
| 1060 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 1061 var $mark = $(html); | |
| 1062 $elem.append($mark); | |
| 647 | 1063 $mark.offset({left : mpos.x, top : mpos.y}); |
| 626 | 1064 } |
| 1065 } | |
| 1066 }; | |
| 648 | 1067 |
|
670
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|
1068 // show zoom area indicator on bird's eye view |
|
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1069 var renderbirdZoom = function (data) { |
|
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1070 var $birdZoom = data.$birdZoom; |
| 652 | 1071 var zoomArea = data.zoomArea; |
| 1072 var indRect = data.birdTrafo.transform(zoomArea); | |
|
663
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1073 var coords = { |
|
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1074 left : indRect.x-2, // acount for frame width |
|
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1075 top : indRect.y-2, |
|
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1076 width : indRect.width, |
|
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1077 height: indRect.height |
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|
1078 }; |
|
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1079 var normalSize = isFullArea(zoomArea); |
|
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1080 if (data.settings.interactionMode === 'fullscreen') { |
|
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1081 // no animation for fullscreen |
|
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1082 if (normalSize) return $birdZoom.hide(); |
|
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1083 $birdZoom.width(coords.width); |
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1084 $birdZoom.height(coords.height); |
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|
1085 $birdZoom.offset(coords); |
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|
1086 $birdZoom.show(); |
|
663
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|
1087 return; |
|
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|
1088 }; |
|
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|
1089 // nice animation for embedded mode :-) |
|
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1090 var makeCompleteFunction = function($birdZoom, normalSize) { |
|
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1091 return function() { |
|
671
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1092 if (normalSize) $birdZoom.hide(); |
|
665
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|
1093 }; |
|
663
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|
1094 }; |
|
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|
1095 var opts = { |
|
671
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1096 'complete' : makeCompleteFunction($birdZoom, normalSize) |
|
663
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|
1097 }; |
|
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1098 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
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|
1099 $birdZoom.animate(coords, opts); |
|
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|
1100 }; |
| 652 | 1101 |
| 640 | 1102 // zooms by the given factor |
| 636 | 1103 var zoomBy = function(data, factor) { |
| 1104 var area = data.zoomArea; | |
| 1105 var newarea = area.copy(); | |
| 1106 // scale | |
| 1107 newarea.width /= factor; | |
| 1108 newarea.height /= factor; | |
| 1109 // and recenter | |
| 1110 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 1111 newarea.y -= 0.5 * (newarea.height - area.height); | |
| 1112 newarea = MAX_ZOOMAREA.fit(newarea); | |
| 1113 data.zoomArea = newarea; | |
|
637
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|
1114 redisplay(data); |
| 636 | 1115 }; |
| 1116 | |
| 640 | 1117 // add a mark where clicked |
| 1118 var setMark = function (data) { | |
| 642 | 1119 var $scaler = data.$scaler; |
| 640 | 1120 // start event capturing |
| 642 | 1121 $scaler.one('click.digilib', function (evt) { |
| 640 | 1122 // event handler adding a new mark |
|
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|
1123 var mpos = geom.position(evt); |
| 640 | 1124 var pos = data.imgTrafo.invtransform(mpos); |
| 1125 data.marks.push(pos); | |
| 1126 redisplay(data); | |
| 642 | 1127 return false; // do we even get here? |
| 640 | 1128 }); |
| 1129 }; | |
| 661 | 1130 |
| 647 | 1131 var zoomArea = function(data) { |
| 1132 $elem = data.$elem; | |
| 1133 $scaler = data.$scaler; | |
| 1134 var pt1, pt2; | |
| 1135 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 1136 $elem.append($zoomDiv); | |
| 661 | 1137 $zoomDiv.css(data.settings.zoomrectStyle); |
| 647 | 1138 var picRect = geom.rectangle($scaler); |
| 1139 // FIX ME: is there a way to query the border width from CSS info? | |
| 1140 // rect.x -= 2; // account for overlay borders | |
| 1141 // rect.y -= 2; | |
| 1142 | |
| 1143 var zoomStart = function (evt) { | |
| 1144 pt1 = geom.position(evt); | |
| 1145 // setup and show zoom div | |
| 1146 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
| 1147 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
| 661 | 1148 $zoomDiv.width(0).height(0); |
| 647 | 1149 $zoomDiv.show(); |
| 1150 // register events | |
| 1151 $elem.bind("mousemove.digilib", zoomMove); | |
| 1152 $elem.bind("mouseup.digilib", zoomEnd); | |
| 1153 return false; | |
| 1154 }; | |
| 661 | 1155 |
| 647 | 1156 // mouseup handler: end moving |
| 1157 var zoomEnd = function (evt) { | |
| 1158 pt2 = geom.position(evt); | |
| 1159 // assume a click and continue if the area is too small | |
| 1160 var clickRect = geom.rectangle(pt1, pt2); | |
| 1161 if (clickRect.getArea() <= 5) { | |
| 1162 return false; | |
| 1163 } | |
| 1164 // hide zoom div | |
| 1165 $zoomDiv.remove(); | |
| 1166 // unregister events | |
| 1167 $elem.unbind("mousemove.digilib", zoomMove); | |
| 1168 $elem.unbind("mouseup.digilib", zoomEnd); | |
| 1169 // clip and transform | |
| 1170 clickRect.clipTo(picRect); | |
| 1171 var area = data.imgTrafo.invtransform(clickRect); | |
| 1172 data.zoomArea = area; | |
| 1173 // zoomed is always fit | |
| 1174 data.settings.ws = 1; | |
| 1175 redisplay(data); | |
| 1176 return false; | |
| 1177 }; | |
| 661 | 1178 |
| 647 | 1179 // mouse move handler |
| 1180 var zoomMove = function (evt) { | |
| 1181 pt2 = geom.position(evt); | |
| 1182 var rect = geom.rectangle(pt1, pt2); | |
| 1183 rect.clipTo(picRect); | |
| 1184 // update zoom div | |
|
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|
1185 rect.adjustDiv($zoomDiv); |
| 647 | 1186 return false; |
| 1187 }; | |
| 661 | 1188 |
| 647 | 1189 // bind start zoom handler |
| 1190 $scaler.one('mousedown.digilib', zoomStart); | |
| 1191 }; | |
| 640 | 1192 |
|
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1193 var birdZoom = function(data) { |
|
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|
1194 var $birdImg = data.$birdImg; |
|
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|
1195 var $birdZoom = data.$birdZoom; |
|
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|
1196 var startPos, newRect, birdImgRect, birdZoomRect; |
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|
1197 |
|
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|
1198 var birdZoomMove = function(evt) { |
|
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|
1199 // mousemove handler: drag |
|
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|
1200 var pos = geom.position(evt); |
|
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|
1201 var dx = pos.x - startPos.x; |
|
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|
1202 var dy = pos.y - startPos.y; |
|
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|
1203 // move birdZoom div, keeping size |
|
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|
1204 newRect = geom.rectangle( |
|
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1205 birdZoomRect.x + dx, |
|
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|
1206 birdZoomRect.y + dy, |
|
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|
1207 birdZoomRect.width, |
|
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|
1208 birdZoomRect.height |
|
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|
1209 ); |
|
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|
1210 // stay within birdimage |
|
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1211 newRect.stayInside(birdImgRect); |
|
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|
1212 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
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|
1213 // $birdZoom.show(); |
|
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|
1214 return false; |
|
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|
1215 }; |
|
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|
1216 |
|
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|
1217 var birdZoomEndDrag = function(evt) { |
|
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1218 // mouseup handler: reload page |
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1219 var settings = data.settings; |
| 673 | 1220 $(document).unbind("mousemove.digilib", birdZoomMove); |
| 1221 $(document).unbind("mouseup.digilib", birdZoomEndDrag); | |
| 1222 $birdZoom.unbind("mousemove.digilib", birdZoomMove); | |
| 1223 $birdZoom.unbind("mouseup.digilib", birdZoomEndDrag); | |
|
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1224 if (newRect == null) { // no movement happened |
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1225 startPos = birdZoomRect.getCenter(); |
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1226 birdZoomMove(evt); // set center to click position |
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1227 }; |
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1228 if (data.zoomArea) { |
| 672 | 1229 // should always be true |
| 1230 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
| 1231 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
| 1232 data.zoomArea.x = x; | |
| 1233 data.zoomArea.y = y; | |
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671
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1234 }; |
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1235 settings.ws = 1; // zoomed is always fit |
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1236 redisplay(data); |
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1237 return false; |
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1238 }; |
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1239 |
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1240 var birdZoomStartDrag = function(evt) { |
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1241 // mousedown handler: start dragging bird zoom to a new position |
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1242 startPos = geom.position(evt); |
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1243 birdImgRect = geom.rectangle($birdImg); |
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1244 birdZoomRect = geom.rectangle($birdZoom); |
| 673 | 1245 $(document).bind("mousemove.digilib", birdZoomMove); |
| 1246 $(document).bind("mouseup.digilib", birdZoomEndDrag); | |
| 1247 $birdZoom.bind("mousemove.digilib", birdZoomMove); | |
| 1248 $birdZoom.bind("mouseup.digilib", birdZoomEndDrag); | |
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1249 return false; |
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1250 }; |
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1251 |
| 674 | 1252 $birdImg.bind("mousedown.digilib", birdZoomStartDrag); |
| 1253 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag); | |
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1254 }; |
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1255 |
| 698 | 1256 var setupZoomDrag = function(data) { |
| 1257 // setup handlers for dragging the zoomed image | |
| 1258 var pt1, pt2; | |
| 1259 var dx = 0; | |
| 1260 var dy = 0; | |
| 1261 var $elem = data.$elem; | |
| 1262 var $scaler = data.$scaler; | |
| 1263 var $img = data.$img; | |
| 700 | 1264 var $bg = $elem.has('div.bgDrag'); |
| 1265 if ($bg.length === 0) { | |
| 1266 $bg = $('<div class="bgDrag" style="display:none; position:absolute"/>'); | |
| 1267 $scaler.before($bg); // set as background | |
| 1268 }; | |
| 698 | 1269 |
| 1270 var dragStart = function (evt) { | |
| 1271 // drag the image and load a new detail on mouse up | |
| 1272 // useless if not zoomed | |
| 1273 if (isFullArea(data.zoomArea)) return false; | |
| 1274 if(evt.preventDefault) evt.preventDefault(); // no Firefox drag and drop (NEEDED?) | |
| 1275 pt1 = geom.position(evt); | |
| 1276 $imgRect = geom.rectangle($img); | |
| 1277 $imgRect.adjustDiv($bg); // set background size | |
| 1278 // hide the scaler image, show it as background of div instead | |
| 1279 $bg.css({ | |
| 1280 'background-image' : 'url(' + $img.attr('src') + ')', | |
| 1281 'background-repeat' : 'no-repeat', | |
| 699 | 1282 'background-position' : 'top left', |
| 698 | 1283 'cursor' : 'move' |
| 1284 }); | |
| 1285 $img.hide(); | |
| 1286 $bg.show(); | |
| 1287 $(document).bind("mousemove.digilib", dragMove); | |
| 1288 $(document).bind("mouseup.digilib", dragEnd); | |
| 1289 window.focus(); | |
| 1290 }; | |
| 1291 | |
| 1292 var dragMove = function (evt) { | |
| 1293 // mousemove handler: drag | |
| 1294 var pos = geom.position(evt); | |
| 1295 if(evt.preventDefault) evt.preventDefault(); // no Firefox drag and drop (NEEDED?) | |
| 1296 dx = pos.x - pt1.x; | |
| 1297 dy = pos.y - pt1.y; | |
| 1298 // move the background image to the new position | |
| 1299 $bg.css({ | |
| 1300 'background-position' : dx + "px " + dy + "px" | |
| 1301 }); | |
| 1302 return false; | |
| 1303 }; | |
| 1304 | |
| 1305 var dragEnd = function (evt) { | |
| 1306 // mouseup handler: reload digilib | |
| 1307 $bg.css({ | |
| 1308 'cursor' : 'default' | |
| 1309 }); | |
| 1310 $(document).unbind("mousemove.digilib", dragMove); | |
| 1311 $(document).unbind("mouseup.digilib", dragEnd); | |
| 1312 // calculate relative offset | |
| 1313 if (dx == 0 && dy == 0) | |
| 1314 return false // no movement | |
| 1315 // reload with scaler image showing the new ausschnitt | |
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1316 // digilib.moveBy(x, y); |
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1317 var pos = geom.position(-dx, -dy); |
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1318 var newPos = data.imgTrafo.invtransform(pos); |
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1319 var newArea = data.zoomArea.setPt1(newPos); |
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1320 data.zoomArea = MAX_ZOOMAREA.fit(newArea); |
| 699 | 1321 $bg.hide(); |
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1322 redisplay(data); |
| 698 | 1323 return false; |
| 1324 }; | |
| 1325 | |
| 1326 $scaler.bind("mousedown.digilib", dragStart); | |
| 1327 }; | |
| 1328 | |
| 696 | 1329 // get image quality as a number (0..2) |
| 1330 var getQuality = function (data) { | |
| 1331 var flags = data.scalerFlags; | |
| 1332 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
| 1333 return parseInt(q[1], 10); | |
| 699 | 1334 }; |
| 696 | 1335 |
| 1336 // set image quality as a number (0..2) | |
| 1337 var setQuality = function (data, qual) { | |
| 1338 var flags = data.scalerFlags; | |
| 1339 // clear flags | |
| 1340 for (var i = 0; i < 3; ++i) { | |
| 1341 delete flags['q'+i]; | |
| 1342 } | |
| 1343 flags['q'+qual] = 'q'+qual; | |
| 699 | 1344 }; |
| 696 | 1345 |
| 643 | 1346 // sets a key to a value (relative values with +/- if relative=true) |
| 1347 var setNumValue = function(settings, key, value) { | |
| 1348 if (isNumber(value)) return settings[key] = value; | |
| 1349 var sign = value.substring(0,1); | |
| 1350 if (sign === '+' || sign === '-') { | |
| 1351 if (settings[key] == null) { | |
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1352 // this isn't perfect but still... |
| 643 | 1353 settings[key] = 0; |
| 1354 } | |
| 1355 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
| 1356 } else { | |
| 1357 settings[key] = value; | |
| 1358 } | |
| 1359 return settings[key]; | |
| 1360 }; | |
| 648 | 1361 |
| 1362 // auxiliary function (from old dllib.js) | |
| 652 | 1363 isFullArea = function(area) { |
| 1364 return (area.width === 1.0) && (area.height === 1.0); | |
| 648 | 1365 }; |
| 1366 | |
| 634 | 1367 // auxiliary function (from Douglas Crockford, A.10) |
| 1368 var isNumber = function isNumber(value) { | |
| 1369 return typeof value === 'number' && isFinite(value); | |
| 1370 }; | |
| 648 | 1371 |
| 624 | 1372 // auxiliary function to crop senseless precision |
| 1373 var cropFloat = function (x) { | |
| 630 | 1374 return parseInt(10000 * x, 10) / 10000; |
| 624 | 1375 }; |
| 648 | 1376 |
| 685 | 1377 // fallback for console.log calls |
| 1378 if (customConsole) { | |
| 1379 var logFunction = function(type) { | |
| 1380 return function(){ | |
| 1381 var $debug = $('#debug'); // debug div | |
| 1382 if (!$debug) return; | |
| 1383 var args = Array.prototype.slice.call(arguments); | |
| 1384 var argtext = args.join(' '); | |
| 1385 var $logDiv = $('<div/>'); | |
| 1386 $logDiv.addClass(type); | |
| 1387 $logDiv.text(argtext); | |
| 1388 $debug.append($logDiv); | |
| 1389 }; | |
| 1390 }; | |
| 1391 console.log = logFunction('_log'); | |
| 1392 console.debug = logFunction('_debug'); | |
| 1393 console.error = logFunction('_error'); | |
| 1394 }; | |
| 1395 | |
| 598 | 1396 // hook plugin into jquery |
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1397 $.fn.digilib = function(action) { |
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1398 if (actions[action]) { |
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1399 // call action on this with the remaining arguments (inserting data as first argument) |
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1400 var $elem = $(this); |
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1401 var data = $elem.data('digilib'); |
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1402 var args = Array.prototype.slice.call(arguments, 1); |
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1403 args.unshift(data); |
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1404 return actions[action].apply(this, args); |
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1405 } else if (typeof(action) === 'object' || !action) { |
| 627 | 1406 // call init on this |
|
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1407 return actions.init.apply(this, arguments); |
| 598 | 1408 } else { |
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1409 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
| 598 | 1410 } |
| 1411 }; | |
| 685 | 1412 |
| 597 | 1413 })(jQuery); |