Mercurial > hg > digilib-old
annotate client/digitallibrary/jquery/jquery.digilib.js @ 691:fe2bb8f926be jquery
merge
with f5f2b262be07f41fa6c8d2f60332b198eaa2d603
| author | robcast |
|---|---|
| date | Wed, 26 Jan 2011 23:43:39 +0100 |
| parents | 7c8d5bfc5243 f5f2b262be07 |
| children | ab8054bba8d3 |
| rev | line source |
|---|---|
| 604 | 1 /* |
| 2 * digilib jQuery plugin | |
| 3 * | |
| 4 */ | |
| 655 | 5 |
| 636 | 6 // fallback for console.log calls |
| 7 if (typeof(console) === 'undefined') { | |
| 8 var console = { | |
| 686 | 9 log : function(){ |
| 10 var $debug = $('#debug'); | |
| 11 if (!$debug) return; | |
| 12 var args = Array.prototype.slice.call(arguments); | |
| 13 var argstr = args.join(' '); | |
| 14 $debug.append('<div class="_log">' + argstr + '</div>'); | |
| 15 }, | |
| 16 debug : function(){ | |
| 17 // debug for MSIE etc | |
| 18 var $debug = $('#debug'); | |
| 19 if (!$debug) return; | |
| 20 var args = Array.prototype.slice.call(arguments); | |
| 21 var argstr = args.join(' '); | |
| 22 $debug.append('<div class="_debug">' + argstr + '</div>'); | |
| 23 }, | |
| 24 error : function(){ | |
| 25 var $debug = $('#debug'); | |
| 26 if (!$debug) return; | |
| 27 var args = Array.prototype.slice.call(arguments); | |
| 28 var argstr = args.join(' '); | |
| 29 $debug.append('<div class="_error">' + argstr + '</div>'); | |
| 30 } | |
| 636 | 31 }; |
| 32 } | |
| 604 | 33 |
| 34 (function($) { | |
|
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35 var buttons = { |
| 610 | 36 reference : { |
| 689 | 37 onclick : "reference", |
| 610 | 38 tooltip : "get a reference URL", |
| 39 img : "reference.png" | |
| 40 }, | |
| 41 zoomin : { | |
| 643 | 42 onclick : ["zoomBy", 1.4], |
| 610 | 43 tooltip : "zoom in", |
| 44 img : "zoom-in.png" | |
| 45 }, | |
| 46 zoomout : { | |
| 643 | 47 onclick : ["zoomBy", 0.7], |
| 610 | 48 tooltip : "zoom out", |
| 49 img : "zoom-out.png" | |
| 50 }, | |
| 51 zoomarea : { | |
| 654 | 52 onclick : "zoomArea", |
| 610 | 53 tooltip : "zoom area", |
| 54 img : "zoom-area.png" | |
| 55 }, | |
| 56 zoomfull : { | |
| 650 | 57 onclick : "zoomFull", |
| 610 | 58 tooltip : "view the whole image", |
| 59 img : "zoom-full.png" | |
| 60 }, | |
| 61 pagewidth : { | |
| 650 | 62 onclick : ["zoomFull", "width"], |
| 610 | 63 tooltip : "page width", |
| 64 img : "pagewidth.png" | |
| 65 }, | |
| 66 back : { | |
| 623 | 67 onclick : ["gotoPage", "-1"], |
| 610 | 68 tooltip : "goto previous image", |
| 69 img : "back.png" | |
| 70 }, | |
| 71 fwd : { | |
| 623 | 72 onclick : ["gotoPage", "+1"], |
| 610 | 73 tooltip : "goto next image", |
| 74 img : "fwd.png" | |
| 75 }, | |
| 76 page : { | |
| 77 onclick : "javascript:gotoPageWin()", | |
| 78 tooltip : "specify image", | |
| 79 img : "page.png" | |
| 80 }, | |
| 81 bird : { | |
| 635 | 82 onclick : "showBirdDiv", |
| 610 | 83 tooltip : "show bird's eye view", |
| 84 img : "birds-eye.png" | |
| 85 }, | |
| 86 help : { | |
| 635 | 87 onclick : "showAboutDiv", |
| 610 | 88 tooltip : "about Digilib", |
| 89 img : "help.png" | |
| 90 }, | |
| 91 reset : { | |
| 688 | 92 onclick : "reset", |
| 610 | 93 tooltip : "reset image", |
| 94 img : "reset.png" | |
| 95 }, | |
| 96 mark : { | |
| 647 | 97 onclick : "setMark", |
| 610 | 98 tooltip : "set a mark", |
| 99 img : "mark.png" | |
| 100 }, | |
| 101 delmark : { | |
| 650 | 102 onclick : "removeMark", |
| 610 | 103 tooltip : "delete the last mark", |
| 104 img : "delmark.png" | |
| 105 }, | |
| 106 hmir : { | |
| 661 | 107 onclick : ["mirror", "h"], |
| 610 | 108 tooltip : "mirror horizontally", |
| 109 img : "mirror-horizontal.png" | |
| 110 }, | |
| 111 vmir : { | |
| 661 | 112 onclick : ["mirror", "v"], |
| 610 | 113 tooltip : "mirror vertically", |
| 114 img : "mirror-vertical.png" | |
| 115 }, | |
| 116 rot : { | |
| 663 | 117 onclick : "rotate", |
| 610 | 118 tooltip : "rotate image", |
| 119 img : "rotate.png" | |
| 120 }, | |
| 121 brgt : { | |
| 663 | 122 onclick : "brightness", |
| 610 | 123 tooltip : "set brightness", |
| 124 img : "brightness.png" | |
| 125 }, | |
| 126 cont : { | |
| 663 | 127 onclick : "contrast", |
| 610 | 128 tooltip : "set contrast", |
| 129 img : "contrast.png" | |
| 130 }, | |
| 131 rgb : { | |
| 132 onclick : "javascript:setParamWin('rgb', '...')", | |
| 133 tooltip : "set rgb values", | |
| 134 img : "rgb.png" | |
| 135 }, | |
| 136 quality : { | |
| 137 onclick : "javascript:setQualityWin('Quality (0..2)')", | |
| 138 tooltip : "set image quality", | |
| 139 img : "quality.png" | |
| 140 }, | |
| 141 size : { | |
| 142 onclick : "javascript:toggleSizeMenu()", | |
| 143 tooltip : "set page size", | |
| 144 img : "size.png" | |
| 145 }, | |
| 146 calibrationx : { | |
| 147 onclick : "javascript:calibrate('x')", | |
| 148 tooltip : "calibrate screen x-ratio", | |
| 149 img : "calibration-x.png" | |
| 150 }, | |
| 151 scale : { | |
| 152 onclick : "javascript:toggleScaleMenu()", | |
| 153 tooltip : "change image scale", | |
| 154 img : "original-size.png" | |
| 155 }, | |
| 690 | 156 moreoptions : { |
| 157 onclick : ["morebuttons", "+1"], | |
| 158 tooltip : "more options", | |
| 159 img : "options.png" | |
| 160 }, | |
| 161 lessoptions : { | |
| 162 onclick : ["morebuttons", "-1"], | |
| 163 tooltip : "less options", | |
| 610 | 164 img : "options.png" |
| 165 }, | |
| 166 SEP : { | |
| 167 img : "sep.png" | |
| 168 } | |
| 169 }; | |
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170 |
| 605 | 171 var defaults = { |
| 616 | 172 // version of this script |
| 635 | 173 'version' : 'jquery.digilib.js 0.9', |
| 616 | 174 // logo url |
| 175 'logoUrl' : '../img/digilib-logo-text1.png', | |
| 635 | 176 // homepage url (behind logo) |
| 177 'homeUrl' : 'http://digilib.berlios.de', | |
| 610 | 178 // base URL to Scaler servlet |
| 652 | 179 'scalerBaseUrl' : null, |
| 610 | 180 // list of Scaler parameters |
| 627 | 181 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
| 182 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
| 183 // Scaler parameter defaults | |
| 643 | 184 'pn' : 1, |
| 627 | 185 'ww' : 1.0, |
| 186 'wh' : 1.0, | |
| 187 'wx' : 0.0, | |
| 188 'wy' : 0.0, | |
| 189 'ws' : 1.0, | |
| 643 | 190 'mo' : '', |
| 191 'rot' : 0, | |
| 192 'cont' : 0, | |
| 193 'brgt' : 0, | |
| 194 'rgbm' : '0/0/0', | |
| 195 'rgba' : '0/0/0', | |
| 196 'ddpi' : null, | |
| 197 'ddpix' : null, | |
| 198 'ddpiy' : null, | |
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199 // list of digilib parameters |
| 650 | 200 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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201 // digilib parameter defaults |
| 643 | 202 'mk' : '', |
| 650 | 203 'clop' : '', |
| 643 | 204 // mode of operation: |
| 205 // fullscreen = take parameters from page URL, keep state in page URL | |
| 206 // embedded = take parameters from Javascript options, keep state inside object | |
| 610 | 207 'interactionMode' : 'fullscreen', |
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208 // buttons |
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209 'buttons' : buttons, |
| 668 | 210 // defaults for digilib buttons |
| 665 | 211 'buttonSettings' : { |
| 212 'fullscreen' : { | |
| 668 | 213 // path to button images (must end with a slash) |
| 665 | 214 'imagePath' : 'img/fullscreen/', |
| 690 | 215 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","moreoptions"], |
| 216 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","lessoptions"], | |
| 682 | 217 'buttonSets' : ['standardSet', 'specialSet'] |
| 665 | 218 }, |
| 219 'embedded' : { | |
| 220 'imagePath' : 'img/embedded/16/', | |
| 688 | 221 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","scale","bird","help","reset","options"], |
| 222 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","options"], | |
| 682 | 223 'buttonSets' : ['standardSet', 'specialSet'] |
| 665 | 224 } |
| 225 }, | |
| 652 | 226 // button groups |
| 616 | 227 // is birdView shown? |
| 228 'isBirdDivVisible' : false, | |
| 668 | 229 // dimensions of bird's eye div |
| 674 | 230 'birdDivWidth' : 200, |
| 231 'birdDivHeight' : 200, | |
| 668 | 232 // style of the zoom area indicator in the bird's eye div |
| 659 | 233 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
| 668 | 234 // style of zoom area "rubber band" |
| 235 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
| 616 | 236 // is the "about" window shown? |
| 237 'isAboutDivVisible' : false | |
| 238 | |
| 610 | 239 }; |
| 655 | 240 |
| 608 | 241 // affine geometry classes |
| 242 var geom = dlGeometry(); | |
| 655 | 243 |
| 643 | 244 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
| 655 | 245 |
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246 var actions = { |
| 668 | 247 // init: digilib initialization |
| 248 init : function(options) { | |
| 249 // settings for this digilib instance are merged from defaults and options | |
| 250 var settings = $.extend({}, defaults, options); | |
| 251 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
| 252 var queryParams = {}; | |
| 253 if (isFullscreen) { | |
| 254 queryParams = parseQueryParams(); | |
| 255 // check scalerBaseUrl | |
| 256 if (settings.scalerBaseUrl == null) { | |
| 257 // try the host this came from | |
| 258 var h = window.location.host; | |
| 259 if (window.location.host) { | |
| 260 var url = window.location.href; | |
| 261 // assume the page lives in [webapp]/jquery/ | |
| 262 var pos = url.indexOf('jquery/'); | |
| 263 if (pos > 0) { | |
| 264 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
| 652 | 265 } |
| 266 } | |
| 636 | 267 } |
| 668 | 268 } |
| 269 return this.each(function() { | |
| 270 var $elem = $(this); | |
| 271 var data = $elem.data('digilib'); | |
| 688 | 272 var params, elemSettings; |
| 668 | 273 // if the plugin hasn't been initialized yet |
| 274 if (!data) { | |
| 275 // merge query parameters | |
| 276 if (isFullscreen) { | |
| 688 | 277 params = queryParams; |
| 668 | 278 } else { |
| 688 | 279 params = parseImgParams($elem); |
| 280 }; | |
| 668 | 281 // store $(this) element in the settings |
| 688 | 282 elemSettings = $.extend({}, settings, params); |
| 668 | 283 data = { |
| 284 $elem : $elem, | |
| 285 settings : elemSettings, | |
| 688 | 286 queryParams : params |
| 668 | 287 }; |
| 288 // store in data element | |
| 289 $elem.data('digilib', data); | |
| 290 } | |
| 291 unpackParams(data); | |
| 682 | 292 // create HTML structure for scaler |
| 668 | 293 setupScalerDiv(data); |
| 682 | 294 // HTML for buttons (default is first button set) |
| 295 setupButtons(data, 0); | |
| 668 | 296 // bird's eye view creation |
| 297 if (elemSettings.isBirdDivVisible) { | |
| 638 | 298 setupBirdDiv(data); |
| 299 } | |
| 668 | 300 // about window creation - TODO: could be deferred? restrict to only one item? |
| 301 setupAboutDiv(data); | |
| 302 }); | |
| 303 }, | |
| 304 | |
| 305 // destroy: clean up digilib | |
| 306 destroy : function(data) { | |
| 307 return this.each(function(){ | |
| 308 var $elem = $(this); | |
| 309 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
| 310 data.digilib.remove(); | |
| 311 $elem.removeData('digilib'); | |
| 312 }); | |
| 313 }, | |
| 314 | |
| 315 // show or hide the 'about' window | |
| 316 showAboutDiv : function(data, show) { | |
| 317 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
| 318 }, | |
| 655 | 319 |
| 668 | 320 // event handler: toggles the visibility of the bird's eye window |
| 321 showBirdDiv : function (data, show) { | |
| 322 if (data.$birdDiv == null) { | |
| 323 // no bird div -> create | |
| 324 setupBirdDiv(data); | |
| 325 } | |
| 326 // TODO: keep bird view visible after reload (parameter, cookie?) | |
| 327 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
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328 data.$birdImg.triggerHandler('load'); |
| 668 | 329 }, |
| 330 | |
| 331 // goto given page nr (+/-: relative) | |
| 332 gotoPage : function (data, pageNr) { | |
| 333 var settings = data.settings; | |
| 334 var oldpn = settings.pn; | |
| 335 var pn = setNumValue(settings, "pn", pageNr); | |
| 336 if (pn == null) return false; // nothing happened | |
| 337 if (pn < 1) { | |
| 338 alert("no such page (page number too low)"); | |
| 339 settings.pn = oldpn; | |
| 340 return false; | |
| 341 } | |
| 342 if (settings.pt) { | |
| 343 if (pn > settings.pt) { | |
| 344 alert("no such page (page number too high)"); | |
| 623 | 345 settings.pn = oldpn; |
| 346 return false; | |
| 634 | 347 } |
| 668 | 348 } |
| 349 // reset mk and others(?) | |
| 350 data.marks = []; | |
| 351 data.zoomArea = MAX_ZOOMAREA; | |
| 352 // then reload | |
| 353 redisplay(data); | |
| 354 }, | |
| 654 | 355 |
| 668 | 356 // zoom by a given factor |
| 357 zoomBy : function (data, factor) { | |
| 358 zoomBy(data, factor); | |
| 359 }, | |
| 647 | 360 |
| 668 | 361 // zoom interactively |
| 362 zoomArea : function (data) { | |
| 363 zoomArea(data); | |
| 364 }, | |
| 650 | 365 |
| 668 | 366 // zoom out to full page |
| 367 zoomFull : function (data, mode) { | |
| 368 data.zoomArea = MAX_ZOOMAREA; | |
| 369 if (mode === 'width') { | |
| 370 data.dlOpts.fitwidth = 1; | |
| 371 delete data.dlOpts.fitheight; | |
| 372 } else if (mode === 'height') { | |
| 373 data.dlOpts.fitheight = 1; | |
| 374 delete data.dlOpts.fitwidth; | |
| 375 } else { | |
| 376 delete data.dlOpts.fitwidth; | |
| 377 delete data.dlOpts.fitheight; | |
| 378 } | |
| 379 redisplay(data); | |
| 380 }, | |
| 381 | |
| 382 // set a mark by clicking (or giving a position) | |
| 383 setMark : function (data, mpos) { | |
| 384 if (mpos == null) { | |
| 385 // interactive | |
| 386 setMark(data); | |
| 387 } else { | |
| 388 // use position | |
| 389 data.marks.push(pos); | |
| 663 | 390 redisplay(data); |
| 604 | 391 } |
| 668 | 392 }, |
| 393 | |
| 394 // remove the last mark | |
| 395 removeMark : function (data) { | |
| 396 data.marks.pop(); | |
| 397 redisplay(data); | |
| 398 }, | |
| 399 | |
| 400 // mirror the image | |
| 401 mirror : function (data, mode) { | |
| 402 var flags = data.scalerFlags; | |
| 403 if (mode === 'h') { | |
| 404 if (flags.hmir) { | |
| 405 delete flags.hmir; | |
| 406 } else { | |
| 407 flags.hmir = 1; | |
| 408 } | |
| 409 } else { | |
| 410 if (flags.vmir) { | |
| 411 delete flags.vmir; | |
| 412 } else { | |
| 413 flags.vmir = 1; | |
| 414 } | |
| 415 } | |
| 416 redisplay(data); | |
| 417 }, | |
| 650 | 418 |
| 668 | 419 // rotate the image |
| 420 rotate : function (data, angle) { | |
| 421 var rot = data.settings.rot; | |
| 422 if (angle == null) { | |
| 423 angle = window.prompt("Rotation angle:", rot); | |
| 424 } | |
| 425 data.settings.rot = angle; | |
| 426 redisplay(data); | |
| 427 }, | |
| 428 | |
| 429 // change brightness | |
| 430 brightness : function (data, factor) { | |
| 431 var brgt = data.settings.brgt; | |
| 432 if (factor == null) { | |
| 433 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 434 } | |
| 435 data.settings.brgt = factor; | |
| 436 redisplay(data); | |
| 437 }, | |
| 438 | |
| 439 // change contrast | |
| 440 contrast : function (data, factor) { | |
| 441 var cont = data.settings.cont; | |
| 442 if (factor == null) { | |
| 443 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 444 } | |
| 445 data.settings.cont = factor; | |
| 446 redisplay(data); | |
| 688 | 447 }, |
| 690 | 448 |
| 449 // display more (or less) button sets | |
| 450 morebuttons : function (data, more) { | |
| 451 if (more === '-1') { | |
| 452 // remove set | |
| 453 var setIdx = data.visibleButtonSets - 1; | |
| 454 var $lastSet = data.$buttonSets[setIdx]; | |
| 455 if ($lastSet == null) return; | |
| 456 var btnWidth = $lastSet.width(); | |
| 457 // hide last set | |
| 458 $lastSet.hide(); | |
| 459 // take remaining sets and move right | |
| 460 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 461 $otherSets.animate({left : '+='+btnWidth+'px'}); | |
| 462 data.visibleButtonSets -= 1; | |
| 463 } else { | |
| 464 // add set | |
| 465 var $oldSets = data.$elem.find('div.buttons:visible'); | |
| 466 var setIdx = data.visibleButtonSets; | |
| 467 var $newSet; | |
| 468 if (data.$buttonSets[setIdx]) { | |
| 469 // set exists | |
| 470 $newSet = data.$buttonSets[setIdx]; | |
| 471 } else { | |
| 472 $newSet = setupButtons(data, setIdx); | |
| 473 } | |
| 474 if ($newSet == null) return; | |
| 475 var btnWidth = $newSet.width(); | |
| 476 // move remaining sets left and show new set | |
| 477 $oldSets.animate({left : '-='+btnWidth+'px'}, | |
| 478 function () {$newSet.show();}); | |
| 479 data.visibleButtonSets += 1; | |
| 480 } | |
| 691 | 481 }, |
| 688 | 482 |
| 483 reset : function (data) { | |
| 484 var settings = data.settings; | |
| 485 var paramNames = settings.digilibParamNames; | |
| 486 var params = data.queryParams; | |
| 487 resetData(data); | |
| 488 // delete all digilib parameters | |
| 489 for (var i = 0; i < paramNames.length; i++) { | |
| 490 var paramName = paramNames[i]; | |
| 491 delete settings[paramName]; | |
| 492 }; | |
| 493 // fullscreen: restore only fn/pn parameters | |
| 494 if (settings.interactionMode === 'fullscreen') { | |
| 495 settings['fn'] = params.fn; | |
| 496 settings['pn'] = params.pn; | |
| 497 // embedded: restore original parameters | |
| 498 } else { | |
| 499 $.extend(settings, params); | |
| 500 }; | |
| 501 redisplay(data); | |
| 689 | 502 }, |
| 503 | |
| 504 reference : function (data) { | |
| 505 var settings = data.settings; | |
| 506 var url; | |
| 507 if (settings.interactionMode === 'fullscreen') { | |
| 508 url = getDigilibUrl(data); | |
| 509 } else { | |
| 510 url = getScalerUrl(data); | |
| 511 }; | |
| 512 window.prompt("URL reference to the current view", url); | |
| 668 | 513 } |
| 605 | 514 }; |
| 604 | 515 |
| 608 | 516 // returns parameters from page url |
| 607 | 517 var parseQueryParams = function() { |
| 636 | 518 return parseQueryString(window.location.search.slice(1)); |
| 519 }; | |
| 655 | 520 |
| 636 | 521 // returns parameters from embedded img-element |
| 607 | 522 var parseImgParams = function($elem) { |
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523 var src = $elem.find('img').first().attr('src'); |
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524 if (!src) { |
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525 return null; |
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526 } |
| 607 | 527 var pos = src.indexOf('?'); |
| 528 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 529 var scalerUrl = src.substring(0, pos); | |
| 627 | 530 var params = parseQueryString(query); |
| 531 params.scalerBaseUrl = scalerUrl; | |
| 532 return params; | |
| 636 | 533 }; |
| 607 | 534 |
| 608 | 535 // parses query parameter string into parameter object |
| 607 | 536 var parseQueryString = function(query) { |
| 537 var pairs = query.split("&"); | |
| 627 | 538 var params = {}; |
| 636 | 539 //var keys = []; |
| 607 | 540 for (var i = 0; i < pairs.length; i++) { |
| 541 var pair = pairs[i].split("="); | |
| 542 if (pair.length === 2) { | |
| 627 | 543 params[pair[0]] = pair[1]; |
| 636 | 544 //keys.push(pair[0]); |
| 634 | 545 } |
| 636 | 546 } |
| 627 | 547 return params; |
| 636 | 548 }; |
| 668 | 549 |
| 643 | 550 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 551 var getParamString = function (settings, keys, defaults) { | |
| 615 | 552 var paramString = ''; |
| 650 | 553 var nx = false; |
| 615 | 554 for (i = 0; i < keys.length; ++i) { |
| 555 var key = keys[i]; | |
| 663 | 556 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 615 | 557 // first param gets no '&' |
| 650 | 558 if (nx) { |
| 559 paramString += '&'; | |
| 560 } else { | |
| 561 nx = true; | |
| 562 } | |
| 615 | 563 // add parm=val |
| 564 paramString += key + '=' + settings[key]; | |
| 643 | 565 } |
| 615 | 566 } |
| 567 return paramString; | |
| 631 | 568 }; |
| 569 | |
| 636 | 570 // returns URL and query string for Scaler |
| 571 var getScalerUrl = function (data) { | |
| 653 | 572 var settings = data.settings; |
| 652 | 573 if (settings.scalerBaseUrl == null) { |
| 574 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
| 575 } | |
| 665 | 576 packParams(data); |
| 636 | 577 var keys = settings.scalerParamNames; |
| 643 | 578 var queryString = getParamString(settings, keys, defaults); |
| 636 | 579 var url = settings.scalerBaseUrl + '?' + queryString; |
| 580 return url; | |
| 581 }; | |
| 582 | |
| 583 // returns URL and query string for current digilib | |
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584 var getDigilibUrl = function (data) { |
| 643 | 585 packParams(data); |
| 636 | 586 var settings = data.settings; |
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587 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 636 | 588 var url = window.location.toString(); |
| 589 var pos = url.indexOf('?'); | |
| 590 var baseUrl = url.substring(0, pos); | |
| 591 var newurl = baseUrl + '?' + queryString; | |
| 592 return newurl; | |
| 593 }; | |
| 594 | |
| 655 | 595 // processes some parameters into objects and stuff |
| 631 | 596 var unpackParams = function (data) { |
| 597 var settings = data.settings; | |
| 636 | 598 // zoom area |
| 631 | 599 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 643 | 600 data.zoomArea = zoomArea; |
| 636 | 601 // marks |
| 631 | 602 var marks = []; |
| 650 | 603 if (settings.mk) { |
| 604 var mk = settings.mk; | |
| 605 if (mk.indexOf(";") >= 0) { | |
| 606 var pa = mk.split(";"); // old format with ";" | |
| 607 } else { | |
| 608 var pa = mk.split(","); // new format | |
| 609 } | |
| 610 for (var i = 0; i < pa.length ; i++) { | |
| 611 var pos = pa[i].split("/"); | |
| 612 if (pos.length > 1) { | |
| 613 marks.push(geom.position(pos[0], pos[1])); | |
| 614 } | |
| 633 | 615 } |
| 631 | 616 } |
| 643 | 617 data.marks = marks; |
| 650 | 618 // mo (Scaler flags) |
| 619 var flags = {}; | |
| 620 if (settings.mo) { | |
| 621 var pa = settings.mo.split(","); | |
| 622 for (var i = 0; i < pa.length ; i++) { | |
| 623 flags[pa[i]] = pa[i]; | |
| 624 } | |
| 625 } | |
| 626 data.scalerFlags = flags; | |
| 627 // clop (digilib options) | |
| 628 var opts = {}; | |
| 629 if (settings.clop) { | |
| 630 var pa = settings.clop.split(","); | |
| 631 for (var i = 0; i < pa.length ; i++) { | |
| 632 opts[pa[i]] = pa[i]; | |
| 633 } | |
| 634 } | |
| 635 data.dlOpts = opts; | |
| 661 | 636 // birdview option |
| 637 if (opts.birdview) { | |
| 638 settings.isBirdDivVisible = 1; | |
| 639 } | |
| 655 | 640 }; |
| 641 | |
| 631 | 642 // put objects back into parameters |
| 643 var packParams = function (data) { | |
| 644 var settings = data.settings; | |
| 636 | 645 // zoom area |
| 643 | 646 if (data.zoomArea) { |
| 647 | 647 settings.wx = cropFloat(data.zoomArea.x); |
| 648 settings.wy = cropFloat(data.zoomArea.y); | |
| 649 settings.ww = cropFloat(data.zoomArea.width); | |
| 650 settings.wh = cropFloat(data.zoomArea.height); | |
| 631 | 651 } |
| 636 | 652 // marks |
| 643 | 653 if (data.marks) { |
| 650 | 654 settings.mk = ''; |
| 643 | 655 for (var i = 0; i < data.marks.length; i++) { |
| 650 | 656 if (i) { |
| 657 settings.mk += ','; | |
| 658 } | |
| 659 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
| 631 | 660 } |
| 650 | 661 } |
| 662 // Scaler flags | |
| 663 if (data.scalerFlags) { | |
| 664 var mo = ''; | |
| 665 for (var f in data.scalerFlags) { | |
| 666 if (mo) { | |
| 667 mo += ','; | |
| 668 } | |
| 669 mo += f; | |
| 670 } | |
| 671 settings.mo = mo; | |
| 672 } | |
| 688 | 673 // digilib option birdview TODO: replace with cookie |
| 674 //if (settings.isBirdDivVisible) { | |
| 675 // data.dlOpts.birdview = 1; | |
| 676 //} else { | |
| 677 // delete data.dlOpts.birdview; | |
| 678 //} | |
| 679 | |
| 650 | 680 // digilib options |
| 681 if (data.dlOpts) { | |
| 682 var clop = ''; | |
| 683 for (var o in data.dlOpts) { | |
| 684 if (clop) { | |
| 685 clop += ','; | |
| 686 } | |
| 687 clop += o; | |
| 688 } | |
| 689 settings.clop = clop; | |
| 631 | 690 } |
| 691 }; | |
| 655 | 692 |
| 688 | 693 // clear digilib data for reset |
| 694 var resetData = function (data) { | |
| 695 if (data.zoomArea) delete data.zoomArea; | |
| 696 if (data.marks) delete data.marks; | |
| 697 if (data.scalerFlags) delete data.scalerFlags; | |
| 698 if (data.dlOpts) delete data.dlOpts; | |
| 699 }; | |
| 700 | |
| 622 | 701 // (re)load the img from a new scaler URL |
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702 var redisplay = function (data) { |
| 636 | 703 var settings = data.settings; |
| 704 if (settings.interactionMode === 'fullscreen') { | |
| 705 // update location.href (browser URL) in fullscreen mode | |
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706 var url = getDigilibUrl(data); |
| 636 | 707 var history = window.history; |
| 708 if (typeof(history.pushState) === 'function') { | |
| 709 console.debug("we could modify history, but we don't..."); | |
| 710 } | |
| 711 window.location = url; | |
| 712 } else { | |
| 713 // embedded mode -- just change img src | |
| 714 var url = getScalerUrl(data); | |
| 715 data.$img.attr('src', url); | |
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716 // and update bird's eye view |
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717 //if (settings.isBirdDivVisible) { |
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718 // renderBirdZoom(data); |
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719 //} |
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720 }; |
| 622 | 721 }; |
| 722 | |
| 662 | 723 // returns maximum size for scaler img in fullscreen mode |
| 724 var getFullscreenImgSize = function($elem) { | |
| 725 var $win = $(window); | |
| 726 var winH = $win.height(); | |
| 727 var winW = $win.width(); | |
| 728 // TODO: account for borders? | |
| 729 return geom.size(winW, winH); | |
| 730 }; | |
| 731 | |
| 608 | 732 // creates HTML structure for digilib in elem |
| 627 | 733 var setupScalerDiv = function (data) { |
| 734 var settings = data.settings; | |
| 647 | 735 var $elem = data.$elem; |
| 686 | 736 var $img, scalerUrl; |
| 737 // fullscreen | |
| 608 | 738 if (settings.interactionMode === 'fullscreen') { |
| 609 | 739 var imgSize = getFullscreenImgSize($elem); |
| 650 | 740 // fitwidth/height omits destination height/width |
| 741 if (data.dlOpts['fitheight'] == null) { | |
| 742 settings.dw = imgSize.width; | |
| 686 | 743 }; |
| 650 | 744 if (data.dlOpts['fitwidth'] == null) { |
| 745 settings.dh = imgSize.height; | |
| 686 | 746 }; |
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747 $img = $('<img/>'); |
| 686 | 748 scalerUrl = getScalerUrl(data); |
| 749 // embedded mode -- try to keep img tag | |
| 609 | 750 } else { |
| 623 | 751 $img = $elem.find('img'); |
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752 if ($img.length > 0) { |
| 686 | 753 console.debug("img detach:", $img); |
| 754 scalerUrl = $img.attr('src'); | |
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755 $img.detach(); |
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756 } else { |
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757 $img = $('<img/>'); |
| 686 | 758 scalerUrl = getScalerUrl(data); |
| 759 }; | |
| 608 | 760 } |
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761 // create new html |
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762 $elem.empty(); // TODO: should we keep stuff for customization? |
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763 var $scaler = $('<div class="scaler"/>'); |
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764 $elem.append($scaler); |
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765 $scaler.append($img); |
| 622 | 766 $img.addClass('pic'); |
| 649 | 767 data.$scaler = $scaler; |
| 636 | 768 data.$img = $img; |
| 687 | 769 // setup image load handler before setting the src attribute (IE bug) |
| 770 $img.load(scalerImgLoadedHandler(data)); | |
| 771 $img.attr('src', scalerUrl); | |
| 608 | 772 }; |
| 615 | 773 |
| 610 | 774 // creates HTML structure for buttons in elem |
| 682 | 775 var setupButtons = function (data, buttonSetIdx) { |
| 647 | 776 var $elem = data.$elem; |
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777 var settings = data.settings; |
| 665 | 778 var mode = settings.interactionMode; |
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779 var buttonSettings = settings.buttonSettings[mode]; |
| 682 | 780 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
| 690 | 781 if (buttonGroup == null) { |
| 782 // no buttons here | |
| 783 return; | |
| 784 } | |
| 785 var $buttonsDiv = $('<div class="buttons"/>'); | |
| 682 | 786 var buttonNames = buttonSettings[buttonGroup]; |
| 787 for (var i = 0; i < buttonNames.length; i++) { | |
| 788 var buttonName = buttonNames[i]; | |
| 789 var buttonConfig = settings.buttons[buttonName]; | |
| 665 | 790 // construct the button html |
| 791 var $button = $('<div class="button"></div>'); | |
| 792 var $a = $('<a/>'); | |
| 793 var $img = $('<img class="button"/>'); | |
| 794 $buttonsDiv.append($button); | |
| 795 $button.append($a); | |
| 796 $a.append($img); | |
| 797 // add attributes and bindings | |
| 798 $button.attr('title', buttonConfig.tooltip); | |
| 682 | 799 $button.addClass('button-' + buttonName); |
| 665 | 800 // create handler for the buttons |
| 801 $a.bind('click.digilib', (function () { | |
| 802 // we create a new closure to capture the value of action | |
| 803 var action = buttonConfig.onclick; | |
| 804 if ($.isArray(action)) { | |
| 805 // the handler function calls digilib with action and parameters | |
| 806 return function (evt) { | |
| 807 console.debug('click action=', action, ' evt=', evt); | |
| 808 $elem.digilib.apply($elem, action); | |
| 809 return false; | |
| 810 }; | |
| 811 } else { | |
| 812 // the handler function calls digilib with action | |
| 813 return function (evt) { | |
| 814 console.debug('click action=', action, ' evt=', evt); | |
| 815 $elem.digilib(action); | |
| 816 return false; | |
| 817 }; | |
| 818 } | |
| 819 })()); | |
| 820 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
| 690 | 821 } |
| 662 | 822 // make buttons div scroll if too large for window |
| 823 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 824 $buttonsDiv.css('position', 'absolute'); | |
| 825 } | |
| 682 | 826 if (data.$buttonSets == null) { |
| 690 | 827 // show first button set |
| 828 $elem.append($buttonsDiv); | |
| 682 | 829 data.$buttonSets = [$buttonsDiv]; |
| 830 data.visibleButtonSets = 1; | |
| 831 } else { | |
| 690 | 832 // hide later button sets |
| 833 $buttonsDiv.hide(); | |
| 834 $elem.append($buttonsDiv); | |
| 682 | 835 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
| 836 } | |
| 612 | 837 return $buttonsDiv; |
| 610 | 838 }; |
| 615 | 839 |
| 840 // creates HTML structure for the bird's eye view in elem | |
| 638 | 841 var setupBirdDiv = function (data) { |
| 647 | 842 var $elem = data.$elem; |
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843 var settings = data.settings; |
| 615 | 844 // use only the relevant parameters |
| 845 var keys = ['fn','pn','dw','dh']; | |
| 674 | 846 var birdDivOptions = { |
| 847 dw : settings.birdDivWidth, | |
| 848 dh : settings.birdDivHeight | |
| 849 }; | |
| 850 var birdSettings = $.extend({}, settings, birdDivOptions); | |
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851 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
| 615 | 852 // the bird's eye div |
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853 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 615 | 854 // the detail indicator frame |
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855 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
| 615 | 856 // the small image |
| 857 var $birdImg = $('<img class="birdimg"/>'); | |
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858 $elem.append($birdDiv); |
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859 $birdDiv.append($birdZoom); |
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860 $birdDiv.append($birdImg); |
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861 $birdZoom.css(data.settings.birdIndicatorStyle); |
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862 data.$birdDiv = $birdDiv; |
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863 data.$birdZoom = $birdZoom; |
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864 data.$birdImg = $birdImg; |
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865 $birdImg.load(birdImgLoadedHandler(data)); |
| 615 | 866 $birdImg.attr('src', birdUrl); |
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867 if (data.settings.isBirdDivVisible) { |
| 687 | 868 $birdDiv.show(); |
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869 }; |
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870 birdZoom(data); |
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871 }; |
| 615 | 872 |
| 625 | 873 // creates HTML structure for the about view in elem |
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874 var setupAboutDiv = function (data) { |
| 647 | 875 var $elem = data.$elem; |
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876 var settings = data.settings; |
| 625 | 877 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 616 | 878 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 879 var $link = $('<a/>'); | |
| 880 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 881 var $content = $('<p/>'); | |
| 882 $elem.append($aboutDiv); | |
| 883 $aboutDiv.append($header); | |
| 884 $aboutDiv.append($link); | |
| 885 $aboutDiv.append($content); | |
| 886 $link.append($logo); | |
| 887 $logo.attr('src', settings.logoUrl); | |
| 635 | 888 $link.attr('href', settings.homeUrl); |
| 616 | 889 $content.text('Version: ' + settings.version); |
| 635 | 890 // click hides |
| 649 | 891 $aboutDiv.bind('click.digilib', function () { |
| 646 | 892 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 649 | 893 return false; |
| 894 }); | |
| 635 | 895 data.$aboutDiv = $aboutDiv; |
| 634 | 896 }; |
| 897 | |
| 635 | 898 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 899 var showDiv = function (isVisible, $div, show) { | |
| 645 | 900 if (show == null) { |
| 635 | 901 // toggle visibility |
| 902 isVisible = !isVisible; | |
| 903 } else { | |
| 904 // set visibility | |
| 905 isVisible = show; | |
| 906 } | |
| 907 if (isVisible) { | |
| 908 $div.fadeIn(); | |
| 909 } else { | |
| 910 $div.fadeOut(); | |
| 911 } | |
| 912 return isVisible; | |
| 634 | 913 }; |
| 616 | 914 |
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915 // create Transform from area and $img |
| 675 | 916 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
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917 var picrect = geom.rectangle($img); |
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918 var trafo = geom.transform(); |
| 675 | 919 // move zoom area offset to center |
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920 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 675 | 921 // scale zoom area size to [1,1] |
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922 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 675 | 923 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 924 if (rot || hmir || vmir) { | |
| 925 // move [0.5,0.5] to center | |
| 926 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 927 if (hmir) { | |
| 928 // mirror about center | |
| 929 trafo.concat(trafo.getMirror('y')); | |
| 930 } | |
| 931 if (vmir) { | |
| 932 // mirror about center | |
| 933 trafo.concat(trafo.getMirror('x')); | |
| 934 } | |
| 935 if (rot) { | |
| 936 // rotate around center | |
| 937 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
| 938 } | |
| 939 // move back | |
| 940 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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941 } |
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942 // scale to screen position and size |
|
658
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split bird's view code in two more parts, analog to scaler-img code.
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|
943 trafo.concat(trafo.getScale(picrect)); |
|
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944 trafo.concat(trafo.getTranslation(picrect)); |
|
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|
945 return trafo; |
| 655 | 946 }; |
|
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947 |
|
613
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keeping img tag for embedded mode seems to work now
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|
948 // returns function for load event of scaler img |
| 636 | 949 var scalerImgLoadedHandler = function (data) { |
| 950 var $img = data.$img; | |
| 633 | 951 return function () { |
| 627 | 952 console.debug("img loaded! this=", this, " data=", data); |
| 953 // create Transform from current area and picsize | |
| 675 | 954 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
| 955 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
| 686 | 956 console.debug("imgTrafo=", data.imgTrafo); |
| 627 | 957 // display marks |
| 633 | 958 renderMarks(data); |
| 627 | 959 //digilib.showArrows(); // show arrow overlays for zoom navigation |
|
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960 var $birdImg = data.$birdImg; |
|
670
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961 if ($birdImg) { |
|
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962 $birdImg.triggerHandler('load'); |
|
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963 }; |
|
658
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split bird's view code in two more parts, analog to scaler-img code.
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|
964 }; |
|
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split bird's view code in two more parts, analog to scaler-img code.
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|
965 }; |
|
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split bird's view code in two more parts, analog to scaler-img code.
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|
966 |
|
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|
967 // returns function for load event of bird's eye view img |
|
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968 var birdImgLoadedHandler = function (data) { |
|
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969 var $img = data.$birdImg; |
|
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970 return function () { |
|
677
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971 console.debug("birdimg loaded! this=", this, " data=", data); |
|
658
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972 // create Transform from current area and picsize |
|
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973 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
| 668 | 974 // display red indicator around zoomarea |
|
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975 renderbirdZoom(data); |
|
613
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976 }; |
|
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977 }; |
| 633 | 978 |
| 979 // place marks on the image | |
| 980 var renderMarks = function (data) { | |
| 647 | 981 var $elem = data.$elem; |
| 643 | 982 var marks = data.marks; |
| 649 | 983 // TODO: clear marks first(?) |
| 633 | 984 for (var i = 0; i < marks.length; i++) { |
| 985 var mark = marks[i]; | |
| 643 | 986 if (data.zoomArea.containsPosition(mark)) { |
| 633 | 987 var mpos = data.imgTrafo.transform(mark); |
|
664
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988 console.debug("renderMarks: mpos=",mpos); |
| 633 | 989 // create mark |
| 990 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 991 var $mark = $(html); | |
| 992 $elem.append($mark); | |
| 654 | 993 $mark.offset({left : mpos.x, top : mpos.y}); |
| 633 | 994 } |
| 995 } | |
| 996 }; | |
| 655 | 997 |
|
677
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998 // show zoom area indicator on bird's eye view |
|
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999 var renderbirdZoom = function (data) { |
|
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1000 var $birdZoom = data.$birdZoom; |
| 659 | 1001 var zoomArea = data.zoomArea; |
| 1002 var indRect = data.birdTrafo.transform(zoomArea); | |
|
670
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1003 var coords = { |
|
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1004 left : indRect.x-2, // acount for frame width |
|
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1005 top : indRect.y-2, |
|
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1006 width : indRect.width, |
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1007 height: indRect.height |
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1008 }; |
|
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1009 var normalSize = isFullArea(zoomArea); |
|
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1010 if (data.settings.interactionMode === 'fullscreen') { |
|
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1011 // no animation for fullscreen |
|
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1012 if (normalSize) return $birdZoom.hide(); |
|
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1013 $birdZoom.width(coords.width); |
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1014 $birdZoom.height(coords.height); |
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1015 $birdZoom.offset(coords); |
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1016 $birdZoom.show(); |
|
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1017 return; |
|
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|
1018 }; |
|
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1019 // nice animation for embedded mode :-) |
|
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1020 var makeCompleteFunction = function($birdZoom, normalSize) { |
|
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1021 return function() { |
|
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1022 if (normalSize) $birdZoom.hide(); |
|
672
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1023 }; |
|
670
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1024 }; |
|
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1025 var opts = { |
|
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1026 'complete' : makeCompleteFunction($birdZoom, normalSize) |
|
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|
1027 }; |
|
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1028 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
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1029 $birdZoom.animate(coords, opts); |
|
664
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|
1030 }; |
| 659 | 1031 |
| 647 | 1032 // zooms by the given factor |
| 643 | 1033 var zoomBy = function(data, factor) { |
| 1034 var area = data.zoomArea; | |
| 1035 var newarea = area.copy(); | |
| 1036 // scale | |
| 1037 newarea.width /= factor; | |
| 1038 newarea.height /= factor; | |
| 1039 // and recenter | |
| 1040 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 1041 newarea.y -= 0.5 * (newarea.height - area.height); | |
| 1042 newarea = MAX_ZOOMAREA.fit(newarea); | |
| 1043 data.zoomArea = newarea; | |
|
644
ee8ccd84c5f8
reload doesn't take list of changed parameters any more
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diff
changeset
|
1044 redisplay(data); |
| 643 | 1045 }; |
| 1046 | |
| 647 | 1047 // add a mark where clicked |
| 1048 var setMark = function (data) { | |
| 649 | 1049 var $scaler = data.$scaler; |
| 647 | 1050 // start event capturing |
| 649 | 1051 $scaler.one('click.digilib', function (evt) { |
| 647 | 1052 // event handler adding a new mark |
|
672
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diff
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|
1053 var mpos = geom.position(evt); |
| 647 | 1054 var pos = data.imgTrafo.invtransform(mpos); |
| 1055 data.marks.push(pos); | |
| 1056 redisplay(data); | |
| 649 | 1057 return false; // do we even get here? |
| 647 | 1058 }); |
| 1059 }; | |
| 668 | 1060 |
| 654 | 1061 var zoomArea = function(data) { |
| 1062 $elem = data.$elem; | |
| 1063 $scaler = data.$scaler; | |
| 1064 var pt1, pt2; | |
| 1065 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 1066 $elem.append($zoomDiv); | |
| 668 | 1067 $zoomDiv.css(data.settings.zoomrectStyle); |
| 654 | 1068 var picRect = geom.rectangle($scaler); |
| 1069 // FIX ME: is there a way to query the border width from CSS info? | |
| 1070 // rect.x -= 2; // account for overlay borders | |
| 1071 // rect.y -= 2; | |
| 1072 | |
| 1073 var zoomStart = function (evt) { | |
| 1074 pt1 = geom.position(evt); | |
| 1075 // setup and show zoom div | |
| 1076 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
| 1077 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
| 668 | 1078 $zoomDiv.width(0).height(0); |
| 654 | 1079 $zoomDiv.show(); |
| 1080 // register events | |
| 1081 $elem.bind("mousemove.digilib", zoomMove); | |
| 1082 $elem.bind("mouseup.digilib", zoomEnd); | |
| 1083 return false; | |
| 1084 }; | |
| 668 | 1085 |
| 654 | 1086 // mouseup handler: end moving |
| 1087 var zoomEnd = function (evt) { | |
| 1088 pt2 = geom.position(evt); | |
| 1089 // assume a click and continue if the area is too small | |
| 1090 var clickRect = geom.rectangle(pt1, pt2); | |
| 1091 if (clickRect.getArea() <= 5) { | |
| 1092 return false; | |
| 1093 } | |
| 1094 // hide zoom div | |
| 1095 $zoomDiv.remove(); | |
| 1096 // unregister events | |
| 1097 $elem.unbind("mousemove.digilib", zoomMove); | |
| 1098 $elem.unbind("mouseup.digilib", zoomEnd); | |
| 1099 // clip and transform | |
| 1100 clickRect.clipTo(picRect); | |
| 1101 var area = data.imgTrafo.invtransform(clickRect); | |
| 1102 data.zoomArea = area; | |
| 1103 // zoomed is always fit | |
| 1104 data.settings.ws = 1; | |
| 1105 redisplay(data); | |
| 1106 return false; | |
| 1107 }; | |
| 668 | 1108 |
| 654 | 1109 // mouse move handler |
| 1110 var zoomMove = function (evt) { | |
| 1111 pt2 = geom.position(evt); | |
| 1112 var rect = geom.rectangle(pt1, pt2); | |
| 1113 rect.clipTo(picRect); | |
| 1114 // update zoom div | |
|
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diff
changeset
|
1115 rect.adjustDiv($zoomDiv); |
| 654 | 1116 return false; |
| 1117 }; | |
| 668 | 1118 |
| 654 | 1119 // bind start zoom handler |
| 1120 $scaler.one('mousedown.digilib', zoomStart); | |
| 1121 }; | |
| 647 | 1122 |
|
678
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|
1123 var birdZoom = function(data) { |
|
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|
1124 var $birdImg = data.$birdImg; |
|
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|
1125 var $birdZoom = data.$birdZoom; |
|
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|
1126 var startPos, newRect, birdImgRect, birdZoomRect; |
|
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|
1127 |
|
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|
1128 var birdZoomMove = function(evt) { |
|
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|
1129 // mousemove handler: drag |
|
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|
1130 var pos = geom.position(evt); |
|
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|
1131 var dx = pos.x - startPos.x; |
|
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|
1132 var dy = pos.y - startPos.y; |
|
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|
1133 // move birdZoom div, keeping size |
|
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|
1134 newRect = geom.rectangle( |
|
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|
1135 birdZoomRect.x + dx, |
|
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|
1136 birdZoomRect.y + dy, |
|
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|
1137 birdZoomRect.width, |
|
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|
1138 birdZoomRect.height |
|
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|
1139 ); |
|
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|
1140 // stay within birdimage |
|
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|
1141 newRect.stayInside(birdImgRect); |
|
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|
1142 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
|
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|
1143 // $birdZoom.show(); |
|
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|
1144 return false; |
|
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|
1145 }; |
|
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|
1146 |
|
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|
1147 var birdZoomEndDrag = function(evt) { |
|
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|
1148 // mouseup handler: reload page |
|
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|
1149 var settings = data.settings; |
| 680 | 1150 $(document).unbind("mousemove.digilib", birdZoomMove); |
| 1151 $(document).unbind("mouseup.digilib", birdZoomEndDrag); | |
| 1152 $birdZoom.unbind("mousemove.digilib", birdZoomMove); | |
| 1153 $birdZoom.unbind("mouseup.digilib", birdZoomEndDrag); | |
|
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|
1154 if (newRect == null) { // no movement happened |
|
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|
1155 startPos = birdZoomRect.getCenter(); |
|
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|
1156 birdZoomMove(evt); // set center to click position |
|
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|
1157 }; |
|
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|
1158 if (data.zoomArea) { |
| 679 | 1159 // should always be true |
| 1160 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
| 1161 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
| 1162 data.zoomArea.x = x; | |
| 1163 data.zoomArea.y = y; | |
|
678
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|
1164 }; |
|
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|
1165 settings.ws = 1; // zoomed is always fit |
|
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|
1166 redisplay(data); |
|
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|
1167 return false; |
|
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|
1168 }; |
|
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|
1169 |
|
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|
1170 var birdZoomStartDrag = function(evt) { |
|
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1171 // mousedown handler: start dragging bird zoom to a new position |
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1172 startPos = geom.position(evt); |
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1173 birdImgRect = geom.rectangle($birdImg); |
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1174 birdZoomRect = geom.rectangle($birdZoom); |
| 680 | 1175 $(document).bind("mousemove.digilib", birdZoomMove); |
| 1176 $(document).bind("mouseup.digilib", birdZoomEndDrag); | |
| 1177 $birdZoom.bind("mousemove.digilib", birdZoomMove); | |
| 1178 $birdZoom.bind("mouseup.digilib", birdZoomEndDrag); | |
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1179 return false; |
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1180 }; |
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1181 |
| 681 | 1182 $birdImg.bind("mousedown.digilib", birdZoomStartDrag); |
| 1183 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag); | |
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1184 }; |
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1185 |
| 650 | 1186 // sets a key to a value (relative values with +/- if relative=true) |
| 1187 var setNumValue = function(settings, key, value) { | |
| 1188 if (isNumber(value)) return settings[key] = value; | |
| 1189 var sign = value.substring(0,1); | |
| 1190 if (sign === '+' || sign === '-') { | |
| 1191 if (settings[key] == null) { | |
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1192 // this isn't perfect but still... |
| 650 | 1193 settings[key] = 0; |
| 1194 } | |
| 1195 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
| 1196 } else { | |
| 1197 settings[key] = value; | |
| 1198 } | |
| 1199 return settings[key]; | |
| 1200 }; | |
| 655 | 1201 |
| 1202 // auxiliary function (from old dllib.js) | |
| 659 | 1203 isFullArea = function(area) { |
| 1204 return (area.width === 1.0) && (area.height === 1.0); | |
| 655 | 1205 }; |
| 1206 | |
| 641 | 1207 // auxiliary function (from Douglas Crockford, A.10) |
| 1208 var isNumber = function isNumber(value) { | |
| 1209 return typeof value === 'number' && isFinite(value); | |
| 1210 }; | |
| 655 | 1211 |
| 631 | 1212 // auxiliary function to crop senseless precision |
| 1213 var cropFloat = function (x) { | |
| 637 | 1214 return parseInt(10000 * x, 10) / 10000; |
| 631 | 1215 }; |
| 655 | 1216 |
| 605 | 1217 // hook plugin into jquery |
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1218 $.fn.digilib = function(action) { |
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1219 if (actions[action]) { |
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1220 // call action on this with the remaining arguments (inserting data as first argument) |
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1221 var $elem = $(this); |
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1222 var data = $elem.data('digilib'); |
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1223 var args = Array.prototype.slice.call(arguments, 1); |
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1224 args.unshift(data); |
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1225 return actions[action].apply(this, args); |
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1226 } else if (typeof(action) === 'object' || !action) { |
| 634 | 1227 // call init on this |
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1228 return actions.init.apply(this, arguments); |
| 605 | 1229 } else { |
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1230 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
| 605 | 1231 } |
| 1232 }; | |
| 604 | 1233 |
| 1234 })(jQuery); |