Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 681:0583d0a38de5 jquery
reset button plus action
| author | hertzhaft |
|---|---|
| date | Wed, 26 Jan 2011 22:34:26 +0100 |
| parents | d18b4170182f |
| children | 2493d64eae64 |
| 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 = { | |
| 679 | 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 $debug.append('<div class="_error">' + argstr + '</div>'); | |
| 30 } | |
| 629 | 31 }; |
| 32 } | |
| 597 | 33 |
| 34 (function($) { | |
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35 var buttons = { |
| 603 | 36 reference : { |
| 37 onclick : "javascript:getRefWin()", | |
| 38 tooltip : "get a reference URL", | |
| 39 img : "reference.png" | |
| 40 }, | |
| 41 zoomin : { | |
| 636 | 42 onclick : ["zoomBy", 1.4], |
| 603 | 43 tooltip : "zoom in", |
| 44 img : "zoom-in.png" | |
| 45 }, | |
| 46 zoomout : { | |
| 636 | 47 onclick : ["zoomBy", 0.7], |
| 603 | 48 tooltip : "zoom out", |
| 49 img : "zoom-out.png" | |
| 50 }, | |
| 51 zoomarea : { | |
| 647 | 52 onclick : "zoomArea", |
| 603 | 53 tooltip : "zoom area", |
| 54 img : "zoom-area.png" | |
| 55 }, | |
| 56 zoomfull : { | |
| 643 | 57 onclick : "zoomFull", |
| 603 | 58 tooltip : "view the whole image", |
| 59 img : "zoom-full.png" | |
| 60 }, | |
| 61 pagewidth : { | |
| 643 | 62 onclick : ["zoomFull", "width"], |
| 603 | 63 tooltip : "page width", |
| 64 img : "pagewidth.png" | |
| 65 }, | |
| 66 back : { | |
| 616 | 67 onclick : ["gotoPage", "-1"], |
| 603 | 68 tooltip : "goto previous image", |
| 69 img : "back.png" | |
| 70 }, | |
| 71 fwd : { | |
| 616 | 72 onclick : ["gotoPage", "+1"], |
| 603 | 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 : { | |
| 628 | 82 onclick : "showBirdDiv", |
| 603 | 83 tooltip : "show bird's eye view", |
| 84 img : "birds-eye.png" | |
| 85 }, | |
| 86 help : { | |
| 628 | 87 onclick : "showAboutDiv", |
| 603 | 88 tooltip : "about Digilib", |
| 89 img : "help.png" | |
| 90 }, | |
| 91 reset : { | |
| 681 | 92 onclick : "reset", |
| 603 | 93 tooltip : "reset image", |
| 94 img : "reset.png" | |
| 95 }, | |
| 96 mark : { | |
| 640 | 97 onclick : "setMark", |
| 603 | 98 tooltip : "set a mark", |
| 99 img : "mark.png" | |
| 100 }, | |
| 101 delmark : { | |
| 643 | 102 onclick : "removeMark", |
| 603 | 103 tooltip : "delete the last mark", |
| 104 img : "delmark.png" | |
| 105 }, | |
| 106 hmir : { | |
| 654 | 107 onclick : ["mirror", "h"], |
| 603 | 108 tooltip : "mirror horizontally", |
| 109 img : "mirror-horizontal.png" | |
| 110 }, | |
| 111 vmir : { | |
| 654 | 112 onclick : ["mirror", "v"], |
| 603 | 113 tooltip : "mirror vertically", |
| 114 img : "mirror-vertical.png" | |
| 115 }, | |
| 116 rot : { | |
| 656 | 117 onclick : "rotate", |
| 603 | 118 tooltip : "rotate image", |
| 119 img : "rotate.png" | |
| 120 }, | |
| 121 brgt : { | |
| 656 | 122 onclick : "brightness", |
| 603 | 123 tooltip : "set brightness", |
| 124 img : "brightness.png" | |
| 125 }, | |
| 126 cont : { | |
| 656 | 127 onclick : "contrast", |
| 603 | 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 }, | |
| 156 options : { | |
| 157 onclick : "javascript:toggleOptionDiv()", | |
| 158 tooltip : "hide options", | |
| 159 img : "options.png" | |
| 160 }, | |
| 161 SEP : { | |
| 162 img : "sep.png" | |
| 163 } | |
| 164 }; | |
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165 |
| 598 | 166 var defaults = { |
| 609 | 167 // version of this script |
| 628 | 168 'version' : 'jquery.digilib.js 0.9', |
| 609 | 169 // logo url |
| 170 'logoUrl' : '../img/digilib-logo-text1.png', | |
| 628 | 171 // homepage url (behind logo) |
| 172 'homeUrl' : 'http://digilib.berlios.de', | |
| 603 | 173 // base URL to Scaler servlet |
| 645 | 174 'scalerBaseUrl' : null, |
| 603 | 175 // list of Scaler parameters |
| 620 | 176 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
| 177 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
| 178 // Scaler parameter defaults | |
| 636 | 179 'pn' : 1, |
| 620 | 180 'ww' : 1.0, |
| 181 'wh' : 1.0, | |
| 182 'wx' : 0.0, | |
| 183 'wy' : 0.0, | |
| 184 'ws' : 1.0, | |
| 636 | 185 'mo' : '', |
| 186 'rot' : 0, | |
| 187 'cont' : 0, | |
| 188 'brgt' : 0, | |
| 189 'rgbm' : '0/0/0', | |
| 190 'rgba' : '0/0/0', | |
| 191 'ddpi' : null, | |
| 192 'ddpix' : null, | |
| 193 'ddpiy' : null, | |
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194 // list of digilib parameters |
| 643 | 195 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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196 // digilib parameter defaults |
| 636 | 197 'mk' : '', |
| 643 | 198 'clop' : '', |
| 636 | 199 // mode of operation: |
| 200 // fullscreen = take parameters from page URL, keep state in page URL | |
| 201 // embedded = take parameters from Javascript options, keep state inside object | |
| 603 | 202 'interactionMode' : 'fullscreen', |
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203 // buttons |
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204 'buttons' : buttons, |
| 661 | 205 // defaults for digilib buttons |
| 658 | 206 'buttonSettings' : { |
| 207 'fullscreen' : { | |
| 661 | 208 // path to button images (must end with a slash) |
| 658 | 209 'imagePath' : 'img/fullscreen/', |
| 210 //'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","options"], | |
| 681 | 211 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","mark","delmark","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","calibrationx","scale","bird","help","reset","options"], |
| 212 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","options"], | |
| 675 | 213 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 214 }, |
| 215 'embedded' : { | |
| 216 'imagePath' : 'img/embedded/16/', | |
| 681 | 217 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","scale","bird","help","reset","options"], |
| 218 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","options"], | |
| 675 | 219 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 220 } |
| 221 }, | |
| 645 | 222 // button groups |
| 609 | 223 // is birdView shown? |
| 224 'isBirdDivVisible' : false, | |
| 661 | 225 // dimensions of bird's eye div |
| 667 | 226 'birdDivWidth' : 200, |
| 227 'birdDivHeight' : 200, | |
| 661 | 228 // style of the zoom area indicator in the bird's eye div |
| 652 | 229 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
| 661 | 230 // style of zoom area "rubber band" |
| 231 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
| 609 | 232 // is the "about" window shown? |
| 233 'isAboutDivVisible' : false | |
| 234 | |
| 603 | 235 }; |
| 648 | 236 |
| 601 | 237 // affine geometry classes |
| 238 var geom = dlGeometry(); | |
| 648 | 239 |
| 636 | 240 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
| 648 | 241 |
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242 var actions = { |
| 661 | 243 // init: digilib initialization |
| 244 init : function(options) { | |
| 245 // settings for this digilib instance are merged from defaults and options | |
| 246 var settings = $.extend({}, defaults, options); | |
| 247 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
| 248 var queryParams = {}; | |
| 249 if (isFullscreen) { | |
| 250 queryParams = parseQueryParams(); | |
| 251 // check scalerBaseUrl | |
| 252 if (settings.scalerBaseUrl == null) { | |
| 253 // try the host this came from | |
| 254 var h = window.location.host; | |
| 255 if (window.location.host) { | |
| 256 var url = window.location.href; | |
| 257 // assume the page lives in [webapp]/jquery/ | |
| 258 var pos = url.indexOf('jquery/'); | |
| 259 if (pos > 0) { | |
| 260 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
| 645 | 261 } |
| 262 } | |
| 629 | 263 } |
| 661 | 264 } |
| 265 return this.each(function() { | |
| 266 var $elem = $(this); | |
| 267 var data = $elem.data('digilib'); | |
| 681 | 268 var params, elemSettings; |
| 661 | 269 // if the plugin hasn't been initialized yet |
| 270 if (!data) { | |
| 271 // merge query parameters | |
| 272 if (isFullscreen) { | |
| 681 | 273 params = queryParams; |
| 661 | 274 } else { |
| 681 | 275 params = parseImgParams($elem); |
| 276 }; | |
| 661 | 277 // store $(this) element in the settings |
| 681 | 278 elemSettings = $.extend({}, settings, params); |
| 661 | 279 data = { |
| 280 $elem : $elem, | |
| 281 settings : elemSettings, | |
| 681 | 282 queryParams : params |
| 661 | 283 }; |
| 284 // store in data element | |
| 285 $elem.data('digilib', data); | |
| 286 } | |
| 287 unpackParams(data); | |
| 675 | 288 // create HTML structure for scaler |
| 661 | 289 setupScalerDiv(data); |
| 675 | 290 // HTML for buttons (default is first button set) |
| 291 setupButtons(data, 0); | |
| 661 | 292 // bird's eye view creation |
| 293 if (elemSettings.isBirdDivVisible) { | |
| 631 | 294 setupBirdDiv(data); |
| 295 } | |
| 661 | 296 // about window creation - TODO: could be deferred? restrict to only one item? |
| 297 setupAboutDiv(data); | |
| 298 }); | |
| 299 }, | |
| 300 | |
| 301 // destroy: clean up digilib | |
| 302 destroy : function(data) { | |
| 303 return this.each(function(){ | |
| 304 var $elem = $(this); | |
| 305 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
| 306 data.digilib.remove(); | |
| 307 $elem.removeData('digilib'); | |
| 308 }); | |
| 309 }, | |
| 310 | |
| 311 // show or hide the 'about' window | |
| 312 showAboutDiv : function(data, show) { | |
| 313 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
| 314 }, | |
| 648 | 315 |
| 661 | 316 // event handler: toggles the visibility of the bird's eye window |
| 317 showBirdDiv : function (data, show) { | |
| 318 if (data.$birdDiv == null) { | |
| 319 // no bird div -> create | |
| 320 setupBirdDiv(data); | |
| 321 } | |
| 322 // TODO: keep bird view visible after reload (parameter, cookie?) | |
| 323 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
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324 data.$birdImg.triggerHandler('load'); |
| 661 | 325 }, |
| 326 | |
| 327 // goto given page nr (+/-: relative) | |
| 328 gotoPage : function (data, pageNr) { | |
| 329 var settings = data.settings; | |
| 330 var oldpn = settings.pn; | |
| 331 var pn = setNumValue(settings, "pn", pageNr); | |
| 332 if (pn == null) return false; // nothing happened | |
| 333 if (pn < 1) { | |
| 334 alert("no such page (page number too low)"); | |
| 335 settings.pn = oldpn; | |
| 336 return false; | |
| 337 } | |
| 338 if (settings.pt) { | |
| 339 if (pn > settings.pt) { | |
| 340 alert("no such page (page number too high)"); | |
| 616 | 341 settings.pn = oldpn; |
| 342 return false; | |
| 627 | 343 } |
| 661 | 344 } |
| 345 // reset mk and others(?) | |
| 346 data.marks = []; | |
| 347 data.zoomArea = MAX_ZOOMAREA; | |
| 348 // then reload | |
| 349 redisplay(data); | |
| 350 }, | |
| 647 | 351 |
| 661 | 352 // zoom by a given factor |
| 353 zoomBy : function (data, factor) { | |
| 354 zoomBy(data, factor); | |
| 355 }, | |
| 640 | 356 |
| 661 | 357 // zoom interactively |
| 358 zoomArea : function (data) { | |
| 359 zoomArea(data); | |
| 360 }, | |
| 643 | 361 |
| 661 | 362 // zoom out to full page |
| 363 zoomFull : function (data, mode) { | |
| 364 data.zoomArea = MAX_ZOOMAREA; | |
| 365 if (mode === 'width') { | |
| 366 data.dlOpts.fitwidth = 1; | |
| 367 delete data.dlOpts.fitheight; | |
| 368 } else if (mode === 'height') { | |
| 369 data.dlOpts.fitheight = 1; | |
| 370 delete data.dlOpts.fitwidth; | |
| 371 } else { | |
| 372 delete data.dlOpts.fitwidth; | |
| 373 delete data.dlOpts.fitheight; | |
| 374 } | |
| 375 redisplay(data); | |
| 376 }, | |
| 377 | |
| 378 // set a mark by clicking (or giving a position) | |
| 379 setMark : function (data, mpos) { | |
| 380 if (mpos == null) { | |
| 381 // interactive | |
| 382 setMark(data); | |
| 383 } else { | |
| 384 // use position | |
| 385 data.marks.push(pos); | |
| 656 | 386 redisplay(data); |
| 597 | 387 } |
| 661 | 388 }, |
| 389 | |
| 390 // remove the last mark | |
| 391 removeMark : function (data) { | |
| 392 data.marks.pop(); | |
| 393 redisplay(data); | |
| 394 }, | |
| 395 | |
| 396 // mirror the image | |
| 397 mirror : function (data, mode) { | |
| 398 var flags = data.scalerFlags; | |
| 399 if (mode === 'h') { | |
| 400 if (flags.hmir) { | |
| 401 delete flags.hmir; | |
| 402 } else { | |
| 403 flags.hmir = 1; | |
| 404 } | |
| 405 } else { | |
| 406 if (flags.vmir) { | |
| 407 delete flags.vmir; | |
| 408 } else { | |
| 409 flags.vmir = 1; | |
| 410 } | |
| 411 } | |
| 412 redisplay(data); | |
| 413 }, | |
| 643 | 414 |
| 661 | 415 // rotate the image |
| 416 rotate : function (data, angle) { | |
| 417 var rot = data.settings.rot; | |
| 418 if (angle == null) { | |
| 419 angle = window.prompt("Rotation angle:", rot); | |
| 420 } | |
| 421 data.settings.rot = angle; | |
| 422 redisplay(data); | |
| 423 }, | |
| 424 | |
| 425 // change brightness | |
| 426 brightness : function (data, factor) { | |
| 427 var brgt = data.settings.brgt; | |
| 428 if (factor == null) { | |
| 429 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 430 } | |
| 431 data.settings.brgt = factor; | |
| 432 redisplay(data); | |
| 433 }, | |
| 434 | |
| 435 // change contrast | |
| 436 contrast : function (data, factor) { | |
| 437 var cont = data.settings.cont; | |
| 438 if (factor == null) { | |
| 439 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 440 } | |
| 441 data.settings.cont = factor; | |
| 442 redisplay(data); | |
| 681 | 443 }, |
| 444 | |
| 445 reset : function (data) { | |
| 446 var settings = data.settings; | |
| 447 var paramNames = settings.digilibParamNames; | |
| 448 var params = data.queryParams; | |
| 449 resetData(data); | |
| 450 // delete all digilib parameters | |
| 451 for (var i = 0; i < paramNames.length; i++) { | |
| 452 var paramName = paramNames[i]; | |
| 453 delete settings[paramName]; | |
| 454 }; | |
| 455 // fullscreen: restore only fn/pn parameters | |
| 456 if (settings.interactionMode === 'fullscreen') { | |
| 457 settings['fn'] = params.fn; | |
| 458 settings['pn'] = params.pn; | |
| 459 // embedded: restore original parameters | |
| 460 } else { | |
| 461 $.extend(settings, params); | |
| 462 }; | |
| 463 redisplay(data); | |
| 661 | 464 } |
| 598 | 465 }; |
| 597 | 466 |
| 601 | 467 // returns parameters from page url |
| 600 | 468 var parseQueryParams = function() { |
| 629 | 469 return parseQueryString(window.location.search.slice(1)); |
| 470 }; | |
| 648 | 471 |
| 629 | 472 // returns parameters from embedded img-element |
| 600 | 473 var parseImgParams = function($elem) { |
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474 var src = $elem.find('img').first().attr('src'); |
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475 if (!src) { |
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476 return null; |
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477 } |
| 600 | 478 var pos = src.indexOf('?'); |
| 479 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 480 var scalerUrl = src.substring(0, pos); | |
| 620 | 481 var params = parseQueryString(query); |
| 482 params.scalerBaseUrl = scalerUrl; | |
| 483 return params; | |
| 629 | 484 }; |
| 600 | 485 |
| 601 | 486 // parses query parameter string into parameter object |
| 600 | 487 var parseQueryString = function(query) { |
| 488 var pairs = query.split("&"); | |
| 620 | 489 var params = {}; |
| 629 | 490 //var keys = []; |
| 600 | 491 for (var i = 0; i < pairs.length; i++) { |
| 492 var pair = pairs[i].split("="); | |
| 493 if (pair.length === 2) { | |
| 620 | 494 params[pair[0]] = pair[1]; |
| 629 | 495 //keys.push(pair[0]); |
| 627 | 496 } |
| 629 | 497 } |
| 620 | 498 return params; |
| 629 | 499 }; |
| 661 | 500 |
| 636 | 501 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 502 var getParamString = function (settings, keys, defaults) { | |
| 608 | 503 var paramString = ''; |
| 643 | 504 var nx = false; |
| 608 | 505 for (i = 0; i < keys.length; ++i) { |
| 506 var key = keys[i]; | |
| 656 | 507 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 608 | 508 // first param gets no '&' |
| 643 | 509 if (nx) { |
| 510 paramString += '&'; | |
| 511 } else { | |
| 512 nx = true; | |
| 513 } | |
| 608 | 514 // add parm=val |
| 515 paramString += key + '=' + settings[key]; | |
| 636 | 516 } |
| 608 | 517 } |
| 518 return paramString; | |
| 624 | 519 }; |
| 520 | |
| 629 | 521 // returns URL and query string for Scaler |
| 522 var getScalerUrl = function (data) { | |
| 646 | 523 var settings = data.settings; |
| 645 | 524 if (settings.scalerBaseUrl == null) { |
| 525 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
| 526 } | |
| 658 | 527 packParams(data); |
| 629 | 528 var keys = settings.scalerParamNames; |
| 636 | 529 var queryString = getParamString(settings, keys, defaults); |
| 629 | 530 var url = settings.scalerBaseUrl + '?' + queryString; |
| 531 return url; | |
| 532 }; | |
| 533 | |
| 534 // returns URL and query string for current digilib | |
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535 var getDigilibUrl = function (data) { |
| 636 | 536 packParams(data); |
| 629 | 537 var settings = data.settings; |
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538 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 629 | 539 var url = window.location.toString(); |
| 540 var pos = url.indexOf('?'); | |
| 541 var baseUrl = url.substring(0, pos); | |
| 542 var newurl = baseUrl + '?' + queryString; | |
| 543 return newurl; | |
| 544 }; | |
| 545 | |
| 648 | 546 // processes some parameters into objects and stuff |
| 624 | 547 var unpackParams = function (data) { |
| 548 var settings = data.settings; | |
| 629 | 549 // zoom area |
| 624 | 550 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 636 | 551 data.zoomArea = zoomArea; |
| 629 | 552 // marks |
| 624 | 553 var marks = []; |
| 643 | 554 if (settings.mk) { |
| 555 var mk = settings.mk; | |
| 556 if (mk.indexOf(";") >= 0) { | |
| 557 var pa = mk.split(";"); // old format with ";" | |
| 558 } else { | |
| 559 var pa = mk.split(","); // new format | |
| 560 } | |
| 561 for (var i = 0; i < pa.length ; i++) { | |
| 562 var pos = pa[i].split("/"); | |
| 563 if (pos.length > 1) { | |
| 564 marks.push(geom.position(pos[0], pos[1])); | |
| 565 } | |
| 626 | 566 } |
| 624 | 567 } |
| 636 | 568 data.marks = marks; |
| 643 | 569 // mo (Scaler flags) |
| 570 var flags = {}; | |
| 571 if (settings.mo) { | |
| 572 var pa = settings.mo.split(","); | |
| 573 for (var i = 0; i < pa.length ; i++) { | |
| 574 flags[pa[i]] = pa[i]; | |
| 575 } | |
| 576 } | |
| 577 data.scalerFlags = flags; | |
| 578 // clop (digilib options) | |
| 579 var opts = {}; | |
| 580 if (settings.clop) { | |
| 581 var pa = settings.clop.split(","); | |
| 582 for (var i = 0; i < pa.length ; i++) { | |
| 583 opts[pa[i]] = pa[i]; | |
| 584 } | |
| 585 } | |
| 586 data.dlOpts = opts; | |
| 654 | 587 // birdview option |
| 588 if (opts.birdview) { | |
| 589 settings.isBirdDivVisible = 1; | |
| 590 } | |
| 648 | 591 }; |
| 592 | |
| 624 | 593 // put objects back into parameters |
| 594 var packParams = function (data) { | |
| 595 var settings = data.settings; | |
| 629 | 596 // zoom area |
| 636 | 597 if (data.zoomArea) { |
| 640 | 598 settings.wx = cropFloat(data.zoomArea.x); |
| 599 settings.wy = cropFloat(data.zoomArea.y); | |
| 600 settings.ww = cropFloat(data.zoomArea.width); | |
| 601 settings.wh = cropFloat(data.zoomArea.height); | |
| 624 | 602 } |
| 629 | 603 // marks |
| 636 | 604 if (data.marks) { |
| 643 | 605 settings.mk = ''; |
| 636 | 606 for (var i = 0; i < data.marks.length; i++) { |
| 643 | 607 if (i) { |
| 608 settings.mk += ','; | |
| 609 } | |
| 610 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
| 624 | 611 } |
| 643 | 612 } |
| 613 // Scaler flags | |
| 614 if (data.scalerFlags) { | |
| 615 var mo = ''; | |
| 616 for (var f in data.scalerFlags) { | |
| 617 if (mo) { | |
| 618 mo += ','; | |
| 619 } | |
| 620 mo += f; | |
| 621 } | |
| 622 settings.mo = mo; | |
| 623 } | |
| 681 | 624 // digilib option birdview TODO: replace with cookie |
| 625 //if (settings.isBirdDivVisible) { | |
| 626 // data.dlOpts.birdview = 1; | |
| 627 //} else { | |
| 628 // delete data.dlOpts.birdview; | |
| 629 //} | |
| 630 | |
| 643 | 631 // digilib options |
| 632 if (data.dlOpts) { | |
| 633 var clop = ''; | |
| 634 for (var o in data.dlOpts) { | |
| 635 if (clop) { | |
| 636 clop += ','; | |
| 637 } | |
| 638 clop += o; | |
| 639 } | |
| 640 settings.clop = clop; | |
| 624 | 641 } |
| 642 }; | |
| 648 | 643 |
| 681 | 644 // clear digilib data for reset |
| 645 var resetData = function (data) { | |
| 646 if (data.zoomArea) delete data.zoomArea; | |
| 647 if (data.marks) delete data.marks; | |
| 648 if (data.scalerFlags) delete data.scalerFlags; | |
| 649 if (data.dlOpts) delete data.dlOpts; | |
| 650 }; | |
| 651 | |
| 615 | 652 // (re)load the img from a new scaler URL |
|
637
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653 var redisplay = function (data) { |
| 629 | 654 var settings = data.settings; |
| 655 if (settings.interactionMode === 'fullscreen') { | |
| 656 // update location.href (browser URL) in fullscreen mode | |
|
637
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657 var url = getDigilibUrl(data); |
| 629 | 658 var history = window.history; |
| 659 if (typeof(history.pushState) === 'function') { | |
| 660 console.debug("we could modify history, but we don't..."); | |
| 661 } | |
| 662 window.location = url; | |
| 663 } else { | |
| 664 // embedded mode -- just change img src | |
| 665 var url = getScalerUrl(data); | |
| 666 data.$img.attr('src', url); | |
|
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667 // and update bird's eye view |
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668 //if (settings.isBirdDivVisible) { |
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669 // renderBirdZoom(data); |
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670 //} |
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671 }; |
| 615 | 672 }; |
| 673 | |
| 655 | 674 // returns maximum size for scaler img in fullscreen mode |
| 675 var getFullscreenImgSize = function($elem) { | |
| 676 var $win = $(window); | |
| 677 var winH = $win.height(); | |
| 678 var winW = $win.width(); | |
| 679 // TODO: account for borders? | |
| 680 return geom.size(winW, winH); | |
| 681 }; | |
| 682 | |
| 601 | 683 // creates HTML structure for digilib in elem |
| 620 | 684 var setupScalerDiv = function (data) { |
| 685 var settings = data.settings; | |
| 640 | 686 var $elem = data.$elem; |
| 679 | 687 var $img, scalerUrl; |
| 688 // fullscreen | |
| 601 | 689 if (settings.interactionMode === 'fullscreen') { |
| 602 | 690 var imgSize = getFullscreenImgSize($elem); |
| 643 | 691 // fitwidth/height omits destination height/width |
| 692 if (data.dlOpts['fitheight'] == null) { | |
| 693 settings.dw = imgSize.width; | |
| 679 | 694 }; |
| 643 | 695 if (data.dlOpts['fitwidth'] == null) { |
| 696 settings.dh = imgSize.height; | |
| 679 | 697 }; |
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698 $img = $('<img/>'); |
| 679 | 699 scalerUrl = getScalerUrl(data); |
| 700 // embedded mode -- try to keep img tag | |
| 602 | 701 } else { |
| 616 | 702 $img = $elem.find('img'); |
|
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703 if ($img.length > 0) { |
| 679 | 704 console.debug("img detach:", $img); |
| 705 scalerUrl = $img.attr('src'); | |
|
606
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706 $img.detach(); |
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707 } else { |
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708 $img = $('<img/>'); |
| 679 | 709 scalerUrl = getScalerUrl(data); |
| 710 }; | |
| 601 | 711 } |
|
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712 // create new html |
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713 $elem.empty(); // TODO: should we keep stuff for customization? |
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714 var $scaler = $('<div class="scaler"/>'); |
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715 $elem.append($scaler); |
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716 $scaler.append($img); |
| 615 | 717 $img.addClass('pic'); |
| 642 | 718 data.$scaler = $scaler; |
| 629 | 719 data.$img = $img; |
| 680 | 720 // setup image load handler before setting the src attribute (IE bug) |
| 721 $img.load(scalerImgLoadedHandler(data)); | |
| 722 $img.attr('src', scalerUrl); | |
| 601 | 723 }; |
| 608 | 724 |
| 603 | 725 // creates HTML structure for buttons in elem |
| 675 | 726 var setupButtons = function (data, buttonSetIdx) { |
| 640 | 727 var $elem = data.$elem; |
|
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728 var settings = data.settings; |
| 658 | 729 var $buttonsDiv = $('<div class="buttons"></div>'); |
| 730 $elem.append($buttonsDiv); | |
| 731 var mode = settings.interactionMode; | |
|
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732 var buttonSettings = settings.buttonSettings[mode]; |
| 675 | 733 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
| 734 var buttonNames = buttonSettings[buttonGroup]; | |
| 735 for (var i = 0; i < buttonNames.length; i++) { | |
| 736 var buttonName = buttonNames[i]; | |
| 737 var buttonConfig = settings.buttons[buttonName]; | |
| 658 | 738 // construct the button html |
| 739 var $button = $('<div class="button"></div>'); | |
| 740 var $a = $('<a/>'); | |
| 741 var $img = $('<img class="button"/>'); | |
| 742 $buttonsDiv.append($button); | |
| 743 $button.append($a); | |
| 744 $a.append($img); | |
| 745 // add attributes and bindings | |
| 746 $button.attr('title', buttonConfig.tooltip); | |
| 675 | 747 $button.addClass('button-' + buttonName); |
| 658 | 748 // create handler for the buttons |
| 749 $a.bind('click.digilib', (function () { | |
| 750 // we create a new closure to capture the value of action | |
| 751 var action = buttonConfig.onclick; | |
| 752 if ($.isArray(action)) { | |
| 753 // the handler function calls digilib with action and parameters | |
| 754 return function (evt) { | |
| 755 console.debug('click action=', action, ' evt=', evt); | |
| 756 $elem.digilib.apply($elem, action); | |
| 757 return false; | |
| 758 }; | |
| 759 } else { | |
| 760 // the handler function calls digilib with action | |
| 761 return function (evt) { | |
| 762 console.debug('click action=', action, ' evt=', evt); | |
| 763 $elem.digilib(action); | |
| 764 return false; | |
| 765 }; | |
| 766 } | |
| 767 })()); | |
| 768 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
| 630 | 769 } |
| 655 | 770 // make buttons div scroll if too large for window |
| 771 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 772 $buttonsDiv.css('position', 'absolute'); | |
| 773 } | |
| 675 | 774 if (data.$buttonSets == null) { |
| 775 data.$buttonSets = [$buttonsDiv]; | |
| 776 data.visibleButtonSets = 1; | |
| 777 } else { | |
| 778 data.$buttonSets[buttonSetIdx] = $buttonsDiv; | |
| 779 } | |
| 605 | 780 return $buttonsDiv; |
| 603 | 781 }; |
| 608 | 782 |
| 783 // creates HTML structure for the bird's eye view in elem | |
| 631 | 784 var setupBirdDiv = function (data) { |
| 640 | 785 var $elem = data.$elem; |
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786 var settings = data.settings; |
| 608 | 787 // use only the relevant parameters |
| 788 var keys = ['fn','pn','dw','dh']; | |
| 667 | 789 var birdDivOptions = { |
| 790 dw : settings.birdDivWidth, | |
| 791 dh : settings.birdDivHeight | |
| 792 }; | |
| 793 var birdSettings = $.extend({}, settings, birdDivOptions); | |
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794 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
| 608 | 795 // the bird's eye div |
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796 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 608 | 797 // the detail indicator frame |
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798 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
| 608 | 799 // the small image |
| 800 var $birdImg = $('<img class="birdimg"/>'); | |
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801 $elem.append($birdDiv); |
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802 $birdDiv.append($birdZoom); |
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803 $birdDiv.append($birdImg); |
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804 $birdZoom.css(data.settings.birdIndicatorStyle); |
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805 data.$birdDiv = $birdDiv; |
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806 data.$birdZoom = $birdZoom; |
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807 data.$birdImg = $birdImg; |
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808 $birdImg.load(birdImgLoadedHandler(data)); |
| 608 | 809 $birdImg.attr('src', birdUrl); |
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810 if (data.settings.isBirdDivVisible) { |
| 680 | 811 $birdDiv.show(); |
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812 }; |
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813 birdZoom(data); |
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814 }; |
| 608 | 815 |
| 618 | 816 // creates HTML structure for the about view in elem |
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817 var setupAboutDiv = function (data) { |
| 640 | 818 var $elem = data.$elem; |
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819 var settings = data.settings; |
| 618 | 820 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 609 | 821 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 822 var $link = $('<a/>'); | |
| 823 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 824 var $content = $('<p/>'); | |
| 825 $elem.append($aboutDiv); | |
| 826 $aboutDiv.append($header); | |
| 827 $aboutDiv.append($link); | |
| 828 $aboutDiv.append($content); | |
| 829 $link.append($logo); | |
| 830 $logo.attr('src', settings.logoUrl); | |
| 628 | 831 $link.attr('href', settings.homeUrl); |
| 609 | 832 $content.text('Version: ' + settings.version); |
| 628 | 833 // click hides |
| 642 | 834 $aboutDiv.bind('click.digilib', function () { |
| 639 | 835 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 642 | 836 return false; |
| 837 }); | |
| 628 | 838 data.$aboutDiv = $aboutDiv; |
| 627 | 839 }; |
| 840 | |
| 628 | 841 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 842 var showDiv = function (isVisible, $div, show) { | |
| 638 | 843 if (show == null) { |
| 628 | 844 // toggle visibility |
| 845 isVisible = !isVisible; | |
| 846 } else { | |
| 847 // set visibility | |
| 848 isVisible = show; | |
| 849 } | |
| 850 if (isVisible) { | |
| 851 $div.fadeIn(); | |
| 852 } else { | |
| 853 $div.fadeOut(); | |
| 854 } | |
| 855 return isVisible; | |
| 627 | 856 }; |
| 609 | 857 |
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858 // create Transform from area and $img |
| 668 | 859 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
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860 var picrect = geom.rectangle($img); |
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861 var trafo = geom.transform(); |
| 668 | 862 // move zoom area offset to center |
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863 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 668 | 864 // scale zoom area size to [1,1] |
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865 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 668 | 866 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 867 if (rot || hmir || vmir) { | |
| 868 // move [0.5,0.5] to center | |
| 869 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 870 if (hmir) { | |
| 871 // mirror about center | |
| 872 trafo.concat(trafo.getMirror('y')); | |
| 873 } | |
| 874 if (vmir) { | |
| 875 // mirror about center | |
| 876 trafo.concat(trafo.getMirror('x')); | |
| 877 } | |
| 878 if (rot) { | |
| 879 // rotate around center | |
| 880 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
| 881 } | |
| 882 // move back | |
| 883 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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884 } |
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885 // scale to screen position and size |
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886 trafo.concat(trafo.getScale(picrect)); |
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887 trafo.concat(trafo.getTranslation(picrect)); |
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888 return trafo; |
| 648 | 889 }; |
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890 |
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891 // returns function for load event of scaler img |
| 629 | 892 var scalerImgLoadedHandler = function (data) { |
| 893 var $img = data.$img; | |
| 626 | 894 return function () { |
| 620 | 895 console.debug("img loaded! this=", this, " data=", data); |
| 896 // create Transform from current area and picsize | |
| 668 | 897 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
| 898 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
| 679 | 899 console.debug("imgTrafo=", data.imgTrafo); |
| 620 | 900 // display marks |
| 626 | 901 renderMarks(data); |
| 620 | 902 //digilib.showArrows(); // show arrow overlays for zoom navigation |
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903 var $birdImg = data.$birdImg; |
|
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904 if ($birdImg) { |
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905 $birdImg.triggerHandler('load'); |
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|
906 }; |
|
651
2d85d820501d
split bird's view code in two more parts, analog to scaler-img code.
robcast
parents:
649
diff
changeset
|
907 }; |
|
2d85d820501d
split bird's view code in two more parts, analog to scaler-img code.
robcast
parents:
649
diff
changeset
|
908 }; |
|
2d85d820501d
split bird's view code in two more parts, analog to scaler-img code.
robcast
parents:
649
diff
changeset
|
909 |
|
2d85d820501d
split bird's view code in two more parts, analog to scaler-img code.
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parents:
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diff
changeset
|
910 // returns function for load event of bird's eye view img |
|
2d85d820501d
split bird's view code in two more parts, analog to scaler-img code.
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diff
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|
911 var birdImgLoadedHandler = function (data) { |
|
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diff
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|
912 var $img = data.$birdImg; |
|
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split bird's view code in two more parts, analog to scaler-img code.
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diff
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|
913 return function () { |
|
670
2ce9d77677b1
took renderBirdArea hooks out of scalerImgLoaded into redisplay.
robcast
parents:
669
diff
changeset
|
914 console.debug("birdimg loaded! this=", this, " data=", data); |
|
651
2d85d820501d
split bird's view code in two more parts, analog to scaler-img code.
robcast
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diff
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|
915 // create Transform from current area and picsize |
|
2d85d820501d
split bird's view code in two more parts, analog to scaler-img code.
robcast
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diff
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|
916 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
| 661 | 917 // display red indicator around zoomarea |
|
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|
918 renderbirdZoom(data); |
|
606
d08d095430c3
keeping img tag for embedded mode seems to work now
robcast
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diff
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|
919 }; |
|
d08d095430c3
keeping img tag for embedded mode seems to work now
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diff
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|
920 }; |
| 626 | 921 |
| 922 // place marks on the image | |
| 923 var renderMarks = function (data) { | |
| 640 | 924 var $elem = data.$elem; |
| 636 | 925 var marks = data.marks; |
| 642 | 926 // TODO: clear marks first(?) |
| 626 | 927 for (var i = 0; i < marks.length; i++) { |
| 928 var mark = marks[i]; | |
| 636 | 929 if (data.zoomArea.containsPosition(mark)) { |
| 626 | 930 var mpos = data.imgTrafo.transform(mark); |
|
657
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work on getting transformation to work with rotation (currently still doesn't)
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diff
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|
931 console.debug("renderMarks: mpos=",mpos); |
| 626 | 932 // create mark |
| 933 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 934 var $mark = $(html); | |
| 935 $elem.append($mark); | |
| 647 | 936 $mark.offset({left : mpos.x, top : mpos.y}); |
| 626 | 937 } |
| 938 } | |
| 939 }; | |
| 648 | 940 |
|
670
2ce9d77677b1
took renderBirdArea hooks out of scalerImgLoaded into redisplay.
robcast
parents:
669
diff
changeset
|
941 // show zoom area indicator on bird's eye view |
|
671
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|
942 var renderbirdZoom = function (data) { |
|
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|
943 var $birdZoom = data.$birdZoom; |
| 652 | 944 var zoomArea = data.zoomArea; |
| 945 var indRect = data.birdTrafo.transform(zoomArea); | |
|
663
fda2d9bd9ba7
birdview: nice animation for embedded mode, none for fullscreen
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|
946 var coords = { |
|
fda2d9bd9ba7
birdview: nice animation for embedded mode, none for fullscreen
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|
947 left : indRect.x-2, // acount for frame width |
|
fda2d9bd9ba7
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|
948 top : indRect.y-2, |
|
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birdview: nice animation for embedded mode, none for fullscreen
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|
949 width : indRect.width, |
|
fda2d9bd9ba7
birdview: nice animation for embedded mode, none for fullscreen
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|
950 height: indRect.height |
|
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birdview: nice animation for embedded mode, none for fullscreen
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|
951 }; |
|
fda2d9bd9ba7
birdview: nice animation for embedded mode, none for fullscreen
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|
952 var normalSize = isFullArea(zoomArea); |
|
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|
953 if (data.settings.interactionMode === 'fullscreen') { |
|
fda2d9bd9ba7
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|
954 // no animation for fullscreen |
|
671
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|
955 if (normalSize) return $birdZoom.hide(); |
|
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|
956 $birdZoom.width(coords.width); |
|
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|
957 $birdZoom.height(coords.height); |
|
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|
958 $birdZoom.offset(coords); |
|
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|
959 $birdZoom.show(); |
|
663
fda2d9bd9ba7
birdview: nice animation for embedded mode, none for fullscreen
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diff
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|
960 return; |
|
fda2d9bd9ba7
birdview: nice animation for embedded mode, none for fullscreen
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|
961 }; |
|
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birdview: nice animation for embedded mode, none for fullscreen
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|
962 // nice animation for embedded mode :-) |
|
671
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|
963 var makeCompleteFunction = function($birdZoom, normalSize) { |
|
663
fda2d9bd9ba7
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|
964 return function() { |
|
671
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|
965 if (normalSize) $birdZoom.hide(); |
|
665
0d3d9517e448
image transform works now under rotation!!! (at least for multiples of 90deg)
robcast
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664
diff
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|
966 }; |
|
663
fda2d9bd9ba7
birdview: nice animation for embedded mode, none for fullscreen
hertzhaft
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diff
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|
967 }; |
|
fda2d9bd9ba7
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|
968 var opts = { |
|
671
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|
969 'complete' : makeCompleteFunction($birdZoom, normalSize) |
|
663
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diff
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|
970 }; |
|
671
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|
971 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
|
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diff
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|
972 $birdZoom.animate(coords, opts); |
|
657
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diff
changeset
|
973 }; |
| 652 | 974 |
| 640 | 975 // zooms by the given factor |
| 636 | 976 var zoomBy = function(data, factor) { |
| 977 var area = data.zoomArea; | |
| 978 var newarea = area.copy(); | |
| 979 // scale | |
| 980 newarea.width /= factor; | |
| 981 newarea.height /= factor; | |
| 982 // and recenter | |
| 983 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 984 newarea.y -= 0.5 * (newarea.height - area.height); | |
| 985 newarea = MAX_ZOOMAREA.fit(newarea); | |
| 986 data.zoomArea = newarea; | |
|
637
71cc855e2e4b
reload doesn't take list of changed parameters any more
robcast
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diff
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|
987 redisplay(data); |
| 636 | 988 }; |
| 989 | |
| 640 | 990 // add a mark where clicked |
| 991 var setMark = function (data) { | |
| 642 | 992 var $scaler = data.$scaler; |
| 640 | 993 // start event capturing |
| 642 | 994 $scaler.one('click.digilib', function (evt) { |
| 640 | 995 // event handler adding a new mark |
|
665
0d3d9517e448
image transform works now under rotation!!! (at least for multiples of 90deg)
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664
diff
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|
996 var mpos = geom.position(evt); |
| 640 | 997 var pos = data.imgTrafo.invtransform(mpos); |
| 998 data.marks.push(pos); | |
| 999 redisplay(data); | |
| 642 | 1000 return false; // do we even get here? |
| 640 | 1001 }); |
| 1002 }; | |
| 661 | 1003 |
| 647 | 1004 var zoomArea = function(data) { |
| 1005 $elem = data.$elem; | |
| 1006 $scaler = data.$scaler; | |
| 1007 var pt1, pt2; | |
| 1008 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 1009 $elem.append($zoomDiv); | |
| 661 | 1010 $zoomDiv.css(data.settings.zoomrectStyle); |
| 647 | 1011 var picRect = geom.rectangle($scaler); |
| 1012 // FIX ME: is there a way to query the border width from CSS info? | |
| 1013 // rect.x -= 2; // account for overlay borders | |
| 1014 // rect.y -= 2; | |
| 1015 | |
| 1016 var zoomStart = function (evt) { | |
| 1017 pt1 = geom.position(evt); | |
| 1018 // setup and show zoom div | |
| 1019 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
| 1020 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
| 661 | 1021 $zoomDiv.width(0).height(0); |
| 647 | 1022 $zoomDiv.show(); |
| 1023 // register events | |
| 1024 $elem.bind("mousemove.digilib", zoomMove); | |
| 1025 $elem.bind("mouseup.digilib", zoomEnd); | |
| 1026 return false; | |
| 1027 }; | |
| 661 | 1028 |
| 647 | 1029 // mouseup handler: end moving |
| 1030 var zoomEnd = function (evt) { | |
| 1031 pt2 = geom.position(evt); | |
| 1032 // assume a click and continue if the area is too small | |
| 1033 var clickRect = geom.rectangle(pt1, pt2); | |
| 1034 if (clickRect.getArea() <= 5) { | |
| 1035 return false; | |
| 1036 } | |
| 1037 // hide zoom div | |
| 1038 $zoomDiv.remove(); | |
| 1039 // unregister events | |
| 1040 $elem.unbind("mousemove.digilib", zoomMove); | |
| 1041 $elem.unbind("mouseup.digilib", zoomEnd); | |
| 1042 // clip and transform | |
| 1043 clickRect.clipTo(picRect); | |
| 1044 var area = data.imgTrafo.invtransform(clickRect); | |
| 1045 data.zoomArea = area; | |
| 1046 // zoomed is always fit | |
| 1047 data.settings.ws = 1; | |
| 1048 redisplay(data); | |
| 1049 return false; | |
| 1050 }; | |
| 661 | 1051 |
| 647 | 1052 // mouse move handler |
| 1053 var zoomMove = function (evt) { | |
| 1054 pt2 = geom.position(evt); | |
| 1055 var rect = geom.rectangle(pt1, pt2); | |
| 1056 rect.clipTo(picRect); | |
| 1057 // update zoom div | |
|
665
0d3d9517e448
image transform works now under rotation!!! (at least for multiples of 90deg)
robcast
parents:
664
diff
changeset
|
1058 rect.adjustDiv($zoomDiv); |
| 647 | 1059 return false; |
| 1060 }; | |
| 661 | 1061 |
| 647 | 1062 // bind start zoom handler |
| 1063 $scaler.one('mousedown.digilib', zoomStart); | |
| 1064 }; | |
| 640 | 1065 |
|
671
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diff
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|
1066 var birdZoom = function(data) { |
|
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670
diff
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|
1067 var $birdImg = data.$birdImg; |
|
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670
diff
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|
1068 var $birdZoom = data.$birdZoom; |
|
ba582354e659
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diff
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|
1069 var startPos, newRect, birdImgRect, birdZoomRect; |
|
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diff
changeset
|
1070 |
|
ba582354e659
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diff
changeset
|
1071 var birdZoomMove = function(evt) { |
|
ba582354e659
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670
diff
changeset
|
1072 // mousemove handler: drag |
|
ba582354e659
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670
diff
changeset
|
1073 var pos = geom.position(evt); |
|
ba582354e659
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670
diff
changeset
|
1074 var dx = pos.x - startPos.x; |
|
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parents:
670
diff
changeset
|
1075 var dy = pos.y - startPos.y; |
|
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670
diff
changeset
|
1076 // move birdZoom div, keeping size |
|
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670
diff
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|
1077 newRect = geom.rectangle( |
|
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670
diff
changeset
|
1078 birdZoomRect.x + dx, |
|
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670
diff
changeset
|
1079 birdZoomRect.y + dy, |
|
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diff
changeset
|
1080 birdZoomRect.width, |
|
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diff
changeset
|
1081 birdZoomRect.height |
|
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diff
changeset
|
1082 ); |
|
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diff
changeset
|
1083 // stay within birdimage |
|
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diff
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|
1084 newRect.stayInside(birdImgRect); |
|
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diff
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|
1085 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
|
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diff
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|
1086 // $birdZoom.show(); |
|
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diff
changeset
|
1087 return false; |
|
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diff
changeset
|
1088 }; |
|
ba582354e659
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diff
changeset
|
1089 |
|
ba582354e659
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diff
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|
1090 var birdZoomEndDrag = function(evt) { |
|
ba582354e659
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diff
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|
1091 // mouseup handler: reload page |
|
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|
1092 var settings = data.settings; |
| 673 | 1093 $(document).unbind("mousemove.digilib", birdZoomMove); |
| 1094 $(document).unbind("mouseup.digilib", birdZoomEndDrag); | |
| 1095 $birdZoom.unbind("mousemove.digilib", birdZoomMove); | |
| 1096 $birdZoom.unbind("mouseup.digilib", birdZoomEndDrag); | |
|
671
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diff
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|
1097 if (newRect == null) { // no movement happened |
|
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670
diff
changeset
|
1098 startPos = birdZoomRect.getCenter(); |
|
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diff
changeset
|
1099 birdZoomMove(evt); // set center to click position |
|
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diff
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|
1100 }; |
|
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diff
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|
1101 if (data.zoomArea) { |
| 672 | 1102 // should always be true |
| 1103 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
| 1104 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
| 1105 data.zoomArea.x = x; | |
| 1106 data.zoomArea.y = y; | |
|
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diff
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|
1107 }; |
|
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diff
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|
1108 settings.ws = 1; // zoomed is always fit |
|
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diff
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|
1109 redisplay(data); |
|
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diff
changeset
|
1110 return false; |
|
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diff
changeset
|
1111 }; |
|
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|
1112 |
|
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|
1113 var birdZoomStartDrag = function(evt) { |
|
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diff
changeset
|
1114 // mousedown handler: start dragging bird zoom to a new position |
|
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diff
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|
1115 startPos = geom.position(evt); |
|
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diff
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|
1116 birdImgRect = geom.rectangle($birdImg); |
|
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diff
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|
1117 birdZoomRect = geom.rectangle($birdZoom); |
| 673 | 1118 $(document).bind("mousemove.digilib", birdZoomMove); |
| 1119 $(document).bind("mouseup.digilib", birdZoomEndDrag); | |
| 1120 $birdZoom.bind("mousemove.digilib", birdZoomMove); | |
| 1121 $birdZoom.bind("mouseup.digilib", birdZoomEndDrag); | |
|
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|
1122 return false; |
|
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|
1123 }; |
|
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diff
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|
1124 |
| 674 | 1125 $birdImg.bind("mousedown.digilib", birdZoomStartDrag); |
| 1126 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag); | |
|
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|
1127 }; |
|
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|
1128 |
| 643 | 1129 // sets a key to a value (relative values with +/- if relative=true) |
| 1130 var setNumValue = function(settings, key, value) { | |
| 1131 if (isNumber(value)) return settings[key] = value; | |
| 1132 var sign = value.substring(0,1); | |
| 1133 if (sign === '+' || sign === '-') { | |
| 1134 if (settings[key] == null) { | |
|
644
bffc7d8c3641
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robcast
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643
diff
changeset
|
1135 // this isn't perfect but still... |
| 643 | 1136 settings[key] = 0; |
| 1137 } | |
| 1138 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
| 1139 } else { | |
| 1140 settings[key] = value; | |
| 1141 } | |
| 1142 return settings[key]; | |
| 1143 }; | |
| 648 | 1144 |
| 1145 // auxiliary function (from old dllib.js) | |
| 652 | 1146 isFullArea = function(area) { |
| 1147 return (area.width === 1.0) && (area.height === 1.0); | |
| 648 | 1148 }; |
| 1149 | |
| 634 | 1150 // auxiliary function (from Douglas Crockford, A.10) |
| 1151 var isNumber = function isNumber(value) { | |
| 1152 return typeof value === 'number' && isFinite(value); | |
| 1153 }; | |
| 648 | 1154 |
| 624 | 1155 // auxiliary function to crop senseless precision |
| 1156 var cropFloat = function (x) { | |
| 630 | 1157 return parseInt(10000 * x, 10) / 10000; |
| 624 | 1158 }; |
| 648 | 1159 |
| 598 | 1160 // hook plugin into jquery |
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1161 $.fn.digilib = function(action) { |
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1162 if (actions[action]) { |
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1163 // call action on this with the remaining arguments (inserting data as first argument) |
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1164 var $elem = $(this); |
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1165 var data = $elem.data('digilib'); |
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1166 var args = Array.prototype.slice.call(arguments, 1); |
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1167 args.unshift(data); |
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1168 return actions[action].apply(this, args); |
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1169 } else if (typeof(action) === 'object' || !action) { |
| 627 | 1170 // call init on this |
|
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1171 return actions.init.apply(this, arguments); |
| 598 | 1172 } else { |
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1173 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
| 598 | 1174 } |
| 1175 }; | |
| 681 | 1176 |
| 597 | 1177 })(jQuery); |