Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 680:d18b4170182f jquery
fix zoom bug introduced with last change
| author | hertzhaft |
|---|---|
| date | Wed, 26 Jan 2011 20:37:45 +0100 |
| parents | 95f531b91fe7 |
| children | 0583d0a38de5 33a4ac6b0b48 |
| 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 : { | |
| 92 onclick : "javascript:resetImage()", | |
| 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"], | |
| 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","options"], | |
| 212 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","options"], | |
| 675 | 213 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 214 }, |
| 215 'embedded' : { | |
| 216 'imagePath' : 'img/embedded/16/', | |
| 217 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","scale","bird","help","options"], | |
| 218 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","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'); | |
| 268 var elemSettings; | |
| 269 // if the plugin hasn't been initialized yet | |
| 270 if (!data) { | |
| 271 // merge query parameters | |
| 272 if (isFullscreen) { | |
| 273 elemSettings = $.extend({}, settings, queryParams); | |
| 274 } else { | |
| 275 elemSettings = $.extend({}, settings, parseImgParams($elem)); | |
| 597 | 276 } |
| 661 | 277 // store $(this) element in the settings |
| 278 data = { | |
| 279 $elem : $elem, | |
| 280 settings : elemSettings, | |
| 281 queryParams : queryParams | |
| 282 }; | |
| 283 // store in data element | |
| 284 $elem.data('digilib', data); | |
| 285 } | |
| 286 unpackParams(data); | |
| 675 | 287 // create HTML structure for scaler |
| 661 | 288 setupScalerDiv(data); |
| 675 | 289 // HTML for buttons (default is first button set) |
| 290 setupButtons(data, 0); | |
| 661 | 291 // bird's eye view creation |
| 292 if (elemSettings.isBirdDivVisible) { | |
| 631 | 293 setupBirdDiv(data); |
| 294 } | |
| 661 | 295 // about window creation - TODO: could be deferred? restrict to only one item? |
| 296 setupAboutDiv(data); | |
| 297 }); | |
| 298 }, | |
| 299 | |
| 300 // destroy: clean up digilib | |
| 301 destroy : function(data) { | |
| 302 return this.each(function(){ | |
| 303 var $elem = $(this); | |
| 304 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
| 305 data.digilib.remove(); | |
| 306 $elem.removeData('digilib'); | |
| 307 }); | |
| 308 }, | |
| 309 | |
| 310 // show or hide the 'about' window | |
| 311 showAboutDiv : function(data, show) { | |
| 312 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
| 313 }, | |
| 648 | 314 |
| 661 | 315 // event handler: toggles the visibility of the bird's eye window |
| 316 showBirdDiv : function (data, show) { | |
| 317 if (data.$birdDiv == null) { | |
| 318 // no bird div -> create | |
| 319 setupBirdDiv(data); | |
| 320 } | |
| 321 // TODO: keep bird view visible after reload (parameter, cookie?) | |
| 322 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
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323 data.$birdImg.triggerHandler('load'); |
| 661 | 324 }, |
| 325 | |
| 326 // goto given page nr (+/-: relative) | |
| 327 gotoPage : function (data, pageNr) { | |
| 328 var settings = data.settings; | |
| 329 var oldpn = settings.pn; | |
| 330 var pn = setNumValue(settings, "pn", pageNr); | |
| 331 if (pn == null) return false; // nothing happened | |
| 332 if (pn < 1) { | |
| 333 alert("no such page (page number too low)"); | |
| 334 settings.pn = oldpn; | |
| 335 return false; | |
| 336 } | |
| 337 if (settings.pt) { | |
| 338 if (pn > settings.pt) { | |
| 339 alert("no such page (page number too high)"); | |
| 616 | 340 settings.pn = oldpn; |
| 341 return false; | |
| 627 | 342 } |
| 661 | 343 } |
| 344 // reset mk and others(?) | |
| 345 data.marks = []; | |
| 346 data.zoomArea = MAX_ZOOMAREA; | |
| 347 // then reload | |
| 348 redisplay(data); | |
| 349 }, | |
| 647 | 350 |
| 661 | 351 // zoom by a given factor |
| 352 zoomBy : function (data, factor) { | |
| 353 zoomBy(data, factor); | |
| 354 }, | |
| 640 | 355 |
| 661 | 356 // zoom interactively |
| 357 zoomArea : function (data) { | |
| 358 zoomArea(data); | |
| 359 }, | |
| 643 | 360 |
| 661 | 361 // zoom out to full page |
| 362 zoomFull : function (data, mode) { | |
| 363 data.zoomArea = MAX_ZOOMAREA; | |
| 364 if (mode === 'width') { | |
| 365 data.dlOpts.fitwidth = 1; | |
| 366 delete data.dlOpts.fitheight; | |
| 367 } else if (mode === 'height') { | |
| 368 data.dlOpts.fitheight = 1; | |
| 369 delete data.dlOpts.fitwidth; | |
| 370 } else { | |
| 371 delete data.dlOpts.fitwidth; | |
| 372 delete data.dlOpts.fitheight; | |
| 373 } | |
| 374 redisplay(data); | |
| 375 }, | |
| 376 | |
| 377 // set a mark by clicking (or giving a position) | |
| 378 setMark : function (data, mpos) { | |
| 379 if (mpos == null) { | |
| 380 // interactive | |
| 381 setMark(data); | |
| 382 } else { | |
| 383 // use position | |
| 384 data.marks.push(pos); | |
| 656 | 385 redisplay(data); |
| 597 | 386 } |
| 661 | 387 }, |
| 388 | |
| 389 // remove the last mark | |
| 390 removeMark : function (data) { | |
| 391 data.marks.pop(); | |
| 392 redisplay(data); | |
| 393 }, | |
| 394 | |
| 395 // mirror the image | |
| 396 mirror : function (data, mode) { | |
| 397 var flags = data.scalerFlags; | |
| 398 if (mode === 'h') { | |
| 399 if (flags.hmir) { | |
| 400 delete flags.hmir; | |
| 401 } else { | |
| 402 flags.hmir = 1; | |
| 403 } | |
| 404 } else { | |
| 405 if (flags.vmir) { | |
| 406 delete flags.vmir; | |
| 407 } else { | |
| 408 flags.vmir = 1; | |
| 409 } | |
| 410 } | |
| 411 redisplay(data); | |
| 412 }, | |
| 643 | 413 |
| 661 | 414 // rotate the image |
| 415 rotate : function (data, angle) { | |
| 416 var rot = data.settings.rot; | |
| 417 if (angle == null) { | |
| 418 angle = window.prompt("Rotation angle:", rot); | |
| 419 } | |
| 420 data.settings.rot = angle; | |
| 421 redisplay(data); | |
| 422 }, | |
| 423 | |
| 424 // change brightness | |
| 425 brightness : function (data, factor) { | |
| 426 var brgt = data.settings.brgt; | |
| 427 if (factor == null) { | |
| 428 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 429 } | |
| 430 data.settings.brgt = factor; | |
| 431 redisplay(data); | |
| 432 }, | |
| 433 | |
| 434 // change contrast | |
| 435 contrast : function (data, factor) { | |
| 436 var cont = data.settings.cont; | |
| 437 if (factor == null) { | |
| 438 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 439 } | |
| 440 data.settings.cont = factor; | |
| 441 redisplay(data); | |
| 442 } | |
| 598 | 443 }; |
| 597 | 444 |
| 601 | 445 // returns parameters from page url |
| 600 | 446 var parseQueryParams = function() { |
| 629 | 447 return parseQueryString(window.location.search.slice(1)); |
| 448 }; | |
| 648 | 449 |
| 629 | 450 // returns parameters from embedded img-element |
| 600 | 451 var parseImgParams = function($elem) { |
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452 var src = $elem.find('img').first().attr('src'); |
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453 if (!src) { |
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454 return null; |
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455 } |
| 600 | 456 var pos = src.indexOf('?'); |
| 457 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 458 var scalerUrl = src.substring(0, pos); | |
| 620 | 459 var params = parseQueryString(query); |
| 460 params.scalerBaseUrl = scalerUrl; | |
| 461 return params; | |
| 629 | 462 }; |
| 600 | 463 |
| 601 | 464 // parses query parameter string into parameter object |
| 600 | 465 var parseQueryString = function(query) { |
| 466 var pairs = query.split("&"); | |
| 620 | 467 var params = {}; |
| 629 | 468 //var keys = []; |
| 600 | 469 for (var i = 0; i < pairs.length; i++) { |
| 470 var pair = pairs[i].split("="); | |
| 471 if (pair.length === 2) { | |
| 620 | 472 params[pair[0]] = pair[1]; |
| 629 | 473 //keys.push(pair[0]); |
| 627 | 474 } |
| 629 | 475 } |
| 620 | 476 return params; |
| 629 | 477 }; |
| 661 | 478 |
| 636 | 479 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 480 var getParamString = function (settings, keys, defaults) { | |
| 608 | 481 var paramString = ''; |
| 643 | 482 var nx = false; |
| 608 | 483 for (i = 0; i < keys.length; ++i) { |
| 484 var key = keys[i]; | |
| 656 | 485 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 608 | 486 // first param gets no '&' |
| 643 | 487 if (nx) { |
| 488 paramString += '&'; | |
| 489 } else { | |
| 490 nx = true; | |
| 491 } | |
| 608 | 492 // add parm=val |
| 493 paramString += key + '=' + settings[key]; | |
| 636 | 494 } |
| 608 | 495 } |
| 496 return paramString; | |
| 624 | 497 }; |
| 498 | |
| 629 | 499 // returns URL and query string for Scaler |
| 500 var getScalerUrl = function (data) { | |
| 646 | 501 var settings = data.settings; |
| 645 | 502 if (settings.scalerBaseUrl == null) { |
| 503 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
| 504 } | |
| 658 | 505 packParams(data); |
| 629 | 506 var keys = settings.scalerParamNames; |
| 636 | 507 var queryString = getParamString(settings, keys, defaults); |
| 629 | 508 var url = settings.scalerBaseUrl + '?' + queryString; |
| 509 return url; | |
| 510 }; | |
| 511 | |
| 512 // returns URL and query string for current digilib | |
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513 var getDigilibUrl = function (data) { |
| 636 | 514 packParams(data); |
| 629 | 515 var settings = data.settings; |
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516 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 629 | 517 var url = window.location.toString(); |
| 518 var pos = url.indexOf('?'); | |
| 519 var baseUrl = url.substring(0, pos); | |
| 520 var newurl = baseUrl + '?' + queryString; | |
| 521 return newurl; | |
| 522 }; | |
| 523 | |
| 648 | 524 // processes some parameters into objects and stuff |
| 624 | 525 var unpackParams = function (data) { |
| 526 var settings = data.settings; | |
| 629 | 527 // zoom area |
| 624 | 528 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 636 | 529 data.zoomArea = zoomArea; |
| 629 | 530 // marks |
| 624 | 531 var marks = []; |
| 643 | 532 if (settings.mk) { |
| 533 var mk = settings.mk; | |
| 534 if (mk.indexOf(";") >= 0) { | |
| 535 var pa = mk.split(";"); // old format with ";" | |
| 536 } else { | |
| 537 var pa = mk.split(","); // new format | |
| 538 } | |
| 539 for (var i = 0; i < pa.length ; i++) { | |
| 540 var pos = pa[i].split("/"); | |
| 541 if (pos.length > 1) { | |
| 542 marks.push(geom.position(pos[0], pos[1])); | |
| 543 } | |
| 626 | 544 } |
| 624 | 545 } |
| 636 | 546 data.marks = marks; |
| 643 | 547 // mo (Scaler flags) |
| 548 var flags = {}; | |
| 549 if (settings.mo) { | |
| 550 var pa = settings.mo.split(","); | |
| 551 for (var i = 0; i < pa.length ; i++) { | |
| 552 flags[pa[i]] = pa[i]; | |
| 553 } | |
| 554 } | |
| 555 data.scalerFlags = flags; | |
| 556 // clop (digilib options) | |
| 557 var opts = {}; | |
| 558 if (settings.clop) { | |
| 559 var pa = settings.clop.split(","); | |
| 560 for (var i = 0; i < pa.length ; i++) { | |
| 561 opts[pa[i]] = pa[i]; | |
| 562 } | |
| 563 } | |
| 564 data.dlOpts = opts; | |
| 654 | 565 // birdview option |
| 566 if (opts.birdview) { | |
| 567 settings.isBirdDivVisible = 1; | |
| 568 } | |
| 648 | 569 }; |
| 570 | |
| 624 | 571 // put objects back into parameters |
| 572 var packParams = function (data) { | |
| 573 var settings = data.settings; | |
| 629 | 574 // zoom area |
| 636 | 575 if (data.zoomArea) { |
| 640 | 576 settings.wx = cropFloat(data.zoomArea.x); |
| 577 settings.wy = cropFloat(data.zoomArea.y); | |
| 578 settings.ww = cropFloat(data.zoomArea.width); | |
| 579 settings.wh = cropFloat(data.zoomArea.height); | |
| 624 | 580 } |
| 629 | 581 // marks |
| 636 | 582 if (data.marks) { |
| 643 | 583 settings.mk = ''; |
| 636 | 584 for (var i = 0; i < data.marks.length; i++) { |
| 643 | 585 if (i) { |
| 586 settings.mk += ','; | |
| 587 } | |
| 588 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
| 624 | 589 } |
| 643 | 590 } |
| 591 // Scaler flags | |
| 592 if (data.scalerFlags) { | |
| 593 var mo = ''; | |
| 594 for (var f in data.scalerFlags) { | |
| 595 if (mo) { | |
| 596 mo += ','; | |
| 597 } | |
| 598 mo += f; | |
| 599 } | |
| 600 settings.mo = mo; | |
| 601 } | |
| 654 | 602 // digilib option birdview |
| 603 if (settings.isBirdDivVisible) { | |
| 604 data.dlOpts.birdview = 1; | |
| 655 | 605 } else { |
| 606 delete data.dlOpts.birdview; | |
| 654 | 607 } |
| 643 | 608 // digilib options |
| 609 if (data.dlOpts) { | |
| 610 var clop = ''; | |
| 611 for (var o in data.dlOpts) { | |
| 612 if (clop) { | |
| 613 clop += ','; | |
| 614 } | |
| 615 clop += o; | |
| 616 } | |
| 617 settings.clop = clop; | |
| 624 | 618 } |
| 619 }; | |
| 648 | 620 |
| 615 | 621 // (re)load the img from a new scaler URL |
|
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622 var redisplay = function (data) { |
| 629 | 623 var settings = data.settings; |
| 624 if (settings.interactionMode === 'fullscreen') { | |
| 625 // update location.href (browser URL) in fullscreen mode | |
|
637
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626 var url = getDigilibUrl(data); |
| 629 | 627 var history = window.history; |
| 628 if (typeof(history.pushState) === 'function') { | |
| 629 console.debug("we could modify history, but we don't..."); | |
| 630 } | |
| 631 window.location = url; | |
| 632 } else { | |
| 633 // embedded mode -- just change img src | |
| 634 var url = getScalerUrl(data); | |
| 635 data.$img.attr('src', url); | |
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636 // and update bird's eye view |
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637 //if (settings.isBirdDivVisible) { |
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638 // renderBirdZoom(data); |
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639 //} |
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640 }; |
| 615 | 641 }; |
| 642 | |
| 655 | 643 // returns maximum size for scaler img in fullscreen mode |
| 644 var getFullscreenImgSize = function($elem) { | |
| 645 var $win = $(window); | |
| 646 var winH = $win.height(); | |
| 647 var winW = $win.width(); | |
| 648 // TODO: account for borders? | |
| 649 return geom.size(winW, winH); | |
| 650 }; | |
| 651 | |
| 601 | 652 // creates HTML structure for digilib in elem |
| 620 | 653 var setupScalerDiv = function (data) { |
| 654 var settings = data.settings; | |
| 640 | 655 var $elem = data.$elem; |
| 679 | 656 var $img, scalerUrl; |
| 657 // fullscreen | |
| 601 | 658 if (settings.interactionMode === 'fullscreen') { |
| 602 | 659 var imgSize = getFullscreenImgSize($elem); |
| 643 | 660 // fitwidth/height omits destination height/width |
| 661 if (data.dlOpts['fitheight'] == null) { | |
| 662 settings.dw = imgSize.width; | |
| 679 | 663 }; |
| 643 | 664 if (data.dlOpts['fitwidth'] == null) { |
| 665 settings.dh = imgSize.height; | |
| 679 | 666 }; |
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667 $img = $('<img/>'); |
| 679 | 668 scalerUrl = getScalerUrl(data); |
| 669 // embedded mode -- try to keep img tag | |
| 602 | 670 } else { |
| 616 | 671 $img = $elem.find('img'); |
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672 if ($img.length > 0) { |
| 679 | 673 console.debug("img detach:", $img); |
| 674 scalerUrl = $img.attr('src'); | |
|
606
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675 $img.detach(); |
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676 } else { |
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677 $img = $('<img/>'); |
| 679 | 678 scalerUrl = getScalerUrl(data); |
| 679 }; | |
| 601 | 680 } |
|
606
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681 // create new html |
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682 $elem.empty(); // TODO: should we keep stuff for customization? |
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683 var $scaler = $('<div class="scaler"/>'); |
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684 $elem.append($scaler); |
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685 $scaler.append($img); |
| 615 | 686 $img.addClass('pic'); |
| 642 | 687 data.$scaler = $scaler; |
| 629 | 688 data.$img = $img; |
| 680 | 689 // setup image load handler before setting the src attribute (IE bug) |
| 690 $img.load(scalerImgLoadedHandler(data)); | |
| 691 $img.attr('src', scalerUrl); | |
| 601 | 692 }; |
| 608 | 693 |
| 603 | 694 // creates HTML structure for buttons in elem |
| 675 | 695 var setupButtons = function (data, buttonSetIdx) { |
| 640 | 696 var $elem = data.$elem; |
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697 var settings = data.settings; |
| 658 | 698 var $buttonsDiv = $('<div class="buttons"></div>'); |
| 699 $elem.append($buttonsDiv); | |
| 700 var mode = settings.interactionMode; | |
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701 var buttonSettings = settings.buttonSettings[mode]; |
| 675 | 702 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
| 703 var buttonNames = buttonSettings[buttonGroup]; | |
| 704 for (var i = 0; i < buttonNames.length; i++) { | |
| 705 var buttonName = buttonNames[i]; | |
| 706 var buttonConfig = settings.buttons[buttonName]; | |
| 658 | 707 // construct the button html |
| 708 var $button = $('<div class="button"></div>'); | |
| 709 var $a = $('<a/>'); | |
| 710 var $img = $('<img class="button"/>'); | |
| 711 $buttonsDiv.append($button); | |
| 712 $button.append($a); | |
| 713 $a.append($img); | |
| 714 // add attributes and bindings | |
| 715 $button.attr('title', buttonConfig.tooltip); | |
| 675 | 716 $button.addClass('button-' + buttonName); |
| 658 | 717 // create handler for the buttons |
| 718 $a.bind('click.digilib', (function () { | |
| 719 // we create a new closure to capture the value of action | |
| 720 var action = buttonConfig.onclick; | |
| 721 if ($.isArray(action)) { | |
| 722 // the handler function calls digilib with action and parameters | |
| 723 return function (evt) { | |
| 724 console.debug('click action=', action, ' evt=', evt); | |
| 725 $elem.digilib.apply($elem, action); | |
| 726 return false; | |
| 727 }; | |
| 728 } else { | |
| 729 // the handler function calls digilib with action | |
| 730 return function (evt) { | |
| 731 console.debug('click action=', action, ' evt=', evt); | |
| 732 $elem.digilib(action); | |
| 733 return false; | |
| 734 }; | |
| 735 } | |
| 736 })()); | |
| 737 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
| 630 | 738 } |
| 655 | 739 // make buttons div scroll if too large for window |
| 740 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 741 $buttonsDiv.css('position', 'absolute'); | |
| 742 } | |
| 675 | 743 if (data.$buttonSets == null) { |
| 744 data.$buttonSets = [$buttonsDiv]; | |
| 745 data.visibleButtonSets = 1; | |
| 746 } else { | |
| 747 data.$buttonSets[buttonSetIdx] = $buttonsDiv; | |
| 748 } | |
| 605 | 749 return $buttonsDiv; |
| 603 | 750 }; |
| 608 | 751 |
| 752 // creates HTML structure for the bird's eye view in elem | |
| 631 | 753 var setupBirdDiv = function (data) { |
| 640 | 754 var $elem = data.$elem; |
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755 var settings = data.settings; |
| 608 | 756 // use only the relevant parameters |
| 757 var keys = ['fn','pn','dw','dh']; | |
| 667 | 758 var birdDivOptions = { |
| 759 dw : settings.birdDivWidth, | |
| 760 dh : settings.birdDivHeight | |
| 761 }; | |
| 762 var birdSettings = $.extend({}, settings, birdDivOptions); | |
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763 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
| 608 | 764 // the bird's eye div |
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765 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 608 | 766 // the detail indicator frame |
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767 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
| 608 | 768 // the small image |
| 769 var $birdImg = $('<img class="birdimg"/>'); | |
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770 $elem.append($birdDiv); |
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771 $birdDiv.append($birdZoom); |
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772 $birdDiv.append($birdImg); |
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773 $birdZoom.css(data.settings.birdIndicatorStyle); |
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774 data.$birdDiv = $birdDiv; |
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775 data.$birdZoom = $birdZoom; |
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776 data.$birdImg = $birdImg; |
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777 $birdImg.load(birdImgLoadedHandler(data)); |
| 608 | 778 $birdImg.attr('src', birdUrl); |
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779 if (data.settings.isBirdDivVisible) { |
| 680 | 780 $birdDiv.show(); |
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781 }; |
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782 birdZoom(data); |
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783 }; |
| 608 | 784 |
| 618 | 785 // creates HTML structure for the about view in elem |
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786 var setupAboutDiv = function (data) { |
| 640 | 787 var $elem = data.$elem; |
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788 var settings = data.settings; |
| 618 | 789 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 609 | 790 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 791 var $link = $('<a/>'); | |
| 792 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 793 var $content = $('<p/>'); | |
| 794 $elem.append($aboutDiv); | |
| 795 $aboutDiv.append($header); | |
| 796 $aboutDiv.append($link); | |
| 797 $aboutDiv.append($content); | |
| 798 $link.append($logo); | |
| 799 $logo.attr('src', settings.logoUrl); | |
| 628 | 800 $link.attr('href', settings.homeUrl); |
| 609 | 801 $content.text('Version: ' + settings.version); |
| 628 | 802 // click hides |
| 642 | 803 $aboutDiv.bind('click.digilib', function () { |
| 639 | 804 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 642 | 805 return false; |
| 806 }); | |
| 628 | 807 data.$aboutDiv = $aboutDiv; |
| 627 | 808 }; |
| 809 | |
| 628 | 810 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 811 var showDiv = function (isVisible, $div, show) { | |
| 638 | 812 if (show == null) { |
| 628 | 813 // toggle visibility |
| 814 isVisible = !isVisible; | |
| 815 } else { | |
| 816 // set visibility | |
| 817 isVisible = show; | |
| 818 } | |
| 819 if (isVisible) { | |
| 820 $div.fadeIn(); | |
| 821 } else { | |
| 822 $div.fadeOut(); | |
| 823 } | |
| 824 return isVisible; | |
| 627 | 825 }; |
| 609 | 826 |
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827 // create Transform from area and $img |
| 668 | 828 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
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829 var picrect = geom.rectangle($img); |
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830 var trafo = geom.transform(); |
| 668 | 831 // move zoom area offset to center |
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832 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 668 | 833 // scale zoom area size to [1,1] |
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834 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 668 | 835 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 836 if (rot || hmir || vmir) { | |
| 837 // move [0.5,0.5] to center | |
| 838 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 839 if (hmir) { | |
| 840 // mirror about center | |
| 841 trafo.concat(trafo.getMirror('y')); | |
| 842 } | |
| 843 if (vmir) { | |
| 844 // mirror about center | |
| 845 trafo.concat(trafo.getMirror('x')); | |
| 846 } | |
| 847 if (rot) { | |
| 848 // rotate around center | |
| 849 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
| 850 } | |
| 851 // move back | |
| 852 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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853 } |
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854 // scale to screen position and size |
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855 trafo.concat(trafo.getScale(picrect)); |
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856 trafo.concat(trafo.getTranslation(picrect)); |
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857 return trafo; |
| 648 | 858 }; |
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859 |
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860 // returns function for load event of scaler img |
| 629 | 861 var scalerImgLoadedHandler = function (data) { |
| 862 var $img = data.$img; | |
| 626 | 863 return function () { |
| 620 | 864 console.debug("img loaded! this=", this, " data=", data); |
| 865 // create Transform from current area and picsize | |
| 668 | 866 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
| 867 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
| 679 | 868 console.debug("imgTrafo=", data.imgTrafo); |
| 620 | 869 // display marks |
| 626 | 870 renderMarks(data); |
| 620 | 871 //digilib.showArrows(); // show arrow overlays for zoom navigation |
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872 var $birdImg = data.$birdImg; |
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873 if ($birdImg) { |
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874 $birdImg.triggerHandler('load'); |
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875 }; |
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876 }; |
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877 }; |
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878 |
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879 // returns function for load event of bird's eye view img |
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880 var birdImgLoadedHandler = function (data) { |
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881 var $img = data.$birdImg; |
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|
882 return function () { |
|
670
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diff
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|
883 console.debug("birdimg loaded! this=", this, " data=", data); |
|
651
2d85d820501d
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|
884 // create Transform from current area and picsize |
|
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|
885 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
| 661 | 886 // display red indicator around zoomarea |
|
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887 renderbirdZoom(data); |
|
606
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keeping img tag for embedded mode seems to work now
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|
888 }; |
|
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|
889 }; |
| 626 | 890 |
| 891 // place marks on the image | |
| 892 var renderMarks = function (data) { | |
| 640 | 893 var $elem = data.$elem; |
| 636 | 894 var marks = data.marks; |
| 642 | 895 // TODO: clear marks first(?) |
| 626 | 896 for (var i = 0; i < marks.length; i++) { |
| 897 var mark = marks[i]; | |
| 636 | 898 if (data.zoomArea.containsPosition(mark)) { |
| 626 | 899 var mpos = data.imgTrafo.transform(mark); |
|
657
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|
900 console.debug("renderMarks: mpos=",mpos); |
| 626 | 901 // create mark |
| 902 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 903 var $mark = $(html); | |
| 904 $elem.append($mark); | |
| 647 | 905 $mark.offset({left : mpos.x, top : mpos.y}); |
| 626 | 906 } |
| 907 } | |
| 908 }; | |
| 648 | 909 |
|
670
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|
910 // show zoom area indicator on bird's eye view |
|
671
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|
911 var renderbirdZoom = function (data) { |
|
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912 var $birdZoom = data.$birdZoom; |
| 652 | 913 var zoomArea = data.zoomArea; |
| 914 var indRect = data.birdTrafo.transform(zoomArea); | |
|
663
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|
915 var coords = { |
|
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|
916 left : indRect.x-2, // acount for frame width |
|
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|
917 top : indRect.y-2, |
|
fda2d9bd9ba7
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|
918 width : indRect.width, |
|
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|
919 height: indRect.height |
|
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|
920 }; |
|
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|
921 var normalSize = isFullArea(zoomArea); |
|
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|
922 if (data.settings.interactionMode === 'fullscreen') { |
|
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|
923 // no animation for fullscreen |
|
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924 if (normalSize) return $birdZoom.hide(); |
|
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|
925 $birdZoom.width(coords.width); |
|
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|
926 $birdZoom.height(coords.height); |
|
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|
927 $birdZoom.offset(coords); |
|
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|
928 $birdZoom.show(); |
|
663
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|
929 return; |
|
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|
930 }; |
|
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|
931 // nice animation for embedded mode :-) |
|
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|
932 var makeCompleteFunction = function($birdZoom, normalSize) { |
|
663
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|
933 return function() { |
|
671
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|
934 if (normalSize) $birdZoom.hide(); |
|
665
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|
935 }; |
|
663
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|
936 }; |
|
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|
937 var opts = { |
|
671
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|
938 'complete' : makeCompleteFunction($birdZoom, normalSize) |
|
663
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|
939 }; |
|
671
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|
940 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
|
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|
941 $birdZoom.animate(coords, opts); |
|
657
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diff
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|
942 }; |
| 652 | 943 |
| 640 | 944 // zooms by the given factor |
| 636 | 945 var zoomBy = function(data, factor) { |
| 946 var area = data.zoomArea; | |
| 947 var newarea = area.copy(); | |
| 948 // scale | |
| 949 newarea.width /= factor; | |
| 950 newarea.height /= factor; | |
| 951 // and recenter | |
| 952 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 953 newarea.y -= 0.5 * (newarea.height - area.height); | |
| 954 newarea = MAX_ZOOMAREA.fit(newarea); | |
| 955 data.zoomArea = newarea; | |
|
637
71cc855e2e4b
reload doesn't take list of changed parameters any more
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|
956 redisplay(data); |
| 636 | 957 }; |
| 958 | |
| 640 | 959 // add a mark where clicked |
| 960 var setMark = function (data) { | |
| 642 | 961 var $scaler = data.$scaler; |
| 640 | 962 // start event capturing |
| 642 | 963 $scaler.one('click.digilib', function (evt) { |
| 640 | 964 // event handler adding a new mark |
|
665
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|
965 var mpos = geom.position(evt); |
| 640 | 966 var pos = data.imgTrafo.invtransform(mpos); |
| 967 data.marks.push(pos); | |
| 968 redisplay(data); | |
| 642 | 969 return false; // do we even get here? |
| 640 | 970 }); |
| 971 }; | |
| 661 | 972 |
| 647 | 973 var zoomArea = function(data) { |
| 974 $elem = data.$elem; | |
| 975 $scaler = data.$scaler; | |
| 976 var pt1, pt2; | |
| 977 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 978 $elem.append($zoomDiv); | |
| 661 | 979 $zoomDiv.css(data.settings.zoomrectStyle); |
| 647 | 980 var picRect = geom.rectangle($scaler); |
| 981 // FIX ME: is there a way to query the border width from CSS info? | |
| 982 // rect.x -= 2; // account for overlay borders | |
| 983 // rect.y -= 2; | |
| 984 | |
| 985 var zoomStart = function (evt) { | |
| 986 pt1 = geom.position(evt); | |
| 987 // setup and show zoom div | |
| 988 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
| 989 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
| 661 | 990 $zoomDiv.width(0).height(0); |
| 647 | 991 $zoomDiv.show(); |
| 992 // register events | |
| 993 $elem.bind("mousemove.digilib", zoomMove); | |
| 994 $elem.bind("mouseup.digilib", zoomEnd); | |
| 995 return false; | |
| 996 }; | |
| 661 | 997 |
| 647 | 998 // mouseup handler: end moving |
| 999 var zoomEnd = function (evt) { | |
| 1000 pt2 = geom.position(evt); | |
| 1001 // assume a click and continue if the area is too small | |
| 1002 var clickRect = geom.rectangle(pt1, pt2); | |
| 1003 if (clickRect.getArea() <= 5) { | |
| 1004 return false; | |
| 1005 } | |
| 1006 // hide zoom div | |
| 1007 $zoomDiv.remove(); | |
| 1008 // unregister events | |
| 1009 $elem.unbind("mousemove.digilib", zoomMove); | |
| 1010 $elem.unbind("mouseup.digilib", zoomEnd); | |
| 1011 // clip and transform | |
| 1012 clickRect.clipTo(picRect); | |
| 1013 var area = data.imgTrafo.invtransform(clickRect); | |
| 1014 data.zoomArea = area; | |
| 1015 // zoomed is always fit | |
| 1016 data.settings.ws = 1; | |
| 1017 redisplay(data); | |
| 1018 return false; | |
| 1019 }; | |
| 661 | 1020 |
| 647 | 1021 // mouse move handler |
| 1022 var zoomMove = function (evt) { | |
| 1023 pt2 = geom.position(evt); | |
| 1024 var rect = geom.rectangle(pt1, pt2); | |
| 1025 rect.clipTo(picRect); | |
| 1026 // update zoom div | |
|
665
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664
diff
changeset
|
1027 rect.adjustDiv($zoomDiv); |
| 647 | 1028 return false; |
| 1029 }; | |
| 661 | 1030 |
| 647 | 1031 // bind start zoom handler |
| 1032 $scaler.one('mousedown.digilib', zoomStart); | |
| 1033 }; | |
| 640 | 1034 |
|
671
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diff
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|
1035 var birdZoom = function(data) { |
|
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diff
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|
1036 var $birdImg = data.$birdImg; |
|
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|
1037 var $birdZoom = data.$birdZoom; |
|
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diff
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|
1038 var startPos, newRect, birdImgRect, birdZoomRect; |
|
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diff
changeset
|
1039 |
|
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diff
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|
1040 var birdZoomMove = function(evt) { |
|
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diff
changeset
|
1041 // mousemove handler: drag |
|
ba582354e659
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diff
changeset
|
1042 var pos = geom.position(evt); |
|
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670
diff
changeset
|
1043 var dx = pos.x - startPos.x; |
|
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670
diff
changeset
|
1044 var dy = pos.y - startPos.y; |
|
ba582354e659
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670
diff
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|
1045 // move birdZoom div, keeping size |
|
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670
diff
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|
1046 newRect = geom.rectangle( |
|
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670
diff
changeset
|
1047 birdZoomRect.x + dx, |
|
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670
diff
changeset
|
1048 birdZoomRect.y + dy, |
|
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670
diff
changeset
|
1049 birdZoomRect.width, |
|
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diff
changeset
|
1050 birdZoomRect.height |
|
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diff
changeset
|
1051 ); |
|
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diff
changeset
|
1052 // stay within birdimage |
|
ba582354e659
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diff
changeset
|
1053 newRect.stayInside(birdImgRect); |
|
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diff
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|
1054 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
|
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diff
changeset
|
1055 // $birdZoom.show(); |
|
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diff
changeset
|
1056 return false; |
|
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diff
changeset
|
1057 }; |
|
ba582354e659
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diff
changeset
|
1058 |
|
ba582354e659
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diff
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|
1059 var birdZoomEndDrag = function(evt) { |
|
ba582354e659
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diff
changeset
|
1060 // mouseup handler: reload page |
|
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diff
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|
1061 var settings = data.settings; |
| 673 | 1062 $(document).unbind("mousemove.digilib", birdZoomMove); |
| 1063 $(document).unbind("mouseup.digilib", birdZoomEndDrag); | |
| 1064 $birdZoom.unbind("mousemove.digilib", birdZoomMove); | |
| 1065 $birdZoom.unbind("mouseup.digilib", birdZoomEndDrag); | |
|
671
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diff
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|
1066 if (newRect == null) { // no movement happened |
|
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670
diff
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|
1067 startPos = birdZoomRect.getCenter(); |
|
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diff
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|
1068 birdZoomMove(evt); // set center to click position |
|
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diff
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|
1069 }; |
|
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diff
changeset
|
1070 if (data.zoomArea) { |
| 672 | 1071 // should always be true |
| 1072 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
| 1073 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
| 1074 data.zoomArea.x = x; | |
| 1075 data.zoomArea.y = y; | |
|
671
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diff
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|
1076 }; |
|
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diff
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|
1077 settings.ws = 1; // zoomed is always fit |
|
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diff
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|
1078 redisplay(data); |
|
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diff
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|
1079 return false; |
|
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diff
changeset
|
1080 }; |
|
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|
1081 |
|
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diff
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|
1082 var birdZoomStartDrag = function(evt) { |
|
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diff
changeset
|
1083 // mousedown handler: start dragging bird zoom to a new position |
|
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diff
changeset
|
1084 startPos = geom.position(evt); |
|
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diff
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|
1085 birdImgRect = geom.rectangle($birdImg); |
|
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|
1086 birdZoomRect = geom.rectangle($birdZoom); |
| 673 | 1087 $(document).bind("mousemove.digilib", birdZoomMove); |
| 1088 $(document).bind("mouseup.digilib", birdZoomEndDrag); | |
| 1089 $birdZoom.bind("mousemove.digilib", birdZoomMove); | |
| 1090 $birdZoom.bind("mouseup.digilib", birdZoomEndDrag); | |
|
671
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diff
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|
1091 return false; |
|
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diff
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|
1092 }; |
|
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|
1093 |
| 674 | 1094 $birdImg.bind("mousedown.digilib", birdZoomStartDrag); |
| 1095 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag); | |
|
671
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|
1096 }; |
|
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|
1097 |
| 643 | 1098 // sets a key to a value (relative values with +/- if relative=true) |
| 1099 var setNumValue = function(settings, key, value) { | |
| 1100 if (isNumber(value)) return settings[key] = value; | |
| 1101 var sign = value.substring(0,1); | |
| 1102 if (sign === '+' || sign === '-') { | |
| 1103 if (settings[key] == null) { | |
|
644
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643
diff
changeset
|
1104 // this isn't perfect but still... |
| 643 | 1105 settings[key] = 0; |
| 1106 } | |
| 1107 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
| 1108 } else { | |
| 1109 settings[key] = value; | |
| 1110 } | |
| 1111 return settings[key]; | |
| 1112 }; | |
| 648 | 1113 |
| 1114 // auxiliary function (from old dllib.js) | |
| 652 | 1115 isFullArea = function(area) { |
| 1116 return (area.width === 1.0) && (area.height === 1.0); | |
| 648 | 1117 }; |
| 1118 | |
| 634 | 1119 // auxiliary function (from Douglas Crockford, A.10) |
| 1120 var isNumber = function isNumber(value) { | |
| 1121 return typeof value === 'number' && isFinite(value); | |
| 1122 }; | |
| 648 | 1123 |
| 624 | 1124 // auxiliary function to crop senseless precision |
| 1125 var cropFloat = function (x) { | |
| 630 | 1126 return parseInt(10000 * x, 10) / 10000; |
| 624 | 1127 }; |
| 648 | 1128 |
| 598 | 1129 // hook plugin into jquery |
|
644
bffc7d8c3641
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robcast
parents:
643
diff
changeset
|
1130 $.fn.digilib = function(action) { |
|
bffc7d8c3641
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robcast
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643
diff
changeset
|
1131 if (actions[action]) { |
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1132 // call action on this with the remaining arguments (inserting data as first argument) |
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1133 var $elem = $(this); |
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1134 var data = $elem.data('digilib'); |
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1135 var args = Array.prototype.slice.call(arguments, 1); |
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1136 args.unshift(data); |
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1137 return actions[action].apply(this, args); |
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1138 } else if (typeof(action) === 'object' || !action) { |
| 627 | 1139 // call init on this |
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1140 return actions.init.apply(this, arguments); |
| 598 | 1141 } else { |
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1142 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
| 598 | 1143 } |
| 1144 }; | |
| 597 | 1145 |
| 1146 })(jQuery); |