Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 735:9969e01b37cf jquery
fixed problem with setmark, zoomarea and zoomDrag handlers.
added mark buttons and removed fwd and back from embedded set.
| author | robcast |
|---|---|
| date | Wed, 02 Feb 2011 21:11:50 +0100 |
| parents | 7773ccc93729 |
| children | a3381aff9f12 |
| rev | line source |
|---|---|
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1 /* Copyright (c) 2011 Martin Raspe, Robert Casties |
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2 |
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3 This program is free software: you can redistribute it and/or modify |
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4 it under the terms of the GNU Lesser General Public License as published by |
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5 the Free Software Foundation, either version 2 of the License, or |
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6 (at your option) any later version. |
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7 |
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8 This program is distributed in the hope that it will be useful, |
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9 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 GNU Lesser General Public License for more details. |
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12 |
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13 You should have received a copy of the GNU Lesser General Public License |
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14 along with this program. If not, see <http://www.gnu.org/licenses/>. |
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15 |
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16 Authors: |
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17 Martin Raspe, Robert Casties, 11.1.2011 |
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18 */ |
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19 |
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20 /** |
| 597 | 21 * digilib jQuery plugin |
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22 * |
| 597 | 23 */ |
| 648 | 24 |
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25 /*jslint browser: true, debug: true, forin: true */ |
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26 |
| 629 | 27 // fallback for console.log calls |
| 28 if (typeof(console) === 'undefined') { | |
| 29 var console = { | |
| 685 | 30 log : function(){}, |
| 31 debug : function(){}, | |
| 32 error : function(){} | |
| 33 }; | |
| 34 var customConsole = true; | |
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35 } |
| 597 | 36 |
| 37 (function($) { | |
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38 var buttons = { |
| 603 | 39 reference : { |
| 682 | 40 onclick : "reference", |
| 603 | 41 tooltip : "get a reference URL", |
| 42 img : "reference.png" | |
| 43 }, | |
| 44 zoomin : { | |
| 636 | 45 onclick : ["zoomBy", 1.4], |
| 603 | 46 tooltip : "zoom in", |
| 47 img : "zoom-in.png" | |
| 48 }, | |
| 49 zoomout : { | |
| 636 | 50 onclick : ["zoomBy", 0.7], |
| 603 | 51 tooltip : "zoom out", |
| 52 img : "zoom-out.png" | |
| 53 }, | |
| 54 zoomarea : { | |
| 647 | 55 onclick : "zoomArea", |
| 603 | 56 tooltip : "zoom area", |
| 57 img : "zoom-area.png" | |
| 58 }, | |
| 59 zoomfull : { | |
| 643 | 60 onclick : "zoomFull", |
| 603 | 61 tooltip : "view the whole image", |
| 62 img : "zoom-full.png" | |
| 63 }, | |
| 64 pagewidth : { | |
| 643 | 65 onclick : ["zoomFull", "width"], |
| 603 | 66 tooltip : "page width", |
| 67 img : "pagewidth.png" | |
| 68 }, | |
| 69 back : { | |
| 616 | 70 onclick : ["gotoPage", "-1"], |
| 603 | 71 tooltip : "goto previous image", |
| 72 img : "back.png" | |
| 73 }, | |
| 74 fwd : { | |
| 616 | 75 onclick : ["gotoPage", "+1"], |
| 603 | 76 tooltip : "goto next image", |
| 77 img : "fwd.png" | |
| 78 }, | |
| 79 page : { | |
| 709 | 80 onclick : "gotoPage", |
| 81 tooltip : "goto image number", | |
| 603 | 82 img : "page.png" |
| 83 }, | |
| 84 bird : { | |
| 628 | 85 onclick : "showBirdDiv", |
| 603 | 86 tooltip : "show bird's eye view", |
| 87 img : "birds-eye.png" | |
| 88 }, | |
| 89 help : { | |
| 628 | 90 onclick : "showAboutDiv", |
| 603 | 91 tooltip : "about Digilib", |
| 92 img : "help.png" | |
| 93 }, | |
| 94 reset : { | |
| 681 | 95 onclick : "reset", |
| 603 | 96 tooltip : "reset image", |
| 97 img : "reset.png" | |
| 98 }, | |
| 99 mark : { | |
| 640 | 100 onclick : "setMark", |
| 603 | 101 tooltip : "set a mark", |
| 102 img : "mark.png" | |
| 103 }, | |
| 104 delmark : { | |
| 643 | 105 onclick : "removeMark", |
| 603 | 106 tooltip : "delete the last mark", |
| 107 img : "delmark.png" | |
| 108 }, | |
| 109 hmir : { | |
| 654 | 110 onclick : ["mirror", "h"], |
| 603 | 111 tooltip : "mirror horizontally", |
| 112 img : "mirror-horizontal.png" | |
| 113 }, | |
| 114 vmir : { | |
| 654 | 115 onclick : ["mirror", "v"], |
| 603 | 116 tooltip : "mirror vertically", |
| 117 img : "mirror-vertical.png" | |
| 118 }, | |
| 119 rot : { | |
| 656 | 120 onclick : "rotate", |
| 603 | 121 tooltip : "rotate image", |
| 122 img : "rotate.png" | |
| 123 }, | |
| 124 brgt : { | |
| 656 | 125 onclick : "brightness", |
| 603 | 126 tooltip : "set brightness", |
| 127 img : "brightness.png" | |
| 128 }, | |
| 129 cont : { | |
| 656 | 130 onclick : "contrast", |
| 603 | 131 tooltip : "set contrast", |
| 132 img : "contrast.png" | |
| 133 }, | |
| 134 rgb : { | |
| 135 onclick : "javascript:setParamWin('rgb', '...')", | |
| 136 tooltip : "set rgb values", | |
| 137 img : "rgb.png" | |
| 138 }, | |
| 139 quality : { | |
| 696 | 140 onclick : "setquality", |
| 603 | 141 tooltip : "set image quality", |
| 142 img : "quality.png" | |
| 143 }, | |
| 144 size : { | |
| 145 onclick : "javascript:toggleSizeMenu()", | |
| 146 tooltip : "set page size", | |
| 147 img : "size.png" | |
| 148 }, | |
| 149 calibrationx : { | |
| 150 onclick : "javascript:calibrate('x')", | |
| 151 tooltip : "calibrate screen x-ratio", | |
| 152 img : "calibration-x.png" | |
| 153 }, | |
| 154 scale : { | |
| 155 onclick : "javascript:toggleScaleMenu()", | |
| 156 tooltip : "change image scale", | |
| 157 img : "original-size.png" | |
| 158 }, | |
| 692 | 159 toggleoptions : { |
| 160 onclick : "morebuttons", | |
| 161 tooltip : "more options", | |
| 162 img : "options.png" | |
| 163 }, | |
| 683 | 164 moreoptions : { |
| 165 onclick : ["morebuttons", "+1"], | |
| 166 tooltip : "more options", | |
| 167 img : "options.png" | |
| 168 }, | |
| 169 lessoptions : { | |
| 170 onclick : ["morebuttons", "-1"], | |
| 171 tooltip : "less options", | |
| 603 | 172 img : "options.png" |
| 173 }, | |
| 174 SEP : { | |
| 175 img : "sep.png" | |
| 176 } | |
| 177 }; | |
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178 |
| 598 | 179 var defaults = { |
| 609 | 180 // version of this script |
| 628 | 181 'version' : 'jquery.digilib.js 0.9', |
| 609 | 182 // logo url |
| 183 'logoUrl' : '../img/digilib-logo-text1.png', | |
| 628 | 184 // homepage url (behind logo) |
| 185 'homeUrl' : 'http://digilib.berlios.de', | |
| 603 | 186 // base URL to Scaler servlet |
| 645 | 187 'scalerBaseUrl' : null, |
| 603 | 188 // list of Scaler parameters |
| 620 | 189 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
| 190 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
| 191 // Scaler parameter defaults | |
| 636 | 192 'pn' : 1, |
| 620 | 193 'ww' : 1.0, |
| 194 'wh' : 1.0, | |
| 195 'wx' : 0.0, | |
| 196 'wy' : 0.0, | |
| 197 'ws' : 1.0, | |
| 636 | 198 'mo' : '', |
| 199 'rot' : 0, | |
| 200 'cont' : 0, | |
| 201 'brgt' : 0, | |
| 202 'rgbm' : '0/0/0', | |
| 203 'rgba' : '0/0/0', | |
| 204 'ddpi' : null, | |
| 205 'ddpix' : null, | |
| 206 'ddpiy' : null, | |
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207 // list of digilib parameters |
| 643 | 208 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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209 // digilib parameter defaults |
| 636 | 210 'mk' : '', |
| 643 | 211 'clop' : '', |
| 636 | 212 // mode of operation: |
| 213 // fullscreen = take parameters from page URL, keep state in page URL | |
| 214 // embedded = take parameters from Javascript options, keep state inside object | |
| 603 | 215 'interactionMode' : 'fullscreen', |
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216 // buttons |
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217 'buttons' : buttons, |
| 661 | 218 // defaults for digilib buttons |
| 658 | 219 'buttonSettings' : { |
| 220 'fullscreen' : { | |
| 661 | 221 // path to button images (must end with a slash) |
| 658 | 222 'imagePath' : 'img/fullscreen/', |
| 714 | 223 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","help","reset","toggleoptions"], |
| 224 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","toggleoptions"], | |
| 675 | 225 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 226 }, |
| 227 'embedded' : { | |
| 228 'imagePath' : 'img/embedded/16/', | |
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229 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","bird","help","reset","toggleoptions"], |
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230 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","toggleoptions"], |
| 675 | 231 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 232 } |
| 690 | 233 }, |
| 234 // number of visible button groups | |
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235 'visibleButtonSets' : 1, |
| 609 | 236 // is birdView shown? |
| 237 'isBirdDivVisible' : false, | |
| 661 | 238 // dimensions of bird's eye div |
| 667 | 239 'birdDivWidth' : 200, |
| 240 'birdDivHeight' : 200, | |
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241 // parameters used by bird's eye div |
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242 'birdDivParams' : ['fn','pn','dw','dh'], |
| 661 | 243 // style of the zoom area indicator in the bird's eye div |
| 652 | 244 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
| 661 | 245 // style of zoom area "rubber band" |
| 246 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
| 609 | 247 // is the "about" window shown? |
| 734 | 248 'isAboutDivVisible' : false, |
| 249 // maximum width of background image for drag-scroll | |
| 250 'maxBgSize' : 10000 | |
| 609 | 251 |
| 603 | 252 }; |
| 648 | 253 |
| 601 | 254 // affine geometry classes |
| 255 var geom = dlGeometry(); | |
| 648 | 256 |
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257 var FULL_AREA = geom.rectangle(0, 0, 1, 1); |
| 648 | 258 |
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259 var actions = { |
| 661 | 260 // init: digilib initialization |
| 261 init : function(options) { | |
| 262 // settings for this digilib instance are merged from defaults and options | |
| 263 var settings = $.extend({}, defaults, options); | |
| 264 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
| 265 var queryParams = {}; | |
| 266 if (isFullscreen) { | |
| 267 queryParams = parseQueryParams(); | |
| 268 // check scalerBaseUrl | |
| 269 if (settings.scalerBaseUrl == null) { | |
| 270 // try the host this came from | |
| 271 var h = window.location.host; | |
| 272 if (window.location.host) { | |
| 273 var url = window.location.href; | |
| 274 // assume the page lives in [webapp]/jquery/ | |
| 275 var pos = url.indexOf('jquery/'); | |
| 276 if (pos > 0) { | |
| 277 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
| 645 | 278 } |
| 279 } | |
| 629 | 280 } |
| 661 | 281 } |
| 282 return this.each(function() { | |
| 283 var $elem = $(this); | |
| 284 var data = $elem.data('digilib'); | |
| 681 | 285 var params, elemSettings; |
| 661 | 286 // if the plugin hasn't been initialized yet |
| 287 if (!data) { | |
| 288 // merge query parameters | |
| 289 if (isFullscreen) { | |
| 681 | 290 params = queryParams; |
| 661 | 291 } else { |
| 681 | 292 params = parseImgParams($elem); |
| 720 | 293 if (jQuery.cookie) { |
| 294 // retrieve params from cookie | |
| 295 var ck = "digilib-embed:fn:" + escape(params.fn) + ":pn:" + (params.pn || '1'); | |
| 296 var cs = jQuery.cookie(ck); | |
| 297 console.debug("get cookie=", ck, " value=", cs); | |
| 298 if (cs) { | |
| 299 var cp = parseQueryString(cs); | |
| 721 | 300 // ignore fn and pn from cookie TODO: should we keep pn? |
| 301 delete cp.fn; | |
| 302 delete cp.pn; | |
| 303 jQuery.extend(params, cp); | |
| 720 | 304 } |
| 305 } | |
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306 } |
| 661 | 307 // store $(this) element in the settings |
| 721 | 308 elemSettings = jQuery.extend({}, settings, params); |
| 690 | 309 data = { |
| 661 | 310 $elem : $elem, |
| 311 settings : elemSettings, | |
| 681 | 312 queryParams : params |
| 661 | 313 }; |
| 314 // store in data element | |
| 315 $elem.data('digilib', data); | |
| 316 } | |
| 317 unpackParams(data); | |
| 734 | 318 // check if browser knows background-size |
| 319 for (var bs in {'':1, '-moz-':1, '-webkit-':1, '-o-':1}) { | |
| 320 if ($elem.css(bs+'background-size')) { | |
| 321 data.hasBgSize = true; | |
| 322 data.bgSizeName = bs+'background-size'; | |
| 323 break; | |
| 324 } | |
| 325 } | |
| 675 | 326 // create HTML structure for scaler |
| 661 | 327 setupScalerDiv(data); |
| 690 | 328 // add buttons |
| 329 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { | |
| 330 showButtons(data, true, i); | |
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331 } |
| 661 | 332 // bird's eye view creation |
| 703 | 333 if (elemSettings.isBirdDivVisible) { |
| 631 | 334 setupBirdDiv(data); |
| 716 | 335 data.$birdDiv.show(); |
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336 } |
| 661 | 337 // about window creation - TODO: could be deferred? restrict to only one item? |
| 338 setupAboutDiv(data); | |
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339 // drag zoom area around in scaler div |
| 700 | 340 setupZoomDrag(data); |
| 661 | 341 }); |
| 342 }, | |
| 343 | |
| 344 // destroy: clean up digilib | |
| 345 destroy : function(data) { | |
| 346 return this.each(function(){ | |
| 347 var $elem = $(this); | |
| 348 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
| 349 data.digilib.remove(); | |
| 350 $elem.removeData('digilib'); | |
| 351 }); | |
| 352 }, | |
| 353 | |
| 354 // show or hide the 'about' window | |
| 355 showAboutDiv : function(data, show) { | |
| 356 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
| 357 }, | |
| 648 | 358 |
| 661 | 359 // event handler: toggles the visibility of the bird's eye window |
| 360 showBirdDiv : function (data, show) { | |
| 719 | 361 var settings = data.settings; |
| 661 | 362 if (data.$birdDiv == null) { |
| 363 // no bird div -> create | |
| 364 setupBirdDiv(data); | |
| 365 } | |
| 719 | 366 settings.isBirdDivVisible = showDiv(settings.isBirdDivVisible, data.$birdDiv, show); |
| 367 updateBirdDiv(data); | |
| 716 | 368 storeOptions(data); |
| 369 // data.$birdImg.triggerHandler('load'); // TODO: we shouldn't do that | |
| 661 | 370 }, |
| 371 | |
| 372 // goto given page nr (+/-: relative) | |
| 373 gotoPage : function (data, pageNr) { | |
| 374 var settings = data.settings; | |
| 375 var oldpn = settings.pn; | |
| 709 | 376 if (pageNr == null) { |
| 377 pageNr = window.prompt("Goto page number", oldpn); | |
| 378 } | |
| 661 | 379 var pn = setNumValue(settings, "pn", pageNr); |
| 380 if (pn == null) return false; // nothing happened | |
| 381 if (pn < 1) { | |
| 382 alert("no such page (page number too low)"); | |
| 383 settings.pn = oldpn; | |
| 384 return false; | |
| 385 } | |
| 386 if (settings.pt) { | |
| 387 if (pn > settings.pt) { | |
| 388 alert("no such page (page number too high)"); | |
| 616 | 389 settings.pn = oldpn; |
| 390 return false; | |
| 627 | 391 } |
| 661 | 392 } |
| 393 // reset mk and others(?) | |
| 394 data.marks = []; | |
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395 data.zoomArea = FULL_AREA; |
| 661 | 396 // then reload |
| 397 redisplay(data); | |
| 398 }, | |
| 647 | 399 |
| 661 | 400 // zoom by a given factor |
| 401 zoomBy : function (data, factor) { | |
| 402 zoomBy(data, factor); | |
| 403 }, | |
| 640 | 404 |
| 661 | 405 // zoom interactively |
| 406 zoomArea : function (data) { | |
| 407 zoomArea(data); | |
| 408 }, | |
| 643 | 409 |
| 661 | 410 // zoom out to full page |
| 411 zoomFull : function (data, mode) { | |
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412 data.zoomArea = FULL_AREA; |
| 661 | 413 if (mode === 'width') { |
| 414 data.dlOpts.fitwidth = 1; | |
| 415 delete data.dlOpts.fitheight; | |
| 416 } else if (mode === 'height') { | |
| 417 data.dlOpts.fitheight = 1; | |
| 418 delete data.dlOpts.fitwidth; | |
| 419 } else { | |
| 420 delete data.dlOpts.fitwidth; | |
| 421 delete data.dlOpts.fitheight; | |
| 422 } | |
| 423 redisplay(data); | |
| 424 }, | |
| 425 | |
| 426 // set a mark by clicking (or giving a position) | |
| 427 setMark : function (data, mpos) { | |
| 428 if (mpos == null) { | |
| 429 // interactive | |
| 430 setMark(data); | |
| 431 } else { | |
| 432 // use position | |
| 433 data.marks.push(pos); | |
| 656 | 434 redisplay(data); |
| 597 | 435 } |
| 661 | 436 }, |
| 437 | |
| 438 // remove the last mark | |
| 439 removeMark : function (data) { | |
| 440 data.marks.pop(); | |
| 441 redisplay(data); | |
| 442 }, | |
| 443 | |
| 444 // mirror the image | |
| 445 mirror : function (data, mode) { | |
| 446 var flags = data.scalerFlags; | |
| 447 if (mode === 'h') { | |
| 448 if (flags.hmir) { | |
| 449 delete flags.hmir; | |
| 450 } else { | |
| 451 flags.hmir = 1; | |
| 452 } | |
| 453 } else { | |
| 454 if (flags.vmir) { | |
| 455 delete flags.vmir; | |
| 456 } else { | |
| 457 flags.vmir = 1; | |
| 458 } | |
| 459 } | |
| 460 redisplay(data); | |
| 461 }, | |
| 643 | 462 |
| 661 | 463 // rotate the image |
| 464 rotate : function (data, angle) { | |
| 465 var rot = data.settings.rot; | |
| 466 if (angle == null) { | |
| 467 angle = window.prompt("Rotation angle:", rot); | |
| 468 } | |
| 469 data.settings.rot = angle; | |
| 470 redisplay(data); | |
| 471 }, | |
| 472 | |
| 473 // change brightness | |
| 474 brightness : function (data, factor) { | |
| 475 var brgt = data.settings.brgt; | |
| 476 if (factor == null) { | |
| 477 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 478 } | |
| 479 data.settings.brgt = factor; | |
| 480 redisplay(data); | |
| 481 }, | |
| 482 | |
| 483 // change contrast | |
| 484 contrast : function (data, factor) { | |
| 485 var cont = data.settings.cont; | |
| 486 if (factor == null) { | |
| 487 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 488 } | |
| 489 data.settings.cont = factor; | |
| 490 redisplay(data); | |
| 681 | 491 }, |
| 703 | 492 |
| 683 | 493 // display more (or less) button sets |
| 494 morebuttons : function (data, more) { | |
| 689 | 495 var settings = data.settings; |
| 692 | 496 if (more == null) { |
| 696 | 497 // toggle more or less (only works for 2 sets) |
| 692 | 498 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
| 499 if (settings.visibleButtonSets >= maxbtns) { | |
| 500 more = '-1'; | |
| 501 } else { | |
| 502 more = '+1'; | |
| 503 } | |
| 504 } | |
| 683 | 505 if (more === '-1') { |
| 506 // remove set | |
| 690 | 507 var setIdx = settings.visibleButtonSets - 1; |
| 508 if (showButtons(data, false, setIdx, true)) { | |
| 509 settings.visibleButtonSets--; | |
| 510 } | |
| 683 | 511 } else { |
| 512 // add set | |
| 690 | 513 var setIdx = settings.visibleButtonSets; |
| 514 if (showButtons(data, true, setIdx, true)) { | |
| 515 settings.visibleButtonSets++; | |
| 683 | 516 } |
| 517 } | |
| 716 | 518 // persist setting |
| 519 storeOptions(data); | |
| 684 | 520 }, |
| 681 | 521 |
| 696 | 522 // reset image parameters to defaults |
| 681 | 523 reset : function (data) { |
| 524 var settings = data.settings; | |
| 525 var paramNames = settings.digilibParamNames; | |
| 526 var params = data.queryParams; | |
| 527 // delete all digilib parameters | |
| 528 for (var i = 0; i < paramNames.length; i++) { | |
| 529 var paramName = paramNames[i]; | |
| 530 delete settings[paramName]; | |
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531 } |
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532 settings.fn = params.fn || ''; // no default defined |
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533 settings.pn = params.pn || defaults.pn; |
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534 settings.dw = params.dw; |
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535 settings.dh = params.dh; |
| 702 | 536 settings.isBirdDivVisible = false; |
| 537 settings.visibleButtonSets = 1; | |
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538 // resets zoomArea, marks, scalerflags |
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539 data.zoomArea = FULL_AREA; |
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540 data.marks = []; |
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541 data.scalerFlags = {}; |
| 705 | 542 delete data.dlOpts.fitwidth; |
| 543 delete data.dlOpts.fitheight; | |
| 681 | 544 redisplay(data); |
| 682 | 545 }, |
| 546 | |
| 696 | 547 // presents a reference url (returns value if noprompt) |
| 548 reference : function (data, noprompt) { | |
| 682 | 549 var settings = data.settings; |
| 550 var url; | |
| 551 if (settings.interactionMode === 'fullscreen') { | |
| 552 url = getDigilibUrl(data); | |
| 553 } else { | |
| 554 url = getScalerUrl(data); | |
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555 } |
| 696 | 556 if (noprompt == null) { |
| 557 window.prompt("URL reference to the current view", url); | |
| 558 } | |
| 559 return url; | |
| 560 }, | |
| 703 | 561 |
| 696 | 562 // set image quality |
| 563 setquality : function (data, qual) { | |
| 564 var oldq = getQuality(data); | |
| 565 if (qual == null) { | |
| 566 qual = window.prompt("Image quality (0..2)", oldq); | |
| 567 } | |
| 568 qual = parseInt(qual, 10); | |
| 569 if (qual >= 0 && qual <= 2) { | |
| 570 setQuality(data, qual); | |
| 571 redisplay(data); | |
| 572 } | |
| 661 | 573 } |
| 598 | 574 }; |
| 597 | 575 |
| 601 | 576 // returns parameters from page url |
| 600 | 577 var parseQueryParams = function() { |
| 629 | 578 return parseQueryString(window.location.search.slice(1)); |
| 579 }; | |
| 648 | 580 |
| 629 | 581 // returns parameters from embedded img-element |
| 600 | 582 var parseImgParams = function($elem) { |
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583 var src = $elem.find('img').first().attr('src'); |
| 703 | 584 if (!src) return null; |
| 600 | 585 var pos = src.indexOf('?'); |
| 586 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 587 var scalerUrl = src.substring(0, pos); | |
| 620 | 588 var params = parseQueryString(query); |
| 589 params.scalerBaseUrl = scalerUrl; | |
| 590 return params; | |
| 629 | 591 }; |
| 600 | 592 |
| 601 | 593 // parses query parameter string into parameter object |
| 600 | 594 var parseQueryString = function(query) { |
| 694 | 595 var params = {}; |
| 596 if (query == null) return params; | |
| 600 | 597 var pairs = query.split("&"); |
| 629 | 598 //var keys = []; |
| 600 | 599 for (var i = 0; i < pairs.length; i++) { |
| 600 var pair = pairs[i].split("="); | |
| 601 if (pair.length === 2) { | |
| 620 | 602 params[pair[0]] = pair[1]; |
| 629 | 603 //keys.push(pair[0]); |
| 627 | 604 } |
| 629 | 605 } |
| 620 | 606 return params; |
| 629 | 607 }; |
| 661 | 608 |
| 636 | 609 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 610 var getParamString = function (settings, keys, defaults) { | |
| 608 | 611 var paramString = ''; |
| 643 | 612 var nx = false; |
| 608 | 613 for (i = 0; i < keys.length; ++i) { |
| 614 var key = keys[i]; | |
| 656 | 615 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 608 | 616 // first param gets no '&' |
| 643 | 617 if (nx) { |
| 618 paramString += '&'; | |
| 619 } else { | |
| 620 nx = true; | |
| 621 } | |
| 608 | 622 // add parm=val |
| 623 paramString += key + '=' + settings[key]; | |
| 636 | 624 } |
| 608 | 625 } |
| 626 return paramString; | |
| 624 | 627 }; |
| 628 | |
| 629 | 629 // returns URL and query string for Scaler |
| 630 var getScalerUrl = function (data) { | |
| 734 | 631 packParams(data); |
| 646 | 632 var settings = data.settings; |
| 645 | 633 if (settings.scalerBaseUrl == null) { |
| 634 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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635 } |
| 629 | 636 var keys = settings.scalerParamNames; |
| 636 | 637 var queryString = getParamString(settings, keys, defaults); |
| 629 | 638 var url = settings.scalerBaseUrl + '?' + queryString; |
| 639 return url; | |
| 640 }; | |
| 641 | |
| 734 | 642 // returns URL for bird's eye view image |
| 643 var getBirdImgUrl = function (data) { | |
| 644 var settings = data.settings; | |
| 645 var birdDivOptions = { | |
| 646 dw : settings.birdDivWidth, | |
| 647 dh : settings.birdDivHeight | |
| 648 }; | |
| 649 var birdSettings = $.extend({}, settings, birdDivOptions); | |
| 650 // use only the relevant parameters | |
| 651 var url = settings.scalerBaseUrl + '?' + | |
| 652 getParamString(birdSettings, settings.birdDivParams); | |
| 653 return url; | |
| 654 }; | |
| 655 | |
| 629 | 656 // returns URL and query string for current digilib |
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657 var getDigilibUrl = function (data) { |
| 636 | 658 packParams(data); |
| 629 | 659 var settings = data.settings; |
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660 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 629 | 661 var url = window.location.toString(); |
| 662 var pos = url.indexOf('?'); | |
| 663 var baseUrl = url.substring(0, pos); | |
| 664 var newurl = baseUrl + '?' + queryString; | |
| 665 return newurl; | |
| 666 }; | |
| 667 | |
| 648 | 668 // processes some parameters into objects and stuff |
| 624 | 669 var unpackParams = function (data) { |
| 670 var settings = data.settings; | |
| 629 | 671 // zoom area |
| 624 | 672 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 636 | 673 data.zoomArea = zoomArea; |
| 629 | 674 // marks |
| 624 | 675 var marks = []; |
| 643 | 676 if (settings.mk) { |
| 677 var mk = settings.mk; | |
| 678 if (mk.indexOf(";") >= 0) { | |
| 679 var pa = mk.split(";"); // old format with ";" | |
| 680 } else { | |
| 681 var pa = mk.split(","); // new format | |
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682 } |
| 643 | 683 for (var i = 0; i < pa.length ; i++) { |
| 684 var pos = pa[i].split("/"); | |
| 685 if (pos.length > 1) { | |
| 686 marks.push(geom.position(pos[0], pos[1])); | |
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687 } |
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688 } |
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689 } |
| 636 | 690 data.marks = marks; |
| 643 | 691 // mo (Scaler flags) |
| 692 var flags = {}; | |
| 693 if (settings.mo) { | |
| 694 var pa = settings.mo.split(","); | |
| 695 for (var i = 0; i < pa.length ; i++) { | |
| 696 flags[pa[i]] = pa[i]; | |
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697 } |
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698 } |
| 643 | 699 data.scalerFlags = flags; |
| 716 | 700 retrieveOptions(data); |
| 648 | 701 }; |
| 702 | |
| 624 | 703 // put objects back into parameters |
| 704 var packParams = function (data) { | |
| 705 var settings = data.settings; | |
| 629 | 706 // zoom area |
| 636 | 707 if (data.zoomArea) { |
| 640 | 708 settings.wx = cropFloat(data.zoomArea.x); |
| 709 settings.wy = cropFloat(data.zoomArea.y); | |
| 710 settings.ww = cropFloat(data.zoomArea.width); | |
| 711 settings.wh = cropFloat(data.zoomArea.height); | |
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712 } |
| 629 | 713 // marks |
| 636 | 714 if (data.marks) { |
| 643 | 715 settings.mk = ''; |
| 636 | 716 for (var i = 0; i < data.marks.length; i++) { |
| 643 | 717 if (i) { |
| 718 settings.mk += ','; | |
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719 } |
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720 settings.mk += cropFloat(data.marks[i].x).toString() + |
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721 '/' + cropFloat(data.marks[i].y).toString(); |
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722 } |
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723 } |
| 643 | 724 // Scaler flags |
| 725 if (data.scalerFlags) { | |
| 726 var mo = ''; | |
| 727 for (var f in data.scalerFlags) { | |
| 728 if (mo) { | |
| 729 mo += ','; | |
| 730 } | |
| 731 mo += f; | |
| 732 } | |
| 733 settings.mo = mo; | |
| 734 } | |
| 703 | 735 // user interface options |
| 716 | 736 storeOptions(data); |
| 702 | 737 }; |
| 681 | 738 |
| 716 | 739 var storeOptions = function (data) { |
| 694 | 740 // save digilib options in cookie |
| 702 | 741 var settings = data.settings; |
| 742 if (data.dlOpts) { | |
| 743 // save digilib settings in options | |
| 744 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
| 745 data.dlOpts.buttons = settings.visibleButtonSets; | |
| 746 var clop = ''; | |
| 747 for (var o in data.dlOpts) { | |
| 748 if (clop) { | |
| 749 clop += '&'; | |
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750 } |
| 702 | 751 clop += o + '=' + data.dlOpts[o]; |
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752 } |
| 702 | 753 if (jQuery.cookie) { |
| 754 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 755 console.debug("set cookie=", ck, " value=", clop); | |
| 756 jQuery.cookie(ck, clop); | |
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757 } |
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758 } |
| 720 | 759 if (settings.interactionMode !== 'fullscreen' && jQuery.cookie) { |
| 760 // store normal parameters in cookie for embedded mode | |
| 761 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
| 762 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 763 console.debug("set cookie=", ck, " value=", qs); | |
| 764 jQuery.cookie(ck, qs); | |
| 765 } | |
| 624 | 766 }; |
| 648 | 767 |
| 716 | 768 var retrieveOptions = function (data) { |
| 702 | 769 // clop (digilib options) |
| 770 var opts = {}; | |
| 771 var settings = data.settings; | |
| 772 if (jQuery.cookie) { | |
| 773 // read from cookie | |
| 774 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 775 var cp = jQuery.cookie(ck); | |
| 776 console.debug("get cookie=", ck, " value=", cp); | |
| 777 // in query string format | |
| 778 opts = parseQueryString(cp); | |
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779 } |
| 702 | 780 data.dlOpts = opts; |
| 781 // birdview option | |
| 782 if (opts.birdview != null) { | |
| 783 settings.isBirdDivVisible = opts.birdview === '1'; | |
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784 } |
| 702 | 785 // visible button sets |
| 786 if (opts.buttons != null) { | |
| 787 settings.visibleButtonSets = opts.buttons; | |
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788 } |
| 704 | 789 }; |
| 702 | 790 |
| 615 | 791 // (re)load the img from a new scaler URL |
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792 var redisplay = function (data) { |
| 629 | 793 var settings = data.settings; |
| 794 if (settings.interactionMode === 'fullscreen') { | |
| 795 // update location.href (browser URL) in fullscreen mode | |
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796 var url = getDigilibUrl(data); |
| 629 | 797 var history = window.history; |
| 798 if (typeof(history.pushState) === 'function') { | |
| 799 console.debug("we could modify history, but we don't..."); | |
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800 } |
| 629 | 801 window.location = url; |
| 802 } else { | |
| 803 // embedded mode -- just change img src | |
| 804 var url = getScalerUrl(data); | |
| 805 data.$img.attr('src', url); | |
| 719 | 806 // redisplay bird img |
| 807 updateBirdDiv(data); | |
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808 } |
| 615 | 809 }; |
| 810 | |
| 655 | 811 // returns maximum size for scaler img in fullscreen mode |
| 812 var getFullscreenImgSize = function($elem) { | |
| 813 var $win = $(window); | |
| 814 var winH = $win.height(); | |
| 815 var winW = $win.width(); | |
| 816 // TODO: account for borders? | |
| 817 return geom.size(winW, winH); | |
| 818 }; | |
| 819 | |
| 601 | 820 // creates HTML structure for digilib in elem |
| 620 | 821 var setupScalerDiv = function (data) { |
| 822 var settings = data.settings; | |
| 640 | 823 var $elem = data.$elem; |
| 718 | 824 $elem.addClass('digilib'); |
| 721 | 825 var $img; |
| 826 var scalerUrl; | |
| 601 | 827 if (settings.interactionMode === 'fullscreen') { |
| 721 | 828 // fullscreen |
| 718 | 829 $elem.addClass('dl_fullscreen'); |
| 602 | 830 var imgSize = getFullscreenImgSize($elem); |
| 643 | 831 // fitwidth/height omits destination height/width |
| 721 | 832 if (data.dlOpts.fitheight == null) { |
| 643 | 833 settings.dw = imgSize.width; |
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834 } |
| 721 | 835 if (data.dlOpts.fitwidth == null) { |
| 643 | 836 settings.dh = imgSize.height; |
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837 } |
| 679 | 838 scalerUrl = getScalerUrl(data); |
| 721 | 839 $img = $('<img/>'); |
| 602 | 840 } else { |
| 721 | 841 // embedded mode -- try to keep img tag |
| 718 | 842 $elem.addClass('dl_embedded'); |
| 721 | 843 scalerUrl = getScalerUrl(data); |
| 616 | 844 $img = $elem.find('img'); |
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845 if ($img.length > 0) { |
| 721 | 846 oldUrl = $img.attr('src'); |
| 847 if (oldUrl === scalerUrl) { | |
| 848 console.debug("img detach:", $img); | |
| 849 $img.detach(); | |
| 850 } else { | |
| 851 $img = $('<img/>'); | |
| 852 } | |
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853 } else { |
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854 $img = $('<img/>'); |
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855 } |
| 601 | 856 } |
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857 // create new html |
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858 $elem.empty(); // TODO: should we keep stuff for customization? |
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859 var $scaler = $('<div class="scaler"/>'); |
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860 $elem.append($scaler); |
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861 $scaler.append($img); |
| 615 | 862 $img.addClass('pic'); |
| 642 | 863 data.$scaler = $scaler; |
| 629 | 864 data.$img = $img; |
| 680 | 865 // setup image load handler before setting the src attribute (IE bug) |
| 866 $img.load(scalerImgLoadedHandler(data)); | |
| 867 $img.attr('src', scalerUrl); | |
| 601 | 868 }; |
| 608 | 869 |
| 603 | 870 // creates HTML structure for buttons in elem |
| 690 | 871 var createButtons = function (data, buttonSetIdx) { |
| 640 | 872 var $elem = data.$elem; |
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873 var settings = data.settings; |
| 658 | 874 var mode = settings.interactionMode; |
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875 var buttonSettings = settings.buttonSettings[mode]; |
| 675 | 876 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
| 683 | 877 if (buttonGroup == null) { |
| 878 // no buttons here | |
| 879 return; | |
| 880 } | |
| 881 var $buttonsDiv = $('<div class="buttons"/>'); | |
| 675 | 882 var buttonNames = buttonSettings[buttonGroup]; |
| 883 for (var i = 0; i < buttonNames.length; i++) { | |
| 884 var buttonName = buttonNames[i]; | |
| 885 var buttonConfig = settings.buttons[buttonName]; | |
| 658 | 886 // construct the button html |
| 887 var $button = $('<div class="button"></div>'); | |
| 888 var $a = $('<a/>'); | |
| 889 var $img = $('<img class="button"/>'); | |
| 890 $buttonsDiv.append($button); | |
| 891 $button.append($a); | |
| 892 $a.append($img); | |
| 893 // add attributes and bindings | |
| 894 $button.attr('title', buttonConfig.tooltip); | |
| 675 | 895 $button.addClass('button-' + buttonName); |
| 658 | 896 // create handler for the buttons |
| 897 $a.bind('click.digilib', (function () { | |
| 898 // we create a new closure to capture the value of action | |
| 899 var action = buttonConfig.onclick; | |
| 900 if ($.isArray(action)) { | |
| 901 // the handler function calls digilib with action and parameters | |
| 902 return function (evt) { | |
| 903 console.debug('click action=', action, ' evt=', evt); | |
| 904 $elem.digilib.apply($elem, action); | |
| 905 return false; | |
| 906 }; | |
| 907 } else { | |
| 908 // the handler function calls digilib with action | |
| 909 return function (evt) { | |
| 910 console.debug('click action=', action, ' evt=', evt); | |
| 911 $elem.digilib(action); | |
| 912 return false; | |
| 913 }; | |
| 914 } | |
| 915 })()); | |
| 916 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
| 683 | 917 } |
| 655 | 918 // make buttons div scroll if too large for window |
| 919 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 920 $buttonsDiv.css('position', 'absolute'); | |
| 921 } | |
| 690 | 922 // buttons hidden at first |
| 923 $buttonsDiv.hide(); | |
| 924 $elem.append($buttonsDiv); | |
| 675 | 925 if (data.$buttonSets == null) { |
| 690 | 926 // first button set |
| 675 | 927 data.$buttonSets = [$buttonsDiv]; |
| 928 } else { | |
| 683 | 929 $elem.append($buttonsDiv); |
| 675 | 930 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
| 931 } | |
| 605 | 932 return $buttonsDiv; |
| 603 | 933 }; |
| 608 | 934 |
| 935 // creates HTML structure for the bird's eye view in elem | |
| 631 | 936 var setupBirdDiv = function (data) { |
| 640 | 937 var $elem = data.$elem; |
| 608 | 938 // the bird's eye div |
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939 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 608 | 940 // the detail indicator frame |
| 719 | 941 var $birdZoom = $('<div class="birdzoom" style="display:none; background-color:transparent;"/>'); |
| 608 | 942 // the small image |
| 943 var $birdImg = $('<img class="birdimg"/>'); | |
| 716 | 944 data.$birdDiv = $birdDiv; |
| 945 data.$birdZoom = $birdZoom; | |
| 946 data.$birdImg = $birdImg; | |
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947 $elem.append($birdDiv); |
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948 $birdDiv.append($birdZoom); |
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949 $birdDiv.append($birdImg); |
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950 $birdZoom.css(data.settings.birdIndicatorStyle); |
| 716 | 951 var birdUrl = getBirdImgUrl(data); |
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952 $birdImg.load(birdImgLoadedHandler(data)); |
| 716 | 953 $birdImg.attr('src', birdUrl); |
| 954 }; | |
| 955 | |
| 956 // update bird's eye view | |
| 957 var updateBirdDiv = function (data) { | |
| 958 if (!data.settings.isBirdDivVisible) return; | |
| 959 var $birdImg = data.$birdImg; | |
| 960 var oldsrc = $birdImg.attr('src'); | |
| 961 var newsrc = getBirdImgUrl(data); | |
| 962 if (oldsrc !== newsrc) { | |
| 963 $birdImg.attr('src', newsrc); | |
| 964 // onload handler re-renders | |
| 965 } else { | |
| 966 // re-render | |
| 967 renderBirdArea(data); | |
| 723 | 968 // enable click and drag |
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969 setupBirdDrag(data); |
| 716 | 970 } |
|
712
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971 }; |
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972 |
| 618 | 973 // creates HTML structure for the about view in elem |
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974 var setupAboutDiv = function (data) { |
| 640 | 975 var $elem = data.$elem; |
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976 var settings = data.settings; |
| 618 | 977 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 609 | 978 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 979 var $link = $('<a/>'); | |
| 980 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 981 var $content = $('<p/>'); | |
| 982 $elem.append($aboutDiv); | |
| 983 $aboutDiv.append($header); | |
| 984 $aboutDiv.append($link); | |
| 985 $aboutDiv.append($content); | |
| 986 $link.append($logo); | |
| 987 $logo.attr('src', settings.logoUrl); | |
| 628 | 988 $link.attr('href', settings.homeUrl); |
| 609 | 989 $content.text('Version: ' + settings.version); |
| 628 | 990 // click hides |
| 642 | 991 $aboutDiv.bind('click.digilib', function () { |
| 639 | 992 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 642 | 993 return false; |
| 703 | 994 }); |
| 628 | 995 data.$aboutDiv = $aboutDiv; |
| 627 | 996 }; |
| 997 | |
| 628 | 998 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 999 var showDiv = function (isVisible, $div, show) { | |
| 638 | 1000 if (show == null) { |
| 628 | 1001 // toggle visibility |
| 1002 isVisible = !isVisible; | |
| 1003 } else { | |
| 1004 // set visibility | |
| 1005 isVisible = show; | |
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1006 } |
| 628 | 1007 if (isVisible) { |
| 1008 $div.fadeIn(); | |
| 1009 } else { | |
| 1010 $div.fadeOut(); | |
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1011 } |
| 628 | 1012 return isVisible; |
| 627 | 1013 }; |
| 609 | 1014 |
| 690 | 1015 // display more (or less) button sets |
| 1016 var showButtons = function (data, more, setIdx, animated) { | |
| 704 | 1017 var atime = animated ? 'fast': 0; |
| 690 | 1018 if (more) { |
| 1019 // add set | |
| 1020 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 1021 var $set; | |
| 1022 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
| 1023 // set exists | |
| 1024 $set = data.$buttonSets[setIdx]; | |
| 1025 } else { | |
| 1026 $set = createButtons(data, setIdx); | |
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1027 } |
| 690 | 1028 if ($set == null) return false; |
| 1029 var btnWidth = $set.width(); | |
| 1030 // move remaining sets left and show new set | |
| 704 | 1031 if ($otherSets.length > 0) { |
| 1032 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
| 1033 function () {$set.show();}); | |
| 690 | 1034 } else { |
| 1035 $set.show(); | |
| 704 | 1036 } |
| 690 | 1037 } else { |
| 1038 // remove set | |
| 1039 var $set = data.$buttonSets[setIdx]; | |
| 1040 if ($set == null) return false; | |
| 1041 var btnWidth = $set.width(); | |
| 1042 // hide last set | |
| 1043 $set.hide(); | |
| 1044 // take remaining sets and move right | |
| 1045 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 704 | 1046 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
| 1047 } | |
| 690 | 1048 return true; |
| 1049 }; | |
| 1050 | |
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1051 // create Transform from area and $img |
| 668 | 1052 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
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1053 var picrect = geom.rectangle($img); |
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1054 var trafo = geom.transform(); |
| 668 | 1055 // move zoom area offset to center |
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1056 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 668 | 1057 // scale zoom area size to [1,1] |
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1058 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 668 | 1059 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 1060 if (rot || hmir || vmir) { | |
| 1061 // move [0.5,0.5] to center | |
| 1062 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 1063 if (hmir) { | |
| 1064 // mirror about center | |
| 1065 trafo.concat(trafo.getMirror('y')); | |
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1066 } |
| 668 | 1067 if (vmir) { |
| 1068 // mirror about center | |
| 1069 trafo.concat(trafo.getMirror('x')); | |
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1070 } |
| 668 | 1071 if (rot) { |
| 1072 // rotate around center | |
| 1073 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
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1074 } |
| 668 | 1075 // move back |
| 1076 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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1077 } |
|
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1078 // scale to screen position and size |
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1079 trafo.concat(trafo.getScale(picrect)); |
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1080 trafo.concat(trafo.getTranslation(picrect)); |
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1081 return trafo; |
| 648 | 1082 }; |
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1083 |
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1084 // returns function for load event of scaler img |
| 629 | 1085 var scalerImgLoadedHandler = function (data) { |
| 626 | 1086 return function () { |
| 716 | 1087 var $img = $(this); |
| 731 | 1088 var $scaler = data.$scaler; |
| 620 | 1089 // create Transform from current area and picsize |
| 668 | 1090 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
| 1091 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
| 679 | 1092 console.debug("imgTrafo=", data.imgTrafo); |
| 726 | 1093 // adjust scaler div size |
| 731 | 1094 var imgRect = geom.rectangle($img); |
| 726 | 1095 console.debug("imgrect=", imgRect); |
| 731 | 1096 imgRect.adjustDiv($scaler); |
| 708 | 1097 // show image in case it was hidden (for example in zoomDrag) |
| 726 | 1098 $img.css('visibility', 'visible'); |
| 734 | 1099 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
| 620 | 1100 // display marks |
| 626 | 1101 renderMarks(data); |
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1102 // enable drag-to-scroll |
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1103 setupZoomDrag(data); |
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1104 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation |
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1105 }; |
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1106 }; |
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1107 |
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1108 // returns function for load event of bird's eye view img |
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1109 var birdImgLoadedHandler = function (data) { |
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1110 return function () { |
| 716 | 1111 var $img = $(this); |
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1112 console.debug("birdimg loaded! this=", this, " data=", data); |
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1113 // create Transform from current area and picsize |
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1114 data.birdTrafo = getImgTrafo($img, FULL_AREA); |
| 661 | 1115 // display red indicator around zoomarea |
| 716 | 1116 renderBirdArea(data); |
| 1117 // enable click and drag | |
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1118 setupBirdDrag(data); |
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1119 }; |
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1120 }; |
| 626 | 1121 |
| 1122 // place marks on the image | |
| 1123 var renderMarks = function (data) { | |
| 640 | 1124 var $elem = data.$elem; |
| 636 | 1125 var marks = data.marks; |
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1126 // clear marks |
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1127 $elem.find('div.mark').remove(); |
| 626 | 1128 for (var i = 0; i < marks.length; i++) { |
| 1129 var mark = marks[i]; | |
| 636 | 1130 if (data.zoomArea.containsPosition(mark)) { |
| 626 | 1131 var mpos = data.imgTrafo.transform(mark); |
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1132 console.debug("renderMarks: mpos=",mpos); |
| 626 | 1133 // create mark |
| 1134 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 1135 var $mark = $(html); | |
| 1136 $elem.append($mark); | |
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1137 mpos.adjustDiv($mark); |
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1138 } |
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1139 } |
| 626 | 1140 }; |
| 648 | 1141 |
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1142 // show zoom area indicator on bird's eye view |
| 716 | 1143 var renderBirdArea = function (data) { |
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1144 var $birdZoom = data.$birdZoom; |
| 652 | 1145 var zoomArea = data.zoomArea; |
| 716 | 1146 var normalSize = isFullArea(zoomArea); |
| 1147 if (normalSize) { | |
| 1148 $birdZoom.hide(); | |
| 1149 return; | |
| 1150 } else { | |
| 1151 $birdZoom.show(); | |
| 1152 } | |
| 723 | 1153 // position may have changed |
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1154 data.birdTrafo = getImgTrafo(data.$birdImg, FULL_AREA); |
| 731 | 1155 var zoomRect = data.birdTrafo.transform(zoomArea); |
| 734 | 1156 // acount for border width |
| 1157 zoomRect.addPosition({x : -2, y : -2}); | |
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1158 if (data.settings.interactionMode === 'fullscreen') { |
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1159 // no animation for fullscreen |
| 731 | 1160 zoomRect.adjustDiv($birdZoom); |
| 716 | 1161 } else { |
| 1162 // nice animation for embedded mode :-) | |
| 734 | 1163 // correct offsetParent because animate doesn't use offset |
| 719 | 1164 var ppos = $birdZoom.offsetParent().offset(); |
| 731 | 1165 var dest = { |
| 1166 left : (zoomRect.x - ppos.left) + 'px', | |
| 1167 top : (zoomRect.y - ppos.top) + 'px', | |
| 1168 width : zoomRect.width, | |
| 1169 height : zoomRect.height}; | |
| 1170 $birdZoom.animate(dest); | |
| 716 | 1171 } |
|
657
b0c6cc4a0932
work on getting transformation to work with rotation (currently still doesn't)
robcast
parents:
656
diff
changeset
|
1172 }; |
| 652 | 1173 |
| 640 | 1174 // zooms by the given factor |
| 636 | 1175 var zoomBy = function(data, factor) { |
| 1176 var area = data.zoomArea; | |
| 1177 var newarea = area.copy(); | |
| 1178 // scale | |
| 1179 newarea.width /= factor; | |
| 1180 newarea.height /= factor; | |
| 1181 // and recenter | |
| 1182 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 1183 newarea.y -= 0.5 * (newarea.height - area.height); | |
|
728
53584f90f66b
improved some embedded buttons; fixed reset function
hertzhaft
parents:
726
diff
changeset
|
1184 newarea = FULL_AREA.fit(newarea); |
| 636 | 1185 data.zoomArea = newarea; |
|
637
71cc855e2e4b
reload doesn't take list of changed parameters any more
robcast
parents:
636
diff
changeset
|
1186 redisplay(data); |
| 636 | 1187 }; |
| 1188 | |
| 640 | 1189 // add a mark where clicked |
| 1190 var setMark = function (data) { | |
| 642 | 1191 var $scaler = data.$scaler; |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1192 // unbind other handler |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1193 $scaler.unbind(".dlZoomDrag"); |
| 640 | 1194 // start event capturing |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1195 $scaler.one('mousedown.dlSetMark', function (evt) { |
| 640 | 1196 // event handler adding a new mark |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1197 console.log("setmark at=", evt); |
|
665
0d3d9517e448
image transform works now under rotation!!! (at least for multiples of 90deg)
robcast
parents:
664
diff
changeset
|
1198 var mpos = geom.position(evt); |
| 640 | 1199 var pos = data.imgTrafo.invtransform(mpos); |
| 1200 data.marks.push(pos); | |
| 1201 redisplay(data); | |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1202 return false; |
| 640 | 1203 }); |
| 1204 }; | |
| 661 | 1205 |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1206 // zoom to the area around two clicked points |
| 647 | 1207 var zoomArea = function(data) { |
| 1208 $elem = data.$elem; | |
| 1209 $scaler = data.$scaler; | |
| 1210 var pt1, pt2; | |
| 1211 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 1212 $elem.append($zoomDiv); | |
| 661 | 1213 $zoomDiv.css(data.settings.zoomrectStyle); |
| 647 | 1214 var picRect = geom.rectangle($scaler); |
| 1215 // FIX ME: is there a way to query the border width from CSS info? | |
| 1216 // rect.x -= 2; // account for overlay borders | |
| 1217 // rect.y -= 2; | |
| 1218 | |
| 1219 var zoomStart = function (evt) { | |
| 1220 pt1 = geom.position(evt); | |
| 1221 // setup and show zoom div | |
| 731 | 1222 pt1.adjustDiv($zoomDiv); |
| 661 | 1223 $zoomDiv.width(0).height(0); |
| 647 | 1224 $zoomDiv.show(); |
| 1225 // register events | |
| 731 | 1226 $elem.bind("mousemove.dlZoomArea", zoomMove); |
| 1227 $elem.bind("mouseup.dlZoomArea", zoomEnd); | |
| 647 | 1228 return false; |
| 1229 }; | |
| 661 | 1230 |
| 734 | 1231 // mouse move handler |
| 1232 var zoomMove = function (evt) { | |
| 1233 pt2 = geom.position(evt); | |
| 1234 var rect = geom.rectangle(pt1, pt2); | |
| 1235 rect.clipTo(picRect); | |
| 1236 // update zoom div | |
| 1237 rect.adjustDiv($zoomDiv); | |
| 1238 return false; | |
| 1239 }; | |
| 1240 | |
| 647 | 1241 // mouseup handler: end moving |
| 1242 var zoomEnd = function (evt) { | |
| 1243 pt2 = geom.position(evt); | |
| 1244 // assume a click and continue if the area is too small | |
| 1245 var clickRect = geom.rectangle(pt1, pt2); | |
| 703 | 1246 if (clickRect.getArea() <= 5) return false; |
| 647 | 1247 // hide zoom div |
| 1248 $zoomDiv.remove(); | |
| 1249 // unregister events | |
| 731 | 1250 $elem.unbind("mousemove.dlZoomArea", zoomMove); |
| 1251 $elem.unbind("mouseup.dlZoomArea", zoomEnd); | |
| 647 | 1252 // clip and transform |
| 1253 clickRect.clipTo(picRect); | |
| 1254 var area = data.imgTrafo.invtransform(clickRect); | |
| 1255 data.zoomArea = area; | |
| 1256 // zoomed is always fit | |
| 1257 data.settings.ws = 1; | |
| 731 | 1258 delete data.dlOpts.fitwidth; |
| 1259 delete data.dlOpts.fitheight; | |
| 647 | 1260 redisplay(data); |
| 1261 return false; | |
| 1262 }; | |
| 661 | 1263 |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1264 // clear old handler (also ZoomDrag) |
| 731 | 1265 $scaler.unbind('.dlZoomArea'); |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1266 $scaler.unbind(".dlZoomDrag"); |
| 731 | 1267 $elem.unbind('.dlZoomArea'); |
| 647 | 1268 // bind start zoom handler |
| 731 | 1269 $scaler.one('mousedown.dlZoomArea', zoomStart); |
| 647 | 1270 }; |
| 640 | 1271 |
| 716 | 1272 // bird's eye view zoom area click and drag handler |
|
725
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1273 var setupBirdDrag = function(data) { |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1274 var $birdImg = data.$birdImg; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1275 var $birdZoom = data.$birdZoom; |
| 723 | 1276 var $document = $(document); |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1277 var startPos, newRect, birdImgRect, birdZoomRect; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1278 |
| 734 | 1279 // mousedown handler: start dragging bird zoom to a new position |
| 1280 var birdZoomStartDrag = function(evt) { | |
| 1281 startPos = geom.position(evt); | |
| 1282 // position may have changed | |
| 1283 data.birdTrafo = getImgTrafo($birdImg, FULL_AREA); | |
| 1284 birdImgRect = geom.rectangle($birdImg); | |
| 1285 birdZoomRect = geom.rectangle($birdZoom); | |
| 1286 newRect = null; | |
| 1287 $document.bind("mousemove.dlBirdMove", birdZoomMove); | |
| 1288 $document.bind("mouseup.dlBirdMove", birdZoomEndDrag); | |
| 1289 $birdZoom.bind("mousemove.dlBirdMove", birdZoomMove); | |
| 1290 $birdZoom.bind("mouseup.dlBirdMove", birdZoomEndDrag); | |
| 1291 return false; | |
| 1292 }; | |
| 1293 | |
| 726 | 1294 // mousemove handler: drag |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1295 var birdZoomMove = function(evt) { |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1296 var pos = geom.position(evt); |
| 723 | 1297 var delta = startPos.delta(pos); |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1298 // move birdZoom div, keeping size |
| 723 | 1299 newRect = birdZoomRect.copy(); |
| 726 | 1300 newRect.addPosition(delta); |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1301 // stay within birdimage |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1302 newRect.stayInside(birdImgRect); |
| 723 | 1303 newRect.adjustDiv($birdZoom); |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1304 return false; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1305 }; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1306 |
| 726 | 1307 // mouseup handler: reload page |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1308 var birdZoomEndDrag = function(evt) { |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1309 var settings = data.settings; |
| 723 | 1310 $document.unbind("mousemove.dlBirdMove", birdZoomMove); |
| 1311 $document.unbind("mouseup.dlBirdMove", birdZoomEndDrag); | |
| 1312 $birdZoom.unbind("mousemove.dlBirdMove", birdZoomMove); | |
| 1313 $birdZoom.unbind("mouseup.dlBirdMove", birdZoomEndDrag); | |
| 1314 if (newRect == null) { | |
| 1315 // no movement happened - set center to click position | |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1316 startPos = birdZoomRect.getCenter(); |
| 723 | 1317 birdZoomMove(evt); |
|
706
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1318 } |
| 723 | 1319 var newArea = data.birdTrafo.invtransform(newRect); |
| 1320 data.zoomArea = newArea; | |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1321 redisplay(data); |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1322 return false; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1323 }; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1324 |
| 723 | 1325 // clear old handler |
| 1326 $document.unbind(".dlBirdMove"); | |
| 1327 $birdImg.unbind(".dlBirdMove"); | |
| 1328 $birdZoom.unbind(".dlBirdMove"); | |
|
725
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1329 if (! isFullArea(data.zoomArea)) { |
|
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1330 // set new handler |
|
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1331 $birdImg.bind("mousedown.dlBirdMove", birdZoomStartDrag); |
|
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1332 $birdZoom.bind("mousedown.dlBirdMove", birdZoomStartDrag); |
|
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1333 } |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1334 }; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1335 |
| 731 | 1336 // setup handlers for dragging the zoomed image |
| 698 | 1337 var setupZoomDrag = function(data) { |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1338 var startPos, delta, fullRect, isBgReady; |
| 726 | 1339 var $document = $(document); |
| 698 | 1340 var $elem = data.$elem; |
| 1341 var $scaler = data.$scaler; | |
| 1342 var $img = data.$img; | |
| 703 | 1343 |
| 726 | 1344 // drag the image and load a new detail on mouse up |
| 698 | 1345 var dragStart = function (evt) { |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1346 console.debug("dragstart at=",evt); |
|
730
98a405711289
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
729
diff
changeset
|
1347 // don't start dragging if not zoomed |
|
98a405711289
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
729
diff
changeset
|
1348 if (isFullArea(data.zoomArea)) return false; |
| 726 | 1349 startPos = geom.position(evt); |
| 734 | 1350 fullRect = null; |
| 1351 delta = null; | |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1352 isBgReady = false; |
| 726 | 1353 $document.bind("mousemove.dlZoomDrag", dragMove); |
| 1354 $document.bind("mouseup.dlZoomDrag", dragEnd); | |
|
706
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1355 return false; |
| 698 | 1356 }; |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1357 |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1358 |
| 726 | 1359 // mousemove handler: drag zoomed image |
| 698 | 1360 var dragMove = function (evt) { |
| 1361 var pos = geom.position(evt); | |
| 734 | 1362 delta = startPos.delta(pos); |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1363 if (!isBgReady) { |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1364 // hide the scaler img, show background of div instead |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1365 $img.css('visibility', 'hidden'); |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1366 var scalerCss = { |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1367 'background-image' : 'url(' + $img.attr('src') + ')', |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1368 'background-repeat' : 'no-repeat', |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1369 'background-position' : 'left top', |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1370 'opacity' : '0.5', |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1371 'cursor' : 'move' |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1372 }; |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1373 if (data.hasBgSize) { |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1374 // full-size background using CSS3-background-size |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1375 fullRect = data.imgTrafo.transform(FULL_AREA); |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1376 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) { |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1377 // correct offset because background is relative |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1378 var scalePos = geom.position($scaler); |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1379 fullRect.addPosition(scalePos.neg()); |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1380 scalerCss['background-image'] = 'url(' + getBirdImgUrl(data) + ')'; |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1381 scalerCss[data.bgSizeName] = fullRect.width + 'px ' + fullRect.height + 'px'; |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1382 scalerCss['background-position'] = fullRect.x + 'px '+ fullRect.y + 'px'; |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1383 } else { |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1384 // too big |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1385 fullRect = null; |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1386 } |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1387 } |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1388 $scaler.css(scalerCss); |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1389 isBgReady = true; |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1390 } |
| 734 | 1391 if (fullRect) { |
| 1392 var bgPos = fullRect.getPosition().add(delta); | |
| 1393 } else { | |
| 1394 var bgPos = delta; | |
| 1395 } | |
| 698 | 1396 // move the background image to the new position |
| 708 | 1397 $scaler.css({ |
| 734 | 1398 'background-position' : bgPos.x + "px " + bgPos.y + "px" |
| 698 | 1399 }); |
| 1400 return false; | |
| 1401 }; | |
| 703 | 1402 |
| 726 | 1403 // mouseup handler: reload zoomed image in new position |
| 698 | 1404 var dragEnd = function (evt) { |
| 732 | 1405 $scaler.css('cursor', 'auto'); |
| 726 | 1406 $document.unbind("mousemove.dlZoomDrag", dragMove); |
| 1407 $document.unbind("mouseup.dlZoomDrag", dragEnd); | |
| 1408 if (delta == null || delta.distance() < 2) { | |
| 1409 // no movement | |
| 1410 $img.css('visibility', 'visible'); | |
| 734 | 1411 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
| 726 | 1412 return false; |
| 1413 } | |
| 1414 // get old zoom area (screen coordinates) | |
| 734 | 1415 var za = geom.rectangle($img); |
| 726 | 1416 // move |
| 734 | 1417 za.addPosition(delta.neg()); |
| 726 | 1418 // transform back |
| 1419 var newArea = data.imgTrafo.invtransform(za); | |
|
728
53584f90f66b
improved some embedded buttons; fixed reset function
hertzhaft
parents:
726
diff
changeset
|
1420 data.zoomArea = FULL_AREA.fit(newArea); |
|
701
2660b733a1e7
img reload works for fullscreen, but somehow not precise
hertzhaft
parents:
700
diff
changeset
|
1421 redisplay(data); |
| 698 | 1422 return false; |
| 1423 }; | |
|
728
53584f90f66b
improved some embedded buttons; fixed reset function
hertzhaft
parents:
726
diff
changeset
|
1424 |
| 726 | 1425 // clear old handler |
| 1426 $document.unbind(".dlZoomDrag"); | |
| 734 | 1427 $scaler.unbind(".dlZoomDrag"); |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1428 if (! isFullArea(data.zoomArea)) { |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1429 // set handler |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
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|
1430 $scaler.bind("mousedown.dlZoomDrag", dragStart); |
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1431 } |
| 698 | 1432 }; |
| 1433 | |
| 696 | 1434 // get image quality as a number (0..2) |
| 1435 var getQuality = function (data) { | |
| 1436 var flags = data.scalerFlags; | |
| 1437 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
| 1438 return parseInt(q[1], 10); | |
| 699 | 1439 }; |
| 696 | 1440 |
| 1441 // set image quality as a number (0..2) | |
| 1442 var setQuality = function (data, qual) { | |
| 1443 var flags = data.scalerFlags; | |
| 1444 // clear flags | |
| 1445 for (var i = 0; i < 3; ++i) { | |
| 1446 delete flags['q'+i]; | |
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1447 } |
| 696 | 1448 flags['q'+qual] = 'q'+qual; |
| 699 | 1449 }; |
| 703 | 1450 |
| 643 | 1451 // sets a key to a value (relative values with +/- if relative=true) |
| 1452 var setNumValue = function(settings, key, value) { | |
| 709 | 1453 if (value == null) return null; |
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1454 if (isNumber(value)) { |
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1455 settings[key] = value; |
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1456 return value; |
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1457 } |
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1458 var sign = value[0]; |
| 643 | 1459 if (sign === '+' || sign === '-') { |
| 1460 if (settings[key] == null) { | |
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1461 // this isn't perfect but still... |
| 643 | 1462 settings[key] = 0; |
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1463 } |
| 643 | 1464 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
| 1465 } else { | |
| 1466 settings[key] = value; | |
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1467 } |
| 643 | 1468 return settings[key]; |
| 1469 }; | |
| 648 | 1470 |
| 1471 // auxiliary function (from old dllib.js) | |
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1472 var isFullArea = function(area) { |
| 652 | 1473 return (area.width === 1.0) && (area.height === 1.0); |
| 648 | 1474 }; |
| 1475 | |
| 634 | 1476 // auxiliary function (from Douglas Crockford, A.10) |
| 1477 var isNumber = function isNumber(value) { | |
| 703 | 1478 return typeof value === 'number' && isFinite(value); |
| 634 | 1479 }; |
| 648 | 1480 |
| 624 | 1481 // auxiliary function to crop senseless precision |
| 1482 var cropFloat = function (x) { | |
| 630 | 1483 return parseInt(10000 * x, 10) / 10000; |
| 624 | 1484 }; |
| 648 | 1485 |
| 685 | 1486 // fallback for console.log calls |
| 1487 if (customConsole) { | |
| 1488 var logFunction = function(type) { | |
| 1489 return function(){ | |
| 1490 var $debug = $('#debug'); // debug div | |
| 1491 if (!$debug) return; | |
| 1492 var args = Array.prototype.slice.call(arguments); | |
| 1493 var argtext = args.join(' '); | |
| 1494 var $logDiv = $('<div/>'); | |
| 1495 $logDiv.addClass(type); | |
| 1496 $logDiv.text(argtext); | |
| 1497 $debug.append($logDiv); | |
| 1498 }; | |
| 1499 }; | |
| 1500 console.log = logFunction('_log'); | |
| 1501 console.debug = logFunction('_debug'); | |
| 1502 console.error = logFunction('_error'); | |
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1503 } |
| 685 | 1504 |
| 598 | 1505 // hook plugin into jquery |
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1506 $.fn.digilib = function(action) { |
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1507 if (actions[action]) { |
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1508 // call action on this with the remaining arguments (inserting data as first argument) |
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1509 var $elem = $(this); |
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1510 var data = $elem.data('digilib'); |
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1511 var args = Array.prototype.slice.call(arguments, 1); |
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1512 args.unshift(data); |
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1513 return actions[action].apply(this, args); |
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1514 } else if (typeof(action) === 'object' || !action) { |
| 627 | 1515 // call init on this |
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1516 return actions.init.apply(this, arguments); |
| 598 | 1517 } else { |
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1518 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
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1519 } |
| 598 | 1520 }; |
| 685 | 1521 |
| 597 | 1522 })(jQuery); |