Mercurial > hg > digilib-old
annotate client/digitallibrary/jquery/jquery.digilib.js @ 752:fce27a005445 jquery
clean up imports
| author | robcast |
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| date | Sat, 05 Feb 2011 22:48:57 +0100 |
| parents | 00b7857f07f5 |
| children | ce5a0e6b5ee9 |
| 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 /** |
| 604 | 21 * digilib jQuery plugin |
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22 **/ |
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23 |
| 655 | 24 |
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25 /* jslint browser: true, debug: true, forin: true |
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26 */ |
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27 |
| 636 | 28 // fallback for console.log calls |
| 29 if (typeof(console) === 'undefined') { | |
| 30 var console = { | |
| 692 | 31 log : function(){}, |
| 32 debug : function(){}, | |
| 33 error : function(){} | |
| 34 }; | |
| 35 var customConsole = true; | |
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36 } |
| 604 | 37 |
| 38 (function($) { | |
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39 var buttons = { |
| 610 | 40 reference : { |
| 689 | 41 onclick : "reference", |
| 610 | 42 tooltip : "get a reference URL", |
| 43 img : "reference.png" | |
| 44 }, | |
| 45 zoomin : { | |
| 643 | 46 onclick : ["zoomBy", 1.4], |
| 610 | 47 tooltip : "zoom in", |
| 48 img : "zoom-in.png" | |
| 49 }, | |
| 50 zoomout : { | |
| 643 | 51 onclick : ["zoomBy", 0.7], |
| 610 | 52 tooltip : "zoom out", |
| 53 img : "zoom-out.png" | |
| 54 }, | |
| 55 zoomarea : { | |
| 654 | 56 onclick : "zoomArea", |
| 610 | 57 tooltip : "zoom area", |
| 58 img : "zoom-area.png" | |
| 59 }, | |
| 60 zoomfull : { | |
| 650 | 61 onclick : "zoomFull", |
| 610 | 62 tooltip : "view the whole image", |
| 63 img : "zoom-full.png" | |
| 64 }, | |
| 65 pagewidth : { | |
| 650 | 66 onclick : ["zoomFull", "width"], |
| 610 | 67 tooltip : "page width", |
| 68 img : "pagewidth.png" | |
| 69 }, | |
| 70 back : { | |
| 623 | 71 onclick : ["gotoPage", "-1"], |
| 610 | 72 tooltip : "goto previous image", |
| 73 img : "back.png" | |
| 74 }, | |
| 75 fwd : { | |
| 623 | 76 onclick : ["gotoPage", "+1"], |
| 610 | 77 tooltip : "goto next image", |
| 78 img : "fwd.png" | |
| 79 }, | |
| 80 page : { | |
| 716 | 81 onclick : "gotoPage", |
| 82 tooltip : "goto image number", | |
| 610 | 83 img : "page.png" |
| 84 }, | |
| 85 bird : { | |
| 635 | 86 onclick : "showBirdDiv", |
| 610 | 87 tooltip : "show bird's eye view", |
| 88 img : "birds-eye.png" | |
| 89 }, | |
| 90 help : { | |
| 635 | 91 onclick : "showAboutDiv", |
| 610 | 92 tooltip : "about Digilib", |
| 93 img : "help.png" | |
| 94 }, | |
| 95 reset : { | |
| 688 | 96 onclick : "reset", |
| 610 | 97 tooltip : "reset image", |
| 98 img : "reset.png" | |
| 99 }, | |
| 100 mark : { | |
| 647 | 101 onclick : "setMark", |
| 610 | 102 tooltip : "set a mark", |
| 103 img : "mark.png" | |
| 104 }, | |
| 105 delmark : { | |
| 650 | 106 onclick : "removeMark", |
| 610 | 107 tooltip : "delete the last mark", |
| 108 img : "delmark.png" | |
| 109 }, | |
| 110 hmir : { | |
| 661 | 111 onclick : ["mirror", "h"], |
| 610 | 112 tooltip : "mirror horizontally", |
| 113 img : "mirror-horizontal.png" | |
| 114 }, | |
| 115 vmir : { | |
| 661 | 116 onclick : ["mirror", "v"], |
| 610 | 117 tooltip : "mirror vertically", |
| 118 img : "mirror-vertical.png" | |
| 119 }, | |
| 120 rot : { | |
| 663 | 121 onclick : "rotate", |
| 610 | 122 tooltip : "rotate image", |
| 123 img : "rotate.png" | |
| 124 }, | |
| 125 brgt : { | |
| 663 | 126 onclick : "brightness", |
| 610 | 127 tooltip : "set brightness", |
| 128 img : "brightness.png" | |
| 129 }, | |
| 130 cont : { | |
| 663 | 131 onclick : "contrast", |
| 610 | 132 tooltip : "set contrast", |
| 133 img : "contrast.png" | |
| 134 }, | |
| 135 rgb : { | |
| 136 onclick : "javascript:setParamWin('rgb', '...')", | |
| 137 tooltip : "set rgb values", | |
| 138 img : "rgb.png" | |
| 139 }, | |
| 140 quality : { | |
| 748 | 141 onclick : "setQuality", |
| 610 | 142 tooltip : "set image quality", |
| 143 img : "quality.png" | |
| 144 }, | |
| 145 size : { | |
| 146 onclick : "javascript:toggleSizeMenu()", | |
| 147 tooltip : "set page size", | |
| 148 img : "size.png" | |
| 149 }, | |
| 150 calibrationx : { | |
| 151 onclick : "javascript:calibrate('x')", | |
| 152 tooltip : "calibrate screen x-ratio", | |
| 153 img : "calibration-x.png" | |
| 154 }, | |
| 155 scale : { | |
| 156 onclick : "javascript:toggleScaleMenu()", | |
| 157 tooltip : "change image scale", | |
| 158 img : "original-size.png" | |
| 159 }, | |
| 699 | 160 toggleoptions : { |
| 748 | 161 onclick : "moreButtons", |
| 699 | 162 tooltip : "more options", |
| 163 img : "options.png" | |
| 164 }, | |
| 690 | 165 moreoptions : { |
| 748 | 166 onclick : ["moreButtons", "+1"], |
| 690 | 167 tooltip : "more options", |
| 168 img : "options.png" | |
| 169 }, | |
| 170 lessoptions : { | |
| 748 | 171 onclick : ["moreButtons", "-1"], |
| 690 | 172 tooltip : "less options", |
| 610 | 173 img : "options.png" |
| 174 }, | |
| 175 SEP : { | |
| 176 img : "sep.png" | |
| 177 } | |
| 178 }; | |
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179 |
| 605 | 180 var defaults = { |
| 616 | 181 // version of this script |
| 635 | 182 'version' : 'jquery.digilib.js 0.9', |
| 616 | 183 // logo url |
| 184 'logoUrl' : '../img/digilib-logo-text1.png', | |
| 635 | 185 // homepage url (behind logo) |
| 186 'homeUrl' : 'http://digilib.berlios.de', | |
| 744 | 187 // base URL to digilib viewer (for reference URLs) |
| 188 'digilibBaseUrl' : null, | |
| 610 | 189 // base URL to Scaler servlet |
| 652 | 190 'scalerBaseUrl' : null, |
| 610 | 191 // list of Scaler parameters |
| 627 | 192 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
| 193 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
| 194 // Scaler parameter defaults | |
| 643 | 195 'pn' : 1, |
| 627 | 196 'ww' : 1.0, |
| 197 'wh' : 1.0, | |
| 198 'wx' : 0.0, | |
| 199 'wy' : 0.0, | |
| 200 'ws' : 1.0, | |
| 643 | 201 'mo' : '', |
| 202 'rot' : 0, | |
| 203 'cont' : 0, | |
| 204 'brgt' : 0, | |
| 205 'rgbm' : '0/0/0', | |
| 206 'rgba' : '0/0/0', | |
| 207 'ddpi' : null, | |
| 208 'ddpix' : null, | |
| 209 'ddpiy' : null, | |
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210 // list of digilib parameters |
| 650 | 211 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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212 // digilib parameter defaults |
| 643 | 213 'mk' : '', |
| 650 | 214 'clop' : '', |
| 643 | 215 // mode of operation: |
| 216 // fullscreen = take parameters from page URL, keep state in page URL | |
| 217 // embedded = take parameters from Javascript options, keep state inside object | |
| 610 | 218 'interactionMode' : 'fullscreen', |
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219 // buttons |
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220 'buttons' : buttons, |
| 668 | 221 // defaults for digilib buttons |
| 665 | 222 'buttonSettings' : { |
| 223 'fullscreen' : { | |
| 668 | 224 // path to button images (must end with a slash) |
| 665 | 225 'imagePath' : 'img/fullscreen/', |
| 721 | 226 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","help","reset","toggleoptions"], |
| 227 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","toggleoptions"], | |
| 682 | 228 'buttonSets' : ['standardSet', 'specialSet'] |
| 665 | 229 }, |
| 230 'embedded' : { | |
| 231 'imagePath' : 'img/embedded/16/', | |
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232 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","bird","help","reset","toggleoptions"], |
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233 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","toggleoptions"], |
| 682 | 234 'buttonSets' : ['standardSet', 'specialSet'] |
| 665 | 235 } |
| 697 | 236 }, |
| 237 // number of visible button groups | |
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238 'visibleButtonSets' : 1, |
| 616 | 239 // is birdView shown? |
| 240 'isBirdDivVisible' : false, | |
| 668 | 241 // dimensions of bird's eye div |
| 674 | 242 'birdDivWidth' : 200, |
| 243 'birdDivHeight' : 200, | |
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244 // parameters used by bird's eye div |
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245 'birdDivParams' : ['fn','pn','dw','dh'], |
| 668 | 246 // style of the zoom area indicator in the bird's eye div |
| 659 | 247 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
| 668 | 248 // style of zoom area "rubber band" |
| 249 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
| 616 | 250 // is the "about" window shown? |
| 741 | 251 'isAboutDivVisible' : false, |
| 252 // maximum width of background image for drag-scroll | |
| 253 'maxBgSize' : 10000 | |
| 616 | 254 |
| 610 | 255 }; |
| 655 | 256 |
| 608 | 257 // affine geometry classes |
| 258 var geom = dlGeometry(); | |
| 655 | 259 |
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260 var FULL_AREA = geom.rectangle(0, 0, 1, 1); |
| 655 | 261 |
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262 var actions = { |
| 668 | 263 // init: digilib initialization |
| 264 init : function(options) { | |
| 265 // settings for this digilib instance are merged from defaults and options | |
| 266 var settings = $.extend({}, defaults, options); | |
| 267 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
| 268 var queryParams = {}; | |
| 269 if (isFullscreen) { | |
| 270 queryParams = parseQueryParams(); | |
| 271 // check scalerBaseUrl | |
| 272 if (settings.scalerBaseUrl == null) { | |
| 273 // try the host this came from | |
| 274 var h = window.location.host; | |
| 275 if (window.location.host) { | |
| 276 var url = window.location.href; | |
| 277 // assume the page lives in [webapp]/jquery/ | |
| 278 var pos = url.indexOf('jquery/'); | |
| 279 if (pos > 0) { | |
| 280 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
| 652 | 281 } |
| 282 } | |
| 636 | 283 } |
| 668 | 284 } |
| 285 return this.each(function() { | |
| 286 var $elem = $(this); | |
| 287 var data = $elem.data('digilib'); | |
| 688 | 288 var params, elemSettings; |
| 668 | 289 // if the plugin hasn't been initialized yet |
| 290 if (!data) { | |
| 291 // merge query parameters | |
| 292 if (isFullscreen) { | |
| 688 | 293 params = queryParams; |
| 668 | 294 } else { |
| 688 | 295 params = parseImgParams($elem); |
| 727 | 296 if (jQuery.cookie) { |
| 297 // retrieve params from cookie | |
| 298 var ck = "digilib-embed:fn:" + escape(params.fn) + ":pn:" + (params.pn || '1'); | |
| 299 var cs = jQuery.cookie(ck); | |
| 300 console.debug("get cookie=", ck, " value=", cs); | |
| 301 if (cs) { | |
| 302 var cp = parseQueryString(cs); | |
| 728 | 303 // ignore fn and pn from cookie TODO: should we keep pn? |
| 304 delete cp.fn; | |
| 305 delete cp.pn; | |
| 306 jQuery.extend(params, cp); | |
| 727 | 307 } |
| 308 } | |
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309 } |
| 668 | 310 // store $(this) element in the settings |
| 728 | 311 elemSettings = jQuery.extend({}, settings, params); |
| 697 | 312 data = { |
| 668 | 313 $elem : $elem, |
| 314 settings : elemSettings, | |
| 688 | 315 queryParams : params |
| 668 | 316 }; |
| 317 // store in data element | |
| 318 $elem.data('digilib', data); | |
| 319 } | |
| 320 unpackParams(data); | |
| 744 | 321 // check if browser knows *background-size |
| 741 | 322 for (var bs in {'':1, '-moz-':1, '-webkit-':1, '-o-':1}) { |
| 323 if ($elem.css(bs+'background-size')) { | |
| 324 data.hasBgSize = true; | |
| 325 data.bgSizeName = bs+'background-size'; | |
| 326 break; | |
| 327 } | |
| 328 } | |
| 744 | 329 // check digilib base URL |
| 330 if (elemSettings.digilibBaseUrl == null) { | |
| 331 if (isFullscreen) { | |
| 332 // take current host | |
| 333 var url = window.location.toString(); | |
| 334 var pos = url.indexOf('?'); | |
| 335 elemSettings.digilibBaseUrl = url.substring(0, pos); | |
| 336 } else { | |
| 337 var url = elemSettings.scalerBaseUrl; | |
| 338 if (url) { | |
| 339 // build it from scaler URL | |
| 340 var bp = url.indexOf('/servlet/Scaler'); | |
| 341 elemSettings.digilibBaseUrl = url.substring(0, bp) + '/digilib.jsp'; | |
| 342 } | |
| 343 } | |
| 344 } | |
| 682 | 345 // create HTML structure for scaler |
| 668 | 346 setupScalerDiv(data); |
| 697 | 347 // add buttons |
| 348 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { | |
| 349 showButtons(data, true, i); | |
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350 } |
| 668 | 351 // bird's eye view creation |
| 710 | 352 if (elemSettings.isBirdDivVisible) { |
| 638 | 353 setupBirdDiv(data); |
| 723 | 354 data.$birdDiv.show(); |
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355 } |
| 668 | 356 // about window creation - TODO: could be deferred? restrict to only one item? |
| 357 setupAboutDiv(data); | |
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358 // drag zoom area around in scaler div |
| 707 | 359 setupZoomDrag(data); |
| 668 | 360 }); |
| 361 }, | |
| 362 | |
| 363 // destroy: clean up digilib | |
| 364 destroy : function(data) { | |
| 365 return this.each(function(){ | |
| 366 var $elem = $(this); | |
| 367 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
| 368 data.digilib.remove(); | |
| 369 $elem.removeData('digilib'); | |
| 370 }); | |
| 371 }, | |
| 372 | |
| 373 // show or hide the 'about' window | |
| 374 showAboutDiv : function(data, show) { | |
| 375 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
| 376 }, | |
| 655 | 377 |
| 668 | 378 // event handler: toggles the visibility of the bird's eye window |
| 379 showBirdDiv : function (data, show) { | |
| 726 | 380 var settings = data.settings; |
| 668 | 381 if (data.$birdDiv == null) { |
| 382 // no bird div -> create | |
| 383 setupBirdDiv(data); | |
| 384 } | |
| 726 | 385 settings.isBirdDivVisible = showDiv(settings.isBirdDivVisible, data.$birdDiv, show); |
| 386 updateBirdDiv(data); | |
| 723 | 387 storeOptions(data); |
| 388 // data.$birdImg.triggerHandler('load'); // TODO: we shouldn't do that | |
| 668 | 389 }, |
| 390 | |
| 391 // goto given page nr (+/-: relative) | |
| 392 gotoPage : function (data, pageNr) { | |
| 393 var settings = data.settings; | |
| 394 var oldpn = settings.pn; | |
| 716 | 395 if (pageNr == null) { |
| 396 pageNr = window.prompt("Goto page number", oldpn); | |
| 397 } | |
| 668 | 398 var pn = setNumValue(settings, "pn", pageNr); |
| 399 if (pn == null) return false; // nothing happened | |
| 400 if (pn < 1) { | |
| 401 alert("no such page (page number too low)"); | |
| 402 settings.pn = oldpn; | |
| 403 return false; | |
| 404 } | |
| 405 if (settings.pt) { | |
| 406 if (pn > settings.pt) { | |
| 407 alert("no such page (page number too high)"); | |
| 623 | 408 settings.pn = oldpn; |
| 409 return false; | |
| 634 | 410 } |
| 668 | 411 } |
| 412 // reset mk and others(?) | |
| 413 data.marks = []; | |
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414 data.zoomArea = FULL_AREA; |
| 668 | 415 // then reload |
| 416 redisplay(data); | |
| 417 }, | |
| 654 | 418 |
| 668 | 419 // zoom by a given factor |
| 420 zoomBy : function (data, factor) { | |
| 421 zoomBy(data, factor); | |
| 422 }, | |
| 647 | 423 |
| 668 | 424 // zoom interactively |
| 425 zoomArea : function (data) { | |
| 426 zoomArea(data); | |
| 427 }, | |
| 650 | 428 |
| 668 | 429 // zoom out to full page |
| 430 zoomFull : function (data, mode) { | |
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431 data.zoomArea = FULL_AREA; |
| 668 | 432 if (mode === 'width') { |
| 433 data.dlOpts.fitwidth = 1; | |
| 434 delete data.dlOpts.fitheight; | |
| 435 } else if (mode === 'height') { | |
| 436 data.dlOpts.fitheight = 1; | |
| 437 delete data.dlOpts.fitwidth; | |
| 438 } else { | |
| 439 delete data.dlOpts.fitwidth; | |
| 440 delete data.dlOpts.fitheight; | |
| 441 } | |
| 442 redisplay(data); | |
| 443 }, | |
| 444 | |
| 445 // set a mark by clicking (or giving a position) | |
| 446 setMark : function (data, mpos) { | |
| 447 if (mpos == null) { | |
| 448 // interactive | |
| 449 setMark(data); | |
| 450 } else { | |
| 451 // use position | |
| 452 data.marks.push(pos); | |
| 663 | 453 redisplay(data); |
| 604 | 454 } |
| 668 | 455 }, |
| 456 | |
| 457 // remove the last mark | |
| 458 removeMark : function (data) { | |
| 459 data.marks.pop(); | |
| 460 redisplay(data); | |
| 461 }, | |
| 462 | |
| 463 // mirror the image | |
| 464 mirror : function (data, mode) { | |
| 465 var flags = data.scalerFlags; | |
| 466 if (mode === 'h') { | |
| 467 if (flags.hmir) { | |
| 468 delete flags.hmir; | |
| 469 } else { | |
| 470 flags.hmir = 1; | |
| 471 } | |
| 472 } else { | |
| 473 if (flags.vmir) { | |
| 474 delete flags.vmir; | |
| 475 } else { | |
| 476 flags.vmir = 1; | |
| 477 } | |
| 478 } | |
| 479 redisplay(data); | |
| 480 }, | |
| 650 | 481 |
| 668 | 482 // rotate the image |
| 483 rotate : function (data, angle) { | |
| 484 var rot = data.settings.rot; | |
| 485 if (angle == null) { | |
| 486 angle = window.prompt("Rotation angle:", rot); | |
| 487 } | |
| 488 data.settings.rot = angle; | |
| 489 redisplay(data); | |
| 490 }, | |
| 491 | |
| 492 // change brightness | |
| 493 brightness : function (data, factor) { | |
| 494 var brgt = data.settings.brgt; | |
| 495 if (factor == null) { | |
| 496 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 497 } | |
| 498 data.settings.brgt = factor; | |
| 499 redisplay(data); | |
| 500 }, | |
| 501 | |
| 502 // change contrast | |
| 503 contrast : function (data, factor) { | |
| 504 var cont = data.settings.cont; | |
| 505 if (factor == null) { | |
| 506 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 507 } | |
| 508 data.settings.cont = factor; | |
| 509 redisplay(data); | |
| 688 | 510 }, |
| 710 | 511 |
| 690 | 512 // display more (or less) button sets |
| 748 | 513 moreButtons : function (data, more) { |
| 696 | 514 var settings = data.settings; |
| 699 | 515 if (more == null) { |
| 703 | 516 // toggle more or less (only works for 2 sets) |
| 699 | 517 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
| 518 if (settings.visibleButtonSets >= maxbtns) { | |
| 519 more = '-1'; | |
| 520 } else { | |
| 521 more = '+1'; | |
| 522 } | |
| 523 } | |
| 690 | 524 if (more === '-1') { |
| 525 // remove set | |
| 697 | 526 var setIdx = settings.visibleButtonSets - 1; |
| 527 if (showButtons(data, false, setIdx, true)) { | |
| 528 settings.visibleButtonSets--; | |
| 529 } | |
| 690 | 530 } else { |
| 531 // add set | |
| 697 | 532 var setIdx = settings.visibleButtonSets; |
| 533 if (showButtons(data, true, setIdx, true)) { | |
| 534 settings.visibleButtonSets++; | |
| 690 | 535 } |
| 536 } | |
| 723 | 537 // persist setting |
| 538 storeOptions(data); | |
| 691 | 539 }, |
| 688 | 540 |
| 703 | 541 // reset image parameters to defaults |
| 688 | 542 reset : function (data) { |
| 543 var settings = data.settings; | |
| 544 var paramNames = settings.digilibParamNames; | |
| 545 var params = data.queryParams; | |
| 546 // delete all digilib parameters | |
| 547 for (var i = 0; i < paramNames.length; i++) { | |
| 548 var paramName = paramNames[i]; | |
| 549 delete settings[paramName]; | |
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550 } |
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551 settings.fn = params.fn || ''; // no default defined |
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552 settings.pn = params.pn || defaults.pn; |
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553 settings.dw = params.dw; |
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554 settings.dh = params.dh; |
| 709 | 555 settings.isBirdDivVisible = false; |
| 556 settings.visibleButtonSets = 1; | |
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557 // resets zoomArea, marks, scalerflags |
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558 data.zoomArea = FULL_AREA; |
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559 data.marks = []; |
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560 data.scalerFlags = {}; |
| 712 | 561 delete data.dlOpts.fitwidth; |
| 562 delete data.dlOpts.fitheight; | |
| 688 | 563 redisplay(data); |
| 689 | 564 }, |
| 565 | |
| 703 | 566 // presents a reference url (returns value if noprompt) |
| 567 reference : function (data, noprompt) { | |
| 689 | 568 var settings = data.settings; |
| 744 | 569 var url = getDigilibUrl(data); |
| 703 | 570 if (noprompt == null) { |
| 571 window.prompt("URL reference to the current view", url); | |
| 572 } | |
| 573 return url; | |
| 574 }, | |
| 710 | 575 |
| 703 | 576 // set image quality |
| 748 | 577 setQuality : function (data, qual) { |
| 703 | 578 var oldq = getQuality(data); |
| 579 if (qual == null) { | |
| 580 qual = window.prompt("Image quality (0..2)", oldq); | |
| 581 } | |
| 582 qual = parseInt(qual, 10); | |
| 583 if (qual >= 0 && qual <= 2) { | |
| 584 setQuality(data, qual); | |
| 585 redisplay(data); | |
| 586 } | |
| 668 | 587 } |
| 605 | 588 }; |
| 604 | 589 |
| 608 | 590 // returns parameters from page url |
| 607 | 591 var parseQueryParams = function() { |
| 636 | 592 return parseQueryString(window.location.search.slice(1)); |
| 593 }; | |
| 655 | 594 |
| 636 | 595 // returns parameters from embedded img-element |
| 607 | 596 var parseImgParams = function($elem) { |
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597 var src = $elem.find('img').first().attr('src'); |
| 710 | 598 if (!src) return null; |
| 607 | 599 var pos = src.indexOf('?'); |
| 600 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 601 var scalerUrl = src.substring(0, pos); | |
| 627 | 602 var params = parseQueryString(query); |
| 603 params.scalerBaseUrl = scalerUrl; | |
| 604 return params; | |
| 636 | 605 }; |
| 607 | 606 |
| 608 | 607 // parses query parameter string into parameter object |
| 607 | 608 var parseQueryString = function(query) { |
| 701 | 609 var params = {}; |
| 610 if (query == null) return params; | |
| 607 | 611 var pairs = query.split("&"); |
| 636 | 612 //var keys = []; |
| 607 | 613 for (var i = 0; i < pairs.length; i++) { |
| 614 var pair = pairs[i].split("="); | |
| 615 if (pair.length === 2) { | |
| 627 | 616 params[pair[0]] = pair[1]; |
| 636 | 617 //keys.push(pair[0]); |
| 634 | 618 } |
| 636 | 619 } |
| 627 | 620 return params; |
| 636 | 621 }; |
| 668 | 622 |
| 643 | 623 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 624 var getParamString = function (settings, keys, defaults) { | |
| 615 | 625 var paramString = ''; |
| 650 | 626 var nx = false; |
| 615 | 627 for (i = 0; i < keys.length; ++i) { |
| 628 var key = keys[i]; | |
| 663 | 629 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 615 | 630 // first param gets no '&' |
| 650 | 631 if (nx) { |
| 632 paramString += '&'; | |
| 633 } else { | |
| 634 nx = true; | |
| 635 } | |
| 615 | 636 // add parm=val |
| 637 paramString += key + '=' + settings[key]; | |
| 643 | 638 } |
| 615 | 639 } |
| 640 return paramString; | |
| 631 | 641 }; |
| 642 | |
| 636 | 643 // returns URL and query string for Scaler |
| 644 var getScalerUrl = function (data) { | |
| 741 | 645 packParams(data); |
| 653 | 646 var settings = data.settings; |
| 652 | 647 if (settings.scalerBaseUrl == null) { |
| 648 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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649 } |
| 636 | 650 var keys = settings.scalerParamNames; |
| 643 | 651 var queryString = getParamString(settings, keys, defaults); |
| 636 | 652 var url = settings.scalerBaseUrl + '?' + queryString; |
| 653 return url; | |
| 654 }; | |
| 655 | |
| 741 | 656 // returns URL for bird's eye view image |
| 743 | 657 var getBirdImgUrl = function (data, moreParams) { |
| 741 | 658 var settings = data.settings; |
| 659 var birdDivOptions = { | |
| 660 dw : settings.birdDivWidth, | |
| 661 dh : settings.birdDivHeight | |
| 662 }; | |
| 743 | 663 var birdSettings = jQuery.extend({}, settings, birdDivOptions); |
| 741 | 664 // use only the relevant parameters |
| 743 | 665 if (moreParams == null) { |
| 666 var params = getParamString(birdSettings, settings.birdDivParams, defaults); | |
| 667 } else { | |
| 668 var params = getParamString(birdSettings, | |
| 669 settings.birdDivParams.concat(moreParams), defaults); | |
| 670 } | |
| 671 var url = settings.scalerBaseUrl + '?' + params; | |
| 741 | 672 return url; |
| 673 }; | |
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674 |
| 636 | 675 // returns URL and query string for current digilib |
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676 var getDigilibUrl = function (data) { |
| 643 | 677 packParams(data); |
| 636 | 678 var settings = data.settings; |
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679 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 744 | 680 return settings.digilibBaseUrl + '?' + queryString; |
| 636 | 681 }; |
| 682 | |
| 655 | 683 // processes some parameters into objects and stuff |
| 631 | 684 var unpackParams = function (data) { |
| 685 var settings = data.settings; | |
| 636 | 686 // zoom area |
| 631 | 687 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 643 | 688 data.zoomArea = zoomArea; |
| 636 | 689 // marks |
| 631 | 690 var marks = []; |
| 650 | 691 if (settings.mk) { |
| 692 var mk = settings.mk; | |
| 693 if (mk.indexOf(";") >= 0) { | |
| 694 var pa = mk.split(";"); // old format with ";" | |
| 695 } else { | |
| 696 var pa = mk.split(","); // new format | |
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697 } |
| 650 | 698 for (var i = 0; i < pa.length ; i++) { |
| 699 var pos = pa[i].split("/"); | |
| 700 if (pos.length > 1) { | |
| 701 marks.push(geom.position(pos[0], pos[1])); | |
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702 } |
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703 } |
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704 } |
| 643 | 705 data.marks = marks; |
| 650 | 706 // mo (Scaler flags) |
| 707 var flags = {}; | |
| 708 if (settings.mo) { | |
| 709 var pa = settings.mo.split(","); | |
| 710 for (var i = 0; i < pa.length ; i++) { | |
| 711 flags[pa[i]] = pa[i]; | |
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712 } |
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713 } |
| 650 | 714 data.scalerFlags = flags; |
| 723 | 715 retrieveOptions(data); |
| 655 | 716 }; |
| 717 | |
| 631 | 718 // put objects back into parameters |
| 719 var packParams = function (data) { | |
| 720 var settings = data.settings; | |
| 636 | 721 // zoom area |
| 643 | 722 if (data.zoomArea) { |
| 647 | 723 settings.wx = cropFloat(data.zoomArea.x); |
| 724 settings.wy = cropFloat(data.zoomArea.y); | |
| 725 settings.ww = cropFloat(data.zoomArea.width); | |
| 726 settings.wh = cropFloat(data.zoomArea.height); | |
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727 } |
| 636 | 728 // marks |
| 643 | 729 if (data.marks) { |
| 650 | 730 settings.mk = ''; |
| 643 | 731 for (var i = 0; i < data.marks.length; i++) { |
| 650 | 732 if (i) { |
| 733 settings.mk += ','; | |
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734 } |
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735 settings.mk += cropFloat(data.marks[i].x).toString() + |
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736 '/' + cropFloat(data.marks[i].y).toString(); |
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737 } |
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738 } |
| 650 | 739 // Scaler flags |
| 740 if (data.scalerFlags) { | |
| 741 var mo = ''; | |
| 742 for (var f in data.scalerFlags) { | |
| 743 if (mo) { | |
| 744 mo += ','; | |
| 745 } | |
| 746 mo += f; | |
| 747 } | |
| 748 settings.mo = mo; | |
| 749 } | |
| 710 | 750 // user interface options |
| 723 | 751 storeOptions(data); |
| 709 | 752 }; |
| 688 | 753 |
| 723 | 754 var storeOptions = function (data) { |
| 701 | 755 // save digilib options in cookie |
| 709 | 756 var settings = data.settings; |
| 757 if (data.dlOpts) { | |
| 758 // save digilib settings in options | |
| 759 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
| 760 data.dlOpts.buttons = settings.visibleButtonSets; | |
| 761 var clop = ''; | |
| 762 for (var o in data.dlOpts) { | |
| 763 if (clop) { | |
| 764 clop += '&'; | |
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765 } |
| 709 | 766 clop += o + '=' + data.dlOpts[o]; |
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767 } |
| 709 | 768 if (jQuery.cookie) { |
| 769 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 770 console.debug("set cookie=", ck, " value=", clop); | |
| 771 jQuery.cookie(ck, clop); | |
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772 } |
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773 } |
| 727 | 774 if (settings.interactionMode !== 'fullscreen' && jQuery.cookie) { |
| 775 // store normal parameters in cookie for embedded mode | |
| 776 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
| 777 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 778 console.debug("set cookie=", ck, " value=", qs); | |
| 779 jQuery.cookie(ck, qs); | |
| 780 } | |
| 631 | 781 }; |
| 655 | 782 |
| 723 | 783 var retrieveOptions = function (data) { |
| 709 | 784 // clop (digilib options) |
| 785 var opts = {}; | |
| 786 var settings = data.settings; | |
| 787 if (jQuery.cookie) { | |
| 788 // read from cookie | |
| 789 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 790 var cp = jQuery.cookie(ck); | |
| 791 console.debug("get cookie=", ck, " value=", cp); | |
| 792 // in query string format | |
| 793 opts = parseQueryString(cp); | |
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794 } |
| 709 | 795 data.dlOpts = opts; |
| 796 // birdview option | |
| 797 if (opts.birdview != null) { | |
| 798 settings.isBirdDivVisible = opts.birdview === '1'; | |
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799 } |
| 709 | 800 // visible button sets |
| 801 if (opts.buttons != null) { | |
| 802 settings.visibleButtonSets = opts.buttons; | |
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803 } |
| 711 | 804 }; |
| 709 | 805 |
| 622 | 806 // (re)load the img from a new scaler URL |
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807 var redisplay = function (data) { |
| 636 | 808 var settings = data.settings; |
| 809 if (settings.interactionMode === 'fullscreen') { | |
| 810 // update location.href (browser URL) in fullscreen mode | |
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811 var url = getDigilibUrl(data); |
| 636 | 812 var history = window.history; |
| 813 if (typeof(history.pushState) === 'function') { | |
| 814 console.debug("we could modify history, but we don't..."); | |
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815 } |
| 636 | 816 window.location = url; |
| 817 } else { | |
| 818 // embedded mode -- just change img src | |
| 819 var url = getScalerUrl(data); | |
| 820 data.$img.attr('src', url); | |
| 726 | 821 // redisplay bird img |
| 822 updateBirdDiv(data); | |
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823 } |
| 622 | 824 }; |
| 825 | |
| 662 | 826 // returns maximum size for scaler img in fullscreen mode |
| 827 var getFullscreenImgSize = function($elem) { | |
| 828 var $win = $(window); | |
| 829 var winH = $win.height(); | |
| 830 var winW = $win.width(); | |
| 831 // TODO: account for borders? | |
| 832 return geom.size(winW, winH); | |
| 833 }; | |
| 834 | |
| 608 | 835 // creates HTML structure for digilib in elem |
| 627 | 836 var setupScalerDiv = function (data) { |
| 837 var settings = data.settings; | |
| 647 | 838 var $elem = data.$elem; |
| 725 | 839 $elem.addClass('digilib'); |
| 728 | 840 var $img; |
| 841 var scalerUrl; | |
| 608 | 842 if (settings.interactionMode === 'fullscreen') { |
| 728 | 843 // fullscreen |
| 725 | 844 $elem.addClass('dl_fullscreen'); |
| 609 | 845 var imgSize = getFullscreenImgSize($elem); |
| 650 | 846 // fitwidth/height omits destination height/width |
| 728 | 847 if (data.dlOpts.fitheight == null) { |
| 650 | 848 settings.dw = imgSize.width; |
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849 } |
| 728 | 850 if (data.dlOpts.fitwidth == null) { |
| 650 | 851 settings.dh = imgSize.height; |
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852 } |
| 686 | 853 scalerUrl = getScalerUrl(data); |
| 728 | 854 $img = $('<img/>'); |
| 609 | 855 } else { |
| 728 | 856 // embedded mode -- try to keep img tag |
| 725 | 857 $elem.addClass('dl_embedded'); |
| 728 | 858 scalerUrl = getScalerUrl(data); |
| 623 | 859 $img = $elem.find('img'); |
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860 if ($img.length > 0) { |
| 728 | 861 oldUrl = $img.attr('src'); |
| 862 if (oldUrl === scalerUrl) { | |
| 863 console.debug("img detach:", $img); | |
| 864 $img.detach(); | |
| 865 } else { | |
| 866 $img = $('<img/>'); | |
| 867 } | |
|
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868 } else { |
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869 $img = $('<img/>'); |
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870 } |
| 608 | 871 } |
|
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872 // create new html |
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873 $elem.empty(); // TODO: should we keep stuff for customization? |
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874 var $scaler = $('<div class="scaler"/>'); |
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875 $elem.append($scaler); |
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876 $scaler.append($img); |
| 622 | 877 $img.addClass('pic'); |
| 649 | 878 data.$scaler = $scaler; |
| 636 | 879 data.$img = $img; |
| 687 | 880 // setup image load handler before setting the src attribute (IE bug) |
| 881 $img.load(scalerImgLoadedHandler(data)); | |
| 882 $img.attr('src', scalerUrl); | |
| 608 | 883 }; |
| 615 | 884 |
| 610 | 885 // creates HTML structure for buttons in elem |
| 697 | 886 var createButtons = function (data, buttonSetIdx) { |
| 647 | 887 var $elem = data.$elem; |
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888 var settings = data.settings; |
| 665 | 889 var mode = settings.interactionMode; |
|
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890 var buttonSettings = settings.buttonSettings[mode]; |
| 682 | 891 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
| 690 | 892 if (buttonGroup == null) { |
| 893 // no buttons here | |
| 894 return; | |
| 895 } | |
| 896 var $buttonsDiv = $('<div class="buttons"/>'); | |
| 682 | 897 var buttonNames = buttonSettings[buttonGroup]; |
| 898 for (var i = 0; i < buttonNames.length; i++) { | |
| 899 var buttonName = buttonNames[i]; | |
| 900 var buttonConfig = settings.buttons[buttonName]; | |
| 665 | 901 // construct the button html |
| 902 var $button = $('<div class="button"></div>'); | |
| 903 var $a = $('<a/>'); | |
| 904 var $img = $('<img class="button"/>'); | |
| 905 $buttonsDiv.append($button); | |
| 906 $button.append($a); | |
| 907 $a.append($img); | |
| 908 // add attributes and bindings | |
| 909 $button.attr('title', buttonConfig.tooltip); | |
| 682 | 910 $button.addClass('button-' + buttonName); |
| 665 | 911 // create handler for the buttons |
| 912 $a.bind('click.digilib', (function () { | |
| 913 // we create a new closure to capture the value of action | |
| 914 var action = buttonConfig.onclick; | |
| 915 if ($.isArray(action)) { | |
| 916 // the handler function calls digilib with action and parameters | |
| 917 return function (evt) { | |
| 918 console.debug('click action=', action, ' evt=', evt); | |
| 919 $elem.digilib.apply($elem, action); | |
| 920 return false; | |
| 921 }; | |
| 922 } else { | |
| 923 // the handler function calls digilib with action | |
| 924 return function (evt) { | |
| 925 console.debug('click action=', action, ' evt=', evt); | |
| 926 $elem.digilib(action); | |
| 927 return false; | |
| 928 }; | |
| 929 } | |
| 930 })()); | |
| 931 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
| 690 | 932 } |
| 662 | 933 // make buttons div scroll if too large for window |
| 934 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 935 $buttonsDiv.css('position', 'absolute'); | |
| 936 } | |
| 697 | 937 // buttons hidden at first |
| 938 $buttonsDiv.hide(); | |
| 939 $elem.append($buttonsDiv); | |
| 682 | 940 if (data.$buttonSets == null) { |
| 697 | 941 // first button set |
| 682 | 942 data.$buttonSets = [$buttonsDiv]; |
| 943 } else { | |
| 690 | 944 $elem.append($buttonsDiv); |
| 682 | 945 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
| 946 } | |
| 612 | 947 return $buttonsDiv; |
| 610 | 948 }; |
| 615 | 949 |
| 950 // creates HTML structure for the bird's eye view in elem | |
| 638 | 951 var setupBirdDiv = function (data) { |
| 647 | 952 var $elem = data.$elem; |
| 615 | 953 // the bird's eye div |
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954 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 615 | 955 // the detail indicator frame |
| 726 | 956 var $birdZoom = $('<div class="birdzoom" style="display:none; background-color:transparent;"/>'); |
| 615 | 957 // the small image |
| 958 var $birdImg = $('<img class="birdimg"/>'); | |
| 723 | 959 data.$birdDiv = $birdDiv; |
| 960 data.$birdZoom = $birdZoom; | |
| 961 data.$birdImg = $birdImg; | |
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962 $elem.append($birdDiv); |
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963 $birdDiv.append($birdZoom); |
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964 $birdDiv.append($birdImg); |
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965 $birdZoom.css(data.settings.birdIndicatorStyle); |
| 723 | 966 var birdUrl = getBirdImgUrl(data); |
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967 $birdImg.load(birdImgLoadedHandler(data)); |
| 723 | 968 $birdImg.attr('src', birdUrl); |
| 969 }; | |
| 970 | |
| 971 // update bird's eye view | |
| 972 var updateBirdDiv = function (data) { | |
| 973 if (!data.settings.isBirdDivVisible) return; | |
| 974 var $birdImg = data.$birdImg; | |
| 975 var oldsrc = $birdImg.attr('src'); | |
| 976 var newsrc = getBirdImgUrl(data); | |
| 977 if (oldsrc !== newsrc) { | |
| 978 $birdImg.attr('src', newsrc); | |
| 979 // onload handler re-renders | |
| 980 } else { | |
| 981 // re-render | |
| 982 renderBirdArea(data); | |
| 730 | 983 // enable click and drag |
|
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984 setupBirdDrag(data); |
| 723 | 985 } |
|
719
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986 }; |
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987 |
| 625 | 988 // creates HTML structure for the about view in elem |
|
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989 var setupAboutDiv = function (data) { |
| 647 | 990 var $elem = data.$elem; |
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991 var settings = data.settings; |
| 625 | 992 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 616 | 993 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 994 var $link = $('<a/>'); | |
| 995 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 996 var $content = $('<p/>'); | |
| 997 $elem.append($aboutDiv); | |
| 998 $aboutDiv.append($header); | |
| 999 $aboutDiv.append($link); | |
| 1000 $aboutDiv.append($content); | |
| 1001 $link.append($logo); | |
| 1002 $logo.attr('src', settings.logoUrl); | |
| 635 | 1003 $link.attr('href', settings.homeUrl); |
| 616 | 1004 $content.text('Version: ' + settings.version); |
| 635 | 1005 // click hides |
| 649 | 1006 $aboutDiv.bind('click.digilib', function () { |
| 646 | 1007 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 649 | 1008 return false; |
| 710 | 1009 }); |
| 635 | 1010 data.$aboutDiv = $aboutDiv; |
| 634 | 1011 }; |
| 1012 | |
| 635 | 1013 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 1014 var showDiv = function (isVisible, $div, show) { | |
| 645 | 1015 if (show == null) { |
| 635 | 1016 // toggle visibility |
| 1017 isVisible = !isVisible; | |
| 1018 } else { | |
| 1019 // set visibility | |
| 1020 isVisible = show; | |
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1021 } |
| 635 | 1022 if (isVisible) { |
| 1023 $div.fadeIn(); | |
| 1024 } else { | |
| 1025 $div.fadeOut(); | |
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1026 } |
| 635 | 1027 return isVisible; |
| 634 | 1028 }; |
| 616 | 1029 |
| 697 | 1030 // display more (or less) button sets |
| 1031 var showButtons = function (data, more, setIdx, animated) { | |
| 711 | 1032 var atime = animated ? 'fast': 0; |
| 697 | 1033 if (more) { |
| 1034 // add set | |
| 1035 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 1036 var $set; | |
| 1037 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
| 1038 // set exists | |
| 1039 $set = data.$buttonSets[setIdx]; | |
| 1040 } else { | |
| 1041 $set = createButtons(data, setIdx); | |
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1042 } |
| 697 | 1043 if ($set == null) return false; |
| 1044 var btnWidth = $set.width(); | |
| 1045 // move remaining sets left and show new set | |
| 711 | 1046 if ($otherSets.length > 0) { |
| 1047 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
| 1048 function () {$set.show();}); | |
| 697 | 1049 } else { |
| 1050 $set.show(); | |
| 711 | 1051 } |
| 697 | 1052 } else { |
| 1053 // remove set | |
| 1054 var $set = data.$buttonSets[setIdx]; | |
| 1055 if ($set == null) return false; | |
| 1056 var btnWidth = $set.width(); | |
| 1057 // hide last set | |
| 1058 $set.hide(); | |
| 1059 // take remaining sets and move right | |
| 1060 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 711 | 1061 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
| 1062 } | |
| 697 | 1063 return true; |
| 1064 }; | |
| 1065 | |
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1066 // create Transform from area and $img |
| 675 | 1067 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
|
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1068 var picrect = geom.rectangle($img); |
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1069 var trafo = geom.transform(); |
| 675 | 1070 // move zoom area offset to center |
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1071 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 675 | 1072 // scale zoom area size to [1,1] |
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1073 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 675 | 1074 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 1075 if (rot || hmir || vmir) { | |
| 1076 // move [0.5,0.5] to center | |
| 1077 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 1078 if (hmir) { | |
| 1079 // mirror about center | |
| 1080 trafo.concat(trafo.getMirror('y')); | |
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1081 } |
| 675 | 1082 if (vmir) { |
| 1083 // mirror about center | |
| 1084 trafo.concat(trafo.getMirror('x')); | |
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1085 } |
| 675 | 1086 if (rot) { |
| 1087 // rotate around center | |
| 1088 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
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1089 } |
| 675 | 1090 // move back |
| 1091 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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1092 } |
|
664
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1093 // scale to screen position and size |
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1094 trafo.concat(trafo.getScale(picrect)); |
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1095 trafo.concat(trafo.getTranslation(picrect)); |
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1096 return trafo; |
| 655 | 1097 }; |
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1098 |
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1099 // returns function for load event of scaler img |
| 636 | 1100 var scalerImgLoadedHandler = function (data) { |
| 633 | 1101 return function () { |
| 723 | 1102 var $img = $(this); |
| 738 | 1103 var $scaler = data.$scaler; |
| 627 | 1104 // create Transform from current area and picsize |
| 675 | 1105 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
| 1106 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
| 686 | 1107 console.debug("imgTrafo=", data.imgTrafo); |
| 733 | 1108 // adjust scaler div size |
| 738 | 1109 var imgRect = geom.rectangle($img); |
| 733 | 1110 console.debug("imgrect=", imgRect); |
| 738 | 1111 imgRect.adjustDiv($scaler); |
| 715 | 1112 // show image in case it was hidden (for example in zoomDrag) |
| 733 | 1113 $img.css('visibility', 'visible'); |
| 741 | 1114 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
| 627 | 1115 // display marks |
| 633 | 1116 renderMarks(data); |
|
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1117 // enable drag-to-scroll |
|
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1118 setupZoomDrag(data); |
|
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1119 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation |
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1120 }; |
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1121 }; |
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1122 |
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1123 // returns function for load event of bird's eye view img |
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1124 var birdImgLoadedHandler = function (data) { |
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1125 return function () { |
| 723 | 1126 var $img = $(this); |
|
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1127 console.debug("birdimg loaded! this=", this, " data=", data); |
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1128 // create Transform from current area and picsize |
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1129 data.birdTrafo = getImgTrafo($img, FULL_AREA); |
| 668 | 1130 // display red indicator around zoomarea |
| 723 | 1131 renderBirdArea(data); |
| 1132 // enable click and drag | |
|
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1133 setupBirdDrag(data); |
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1134 }; |
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1135 }; |
| 633 | 1136 |
| 1137 // place marks on the image | |
| 1138 var renderMarks = function (data) { | |
| 647 | 1139 var $elem = data.$elem; |
| 643 | 1140 var marks = data.marks; |
|
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1141 // clear marks |
|
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1142 $elem.find('div.mark').remove(); |
| 633 | 1143 for (var i = 0; i < marks.length; i++) { |
| 1144 var mark = marks[i]; | |
| 643 | 1145 if (data.zoomArea.containsPosition(mark)) { |
| 633 | 1146 var mpos = data.imgTrafo.transform(mark); |
|
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1147 console.debug("renderMarks: mpos=",mpos); |
| 633 | 1148 // create mark |
| 1149 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 1150 var $mark = $(html); | |
| 1151 $elem.append($mark); | |
|
742
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1152 mpos.adjustDiv($mark); |
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1153 } |
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1154 } |
| 633 | 1155 }; |
| 655 | 1156 |
|
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|
1157 // show zoom area indicator on bird's eye view |
| 723 | 1158 var renderBirdArea = function (data) { |
|
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1159 var $birdZoom = data.$birdZoom; |
| 659 | 1160 var zoomArea = data.zoomArea; |
| 723 | 1161 var normalSize = isFullArea(zoomArea); |
| 1162 if (normalSize) { | |
| 1163 $birdZoom.hide(); | |
| 1164 return; | |
| 1165 } else { | |
| 1166 $birdZoom.show(); | |
| 1167 } | |
| 730 | 1168 // position may have changed |
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1169 data.birdTrafo = getImgTrafo(data.$birdImg, FULL_AREA); |
| 738 | 1170 var zoomRect = data.birdTrafo.transform(zoomArea); |
| 741 | 1171 // acount for border width |
| 1172 zoomRect.addPosition({x : -2, y : -2}); | |
|
670
11d96bc0ac09
birdview: nice animation for embedded mode, none for fullscreen
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669
diff
changeset
|
1173 if (data.settings.interactionMode === 'fullscreen') { |
|
11d96bc0ac09
birdview: nice animation for embedded mode, none for fullscreen
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diff
changeset
|
1174 // no animation for fullscreen |
| 738 | 1175 zoomRect.adjustDiv($birdZoom); |
| 723 | 1176 } else { |
| 1177 // nice animation for embedded mode :-) | |
| 741 | 1178 // correct offsetParent because animate doesn't use offset |
| 726 | 1179 var ppos = $birdZoom.offsetParent().offset(); |
| 738 | 1180 var dest = { |
| 1181 left : (zoomRect.x - ppos.left) + 'px', | |
| 1182 top : (zoomRect.y - ppos.top) + 'px', | |
| 1183 width : zoomRect.width, | |
| 1184 height : zoomRect.height}; | |
| 1185 $birdZoom.animate(dest); | |
| 723 | 1186 } |
|
664
d5a5ee4cbf04
work on getting transformation to work with rotation (currently still doesn't)
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663
diff
changeset
|
1187 }; |
| 659 | 1188 |
| 647 | 1189 // zooms by the given factor |
| 643 | 1190 var zoomBy = function(data, factor) { |
| 1191 var area = data.zoomArea; | |
| 1192 var newarea = area.copy(); | |
| 1193 // scale | |
| 1194 newarea.width /= factor; | |
| 1195 newarea.height /= factor; | |
| 1196 // and recenter | |
| 1197 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 1198 newarea.y -= 0.5 * (newarea.height - area.height); | |
|
735
790a7673bef0
improved some embedded buttons; fixed reset function
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733
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changeset
|
1199 newarea = FULL_AREA.fit(newarea); |
| 643 | 1200 data.zoomArea = newarea; |
|
644
ee8ccd84c5f8
reload doesn't take list of changed parameters any more
robcast
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changeset
|
1201 redisplay(data); |
| 643 | 1202 }; |
| 1203 | |
| 647 | 1204 // add a mark where clicked |
| 1205 var setMark = function (data) { | |
| 649 | 1206 var $scaler = data.$scaler; |
|
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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741
diff
changeset
|
1207 // unbind other handler |
|
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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741
diff
changeset
|
1208 $scaler.unbind(".dlZoomDrag"); |
| 647 | 1209 // start event capturing |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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diff
changeset
|
1210 $scaler.one('mousedown.dlSetMark', function (evt) { |
| 647 | 1211 // event handler adding a new mark |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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741
diff
changeset
|
1212 console.log("setmark at=", evt); |
|
672
7f7536a5b6d9
image transform works now under rotation!!! (at least for multiples of 90deg)
robcast
parents:
671
diff
changeset
|
1213 var mpos = geom.position(evt); |
| 647 | 1214 var pos = data.imgTrafo.invtransform(mpos); |
| 1215 data.marks.push(pos); | |
| 1216 redisplay(data); | |
|
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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diff
changeset
|
1217 return false; |
| 647 | 1218 }); |
| 1219 }; | |
| 668 | 1220 |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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changeset
|
1221 // zoom to the area around two clicked points |
| 654 | 1222 var zoomArea = function(data) { |
| 1223 $elem = data.$elem; | |
| 1224 $scaler = data.$scaler; | |
| 1225 var pt1, pt2; | |
| 1226 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 1227 $elem.append($zoomDiv); | |
| 668 | 1228 $zoomDiv.css(data.settings.zoomrectStyle); |
| 654 | 1229 var picRect = geom.rectangle($scaler); |
| 1230 // FIX ME: is there a way to query the border width from CSS info? | |
| 1231 // rect.x -= 2; // account for overlay borders | |
| 1232 // rect.y -= 2; | |
| 1233 | |
| 1234 var zoomStart = function (evt) { | |
| 1235 pt1 = geom.position(evt); | |
| 1236 // setup and show zoom div | |
| 738 | 1237 pt1.adjustDiv($zoomDiv); |
| 668 | 1238 $zoomDiv.width(0).height(0); |
| 654 | 1239 $zoomDiv.show(); |
| 1240 // register events | |
| 738 | 1241 $elem.bind("mousemove.dlZoomArea", zoomMove); |
| 1242 $elem.bind("mouseup.dlZoomArea", zoomEnd); | |
| 654 | 1243 return false; |
| 1244 }; | |
| 668 | 1245 |
| 741 | 1246 // mouse move handler |
| 1247 var zoomMove = function (evt) { | |
| 1248 pt2 = geom.position(evt); | |
| 1249 var rect = geom.rectangle(pt1, pt2); | |
| 1250 rect.clipTo(picRect); | |
| 1251 // update zoom div | |
| 1252 rect.adjustDiv($zoomDiv); | |
| 1253 return false; | |
| 1254 }; | |
|
745
ad483c008159
move birdview zoom indicator along with zoom drag
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diff
changeset
|
1255 |
| 654 | 1256 // mouseup handler: end moving |
| 1257 var zoomEnd = function (evt) { | |
| 1258 pt2 = geom.position(evt); | |
| 1259 // assume a click and continue if the area is too small | |
| 1260 var clickRect = geom.rectangle(pt1, pt2); | |
| 710 | 1261 if (clickRect.getArea() <= 5) return false; |
| 654 | 1262 // hide zoom div |
| 1263 $zoomDiv.remove(); | |
| 1264 // unregister events | |
| 738 | 1265 $elem.unbind("mousemove.dlZoomArea", zoomMove); |
| 1266 $elem.unbind("mouseup.dlZoomArea", zoomEnd); | |
| 654 | 1267 // clip and transform |
| 1268 clickRect.clipTo(picRect); | |
| 1269 var area = data.imgTrafo.invtransform(clickRect); | |
| 1270 data.zoomArea = area; | |
| 1271 // zoomed is always fit | |
| 1272 data.settings.ws = 1; | |
| 738 | 1273 delete data.dlOpts.fitwidth; |
| 1274 delete data.dlOpts.fitheight; | |
| 654 | 1275 redisplay(data); |
| 1276 return false; | |
| 1277 }; | |
| 668 | 1278 |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
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741
diff
changeset
|
1279 // clear old handler (also ZoomDrag) |
| 738 | 1280 $scaler.unbind('.dlZoomArea'); |
|
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
741
diff
changeset
|
1281 $scaler.unbind(".dlZoomDrag"); |
| 738 | 1282 $elem.unbind('.dlZoomArea'); |
| 654 | 1283 // bind start zoom handler |
| 738 | 1284 $scaler.one('mousedown.dlZoomArea', zoomStart); |
| 654 | 1285 }; |
| 647 | 1286 |
| 723 | 1287 // bird's eye view zoom area click and drag handler |
|
732
55f2dd197ca9
really renamed birdMoveArea, really merged fix for no zoom area.
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diff
changeset
|
1288 var setupBirdDrag = function(data) { |
|
678
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|
1289 var $birdImg = data.$birdImg; |
|
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|
1290 var $birdZoom = data.$birdZoom; |
| 730 | 1291 var $document = $(document); |
|
751
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
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changeset
|
1292 var $scaler = data.$scaler; |
|
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
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|
1293 var startPos, newRect, birdImgRect, birdZoomRect, fullRect, scalerPos; |
|
678
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|
1294 |
| 741 | 1295 // mousedown handler: start dragging bird zoom to a new position |
| 1296 var birdZoomStartDrag = function(evt) { | |
| 1297 startPos = geom.position(evt); | |
| 1298 // position may have changed | |
| 1299 data.birdTrafo = getImgTrafo($birdImg, FULL_AREA); | |
| 1300 birdImgRect = geom.rectangle($birdImg); | |
| 1301 birdZoomRect = geom.rectangle($birdZoom); | |
|
751
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diff
changeset
|
1302 scalerPos = geom.position($scaler); |
| 741 | 1303 newRect = null; |
|
746
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|
1304 fullRect = setZoomBG(data); // setup zoom background image |
| 741 | 1305 $document.bind("mousemove.dlBirdMove", birdZoomMove); |
| 1306 $document.bind("mouseup.dlBirdMove", birdZoomEndDrag); | |
| 1307 return false; | |
| 1308 }; | |
| 1309 | |
| 733 | 1310 // mousemove handler: drag |
|
678
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first step at dragging birdview zoom indicator around
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changeset
|
1311 var birdZoomMove = function(evt) { |
|
d50d24b7fd95
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|
1312 var pos = geom.position(evt); |
| 730 | 1313 var delta = startPos.delta(pos); |
|
678
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diff
changeset
|
1314 // move birdZoom div, keeping size |
| 730 | 1315 newRect = birdZoomRect.copy(); |
| 733 | 1316 newRect.addPosition(delta); |
|
678
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changeset
|
1317 newRect.stayInside(birdImgRect); |
|
746
2e9a48dc7a0c
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diff
changeset
|
1318 // reflect birdview zoom position in scaler image |
|
2e9a48dc7a0c
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diff
changeset
|
1319 var area = data.birdTrafo.invtransform(newRect); |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1320 var imgArea = data.imgTrafo.transform(area); |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1321 var offset = imgArea.getPosition().neg(); |
|
751
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
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748
diff
changeset
|
1322 offset.add(scalerPos); |
|
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
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diff
changeset
|
1323 console.log('offset', offset); |
|
746
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1324 if (fullRect) { |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
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|
1325 var bgPos = fullRect.getPosition().add(offset); |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1326 } else { |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1327 var bgPos = offset; |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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parents:
745
diff
changeset
|
1328 } |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1329 // move the background image to the new position |
|
2e9a48dc7a0c
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745
diff
changeset
|
1330 data.$scaler.css({ |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1331 'background-position' : bgPos.x + "px " + bgPos.y + "px" |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1332 }); |
|
751
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
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748
diff
changeset
|
1333 // acount for border width |
|
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
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parents:
748
diff
changeset
|
1334 newRect.addPosition({x : -2, y : -2}); |
|
00b7857f07f5
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
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748
diff
changeset
|
1335 newRect.adjustDiv($birdZoom); |
|
678
d50d24b7fd95
first step at dragging birdview zoom indicator around
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diff
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|
1336 return false; |
|
d50d24b7fd95
first step at dragging birdview zoom indicator around
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diff
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|
1337 }; |
|
d50d24b7fd95
first step at dragging birdview zoom indicator around
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diff
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|
1338 |
| 733 | 1339 // mouseup handler: reload page |
|
678
d50d24b7fd95
first step at dragging birdview zoom indicator around
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677
diff
changeset
|
1340 var birdZoomEndDrag = function(evt) { |
|
d50d24b7fd95
first step at dragging birdview zoom indicator around
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parents:
677
diff
changeset
|
1341 var settings = data.settings; |
| 730 | 1342 $document.unbind("mousemove.dlBirdMove", birdZoomMove); |
| 1343 $document.unbind("mouseup.dlBirdMove", birdZoomEndDrag); | |
| 1344 if (newRect == null) { | |
| 1345 // no movement happened - set center to click position | |
|
678
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first step at dragging birdview zoom indicator around
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677
diff
changeset
|
1346 startPos = birdZoomRect.getCenter(); |
| 730 | 1347 birdZoomMove(evt); |
|
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
robcast
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diff
changeset
|
1348 } |
|
747
fd4842f0afc7
smoother birdZoom indicator movement; fixed bug in jQuery.offset()
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parents:
746
diff
changeset
|
1349 // ugly, but needed to prevent double border width compensation |
|
fd4842f0afc7
smoother birdZoom indicator movement; fixed bug in jQuery.offset()
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diff
changeset
|
1350 newRect.addPosition({x : +2, y : +2}); |
| 730 | 1351 var newArea = data.birdTrafo.invtransform(newRect); |
| 1352 data.zoomArea = newArea; | |
|
678
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diff
changeset
|
1353 redisplay(data); |
|
d50d24b7fd95
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|
1354 return false; |
|
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|
1355 }; |
|
d50d24b7fd95
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|
1356 |
| 730 | 1357 // clear old handler |
| 1358 $document.unbind(".dlBirdMove"); | |
| 1359 $birdImg.unbind(".dlBirdMove"); | |
| 1360 $birdZoom.unbind(".dlBirdMove"); | |
|
732
55f2dd197ca9
really renamed birdMoveArea, really merged fix for no zoom area.
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731
diff
changeset
|
1361 if (! isFullArea(data.zoomArea)) { |
|
55f2dd197ca9
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
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731
diff
changeset
|
1362 // set new handler |
|
55f2dd197ca9
really renamed birdMoveArea, really merged fix for no zoom area.
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731
diff
changeset
|
1363 $birdImg.bind("mousedown.dlBirdMove", birdZoomStartDrag); |
|
55f2dd197ca9
really renamed birdMoveArea, really merged fix for no zoom area.
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731
diff
changeset
|
1364 $birdZoom.bind("mousedown.dlBirdMove", birdZoomStartDrag); |
|
55f2dd197ca9
really renamed birdMoveArea, really merged fix for no zoom area.
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changeset
|
1365 } |
|
678
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|
1366 }; |
|
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|
1367 |
|
746
2e9a48dc7a0c
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changeset
|
1368 // move bird zoom indicator to reflect zoomed detail area |
|
745
ad483c008159
move birdview zoom indicator along with zoom drag
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diff
changeset
|
1369 var setBirdZoom = function(data, rect) { |
|
ad483c008159
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744
diff
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|
1370 var part = data.imgTrafo.invtransform(rect); |
|
747
fd4842f0afc7
smoother birdZoom indicator movement; fixed bug in jQuery.offset()
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746
diff
changeset
|
1371 // area = FULL_AREA.fit(part); // no, we want to see where we transcend the borders |
|
745
ad483c008159
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diff
changeset
|
1372 birdTrafo = getImgTrafo(data.$birdImg, FULL_AREA); |
|
ad483c008159
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diff
changeset
|
1373 var birdRect = birdTrafo.transform(part); |
|
ad483c008159
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|
1374 // acount for border width |
|
ad483c008159
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diff
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|
1375 birdRect.addPosition({x : -2, y : -2}); |
|
ad483c008159
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changeset
|
1376 birdRect.adjustDiv(data.$birdZoom); |
|
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|
1377 }; |
|
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|
1378 |
|
746
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changeset
|
1379 // set zoom background |
|
2e9a48dc7a0c
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|
1380 var setZoomBG = function(data) { |
|
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changeset
|
1381 var $scaler = data.$scaler; |
|
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|
1382 var $img = data.$img; |
|
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|
1383 var fullRect = null; |
|
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|
1384 // hide the scaler img, show background of div instead |
|
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1385 $img.css('visibility', 'hidden'); |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1386 var scalerCss = { |
|
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|
1387 'background-image' : 'url(' + $img.attr('src') + ')', |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1388 'background-repeat' : 'no-repeat', |
|
2e9a48dc7a0c
move zoom-drag background along with birdview indicator
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diff
changeset
|
1389 'background-position' : 'left top', |
|
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1390 'opacity' : '0.5', |
|
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move zoom-drag background along with birdview indicator
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changeset
|
1391 'cursor' : 'move' |
|
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changeset
|
1392 }; |
|
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1393 if (data.hasBgSize) { |
|
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move zoom-drag background along with birdview indicator
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diff
changeset
|
1394 // full-size background using CSS3-background-size |
|
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1395 fullRect = data.imgTrafo.transform(FULL_AREA); |
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1396 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) { |
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1397 // correct offset because background is relative |
|
751
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1398 var scalerPos = geom.position($scaler); |
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1399 fullRect.addPosition(scalerPos.neg()); |
|
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1400 var url = getBirdImgUrl(data, ['rot', 'mo']); |
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1401 scalerCss['background-image'] = 'url(' + url + ')'; |
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1402 scalerCss[data.bgSizeName] = fullRect.width + 'px ' + fullRect.height + 'px'; |
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1403 scalerCss['background-position'] = fullRect.x + 'px '+ fullRect.y + 'px'; |
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1404 } else { |
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1405 // too big |
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1406 fullRect = null; |
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1407 } |
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1408 } |
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1409 $scaler.css(scalerCss); |
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1410 // isBgReady = true; |
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1411 return fullRect; |
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1412 }; |
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1413 |
| 738 | 1414 // setup handlers for dragging the zoomed image |
| 705 | 1415 var setupZoomDrag = function(data) { |
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1416 var startPos, delta, fullRect; |
| 733 | 1417 var $document = $(document); |
| 705 | 1418 var $elem = data.$elem; |
| 1419 var $scaler = data.$scaler; | |
| 1420 var $img = data.$img; | |
| 710 | 1421 |
| 733 | 1422 // drag the image and load a new detail on mouse up |
| 705 | 1423 var dragStart = function (evt) { |
|
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1424 console.debug("dragstart at=",evt); |
|
737
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1425 // don't start dragging if not zoomed |
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1426 if (isFullArea(data.zoomArea)) return false; |
| 733 | 1427 startPos = geom.position(evt); |
| 741 | 1428 delta = null; |
|
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1429 // set low res background immediately on mousedown |
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1430 fullRect = setZoomBG(data); |
| 733 | 1431 $document.bind("mousemove.dlZoomDrag", dragMove); |
| 1432 $document.bind("mouseup.dlZoomDrag", dragEnd); | |
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1433 return false; |
| 705 | 1434 }; |
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1435 |
| 733 | 1436 // mousemove handler: drag zoomed image |
| 705 | 1437 var dragMove = function (evt) { |
| 1438 var pos = geom.position(evt); | |
| 741 | 1439 delta = startPos.delta(pos); |
| 1440 if (fullRect) { | |
| 1441 var bgPos = fullRect.getPosition().add(delta); | |
| 1442 } else { | |
| 1443 var bgPos = delta; | |
| 1444 } | |
| 705 | 1445 // move the background image to the new position |
| 715 | 1446 $scaler.css({ |
| 741 | 1447 'background-position' : bgPos.x + "px " + bgPos.y + "px" |
| 705 | 1448 }); |
|
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1449 // set birdview indicator to reflect new zoom position |
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1450 var za = geom.rectangle($img); |
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1451 za.addPosition(delta.neg()); |
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1452 setBirdZoom(data, za); |
| 705 | 1453 return false; |
| 1454 }; | |
| 710 | 1455 |
| 733 | 1456 // mouseup handler: reload zoomed image in new position |
| 705 | 1457 var dragEnd = function (evt) { |
| 739 | 1458 $scaler.css('cursor', 'auto'); |
| 733 | 1459 $document.unbind("mousemove.dlZoomDrag", dragMove); |
| 1460 $document.unbind("mouseup.dlZoomDrag", dragEnd); | |
| 1461 if (delta == null || delta.distance() < 2) { | |
| 1462 // no movement | |
| 1463 $img.css('visibility', 'visible'); | |
| 741 | 1464 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
| 733 | 1465 return false; |
| 1466 } | |
| 1467 // get old zoom area (screen coordinates) | |
| 741 | 1468 var za = geom.rectangle($img); |
| 733 | 1469 // move |
| 741 | 1470 za.addPosition(delta.neg()); |
| 733 | 1471 // transform back |
| 1472 var newArea = data.imgTrafo.invtransform(za); | |
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1473 data.zoomArea = FULL_AREA.fit(newArea); |
|
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|
1474 redisplay(data); |
| 705 | 1475 return false; |
| 1476 }; | |
|
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1477 |
| 733 | 1478 // clear old handler |
| 1479 $document.unbind(".dlZoomDrag"); | |
| 741 | 1480 $scaler.unbind(".dlZoomDrag"); |
|
742
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|
1481 if (! isFullArea(data.zoomArea)) { |
|
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|
1482 // set handler |
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|
1483 $scaler.bind("mousedown.dlZoomDrag", dragStart); |
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|
1484 } |
| 705 | 1485 }; |
| 1486 | |
| 703 | 1487 // get image quality as a number (0..2) |
| 1488 var getQuality = function (data) { | |
| 1489 var flags = data.scalerFlags; | |
| 1490 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
| 1491 return parseInt(q[1], 10); | |
| 706 | 1492 }; |
| 703 | 1493 |
| 1494 // set image quality as a number (0..2) | |
| 1495 var setQuality = function (data, qual) { | |
| 1496 var flags = data.scalerFlags; | |
| 1497 // clear flags | |
| 1498 for (var i = 0; i < 3; ++i) { | |
| 1499 delete flags['q'+i]; | |
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1500 } |
| 703 | 1501 flags['q'+qual] = 'q'+qual; |
| 706 | 1502 }; |
| 710 | 1503 |
| 650 | 1504 // sets a key to a value (relative values with +/- if relative=true) |
| 1505 var setNumValue = function(settings, key, value) { | |
| 716 | 1506 if (value == null) return null; |
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1507 if (isNumber(value)) { |
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1508 settings[key] = value; |
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1509 return value; |
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1510 } |
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1511 var sign = value[0]; |
| 650 | 1512 if (sign === '+' || sign === '-') { |
| 1513 if (settings[key] == null) { | |
|
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1514 // this isn't perfect but still... |
| 650 | 1515 settings[key] = 0; |
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1516 } |
| 650 | 1517 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
| 1518 } else { | |
| 1519 settings[key] = value; | |
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1520 } |
| 650 | 1521 return settings[key]; |
| 1522 }; | |
| 655 | 1523 |
| 1524 // auxiliary function (from old dllib.js) | |
|
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1525 var isFullArea = function(area) { |
| 659 | 1526 return (area.width === 1.0) && (area.height === 1.0); |
| 655 | 1527 }; |
| 1528 | |
| 641 | 1529 // auxiliary function (from Douglas Crockford, A.10) |
| 1530 var isNumber = function isNumber(value) { | |
| 710 | 1531 return typeof value === 'number' && isFinite(value); |
| 641 | 1532 }; |
| 655 | 1533 |
| 631 | 1534 // auxiliary function to crop senseless precision |
| 1535 var cropFloat = function (x) { | |
| 637 | 1536 return parseInt(10000 * x, 10) / 10000; |
| 631 | 1537 }; |
| 655 | 1538 |
| 692 | 1539 // fallback for console.log calls |
| 1540 if (customConsole) { | |
| 1541 var logFunction = function(type) { | |
| 1542 return function(){ | |
| 1543 var $debug = $('#debug'); // debug div | |
| 1544 if (!$debug) return; | |
| 1545 var args = Array.prototype.slice.call(arguments); | |
| 1546 var argtext = args.join(' '); | |
| 1547 var $logDiv = $('<div/>'); | |
| 1548 $logDiv.addClass(type); | |
| 1549 $logDiv.text(argtext); | |
| 1550 $debug.append($logDiv); | |
| 1551 }; | |
| 1552 }; | |
| 1553 console.log = logFunction('_log'); | |
| 1554 console.debug = logFunction('_debug'); | |
| 1555 console.error = logFunction('_error'); | |
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1556 } |
| 692 | 1557 |
| 605 | 1558 // hook plugin into jquery |
|
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|
1559 $.fn.digilib = function(action) { |
|
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|
1560 if (actions[action]) { |
|
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|
1561 // call action on this with the remaining arguments (inserting data as first argument) |
|
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|
1562 var $elem = $(this); |
|
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|
1563 var data = $elem.data('digilib'); |
|
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|
1564 var args = Array.prototype.slice.call(arguments, 1); |
|
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|
1565 args.unshift(data); |
|
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|
1566 return actions[action].apply(this, args); |
|
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|
1567 } else if (typeof(action) === 'object' || !action) { |
| 634 | 1568 // call init on this |
|
651
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|
1569 return actions.init.apply(this, arguments); |
| 605 | 1570 } else { |
|
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|
1571 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
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|
1572 } |
| 605 | 1573 }; |
| 692 | 1574 |
| 604 | 1575 })(jQuery); |