Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 737:f527959baa3e jquery
get reference works now in embedded.
url configurable or taken from scaler url.
| author | robcast |
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| date | Thu, 03 Feb 2011 10:30:15 +0100 |
| parents | a3381aff9f12 |
| children | bd283b2cdbbc |
| 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', | |
| 737 | 186 // base URL to digilib viewer (for reference URLs) |
| 187 'digilibBaseUrl' : null, | |
| 603 | 188 // base URL to Scaler servlet |
| 645 | 189 'scalerBaseUrl' : null, |
| 603 | 190 // list of Scaler parameters |
| 620 | 191 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
| 192 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
| 193 // Scaler parameter defaults | |
| 636 | 194 'pn' : 1, |
| 620 | 195 'ww' : 1.0, |
| 196 'wh' : 1.0, | |
| 197 'wx' : 0.0, | |
| 198 'wy' : 0.0, | |
| 199 'ws' : 1.0, | |
| 636 | 200 'mo' : '', |
| 201 'rot' : 0, | |
| 202 'cont' : 0, | |
| 203 'brgt' : 0, | |
| 204 'rgbm' : '0/0/0', | |
| 205 'rgba' : '0/0/0', | |
| 206 'ddpi' : null, | |
| 207 'ddpix' : null, | |
| 208 'ddpiy' : null, | |
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209 // list of digilib parameters |
| 643 | 210 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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211 // digilib parameter defaults |
| 636 | 212 'mk' : '', |
| 643 | 213 'clop' : '', |
| 636 | 214 // mode of operation: |
| 215 // fullscreen = take parameters from page URL, keep state in page URL | |
| 216 // embedded = take parameters from Javascript options, keep state inside object | |
| 603 | 217 'interactionMode' : 'fullscreen', |
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218 // buttons |
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219 'buttons' : buttons, |
| 661 | 220 // defaults for digilib buttons |
| 658 | 221 'buttonSettings' : { |
| 222 'fullscreen' : { | |
| 661 | 223 // path to button images (must end with a slash) |
| 658 | 224 'imagePath' : 'img/fullscreen/', |
| 714 | 225 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","help","reset","toggleoptions"], |
| 226 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","toggleoptions"], | |
| 675 | 227 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 228 }, |
| 229 'embedded' : { | |
| 230 'imagePath' : 'img/embedded/16/', | |
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231 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","bird","help","reset","toggleoptions"], |
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232 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","toggleoptions"], |
| 675 | 233 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 234 } |
| 690 | 235 }, |
| 236 // number of visible button groups | |
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237 'visibleButtonSets' : 1, |
| 609 | 238 // is birdView shown? |
| 239 'isBirdDivVisible' : false, | |
| 661 | 240 // dimensions of bird's eye div |
| 667 | 241 'birdDivWidth' : 200, |
| 242 'birdDivHeight' : 200, | |
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243 // parameters used by bird's eye div |
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244 'birdDivParams' : ['fn','pn','dw','dh'], |
| 661 | 245 // style of the zoom area indicator in the bird's eye div |
| 652 | 246 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
| 661 | 247 // style of zoom area "rubber band" |
| 248 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
| 609 | 249 // is the "about" window shown? |
| 734 | 250 'isAboutDivVisible' : false, |
| 251 // maximum width of background image for drag-scroll | |
| 252 'maxBgSize' : 10000 | |
| 609 | 253 |
| 603 | 254 }; |
| 648 | 255 |
| 601 | 256 // affine geometry classes |
| 257 var geom = dlGeometry(); | |
| 648 | 258 |
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259 var FULL_AREA = geom.rectangle(0, 0, 1, 1); |
| 648 | 260 |
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261 var actions = { |
| 661 | 262 // init: digilib initialization |
| 263 init : function(options) { | |
| 264 // settings for this digilib instance are merged from defaults and options | |
| 265 var settings = $.extend({}, defaults, options); | |
| 266 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
| 267 var queryParams = {}; | |
| 268 if (isFullscreen) { | |
| 269 queryParams = parseQueryParams(); | |
| 270 // check scalerBaseUrl | |
| 271 if (settings.scalerBaseUrl == null) { | |
| 272 // try the host this came from | |
| 273 var h = window.location.host; | |
| 274 if (window.location.host) { | |
| 275 var url = window.location.href; | |
| 276 // assume the page lives in [webapp]/jquery/ | |
| 277 var pos = url.indexOf('jquery/'); | |
| 278 if (pos > 0) { | |
| 279 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
| 645 | 280 } |
| 281 } | |
| 629 | 282 } |
| 661 | 283 } |
| 284 return this.each(function() { | |
| 285 var $elem = $(this); | |
| 286 var data = $elem.data('digilib'); | |
| 681 | 287 var params, elemSettings; |
| 661 | 288 // if the plugin hasn't been initialized yet |
| 289 if (!data) { | |
| 290 // merge query parameters | |
| 291 if (isFullscreen) { | |
| 681 | 292 params = queryParams; |
| 661 | 293 } else { |
| 681 | 294 params = parseImgParams($elem); |
| 720 | 295 if (jQuery.cookie) { |
| 296 // retrieve params from cookie | |
| 297 var ck = "digilib-embed:fn:" + escape(params.fn) + ":pn:" + (params.pn || '1'); | |
| 298 var cs = jQuery.cookie(ck); | |
| 299 console.debug("get cookie=", ck, " value=", cs); | |
| 300 if (cs) { | |
| 301 var cp = parseQueryString(cs); | |
| 721 | 302 // ignore fn and pn from cookie TODO: should we keep pn? |
| 303 delete cp.fn; | |
| 304 delete cp.pn; | |
| 305 jQuery.extend(params, cp); | |
| 720 | 306 } |
| 307 } | |
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308 } |
| 661 | 309 // store $(this) element in the settings |
| 721 | 310 elemSettings = jQuery.extend({}, settings, params); |
| 690 | 311 data = { |
| 661 | 312 $elem : $elem, |
| 313 settings : elemSettings, | |
| 681 | 314 queryParams : params |
| 661 | 315 }; |
| 316 // store in data element | |
| 317 $elem.data('digilib', data); | |
| 318 } | |
| 319 unpackParams(data); | |
| 737 | 320 // check if browser knows *background-size |
| 734 | 321 for (var bs in {'':1, '-moz-':1, '-webkit-':1, '-o-':1}) { |
| 322 if ($elem.css(bs+'background-size')) { | |
| 323 data.hasBgSize = true; | |
| 324 data.bgSizeName = bs+'background-size'; | |
| 325 break; | |
| 326 } | |
| 327 } | |
| 737 | 328 // check digilib base URL |
| 329 if (elemSettings.digilibBaseUrl == null) { | |
| 330 if (isFullscreen) { | |
| 331 // take current host | |
| 332 var url = window.location.toString(); | |
| 333 var pos = url.indexOf('?'); | |
| 334 elemSettings.digilibBaseUrl = url.substring(0, pos); | |
| 335 } else { | |
| 336 var url = elemSettings.scalerBaseUrl; | |
| 337 if (url) { | |
| 338 // build it from scaler URL | |
| 339 var bp = url.indexOf('/servlet/Scaler'); | |
| 340 elemSettings.digilibBaseUrl = url.substring(0, bp) + '/digilib.jsp'; | |
| 341 } | |
| 342 } | |
| 343 } | |
| 675 | 344 // create HTML structure for scaler |
| 661 | 345 setupScalerDiv(data); |
| 690 | 346 // add buttons |
| 347 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { | |
| 348 showButtons(data, true, i); | |
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349 } |
| 661 | 350 // bird's eye view creation |
| 703 | 351 if (elemSettings.isBirdDivVisible) { |
| 631 | 352 setupBirdDiv(data); |
| 716 | 353 data.$birdDiv.show(); |
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354 } |
| 661 | 355 // about window creation - TODO: could be deferred? restrict to only one item? |
| 356 setupAboutDiv(data); | |
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357 // drag zoom area around in scaler div |
| 700 | 358 setupZoomDrag(data); |
| 661 | 359 }); |
| 360 }, | |
| 361 | |
| 362 // destroy: clean up digilib | |
| 363 destroy : function(data) { | |
| 364 return this.each(function(){ | |
| 365 var $elem = $(this); | |
| 366 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
| 367 data.digilib.remove(); | |
| 368 $elem.removeData('digilib'); | |
| 369 }); | |
| 370 }, | |
| 371 | |
| 372 // show or hide the 'about' window | |
| 373 showAboutDiv : function(data, show) { | |
| 374 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
| 375 }, | |
| 648 | 376 |
| 661 | 377 // event handler: toggles the visibility of the bird's eye window |
| 378 showBirdDiv : function (data, show) { | |
| 719 | 379 var settings = data.settings; |
| 661 | 380 if (data.$birdDiv == null) { |
| 381 // no bird div -> create | |
| 382 setupBirdDiv(data); | |
| 383 } | |
| 719 | 384 settings.isBirdDivVisible = showDiv(settings.isBirdDivVisible, data.$birdDiv, show); |
| 385 updateBirdDiv(data); | |
| 716 | 386 storeOptions(data); |
| 387 // data.$birdImg.triggerHandler('load'); // TODO: we shouldn't do that | |
| 661 | 388 }, |
| 389 | |
| 390 // goto given page nr (+/-: relative) | |
| 391 gotoPage : function (data, pageNr) { | |
| 392 var settings = data.settings; | |
| 393 var oldpn = settings.pn; | |
| 709 | 394 if (pageNr == null) { |
| 395 pageNr = window.prompt("Goto page number", oldpn); | |
| 396 } | |
| 661 | 397 var pn = setNumValue(settings, "pn", pageNr); |
| 398 if (pn == null) return false; // nothing happened | |
| 399 if (pn < 1) { | |
| 400 alert("no such page (page number too low)"); | |
| 401 settings.pn = oldpn; | |
| 402 return false; | |
| 403 } | |
| 404 if (settings.pt) { | |
| 405 if (pn > settings.pt) { | |
| 406 alert("no such page (page number too high)"); | |
| 616 | 407 settings.pn = oldpn; |
| 408 return false; | |
| 627 | 409 } |
| 661 | 410 } |
| 411 // reset mk and others(?) | |
| 412 data.marks = []; | |
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413 data.zoomArea = FULL_AREA; |
| 661 | 414 // then reload |
| 415 redisplay(data); | |
| 416 }, | |
| 647 | 417 |
| 661 | 418 // zoom by a given factor |
| 419 zoomBy : function (data, factor) { | |
| 420 zoomBy(data, factor); | |
| 421 }, | |
| 640 | 422 |
| 661 | 423 // zoom interactively |
| 424 zoomArea : function (data) { | |
| 425 zoomArea(data); | |
| 426 }, | |
| 643 | 427 |
| 661 | 428 // zoom out to full page |
| 429 zoomFull : function (data, mode) { | |
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430 data.zoomArea = FULL_AREA; |
| 661 | 431 if (mode === 'width') { |
| 432 data.dlOpts.fitwidth = 1; | |
| 433 delete data.dlOpts.fitheight; | |
| 434 } else if (mode === 'height') { | |
| 435 data.dlOpts.fitheight = 1; | |
| 436 delete data.dlOpts.fitwidth; | |
| 437 } else { | |
| 438 delete data.dlOpts.fitwidth; | |
| 439 delete data.dlOpts.fitheight; | |
| 440 } | |
| 441 redisplay(data); | |
| 442 }, | |
| 443 | |
| 444 // set a mark by clicking (or giving a position) | |
| 445 setMark : function (data, mpos) { | |
| 446 if (mpos == null) { | |
| 447 // interactive | |
| 448 setMark(data); | |
| 449 } else { | |
| 450 // use position | |
| 451 data.marks.push(pos); | |
| 656 | 452 redisplay(data); |
| 597 | 453 } |
| 661 | 454 }, |
| 455 | |
| 456 // remove the last mark | |
| 457 removeMark : function (data) { | |
| 458 data.marks.pop(); | |
| 459 redisplay(data); | |
| 460 }, | |
| 461 | |
| 462 // mirror the image | |
| 463 mirror : function (data, mode) { | |
| 464 var flags = data.scalerFlags; | |
| 465 if (mode === 'h') { | |
| 466 if (flags.hmir) { | |
| 467 delete flags.hmir; | |
| 468 } else { | |
| 469 flags.hmir = 1; | |
| 470 } | |
| 471 } else { | |
| 472 if (flags.vmir) { | |
| 473 delete flags.vmir; | |
| 474 } else { | |
| 475 flags.vmir = 1; | |
| 476 } | |
| 477 } | |
| 478 redisplay(data); | |
| 479 }, | |
| 643 | 480 |
| 661 | 481 // rotate the image |
| 482 rotate : function (data, angle) { | |
| 483 var rot = data.settings.rot; | |
| 484 if (angle == null) { | |
| 485 angle = window.prompt("Rotation angle:", rot); | |
| 486 } | |
| 487 data.settings.rot = angle; | |
| 488 redisplay(data); | |
| 489 }, | |
| 490 | |
| 491 // change brightness | |
| 492 brightness : function (data, factor) { | |
| 493 var brgt = data.settings.brgt; | |
| 494 if (factor == null) { | |
| 495 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 496 } | |
| 497 data.settings.brgt = factor; | |
| 498 redisplay(data); | |
| 499 }, | |
| 500 | |
| 501 // change contrast | |
| 502 contrast : function (data, factor) { | |
| 503 var cont = data.settings.cont; | |
| 504 if (factor == null) { | |
| 505 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 506 } | |
| 507 data.settings.cont = factor; | |
| 508 redisplay(data); | |
| 681 | 509 }, |
| 703 | 510 |
| 683 | 511 // display more (or less) button sets |
| 512 morebuttons : function (data, more) { | |
| 689 | 513 var settings = data.settings; |
| 692 | 514 if (more == null) { |
| 696 | 515 // toggle more or less (only works for 2 sets) |
| 692 | 516 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
| 517 if (settings.visibleButtonSets >= maxbtns) { | |
| 518 more = '-1'; | |
| 519 } else { | |
| 520 more = '+1'; | |
| 521 } | |
| 522 } | |
| 683 | 523 if (more === '-1') { |
| 524 // remove set | |
| 690 | 525 var setIdx = settings.visibleButtonSets - 1; |
| 526 if (showButtons(data, false, setIdx, true)) { | |
| 527 settings.visibleButtonSets--; | |
| 528 } | |
| 683 | 529 } else { |
| 530 // add set | |
| 690 | 531 var setIdx = settings.visibleButtonSets; |
| 532 if (showButtons(data, true, setIdx, true)) { | |
| 533 settings.visibleButtonSets++; | |
| 683 | 534 } |
| 535 } | |
| 716 | 536 // persist setting |
| 537 storeOptions(data); | |
| 684 | 538 }, |
| 681 | 539 |
| 696 | 540 // reset image parameters to defaults |
| 681 | 541 reset : function (data) { |
| 542 var settings = data.settings; | |
| 543 var paramNames = settings.digilibParamNames; | |
| 544 var params = data.queryParams; | |
| 545 // delete all digilib parameters | |
| 546 for (var i = 0; i < paramNames.length; i++) { | |
| 547 var paramName = paramNames[i]; | |
| 548 delete settings[paramName]; | |
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549 } |
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550 settings.fn = params.fn || ''; // no default defined |
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551 settings.pn = params.pn || defaults.pn; |
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552 settings.dw = params.dw; |
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553 settings.dh = params.dh; |
| 702 | 554 settings.isBirdDivVisible = false; |
| 555 settings.visibleButtonSets = 1; | |
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556 // resets zoomArea, marks, scalerflags |
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557 data.zoomArea = FULL_AREA; |
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558 data.marks = []; |
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559 data.scalerFlags = {}; |
| 705 | 560 delete data.dlOpts.fitwidth; |
| 561 delete data.dlOpts.fitheight; | |
| 681 | 562 redisplay(data); |
| 682 | 563 }, |
| 564 | |
| 696 | 565 // presents a reference url (returns value if noprompt) |
| 566 reference : function (data, noprompt) { | |
| 682 | 567 var settings = data.settings; |
| 737 | 568 var url = getDigilibUrl(data); |
| 696 | 569 if (noprompt == null) { |
| 570 window.prompt("URL reference to the current view", url); | |
| 571 } | |
| 572 return url; | |
| 573 }, | |
| 703 | 574 |
| 696 | 575 // set image quality |
| 576 setquality : function (data, qual) { | |
| 577 var oldq = getQuality(data); | |
| 578 if (qual == null) { | |
| 579 qual = window.prompt("Image quality (0..2)", oldq); | |
| 580 } | |
| 581 qual = parseInt(qual, 10); | |
| 582 if (qual >= 0 && qual <= 2) { | |
| 583 setQuality(data, qual); | |
| 584 redisplay(data); | |
| 585 } | |
| 661 | 586 } |
| 598 | 587 }; |
| 597 | 588 |
| 601 | 589 // returns parameters from page url |
| 600 | 590 var parseQueryParams = function() { |
| 629 | 591 return parseQueryString(window.location.search.slice(1)); |
| 592 }; | |
| 648 | 593 |
| 629 | 594 // returns parameters from embedded img-element |
| 600 | 595 var parseImgParams = function($elem) { |
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596 var src = $elem.find('img').first().attr('src'); |
| 703 | 597 if (!src) return null; |
| 600 | 598 var pos = src.indexOf('?'); |
| 599 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 600 var scalerUrl = src.substring(0, pos); | |
| 620 | 601 var params = parseQueryString(query); |
| 602 params.scalerBaseUrl = scalerUrl; | |
| 603 return params; | |
| 629 | 604 }; |
| 600 | 605 |
| 601 | 606 // parses query parameter string into parameter object |
| 600 | 607 var parseQueryString = function(query) { |
| 694 | 608 var params = {}; |
| 609 if (query == null) return params; | |
| 600 | 610 var pairs = query.split("&"); |
| 629 | 611 //var keys = []; |
| 600 | 612 for (var i = 0; i < pairs.length; i++) { |
| 613 var pair = pairs[i].split("="); | |
| 614 if (pair.length === 2) { | |
| 620 | 615 params[pair[0]] = pair[1]; |
| 629 | 616 //keys.push(pair[0]); |
| 627 | 617 } |
| 629 | 618 } |
| 620 | 619 return params; |
| 629 | 620 }; |
| 661 | 621 |
| 636 | 622 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 623 var getParamString = function (settings, keys, defaults) { | |
| 608 | 624 var paramString = ''; |
| 643 | 625 var nx = false; |
| 608 | 626 for (i = 0; i < keys.length; ++i) { |
| 627 var key = keys[i]; | |
| 656 | 628 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 608 | 629 // first param gets no '&' |
| 643 | 630 if (nx) { |
| 631 paramString += '&'; | |
| 632 } else { | |
| 633 nx = true; | |
| 634 } | |
| 608 | 635 // add parm=val |
| 636 paramString += key + '=' + settings[key]; | |
| 636 | 637 } |
| 608 | 638 } |
| 639 return paramString; | |
| 624 | 640 }; |
| 641 | |
| 629 | 642 // returns URL and query string for Scaler |
| 643 var getScalerUrl = function (data) { | |
| 734 | 644 packParams(data); |
| 646 | 645 var settings = data.settings; |
| 645 | 646 if (settings.scalerBaseUrl == null) { |
| 647 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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648 } |
| 629 | 649 var keys = settings.scalerParamNames; |
| 636 | 650 var queryString = getParamString(settings, keys, defaults); |
| 629 | 651 var url = settings.scalerBaseUrl + '?' + queryString; |
| 652 return url; | |
| 653 }; | |
| 654 | |
| 734 | 655 // returns URL for bird's eye view image |
| 736 | 656 var getBirdImgUrl = function (data, moreParams) { |
| 734 | 657 var settings = data.settings; |
| 658 var birdDivOptions = { | |
| 659 dw : settings.birdDivWidth, | |
| 660 dh : settings.birdDivHeight | |
| 661 }; | |
| 736 | 662 var birdSettings = jQuery.extend({}, settings, birdDivOptions); |
| 734 | 663 // use only the relevant parameters |
| 736 | 664 if (moreParams == null) { |
| 665 var params = getParamString(birdSettings, settings.birdDivParams, defaults); | |
| 666 } else { | |
| 667 var params = getParamString(birdSettings, | |
| 668 settings.birdDivParams.concat(moreParams), defaults); | |
| 669 } | |
| 670 var url = settings.scalerBaseUrl + '?' + params; | |
| 734 | 671 return url; |
| 672 }; | |
| 673 | |
| 629 | 674 // returns URL and query string for current digilib |
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675 var getDigilibUrl = function (data) { |
| 636 | 676 packParams(data); |
| 629 | 677 var settings = data.settings; |
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678 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 737 | 679 return settings.digilibBaseUrl + '?' + queryString; |
| 629 | 680 }; |
| 681 | |
| 648 | 682 // processes some parameters into objects and stuff |
| 624 | 683 var unpackParams = function (data) { |
| 684 var settings = data.settings; | |
| 629 | 685 // zoom area |
| 624 | 686 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 636 | 687 data.zoomArea = zoomArea; |
| 629 | 688 // marks |
| 624 | 689 var marks = []; |
| 643 | 690 if (settings.mk) { |
| 691 var mk = settings.mk; | |
| 692 if (mk.indexOf(";") >= 0) { | |
| 693 var pa = mk.split(";"); // old format with ";" | |
| 694 } else { | |
| 695 var pa = mk.split(","); // new format | |
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696 } |
| 643 | 697 for (var i = 0; i < pa.length ; i++) { |
| 698 var pos = pa[i].split("/"); | |
| 699 if (pos.length > 1) { | |
| 700 marks.push(geom.position(pos[0], pos[1])); | |
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701 } |
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702 } |
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703 } |
| 636 | 704 data.marks = marks; |
| 643 | 705 // mo (Scaler flags) |
| 706 var flags = {}; | |
| 707 if (settings.mo) { | |
| 708 var pa = settings.mo.split(","); | |
| 709 for (var i = 0; i < pa.length ; i++) { | |
| 710 flags[pa[i]] = pa[i]; | |
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711 } |
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712 } |
| 643 | 713 data.scalerFlags = flags; |
| 716 | 714 retrieveOptions(data); |
| 648 | 715 }; |
| 716 | |
| 624 | 717 // put objects back into parameters |
| 718 var packParams = function (data) { | |
| 719 var settings = data.settings; | |
| 629 | 720 // zoom area |
| 636 | 721 if (data.zoomArea) { |
| 640 | 722 settings.wx = cropFloat(data.zoomArea.x); |
| 723 settings.wy = cropFloat(data.zoomArea.y); | |
| 724 settings.ww = cropFloat(data.zoomArea.width); | |
| 725 settings.wh = cropFloat(data.zoomArea.height); | |
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726 } |
| 629 | 727 // marks |
| 636 | 728 if (data.marks) { |
| 643 | 729 settings.mk = ''; |
| 636 | 730 for (var i = 0; i < data.marks.length; i++) { |
| 643 | 731 if (i) { |
| 732 settings.mk += ','; | |
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733 } |
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734 settings.mk += cropFloat(data.marks[i].x).toString() + |
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735 '/' + cropFloat(data.marks[i].y).toString(); |
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736 } |
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737 } |
| 643 | 738 // Scaler flags |
| 739 if (data.scalerFlags) { | |
| 740 var mo = ''; | |
| 741 for (var f in data.scalerFlags) { | |
| 742 if (mo) { | |
| 743 mo += ','; | |
| 744 } | |
| 745 mo += f; | |
| 746 } | |
| 747 settings.mo = mo; | |
| 748 } | |
| 703 | 749 // user interface options |
| 716 | 750 storeOptions(data); |
| 702 | 751 }; |
| 681 | 752 |
| 716 | 753 var storeOptions = function (data) { |
| 694 | 754 // save digilib options in cookie |
| 702 | 755 var settings = data.settings; |
| 756 if (data.dlOpts) { | |
| 757 // save digilib settings in options | |
| 758 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
| 759 data.dlOpts.buttons = settings.visibleButtonSets; | |
| 760 var clop = ''; | |
| 761 for (var o in data.dlOpts) { | |
| 762 if (clop) { | |
| 763 clop += '&'; | |
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764 } |
| 702 | 765 clop += o + '=' + data.dlOpts[o]; |
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766 } |
| 702 | 767 if (jQuery.cookie) { |
| 768 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 769 console.debug("set cookie=", ck, " value=", clop); | |
| 770 jQuery.cookie(ck, clop); | |
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771 } |
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772 } |
| 720 | 773 if (settings.interactionMode !== 'fullscreen' && jQuery.cookie) { |
| 774 // store normal parameters in cookie for embedded mode | |
| 775 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
| 776 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 777 console.debug("set cookie=", ck, " value=", qs); | |
| 778 jQuery.cookie(ck, qs); | |
| 779 } | |
| 624 | 780 }; |
| 648 | 781 |
| 716 | 782 var retrieveOptions = function (data) { |
| 702 | 783 // clop (digilib options) |
| 784 var opts = {}; | |
| 785 var settings = data.settings; | |
| 786 if (jQuery.cookie) { | |
| 787 // read from cookie | |
| 788 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 789 var cp = jQuery.cookie(ck); | |
| 790 console.debug("get cookie=", ck, " value=", cp); | |
| 791 // in query string format | |
| 792 opts = parseQueryString(cp); | |
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793 } |
| 702 | 794 data.dlOpts = opts; |
| 795 // birdview option | |
| 796 if (opts.birdview != null) { | |
| 797 settings.isBirdDivVisible = opts.birdview === '1'; | |
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798 } |
| 702 | 799 // visible button sets |
| 800 if (opts.buttons != null) { | |
| 801 settings.visibleButtonSets = opts.buttons; | |
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802 } |
| 704 | 803 }; |
| 702 | 804 |
| 615 | 805 // (re)load the img from a new scaler URL |
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806 var redisplay = function (data) { |
| 629 | 807 var settings = data.settings; |
| 808 if (settings.interactionMode === 'fullscreen') { | |
| 809 // update location.href (browser URL) in fullscreen mode | |
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810 var url = getDigilibUrl(data); |
| 629 | 811 var history = window.history; |
| 812 if (typeof(history.pushState) === 'function') { | |
| 813 console.debug("we could modify history, but we don't..."); | |
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814 } |
| 629 | 815 window.location = url; |
| 816 } else { | |
| 817 // embedded mode -- just change img src | |
| 818 var url = getScalerUrl(data); | |
| 819 data.$img.attr('src', url); | |
| 719 | 820 // redisplay bird img |
| 821 updateBirdDiv(data); | |
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822 } |
| 615 | 823 }; |
| 824 | |
| 655 | 825 // returns maximum size for scaler img in fullscreen mode |
| 826 var getFullscreenImgSize = function($elem) { | |
| 827 var $win = $(window); | |
| 828 var winH = $win.height(); | |
| 829 var winW = $win.width(); | |
| 830 // TODO: account for borders? | |
| 831 return geom.size(winW, winH); | |
| 832 }; | |
| 833 | |
| 601 | 834 // creates HTML structure for digilib in elem |
| 620 | 835 var setupScalerDiv = function (data) { |
| 836 var settings = data.settings; | |
| 640 | 837 var $elem = data.$elem; |
| 718 | 838 $elem.addClass('digilib'); |
| 721 | 839 var $img; |
| 840 var scalerUrl; | |
| 601 | 841 if (settings.interactionMode === 'fullscreen') { |
| 721 | 842 // fullscreen |
| 718 | 843 $elem.addClass('dl_fullscreen'); |
| 602 | 844 var imgSize = getFullscreenImgSize($elem); |
| 643 | 845 // fitwidth/height omits destination height/width |
| 721 | 846 if (data.dlOpts.fitheight == null) { |
| 643 | 847 settings.dw = imgSize.width; |
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848 } |
| 721 | 849 if (data.dlOpts.fitwidth == null) { |
| 643 | 850 settings.dh = imgSize.height; |
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851 } |
| 679 | 852 scalerUrl = getScalerUrl(data); |
| 721 | 853 $img = $('<img/>'); |
| 602 | 854 } else { |
| 721 | 855 // embedded mode -- try to keep img tag |
| 718 | 856 $elem.addClass('dl_embedded'); |
| 721 | 857 scalerUrl = getScalerUrl(data); |
| 616 | 858 $img = $elem.find('img'); |
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859 if ($img.length > 0) { |
| 721 | 860 oldUrl = $img.attr('src'); |
| 861 if (oldUrl === scalerUrl) { | |
| 862 console.debug("img detach:", $img); | |
| 863 $img.detach(); | |
| 864 } else { | |
| 865 $img = $('<img/>'); | |
| 866 } | |
|
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867 } else { |
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868 $img = $('<img/>'); |
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869 } |
| 601 | 870 } |
|
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871 // create new html |
|
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872 $elem.empty(); // TODO: should we keep stuff for customization? |
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873 var $scaler = $('<div class="scaler"/>'); |
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874 $elem.append($scaler); |
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875 $scaler.append($img); |
| 615 | 876 $img.addClass('pic'); |
| 642 | 877 data.$scaler = $scaler; |
| 629 | 878 data.$img = $img; |
| 680 | 879 // setup image load handler before setting the src attribute (IE bug) |
| 880 $img.load(scalerImgLoadedHandler(data)); | |
| 881 $img.attr('src', scalerUrl); | |
| 601 | 882 }; |
| 608 | 883 |
| 603 | 884 // creates HTML structure for buttons in elem |
| 690 | 885 var createButtons = function (data, buttonSetIdx) { |
| 640 | 886 var $elem = data.$elem; |
|
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887 var settings = data.settings; |
| 658 | 888 var mode = settings.interactionMode; |
|
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889 var buttonSettings = settings.buttonSettings[mode]; |
| 675 | 890 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
| 683 | 891 if (buttonGroup == null) { |
| 892 // no buttons here | |
| 893 return; | |
| 894 } | |
| 895 var $buttonsDiv = $('<div class="buttons"/>'); | |
| 675 | 896 var buttonNames = buttonSettings[buttonGroup]; |
| 897 for (var i = 0; i < buttonNames.length; i++) { | |
| 898 var buttonName = buttonNames[i]; | |
| 899 var buttonConfig = settings.buttons[buttonName]; | |
| 658 | 900 // construct the button html |
| 901 var $button = $('<div class="button"></div>'); | |
| 902 var $a = $('<a/>'); | |
| 903 var $img = $('<img class="button"/>'); | |
| 904 $buttonsDiv.append($button); | |
| 905 $button.append($a); | |
| 906 $a.append($img); | |
| 907 // add attributes and bindings | |
| 908 $button.attr('title', buttonConfig.tooltip); | |
| 675 | 909 $button.addClass('button-' + buttonName); |
| 658 | 910 // create handler for the buttons |
| 911 $a.bind('click.digilib', (function () { | |
| 912 // we create a new closure to capture the value of action | |
| 913 var action = buttonConfig.onclick; | |
| 914 if ($.isArray(action)) { | |
| 915 // the handler function calls digilib with action and parameters | |
| 916 return function (evt) { | |
| 917 console.debug('click action=', action, ' evt=', evt); | |
| 918 $elem.digilib.apply($elem, action); | |
| 919 return false; | |
| 920 }; | |
| 921 } else { | |
| 922 // the handler function calls digilib with action | |
| 923 return function (evt) { | |
| 924 console.debug('click action=', action, ' evt=', evt); | |
| 925 $elem.digilib(action); | |
| 926 return false; | |
| 927 }; | |
| 928 } | |
| 929 })()); | |
| 930 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
| 683 | 931 } |
| 655 | 932 // make buttons div scroll if too large for window |
| 933 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 934 $buttonsDiv.css('position', 'absolute'); | |
| 935 } | |
| 690 | 936 // buttons hidden at first |
| 937 $buttonsDiv.hide(); | |
| 938 $elem.append($buttonsDiv); | |
| 675 | 939 if (data.$buttonSets == null) { |
| 690 | 940 // first button set |
| 675 | 941 data.$buttonSets = [$buttonsDiv]; |
| 942 } else { | |
| 683 | 943 $elem.append($buttonsDiv); |
| 675 | 944 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
| 945 } | |
| 605 | 946 return $buttonsDiv; |
| 603 | 947 }; |
| 608 | 948 |
| 949 // creates HTML structure for the bird's eye view in elem | |
| 631 | 950 var setupBirdDiv = function (data) { |
| 640 | 951 var $elem = data.$elem; |
| 608 | 952 // the bird's eye div |
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953 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 608 | 954 // the detail indicator frame |
| 719 | 955 var $birdZoom = $('<div class="birdzoom" style="display:none; background-color:transparent;"/>'); |
| 608 | 956 // the small image |
| 957 var $birdImg = $('<img class="birdimg"/>'); | |
| 716 | 958 data.$birdDiv = $birdDiv; |
| 959 data.$birdZoom = $birdZoom; | |
| 960 data.$birdImg = $birdImg; | |
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961 $elem.append($birdDiv); |
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962 $birdDiv.append($birdZoom); |
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963 $birdDiv.append($birdImg); |
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964 $birdZoom.css(data.settings.birdIndicatorStyle); |
| 716 | 965 var birdUrl = getBirdImgUrl(data); |
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966 $birdImg.load(birdImgLoadedHandler(data)); |
| 716 | 967 $birdImg.attr('src', birdUrl); |
| 968 }; | |
| 969 | |
| 970 // update bird's eye view | |
| 971 var updateBirdDiv = function (data) { | |
| 972 if (!data.settings.isBirdDivVisible) return; | |
| 973 var $birdImg = data.$birdImg; | |
| 974 var oldsrc = $birdImg.attr('src'); | |
| 975 var newsrc = getBirdImgUrl(data); | |
| 976 if (oldsrc !== newsrc) { | |
| 977 $birdImg.attr('src', newsrc); | |
| 978 // onload handler re-renders | |
| 979 } else { | |
| 980 // re-render | |
| 981 renderBirdArea(data); | |
| 723 | 982 // enable click and drag |
|
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983 setupBirdDrag(data); |
| 716 | 984 } |
|
712
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985 }; |
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986 |
| 618 | 987 // creates HTML structure for the about view in elem |
|
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988 var setupAboutDiv = function (data) { |
| 640 | 989 var $elem = data.$elem; |
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990 var settings = data.settings; |
| 618 | 991 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 609 | 992 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 993 var $link = $('<a/>'); | |
| 994 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 995 var $content = $('<p/>'); | |
| 996 $elem.append($aboutDiv); | |
| 997 $aboutDiv.append($header); | |
| 998 $aboutDiv.append($link); | |
| 999 $aboutDiv.append($content); | |
| 1000 $link.append($logo); | |
| 1001 $logo.attr('src', settings.logoUrl); | |
| 628 | 1002 $link.attr('href', settings.homeUrl); |
| 609 | 1003 $content.text('Version: ' + settings.version); |
| 628 | 1004 // click hides |
| 642 | 1005 $aboutDiv.bind('click.digilib', function () { |
| 639 | 1006 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 642 | 1007 return false; |
| 703 | 1008 }); |
| 628 | 1009 data.$aboutDiv = $aboutDiv; |
| 627 | 1010 }; |
| 1011 | |
| 628 | 1012 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 1013 var showDiv = function (isVisible, $div, show) { | |
| 638 | 1014 if (show == null) { |
| 628 | 1015 // toggle visibility |
| 1016 isVisible = !isVisible; | |
| 1017 } else { | |
| 1018 // set visibility | |
| 1019 isVisible = show; | |
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1020 } |
| 628 | 1021 if (isVisible) { |
| 1022 $div.fadeIn(); | |
| 1023 } else { | |
| 1024 $div.fadeOut(); | |
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1025 } |
| 628 | 1026 return isVisible; |
| 627 | 1027 }; |
| 609 | 1028 |
| 690 | 1029 // display more (or less) button sets |
| 1030 var showButtons = function (data, more, setIdx, animated) { | |
| 704 | 1031 var atime = animated ? 'fast': 0; |
| 690 | 1032 if (more) { |
| 1033 // add set | |
| 1034 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 1035 var $set; | |
| 1036 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
| 1037 // set exists | |
| 1038 $set = data.$buttonSets[setIdx]; | |
| 1039 } else { | |
| 1040 $set = createButtons(data, setIdx); | |
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1041 } |
| 690 | 1042 if ($set == null) return false; |
| 1043 var btnWidth = $set.width(); | |
| 1044 // move remaining sets left and show new set | |
| 704 | 1045 if ($otherSets.length > 0) { |
| 1046 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
| 1047 function () {$set.show();}); | |
| 690 | 1048 } else { |
| 1049 $set.show(); | |
| 704 | 1050 } |
| 690 | 1051 } else { |
| 1052 // remove set | |
| 1053 var $set = data.$buttonSets[setIdx]; | |
| 1054 if ($set == null) return false; | |
| 1055 var btnWidth = $set.width(); | |
| 1056 // hide last set | |
| 1057 $set.hide(); | |
| 1058 // take remaining sets and move right | |
| 1059 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 704 | 1060 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
| 1061 } | |
| 690 | 1062 return true; |
| 1063 }; | |
| 1064 | |
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1065 // create Transform from area and $img |
| 668 | 1066 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
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1067 var picrect = geom.rectangle($img); |
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1068 var trafo = geom.transform(); |
| 668 | 1069 // move zoom area offset to center |
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1070 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 668 | 1071 // scale zoom area size to [1,1] |
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1072 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 668 | 1073 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 1074 if (rot || hmir || vmir) { | |
| 1075 // move [0.5,0.5] to center | |
| 1076 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 1077 if (hmir) { | |
| 1078 // mirror about center | |
| 1079 trafo.concat(trafo.getMirror('y')); | |
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1080 } |
| 668 | 1081 if (vmir) { |
| 1082 // mirror about center | |
| 1083 trafo.concat(trafo.getMirror('x')); | |
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1084 } |
| 668 | 1085 if (rot) { |
| 1086 // rotate around center | |
| 1087 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
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1088 } |
| 668 | 1089 // move back |
| 1090 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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1091 } |
|
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1092 // scale to screen position and size |
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1093 trafo.concat(trafo.getScale(picrect)); |
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1094 trafo.concat(trafo.getTranslation(picrect)); |
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1095 return trafo; |
| 648 | 1096 }; |
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1097 |
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1098 // returns function for load event of scaler img |
| 629 | 1099 var scalerImgLoadedHandler = function (data) { |
| 626 | 1100 return function () { |
| 716 | 1101 var $img = $(this); |
| 731 | 1102 var $scaler = data.$scaler; |
| 620 | 1103 // create Transform from current area and picsize |
| 668 | 1104 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
| 1105 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
| 679 | 1106 console.debug("imgTrafo=", data.imgTrafo); |
| 726 | 1107 // adjust scaler div size |
| 731 | 1108 var imgRect = geom.rectangle($img); |
| 726 | 1109 console.debug("imgrect=", imgRect); |
| 731 | 1110 imgRect.adjustDiv($scaler); |
| 708 | 1111 // show image in case it was hidden (for example in zoomDrag) |
| 726 | 1112 $img.css('visibility', 'visible'); |
| 734 | 1113 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
| 620 | 1114 // display marks |
| 626 | 1115 renderMarks(data); |
|
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1116 // enable drag-to-scroll |
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1117 setupZoomDrag(data); |
|
688
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1118 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation |
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1119 }; |
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1120 }; |
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1121 |
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1122 // returns function for load event of bird's eye view img |
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1123 var birdImgLoadedHandler = function (data) { |
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1124 return function () { |
| 716 | 1125 var $img = $(this); |
|
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1126 console.debug("birdimg loaded! this=", this, " data=", data); |
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1127 // create Transform from current area and picsize |
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1128 data.birdTrafo = getImgTrafo($img, FULL_AREA); |
| 661 | 1129 // display red indicator around zoomarea |
| 716 | 1130 renderBirdArea(data); |
| 1131 // enable click and drag | |
|
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1132 setupBirdDrag(data); |
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1133 }; |
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1134 }; |
| 626 | 1135 |
| 1136 // place marks on the image | |
| 1137 var renderMarks = function (data) { | |
| 640 | 1138 var $elem = data.$elem; |
| 636 | 1139 var marks = data.marks; |
|
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1140 // clear marks |
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1141 $elem.find('div.mark').remove(); |
| 626 | 1142 for (var i = 0; i < marks.length; i++) { |
| 1143 var mark = marks[i]; | |
| 636 | 1144 if (data.zoomArea.containsPosition(mark)) { |
| 626 | 1145 var mpos = data.imgTrafo.transform(mark); |
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1146 console.debug("renderMarks: mpos=",mpos); |
| 626 | 1147 // create mark |
| 1148 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 1149 var $mark = $(html); | |
| 1150 $elem.append($mark); | |
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1151 mpos.adjustDiv($mark); |
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1152 } |
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1153 } |
| 626 | 1154 }; |
| 648 | 1155 |
|
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1156 // show zoom area indicator on bird's eye view |
| 716 | 1157 var renderBirdArea = function (data) { |
|
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1158 var $birdZoom = data.$birdZoom; |
| 652 | 1159 var zoomArea = data.zoomArea; |
| 716 | 1160 var normalSize = isFullArea(zoomArea); |
| 1161 if (normalSize) { | |
| 1162 $birdZoom.hide(); | |
| 1163 return; | |
| 1164 } else { | |
| 1165 $birdZoom.show(); | |
| 1166 } | |
| 723 | 1167 // position may have changed |
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1168 data.birdTrafo = getImgTrafo(data.$birdImg, FULL_AREA); |
| 731 | 1169 var zoomRect = data.birdTrafo.transform(zoomArea); |
| 734 | 1170 // acount for border width |
| 1171 zoomRect.addPosition({x : -2, y : -2}); | |
|
663
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birdview: nice animation for embedded mode, none for fullscreen
hertzhaft
parents:
662
diff
changeset
|
1172 if (data.settings.interactionMode === 'fullscreen') { |
|
fda2d9bd9ba7
birdview: nice animation for embedded mode, none for fullscreen
hertzhaft
parents:
662
diff
changeset
|
1173 // no animation for fullscreen |
| 731 | 1174 zoomRect.adjustDiv($birdZoom); |
| 716 | 1175 } else { |
| 1176 // nice animation for embedded mode :-) | |
| 734 | 1177 // correct offsetParent because animate doesn't use offset |
| 719 | 1178 var ppos = $birdZoom.offsetParent().offset(); |
| 731 | 1179 var dest = { |
| 1180 left : (zoomRect.x - ppos.left) + 'px', | |
| 1181 top : (zoomRect.y - ppos.top) + 'px', | |
| 1182 width : zoomRect.width, | |
| 1183 height : zoomRect.height}; | |
| 1184 $birdZoom.animate(dest); | |
| 716 | 1185 } |
|
657
b0c6cc4a0932
work on getting transformation to work with rotation (currently still doesn't)
robcast
parents:
656
diff
changeset
|
1186 }; |
| 652 | 1187 |
| 640 | 1188 // zooms by the given factor |
| 636 | 1189 var zoomBy = function(data, factor) { |
| 1190 var area = data.zoomArea; | |
| 1191 var newarea = area.copy(); | |
| 1192 // scale | |
| 1193 newarea.width /= factor; | |
| 1194 newarea.height /= factor; | |
| 1195 // and recenter | |
| 1196 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 1197 newarea.y -= 0.5 * (newarea.height - area.height); | |
|
728
53584f90f66b
improved some embedded buttons; fixed reset function
hertzhaft
parents:
726
diff
changeset
|
1198 newarea = FULL_AREA.fit(newarea); |
| 636 | 1199 data.zoomArea = newarea; |
|
637
71cc855e2e4b
reload doesn't take list of changed parameters any more
robcast
parents:
636
diff
changeset
|
1200 redisplay(data); |
| 636 | 1201 }; |
| 1202 | |
| 640 | 1203 // add a mark where clicked |
| 1204 var setMark = function (data) { | |
| 642 | 1205 var $scaler = data.$scaler; |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1206 // unbind other handler |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1207 $scaler.unbind(".dlZoomDrag"); |
| 640 | 1208 // start event capturing |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1209 $scaler.one('mousedown.dlSetMark', function (evt) { |
| 640 | 1210 // event handler adding a new mark |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1211 console.log("setmark at=", evt); |
|
665
0d3d9517e448
image transform works now under rotation!!! (at least for multiples of 90deg)
robcast
parents:
664
diff
changeset
|
1212 var mpos = geom.position(evt); |
| 640 | 1213 var pos = data.imgTrafo.invtransform(mpos); |
| 1214 data.marks.push(pos); | |
| 1215 redisplay(data); | |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1216 return false; |
| 640 | 1217 }); |
| 1218 }; | |
| 661 | 1219 |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1220 // zoom to the area around two clicked points |
| 647 | 1221 var zoomArea = function(data) { |
| 1222 $elem = data.$elem; | |
| 1223 $scaler = data.$scaler; | |
| 1224 var pt1, pt2; | |
| 1225 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 1226 $elem.append($zoomDiv); | |
| 661 | 1227 $zoomDiv.css(data.settings.zoomrectStyle); |
| 647 | 1228 var picRect = geom.rectangle($scaler); |
| 1229 // FIX ME: is there a way to query the border width from CSS info? | |
| 1230 // rect.x -= 2; // account for overlay borders | |
| 1231 // rect.y -= 2; | |
| 1232 | |
| 1233 var zoomStart = function (evt) { | |
| 1234 pt1 = geom.position(evt); | |
| 1235 // setup and show zoom div | |
| 731 | 1236 pt1.adjustDiv($zoomDiv); |
| 661 | 1237 $zoomDiv.width(0).height(0); |
| 647 | 1238 $zoomDiv.show(); |
| 1239 // register events | |
| 731 | 1240 $elem.bind("mousemove.dlZoomArea", zoomMove); |
| 1241 $elem.bind("mouseup.dlZoomArea", zoomEnd); | |
| 647 | 1242 return false; |
| 1243 }; | |
| 661 | 1244 |
| 734 | 1245 // mouse move handler |
| 1246 var zoomMove = function (evt) { | |
| 1247 pt2 = geom.position(evt); | |
| 1248 var rect = geom.rectangle(pt1, pt2); | |
| 1249 rect.clipTo(picRect); | |
| 1250 // update zoom div | |
| 1251 rect.adjustDiv($zoomDiv); | |
| 1252 return false; | |
| 1253 }; | |
| 1254 | |
| 647 | 1255 // mouseup handler: end moving |
| 1256 var zoomEnd = function (evt) { | |
| 1257 pt2 = geom.position(evt); | |
| 1258 // assume a click and continue if the area is too small | |
| 1259 var clickRect = geom.rectangle(pt1, pt2); | |
| 703 | 1260 if (clickRect.getArea() <= 5) return false; |
| 647 | 1261 // hide zoom div |
| 1262 $zoomDiv.remove(); | |
| 1263 // unregister events | |
| 731 | 1264 $elem.unbind("mousemove.dlZoomArea", zoomMove); |
| 1265 $elem.unbind("mouseup.dlZoomArea", zoomEnd); | |
| 647 | 1266 // clip and transform |
| 1267 clickRect.clipTo(picRect); | |
| 1268 var area = data.imgTrafo.invtransform(clickRect); | |
| 1269 data.zoomArea = area; | |
| 1270 // zoomed is always fit | |
| 1271 data.settings.ws = 1; | |
| 731 | 1272 delete data.dlOpts.fitwidth; |
| 1273 delete data.dlOpts.fitheight; | |
| 647 | 1274 redisplay(data); |
| 1275 return false; | |
| 1276 }; | |
| 661 | 1277 |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1278 // clear old handler (also ZoomDrag) |
| 731 | 1279 $scaler.unbind('.dlZoomArea'); |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1280 $scaler.unbind(".dlZoomDrag"); |
| 731 | 1281 $elem.unbind('.dlZoomArea'); |
| 647 | 1282 // bind start zoom handler |
| 731 | 1283 $scaler.one('mousedown.dlZoomArea', zoomStart); |
| 647 | 1284 }; |
| 640 | 1285 |
| 716 | 1286 // 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
|
1287 var setupBirdDrag = function(data) { |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1288 var $birdImg = data.$birdImg; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
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diff
changeset
|
1289 var $birdZoom = data.$birdZoom; |
| 723 | 1290 var $document = $(document); |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1291 var startPos, newRect, birdImgRect, birdZoomRect; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1292 |
| 734 | 1293 // mousedown handler: start dragging bird zoom to a new position |
| 1294 var birdZoomStartDrag = function(evt) { | |
| 1295 startPos = geom.position(evt); | |
| 1296 // position may have changed | |
| 1297 data.birdTrafo = getImgTrafo($birdImg, FULL_AREA); | |
| 1298 birdImgRect = geom.rectangle($birdImg); | |
| 1299 birdZoomRect = geom.rectangle($birdZoom); | |
| 1300 newRect = null; | |
| 1301 $document.bind("mousemove.dlBirdMove", birdZoomMove); | |
| 1302 $document.bind("mouseup.dlBirdMove", birdZoomEndDrag); | |
| 1303 $birdZoom.bind("mousemove.dlBirdMove", birdZoomMove); | |
| 1304 $birdZoom.bind("mouseup.dlBirdMove", birdZoomEndDrag); | |
| 1305 return false; | |
| 1306 }; | |
| 1307 | |
| 726 | 1308 // mousemove handler: drag |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1309 var birdZoomMove = function(evt) { |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1310 var pos = geom.position(evt); |
| 723 | 1311 var delta = startPos.delta(pos); |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1312 // move birdZoom div, keeping size |
| 723 | 1313 newRect = birdZoomRect.copy(); |
| 726 | 1314 newRect.addPosition(delta); |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1315 // stay within birdimage |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
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diff
changeset
|
1316 newRect.stayInside(birdImgRect); |
| 723 | 1317 newRect.adjustDiv($birdZoom); |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1318 return false; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1319 }; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1320 |
| 726 | 1321 // mouseup handler: reload page |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1322 var birdZoomEndDrag = function(evt) { |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1323 var settings = data.settings; |
| 723 | 1324 $document.unbind("mousemove.dlBirdMove", birdZoomMove); |
| 1325 $document.unbind("mouseup.dlBirdMove", birdZoomEndDrag); | |
| 1326 $birdZoom.unbind("mousemove.dlBirdMove", birdZoomMove); | |
| 1327 $birdZoom.unbind("mouseup.dlBirdMove", birdZoomEndDrag); | |
| 1328 if (newRect == null) { | |
| 1329 // no movement happened - set center to click position | |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1330 startPos = birdZoomRect.getCenter(); |
| 723 | 1331 birdZoomMove(evt); |
|
706
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1332 } |
| 723 | 1333 var newArea = data.birdTrafo.invtransform(newRect); |
| 1334 data.zoomArea = newArea; | |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1335 redisplay(data); |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1336 return false; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1337 }; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1338 |
| 723 | 1339 // clear old handler |
| 1340 $document.unbind(".dlBirdMove"); | |
| 1341 $birdImg.unbind(".dlBirdMove"); | |
| 1342 $birdZoom.unbind(".dlBirdMove"); | |
|
725
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1343 if (! isFullArea(data.zoomArea)) { |
|
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1344 // set new handler |
|
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1345 $birdImg.bind("mousedown.dlBirdMove", birdZoomStartDrag); |
|
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1346 $birdZoom.bind("mousedown.dlBirdMove", birdZoomStartDrag); |
|
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1347 } |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1348 }; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1349 |
| 731 | 1350 // setup handlers for dragging the zoomed image |
| 698 | 1351 var setupZoomDrag = function(data) { |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1352 var startPos, delta, fullRect, isBgReady; |
| 726 | 1353 var $document = $(document); |
| 698 | 1354 var $elem = data.$elem; |
| 1355 var $scaler = data.$scaler; | |
| 1356 var $img = data.$img; | |
| 703 | 1357 |
| 726 | 1358 // drag the image and load a new detail on mouse up |
| 698 | 1359 var dragStart = function (evt) { |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1360 console.debug("dragstart at=",evt); |
|
730
98a405711289
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
729
diff
changeset
|
1361 // don't start dragging if not zoomed |
|
98a405711289
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
729
diff
changeset
|
1362 if (isFullArea(data.zoomArea)) return false; |
| 726 | 1363 startPos = geom.position(evt); |
| 734 | 1364 fullRect = null; |
| 1365 delta = null; | |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1366 isBgReady = false; |
| 726 | 1367 $document.bind("mousemove.dlZoomDrag", dragMove); |
| 1368 $document.bind("mouseup.dlZoomDrag", dragEnd); | |
|
706
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1369 return false; |
| 698 | 1370 }; |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1371 |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1372 |
| 726 | 1373 // mousemove handler: drag zoomed image |
| 698 | 1374 var dragMove = function (evt) { |
| 1375 var pos = geom.position(evt); | |
| 734 | 1376 delta = startPos.delta(pos); |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1377 if (!isBgReady) { |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1378 // hide the scaler img, show background of div instead |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1379 $img.css('visibility', 'hidden'); |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1380 var scalerCss = { |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1381 'background-image' : 'url(' + $img.attr('src') + ')', |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1382 'background-repeat' : 'no-repeat', |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1383 'background-position' : 'left top', |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1384 'opacity' : '0.5', |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1385 'cursor' : 'move' |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1386 }; |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1387 if (data.hasBgSize) { |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1388 // full-size background using CSS3-background-size |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1389 fullRect = data.imgTrafo.transform(FULL_AREA); |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1390 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) { |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1391 // correct offset because background is relative |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1392 var scalePos = geom.position($scaler); |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1393 fullRect.addPosition(scalePos.neg()); |
| 736 | 1394 var url = getBirdImgUrl(data, ['rot', 'mo']); |
| 1395 scalerCss['background-image'] = 'url(' + url + ')'; | |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1396 scalerCss[data.bgSizeName] = fullRect.width + 'px ' + fullRect.height + 'px'; |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1397 scalerCss['background-position'] = fullRect.x + 'px '+ fullRect.y + 'px'; |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1398 } else { |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1399 // too big |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1400 fullRect = null; |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1401 } |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1402 } |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1403 $scaler.css(scalerCss); |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1404 isBgReady = true; |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1405 } |
| 734 | 1406 if (fullRect) { |
| 1407 var bgPos = fullRect.getPosition().add(delta); | |
| 1408 } else { | |
| 1409 var bgPos = delta; | |
| 1410 } | |
| 698 | 1411 // move the background image to the new position |
| 708 | 1412 $scaler.css({ |
| 734 | 1413 'background-position' : bgPos.x + "px " + bgPos.y + "px" |
| 698 | 1414 }); |
| 1415 return false; | |
| 1416 }; | |
| 703 | 1417 |
| 726 | 1418 // mouseup handler: reload zoomed image in new position |
| 698 | 1419 var dragEnd = function (evt) { |
| 732 | 1420 $scaler.css('cursor', 'auto'); |
| 726 | 1421 $document.unbind("mousemove.dlZoomDrag", dragMove); |
| 1422 $document.unbind("mouseup.dlZoomDrag", dragEnd); | |
| 1423 if (delta == null || delta.distance() < 2) { | |
| 1424 // no movement | |
| 1425 $img.css('visibility', 'visible'); | |
| 734 | 1426 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
| 726 | 1427 return false; |
| 1428 } | |
| 1429 // get old zoom area (screen coordinates) | |
| 734 | 1430 var za = geom.rectangle($img); |
| 726 | 1431 // move |
| 734 | 1432 za.addPosition(delta.neg()); |
| 726 | 1433 // transform back |
| 1434 var newArea = data.imgTrafo.invtransform(za); | |
|
728
53584f90f66b
improved some embedded buttons; fixed reset function
hertzhaft
parents:
726
diff
changeset
|
1435 data.zoomArea = FULL_AREA.fit(newArea); |
|
701
2660b733a1e7
img reload works for fullscreen, but somehow not precise
hertzhaft
parents:
700
diff
changeset
|
1436 redisplay(data); |
| 698 | 1437 return false; |
| 1438 }; | |
|
728
53584f90f66b
improved some embedded buttons; fixed reset function
hertzhaft
parents:
726
diff
changeset
|
1439 |
| 726 | 1440 // clear old handler |
| 1441 $document.unbind(".dlZoomDrag"); | |
| 734 | 1442 $scaler.unbind(".dlZoomDrag"); |
|
735
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1443 if (! isFullArea(data.zoomArea)) { |
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|
1444 // set handler |
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1445 $scaler.bind("mousedown.dlZoomDrag", dragStart); |
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1446 } |
| 698 | 1447 }; |
| 1448 | |
| 696 | 1449 // get image quality as a number (0..2) |
| 1450 var getQuality = function (data) { | |
| 1451 var flags = data.scalerFlags; | |
| 1452 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
| 1453 return parseInt(q[1], 10); | |
| 699 | 1454 }; |
| 696 | 1455 |
| 1456 // set image quality as a number (0..2) | |
| 1457 var setQuality = function (data, qual) { | |
| 1458 var flags = data.scalerFlags; | |
| 1459 // clear flags | |
| 1460 for (var i = 0; i < 3; ++i) { | |
| 1461 delete flags['q'+i]; | |
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1462 } |
| 696 | 1463 flags['q'+qual] = 'q'+qual; |
| 699 | 1464 }; |
| 703 | 1465 |
| 643 | 1466 // sets a key to a value (relative values with +/- if relative=true) |
| 1467 var setNumValue = function(settings, key, value) { | |
| 709 | 1468 if (value == null) return null; |
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1469 if (isNumber(value)) { |
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1470 settings[key] = value; |
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1471 return value; |
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1472 } |
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1473 var sign = value[0]; |
| 643 | 1474 if (sign === '+' || sign === '-') { |
| 1475 if (settings[key] == null) { | |
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1476 // this isn't perfect but still... |
| 643 | 1477 settings[key] = 0; |
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1478 } |
| 643 | 1479 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
| 1480 } else { | |
| 1481 settings[key] = value; | |
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1482 } |
| 643 | 1483 return settings[key]; |
| 1484 }; | |
| 648 | 1485 |
| 1486 // auxiliary function (from old dllib.js) | |
|
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1487 var isFullArea = function(area) { |
| 652 | 1488 return (area.width === 1.0) && (area.height === 1.0); |
| 648 | 1489 }; |
| 1490 | |
| 634 | 1491 // auxiliary function (from Douglas Crockford, A.10) |
| 1492 var isNumber = function isNumber(value) { | |
| 703 | 1493 return typeof value === 'number' && isFinite(value); |
| 634 | 1494 }; |
| 648 | 1495 |
| 624 | 1496 // auxiliary function to crop senseless precision |
| 1497 var cropFloat = function (x) { | |
| 630 | 1498 return parseInt(10000 * x, 10) / 10000; |
| 624 | 1499 }; |
| 648 | 1500 |
| 685 | 1501 // fallback for console.log calls |
| 1502 if (customConsole) { | |
| 1503 var logFunction = function(type) { | |
| 1504 return function(){ | |
| 1505 var $debug = $('#debug'); // debug div | |
| 1506 if (!$debug) return; | |
| 1507 var args = Array.prototype.slice.call(arguments); | |
| 1508 var argtext = args.join(' '); | |
| 1509 var $logDiv = $('<div/>'); | |
| 1510 $logDiv.addClass(type); | |
| 1511 $logDiv.text(argtext); | |
| 1512 $debug.append($logDiv); | |
| 1513 }; | |
| 1514 }; | |
| 1515 console.log = logFunction('_log'); | |
| 1516 console.debug = logFunction('_debug'); | |
| 1517 console.error = logFunction('_error'); | |
|
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1518 } |
| 685 | 1519 |
| 598 | 1520 // hook plugin into jquery |
|
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1521 $.fn.digilib = function(action) { |
|
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1522 if (actions[action]) { |
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1523 // call action on this with the remaining arguments (inserting data as first argument) |
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1524 var $elem = $(this); |
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1525 var data = $elem.data('digilib'); |
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1526 var args = Array.prototype.slice.call(arguments, 1); |
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1527 args.unshift(data); |
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1528 return actions[action].apply(this, args); |
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1529 } else if (typeof(action) === 'object' || !action) { |
| 627 | 1530 // call init on this |
|
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1531 return actions.init.apply(this, arguments); |
| 598 | 1532 } else { |
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1533 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
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1534 } |
| 598 | 1535 }; |
| 685 | 1536 |
| 597 | 1537 })(jQuery); |