Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 753:8452a485e0e7 jquery
primitive plugin extension mechanism - unsure how useful this is
| author | hertzhaft |
|---|---|
| date | Tue, 08 Feb 2011 23:57:39 +0100 |
| parents | fb4ffac2950d |
| children | 17539f6838b6 |
| 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 **/ |
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23 |
| 648 | 24 |
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25 /* jslint browser: true, debug: true, forin: true |
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26 */ |
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27 |
| 629 | 28 // fallback for console.log calls |
| 29 if (typeof(console) === 'undefined') { | |
| 30 var console = { | |
| 685 | 31 log : function(){}, |
| 32 debug : function(){}, | |
| 33 error : function(){} | |
| 34 }; | |
| 35 var customConsole = true; | |
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36 } |
| 597 | 37 |
| 38 (function($) { | |
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39 var buttons = { |
| 603 | 40 reference : { |
| 682 | 41 onclick : "reference", |
| 603 | 42 tooltip : "get a reference URL", |
| 43 img : "reference.png" | |
| 44 }, | |
| 45 zoomin : { | |
| 636 | 46 onclick : ["zoomBy", 1.4], |
| 603 | 47 tooltip : "zoom in", |
| 48 img : "zoom-in.png" | |
| 49 }, | |
| 50 zoomout : { | |
| 636 | 51 onclick : ["zoomBy", 0.7], |
| 603 | 52 tooltip : "zoom out", |
| 53 img : "zoom-out.png" | |
| 54 }, | |
| 55 zoomarea : { | |
| 647 | 56 onclick : "zoomArea", |
| 603 | 57 tooltip : "zoom area", |
| 58 img : "zoom-area.png" | |
| 59 }, | |
| 60 zoomfull : { | |
| 643 | 61 onclick : "zoomFull", |
| 603 | 62 tooltip : "view the whole image", |
| 63 img : "zoom-full.png" | |
| 64 }, | |
| 65 pagewidth : { | |
| 643 | 66 onclick : ["zoomFull", "width"], |
| 603 | 67 tooltip : "page width", |
| 68 img : "pagewidth.png" | |
| 69 }, | |
| 70 back : { | |
| 616 | 71 onclick : ["gotoPage", "-1"], |
| 603 | 72 tooltip : "goto previous image", |
| 73 img : "back.png" | |
| 74 }, | |
| 75 fwd : { | |
| 616 | 76 onclick : ["gotoPage", "+1"], |
| 603 | 77 tooltip : "goto next image", |
| 78 img : "fwd.png" | |
| 79 }, | |
| 80 page : { | |
| 709 | 81 onclick : "gotoPage", |
| 82 tooltip : "goto image number", | |
| 603 | 83 img : "page.png" |
| 84 }, | |
| 85 bird : { | |
| 628 | 86 onclick : "showBirdDiv", |
| 603 | 87 tooltip : "show bird's eye view", |
| 88 img : "birds-eye.png" | |
| 89 }, | |
| 90 help : { | |
| 628 | 91 onclick : "showAboutDiv", |
| 603 | 92 tooltip : "about Digilib", |
| 93 img : "help.png" | |
| 94 }, | |
| 95 reset : { | |
| 681 | 96 onclick : "reset", |
| 603 | 97 tooltip : "reset image", |
| 98 img : "reset.png" | |
| 99 }, | |
| 100 mark : { | |
| 640 | 101 onclick : "setMark", |
| 603 | 102 tooltip : "set a mark", |
| 103 img : "mark.png" | |
| 104 }, | |
| 105 delmark : { | |
| 643 | 106 onclick : "removeMark", |
| 603 | 107 tooltip : "delete the last mark", |
| 108 img : "delmark.png" | |
| 109 }, | |
| 110 hmir : { | |
| 654 | 111 onclick : ["mirror", "h"], |
| 603 | 112 tooltip : "mirror horizontally", |
| 113 img : "mirror-horizontal.png" | |
| 114 }, | |
| 115 vmir : { | |
| 654 | 116 onclick : ["mirror", "v"], |
| 603 | 117 tooltip : "mirror vertically", |
| 118 img : "mirror-vertical.png" | |
| 119 }, | |
| 120 rot : { | |
| 656 | 121 onclick : "rotate", |
| 603 | 122 tooltip : "rotate image", |
| 123 img : "rotate.png" | |
| 124 }, | |
| 125 brgt : { | |
| 656 | 126 onclick : "brightness", |
| 603 | 127 tooltip : "set brightness", |
| 128 img : "brightness.png" | |
| 129 }, | |
| 130 cont : { | |
| 656 | 131 onclick : "contrast", |
| 603 | 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 : { | |
| 741 | 141 onclick : "setQuality", |
| 603 | 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 : { | |
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151 onclick : "calibrate", |
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152 tooltip : "calibrate screen resolution", |
| 603 | 153 img : "calibration-x.png" |
| 154 }, | |
| 155 scale : { | |
| 156 onclick : "javascript:toggleScaleMenu()", | |
| 157 tooltip : "change image scale", | |
| 158 img : "original-size.png" | |
| 159 }, | |
| 692 | 160 toggleoptions : { |
| 741 | 161 onclick : "moreButtons", |
| 692 | 162 tooltip : "more options", |
| 163 img : "options.png" | |
| 164 }, | |
| 683 | 165 moreoptions : { |
| 741 | 166 onclick : ["moreButtons", "+1"], |
| 683 | 167 tooltip : "more options", |
| 168 img : "options.png" | |
| 169 }, | |
| 170 lessoptions : { | |
| 741 | 171 onclick : ["moreButtons", "-1"], |
| 683 | 172 tooltip : "less options", |
| 603 | 173 img : "options.png" |
| 174 }, | |
| 175 SEP : { | |
| 176 img : "sep.png" | |
| 177 } | |
| 178 }; | |
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179 |
| 598 | 180 var defaults = { |
| 609 | 181 // version of this script |
| 628 | 182 'version' : 'jquery.digilib.js 0.9', |
| 609 | 183 // logo url |
| 184 'logoUrl' : '../img/digilib-logo-text1.png', | |
| 628 | 185 // homepage url (behind logo) |
| 186 'homeUrl' : 'http://digilib.berlios.de', | |
| 737 | 187 // base URL to digilib viewer (for reference URLs) |
| 188 'digilibBaseUrl' : null, | |
| 603 | 189 // base URL to Scaler servlet |
| 645 | 190 'scalerBaseUrl' : null, |
| 603 | 191 // list of Scaler parameters |
| 620 | 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 | |
| 636 | 195 'pn' : 1, |
| 620 | 196 'ww' : 1.0, |
| 197 'wh' : 1.0, | |
| 198 'wx' : 0.0, | |
| 199 'wy' : 0.0, | |
| 200 'ws' : 1.0, | |
| 636 | 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 |
| 643 | 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 |
| 636 | 213 'mk' : '', |
| 643 | 214 'clop' : '', |
| 636 | 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 | |
| 603 | 218 'interactionMode' : 'fullscreen', |
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219 // buttons |
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220 'buttons' : buttons, |
| 661 | 221 // defaults for digilib buttons |
| 658 | 222 'buttonSettings' : { |
| 223 'fullscreen' : { | |
| 661 | 224 // path to button images (must end with a slash) |
| 658 | 225 'imagePath' : 'img/fullscreen/', |
| 714 | 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"], | |
| 675 | 228 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 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"], |
| 675 | 234 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 235 } |
| 690 | 236 }, |
| 237 // number of visible button groups | |
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238 'visibleButtonSets' : 1, |
| 609 | 239 // is birdView shown? |
| 240 'isBirdDivVisible' : false, | |
| 661 | 241 // dimensions of bird's eye div |
| 667 | 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'], |
| 661 | 246 // style of the zoom area indicator in the bird's eye div |
| 652 | 247 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
| 661 | 248 // style of zoom area "rubber band" |
| 249 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
| 609 | 250 // is the "about" window shown? |
| 734 | 251 'isAboutDivVisible' : false, |
| 252 // maximum width of background image for drag-scroll | |
| 253 'maxBgSize' : 10000 | |
| 609 | 254 |
| 603 | 255 }; |
| 648 | 256 |
| 601 | 257 // affine geometry classes |
| 258 var geom = dlGeometry(); | |
| 648 | 259 |
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260 var FULL_AREA = geom.rectangle(0, 0, 1, 1); |
| 648 | 261 |
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262 var actions = { |
| 661 | 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'; | |
| 645 | 281 } |
| 282 } | |
| 629 | 283 } |
| 661 | 284 } |
| 285 return this.each(function() { | |
| 286 var $elem = $(this); | |
| 287 var data = $elem.data('digilib'); | |
| 681 | 288 var params, elemSettings; |
| 661 | 289 // if the plugin hasn't been initialized yet |
| 290 if (!data) { | |
| 291 // merge query parameters | |
| 292 if (isFullscreen) { | |
| 681 | 293 params = queryParams; |
| 661 | 294 } else { |
| 681 | 295 params = parseImgParams($elem); |
| 720 | 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); | |
| 721 | 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); | |
| 720 | 307 } |
| 308 } | |
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309 } |
| 661 | 310 // store $(this) element in the settings |
| 721 | 311 elemSettings = jQuery.extend({}, settings, params); |
| 690 | 312 data = { |
| 661 | 313 $elem : $elem, |
| 314 settings : elemSettings, | |
| 681 | 315 queryParams : params |
| 661 | 316 }; |
| 317 // store in data element | |
| 318 $elem.data('digilib', data); | |
| 319 } | |
| 320 unpackParams(data); | |
| 737 | 321 // check if browser knows *background-size |
| 734 | 322 for (var bs in {'':1, '-moz-':1, '-webkit-':1, '-o-':1}) { |
| 323 if ($elem.css(bs+'background-size')) { | |
| 324 data.hasBgSize = true; | |
| 325 data.bgSizeName = bs+'background-size'; | |
| 326 break; | |
| 327 } | |
| 328 } | |
| 737 | 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 } | |
| 675 | 345 // create HTML structure for scaler |
| 661 | 346 setupScalerDiv(data); |
| 690 | 347 // add buttons |
| 348 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { | |
| 349 showButtons(data, true, i); | |
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350 } |
| 661 | 351 // bird's eye view creation |
| 703 | 352 if (elemSettings.isBirdDivVisible) { |
| 631 | 353 setupBirdDiv(data); |
| 716 | 354 data.$birdDiv.show(); |
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355 } |
| 661 | 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 |
| 748 | 359 // setupZoomDrag(data); // is done in scalerImgLoadedHandler() |
| 661 | 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 }, | |
| 648 | 377 |
| 661 | 378 // event handler: toggles the visibility of the bird's eye window |
| 379 showBirdDiv : function (data, show) { | |
| 719 | 380 var settings = data.settings; |
| 661 | 381 if (data.$birdDiv == null) { |
| 382 // no bird div -> create | |
| 383 setupBirdDiv(data); | |
| 384 } | |
| 719 | 385 settings.isBirdDivVisible = showDiv(settings.isBirdDivVisible, data.$birdDiv, show); |
| 386 updateBirdDiv(data); | |
| 716 | 387 storeOptions(data); |
| 388 // data.$birdImg.triggerHandler('load'); // TODO: we shouldn't do that | |
| 661 | 389 }, |
| 390 | |
| 391 // goto given page nr (+/-: relative) | |
| 392 gotoPage : function (data, pageNr) { | |
| 393 var settings = data.settings; | |
| 394 var oldpn = settings.pn; | |
| 709 | 395 if (pageNr == null) { |
| 396 pageNr = window.prompt("Goto page number", oldpn); | |
| 397 } | |
| 661 | 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)"); | |
| 616 | 408 settings.pn = oldpn; |
| 409 return false; | |
| 627 | 410 } |
| 661 | 411 } |
| 412 // reset mk and others(?) | |
| 413 data.marks = []; | |
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414 data.zoomArea = FULL_AREA; |
| 661 | 415 // then reload |
| 416 redisplay(data); | |
| 417 }, | |
| 647 | 418 |
| 661 | 419 // zoom by a given factor |
| 420 zoomBy : function (data, factor) { | |
| 421 zoomBy(data, factor); | |
| 422 }, | |
| 640 | 423 |
| 661 | 424 // zoom interactively |
| 425 zoomArea : function (data) { | |
| 426 zoomArea(data); | |
| 427 }, | |
| 643 | 428 |
| 661 | 429 // zoom out to full page |
| 430 zoomFull : function (data, mode) { | |
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431 data.zoomArea = FULL_AREA; |
| 661 | 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); | |
| 656 | 453 redisplay(data); |
| 597 | 454 } |
| 661 | 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 }, | |
| 643 | 481 |
| 661 | 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); | |
| 681 | 510 }, |
| 703 | 511 |
| 683 | 512 // display more (or less) button sets |
| 741 | 513 moreButtons : function (data, more) { |
| 689 | 514 var settings = data.settings; |
| 692 | 515 if (more == null) { |
| 696 | 516 // toggle more or less (only works for 2 sets) |
| 692 | 517 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
| 518 if (settings.visibleButtonSets >= maxbtns) { | |
| 519 more = '-1'; | |
| 520 } else { | |
| 521 more = '+1'; | |
| 522 } | |
| 523 } | |
| 683 | 524 if (more === '-1') { |
| 525 // remove set | |
| 690 | 526 var setIdx = settings.visibleButtonSets - 1; |
| 527 if (showButtons(data, false, setIdx, true)) { | |
| 528 settings.visibleButtonSets--; | |
| 529 } | |
| 683 | 530 } else { |
| 531 // add set | |
| 690 | 532 var setIdx = settings.visibleButtonSets; |
| 533 if (showButtons(data, true, setIdx, true)) { | |
| 534 settings.visibleButtonSets++; | |
| 683 | 535 } |
| 536 } | |
| 716 | 537 // persist setting |
| 538 storeOptions(data); | |
| 684 | 539 }, |
| 681 | 540 |
| 696 | 541 // reset image parameters to defaults |
| 681 | 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; |
| 702 | 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 = {}; |
| 705 | 561 delete data.dlOpts.fitwidth; |
| 562 delete data.dlOpts.fitheight; | |
| 681 | 563 redisplay(data); |
| 682 | 564 }, |
| 565 | |
| 696 | 566 // presents a reference url (returns value if noprompt) |
| 567 reference : function (data, noprompt) { | |
| 682 | 568 var settings = data.settings; |
| 737 | 569 var url = getDigilibUrl(data); |
| 696 | 570 if (noprompt == null) { |
| 571 window.prompt("URL reference to the current view", url); | |
| 572 } | |
| 573 return url; | |
| 574 }, | |
| 703 | 575 |
| 696 | 576 // set image quality |
| 741 | 577 setQuality : function (data, qual) { |
| 696 | 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 } | |
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587 }, |
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588 |
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589 // calibrate (only faking) |
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590 calibrate : function (data) { |
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591 getImageInfo(data); |
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592 }, |
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593 |
| 598 | 594 }; |
| 597 | 595 |
| 601 | 596 // returns parameters from page url |
| 600 | 597 var parseQueryParams = function() { |
| 629 | 598 return parseQueryString(window.location.search.slice(1)); |
| 599 }; | |
| 648 | 600 |
| 629 | 601 // returns parameters from embedded img-element |
| 600 | 602 var parseImgParams = function($elem) { |
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603 var src = $elem.find('img').first().attr('src'); |
| 703 | 604 if (!src) return null; |
| 600 | 605 var pos = src.indexOf('?'); |
| 606 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 607 var scalerUrl = src.substring(0, pos); | |
| 620 | 608 var params = parseQueryString(query); |
| 609 params.scalerBaseUrl = scalerUrl; | |
| 610 return params; | |
| 629 | 611 }; |
| 600 | 612 |
| 601 | 613 // parses query parameter string into parameter object |
| 600 | 614 var parseQueryString = function(query) { |
| 694 | 615 var params = {}; |
| 616 if (query == null) return params; | |
| 600 | 617 var pairs = query.split("&"); |
| 629 | 618 //var keys = []; |
| 600 | 619 for (var i = 0; i < pairs.length; i++) { |
| 620 var pair = pairs[i].split("="); | |
| 621 if (pair.length === 2) { | |
| 620 | 622 params[pair[0]] = pair[1]; |
| 629 | 623 //keys.push(pair[0]); |
| 627 | 624 } |
| 629 | 625 } |
| 620 | 626 return params; |
| 629 | 627 }; |
| 661 | 628 |
| 636 | 629 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 630 var getParamString = function (settings, keys, defaults) { | |
| 608 | 631 var paramString = ''; |
| 643 | 632 var nx = false; |
| 608 | 633 for (i = 0; i < keys.length; ++i) { |
| 634 var key = keys[i]; | |
| 656 | 635 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 608 | 636 // first param gets no '&' |
| 643 | 637 if (nx) { |
| 638 paramString += '&'; | |
| 639 } else { | |
| 640 nx = true; | |
| 641 } | |
| 608 | 642 // add parm=val |
| 643 paramString += key + '=' + settings[key]; | |
| 636 | 644 } |
| 608 | 645 } |
| 646 return paramString; | |
| 624 | 647 }; |
| 648 | |
| 629 | 649 // returns URL and query string for Scaler |
| 650 var getScalerUrl = function (data) { | |
| 734 | 651 packParams(data); |
| 646 | 652 var settings = data.settings; |
| 645 | 653 if (settings.scalerBaseUrl == null) { |
| 654 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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655 } |
| 629 | 656 var keys = settings.scalerParamNames; |
| 636 | 657 var queryString = getParamString(settings, keys, defaults); |
| 629 | 658 var url = settings.scalerBaseUrl + '?' + queryString; |
| 659 return url; | |
| 660 }; | |
| 661 | |
| 734 | 662 // returns URL for bird's eye view image |
| 736 | 663 var getBirdImgUrl = function (data, moreParams) { |
| 734 | 664 var settings = data.settings; |
| 665 var birdDivOptions = { | |
| 666 dw : settings.birdDivWidth, | |
| 667 dh : settings.birdDivHeight | |
| 668 }; | |
| 736 | 669 var birdSettings = jQuery.extend({}, settings, birdDivOptions); |
| 734 | 670 // use only the relevant parameters |
| 736 | 671 if (moreParams == null) { |
| 672 var params = getParamString(birdSettings, settings.birdDivParams, defaults); | |
| 673 } else { | |
| 674 var params = getParamString(birdSettings, | |
| 675 settings.birdDivParams.concat(moreParams), defaults); | |
| 676 } | |
| 677 var url = settings.scalerBaseUrl + '?' + params; | |
| 734 | 678 return url; |
| 679 }; | |
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680 |
| 629 | 681 // returns URL and query string for current digilib |
|
637
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682 var getDigilibUrl = function (data) { |
| 636 | 683 packParams(data); |
| 629 | 684 var settings = data.settings; |
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685 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 737 | 686 return settings.digilibBaseUrl + '?' + queryString; |
| 629 | 687 }; |
| 688 | |
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689 // gets image information from digilib server via HTTP and calls complete |
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690 var getImageInfo = function (data, complete) { |
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691 var settings = data.settings; |
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692 var p = settings.scalerBaseUrl.indexOf('/servlet/Scaler'); |
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693 var url = settings.scalerBaseUrl.substring(0, p) + '/ImgInfo-json.jsp'; |
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694 url += '?' + getParamString(settings, ['fn', 'pn'], defaults); |
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695 jQuery.getJSON(url, function (json) { |
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696 console.debug("got json data=", json); |
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697 data.imgInfo = json; |
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698 if (complete != null) { |
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699 complete.call(this, data, json); |
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700 } |
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701 }); |
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702 }; |
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703 |
| 648 | 704 // processes some parameters into objects and stuff |
| 624 | 705 var unpackParams = function (data) { |
| 706 var settings = data.settings; | |
| 629 | 707 // zoom area |
| 624 | 708 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 636 | 709 data.zoomArea = zoomArea; |
| 629 | 710 // marks |
| 624 | 711 var marks = []; |
| 643 | 712 if (settings.mk) { |
| 713 var mk = settings.mk; | |
| 714 if (mk.indexOf(";") >= 0) { | |
| 715 var pa = mk.split(";"); // old format with ";" | |
| 716 } else { | |
| 717 var pa = mk.split(","); // new format | |
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718 } |
| 643 | 719 for (var i = 0; i < pa.length ; i++) { |
| 720 var pos = pa[i].split("/"); | |
| 721 if (pos.length > 1) { | |
| 722 marks.push(geom.position(pos[0], pos[1])); | |
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723 } |
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724 } |
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725 } |
| 636 | 726 data.marks = marks; |
| 643 | 727 // mo (Scaler flags) |
| 728 var flags = {}; | |
| 729 if (settings.mo) { | |
| 730 var pa = settings.mo.split(","); | |
| 731 for (var i = 0; i < pa.length ; i++) { | |
| 732 flags[pa[i]] = pa[i]; | |
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733 } |
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734 } |
| 643 | 735 data.scalerFlags = flags; |
| 716 | 736 retrieveOptions(data); |
| 648 | 737 }; |
| 738 | |
| 624 | 739 // put objects back into parameters |
| 740 var packParams = function (data) { | |
| 741 var settings = data.settings; | |
| 629 | 742 // zoom area |
| 636 | 743 if (data.zoomArea) { |
| 640 | 744 settings.wx = cropFloat(data.zoomArea.x); |
| 745 settings.wy = cropFloat(data.zoomArea.y); | |
| 746 settings.ww = cropFloat(data.zoomArea.width); | |
| 747 settings.wh = cropFloat(data.zoomArea.height); | |
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748 } |
| 629 | 749 // marks |
| 636 | 750 if (data.marks) { |
| 643 | 751 settings.mk = ''; |
| 636 | 752 for (var i = 0; i < data.marks.length; i++) { |
| 643 | 753 if (i) { |
| 754 settings.mk += ','; | |
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755 } |
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756 settings.mk += cropFloat(data.marks[i].x).toString() + |
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757 '/' + cropFloat(data.marks[i].y).toString(); |
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758 } |
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759 } |
| 643 | 760 // Scaler flags |
| 761 if (data.scalerFlags) { | |
| 762 var mo = ''; | |
| 763 for (var f in data.scalerFlags) { | |
| 764 if (mo) { | |
| 765 mo += ','; | |
| 766 } | |
| 767 mo += f; | |
| 768 } | |
| 769 settings.mo = mo; | |
| 770 } | |
| 703 | 771 // user interface options |
| 716 | 772 storeOptions(data); |
| 702 | 773 }; |
| 681 | 774 |
| 716 | 775 var storeOptions = function (data) { |
| 694 | 776 // save digilib options in cookie |
| 702 | 777 var settings = data.settings; |
| 778 if (data.dlOpts) { | |
| 779 // save digilib settings in options | |
| 780 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
| 781 data.dlOpts.buttons = settings.visibleButtonSets; | |
| 782 var clop = ''; | |
| 783 for (var o in data.dlOpts) { | |
| 784 if (clop) { | |
| 785 clop += '&'; | |
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786 } |
| 702 | 787 clop += o + '=' + data.dlOpts[o]; |
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788 } |
| 702 | 789 if (jQuery.cookie) { |
| 790 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 791 console.debug("set cookie=", ck, " value=", clop); | |
| 792 jQuery.cookie(ck, clop); | |
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793 } |
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794 } |
| 720 | 795 if (settings.interactionMode !== 'fullscreen' && jQuery.cookie) { |
| 796 // store normal parameters in cookie for embedded mode | |
| 797 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
| 798 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 799 console.debug("set cookie=", ck, " value=", qs); | |
| 800 jQuery.cookie(ck, qs); | |
| 801 } | |
| 624 | 802 }; |
| 648 | 803 |
| 716 | 804 var retrieveOptions = function (data) { |
| 702 | 805 // clop (digilib options) |
| 806 var opts = {}; | |
| 807 var settings = data.settings; | |
| 808 if (jQuery.cookie) { | |
| 809 // read from cookie | |
| 810 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 811 var cp = jQuery.cookie(ck); | |
| 812 console.debug("get cookie=", ck, " value=", cp); | |
| 813 // in query string format | |
| 814 opts = parseQueryString(cp); | |
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815 } |
| 702 | 816 data.dlOpts = opts; |
| 817 // birdview option | |
| 818 if (opts.birdview != null) { | |
| 819 settings.isBirdDivVisible = opts.birdview === '1'; | |
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820 } |
| 702 | 821 // visible button sets |
| 822 if (opts.buttons != null) { | |
| 823 settings.visibleButtonSets = opts.buttons; | |
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824 } |
| 704 | 825 }; |
| 702 | 826 |
| 615 | 827 // (re)load the img from a new scaler URL |
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828 var redisplay = function (data) { |
| 629 | 829 var settings = data.settings; |
| 830 if (settings.interactionMode === 'fullscreen') { | |
| 831 // update location.href (browser URL) in fullscreen mode | |
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832 var url = getDigilibUrl(data); |
| 629 | 833 var history = window.history; |
| 834 if (typeof(history.pushState) === 'function') { | |
| 835 console.debug("we could modify history, but we don't..."); | |
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836 } |
| 629 | 837 window.location = url; |
| 838 } else { | |
| 839 // embedded mode -- just change img src | |
| 840 var url = getScalerUrl(data); | |
| 841 data.$img.attr('src', url); | |
| 719 | 842 // redisplay bird img |
| 843 updateBirdDiv(data); | |
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844 } |
| 615 | 845 }; |
| 846 | |
| 655 | 847 // returns maximum size for scaler img in fullscreen mode |
| 848 var getFullscreenImgSize = function($elem) { | |
| 849 var $win = $(window); | |
| 850 var winH = $win.height(); | |
| 851 var winW = $win.width(); | |
| 852 // TODO: account for borders? | |
| 853 return geom.size(winW, winH); | |
| 854 }; | |
| 855 | |
| 601 | 856 // creates HTML structure for digilib in elem |
| 620 | 857 var setupScalerDiv = function (data) { |
| 858 var settings = data.settings; | |
| 640 | 859 var $elem = data.$elem; |
| 718 | 860 $elem.addClass('digilib'); |
| 721 | 861 var $img; |
| 862 var scalerUrl; | |
| 601 | 863 if (settings.interactionMode === 'fullscreen') { |
| 721 | 864 // fullscreen |
| 718 | 865 $elem.addClass('dl_fullscreen'); |
| 602 | 866 var imgSize = getFullscreenImgSize($elem); |
| 643 | 867 // fitwidth/height omits destination height/width |
| 721 | 868 if (data.dlOpts.fitheight == null) { |
| 643 | 869 settings.dw = imgSize.width; |
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870 } |
| 721 | 871 if (data.dlOpts.fitwidth == null) { |
| 643 | 872 settings.dh = imgSize.height; |
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873 } |
| 679 | 874 scalerUrl = getScalerUrl(data); |
| 721 | 875 $img = $('<img/>'); |
| 602 | 876 } else { |
| 721 | 877 // embedded mode -- try to keep img tag |
| 718 | 878 $elem.addClass('dl_embedded'); |
| 721 | 879 scalerUrl = getScalerUrl(data); |
| 616 | 880 $img = $elem.find('img'); |
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881 if ($img.length > 0) { |
| 721 | 882 oldUrl = $img.attr('src'); |
| 883 if (oldUrl === scalerUrl) { | |
| 884 console.debug("img detach:", $img); | |
| 885 $img.detach(); | |
| 886 } else { | |
| 887 $img = $('<img/>'); | |
| 888 } | |
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889 } else { |
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890 $img = $('<img/>'); |
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891 } |
| 601 | 892 } |
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893 // create new html |
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894 $elem.empty(); // TODO: should we keep stuff for customization? |
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895 var $scaler = $('<div class="scaler"/>'); |
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896 $elem.append($scaler); |
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897 $scaler.append($img); |
| 615 | 898 $img.addClass('pic'); |
| 642 | 899 data.$scaler = $scaler; |
| 629 | 900 data.$img = $img; |
| 680 | 901 // setup image load handler before setting the src attribute (IE bug) |
| 902 $img.load(scalerImgLoadedHandler(data)); | |
| 903 $img.attr('src', scalerUrl); | |
| 601 | 904 }; |
| 608 | 905 |
| 603 | 906 // creates HTML structure for buttons in elem |
| 690 | 907 var createButtons = function (data, buttonSetIdx) { |
| 640 | 908 var $elem = data.$elem; |
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909 var settings = data.settings; |
| 658 | 910 var mode = settings.interactionMode; |
|
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911 var buttonSettings = settings.buttonSettings[mode]; |
| 675 | 912 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
| 683 | 913 if (buttonGroup == null) { |
| 914 // no buttons here | |
| 915 return; | |
| 916 } | |
| 917 var $buttonsDiv = $('<div class="buttons"/>'); | |
| 675 | 918 var buttonNames = buttonSettings[buttonGroup]; |
| 919 for (var i = 0; i < buttonNames.length; i++) { | |
| 920 var buttonName = buttonNames[i]; | |
| 921 var buttonConfig = settings.buttons[buttonName]; | |
| 658 | 922 // construct the button html |
| 923 var $button = $('<div class="button"></div>'); | |
| 924 var $a = $('<a/>'); | |
| 925 var $img = $('<img class="button"/>'); | |
| 926 $buttonsDiv.append($button); | |
| 927 $button.append($a); | |
| 928 $a.append($img); | |
| 929 // add attributes and bindings | |
| 930 $button.attr('title', buttonConfig.tooltip); | |
| 675 | 931 $button.addClass('button-' + buttonName); |
| 658 | 932 // create handler for the buttons |
| 933 $a.bind('click.digilib', (function () { | |
| 934 // we create a new closure to capture the value of action | |
| 935 var action = buttonConfig.onclick; | |
| 936 if ($.isArray(action)) { | |
| 937 // the handler function calls digilib with action and parameters | |
| 938 return function (evt) { | |
| 939 console.debug('click action=', action, ' evt=', evt); | |
| 940 $elem.digilib.apply($elem, action); | |
| 941 return false; | |
| 942 }; | |
| 943 } else { | |
| 944 // the handler function calls digilib with action | |
| 945 return function (evt) { | |
| 946 console.debug('click action=', action, ' evt=', evt); | |
| 947 $elem.digilib(action); | |
| 948 return false; | |
| 949 }; | |
| 950 } | |
| 951 })()); | |
| 952 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
| 683 | 953 } |
| 655 | 954 // make buttons div scroll if too large for window |
| 955 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 956 $buttonsDiv.css('position', 'absolute'); | |
| 957 } | |
| 690 | 958 // buttons hidden at first |
| 959 $buttonsDiv.hide(); | |
| 960 $elem.append($buttonsDiv); | |
| 675 | 961 if (data.$buttonSets == null) { |
| 690 | 962 // first button set |
| 675 | 963 data.$buttonSets = [$buttonsDiv]; |
| 964 } else { | |
| 683 | 965 $elem.append($buttonsDiv); |
| 675 | 966 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
| 967 } | |
| 605 | 968 return $buttonsDiv; |
| 603 | 969 }; |
| 608 | 970 |
| 971 // creates HTML structure for the bird's eye view in elem | |
| 631 | 972 var setupBirdDiv = function (data) { |
| 640 | 973 var $elem = data.$elem; |
| 608 | 974 // the bird's eye div |
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975 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 608 | 976 // the detail indicator frame |
| 719 | 977 var $birdZoom = $('<div class="birdzoom" style="display:none; background-color:transparent;"/>'); |
| 608 | 978 // the small image |
| 979 var $birdImg = $('<img class="birdimg"/>'); | |
| 716 | 980 data.$birdDiv = $birdDiv; |
| 981 data.$birdZoom = $birdZoom; | |
| 982 data.$birdImg = $birdImg; | |
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983 $elem.append($birdDiv); |
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984 $birdDiv.append($birdZoom); |
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985 $birdDiv.append($birdImg); |
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986 $birdZoom.css(data.settings.birdIndicatorStyle); |
| 716 | 987 var birdUrl = getBirdImgUrl(data); |
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988 $birdImg.load(birdImgLoadedHandler(data)); |
| 716 | 989 $birdImg.attr('src', birdUrl); |
| 990 }; | |
| 991 | |
| 992 // update bird's eye view | |
| 993 var updateBirdDiv = function (data) { | |
| 994 if (!data.settings.isBirdDivVisible) return; | |
| 995 var $birdImg = data.$birdImg; | |
| 996 var oldsrc = $birdImg.attr('src'); | |
| 997 var newsrc = getBirdImgUrl(data); | |
| 998 if (oldsrc !== newsrc) { | |
| 999 $birdImg.attr('src', newsrc); | |
| 1000 // onload handler re-renders | |
| 1001 } else { | |
| 1002 // re-render | |
| 1003 renderBirdArea(data); | |
| 723 | 1004 // enable click and drag |
|
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1005 setupBirdDrag(data); |
| 716 | 1006 } |
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1007 }; |
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1008 |
| 618 | 1009 // creates HTML structure for the about view in elem |
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1010 var setupAboutDiv = function (data) { |
| 640 | 1011 var $elem = data.$elem; |
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1012 var settings = data.settings; |
| 618 | 1013 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 609 | 1014 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 1015 var $link = $('<a/>'); | |
| 1016 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 1017 var $content = $('<p/>'); | |
| 1018 $elem.append($aboutDiv); | |
| 1019 $aboutDiv.append($header); | |
| 1020 $aboutDiv.append($link); | |
| 1021 $aboutDiv.append($content); | |
| 1022 $link.append($logo); | |
| 1023 $logo.attr('src', settings.logoUrl); | |
| 628 | 1024 $link.attr('href', settings.homeUrl); |
| 609 | 1025 $content.text('Version: ' + settings.version); |
| 628 | 1026 // click hides |
| 642 | 1027 $aboutDiv.bind('click.digilib', function () { |
| 639 | 1028 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 642 | 1029 return false; |
| 703 | 1030 }); |
| 628 | 1031 data.$aboutDiv = $aboutDiv; |
| 627 | 1032 }; |
| 1033 | |
| 628 | 1034 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 1035 var showDiv = function (isVisible, $div, show) { | |
| 638 | 1036 if (show == null) { |
| 628 | 1037 // toggle visibility |
| 1038 isVisible = !isVisible; | |
| 1039 } else { | |
| 1040 // set visibility | |
| 1041 isVisible = show; | |
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1042 } |
| 628 | 1043 if (isVisible) { |
| 1044 $div.fadeIn(); | |
| 1045 } else { | |
| 1046 $div.fadeOut(); | |
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1047 } |
| 628 | 1048 return isVisible; |
| 627 | 1049 }; |
| 609 | 1050 |
| 690 | 1051 // display more (or less) button sets |
| 1052 var showButtons = function (data, more, setIdx, animated) { | |
| 704 | 1053 var atime = animated ? 'fast': 0; |
| 690 | 1054 if (more) { |
| 1055 // add set | |
| 1056 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 1057 var $set; | |
| 1058 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
| 1059 // set exists | |
| 1060 $set = data.$buttonSets[setIdx]; | |
| 1061 } else { | |
| 1062 $set = createButtons(data, setIdx); | |
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1063 } |
| 690 | 1064 if ($set == null) return false; |
| 1065 var btnWidth = $set.width(); | |
| 1066 // move remaining sets left and show new set | |
| 704 | 1067 if ($otherSets.length > 0) { |
| 1068 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
| 1069 function () {$set.show();}); | |
| 690 | 1070 } else { |
| 1071 $set.show(); | |
| 704 | 1072 } |
| 690 | 1073 } else { |
| 1074 // remove set | |
| 1075 var $set = data.$buttonSets[setIdx]; | |
| 1076 if ($set == null) return false; | |
| 1077 var btnWidth = $set.width(); | |
| 1078 // hide last set | |
| 1079 $set.hide(); | |
| 1080 // take remaining sets and move right | |
| 1081 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 704 | 1082 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
| 1083 } | |
| 690 | 1084 return true; |
| 1085 }; | |
| 1086 | |
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1087 // create Transform from area and $img |
| 668 | 1088 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
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1089 var picrect = geom.rectangle($img); |
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1090 var trafo = geom.transform(); |
| 668 | 1091 // move zoom area offset to center |
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1092 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 668 | 1093 // scale zoom area size to [1,1] |
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1094 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 668 | 1095 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 1096 if (rot || hmir || vmir) { | |
| 1097 // move [0.5,0.5] to center | |
| 1098 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 1099 if (hmir) { | |
| 1100 // mirror about center | |
| 1101 trafo.concat(trafo.getMirror('y')); | |
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1102 } |
| 668 | 1103 if (vmir) { |
| 1104 // mirror about center | |
| 1105 trafo.concat(trafo.getMirror('x')); | |
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1106 } |
| 668 | 1107 if (rot) { |
| 1108 // rotate around center | |
| 1109 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
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1110 } |
| 668 | 1111 // move back |
| 1112 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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1113 } |
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1114 // scale to screen position and size |
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1115 trafo.concat(trafo.getScale(picrect)); |
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1116 trafo.concat(trafo.getTranslation(picrect)); |
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1117 return trafo; |
| 648 | 1118 }; |
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1119 |
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1120 // returns function for load event of scaler img |
| 629 | 1121 var scalerImgLoadedHandler = function (data) { |
| 626 | 1122 return function () { |
| 716 | 1123 var $img = $(this); |
| 731 | 1124 var $scaler = data.$scaler; |
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1125 // create Transform from current zoomArea and image size |
| 668 | 1126 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
| 1127 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
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1128 // console.debug("imgTrafo=", data.imgTrafo); |
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1129 var imgRect = geom.rectangle($img); |
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1130 // console.debug("imgrect=", imgRect); |
| 726 | 1131 // adjust scaler div size |
| 731 | 1132 imgRect.adjustDiv($scaler); |
| 708 | 1133 // show image in case it was hidden (for example in zoomDrag) |
| 726 | 1134 $img.css('visibility', 'visible'); |
| 734 | 1135 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
| 620 | 1136 // display marks |
| 626 | 1137 renderMarks(data); |
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1138 // enable drag-to-scroll |
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1139 setupZoomDrag(data); |
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1140 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation |
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1141 }; |
|
2d85d820501d
split bird's view code in two more parts, analog to scaler-img code.
robcast
parents:
649
diff
changeset
|
1142 }; |
|
2d85d820501d
split bird's view code in two more parts, analog to scaler-img code.
robcast
parents:
649
diff
changeset
|
1143 |
|
2d85d820501d
split bird's view code in two more parts, analog to scaler-img code.
robcast
parents:
649
diff
changeset
|
1144 // returns function for load event of bird's eye view img |
|
2d85d820501d
split bird's view code in two more parts, analog to scaler-img code.
robcast
parents:
649
diff
changeset
|
1145 var birdImgLoadedHandler = function (data) { |
|
2d85d820501d
split bird's view code in two more parts, analog to scaler-img code.
robcast
parents:
649
diff
changeset
|
1146 return function () { |
| 748 | 1147 var $birdImg = $(this); |
| 1148 var birdRect = geom.rectangle($birdImg); | |
| 1149 console.debug("birdImg loaded!", $birdImg, "rect=", birdRect, "data=", data); | |
| 1150 if (birdRect.width === 0) { | |
| 1151 // malheureusement IE7 calls load handler when there is no size info yet | |
| 1152 setTimeout(function () { $birdImg.triggerHandler('load') }, 200); | |
| 1153 } | |
| 661 | 1154 // display red indicator around zoomarea |
| 716 | 1155 renderBirdArea(data); |
| 1156 // enable click and drag | |
|
725
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1157 setupBirdDrag(data); |
|
606
d08d095430c3
keeping img tag for embedded mode seems to work now
robcast
parents:
605
diff
changeset
|
1158 }; |
|
d08d095430c3
keeping img tag for embedded mode seems to work now
robcast
parents:
605
diff
changeset
|
1159 }; |
| 626 | 1160 |
| 1161 // place marks on the image | |
| 1162 var renderMarks = function (data) { | |
| 640 | 1163 var $elem = data.$elem; |
| 636 | 1164 var marks = data.marks; |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1165 // clear marks |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1166 $elem.find('div.mark').remove(); |
| 626 | 1167 for (var i = 0; i < marks.length; i++) { |
| 1168 var mark = marks[i]; | |
| 636 | 1169 if (data.zoomArea.containsPosition(mark)) { |
| 626 | 1170 var mpos = data.imgTrafo.transform(mark); |
|
657
b0c6cc4a0932
work on getting transformation to work with rotation (currently still doesn't)
robcast
parents:
656
diff
changeset
|
1171 console.debug("renderMarks: mpos=",mpos); |
| 626 | 1172 // create mark |
| 1173 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 1174 var $mark = $(html); | |
| 1175 $elem.append($mark); | |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1176 mpos.adjustDiv($mark); |
|
706
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1177 } |
|
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1178 } |
| 626 | 1179 }; |
| 648 | 1180 |
|
670
2ce9d77677b1
took renderBirdArea hooks out of scalerImgLoaded into redisplay.
robcast
parents:
669
diff
changeset
|
1181 // show zoom area indicator on bird's eye view |
| 716 | 1182 var renderBirdArea = function (data) { |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1183 var $birdZoom = data.$birdZoom; |
| 652 | 1184 var zoomArea = data.zoomArea; |
| 716 | 1185 var normalSize = isFullArea(zoomArea); |
| 1186 if (normalSize) { | |
| 1187 $birdZoom.hide(); | |
| 1188 return; | |
| 1189 } else { | |
| 1190 $birdZoom.show(); | |
| 1191 } | |
| 748 | 1192 // create Transform from current area and picsize |
|
728
53584f90f66b
improved some embedded buttons; fixed reset function
hertzhaft
parents:
726
diff
changeset
|
1193 data.birdTrafo = getImgTrafo(data.$birdImg, FULL_AREA); |
| 731 | 1194 var zoomRect = data.birdTrafo.transform(zoomArea); |
| 748 | 1195 console.debug("renderBirdArea:", zoomRect, "zoomArea:", zoomArea, "$birdTrafo:", data.birdTrafo); |
| 734 | 1196 // acount for border width |
| 1197 zoomRect.addPosition({x : -2, y : -2}); | |
|
663
fda2d9bd9ba7
birdview: nice animation for embedded mode, none for fullscreen
hertzhaft
parents:
662
diff
changeset
|
1198 if (data.settings.interactionMode === 'fullscreen') { |
|
fda2d9bd9ba7
birdview: nice animation for embedded mode, none for fullscreen
hertzhaft
parents:
662
diff
changeset
|
1199 // no animation for fullscreen |
| 731 | 1200 zoomRect.adjustDiv($birdZoom); |
| 716 | 1201 } else { |
| 1202 // nice animation for embedded mode :-) | |
| 734 | 1203 // correct offsetParent because animate doesn't use offset |
| 719 | 1204 var ppos = $birdZoom.offsetParent().offset(); |
| 731 | 1205 var dest = { |
| 748 | 1206 left : (zoomRect.x - ppos.left) + 'px', |
| 1207 top : (zoomRect.y - ppos.top) + 'px', | |
| 1208 width : zoomRect.width, | |
| 1209 height : zoomRect.height | |
| 1210 }; | |
| 731 | 1211 $birdZoom.animate(dest); |
| 716 | 1212 } |
|
657
b0c6cc4a0932
work on getting transformation to work with rotation (currently still doesn't)
robcast
parents:
656
diff
changeset
|
1213 }; |
| 652 | 1214 |
| 640 | 1215 // zooms by the given factor |
| 636 | 1216 var zoomBy = function(data, factor) { |
| 1217 var area = data.zoomArea; | |
| 1218 var newarea = area.copy(); | |
| 1219 // scale | |
| 1220 newarea.width /= factor; | |
| 1221 newarea.height /= factor; | |
| 1222 // and recenter | |
| 1223 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 1224 newarea.y -= 0.5 * (newarea.height - area.height); | |
|
728
53584f90f66b
improved some embedded buttons; fixed reset function
hertzhaft
parents:
726
diff
changeset
|
1225 newarea = FULL_AREA.fit(newarea); |
| 636 | 1226 data.zoomArea = newarea; |
|
637
71cc855e2e4b
reload doesn't take list of changed parameters any more
robcast
parents:
636
diff
changeset
|
1227 redisplay(data); |
| 636 | 1228 }; |
| 1229 | |
| 640 | 1230 // add a mark where clicked |
| 1231 var setMark = function (data) { | |
| 642 | 1232 var $scaler = data.$scaler; |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1233 // unbind other handler |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1234 $scaler.unbind(".dlZoomDrag"); |
| 640 | 1235 // start event capturing |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1236 $scaler.one('mousedown.dlSetMark', function (evt) { |
| 640 | 1237 // event handler adding a new mark |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1238 console.log("setmark at=", evt); |
|
665
0d3d9517e448
image transform works now under rotation!!! (at least for multiples of 90deg)
robcast
parents:
664
diff
changeset
|
1239 var mpos = geom.position(evt); |
| 640 | 1240 var pos = data.imgTrafo.invtransform(mpos); |
| 1241 data.marks.push(pos); | |
| 1242 redisplay(data); | |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1243 return false; |
| 640 | 1244 }); |
| 1245 }; | |
| 661 | 1246 |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1247 // zoom to the area around two clicked points |
| 647 | 1248 var zoomArea = function(data) { |
| 1249 $elem = data.$elem; | |
| 1250 $scaler = data.$scaler; | |
| 1251 var pt1, pt2; | |
| 1252 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 1253 $elem.append($zoomDiv); | |
| 661 | 1254 $zoomDiv.css(data.settings.zoomrectStyle); |
| 647 | 1255 var picRect = geom.rectangle($scaler); |
| 1256 // FIX ME: is there a way to query the border width from CSS info? | |
| 1257 // rect.x -= 2; // account for overlay borders | |
| 1258 // rect.y -= 2; | |
| 1259 | |
| 1260 var zoomStart = function (evt) { | |
| 1261 pt1 = geom.position(evt); | |
| 1262 // setup and show zoom div | |
| 731 | 1263 pt1.adjustDiv($zoomDiv); |
| 661 | 1264 $zoomDiv.width(0).height(0); |
| 647 | 1265 $zoomDiv.show(); |
| 1266 // register events | |
| 731 | 1267 $elem.bind("mousemove.dlZoomArea", zoomMove); |
| 1268 $elem.bind("mouseup.dlZoomArea", zoomEnd); | |
| 647 | 1269 return false; |
| 1270 }; | |
| 661 | 1271 |
| 734 | 1272 // mouse move handler |
| 1273 var zoomMove = function (evt) { | |
| 1274 pt2 = geom.position(evt); | |
| 1275 var rect = geom.rectangle(pt1, pt2); | |
| 1276 rect.clipTo(picRect); | |
| 1277 // update zoom div | |
| 1278 rect.adjustDiv($zoomDiv); | |
| 1279 return false; | |
| 1280 }; | |
|
738
bd283b2cdbbc
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
737
diff
changeset
|
1281 |
| 647 | 1282 // mouseup handler: end moving |
| 1283 var zoomEnd = function (evt) { | |
| 1284 pt2 = geom.position(evt); | |
| 1285 // assume a click and continue if the area is too small | |
| 1286 var clickRect = geom.rectangle(pt1, pt2); | |
| 703 | 1287 if (clickRect.getArea() <= 5) return false; |
| 647 | 1288 // hide zoom div |
| 1289 $zoomDiv.remove(); | |
| 1290 // unregister events | |
| 731 | 1291 $elem.unbind("mousemove.dlZoomArea", zoomMove); |
| 1292 $elem.unbind("mouseup.dlZoomArea", zoomEnd); | |
| 647 | 1293 // clip and transform |
| 1294 clickRect.clipTo(picRect); | |
| 1295 var area = data.imgTrafo.invtransform(clickRect); | |
| 1296 data.zoomArea = area; | |
| 1297 // zoomed is always fit | |
| 1298 data.settings.ws = 1; | |
| 731 | 1299 delete data.dlOpts.fitwidth; |
| 1300 delete data.dlOpts.fitheight; | |
| 647 | 1301 redisplay(data); |
| 1302 return false; | |
| 1303 }; | |
| 661 | 1304 |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1305 // clear old handler (also ZoomDrag) |
| 731 | 1306 $scaler.unbind('.dlZoomArea'); |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1307 $scaler.unbind(".dlZoomDrag"); |
| 731 | 1308 $elem.unbind('.dlZoomArea'); |
| 647 | 1309 // bind start zoom handler |
| 731 | 1310 $scaler.one('mousedown.dlZoomArea', zoomStart); |
| 647 | 1311 }; |
| 640 | 1312 |
| 716 | 1313 // 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
|
1314 var setupBirdDrag = function(data) { |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1315 var $birdImg = data.$birdImg; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1316 var $birdZoom = data.$birdZoom; |
| 723 | 1317 var $document = $(document); |
|
744
78ed5b49259d
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
741
diff
changeset
|
1318 var $scaler = data.$scaler; |
|
78ed5b49259d
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
741
diff
changeset
|
1319 var startPos, newRect, birdImgRect, birdZoomRect, fullRect, scalerPos; |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1320 |
| 734 | 1321 // mousedown handler: start dragging bird zoom to a new position |
| 1322 var birdZoomStartDrag = function(evt) { | |
| 1323 startPos = geom.position(evt); | |
| 1324 // position may have changed | |
| 1325 data.birdTrafo = getImgTrafo($birdImg, FULL_AREA); | |
| 1326 birdImgRect = geom.rectangle($birdImg); | |
| 1327 birdZoomRect = geom.rectangle($birdZoom); | |
|
744
78ed5b49259d
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
741
diff
changeset
|
1328 scalerPos = geom.position($scaler); |
| 734 | 1329 newRect = null; |
|
739
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1330 fullRect = setZoomBG(data); // setup zoom background image |
| 734 | 1331 $document.bind("mousemove.dlBirdMove", birdZoomMove); |
| 1332 $document.bind("mouseup.dlBirdMove", birdZoomEndDrag); | |
| 1333 return false; | |
| 1334 }; | |
| 1335 | |
| 726 | 1336 // mousemove handler: drag |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1337 var birdZoomMove = function(evt) { |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1338 var pos = geom.position(evt); |
| 723 | 1339 var delta = startPos.delta(pos); |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1340 // move birdZoom div, keeping size |
| 723 | 1341 newRect = birdZoomRect.copy(); |
| 726 | 1342 newRect.addPosition(delta); |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1343 newRect.stayInside(birdImgRect); |
|
739
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1344 // reflect birdview zoom position in scaler image |
|
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1345 var area = data.birdTrafo.invtransform(newRect); |
|
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1346 var imgArea = data.imgTrafo.transform(area); |
|
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1347 var offset = imgArea.getPosition().neg(); |
|
744
78ed5b49259d
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
741
diff
changeset
|
1348 offset.add(scalerPos); |
|
739
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1349 if (fullRect) { |
|
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1350 var bgPos = fullRect.getPosition().add(offset); |
|
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1351 } else { |
|
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1352 var bgPos = offset; |
|
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1353 } |
|
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1354 // move the background image to the new position |
|
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1355 data.$scaler.css({ |
|
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1356 'background-position' : bgPos.x + "px " + bgPos.y + "px" |
|
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1357 }); |
|
744
78ed5b49259d
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
741
diff
changeset
|
1358 // acount for border width |
|
78ed5b49259d
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
741
diff
changeset
|
1359 newRect.addPosition({x : -2, y : -2}); |
|
78ed5b49259d
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
741
diff
changeset
|
1360 newRect.adjustDiv($birdZoom); |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1361 return false; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1362 }; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1363 |
| 726 | 1364 // mouseup handler: reload page |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1365 var birdZoomEndDrag = function(evt) { |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1366 var settings = data.settings; |
| 723 | 1367 $document.unbind("mousemove.dlBirdMove", birdZoomMove); |
| 1368 $document.unbind("mouseup.dlBirdMove", birdZoomEndDrag); | |
| 1369 if (newRect == null) { | |
| 1370 // no movement happened - set center to click position | |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1371 startPos = birdZoomRect.getCenter(); |
| 723 | 1372 birdZoomMove(evt); |
|
706
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1373 } |
|
740
462adc0eefc9
smoother birdZoom indicator movement; fixed bug in jQuery.offset()
hertzhaft
parents:
739
diff
changeset
|
1374 // ugly, but needed to prevent double border width compensation |
|
462adc0eefc9
smoother birdZoom indicator movement; fixed bug in jQuery.offset()
hertzhaft
parents:
739
diff
changeset
|
1375 newRect.addPosition({x : +2, y : +2}); |
| 723 | 1376 var newArea = data.birdTrafo.invtransform(newRect); |
| 1377 data.zoomArea = newArea; | |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1378 redisplay(data); |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1379 return false; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1380 }; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1381 |
| 723 | 1382 // clear old handler |
| 1383 $document.unbind(".dlBirdMove"); | |
| 1384 $birdImg.unbind(".dlBirdMove"); | |
| 1385 $birdZoom.unbind(".dlBirdMove"); | |
|
725
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1386 if (! isFullArea(data.zoomArea)) { |
|
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1387 // set new handler |
|
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1388 $birdImg.bind("mousedown.dlBirdMove", birdZoomStartDrag); |
|
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1389 $birdZoom.bind("mousedown.dlBirdMove", birdZoomStartDrag); |
|
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1390 } |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1391 }; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1392 |
|
739
58fcf8d8649f
move zoom-drag background along with birdview indicator
hertzhaft
parents:
738
diff
changeset
|
1393 // move bird zoom indicator to reflect zoomed detail area |
|
738
bd283b2cdbbc
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
737
diff
changeset
|
1394 var setBirdZoom = function(data, rect) { |
|
bd283b2cdbbc
move birdview zoom indicator along with zoom drag
hertzhaft
parents:
737
diff
changeset
|
1395 var part = data.imgTrafo.invtransform(rect); |
|
740
462adc0eefc9
smoother birdZoom indicator movement; fixed bug in jQuery.offset()
hertzhaft
parents:
739
diff
changeset
|
1396 // area = FULL_AREA.fit(part); // no, we want to see where we transcend the borders |
|
738
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changeset
|
1397 birdTrafo = getImgTrafo(data.$birdImg, FULL_AREA); |
|
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changeset
|
1398 var birdRect = birdTrafo.transform(part); |
|
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|
1399 // acount for border width |
|
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|
1400 birdRect.addPosition({x : -2, y : -2}); |
|
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changeset
|
1401 birdRect.adjustDiv(data.$birdZoom); |
|
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|
1402 }; |
|
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|
1403 |
|
739
58fcf8d8649f
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diff
changeset
|
1404 // set zoom background |
|
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diff
changeset
|
1405 var setZoomBG = function(data) { |
|
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changeset
|
1406 var $scaler = data.$scaler; |
|
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|
1407 var $img = data.$img; |
|
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|
1408 var fullRect = null; |
|
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|
1409 // hide the scaler img, show background of div instead |
|
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changeset
|
1410 $img.css('visibility', 'hidden'); |
|
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|
1411 var scalerCss = { |
|
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|
1412 'background-image' : 'url(' + $img.attr('src') + ')', |
|
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changeset
|
1413 'background-repeat' : 'no-repeat', |
|
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|
1414 'background-position' : 'left top', |
|
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|
1415 'opacity' : '0.5', |
|
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|
1416 'cursor' : 'move' |
|
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|
1417 }; |
|
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changeset
|
1418 if (data.hasBgSize) { |
|
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changeset
|
1419 // full-size background using CSS3-background-size |
|
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changeset
|
1420 fullRect = data.imgTrafo.transform(FULL_AREA); |
|
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|
1421 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) { |
|
58fcf8d8649f
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changeset
|
1422 // correct offset because background is relative |
|
744
78ed5b49259d
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
hertzhaft
parents:
741
diff
changeset
|
1423 var scalerPos = geom.position($scaler); |
|
78ed5b49259d
zoom-drag background follows birdZoom also in embedded mode (still imprecise)
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changeset
|
1424 fullRect.addPosition(scalerPos.neg()); |
|
739
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changeset
|
1425 var url = getBirdImgUrl(data, ['rot', 'mo']); |
|
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diff
changeset
|
1426 scalerCss['background-image'] = 'url(' + url + ')'; |
|
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diff
changeset
|
1427 scalerCss[data.bgSizeName] = fullRect.width + 'px ' + fullRect.height + 'px'; |
|
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diff
changeset
|
1428 scalerCss['background-position'] = fullRect.x + 'px '+ fullRect.y + 'px'; |
|
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changeset
|
1429 } else { |
|
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changeset
|
1430 // too big |
|
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|
1431 fullRect = null; |
|
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|
1432 } |
|
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|
1433 } |
|
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changeset
|
1434 $scaler.css(scalerCss); |
|
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changeset
|
1435 // isBgReady = true; |
|
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|
1436 return fullRect; |
|
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|
1437 }; |
|
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|
1438 |
| 731 | 1439 // setup handlers for dragging the zoomed image |
| 698 | 1440 var setupZoomDrag = function(data) { |
|
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|
1441 var startPos, delta, fullRect; |
| 726 | 1442 var $document = $(document); |
| 698 | 1443 var $elem = data.$elem; |
| 1444 var $scaler = data.$scaler; | |
| 1445 var $img = data.$img; | |
| 703 | 1446 |
| 726 | 1447 // drag the image and load a new detail on mouse up |
| 698 | 1448 var dragStart = function (evt) { |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1449 console.debug("dragstart at=",evt); |
|
730
98a405711289
setup zoomdrag even when image is not initially zoomed
hertzhaft
parents:
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diff
changeset
|
1450 // don't start dragging if not zoomed |
|
98a405711289
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changeset
|
1451 if (isFullArea(data.zoomArea)) return false; |
| 726 | 1452 startPos = geom.position(evt); |
| 734 | 1453 delta = null; |
|
739
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changeset
|
1454 // set low res background immediately on mousedown |
|
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|
1455 fullRect = setZoomBG(data); |
| 726 | 1456 $document.bind("mousemove.dlZoomDrag", dragMove); |
| 1457 $document.bind("mouseup.dlZoomDrag", dragEnd); | |
|
706
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parents:
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diff
changeset
|
1458 return false; |
| 698 | 1459 }; |
|
738
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diff
changeset
|
1460 |
| 726 | 1461 // mousemove handler: drag zoomed image |
| 698 | 1462 var dragMove = function (evt) { |
| 1463 var pos = geom.position(evt); | |
| 734 | 1464 delta = startPos.delta(pos); |
| 1465 if (fullRect) { | |
| 1466 var bgPos = fullRect.getPosition().add(delta); | |
| 1467 } else { | |
| 1468 var bgPos = delta; | |
| 1469 } | |
| 698 | 1470 // move the background image to the new position |
| 708 | 1471 $scaler.css({ |
| 734 | 1472 'background-position' : bgPos.x + "px " + bgPos.y + "px" |
| 698 | 1473 }); |
|
739
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diff
changeset
|
1474 // set birdview indicator to reflect new zoom position |
|
738
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diff
changeset
|
1475 var za = geom.rectangle($img); |
|
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changeset
|
1476 za.addPosition(delta.neg()); |
|
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diff
changeset
|
1477 setBirdZoom(data, za); |
| 698 | 1478 return false; |
| 1479 }; | |
| 703 | 1480 |
| 726 | 1481 // mouseup handler: reload zoomed image in new position |
| 698 | 1482 var dragEnd = function (evt) { |
| 732 | 1483 $scaler.css('cursor', 'auto'); |
| 726 | 1484 $document.unbind("mousemove.dlZoomDrag", dragMove); |
| 1485 $document.unbind("mouseup.dlZoomDrag", dragEnd); | |
| 1486 if (delta == null || delta.distance() < 2) { | |
| 1487 // no movement | |
| 1488 $img.css('visibility', 'visible'); | |
| 734 | 1489 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
| 726 | 1490 return false; |
| 1491 } | |
| 1492 // get old zoom area (screen coordinates) | |
| 734 | 1493 var za = geom.rectangle($img); |
| 726 | 1494 // move |
| 734 | 1495 za.addPosition(delta.neg()); |
| 726 | 1496 // transform back |
| 1497 var newArea = data.imgTrafo.invtransform(za); | |
|
728
53584f90f66b
improved some embedded buttons; fixed reset function
hertzhaft
parents:
726
diff
changeset
|
1498 data.zoomArea = FULL_AREA.fit(newArea); |
|
701
2660b733a1e7
img reload works for fullscreen, but somehow not precise
hertzhaft
parents:
700
diff
changeset
|
1499 redisplay(data); |
| 698 | 1500 return false; |
| 1501 }; | |
|
728
53584f90f66b
improved some embedded buttons; fixed reset function
hertzhaft
parents:
726
diff
changeset
|
1502 |
| 726 | 1503 // clear old handler |
| 1504 $document.unbind(".dlZoomDrag"); | |
| 734 | 1505 $scaler.unbind(".dlZoomDrag"); |
|
735
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1506 if (! isFullArea(data.zoomArea)) { |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1507 // set handler |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1508 $scaler.bind("mousedown.dlZoomDrag", dragStart); |
|
9969e01b37cf
fixed problem with setmark, zoomarea and zoomDrag handlers.
robcast
parents:
734
diff
changeset
|
1509 } |
| 698 | 1510 }; |
| 1511 | |
| 696 | 1512 // get image quality as a number (0..2) |
| 1513 var getQuality = function (data) { | |
| 1514 var flags = data.scalerFlags; | |
| 1515 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
| 1516 return parseInt(q[1], 10); | |
| 699 | 1517 }; |
| 696 | 1518 |
| 1519 // set image quality as a number (0..2) | |
| 1520 var setQuality = function (data, qual) { | |
| 1521 var flags = data.scalerFlags; | |
| 1522 // clear flags | |
| 1523 for (var i = 0; i < 3; ++i) { | |
| 1524 delete flags['q'+i]; | |
|
706
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1525 } |
| 696 | 1526 flags['q'+qual] = 'q'+qual; |
| 699 | 1527 }; |
| 703 | 1528 |
| 643 | 1529 // sets a key to a value (relative values with +/- if relative=true) |
| 1530 var setNumValue = function(settings, key, value) { | |
| 709 | 1531 if (value == null) return null; |
|
706
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parents:
704
diff
changeset
|
1532 if (isNumber(value)) { |
|
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
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diff
changeset
|
1533 settings[key] = value; |
|
498f9c7487ae
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diff
changeset
|
1534 return value; |
|
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robcast
parents:
704
diff
changeset
|
1535 } |
|
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704
diff
changeset
|
1536 var sign = value[0]; |
| 643 | 1537 if (sign === '+' || sign === '-') { |
| 1538 if (settings[key] == null) { | |
|
644
bffc7d8c3641
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
643
diff
changeset
|
1539 // this isn't perfect but still... |
| 643 | 1540 settings[key] = 0; |
|
706
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1541 } |
| 643 | 1542 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
| 1543 } else { | |
| 1544 settings[key] = value; | |
|
706
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1545 } |
| 643 | 1546 return settings[key]; |
| 1547 }; | |
| 648 | 1548 |
| 1549 // auxiliary function (from old dllib.js) | |
|
725
96dc93ff4d68
really renamed birdMoveArea, really merged fix for no zoom area.
robcast
parents:
724
diff
changeset
|
1550 var isFullArea = function(area) { |
| 652 | 1551 return (area.width === 1.0) && (area.height === 1.0); |
| 648 | 1552 }; |
| 1553 | |
| 634 | 1554 // auxiliary function (from Douglas Crockford, A.10) |
| 1555 var isNumber = function isNumber(value) { | |
| 703 | 1556 return typeof value === 'number' && isFinite(value); |
| 634 | 1557 }; |
| 648 | 1558 |
| 624 | 1559 // auxiliary function to crop senseless precision |
| 1560 var cropFloat = function (x) { | |
| 630 | 1561 return parseInt(10000 * x, 10) / 10000; |
| 624 | 1562 }; |
| 648 | 1563 |
| 685 | 1564 // fallback for console.log calls |
| 1565 if (customConsole) { | |
| 1566 var logFunction = function(type) { | |
| 1567 return function(){ | |
| 1568 var $debug = $('#debug'); // debug div | |
| 1569 if (!$debug) return; | |
| 1570 var args = Array.prototype.slice.call(arguments); | |
| 1571 var argtext = args.join(' '); | |
| 1572 var $logDiv = $('<div/>'); | |
| 1573 $logDiv.addClass(type); | |
| 1574 $logDiv.text(argtext); | |
| 1575 $debug.append($logDiv); | |
| 1576 }; | |
| 1577 }; | |
| 1578 console.log = logFunction('_log'); | |
| 1579 console.debug = logFunction('_debug'); | |
| 1580 console.error = logFunction('_error'); | |
|
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diff
changeset
|
1581 } |
| 685 | 1582 |
| 598 | 1583 // hook plugin into jquery |
|
753
8452a485e0e7
primitive plugin extension mechanism - unsure how useful this is
hertzhaft
parents:
748
diff
changeset
|
1584 $.fn.digilib = function(action, obj) { |
|
8452a485e0e7
primitive plugin extension mechanism - unsure how useful this is
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diff
changeset
|
1585 // plugin extension mechanism |
|
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primitive plugin extension mechanism - unsure how useful this is
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748
diff
changeset
|
1586 if (action === 'extendPlugin') { |
|
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primitive plugin extension mechanism - unsure how useful this is
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748
diff
changeset
|
1587 // for each digilib $elem extend data.settings with obj.options |
|
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748
diff
changeset
|
1588 if (obj.options) { |
|
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748
diff
changeset
|
1589 this.each(function() { |
|
8452a485e0e7
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parents:
748
diff
changeset
|
1590 var $elem = $(this); |
|
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748
diff
changeset
|
1591 // console.debug('extending:', $elem); |
|
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primitive plugin extension mechanism - unsure how useful this is
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diff
changeset
|
1592 var data = $elem.data('digilib'); |
|
8452a485e0e7
primitive plugin extension mechanism - unsure how useful this is
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748
diff
changeset
|
1593 if (!data) { |
|
8452a485e0e7
primitive plugin extension mechanism - unsure how useful this is
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748
diff
changeset
|
1594 return console.log('cannot extend digilib plugin, element not initialised!'); |
|
8452a485e0e7
primitive plugin extension mechanism - unsure how useful this is
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parents:
748
diff
changeset
|
1595 } |
|
8452a485e0e7
primitive plugin extension mechanism - unsure how useful this is
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748
diff
changeset
|
1596 var settings = data.settings; |
|
8452a485e0e7
primitive plugin extension mechanism - unsure how useful this is
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parents:
748
diff
changeset
|
1597 $.extend(settings, obj.options); |
|
8452a485e0e7
primitive plugin extension mechanism - unsure how useful this is
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748
diff
changeset
|
1598 // console.log('settings:', settings); |
|
8452a485e0e7
primitive plugin extension mechanism - unsure how useful this is
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748
diff
changeset
|
1599 }); |
|
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primitive plugin extension mechanism - unsure how useful this is
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diff
changeset
|
1600 } |
|
8452a485e0e7
primitive plugin extension mechanism - unsure how useful this is
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748
diff
changeset
|
1601 delete(obj.options); |
|
8452a485e0e7
primitive plugin extension mechanism - unsure how useful this is
hertzhaft
parents:
748
diff
changeset
|
1602 // extend the plugin actions (to make this useful, |
|
8452a485e0e7
primitive plugin extension mechanism - unsure how useful this is
hertzhaft
parents:
748
diff
changeset
|
1603 // maybe we need to expose some more internal functions) |
|
8452a485e0e7
primitive plugin extension mechanism - unsure how useful this is
hertzhaft
parents:
748
diff
changeset
|
1604 $.extend(actions, obj); |
|
8452a485e0e7
primitive plugin extension mechanism - unsure how useful this is
hertzhaft
parents:
748
diff
changeset
|
1605 } else if (actions[action]) { |
|
644
bffc7d8c3641
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
643
diff
changeset
|
1606 // call action on this with the remaining arguments (inserting data as first argument) |
|
bffc7d8c3641
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
643
diff
changeset
|
1607 var $elem = $(this); |
|
bffc7d8c3641
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
643
diff
changeset
|
1608 var data = $elem.data('digilib'); |
|
bffc7d8c3641
renamed 'actions' to 'buttons' and 'methods' to 'actions'
robcast
parents:
643
diff
changeset
|
1609 var args = Array.prototype.slice.call(arguments, 1); |
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1610 args.unshift(data); |
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bffc7d8c3641
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1611 return actions[action].apply(this, args); |
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bffc7d8c3641
renamed 'actions' to 'buttons' and 'methods' to 'actions'
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1612 } else if (typeof(action) === 'object' || !action) { |
| 627 | 1613 // call init on this |
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1614 return actions.init.apply(this, arguments); |
| 598 | 1615 } else { |
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498f9c7487ae
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1616 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
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498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
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1617 } |
| 598 | 1618 }; |
| 685 | 1619 |
| 597 | 1620 })(jQuery); |