Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 708:fc54b455f7f8 jquery
getting rid of bg div in zoomDrag
| author | hertzhaft |
|---|---|
| date | Sun, 30 Jan 2011 18:32:40 +0100 |
| parents | 5bf8958edb9b |
| children | 661c13bfdcde |
| 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 : { | |
| 80 onclick : "javascript:gotoPageWin()", | |
| 81 tooltip : "specify image", | |
| 82 img : "page.png" | |
| 83 }, | |
| 84 bird : { | |
| 628 | 85 onclick : "showBirdDiv", |
| 603 | 86 tooltip : "show bird's eye view", |
| 87 img : "birds-eye.png" | |
| 88 }, | |
| 89 help : { | |
| 628 | 90 onclick : "showAboutDiv", |
| 603 | 91 tooltip : "about Digilib", |
| 92 img : "help.png" | |
| 93 }, | |
| 94 reset : { | |
| 681 | 95 onclick : "reset", |
| 603 | 96 tooltip : "reset image", |
| 97 img : "reset.png" | |
| 98 }, | |
| 99 mark : { | |
| 640 | 100 onclick : "setMark", |
| 603 | 101 tooltip : "set a mark", |
| 102 img : "mark.png" | |
| 103 }, | |
| 104 delmark : { | |
| 643 | 105 onclick : "removeMark", |
| 603 | 106 tooltip : "delete the last mark", |
| 107 img : "delmark.png" | |
| 108 }, | |
| 109 hmir : { | |
| 654 | 110 onclick : ["mirror", "h"], |
| 603 | 111 tooltip : "mirror horizontally", |
| 112 img : "mirror-horizontal.png" | |
| 113 }, | |
| 114 vmir : { | |
| 654 | 115 onclick : ["mirror", "v"], |
| 603 | 116 tooltip : "mirror vertically", |
| 117 img : "mirror-vertical.png" | |
| 118 }, | |
| 119 rot : { | |
| 656 | 120 onclick : "rotate", |
| 603 | 121 tooltip : "rotate image", |
| 122 img : "rotate.png" | |
| 123 }, | |
| 124 brgt : { | |
| 656 | 125 onclick : "brightness", |
| 603 | 126 tooltip : "set brightness", |
| 127 img : "brightness.png" | |
| 128 }, | |
| 129 cont : { | |
| 656 | 130 onclick : "contrast", |
| 603 | 131 tooltip : "set contrast", |
| 132 img : "contrast.png" | |
| 133 }, | |
| 134 rgb : { | |
| 135 onclick : "javascript:setParamWin('rgb', '...')", | |
| 136 tooltip : "set rgb values", | |
| 137 img : "rgb.png" | |
| 138 }, | |
| 139 quality : { | |
| 696 | 140 onclick : "setquality", |
| 603 | 141 tooltip : "set image quality", |
| 142 img : "quality.png" | |
| 143 }, | |
| 144 size : { | |
| 145 onclick : "javascript:toggleSizeMenu()", | |
| 146 tooltip : "set page size", | |
| 147 img : "size.png" | |
| 148 }, | |
| 149 calibrationx : { | |
| 150 onclick : "javascript:calibrate('x')", | |
| 151 tooltip : "calibrate screen x-ratio", | |
| 152 img : "calibration-x.png" | |
| 153 }, | |
| 154 scale : { | |
| 155 onclick : "javascript:toggleScaleMenu()", | |
| 156 tooltip : "change image scale", | |
| 157 img : "original-size.png" | |
| 158 }, | |
| 692 | 159 toggleoptions : { |
| 160 onclick : "morebuttons", | |
| 161 tooltip : "more options", | |
| 162 img : "options.png" | |
| 163 }, | |
| 683 | 164 moreoptions : { |
| 165 onclick : ["morebuttons", "+1"], | |
| 166 tooltip : "more options", | |
| 167 img : "options.png" | |
| 168 }, | |
| 169 lessoptions : { | |
| 170 onclick : ["morebuttons", "-1"], | |
| 171 tooltip : "less options", | |
| 603 | 172 img : "options.png" |
| 173 }, | |
| 174 SEP : { | |
| 175 img : "sep.png" | |
| 176 } | |
| 177 }; | |
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178 |
| 598 | 179 var defaults = { |
| 609 | 180 // version of this script |
| 628 | 181 'version' : 'jquery.digilib.js 0.9', |
| 609 | 182 // logo url |
| 183 'logoUrl' : '../img/digilib-logo-text1.png', | |
| 628 | 184 // homepage url (behind logo) |
| 185 'homeUrl' : 'http://digilib.berlios.de', | |
| 603 | 186 // base URL to Scaler servlet |
| 645 | 187 'scalerBaseUrl' : null, |
| 603 | 188 // list of Scaler parameters |
| 620 | 189 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
| 190 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
| 191 // Scaler parameter defaults | |
| 636 | 192 'pn' : 1, |
| 620 | 193 'ww' : 1.0, |
| 194 'wh' : 1.0, | |
| 195 'wx' : 0.0, | |
| 196 'wy' : 0.0, | |
| 197 'ws' : 1.0, | |
| 636 | 198 'mo' : '', |
| 199 'rot' : 0, | |
| 200 'cont' : 0, | |
| 201 'brgt' : 0, | |
| 202 'rgbm' : '0/0/0', | |
| 203 'rgba' : '0/0/0', | |
| 204 'ddpi' : null, | |
| 205 'ddpix' : null, | |
| 206 'ddpiy' : null, | |
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207 // list of digilib parameters |
| 643 | 208 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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209 // digilib parameter defaults |
| 636 | 210 'mk' : '', |
| 643 | 211 'clop' : '', |
| 636 | 212 // mode of operation: |
| 213 // fullscreen = take parameters from page URL, keep state in page URL | |
| 214 // embedded = take parameters from Javascript options, keep state inside object | |
| 603 | 215 'interactionMode' : 'fullscreen', |
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216 // buttons |
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217 'buttons' : buttons, |
| 661 | 218 // defaults for digilib buttons |
| 658 | 219 'buttonSettings' : { |
| 220 'fullscreen' : { | |
| 661 | 221 // path to button images (must end with a slash) |
| 658 | 222 'imagePath' : 'img/fullscreen/', |
| 692 | 223 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","toggleoptions"], |
| 224 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","toggleoptions"], | |
| 675 | 225 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 226 }, |
| 227 'embedded' : { | |
| 228 'imagePath' : 'img/embedded/16/', | |
| 692 | 229 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","back","fwd","page","bird","SEP","help","reset","toggleoptions"], |
| 230 'specialSet' : ["hmir","vmir","rot","brgt","cont","rgb","quality","size","SEP","toggleoptions"], | |
| 675 | 231 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 232 } |
| 690 | 233 }, |
| 234 // number of visible button groups | |
| 235 'visibleButtonSets' : 1, | |
| 609 | 236 // is birdView shown? |
| 237 'isBirdDivVisible' : false, | |
| 661 | 238 // dimensions of bird's eye div |
| 667 | 239 'birdDivWidth' : 200, |
| 240 'birdDivHeight' : 200, | |
| 661 | 241 // style of the zoom area indicator in the bird's eye div |
| 652 | 242 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
| 661 | 243 // style of zoom area "rubber band" |
| 244 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
| 609 | 245 // is the "about" window shown? |
| 246 'isAboutDivVisible' : false | |
| 247 | |
| 603 | 248 }; |
| 648 | 249 |
| 601 | 250 // affine geometry classes |
| 251 var geom = dlGeometry(); | |
| 648 | 252 |
| 636 | 253 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
| 648 | 254 |
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255 var actions = { |
| 661 | 256 // init: digilib initialization |
| 257 init : function(options) { | |
| 258 // settings for this digilib instance are merged from defaults and options | |
| 259 var settings = $.extend({}, defaults, options); | |
| 260 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
| 261 var queryParams = {}; | |
| 262 if (isFullscreen) { | |
| 263 queryParams = parseQueryParams(); | |
| 264 // check scalerBaseUrl | |
| 265 if (settings.scalerBaseUrl == null) { | |
| 266 // try the host this came from | |
| 267 var h = window.location.host; | |
| 268 if (window.location.host) { | |
| 269 var url = window.location.href; | |
| 270 // assume the page lives in [webapp]/jquery/ | |
| 271 var pos = url.indexOf('jquery/'); | |
| 272 if (pos > 0) { | |
| 273 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
| 645 | 274 } |
| 275 } | |
| 629 | 276 } |
| 661 | 277 } |
| 278 return this.each(function() { | |
| 279 var $elem = $(this); | |
| 280 var data = $elem.data('digilib'); | |
| 681 | 281 var params, elemSettings; |
| 661 | 282 // if the plugin hasn't been initialized yet |
| 283 if (!data) { | |
| 284 // merge query parameters | |
| 285 if (isFullscreen) { | |
| 681 | 286 params = queryParams; |
| 661 | 287 } else { |
| 681 | 288 params = parseImgParams($elem); |
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289 } |
| 661 | 290 // store $(this) element in the settings |
| 681 | 291 elemSettings = $.extend({}, settings, params); |
| 690 | 292 data = { |
| 661 | 293 $elem : $elem, |
| 294 settings : elemSettings, | |
| 681 | 295 queryParams : params |
| 661 | 296 }; |
| 297 // store in data element | |
| 298 $elem.data('digilib', data); | |
| 299 } | |
| 300 unpackParams(data); | |
| 675 | 301 // create HTML structure for scaler |
| 661 | 302 setupScalerDiv(data); |
| 690 | 303 // add buttons |
| 304 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { | |
| 305 showButtons(data, true, i); | |
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306 } |
| 661 | 307 // bird's eye view creation |
| 703 | 308 if (elemSettings.isBirdDivVisible) { |
| 631 | 309 setupBirdDiv(data); |
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310 } |
| 661 | 311 // about window creation - TODO: could be deferred? restrict to only one item? |
| 312 setupAboutDiv(data); | |
| 703 | 313 // TODO: the actual moving code |
| 700 | 314 setupZoomDrag(data); |
| 661 | 315 }); |
| 316 }, | |
| 317 | |
| 318 // destroy: clean up digilib | |
| 319 destroy : function(data) { | |
| 320 return this.each(function(){ | |
| 321 var $elem = $(this); | |
| 322 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
| 323 data.digilib.remove(); | |
| 324 $elem.removeData('digilib'); | |
| 325 }); | |
| 326 }, | |
| 327 | |
| 328 // show or hide the 'about' window | |
| 329 showAboutDiv : function(data, show) { | |
| 330 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
| 331 }, | |
| 648 | 332 |
| 661 | 333 // event handler: toggles the visibility of the bird's eye window |
| 334 showBirdDiv : function (data, show) { | |
| 335 if (data.$birdDiv == null) { | |
| 336 // no bird div -> create | |
| 337 setupBirdDiv(data); | |
| 338 } | |
| 339 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
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340 data.$birdImg.triggerHandler('load'); |
| 661 | 341 }, |
| 342 | |
| 343 // goto given page nr (+/-: relative) | |
| 344 gotoPage : function (data, pageNr) { | |
| 345 var settings = data.settings; | |
| 346 var oldpn = settings.pn; | |
| 347 var pn = setNumValue(settings, "pn", pageNr); | |
| 348 if (pn == null) return false; // nothing happened | |
| 349 if (pn < 1) { | |
| 350 alert("no such page (page number too low)"); | |
| 351 settings.pn = oldpn; | |
| 352 return false; | |
| 353 } | |
| 354 if (settings.pt) { | |
| 355 if (pn > settings.pt) { | |
| 356 alert("no such page (page number too high)"); | |
| 616 | 357 settings.pn = oldpn; |
| 358 return false; | |
| 627 | 359 } |
| 661 | 360 } |
| 361 // reset mk and others(?) | |
| 362 data.marks = []; | |
| 363 data.zoomArea = MAX_ZOOMAREA; | |
| 364 // then reload | |
| 365 redisplay(data); | |
| 366 }, | |
| 647 | 367 |
| 661 | 368 // zoom by a given factor |
| 369 zoomBy : function (data, factor) { | |
| 370 zoomBy(data, factor); | |
| 371 }, | |
| 640 | 372 |
| 661 | 373 // zoom interactively |
| 374 zoomArea : function (data) { | |
| 375 zoomArea(data); | |
| 376 }, | |
| 643 | 377 |
| 661 | 378 // zoom out to full page |
| 379 zoomFull : function (data, mode) { | |
| 380 data.zoomArea = MAX_ZOOMAREA; | |
| 381 if (mode === 'width') { | |
| 382 data.dlOpts.fitwidth = 1; | |
| 383 delete data.dlOpts.fitheight; | |
| 384 } else if (mode === 'height') { | |
| 385 data.dlOpts.fitheight = 1; | |
| 386 delete data.dlOpts.fitwidth; | |
| 387 } else { | |
| 388 delete data.dlOpts.fitwidth; | |
| 389 delete data.dlOpts.fitheight; | |
| 390 } | |
| 391 redisplay(data); | |
| 392 }, | |
| 393 | |
| 394 // set a mark by clicking (or giving a position) | |
| 395 setMark : function (data, mpos) { | |
| 396 if (mpos == null) { | |
| 397 // interactive | |
| 398 setMark(data); | |
| 399 } else { | |
| 400 // use position | |
| 401 data.marks.push(pos); | |
| 656 | 402 redisplay(data); |
| 597 | 403 } |
| 661 | 404 }, |
| 405 | |
| 406 // remove the last mark | |
| 407 removeMark : function (data) { | |
| 408 data.marks.pop(); | |
| 409 redisplay(data); | |
| 410 }, | |
| 411 | |
| 412 // mirror the image | |
| 413 mirror : function (data, mode) { | |
| 414 var flags = data.scalerFlags; | |
| 415 if (mode === 'h') { | |
| 416 if (flags.hmir) { | |
| 417 delete flags.hmir; | |
| 418 } else { | |
| 419 flags.hmir = 1; | |
| 420 } | |
| 421 } else { | |
| 422 if (flags.vmir) { | |
| 423 delete flags.vmir; | |
| 424 } else { | |
| 425 flags.vmir = 1; | |
| 426 } | |
| 427 } | |
| 428 redisplay(data); | |
| 429 }, | |
| 643 | 430 |
| 661 | 431 // rotate the image |
| 432 rotate : function (data, angle) { | |
| 433 var rot = data.settings.rot; | |
| 434 if (angle == null) { | |
| 435 angle = window.prompt("Rotation angle:", rot); | |
| 436 } | |
| 437 data.settings.rot = angle; | |
| 438 redisplay(data); | |
| 439 }, | |
| 440 | |
| 441 // change brightness | |
| 442 brightness : function (data, factor) { | |
| 443 var brgt = data.settings.brgt; | |
| 444 if (factor == null) { | |
| 445 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 446 } | |
| 447 data.settings.brgt = factor; | |
| 448 redisplay(data); | |
| 449 }, | |
| 450 | |
| 451 // change contrast | |
| 452 contrast : function (data, factor) { | |
| 453 var cont = data.settings.cont; | |
| 454 if (factor == null) { | |
| 455 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 456 } | |
| 457 data.settings.cont = factor; | |
| 458 redisplay(data); | |
| 681 | 459 }, |
| 703 | 460 |
| 683 | 461 // display more (or less) button sets |
| 462 morebuttons : function (data, more) { | |
| 689 | 463 var settings = data.settings; |
| 692 | 464 if (more == null) { |
| 696 | 465 // toggle more or less (only works for 2 sets) |
| 692 | 466 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
| 467 if (settings.visibleButtonSets >= maxbtns) { | |
| 468 more = '-1'; | |
| 469 } else { | |
| 470 more = '+1'; | |
| 471 } | |
| 472 } | |
| 683 | 473 if (more === '-1') { |
| 474 // remove set | |
| 690 | 475 var setIdx = settings.visibleButtonSets - 1; |
| 476 if (showButtons(data, false, setIdx, true)) { | |
| 477 settings.visibleButtonSets--; | |
| 478 } | |
| 683 | 479 } else { |
| 480 // add set | |
| 690 | 481 var setIdx = settings.visibleButtonSets; |
| 482 if (showButtons(data, true, setIdx, true)) { | |
| 483 settings.visibleButtonSets++; | |
| 683 | 484 } |
| 485 } | |
| 684 | 486 }, |
| 681 | 487 |
| 696 | 488 // reset image parameters to defaults |
| 681 | 489 reset : function (data) { |
| 490 var settings = data.settings; | |
| 491 var paramNames = settings.digilibParamNames; | |
| 492 var params = data.queryParams; | |
| 702 | 493 // resets zoomArea, marks, scalerflags |
| 681 | 494 resetData(data); |
| 495 // delete all digilib parameters | |
| 496 for (var i = 0; i < paramNames.length; i++) { | |
| 497 var paramName = paramNames[i]; | |
| 498 delete settings[paramName]; | |
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499 } |
| 681 | 500 // fullscreen: restore only fn/pn parameters |
| 501 if (settings.interactionMode === 'fullscreen') { | |
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502 settings.fn = params.fn || ''; // no default defined |
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503 settings.pn = params.pn || defaults.pn; |
| 681 | 504 // embedded: restore original parameters |
| 505 } else { | |
| 506 $.extend(settings, params); | |
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507 } |
| 702 | 508 // TODO: should we really reset all user preferences here? |
| 509 settings.isBirdDivVisible = false; | |
| 510 settings.visibleButtonSets = 1; | |
| 705 | 511 delete data.dlOpts.fitwidth; |
| 512 delete data.dlOpts.fitheight; | |
| 681 | 513 redisplay(data); |
| 682 | 514 }, |
| 515 | |
| 696 | 516 // presents a reference url (returns value if noprompt) |
| 517 reference : function (data, noprompt) { | |
| 682 | 518 var settings = data.settings; |
| 519 var url; | |
| 520 if (settings.interactionMode === 'fullscreen') { | |
| 521 url = getDigilibUrl(data); | |
| 522 } else { | |
| 523 url = getScalerUrl(data); | |
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524 } |
| 696 | 525 if (noprompt == null) { |
| 526 window.prompt("URL reference to the current view", url); | |
| 527 } | |
| 528 return url; | |
| 529 }, | |
| 703 | 530 |
| 696 | 531 // set image quality |
| 532 setquality : function (data, qual) { | |
| 533 var oldq = getQuality(data); | |
| 534 if (qual == null) { | |
| 535 qual = window.prompt("Image quality (0..2)", oldq); | |
| 536 } | |
| 537 qual = parseInt(qual, 10); | |
| 538 if (qual >= 0 && qual <= 2) { | |
| 539 setQuality(data, qual); | |
| 540 redisplay(data); | |
| 541 } | |
| 661 | 542 } |
| 598 | 543 }; |
| 597 | 544 |
| 601 | 545 // returns parameters from page url |
| 600 | 546 var parseQueryParams = function() { |
| 629 | 547 return parseQueryString(window.location.search.slice(1)); |
| 548 }; | |
| 648 | 549 |
| 629 | 550 // returns parameters from embedded img-element |
| 600 | 551 var parseImgParams = function($elem) { |
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552 var src = $elem.find('img').first().attr('src'); |
| 703 | 553 if (!src) return null; |
| 600 | 554 var pos = src.indexOf('?'); |
| 555 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 556 var scalerUrl = src.substring(0, pos); | |
| 620 | 557 var params = parseQueryString(query); |
| 558 params.scalerBaseUrl = scalerUrl; | |
| 559 return params; | |
| 629 | 560 }; |
| 600 | 561 |
| 601 | 562 // parses query parameter string into parameter object |
| 600 | 563 var parseQueryString = function(query) { |
| 694 | 564 var params = {}; |
| 565 if (query == null) return params; | |
| 600 | 566 var pairs = query.split("&"); |
| 629 | 567 //var keys = []; |
| 600 | 568 for (var i = 0; i < pairs.length; i++) { |
| 569 var pair = pairs[i].split("="); | |
| 570 if (pair.length === 2) { | |
| 620 | 571 params[pair[0]] = pair[1]; |
| 629 | 572 //keys.push(pair[0]); |
| 627 | 573 } |
| 629 | 574 } |
| 620 | 575 return params; |
| 629 | 576 }; |
| 661 | 577 |
| 636 | 578 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 579 var getParamString = function (settings, keys, defaults) { | |
| 608 | 580 var paramString = ''; |
| 643 | 581 var nx = false; |
| 608 | 582 for (i = 0; i < keys.length; ++i) { |
| 583 var key = keys[i]; | |
| 656 | 584 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 608 | 585 // first param gets no '&' |
| 643 | 586 if (nx) { |
| 587 paramString += '&'; | |
| 588 } else { | |
| 589 nx = true; | |
| 590 } | |
| 608 | 591 // add parm=val |
| 592 paramString += key + '=' + settings[key]; | |
| 636 | 593 } |
| 608 | 594 } |
| 595 return paramString; | |
| 624 | 596 }; |
| 597 | |
| 629 | 598 // returns URL and query string for Scaler |
| 599 var getScalerUrl = function (data) { | |
| 646 | 600 var settings = data.settings; |
| 645 | 601 if (settings.scalerBaseUrl == null) { |
| 602 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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603 } |
| 658 | 604 packParams(data); |
| 629 | 605 var keys = settings.scalerParamNames; |
| 636 | 606 var queryString = getParamString(settings, keys, defaults); |
| 629 | 607 var url = settings.scalerBaseUrl + '?' + queryString; |
| 608 return url; | |
| 609 }; | |
| 610 | |
| 611 // returns URL and query string for current digilib | |
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612 var getDigilibUrl = function (data) { |
| 636 | 613 packParams(data); |
| 629 | 614 var settings = data.settings; |
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615 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 629 | 616 var url = window.location.toString(); |
| 617 var pos = url.indexOf('?'); | |
| 618 var baseUrl = url.substring(0, pos); | |
| 619 var newurl = baseUrl + '?' + queryString; | |
| 620 return newurl; | |
| 621 }; | |
| 622 | |
| 648 | 623 // processes some parameters into objects and stuff |
| 624 | 624 var unpackParams = function (data) { |
| 625 var settings = data.settings; | |
| 629 | 626 // zoom area |
| 624 | 627 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 636 | 628 data.zoomArea = zoomArea; |
| 629 | 629 // marks |
| 624 | 630 var marks = []; |
| 643 | 631 if (settings.mk) { |
| 632 var mk = settings.mk; | |
| 633 if (mk.indexOf(";") >= 0) { | |
| 634 var pa = mk.split(";"); // old format with ";" | |
| 635 } else { | |
| 636 var pa = mk.split(","); // new format | |
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637 } |
| 643 | 638 for (var i = 0; i < pa.length ; i++) { |
| 639 var pos = pa[i].split("/"); | |
| 640 if (pos.length > 1) { | |
| 641 marks.push(geom.position(pos[0], pos[1])); | |
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642 } |
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643 } |
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644 } |
| 636 | 645 data.marks = marks; |
| 643 | 646 // mo (Scaler flags) |
| 647 var flags = {}; | |
| 648 if (settings.mo) { | |
| 649 var pa = settings.mo.split(","); | |
| 650 for (var i = 0; i < pa.length ; i++) { | |
| 651 flags[pa[i]] = pa[i]; | |
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652 } |
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653 } |
| 643 | 654 data.scalerFlags = flags; |
| 702 | 655 retrieveOptionsCookie(data); |
| 648 | 656 }; |
| 657 | |
| 624 | 658 // put objects back into parameters |
| 659 var packParams = function (data) { | |
| 660 var settings = data.settings; | |
| 629 | 661 // zoom area |
| 636 | 662 if (data.zoomArea) { |
| 640 | 663 settings.wx = cropFloat(data.zoomArea.x); |
| 664 settings.wy = cropFloat(data.zoomArea.y); | |
| 665 settings.ww = cropFloat(data.zoomArea.width); | |
| 666 settings.wh = cropFloat(data.zoomArea.height); | |
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667 } |
| 629 | 668 // marks |
| 636 | 669 if (data.marks) { |
| 643 | 670 settings.mk = ''; |
| 636 | 671 for (var i = 0; i < data.marks.length; i++) { |
| 643 | 672 if (i) { |
| 673 settings.mk += ','; | |
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674 } |
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675 settings.mk += cropFloat(data.marks[i].x).toString() + |
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676 '/' + cropFloat(data.marks[i].y).toString(); |
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677 } |
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678 } |
| 643 | 679 // Scaler flags |
| 680 if (data.scalerFlags) { | |
| 681 var mo = ''; | |
| 682 for (var f in data.scalerFlags) { | |
| 683 if (mo) { | |
| 684 mo += ','; | |
| 685 } | |
| 686 mo += f; | |
| 687 } | |
| 688 settings.mo = mo; | |
| 689 } | |
| 703 | 690 // user interface options |
| 702 | 691 storeOptionsCookie(data); |
| 692 }; | |
| 681 | 693 |
| 702 | 694 var storeOptionsCookie = function (data) { |
| 694 | 695 // save digilib options in cookie |
| 702 | 696 // TODO: in embedded mode this is not called |
| 694 | 697 /* store in parameter clop |
| 698 * if (data.dlOpts) { | |
| 699 var clop = ''; | |
| 700 for (var o in data.dlOpts) { | |
| 701 if (clop) { | |
| 643 | 702 clop += ','; |
| 703 } | |
| 704 clop += o; | |
| 705 } | |
| 706 settings.clop = clop; | |
| 694 | 707 } */ |
| 702 | 708 var settings = data.settings; |
| 709 if (data.dlOpts) { | |
| 710 // save digilib settings in options | |
| 711 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
| 712 data.dlOpts.buttons = settings.visibleButtonSets; | |
| 713 var clop = ''; | |
| 714 for (var o in data.dlOpts) { | |
| 715 if (clop) { | |
| 716 clop += '&'; | |
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717 } |
| 702 | 718 clop += o + '=' + data.dlOpts[o]; |
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719 } |
| 702 | 720 if (jQuery.cookie) { |
| 721 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 722 console.debug("set cookie=", ck, " value=", clop); | |
| 723 jQuery.cookie(ck, clop); | |
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724 } |
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725 } |
| 624 | 726 }; |
| 648 | 727 |
| 702 | 728 var retrieveOptionsCookie = function (data) { |
| 729 // clop (digilib options) | |
| 730 var opts = {}; | |
| 731 var settings = data.settings; | |
| 732 if (jQuery.cookie) { | |
| 733 /* read from parameter clop | |
| 734 * if (settings.clop) { | |
| 735 var pa = settings.clop.split(","); | |
| 736 for (var i = 0; i < pa.length ; i++) { | |
| 737 opts[pa[i]] = pa[i]; | |
| 738 } | |
| 739 } */ | |
| 740 // read from cookie | |
| 741 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 742 var cp = jQuery.cookie(ck); | |
| 743 console.debug("get cookie=", ck, " value=", cp); | |
| 744 // in query string format | |
| 745 opts = parseQueryString(cp); | |
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746 } |
| 702 | 747 data.dlOpts = opts; |
| 748 // birdview option | |
| 749 if (opts.birdview != null) { | |
| 750 settings.isBirdDivVisible = opts.birdview === '1'; | |
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751 } |
| 702 | 752 // visible button sets |
| 753 if (opts.buttons != null) { | |
| 754 settings.visibleButtonSets = opts.buttons; | |
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755 } |
| 704 | 756 }; |
| 702 | 757 |
| 681 | 758 // clear digilib data for reset |
| 759 var resetData = function (data) { | |
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760 // TODO: we should reset instead of delete |
| 681 | 761 if (data.zoomArea) delete data.zoomArea; |
| 762 if (data.marks) delete data.marks; | |
| 763 if (data.scalerFlags) delete data.scalerFlags; | |
| 764 }; | |
| 765 | |
| 615 | 766 // (re)load the img from a new scaler URL |
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767 var redisplay = function (data) { |
| 629 | 768 var settings = data.settings; |
| 769 if (settings.interactionMode === 'fullscreen') { | |
| 770 // update location.href (browser URL) in fullscreen mode | |
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771 var url = getDigilibUrl(data); |
| 629 | 772 var history = window.history; |
| 773 if (typeof(history.pushState) === 'function') { | |
| 774 console.debug("we could modify history, but we don't..."); | |
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775 } |
| 629 | 776 window.location = url; |
| 777 } else { | |
| 778 // embedded mode -- just change img src | |
| 779 var url = getScalerUrl(data); | |
| 780 data.$img.attr('src', url); | |
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781 } |
| 615 | 782 }; |
| 783 | |
| 655 | 784 // returns maximum size for scaler img in fullscreen mode |
| 785 var getFullscreenImgSize = function($elem) { | |
| 786 var $win = $(window); | |
| 787 var winH = $win.height(); | |
| 788 var winW = $win.width(); | |
| 789 // TODO: account for borders? | |
| 790 return geom.size(winW, winH); | |
| 791 }; | |
| 792 | |
| 601 | 793 // creates HTML structure for digilib in elem |
| 620 | 794 var setupScalerDiv = function (data) { |
| 795 var settings = data.settings; | |
| 640 | 796 var $elem = data.$elem; |
| 679 | 797 var $img, scalerUrl; |
| 798 // fullscreen | |
| 601 | 799 if (settings.interactionMode === 'fullscreen') { |
| 602 | 800 var imgSize = getFullscreenImgSize($elem); |
| 643 | 801 // fitwidth/height omits destination height/width |
| 708 | 802 // if (data.dlOpts['fitheight'] !== '1') { |
| 803 if (data.dlOpts['fitheight'] == null) { | |
| 643 | 804 settings.dw = imgSize.width; |
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805 } |
| 708 | 806 // if (data.dlOpts['fitwidth'] !== '1') { |
| 807 if (data.dlOpts['fitwidth'] == null) { | |
| 643 | 808 settings.dh = imgSize.height; |
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809 } |
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810 $img = $('<img/>'); |
| 679 | 811 scalerUrl = getScalerUrl(data); |
| 812 // embedded mode -- try to keep img tag | |
| 602 | 813 } else { |
| 616 | 814 $img = $elem.find('img'); |
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815 if ($img.length > 0) { |
| 679 | 816 console.debug("img detach:", $img); |
| 817 scalerUrl = $img.attr('src'); | |
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818 $img.detach(); |
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819 } else { |
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820 $img = $('<img/>'); |
| 679 | 821 scalerUrl = getScalerUrl(data); |
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822 } |
| 601 | 823 } |
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824 // create new html |
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825 $elem.empty(); // TODO: should we keep stuff for customization? |
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826 var $scaler = $('<div class="scaler"/>'); |
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827 $elem.append($scaler); |
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828 $scaler.append($img); |
| 615 | 829 $img.addClass('pic'); |
| 642 | 830 data.$scaler = $scaler; |
| 629 | 831 data.$img = $img; |
| 680 | 832 // setup image load handler before setting the src attribute (IE bug) |
| 833 $img.load(scalerImgLoadedHandler(data)); | |
| 834 $img.attr('src', scalerUrl); | |
| 708 | 835 // set scaler div size explicitly in case $img is hidden (for zoomDrag) |
| 836 $imgRect = geom.rectangle($img); | |
| 837 $imgRect.adjustDiv(data.$scaler); | |
| 601 | 838 }; |
| 608 | 839 |
| 603 | 840 // creates HTML structure for buttons in elem |
| 690 | 841 var createButtons = function (data, buttonSetIdx) { |
| 640 | 842 var $elem = data.$elem; |
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843 var settings = data.settings; |
| 658 | 844 var mode = settings.interactionMode; |
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845 var buttonSettings = settings.buttonSettings[mode]; |
| 675 | 846 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
| 683 | 847 if (buttonGroup == null) { |
| 848 // no buttons here | |
| 849 return; | |
| 850 } | |
| 851 var $buttonsDiv = $('<div class="buttons"/>'); | |
| 675 | 852 var buttonNames = buttonSettings[buttonGroup]; |
| 853 for (var i = 0; i < buttonNames.length; i++) { | |
| 854 var buttonName = buttonNames[i]; | |
| 855 var buttonConfig = settings.buttons[buttonName]; | |
| 658 | 856 // construct the button html |
| 857 var $button = $('<div class="button"></div>'); | |
| 858 var $a = $('<a/>'); | |
| 859 var $img = $('<img class="button"/>'); | |
| 860 $buttonsDiv.append($button); | |
| 861 $button.append($a); | |
| 862 $a.append($img); | |
| 863 // add attributes and bindings | |
| 864 $button.attr('title', buttonConfig.tooltip); | |
| 675 | 865 $button.addClass('button-' + buttonName); |
| 658 | 866 // create handler for the buttons |
| 867 $a.bind('click.digilib', (function () { | |
| 868 // we create a new closure to capture the value of action | |
| 869 var action = buttonConfig.onclick; | |
| 870 if ($.isArray(action)) { | |
| 871 // the handler function calls digilib with action and parameters | |
| 872 return function (evt) { | |
| 873 console.debug('click action=', action, ' evt=', evt); | |
| 874 $elem.digilib.apply($elem, action); | |
| 875 return false; | |
| 876 }; | |
| 877 } else { | |
| 878 // the handler function calls digilib with action | |
| 879 return function (evt) { | |
| 880 console.debug('click action=', action, ' evt=', evt); | |
| 881 $elem.digilib(action); | |
| 882 return false; | |
| 883 }; | |
| 884 } | |
| 885 })()); | |
| 886 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
| 683 | 887 } |
| 655 | 888 // make buttons div scroll if too large for window |
| 889 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 890 $buttonsDiv.css('position', 'absolute'); | |
| 891 } | |
| 690 | 892 // buttons hidden at first |
| 893 $buttonsDiv.hide(); | |
| 894 $elem.append($buttonsDiv); | |
| 675 | 895 if (data.$buttonSets == null) { |
| 690 | 896 // first button set |
| 675 | 897 data.$buttonSets = [$buttonsDiv]; |
| 898 } else { | |
| 683 | 899 $elem.append($buttonsDiv); |
| 675 | 900 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
| 901 } | |
| 605 | 902 return $buttonsDiv; |
| 603 | 903 }; |
| 608 | 904 |
| 905 // creates HTML structure for the bird's eye view in elem | |
| 631 | 906 var setupBirdDiv = function (data) { |
| 640 | 907 var $elem = data.$elem; |
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908 var settings = data.settings; |
| 608 | 909 // use only the relevant parameters |
| 910 var keys = ['fn','pn','dw','dh']; | |
| 667 | 911 var birdDivOptions = { |
| 912 dw : settings.birdDivWidth, | |
| 913 dh : settings.birdDivHeight | |
| 914 }; | |
| 915 var birdSettings = $.extend({}, settings, birdDivOptions); | |
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916 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
| 608 | 917 // the bird's eye div |
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918 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 608 | 919 // the detail indicator frame |
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920 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
| 608 | 921 // the small image |
| 922 var $birdImg = $('<img class="birdimg"/>'); | |
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923 $elem.append($birdDiv); |
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924 $birdDiv.append($birdZoom); |
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925 $birdDiv.append($birdImg); |
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926 $birdZoom.css(data.settings.birdIndicatorStyle); |
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927 data.$birdDiv = $birdDiv; |
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928 data.$birdZoom = $birdZoom; |
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929 data.$birdImg = $birdImg; |
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930 $birdImg.load(birdImgLoadedHandler(data)); |
| 608 | 931 $birdImg.attr('src', birdUrl); |
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932 if (data.settings.isBirdDivVisible) { |
| 680 | 933 $birdDiv.show(); |
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934 } |
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935 birdZoom(data); |
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936 }; |
| 608 | 937 |
| 618 | 938 // creates HTML structure for the about view in elem |
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939 var setupAboutDiv = function (data) { |
| 640 | 940 var $elem = data.$elem; |
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941 var settings = data.settings; |
| 618 | 942 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 609 | 943 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 944 var $link = $('<a/>'); | |
| 945 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 946 var $content = $('<p/>'); | |
| 947 $elem.append($aboutDiv); | |
| 948 $aboutDiv.append($header); | |
| 949 $aboutDiv.append($link); | |
| 950 $aboutDiv.append($content); | |
| 951 $link.append($logo); | |
| 952 $logo.attr('src', settings.logoUrl); | |
| 628 | 953 $link.attr('href', settings.homeUrl); |
| 609 | 954 $content.text('Version: ' + settings.version); |
| 628 | 955 // click hides |
| 642 | 956 $aboutDiv.bind('click.digilib', function () { |
| 639 | 957 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 642 | 958 return false; |
| 703 | 959 }); |
| 628 | 960 data.$aboutDiv = $aboutDiv; |
| 627 | 961 }; |
| 962 | |
| 628 | 963 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 964 var showDiv = function (isVisible, $div, show) { | |
| 638 | 965 if (show == null) { |
| 628 | 966 // toggle visibility |
| 967 isVisible = !isVisible; | |
| 968 } else { | |
| 969 // set visibility | |
| 970 isVisible = show; | |
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971 } |
| 628 | 972 if (isVisible) { |
| 973 $div.fadeIn(); | |
| 974 } else { | |
| 975 $div.fadeOut(); | |
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976 } |
| 628 | 977 return isVisible; |
| 627 | 978 }; |
| 609 | 979 |
| 690 | 980 // display more (or less) button sets |
| 981 var showButtons = function (data, more, setIdx, animated) { | |
| 704 | 982 var atime = animated ? 'fast': 0; |
| 690 | 983 if (more) { |
| 984 // add set | |
| 985 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 986 var $set; | |
| 987 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
| 988 // set exists | |
| 989 $set = data.$buttonSets[setIdx]; | |
| 990 } else { | |
| 991 $set = createButtons(data, setIdx); | |
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992 } |
| 690 | 993 if ($set == null) return false; |
| 994 var btnWidth = $set.width(); | |
| 995 // move remaining sets left and show new set | |
| 704 | 996 if ($otherSets.length > 0) { |
| 997 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
| 998 function () {$set.show();}); | |
| 690 | 999 } else { |
| 1000 $set.show(); | |
| 704 | 1001 } |
| 690 | 1002 } else { |
| 1003 // remove set | |
| 1004 var $set = data.$buttonSets[setIdx]; | |
| 1005 if ($set == null) return false; | |
| 1006 var btnWidth = $set.width(); | |
| 1007 // hide last set | |
| 1008 $set.hide(); | |
| 1009 // take remaining sets and move right | |
| 1010 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 704 | 1011 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
| 1012 } | |
| 690 | 1013 return true; |
| 1014 }; | |
| 1015 | |
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1016 // create Transform from area and $img |
| 668 | 1017 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
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1018 var picrect = geom.rectangle($img); |
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1019 var trafo = geom.transform(); |
| 668 | 1020 // move zoom area offset to center |
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1021 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 668 | 1022 // scale zoom area size to [1,1] |
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1023 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 668 | 1024 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 1025 if (rot || hmir || vmir) { | |
| 1026 // move [0.5,0.5] to center | |
| 1027 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 1028 if (hmir) { | |
| 1029 // mirror about center | |
| 1030 trafo.concat(trafo.getMirror('y')); | |
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1031 } |
| 668 | 1032 if (vmir) { |
| 1033 // mirror about center | |
| 1034 trafo.concat(trafo.getMirror('x')); | |
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1035 } |
| 668 | 1036 if (rot) { |
| 1037 // rotate around center | |
| 1038 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
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1039 } |
| 668 | 1040 // move back |
| 1041 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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1042 } |
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1043 // scale to screen position and size |
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1044 trafo.concat(trafo.getScale(picrect)); |
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1045 trafo.concat(trafo.getTranslation(picrect)); |
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1046 return trafo; |
| 648 | 1047 }; |
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1048 |
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1049 // returns function for load event of scaler img |
| 629 | 1050 var scalerImgLoadedHandler = function (data) { |
| 626 | 1051 return function () { |
| 620 | 1052 console.debug("img loaded! this=", this, " data=", data); |
| 1053 // create Transform from current area and picsize | |
| 668 | 1054 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
| 1055 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
| 679 | 1056 console.debug("imgTrafo=", data.imgTrafo); |
| 708 | 1057 var $img = data.$img; |
| 1058 // show image in case it was hidden (for example in zoomDrag) | |
| 1059 $img.show(); | |
| 620 | 1060 // display marks |
| 626 | 1061 renderMarks(data); |
|
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1062 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation |
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1063 var $birdImg = data.$birdImg; |
| 698 | 1064 // should the birdview adapt to mirror or rotation? decision: No. :-) |
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1065 if ($birdImg) { |
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1066 $birdImg.triggerHandler('load'); |
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1067 } |
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1068 }; |
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1069 }; |
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1070 |
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1071 // returns function for load event of bird's eye view img |
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1072 var birdImgLoadedHandler = function (data) { |
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1073 var $img = data.$birdImg; |
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1074 return function () { |
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1075 console.debug("birdimg loaded! this=", this, " data=", data); |
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1076 // create Transform from current area and picsize |
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1077 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
| 661 | 1078 // display red indicator around zoomarea |
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1079 renderbirdZoom(data); |
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1080 }; |
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1081 }; |
| 626 | 1082 |
| 1083 // place marks on the image | |
| 1084 var renderMarks = function (data) { | |
| 640 | 1085 var $elem = data.$elem; |
| 636 | 1086 var marks = data.marks; |
| 642 | 1087 // TODO: clear marks first(?) |
| 626 | 1088 for (var i = 0; i < marks.length; i++) { |
| 1089 var mark = marks[i]; | |
| 636 | 1090 if (data.zoomArea.containsPosition(mark)) { |
| 626 | 1091 var mpos = data.imgTrafo.transform(mark); |
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1092 console.debug("renderMarks: mpos=",mpos); |
| 626 | 1093 // create mark |
| 1094 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 1095 var $mark = $(html); | |
| 1096 $elem.append($mark); | |
| 647 | 1097 $mark.offset({left : mpos.x, top : mpos.y}); |
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1098 } |
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1099 } |
| 626 | 1100 }; |
| 648 | 1101 |
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1102 // show zoom area indicator on bird's eye view |
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1103 var renderbirdZoom = function (data) { |
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1104 var $birdZoom = data.$birdZoom; |
| 652 | 1105 var zoomArea = data.zoomArea; |
| 1106 var indRect = data.birdTrafo.transform(zoomArea); | |
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1107 var coords = { |
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1108 left : indRect.x-2, // acount for frame width |
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1109 top : indRect.y-2, |
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1110 width : indRect.width, |
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1111 height: indRect.height |
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1112 }; |
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1113 var normalSize = isFullArea(zoomArea); |
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1114 if (data.settings.interactionMode === 'fullscreen') { |
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1115 // no animation for fullscreen |
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1116 if (normalSize) return $birdZoom.hide(); |
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1117 $birdZoom.width(coords.width); |
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1118 $birdZoom.height(coords.height); |
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1119 $birdZoom.offset(coords); |
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1120 $birdZoom.show(); |
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1121 return; |
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1122 } |
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1123 // nice animation for embedded mode :-) |
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671
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1124 var makeCompleteFunction = function($birdZoom, normalSize) { |
|
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1125 return function() { |
|
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1126 if (normalSize) $birdZoom.hide(); |
|
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1127 }; |
|
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1128 }; |
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1129 var opts = { |
|
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1130 'complete' : makeCompleteFunction($birdZoom, normalSize) |
|
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1131 }; |
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1132 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
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1133 $birdZoom.animate(coords, opts); |
|
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1134 }; |
| 652 | 1135 |
| 640 | 1136 // zooms by the given factor |
| 636 | 1137 var zoomBy = function(data, factor) { |
| 1138 var area = data.zoomArea; | |
| 1139 var newarea = area.copy(); | |
| 1140 // scale | |
| 1141 newarea.width /= factor; | |
| 1142 newarea.height /= factor; | |
| 1143 // and recenter | |
| 1144 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 1145 newarea.y -= 0.5 * (newarea.height - area.height); | |
| 1146 newarea = MAX_ZOOMAREA.fit(newarea); | |
| 1147 data.zoomArea = newarea; | |
|
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1148 redisplay(data); |
| 636 | 1149 }; |
| 1150 | |
| 640 | 1151 // add a mark where clicked |
| 1152 var setMark = function (data) { | |
| 642 | 1153 var $scaler = data.$scaler; |
| 640 | 1154 // start event capturing |
| 642 | 1155 $scaler.one('click.digilib', function (evt) { |
| 640 | 1156 // event handler adding a new mark |
|
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1157 var mpos = geom.position(evt); |
| 640 | 1158 var pos = data.imgTrafo.invtransform(mpos); |
| 1159 data.marks.push(pos); | |
| 1160 redisplay(data); | |
| 642 | 1161 return false; // do we even get here? |
| 640 | 1162 }); |
| 1163 }; | |
| 661 | 1164 |
| 647 | 1165 var zoomArea = function(data) { |
| 1166 $elem = data.$elem; | |
| 1167 $scaler = data.$scaler; | |
| 1168 var pt1, pt2; | |
| 1169 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 1170 $elem.append($zoomDiv); | |
| 661 | 1171 $zoomDiv.css(data.settings.zoomrectStyle); |
| 647 | 1172 var picRect = geom.rectangle($scaler); |
| 1173 // FIX ME: is there a way to query the border width from CSS info? | |
| 1174 // rect.x -= 2; // account for overlay borders | |
| 1175 // rect.y -= 2; | |
| 1176 | |
| 1177 var zoomStart = function (evt) { | |
| 1178 pt1 = geom.position(evt); | |
| 1179 // setup and show zoom div | |
| 1180 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
| 1181 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
| 661 | 1182 $zoomDiv.width(0).height(0); |
| 647 | 1183 $zoomDiv.show(); |
| 1184 // register events | |
| 1185 $elem.bind("mousemove.digilib", zoomMove); | |
| 1186 $elem.bind("mouseup.digilib", zoomEnd); | |
| 1187 return false; | |
| 1188 }; | |
| 661 | 1189 |
| 647 | 1190 // mouseup handler: end moving |
| 1191 var zoomEnd = function (evt) { | |
| 1192 pt2 = geom.position(evt); | |
| 1193 // assume a click and continue if the area is too small | |
| 1194 var clickRect = geom.rectangle(pt1, pt2); | |
| 703 | 1195 if (clickRect.getArea() <= 5) return false; |
| 647 | 1196 // hide zoom div |
| 1197 $zoomDiv.remove(); | |
| 1198 // unregister events | |
| 1199 $elem.unbind("mousemove.digilib", zoomMove); | |
| 1200 $elem.unbind("mouseup.digilib", zoomEnd); | |
| 1201 // clip and transform | |
| 1202 clickRect.clipTo(picRect); | |
| 1203 var area = data.imgTrafo.invtransform(clickRect); | |
| 1204 data.zoomArea = area; | |
| 1205 // zoomed is always fit | |
| 1206 data.settings.ws = 1; | |
| 1207 redisplay(data); | |
| 1208 return false; | |
| 1209 }; | |
| 661 | 1210 |
| 647 | 1211 // mouse move handler |
| 1212 var zoomMove = function (evt) { | |
| 1213 pt2 = geom.position(evt); | |
| 1214 var rect = geom.rectangle(pt1, pt2); | |
| 1215 rect.clipTo(picRect); | |
| 1216 // update zoom div | |
|
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1217 rect.adjustDiv($zoomDiv); |
| 647 | 1218 return false; |
| 1219 }; | |
| 661 | 1220 |
| 647 | 1221 // bind start zoom handler |
| 1222 $scaler.one('mousedown.digilib', zoomStart); | |
| 1223 }; | |
| 640 | 1224 |
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1225 var birdZoom = function(data) { |
|
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1226 var $birdImg = data.$birdImg; |
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1227 var $birdZoom = data.$birdZoom; |
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1228 var startPos, newRect, birdImgRect, birdZoomRect; |
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1229 |
|
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1230 var birdZoomMove = function(evt) { |
|
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1231 // mousemove handler: drag |
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1232 var pos = geom.position(evt); |
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1233 var dx = pos.x - startPos.x; |
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1234 var dy = pos.y - startPos.y; |
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1235 // move birdZoom div, keeping size |
|
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1236 newRect = geom.rectangle( |
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1237 birdZoomRect.x + dx, |
|
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1238 birdZoomRect.y + dy, |
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1239 birdZoomRect.width, |
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1240 birdZoomRect.height); |
|
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1241 // stay within birdimage |
|
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1242 newRect.stayInside(birdImgRect); |
|
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1243 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
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1244 // $birdZoom.show(); |
|
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1245 return false; |
|
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|
1246 }; |
|
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1247 |
|
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1248 var birdZoomEndDrag = function(evt) { |
|
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1249 // mouseup handler: reload page |
|
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1250 var settings = data.settings; |
| 673 | 1251 $(document).unbind("mousemove.digilib", birdZoomMove); |
| 1252 $(document).unbind("mouseup.digilib", birdZoomEndDrag); | |
| 1253 $birdZoom.unbind("mousemove.digilib", birdZoomMove); | |
| 1254 $birdZoom.unbind("mouseup.digilib", birdZoomEndDrag); | |
|
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1255 if (newRect == null) { // no movement happened |
|
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1256 startPos = birdZoomRect.getCenter(); |
|
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1257 birdZoomMove(evt); // set center to click position |
|
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1258 } |
|
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1259 if (data.zoomArea) { |
| 672 | 1260 // should always be true |
| 1261 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
| 1262 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
| 1263 data.zoomArea.x = x; | |
| 1264 data.zoomArea.y = y; | |
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1265 } |
|
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1266 settings.ws = 1; // zoomed is always fit |
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1267 redisplay(data); |
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1268 return false; |
|
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|
1269 }; |
|
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1270 |
|
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1271 var birdZoomStartDrag = function(evt) { |
|
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1272 // mousedown handler: start dragging bird zoom to a new position |
|
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1273 startPos = geom.position(evt); |
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1274 birdImgRect = geom.rectangle($birdImg); |
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1275 birdZoomRect = geom.rectangle($birdZoom); |
| 673 | 1276 $(document).bind("mousemove.digilib", birdZoomMove); |
| 1277 $(document).bind("mouseup.digilib", birdZoomEndDrag); | |
| 1278 $birdZoom.bind("mousemove.digilib", birdZoomMove); | |
| 1279 $birdZoom.bind("mouseup.digilib", birdZoomEndDrag); | |
|
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1280 return false; |
|
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|
1281 }; |
|
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|
1282 |
| 674 | 1283 $birdImg.bind("mousedown.digilib", birdZoomStartDrag); |
| 1284 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag); | |
|
671
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1285 }; |
|
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|
1286 |
| 698 | 1287 var setupZoomDrag = function(data) { |
| 1288 // setup handlers for dragging the zoomed image | |
| 1289 var pt1, pt2; | |
| 1290 var dx = 0; | |
| 1291 var dy = 0; | |
| 1292 var $elem = data.$elem; | |
| 1293 var $scaler = data.$scaler; | |
| 1294 var $img = data.$img; | |
| 703 | 1295 |
| 698 | 1296 var dragStart = function (evt) { |
| 1297 // drag the image and load a new detail on mouse up | |
| 1298 // useless if not zoomed | |
| 1299 if (isFullArea(data.zoomArea)) return false; | |
| 1300 pt1 = geom.position(evt); | |
| 1301 $imgRect = geom.rectangle($img); | |
| 708 | 1302 // keep scaler div size while $img is hidden (for embedded mode) |
| 1303 $imgRect.adjustDiv($scaler); | |
| 698 | 1304 // hide the scaler image, show it as background of div instead |
| 708 | 1305 $scaler.css({ |
| 698 | 1306 'background-image' : 'url(' + $img.attr('src') + ')', |
| 1307 'background-repeat' : 'no-repeat', | |
| 699 | 1308 'background-position' : 'top left', |
| 698 | 1309 'cursor' : 'move' |
| 1310 }); | |
| 1311 $img.hide(); | |
| 1312 $(document).bind("mousemove.digilib", dragMove); | |
| 1313 $(document).bind("mouseup.digilib", dragEnd); | |
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1314 return false; |
| 698 | 1315 }; |
| 703 | 1316 |
| 698 | 1317 var dragMove = function (evt) { |
| 708 | 1318 // mousemove handler: drag zoomed image |
| 698 | 1319 var pos = geom.position(evt); |
| 1320 dx = pos.x - pt1.x; | |
| 1321 dy = pos.y - pt1.y; | |
| 1322 // move the background image to the new position | |
| 708 | 1323 $scaler.css({ |
| 698 | 1324 'background-position' : dx + "px " + dy + "px" |
| 1325 }); | |
| 1326 return false; | |
| 1327 }; | |
| 703 | 1328 |
| 698 | 1329 var dragEnd = function (evt) { |
| 708 | 1330 // mouseup handler: reload zoomed image in new position |
| 1331 $scaler.css({ | |
| 698 | 1332 'cursor' : 'default' |
| 1333 }); | |
| 1334 $(document).unbind("mousemove.digilib", dragMove); | |
| 1335 $(document).unbind("mouseup.digilib", dragEnd); | |
| 1336 // calculate relative offset | |
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1337 if (dx === 0 && dy === 0) return false; // no movement |
| 698 | 1338 // reload with scaler image showing the new ausschnitt |
|
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1339 // digilib.moveBy(x, y); |
|
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1340 var pos = geom.position(-dx, -dy); |
|
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1341 var newPos = data.imgTrafo.invtransform(pos); |
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1342 var newArea = data.zoomArea.setPt1(newPos); |
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1343 data.zoomArea = MAX_ZOOMAREA.fit(newArea); |
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1344 redisplay(data); |
| 698 | 1345 return false; |
| 1346 }; | |
| 1347 | |
| 1348 $scaler.bind("mousedown.digilib", dragStart); | |
| 1349 }; | |
| 1350 | |
| 696 | 1351 // get image quality as a number (0..2) |
| 1352 var getQuality = function (data) { | |
| 1353 var flags = data.scalerFlags; | |
| 1354 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
| 1355 return parseInt(q[1], 10); | |
| 699 | 1356 }; |
| 696 | 1357 |
| 1358 // set image quality as a number (0..2) | |
| 1359 var setQuality = function (data, qual) { | |
| 1360 var flags = data.scalerFlags; | |
| 1361 // clear flags | |
| 1362 for (var i = 0; i < 3; ++i) { | |
| 1363 delete flags['q'+i]; | |
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1364 } |
| 696 | 1365 flags['q'+qual] = 'q'+qual; |
| 699 | 1366 }; |
| 703 | 1367 |
| 643 | 1368 // sets a key to a value (relative values with +/- if relative=true) |
| 1369 var setNumValue = function(settings, key, value) { | |
|
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1370 if (isNumber(value)) { |
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1371 settings[key] = value; |
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1372 return value; |
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1373 } |
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1374 var sign = value[0]; |
| 643 | 1375 if (sign === '+' || sign === '-') { |
| 1376 if (settings[key] == null) { | |
|
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1377 // this isn't perfect but still... |
| 643 | 1378 settings[key] = 0; |
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1379 } |
| 643 | 1380 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
| 1381 } else { | |
| 1382 settings[key] = value; | |
|
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1383 } |
| 643 | 1384 return settings[key]; |
| 1385 }; | |
| 648 | 1386 |
| 1387 // auxiliary function (from old dllib.js) | |
| 652 | 1388 isFullArea = function(area) { |
| 1389 return (area.width === 1.0) && (area.height === 1.0); | |
| 648 | 1390 }; |
| 1391 | |
| 634 | 1392 // auxiliary function (from Douglas Crockford, A.10) |
| 1393 var isNumber = function isNumber(value) { | |
| 703 | 1394 return typeof value === 'number' && isFinite(value); |
| 634 | 1395 }; |
| 648 | 1396 |
| 624 | 1397 // auxiliary function to crop senseless precision |
| 1398 var cropFloat = function (x) { | |
| 630 | 1399 return parseInt(10000 * x, 10) / 10000; |
| 624 | 1400 }; |
| 648 | 1401 |
| 685 | 1402 // fallback for console.log calls |
| 1403 if (customConsole) { | |
| 1404 var logFunction = function(type) { | |
| 1405 return function(){ | |
| 1406 var $debug = $('#debug'); // debug div | |
| 1407 if (!$debug) return; | |
| 1408 var args = Array.prototype.slice.call(arguments); | |
| 1409 var argtext = args.join(' '); | |
| 1410 var $logDiv = $('<div/>'); | |
| 1411 $logDiv.addClass(type); | |
| 1412 $logDiv.text(argtext); | |
| 1413 $debug.append($logDiv); | |
| 1414 }; | |
| 1415 }; | |
| 1416 console.log = logFunction('_log'); | |
| 1417 console.debug = logFunction('_debug'); | |
| 1418 console.error = logFunction('_error'); | |
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1419 } |
| 685 | 1420 |
| 598 | 1421 // hook plugin into jquery |
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1422 $.fn.digilib = function(action) { |
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1423 if (actions[action]) { |
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1424 // call action on this with the remaining arguments (inserting data as first argument) |
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1425 var $elem = $(this); |
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1426 var data = $elem.data('digilib'); |
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1427 var args = Array.prototype.slice.call(arguments, 1); |
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1428 args.unshift(data); |
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1429 return actions[action].apply(this, args); |
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1430 } else if (typeof(action) === 'object' || !action) { |
| 627 | 1431 // call init on this |
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1432 return actions.init.apply(this, arguments); |
| 598 | 1433 } else { |
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1434 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
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1435 } |
| 598 | 1436 }; |
| 685 | 1437 |
| 597 | 1438 })(jQuery); |