Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 713:653f0a87550c jquery
adjust size of scalerDiv only when img loaded
| author | hertzhaft |
|---|---|
| date | Mon, 31 Jan 2011 10:16:30 +0100 |
| parents | 6349e5c090c6 |
| children | e7655e38764b |
| rev | line source |
|---|---|
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1 /* Copyright (c) 2011 Martin Raspe, Robert Casties |
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2 |
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3 This program is free software: you can redistribute it and/or modify |
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4 it under the terms of the GNU Lesser General Public License as published by |
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5 the Free Software Foundation, either version 2 of the License, or |
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6 (at your option) any later version. |
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7 |
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8 This program is distributed in the hope that it will be useful, |
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9 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 GNU Lesser General Public License for more details. |
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12 |
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13 You should have received a copy of the GNU Lesser General Public License |
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14 along with this program. If not, see <http://www.gnu.org/licenses/>. |
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15 |
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16 Authors: |
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17 Martin Raspe, Robert Casties, 11.1.2011 |
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18 */ |
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19 |
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20 /** |
| 597 | 21 * digilib jQuery plugin |
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22 * |
| 597 | 23 */ |
| 648 | 24 |
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25 /*jslint browser: true, debug: true, forin: true */ |
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26 |
| 629 | 27 // fallback for console.log calls |
| 28 if (typeof(console) === 'undefined') { | |
| 29 var console = { | |
| 685 | 30 log : function(){}, |
| 31 debug : function(){}, | |
| 32 error : function(){} | |
| 33 }; | |
| 34 var customConsole = true; | |
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35 } |
| 597 | 36 |
| 37 (function($) { | |
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38 var buttons = { |
| 603 | 39 reference : { |
| 682 | 40 onclick : "reference", |
| 603 | 41 tooltip : "get a reference URL", |
| 42 img : "reference.png" | |
| 43 }, | |
| 44 zoomin : { | |
| 636 | 45 onclick : ["zoomBy", 1.4], |
| 603 | 46 tooltip : "zoom in", |
| 47 img : "zoom-in.png" | |
| 48 }, | |
| 49 zoomout : { | |
| 636 | 50 onclick : ["zoomBy", 0.7], |
| 603 | 51 tooltip : "zoom out", |
| 52 img : "zoom-out.png" | |
| 53 }, | |
| 54 zoomarea : { | |
| 647 | 55 onclick : "zoomArea", |
| 603 | 56 tooltip : "zoom area", |
| 57 img : "zoom-area.png" | |
| 58 }, | |
| 59 zoomfull : { | |
| 643 | 60 onclick : "zoomFull", |
| 603 | 61 tooltip : "view the whole image", |
| 62 img : "zoom-full.png" | |
| 63 }, | |
| 64 pagewidth : { | |
| 643 | 65 onclick : ["zoomFull", "width"], |
| 603 | 66 tooltip : "page width", |
| 67 img : "pagewidth.png" | |
| 68 }, | |
| 69 back : { | |
| 616 | 70 onclick : ["gotoPage", "-1"], |
| 603 | 71 tooltip : "goto previous image", |
| 72 img : "back.png" | |
| 73 }, | |
| 74 fwd : { | |
| 616 | 75 onclick : ["gotoPage", "+1"], |
| 603 | 76 tooltip : "goto next image", |
| 77 img : "fwd.png" | |
| 78 }, | |
| 79 page : { | |
| 709 | 80 onclick : "gotoPage", |
| 81 tooltip : "goto image number", | |
| 603 | 82 img : "page.png" |
| 83 }, | |
| 84 bird : { | |
| 628 | 85 onclick : "showBirdDiv", |
| 603 | 86 tooltip : "show bird's eye view", |
| 87 img : "birds-eye.png" | |
| 88 }, | |
| 89 help : { | |
| 628 | 90 onclick : "showAboutDiv", |
| 603 | 91 tooltip : "about Digilib", |
| 92 img : "help.png" | |
| 93 }, | |
| 94 reset : { | |
| 681 | 95 onclick : "reset", |
| 603 | 96 tooltip : "reset image", |
| 97 img : "reset.png" | |
| 98 }, | |
| 99 mark : { | |
| 640 | 100 onclick : "setMark", |
| 603 | 101 tooltip : "set a mark", |
| 102 img : "mark.png" | |
| 103 }, | |
| 104 delmark : { | |
| 643 | 105 onclick : "removeMark", |
| 603 | 106 tooltip : "delete the last mark", |
| 107 img : "delmark.png" | |
| 108 }, | |
| 109 hmir : { | |
| 654 | 110 onclick : ["mirror", "h"], |
| 603 | 111 tooltip : "mirror horizontally", |
| 112 img : "mirror-horizontal.png" | |
| 113 }, | |
| 114 vmir : { | |
| 654 | 115 onclick : ["mirror", "v"], |
| 603 | 116 tooltip : "mirror vertically", |
| 117 img : "mirror-vertical.png" | |
| 118 }, | |
| 119 rot : { | |
| 656 | 120 onclick : "rotate", |
| 603 | 121 tooltip : "rotate image", |
| 122 img : "rotate.png" | |
| 123 }, | |
| 124 brgt : { | |
| 656 | 125 onclick : "brightness", |
| 603 | 126 tooltip : "set brightness", |
| 127 img : "brightness.png" | |
| 128 }, | |
| 129 cont : { | |
| 656 | 130 onclick : "contrast", |
| 603 | 131 tooltip : "set contrast", |
| 132 img : "contrast.png" | |
| 133 }, | |
| 134 rgb : { | |
| 135 onclick : "javascript:setParamWin('rgb', '...')", | |
| 136 tooltip : "set rgb values", | |
| 137 img : "rgb.png" | |
| 138 }, | |
| 139 quality : { | |
| 696 | 140 onclick : "setquality", |
| 603 | 141 tooltip : "set image quality", |
| 142 img : "quality.png" | |
| 143 }, | |
| 144 size : { | |
| 145 onclick : "javascript:toggleSizeMenu()", | |
| 146 tooltip : "set page size", | |
| 147 img : "size.png" | |
| 148 }, | |
| 149 calibrationx : { | |
| 150 onclick : "javascript:calibrate('x')", | |
| 151 tooltip : "calibrate screen x-ratio", | |
| 152 img : "calibration-x.png" | |
| 153 }, | |
| 154 scale : { | |
| 155 onclick : "javascript:toggleScaleMenu()", | |
| 156 tooltip : "change image scale", | |
| 157 img : "original-size.png" | |
| 158 }, | |
| 692 | 159 toggleoptions : { |
| 160 onclick : "morebuttons", | |
| 161 tooltip : "more options", | |
| 162 img : "options.png" | |
| 163 }, | |
| 683 | 164 moreoptions : { |
| 165 onclick : ["morebuttons", "+1"], | |
| 166 tooltip : "more options", | |
| 167 img : "options.png" | |
| 168 }, | |
| 169 lessoptions : { | |
| 170 onclick : ["morebuttons", "-1"], | |
| 171 tooltip : "less options", | |
| 603 | 172 img : "options.png" |
| 173 }, | |
| 174 SEP : { | |
| 175 img : "sep.png" | |
| 176 } | |
| 177 }; | |
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178 |
| 598 | 179 var defaults = { |
| 609 | 180 // version of this script |
| 628 | 181 'version' : 'jquery.digilib.js 0.9', |
| 609 | 182 // logo url |
| 183 'logoUrl' : '../img/digilib-logo-text1.png', | |
| 628 | 184 // homepage url (behind logo) |
| 185 'homeUrl' : 'http://digilib.berlios.de', | |
| 603 | 186 // base URL to Scaler servlet |
| 645 | 187 'scalerBaseUrl' : null, |
| 603 | 188 // list of Scaler parameters |
| 620 | 189 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
| 190 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
| 191 // Scaler parameter defaults | |
| 636 | 192 'pn' : 1, |
| 620 | 193 'ww' : 1.0, |
| 194 'wh' : 1.0, | |
| 195 'wx' : 0.0, | |
| 196 'wy' : 0.0, | |
| 197 'ws' : 1.0, | |
| 636 | 198 'mo' : '', |
| 199 'rot' : 0, | |
| 200 'cont' : 0, | |
| 201 'brgt' : 0, | |
| 202 'rgbm' : '0/0/0', | |
| 203 'rgba' : '0/0/0', | |
| 204 'ddpi' : null, | |
| 205 'ddpix' : null, | |
| 206 'ddpiy' : null, | |
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207 // list of digilib parameters |
| 643 | 208 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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209 // digilib parameter defaults |
| 636 | 210 'mk' : '', |
| 643 | 211 'clop' : '', |
| 636 | 212 // mode of operation: |
| 213 // fullscreen = take parameters from page URL, keep state in page URL | |
| 214 // embedded = take parameters from Javascript options, keep state inside object | |
| 603 | 215 'interactionMode' : 'fullscreen', |
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216 // buttons |
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217 'buttons' : buttons, |
| 661 | 218 // defaults for digilib buttons |
| 658 | 219 'buttonSettings' : { |
| 220 'fullscreen' : { | |
| 661 | 221 // path to button images (must end with a slash) |
| 658 | 222 'imagePath' : 'img/fullscreen/', |
| 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, | |
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241 // parameters used by bird's eye div |
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242 'birdDivParams' : ['fn','pn','dw','dh'], |
| 661 | 243 // style of the zoom area indicator in the bird's eye div |
| 652 | 244 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
| 661 | 245 // style of zoom area "rubber band" |
| 246 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
| 609 | 247 // is the "about" window shown? |
| 248 'isAboutDivVisible' : false | |
| 249 | |
| 603 | 250 }; |
| 648 | 251 |
| 601 | 252 // affine geometry classes |
| 253 var geom = dlGeometry(); | |
| 648 | 254 |
| 636 | 255 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
| 648 | 256 |
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257 var actions = { |
| 661 | 258 // init: digilib initialization |
| 259 init : function(options) { | |
| 260 // settings for this digilib instance are merged from defaults and options | |
| 261 var settings = $.extend({}, defaults, options); | |
| 262 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
| 263 var queryParams = {}; | |
| 264 if (isFullscreen) { | |
| 265 queryParams = parseQueryParams(); | |
| 266 // check scalerBaseUrl | |
| 267 if (settings.scalerBaseUrl == null) { | |
| 268 // try the host this came from | |
| 269 var h = window.location.host; | |
| 270 if (window.location.host) { | |
| 271 var url = window.location.href; | |
| 272 // assume the page lives in [webapp]/jquery/ | |
| 273 var pos = url.indexOf('jquery/'); | |
| 274 if (pos > 0) { | |
| 275 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
| 645 | 276 } |
| 277 } | |
| 629 | 278 } |
| 661 | 279 } |
| 280 return this.each(function() { | |
| 281 var $elem = $(this); | |
| 282 var data = $elem.data('digilib'); | |
| 681 | 283 var params, elemSettings; |
| 661 | 284 // if the plugin hasn't been initialized yet |
| 285 if (!data) { | |
| 286 // merge query parameters | |
| 287 if (isFullscreen) { | |
| 681 | 288 params = queryParams; |
| 661 | 289 } else { |
| 681 | 290 params = parseImgParams($elem); |
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291 } |
| 661 | 292 // store $(this) element in the settings |
| 681 | 293 elemSettings = $.extend({}, settings, params); |
| 690 | 294 data = { |
| 661 | 295 $elem : $elem, |
| 296 settings : elemSettings, | |
| 681 | 297 queryParams : params |
| 661 | 298 }; |
| 299 // store in data element | |
| 300 $elem.data('digilib', data); | |
| 301 } | |
| 302 unpackParams(data); | |
| 675 | 303 // create HTML structure for scaler |
| 661 | 304 setupScalerDiv(data); |
| 690 | 305 // add buttons |
| 306 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { | |
| 307 showButtons(data, true, i); | |
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308 } |
| 661 | 309 // bird's eye view creation |
| 703 | 310 if (elemSettings.isBirdDivVisible) { |
| 631 | 311 setupBirdDiv(data); |
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312 } |
| 661 | 313 // about window creation - TODO: could be deferred? restrict to only one item? |
| 314 setupAboutDiv(data); | |
| 703 | 315 // TODO: the actual moving code |
| 700 | 316 setupZoomDrag(data); |
| 661 | 317 }); |
| 318 }, | |
| 319 | |
| 320 // destroy: clean up digilib | |
| 321 destroy : function(data) { | |
| 322 return this.each(function(){ | |
| 323 var $elem = $(this); | |
| 324 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
| 325 data.digilib.remove(); | |
| 326 $elem.removeData('digilib'); | |
| 327 }); | |
| 328 }, | |
| 329 | |
| 330 // show or hide the 'about' window | |
| 331 showAboutDiv : function(data, show) { | |
| 332 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
| 333 }, | |
| 648 | 334 |
| 661 | 335 // event handler: toggles the visibility of the bird's eye window |
| 336 showBirdDiv : function (data, show) { | |
| 337 if (data.$birdDiv == null) { | |
| 338 // no bird div -> create | |
| 339 setupBirdDiv(data); | |
| 340 } | |
| 341 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
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342 data.$birdImg.triggerHandler('load'); |
| 661 | 343 }, |
| 344 | |
| 345 // goto given page nr (+/-: relative) | |
| 346 gotoPage : function (data, pageNr) { | |
| 347 var settings = data.settings; | |
| 348 var oldpn = settings.pn; | |
| 709 | 349 if (pageNr == null) { |
| 350 pageNr = window.prompt("Goto page number", oldpn); | |
| 351 } | |
| 661 | 352 var pn = setNumValue(settings, "pn", pageNr); |
| 353 if (pn == null) return false; // nothing happened | |
| 354 if (pn < 1) { | |
| 355 alert("no such page (page number too low)"); | |
| 356 settings.pn = oldpn; | |
| 357 return false; | |
| 358 } | |
| 359 if (settings.pt) { | |
| 360 if (pn > settings.pt) { | |
| 361 alert("no such page (page number too high)"); | |
| 616 | 362 settings.pn = oldpn; |
| 363 return false; | |
| 627 | 364 } |
| 661 | 365 } |
| 366 // reset mk and others(?) | |
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367 // TODO: adjust bird div |
| 661 | 368 data.marks = []; |
| 369 data.zoomArea = MAX_ZOOMAREA; | |
| 370 // then reload | |
| 371 redisplay(data); | |
| 372 }, | |
| 647 | 373 |
| 661 | 374 // zoom by a given factor |
| 375 zoomBy : function (data, factor) { | |
| 376 zoomBy(data, factor); | |
| 377 }, | |
| 640 | 378 |
| 661 | 379 // zoom interactively |
| 380 zoomArea : function (data) { | |
| 381 zoomArea(data); | |
| 382 }, | |
| 643 | 383 |
| 661 | 384 // zoom out to full page |
| 385 zoomFull : function (data, mode) { | |
| 386 data.zoomArea = MAX_ZOOMAREA; | |
| 387 if (mode === 'width') { | |
| 388 data.dlOpts.fitwidth = 1; | |
| 389 delete data.dlOpts.fitheight; | |
| 390 } else if (mode === 'height') { | |
| 391 data.dlOpts.fitheight = 1; | |
| 392 delete data.dlOpts.fitwidth; | |
| 393 } else { | |
| 394 delete data.dlOpts.fitwidth; | |
| 395 delete data.dlOpts.fitheight; | |
| 396 } | |
| 397 redisplay(data); | |
| 398 }, | |
| 399 | |
| 400 // set a mark by clicking (or giving a position) | |
| 401 setMark : function (data, mpos) { | |
| 402 if (mpos == null) { | |
| 403 // interactive | |
| 404 setMark(data); | |
| 405 } else { | |
| 406 // use position | |
| 407 data.marks.push(pos); | |
| 656 | 408 redisplay(data); |
| 597 | 409 } |
| 661 | 410 }, |
| 411 | |
| 412 // remove the last mark | |
| 413 removeMark : function (data) { | |
| 414 data.marks.pop(); | |
| 415 redisplay(data); | |
| 416 }, | |
| 417 | |
| 418 // mirror the image | |
| 419 mirror : function (data, mode) { | |
| 420 var flags = data.scalerFlags; | |
| 421 if (mode === 'h') { | |
| 422 if (flags.hmir) { | |
| 423 delete flags.hmir; | |
| 424 } else { | |
| 425 flags.hmir = 1; | |
| 426 } | |
| 427 } else { | |
| 428 if (flags.vmir) { | |
| 429 delete flags.vmir; | |
| 430 } else { | |
| 431 flags.vmir = 1; | |
| 432 } | |
| 433 } | |
| 434 redisplay(data); | |
| 435 }, | |
| 643 | 436 |
| 661 | 437 // rotate the image |
| 438 rotate : function (data, angle) { | |
| 439 var rot = data.settings.rot; | |
| 440 if (angle == null) { | |
| 441 angle = window.prompt("Rotation angle:", rot); | |
| 442 } | |
| 443 data.settings.rot = angle; | |
| 444 redisplay(data); | |
| 445 }, | |
| 446 | |
| 447 // change brightness | |
| 448 brightness : function (data, factor) { | |
| 449 var brgt = data.settings.brgt; | |
| 450 if (factor == null) { | |
| 451 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 452 } | |
| 453 data.settings.brgt = factor; | |
| 454 redisplay(data); | |
| 455 }, | |
| 456 | |
| 457 // change contrast | |
| 458 contrast : function (data, factor) { | |
| 459 var cont = data.settings.cont; | |
| 460 if (factor == null) { | |
| 461 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 462 } | |
| 463 data.settings.cont = factor; | |
| 464 redisplay(data); | |
| 681 | 465 }, |
| 703 | 466 |
| 683 | 467 // display more (or less) button sets |
| 468 morebuttons : function (data, more) { | |
| 689 | 469 var settings = data.settings; |
| 692 | 470 if (more == null) { |
| 696 | 471 // toggle more or less (only works for 2 sets) |
| 692 | 472 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
| 473 if (settings.visibleButtonSets >= maxbtns) { | |
| 474 more = '-1'; | |
| 475 } else { | |
| 476 more = '+1'; | |
| 477 } | |
| 478 } | |
| 683 | 479 if (more === '-1') { |
| 480 // remove set | |
| 690 | 481 var setIdx = settings.visibleButtonSets - 1; |
| 482 if (showButtons(data, false, setIdx, true)) { | |
| 483 settings.visibleButtonSets--; | |
| 484 } | |
| 683 | 485 } else { |
| 486 // add set | |
| 690 | 487 var setIdx = settings.visibleButtonSets; |
| 488 if (showButtons(data, true, setIdx, true)) { | |
| 489 settings.visibleButtonSets++; | |
| 683 | 490 } |
| 491 } | |
| 684 | 492 }, |
| 681 | 493 |
| 696 | 494 // reset image parameters to defaults |
| 681 | 495 reset : function (data) { |
| 496 var settings = data.settings; | |
| 497 var paramNames = settings.digilibParamNames; | |
| 498 var params = data.queryParams; | |
| 702 | 499 // resets zoomArea, marks, scalerflags |
| 681 | 500 resetData(data); |
| 501 // delete all digilib parameters | |
| 502 for (var i = 0; i < paramNames.length; i++) { | |
| 503 var paramName = paramNames[i]; | |
| 504 delete settings[paramName]; | |
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505 } |
| 681 | 506 // fullscreen: restore only fn/pn parameters |
| 507 if (settings.interactionMode === 'fullscreen') { | |
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508 settings.fn = params.fn || ''; // no default defined |
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509 settings.pn = params.pn || defaults.pn; |
| 681 | 510 // embedded: restore original parameters |
| 511 } else { | |
| 512 $.extend(settings, params); | |
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513 } |
| 702 | 514 // TODO: should we really reset all user preferences here? |
| 515 settings.isBirdDivVisible = false; | |
| 516 settings.visibleButtonSets = 1; | |
| 705 | 517 delete data.dlOpts.fitwidth; |
| 518 delete data.dlOpts.fitheight; | |
| 681 | 519 redisplay(data); |
| 682 | 520 }, |
| 521 | |
| 696 | 522 // presents a reference url (returns value if noprompt) |
| 523 reference : function (data, noprompt) { | |
| 682 | 524 var settings = data.settings; |
| 525 var url; | |
| 526 if (settings.interactionMode === 'fullscreen') { | |
| 527 url = getDigilibUrl(data); | |
| 528 } else { | |
| 529 url = getScalerUrl(data); | |
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530 } |
| 696 | 531 if (noprompt == null) { |
| 532 window.prompt("URL reference to the current view", url); | |
| 533 } | |
| 534 return url; | |
| 535 }, | |
| 703 | 536 |
| 696 | 537 // set image quality |
| 538 setquality : function (data, qual) { | |
| 539 var oldq = getQuality(data); | |
| 540 if (qual == null) { | |
| 541 qual = window.prompt("Image quality (0..2)", oldq); | |
| 542 } | |
| 543 qual = parseInt(qual, 10); | |
| 544 if (qual >= 0 && qual <= 2) { | |
| 545 setQuality(data, qual); | |
| 546 redisplay(data); | |
| 547 } | |
| 661 | 548 } |
| 598 | 549 }; |
| 597 | 550 |
| 601 | 551 // returns parameters from page url |
| 600 | 552 var parseQueryParams = function() { |
| 629 | 553 return parseQueryString(window.location.search.slice(1)); |
| 554 }; | |
| 648 | 555 |
| 629 | 556 // returns parameters from embedded img-element |
| 600 | 557 var parseImgParams = function($elem) { |
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558 var src = $elem.find('img').first().attr('src'); |
| 703 | 559 if (!src) return null; |
| 600 | 560 var pos = src.indexOf('?'); |
| 561 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 562 var scalerUrl = src.substring(0, pos); | |
| 620 | 563 var params = parseQueryString(query); |
| 564 params.scalerBaseUrl = scalerUrl; | |
| 565 return params; | |
| 629 | 566 }; |
| 600 | 567 |
| 601 | 568 // parses query parameter string into parameter object |
| 600 | 569 var parseQueryString = function(query) { |
| 694 | 570 var params = {}; |
| 571 if (query == null) return params; | |
| 600 | 572 var pairs = query.split("&"); |
| 629 | 573 //var keys = []; |
| 600 | 574 for (var i = 0; i < pairs.length; i++) { |
| 575 var pair = pairs[i].split("="); | |
| 576 if (pair.length === 2) { | |
| 620 | 577 params[pair[0]] = pair[1]; |
| 629 | 578 //keys.push(pair[0]); |
| 627 | 579 } |
| 629 | 580 } |
| 620 | 581 return params; |
| 629 | 582 }; |
| 661 | 583 |
| 636 | 584 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 585 var getParamString = function (settings, keys, defaults) { | |
| 608 | 586 var paramString = ''; |
| 643 | 587 var nx = false; |
| 608 | 588 for (i = 0; i < keys.length; ++i) { |
| 589 var key = keys[i]; | |
| 656 | 590 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 608 | 591 // first param gets no '&' |
| 643 | 592 if (nx) { |
| 593 paramString += '&'; | |
| 594 } else { | |
| 595 nx = true; | |
| 596 } | |
| 608 | 597 // add parm=val |
| 598 paramString += key + '=' + settings[key]; | |
| 636 | 599 } |
| 608 | 600 } |
| 601 return paramString; | |
| 624 | 602 }; |
| 603 | |
| 629 | 604 // returns URL and query string for Scaler |
| 605 var getScalerUrl = function (data) { | |
| 646 | 606 var settings = data.settings; |
| 645 | 607 if (settings.scalerBaseUrl == null) { |
| 608 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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609 } |
| 658 | 610 packParams(data); |
| 629 | 611 var keys = settings.scalerParamNames; |
| 636 | 612 var queryString = getParamString(settings, keys, defaults); |
| 629 | 613 var url = settings.scalerBaseUrl + '?' + queryString; |
| 614 return url; | |
| 615 }; | |
| 616 | |
| 617 // returns URL and query string for current digilib | |
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618 var getDigilibUrl = function (data) { |
| 636 | 619 packParams(data); |
| 629 | 620 var settings = data.settings; |
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621 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 629 | 622 var url = window.location.toString(); |
| 623 var pos = url.indexOf('?'); | |
| 624 var baseUrl = url.substring(0, pos); | |
| 625 var newurl = baseUrl + '?' + queryString; | |
| 626 return newurl; | |
| 627 }; | |
| 628 | |
| 648 | 629 // processes some parameters into objects and stuff |
| 624 | 630 var unpackParams = function (data) { |
| 631 var settings = data.settings; | |
| 629 | 632 // zoom area |
| 624 | 633 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 636 | 634 data.zoomArea = zoomArea; |
| 629 | 635 // marks |
| 624 | 636 var marks = []; |
| 643 | 637 if (settings.mk) { |
| 638 var mk = settings.mk; | |
| 639 if (mk.indexOf(";") >= 0) { | |
| 640 var pa = mk.split(";"); // old format with ";" | |
| 641 } else { | |
| 642 var pa = mk.split(","); // new format | |
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643 } |
| 643 | 644 for (var i = 0; i < pa.length ; i++) { |
| 645 var pos = pa[i].split("/"); | |
| 646 if (pos.length > 1) { | |
| 647 marks.push(geom.position(pos[0], pos[1])); | |
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648 } |
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649 } |
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650 } |
| 636 | 651 data.marks = marks; |
| 643 | 652 // mo (Scaler flags) |
| 653 var flags = {}; | |
| 654 if (settings.mo) { | |
| 655 var pa = settings.mo.split(","); | |
| 656 for (var i = 0; i < pa.length ; i++) { | |
| 657 flags[pa[i]] = pa[i]; | |
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658 } |
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659 } |
| 643 | 660 data.scalerFlags = flags; |
| 702 | 661 retrieveOptionsCookie(data); |
| 648 | 662 }; |
| 663 | |
| 624 | 664 // put objects back into parameters |
| 665 var packParams = function (data) { | |
| 666 var settings = data.settings; | |
| 629 | 667 // zoom area |
| 636 | 668 if (data.zoomArea) { |
| 640 | 669 settings.wx = cropFloat(data.zoomArea.x); |
| 670 settings.wy = cropFloat(data.zoomArea.y); | |
| 671 settings.ww = cropFloat(data.zoomArea.width); | |
| 672 settings.wh = cropFloat(data.zoomArea.height); | |
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673 } |
| 629 | 674 // marks |
| 636 | 675 if (data.marks) { |
| 643 | 676 settings.mk = ''; |
| 636 | 677 for (var i = 0; i < data.marks.length; i++) { |
| 643 | 678 if (i) { |
| 679 settings.mk += ','; | |
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680 } |
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681 settings.mk += cropFloat(data.marks[i].x).toString() + |
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682 '/' + cropFloat(data.marks[i].y).toString(); |
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683 } |
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684 } |
| 643 | 685 // Scaler flags |
| 686 if (data.scalerFlags) { | |
| 687 var mo = ''; | |
| 688 for (var f in data.scalerFlags) { | |
| 689 if (mo) { | |
| 690 mo += ','; | |
| 691 } | |
| 692 mo += f; | |
| 693 } | |
| 694 settings.mo = mo; | |
| 695 } | |
| 703 | 696 // user interface options |
| 702 | 697 storeOptionsCookie(data); |
| 698 }; | |
| 681 | 699 |
| 702 | 700 var storeOptionsCookie = function (data) { |
| 694 | 701 // save digilib options in cookie |
| 702 | 702 // TODO: in embedded mode this is not called |
| 694 | 703 /* store in parameter clop |
| 704 * if (data.dlOpts) { | |
| 705 var clop = ''; | |
| 706 for (var o in data.dlOpts) { | |
| 707 if (clop) { | |
| 643 | 708 clop += ','; |
| 709 } | |
| 710 clop += o; | |
| 711 } | |
| 712 settings.clop = clop; | |
| 694 | 713 } */ |
| 702 | 714 var settings = data.settings; |
| 715 if (data.dlOpts) { | |
| 716 // save digilib settings in options | |
| 717 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
| 718 data.dlOpts.buttons = settings.visibleButtonSets; | |
| 719 var clop = ''; | |
| 720 for (var o in data.dlOpts) { | |
| 721 if (clop) { | |
| 722 clop += '&'; | |
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723 } |
| 702 | 724 clop += o + '=' + data.dlOpts[o]; |
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725 } |
| 702 | 726 if (jQuery.cookie) { |
| 727 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 728 console.debug("set cookie=", ck, " value=", clop); | |
| 729 jQuery.cookie(ck, clop); | |
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730 } |
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731 } |
| 624 | 732 }; |
| 648 | 733 |
| 702 | 734 var retrieveOptionsCookie = function (data) { |
| 735 // clop (digilib options) | |
| 736 var opts = {}; | |
| 737 var settings = data.settings; | |
| 738 if (jQuery.cookie) { | |
| 739 /* read from parameter clop | |
| 740 * if (settings.clop) { | |
| 741 var pa = settings.clop.split(","); | |
| 742 for (var i = 0; i < pa.length ; i++) { | |
| 743 opts[pa[i]] = pa[i]; | |
| 744 } | |
| 745 } */ | |
| 746 // read from cookie | |
| 747 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 748 var cp = jQuery.cookie(ck); | |
| 749 console.debug("get cookie=", ck, " value=", cp); | |
| 750 // in query string format | |
| 751 opts = parseQueryString(cp); | |
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752 } |
| 702 | 753 data.dlOpts = opts; |
| 754 // birdview option | |
| 755 if (opts.birdview != null) { | |
| 756 settings.isBirdDivVisible = opts.birdview === '1'; | |
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757 } |
| 702 | 758 // visible button sets |
| 759 if (opts.buttons != null) { | |
| 760 settings.visibleButtonSets = opts.buttons; | |
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761 } |
| 704 | 762 }; |
| 702 | 763 |
| 681 | 764 // clear digilib data for reset |
| 765 var resetData = function (data) { | |
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766 // TODO: we should reset instead of delete |
| 681 | 767 if (data.zoomArea) delete data.zoomArea; |
| 768 if (data.marks) delete data.marks; | |
| 769 if (data.scalerFlags) delete data.scalerFlags; | |
| 770 }; | |
| 771 | |
| 615 | 772 // (re)load the img from a new scaler URL |
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773 var redisplay = function (data) { |
| 629 | 774 var settings = data.settings; |
| 775 if (settings.interactionMode === 'fullscreen') { | |
| 776 // update location.href (browser URL) in fullscreen mode | |
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777 var url = getDigilibUrl(data); |
| 629 | 778 var history = window.history; |
| 779 if (typeof(history.pushState) === 'function') { | |
| 780 console.debug("we could modify history, but we don't..."); | |
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781 } |
| 629 | 782 window.location = url; |
| 783 } else { | |
| 784 // embedded mode -- just change img src | |
| 785 var url = getScalerUrl(data); | |
| 786 data.$img.attr('src', url); | |
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787 // load new bird img (in case the scalerUrl has changed, like in gotopage) |
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788 showBirdDiv(data); |
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789 } |
| 615 | 790 }; |
| 791 | |
| 655 | 792 // returns maximum size for scaler img in fullscreen mode |
| 793 var getFullscreenImgSize = function($elem) { | |
| 794 var $win = $(window); | |
| 795 var winH = $win.height(); | |
| 796 var winW = $win.width(); | |
| 797 // TODO: account for borders? | |
| 798 return geom.size(winW, winH); | |
| 799 }; | |
| 800 | |
| 601 | 801 // creates HTML structure for digilib in elem |
| 620 | 802 var setupScalerDiv = function (data) { |
| 803 var settings = data.settings; | |
| 640 | 804 var $elem = data.$elem; |
| 679 | 805 var $img, scalerUrl; |
| 806 // fullscreen | |
| 601 | 807 if (settings.interactionMode === 'fullscreen') { |
| 602 | 808 var imgSize = getFullscreenImgSize($elem); |
| 643 | 809 // fitwidth/height omits destination height/width |
| 708 | 810 // if (data.dlOpts['fitheight'] !== '1') { |
| 811 if (data.dlOpts['fitheight'] == null) { | |
| 643 | 812 settings.dw = imgSize.width; |
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813 } |
| 708 | 814 // if (data.dlOpts['fitwidth'] !== '1') { |
| 815 if (data.dlOpts['fitwidth'] == null) { | |
| 643 | 816 settings.dh = imgSize.height; |
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817 } |
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818 $img = $('<img/>'); |
| 679 | 819 scalerUrl = getScalerUrl(data); |
| 820 // embedded mode -- try to keep img tag | |
| 602 | 821 } else { |
| 616 | 822 $img = $elem.find('img'); |
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823 if ($img.length > 0) { |
| 679 | 824 console.debug("img detach:", $img); |
| 825 scalerUrl = $img.attr('src'); | |
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826 $img.detach(); |
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827 } else { |
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828 $img = $('<img/>'); |
| 679 | 829 scalerUrl = getScalerUrl(data); |
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830 } |
| 601 | 831 } |
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832 // create new html |
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833 $elem.empty(); // TODO: should we keep stuff for customization? |
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834 var $scaler = $('<div class="scaler"/>'); |
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835 $elem.append($scaler); |
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836 $scaler.append($img); |
| 615 | 837 $img.addClass('pic'); |
| 642 | 838 data.$scaler = $scaler; |
| 629 | 839 data.$img = $img; |
| 680 | 840 // setup image load handler before setting the src attribute (IE bug) |
| 841 $img.load(scalerImgLoadedHandler(data)); | |
| 842 $img.attr('src', scalerUrl); | |
| 708 | 843 // set scaler div size explicitly in case $img is hidden (for zoomDrag) |
| 844 $imgRect = geom.rectangle($img); | |
| 845 $imgRect.adjustDiv(data.$scaler); | |
| 601 | 846 }; |
| 608 | 847 |
| 603 | 848 // creates HTML structure for buttons in elem |
| 690 | 849 var createButtons = function (data, buttonSetIdx) { |
| 640 | 850 var $elem = data.$elem; |
|
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851 var settings = data.settings; |
| 658 | 852 var mode = settings.interactionMode; |
|
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853 var buttonSettings = settings.buttonSettings[mode]; |
| 675 | 854 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
| 683 | 855 if (buttonGroup == null) { |
| 856 // no buttons here | |
| 857 return; | |
| 858 } | |
| 859 var $buttonsDiv = $('<div class="buttons"/>'); | |
| 675 | 860 var buttonNames = buttonSettings[buttonGroup]; |
| 861 for (var i = 0; i < buttonNames.length; i++) { | |
| 862 var buttonName = buttonNames[i]; | |
| 863 var buttonConfig = settings.buttons[buttonName]; | |
| 658 | 864 // construct the button html |
| 865 var $button = $('<div class="button"></div>'); | |
| 866 var $a = $('<a/>'); | |
| 867 var $img = $('<img class="button"/>'); | |
| 868 $buttonsDiv.append($button); | |
| 869 $button.append($a); | |
| 870 $a.append($img); | |
| 871 // add attributes and bindings | |
| 872 $button.attr('title', buttonConfig.tooltip); | |
| 675 | 873 $button.addClass('button-' + buttonName); |
| 658 | 874 // create handler for the buttons |
| 875 $a.bind('click.digilib', (function () { | |
| 876 // we create a new closure to capture the value of action | |
| 877 var action = buttonConfig.onclick; | |
| 878 if ($.isArray(action)) { | |
| 879 // the handler function calls digilib with action and parameters | |
| 880 return function (evt) { | |
| 881 console.debug('click action=', action, ' evt=', evt); | |
| 882 $elem.digilib.apply($elem, action); | |
| 883 return false; | |
| 884 }; | |
| 885 } else { | |
| 886 // the handler function calls digilib with action | |
| 887 return function (evt) { | |
| 888 console.debug('click action=', action, ' evt=', evt); | |
| 889 $elem.digilib(action); | |
| 890 return false; | |
| 891 }; | |
| 892 } | |
| 893 })()); | |
| 894 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
| 683 | 895 } |
| 655 | 896 // make buttons div scroll if too large for window |
| 897 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 898 $buttonsDiv.css('position', 'absolute'); | |
| 899 } | |
| 690 | 900 // buttons hidden at first |
| 901 $buttonsDiv.hide(); | |
| 902 $elem.append($buttonsDiv); | |
| 675 | 903 if (data.$buttonSets == null) { |
| 690 | 904 // first button set |
| 675 | 905 data.$buttonSets = [$buttonsDiv]; |
| 906 } else { | |
| 683 | 907 $elem.append($buttonsDiv); |
| 675 | 908 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
| 909 } | |
| 605 | 910 return $buttonsDiv; |
| 603 | 911 }; |
| 608 | 912 |
| 913 // creates HTML structure for the bird's eye view in elem | |
| 631 | 914 var setupBirdDiv = function (data) { |
| 640 | 915 var $elem = data.$elem; |
| 608 | 916 // the bird's eye div |
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917 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 608 | 918 // the detail indicator frame |
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919 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
| 608 | 920 // the small image |
| 921 var $birdImg = $('<img class="birdimg"/>'); | |
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922 $elem.append($birdDiv); |
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923 $birdDiv.append($birdZoom); |
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924 $birdDiv.append($birdImg); |
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925 $birdZoom.css(data.settings.birdIndicatorStyle); |
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926 data.$birdDiv = $birdDiv; |
|
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927 data.$birdZoom = $birdZoom; |
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928 data.$birdImg = $birdImg; |
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929 $birdImg.load(birdImgLoadedHandler(data)); |
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930 showBirdDiv(data); |
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931 birdZoom(data); |
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932 }; |
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933 |
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934 // puts correct img into bird div |
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935 var showBirdDiv = function (data) { |
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936 var settings = data.settings; |
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937 var $birdImg = data.$birdImg; |
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938 var $birdDiv = data.$birdDiv; |
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939 var birdDivOptions = { |
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940 dw : settings.birdDivWidth, |
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941 dh : settings.birdDivHeight |
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942 }; |
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943 var birdSettings = $.extend({}, settings, birdDivOptions); |
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944 // use only the relevant parameters |
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945 var birdUrl = settings.scalerBaseUrl + '?' |
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946 + getParamString(birdSettings, settings.birdDivParams); |
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947 // the bird's eye div |
| 608 | 948 $birdImg.attr('src', birdUrl); |
|
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949 if (settings.isBirdDivVisible) { |
| 680 | 950 $birdDiv.show(); |
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951 } |
|
633
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952 }; |
|
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953 |
| 608 | 954 |
| 618 | 955 // creates HTML structure for the about view in elem |
|
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956 var setupAboutDiv = function (data) { |
| 640 | 957 var $elem = data.$elem; |
|
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958 var settings = data.settings; |
| 618 | 959 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 609 | 960 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 961 var $link = $('<a/>'); | |
| 962 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 963 var $content = $('<p/>'); | |
| 964 $elem.append($aboutDiv); | |
| 965 $aboutDiv.append($header); | |
| 966 $aboutDiv.append($link); | |
| 967 $aboutDiv.append($content); | |
| 968 $link.append($logo); | |
| 969 $logo.attr('src', settings.logoUrl); | |
| 628 | 970 $link.attr('href', settings.homeUrl); |
| 609 | 971 $content.text('Version: ' + settings.version); |
| 628 | 972 // click hides |
| 642 | 973 $aboutDiv.bind('click.digilib', function () { |
| 639 | 974 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 642 | 975 return false; |
| 703 | 976 }); |
| 628 | 977 data.$aboutDiv = $aboutDiv; |
| 627 | 978 }; |
| 979 | |
| 628 | 980 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 981 var showDiv = function (isVisible, $div, show) { | |
| 638 | 982 if (show == null) { |
| 628 | 983 // toggle visibility |
| 984 isVisible = !isVisible; | |
| 985 } else { | |
| 986 // set visibility | |
| 987 isVisible = show; | |
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988 } |
| 628 | 989 if (isVisible) { |
| 990 $div.fadeIn(); | |
| 991 } else { | |
| 992 $div.fadeOut(); | |
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993 } |
| 628 | 994 return isVisible; |
| 627 | 995 }; |
| 609 | 996 |
| 690 | 997 // display more (or less) button sets |
| 998 var showButtons = function (data, more, setIdx, animated) { | |
| 704 | 999 var atime = animated ? 'fast': 0; |
| 690 | 1000 if (more) { |
| 1001 // add set | |
| 1002 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 1003 var $set; | |
| 1004 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
| 1005 // set exists | |
| 1006 $set = data.$buttonSets[setIdx]; | |
| 1007 } else { | |
| 1008 $set = createButtons(data, setIdx); | |
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1009 } |
| 690 | 1010 if ($set == null) return false; |
| 1011 var btnWidth = $set.width(); | |
| 1012 // move remaining sets left and show new set | |
| 704 | 1013 if ($otherSets.length > 0) { |
| 1014 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
| 1015 function () {$set.show();}); | |
| 690 | 1016 } else { |
| 1017 $set.show(); | |
| 704 | 1018 } |
| 690 | 1019 } else { |
| 1020 // remove set | |
| 1021 var $set = data.$buttonSets[setIdx]; | |
| 1022 if ($set == null) return false; | |
| 1023 var btnWidth = $set.width(); | |
| 1024 // hide last set | |
| 1025 $set.hide(); | |
| 1026 // take remaining sets and move right | |
| 1027 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 704 | 1028 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
| 1029 } | |
| 690 | 1030 return true; |
| 1031 }; | |
| 1032 | |
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1033 // create Transform from area and $img |
| 668 | 1034 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
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1035 var picrect = geom.rectangle($img); |
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1036 var trafo = geom.transform(); |
| 668 | 1037 // move zoom area offset to center |
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1038 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 668 | 1039 // scale zoom area size to [1,1] |
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1040 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 668 | 1041 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 1042 if (rot || hmir || vmir) { | |
| 1043 // move [0.5,0.5] to center | |
| 1044 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 1045 if (hmir) { | |
| 1046 // mirror about center | |
| 1047 trafo.concat(trafo.getMirror('y')); | |
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1048 } |
| 668 | 1049 if (vmir) { |
| 1050 // mirror about center | |
| 1051 trafo.concat(trafo.getMirror('x')); | |
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1052 } |
| 668 | 1053 if (rot) { |
| 1054 // rotate around center | |
| 1055 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
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1056 } |
| 668 | 1057 // move back |
| 1058 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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1059 } |
|
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1060 // scale to screen position and size |
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1061 trafo.concat(trafo.getScale(picrect)); |
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1062 trafo.concat(trafo.getTranslation(picrect)); |
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1063 return trafo; |
| 648 | 1064 }; |
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1065 |
|
606
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1066 // returns function for load event of scaler img |
| 629 | 1067 var scalerImgLoadedHandler = function (data) { |
|
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1068 var $img = data.$img; |
| 626 | 1069 return function () { |
| 620 | 1070 console.debug("img loaded! this=", this, " data=", data); |
| 1071 // create Transform from current area and picsize | |
| 668 | 1072 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
| 1073 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
| 679 | 1074 console.debug("imgTrafo=", data.imgTrafo); |
| 713 | 1075 // set scaler div size explicitly in case $img is hidden (for zoomDrag) |
| 1076 var $imgRect = geom.rectangle(data.$img); | |
| 1077 console.debug("imgrect=", $imgRect); | |
| 1078 $imgRect.adjustDiv(data.$scaler); | |
| 708 | 1079 // show image in case it was hidden (for example in zoomDrag) |
| 1080 $img.show(); | |
| 620 | 1081 // display marks |
| 626 | 1082 renderMarks(data); |
|
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1083 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation |
|
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1084 var $birdImg = data.$birdImg; |
| 698 | 1085 // should the birdview adapt to mirror or rotation? decision: No. :-) |
|
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1086 if ($birdImg) { |
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1087 $birdImg.triggerHandler('load'); |
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1088 } |
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1089 }; |
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1090 }; |
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1091 |
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1092 // returns function for load event of bird's eye view img |
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1093 var birdImgLoadedHandler = function (data) { |
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1094 var $img = data.$birdImg; |
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1095 return function () { |
|
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1096 console.debug("birdimg loaded! this=", this, " data=", data); |
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1097 // create Transform from current area and picsize |
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1098 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
| 661 | 1099 // display red indicator around zoomarea |
|
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1100 renderbirdZoom(data); |
|
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1101 }; |
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1102 }; |
| 626 | 1103 |
| 1104 // place marks on the image | |
| 1105 var renderMarks = function (data) { | |
| 640 | 1106 var $elem = data.$elem; |
| 636 | 1107 var marks = data.marks; |
| 642 | 1108 // TODO: clear marks first(?) |
| 626 | 1109 for (var i = 0; i < marks.length; i++) { |
| 1110 var mark = marks[i]; | |
| 636 | 1111 if (data.zoomArea.containsPosition(mark)) { |
| 626 | 1112 var mpos = data.imgTrafo.transform(mark); |
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1113 console.debug("renderMarks: mpos=",mpos); |
| 626 | 1114 // create mark |
| 1115 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 1116 var $mark = $(html); | |
| 1117 $elem.append($mark); | |
| 647 | 1118 $mark.offset({left : mpos.x, top : mpos.y}); |
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1119 } |
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|
1120 } |
| 626 | 1121 }; |
| 648 | 1122 |
|
670
2ce9d77677b1
took renderBirdArea hooks out of scalerImgLoaded into redisplay.
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669
diff
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|
1123 // show zoom area indicator on bird's eye view |
|
671
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|
1124 var renderbirdZoom = function (data) { |
|
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|
1125 var $birdZoom = data.$birdZoom; |
| 652 | 1126 var zoomArea = data.zoomArea; |
| 1127 var indRect = data.birdTrafo.transform(zoomArea); | |
|
663
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|
1128 var coords = { |
|
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|
1129 left : indRect.x-2, // acount for frame width |
|
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|
1130 top : indRect.y-2, |
|
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|
1131 width : indRect.width, |
|
fda2d9bd9ba7
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|
1132 height: indRect.height |
|
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|
1133 }; |
|
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|
1134 var normalSize = isFullArea(zoomArea); |
|
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diff
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|
1135 if (data.settings.interactionMode === 'fullscreen') { |
|
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|
1136 // no animation for fullscreen |
|
671
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|
1137 if (normalSize) return $birdZoom.hide(); |
|
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|
1138 $birdZoom.width(coords.width); |
|
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|
1139 $birdZoom.height(coords.height); |
|
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|
1140 $birdZoom.offset(coords); |
|
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|
1141 $birdZoom.show(); |
|
663
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|
1142 return; |
|
706
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704
diff
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|
1143 } |
|
663
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|
1144 // nice animation for embedded mode :-) |
|
671
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|
1145 var makeCompleteFunction = function($birdZoom, normalSize) { |
|
663
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|
1146 return function() { |
|
671
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|
1147 if (normalSize) $birdZoom.hide(); |
|
665
0d3d9517e448
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664
diff
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|
1148 }; |
|
663
fda2d9bd9ba7
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|
1149 }; |
|
fda2d9bd9ba7
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|
1150 var opts = { |
|
671
ba582354e659
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|
1151 'complete' : makeCompleteFunction($birdZoom, normalSize) |
|
663
fda2d9bd9ba7
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diff
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|
1152 }; |
|
671
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|
1153 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
|
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diff
changeset
|
1154 $birdZoom.animate(coords, opts); |
|
657
b0c6cc4a0932
work on getting transformation to work with rotation (currently still doesn't)
robcast
parents:
656
diff
changeset
|
1155 }; |
| 652 | 1156 |
| 640 | 1157 // zooms by the given factor |
| 636 | 1158 var zoomBy = function(data, factor) { |
| 1159 var area = data.zoomArea; | |
| 1160 var newarea = area.copy(); | |
| 1161 // scale | |
| 1162 newarea.width /= factor; | |
| 1163 newarea.height /= factor; | |
| 1164 // and recenter | |
| 1165 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 1166 newarea.y -= 0.5 * (newarea.height - area.height); | |
| 1167 newarea = MAX_ZOOMAREA.fit(newarea); | |
| 1168 data.zoomArea = newarea; | |
|
637
71cc855e2e4b
reload doesn't take list of changed parameters any more
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diff
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|
1169 redisplay(data); |
| 636 | 1170 }; |
| 1171 | |
| 640 | 1172 // add a mark where clicked |
| 1173 var setMark = function (data) { | |
| 642 | 1174 var $scaler = data.$scaler; |
| 640 | 1175 // start event capturing |
| 642 | 1176 $scaler.one('click.digilib', function (evt) { |
| 640 | 1177 // event handler adding a new mark |
|
665
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diff
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|
1178 var mpos = geom.position(evt); |
| 640 | 1179 var pos = data.imgTrafo.invtransform(mpos); |
| 1180 data.marks.push(pos); | |
| 1181 redisplay(data); | |
| 642 | 1182 return false; // do we even get here? |
| 640 | 1183 }); |
| 1184 }; | |
| 661 | 1185 |
| 647 | 1186 var zoomArea = function(data) { |
| 1187 $elem = data.$elem; | |
| 1188 $scaler = data.$scaler; | |
| 1189 var pt1, pt2; | |
| 1190 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 1191 $elem.append($zoomDiv); | |
| 661 | 1192 $zoomDiv.css(data.settings.zoomrectStyle); |
| 647 | 1193 var picRect = geom.rectangle($scaler); |
| 1194 // FIX ME: is there a way to query the border width from CSS info? | |
| 1195 // rect.x -= 2; // account for overlay borders | |
| 1196 // rect.y -= 2; | |
| 1197 | |
| 1198 var zoomStart = function (evt) { | |
| 1199 pt1 = geom.position(evt); | |
| 1200 // setup and show zoom div | |
| 1201 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
| 1202 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
| 661 | 1203 $zoomDiv.width(0).height(0); |
| 647 | 1204 $zoomDiv.show(); |
| 1205 // register events | |
| 1206 $elem.bind("mousemove.digilib", zoomMove); | |
| 1207 $elem.bind("mouseup.digilib", zoomEnd); | |
| 1208 return false; | |
| 1209 }; | |
| 661 | 1210 |
| 647 | 1211 // mouseup handler: end moving |
| 1212 var zoomEnd = function (evt) { | |
| 1213 pt2 = geom.position(evt); | |
| 1214 // assume a click and continue if the area is too small | |
| 1215 var clickRect = geom.rectangle(pt1, pt2); | |
| 703 | 1216 if (clickRect.getArea() <= 5) return false; |
| 647 | 1217 // hide zoom div |
| 1218 $zoomDiv.remove(); | |
| 1219 // unregister events | |
| 1220 $elem.unbind("mousemove.digilib", zoomMove); | |
| 1221 $elem.unbind("mouseup.digilib", zoomEnd); | |
| 1222 // clip and transform | |
| 1223 clickRect.clipTo(picRect); | |
| 1224 var area = data.imgTrafo.invtransform(clickRect); | |
| 1225 data.zoomArea = area; | |
| 1226 // zoomed is always fit | |
| 1227 data.settings.ws = 1; | |
| 1228 redisplay(data); | |
| 1229 return false; | |
| 1230 }; | |
| 661 | 1231 |
| 647 | 1232 // mouse move handler |
| 1233 var zoomMove = function (evt) { | |
| 1234 pt2 = geom.position(evt); | |
| 1235 var rect = geom.rectangle(pt1, pt2); | |
| 1236 rect.clipTo(picRect); | |
| 1237 // update zoom div | |
|
665
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robcast
parents:
664
diff
changeset
|
1238 rect.adjustDiv($zoomDiv); |
| 647 | 1239 return false; |
| 1240 }; | |
| 661 | 1241 |
| 647 | 1242 // bind start zoom handler |
| 1243 $scaler.one('mousedown.digilib', zoomStart); | |
| 1244 }; | |
| 640 | 1245 |
|
671
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diff
changeset
|
1246 var birdZoom = function(data) { |
|
ba582354e659
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diff
changeset
|
1247 var $birdImg = data.$birdImg; |
|
ba582354e659
first step at dragging birdview zoom indicator around
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670
diff
changeset
|
1248 var $birdZoom = data.$birdZoom; |
|
ba582354e659
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parents:
670
diff
changeset
|
1249 var startPos, newRect, birdImgRect, birdZoomRect; |
|
ba582354e659
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diff
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|
1250 |
|
ba582354e659
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diff
changeset
|
1251 var birdZoomMove = function(evt) { |
|
ba582354e659
first step at dragging birdview zoom indicator around
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parents:
670
diff
changeset
|
1252 // mousemove handler: drag |
|
ba582354e659
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parents:
670
diff
changeset
|
1253 var pos = geom.position(evt); |
|
ba582354e659
first step at dragging birdview zoom indicator around
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parents:
670
diff
changeset
|
1254 var dx = pos.x - startPos.x; |
|
ba582354e659
first step at dragging birdview zoom indicator around
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parents:
670
diff
changeset
|
1255 var dy = pos.y - startPos.y; |
|
ba582354e659
first step at dragging birdview zoom indicator around
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parents:
670
diff
changeset
|
1256 // move birdZoom div, keeping size |
|
ba582354e659
first step at dragging birdview zoom indicator around
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parents:
670
diff
changeset
|
1257 newRect = geom.rectangle( |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1258 birdZoomRect.x + dx, |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1259 birdZoomRect.y + dy, |
|
ba582354e659
first step at dragging birdview zoom indicator around
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parents:
670
diff
changeset
|
1260 birdZoomRect.width, |
|
706
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1261 birdZoomRect.height); |
|
671
ba582354e659
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670
diff
changeset
|
1262 // stay within birdimage |
|
ba582354e659
first step at dragging birdview zoom indicator around
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diff
changeset
|
1263 newRect.stayInside(birdImgRect); |
|
ba582354e659
first step at dragging birdview zoom indicator around
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670
diff
changeset
|
1264 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
|
ba582354e659
first step at dragging birdview zoom indicator around
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parents:
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diff
changeset
|
1265 // $birdZoom.show(); |
|
ba582354e659
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diff
changeset
|
1266 return false; |
|
ba582354e659
first step at dragging birdview zoom indicator around
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parents:
670
diff
changeset
|
1267 }; |
|
ba582354e659
first step at dragging birdview zoom indicator around
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diff
changeset
|
1268 |
|
ba582354e659
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parents:
670
diff
changeset
|
1269 var birdZoomEndDrag = function(evt) { |
|
ba582354e659
first step at dragging birdview zoom indicator around
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parents:
670
diff
changeset
|
1270 // mouseup handler: reload page |
|
ba582354e659
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diff
changeset
|
1271 var settings = data.settings; |
| 673 | 1272 $(document).unbind("mousemove.digilib", birdZoomMove); |
| 1273 $(document).unbind("mouseup.digilib", birdZoomEndDrag); | |
| 1274 $birdZoom.unbind("mousemove.digilib", birdZoomMove); | |
| 1275 $birdZoom.unbind("mouseup.digilib", birdZoomEndDrag); | |
|
671
ba582354e659
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diff
changeset
|
1276 if (newRect == null) { // no movement happened |
|
ba582354e659
first step at dragging birdview zoom indicator around
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670
diff
changeset
|
1277 startPos = birdZoomRect.getCenter(); |
|
ba582354e659
first step at dragging birdview zoom indicator around
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parents:
670
diff
changeset
|
1278 birdZoomMove(evt); // set center to click position |
|
706
498f9c7487ae
more cosmetics: added options to validate with http://www.jslint.com
robcast
parents:
704
diff
changeset
|
1279 } |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
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diff
changeset
|
1280 if (data.zoomArea) { |
| 672 | 1281 // should always be true |
| 1282 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
| 1283 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
| 1284 data.zoomArea.x = x; | |
| 1285 data.zoomArea.y = y; | |
|
706
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robcast
parents:
704
diff
changeset
|
1286 } |
|
671
ba582354e659
first step at dragging birdview zoom indicator around
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670
diff
changeset
|
1287 settings.ws = 1; // zoomed is always fit |
|
ba582354e659
first step at dragging birdview zoom indicator around
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parents:
670
diff
changeset
|
1288 redisplay(data); |
|
ba582354e659
first step at dragging birdview zoom indicator around
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parents:
670
diff
changeset
|
1289 return false; |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
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670
diff
changeset
|
1290 }; |
|
ba582354e659
first step at dragging birdview zoom indicator around
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diff
changeset
|
1291 |
|
ba582354e659
first step at dragging birdview zoom indicator around
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parents:
670
diff
changeset
|
1292 var birdZoomStartDrag = function(evt) { |
|
ba582354e659
first step at dragging birdview zoom indicator around
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parents:
670
diff
changeset
|
1293 // mousedown handler: start dragging bird zoom to a new position |
|
ba582354e659
first step at dragging birdview zoom indicator around
hertzhaft
parents:
670
diff
changeset
|
1294 startPos = geom.position(evt); |
|
ba582354e659
first step at dragging birdview zoom indicator around
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diff
changeset
|
1295 birdImgRect = geom.rectangle($birdImg); |
|
ba582354e659
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parents:
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diff
changeset
|
1296 birdZoomRect = geom.rectangle($birdZoom); |
| 673 | 1297 $(document).bind("mousemove.digilib", birdZoomMove); |
| 1298 $(document).bind("mouseup.digilib", birdZoomEndDrag); | |
| 1299 $birdZoom.bind("mousemove.digilib", birdZoomMove); | |
| 1300 $birdZoom.bind("mouseup.digilib", birdZoomEndDrag); | |
|
671
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diff
changeset
|
1301 return false; |
|
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diff
changeset
|
1302 }; |
|
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parents:
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diff
changeset
|
1303 |
| 674 | 1304 $birdImg.bind("mousedown.digilib", birdZoomStartDrag); |
| 1305 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag); | |
|
671
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parents:
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diff
changeset
|
1306 }; |
|
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diff
changeset
|
1307 |
| 698 | 1308 var setupZoomDrag = function(data) { |
| 1309 // setup handlers for dragging the zoomed image | |
| 1310 var pt1, pt2; | |
| 1311 var dx = 0; | |
| 1312 var dy = 0; | |
| 1313 var $elem = data.$elem; | |
| 1314 var $scaler = data.$scaler; | |
| 1315 var $img = data.$img; | |
| 703 | 1316 |
| 698 | 1317 var dragStart = function (evt) { |
| 1318 // drag the image and load a new detail on mouse up | |
| 1319 // useless if not zoomed | |
| 1320 if (isFullArea(data.zoomArea)) return false; | |
| 1321 pt1 = geom.position(evt); | |
| 1322 $imgRect = geom.rectangle($img); | |
| 708 | 1323 // keep scaler div size while $img is hidden (for embedded mode) |
| 1324 $imgRect.adjustDiv($scaler); | |
| 698 | 1325 // hide the scaler image, show it as background of div instead |
| 708 | 1326 $scaler.css({ |
| 698 | 1327 'background-image' : 'url(' + $img.attr('src') + ')', |
| 1328 'background-repeat' : 'no-repeat', | |
| 699 | 1329 'background-position' : 'top left', |
| 698 | 1330 'cursor' : 'move' |
| 1331 }); | |
| 1332 $img.hide(); | |
| 1333 $(document).bind("mousemove.digilib", dragMove); | |
| 1334 $(document).bind("mouseup.digilib", dragEnd); | |
|
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diff
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|
1335 return false; |
| 698 | 1336 }; |
| 703 | 1337 |
| 698 | 1338 var dragMove = function (evt) { |
| 708 | 1339 // mousemove handler: drag zoomed image |
| 698 | 1340 var pos = geom.position(evt); |
| 1341 dx = pos.x - pt1.x; | |
| 1342 dy = pos.y - pt1.y; | |
| 1343 // move the background image to the new position | |
| 708 | 1344 $scaler.css({ |
| 698 | 1345 'background-position' : dx + "px " + dy + "px" |
| 1346 }); | |
| 1347 return false; | |
| 1348 }; | |
| 703 | 1349 |
| 698 | 1350 var dragEnd = function (evt) { |
| 708 | 1351 // mouseup handler: reload zoomed image in new position |
| 1352 $scaler.css({ | |
| 698 | 1353 'cursor' : 'default' |
| 1354 }); | |
| 1355 $(document).unbind("mousemove.digilib", dragMove); | |
| 1356 $(document).unbind("mouseup.digilib", dragEnd); | |
| 1357 // calculate relative offset | |
|
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diff
changeset
|
1358 if (dx === 0 && dy === 0) return false; // no movement |
| 698 | 1359 // reload with scaler image showing the new ausschnitt |
|
701
2660b733a1e7
img reload works for fullscreen, but somehow not precise
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parents:
700
diff
changeset
|
1360 // digilib.moveBy(x, y); |
|
2660b733a1e7
img reload works for fullscreen, but somehow not precise
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diff
changeset
|
1361 var pos = geom.position(-dx, -dy); |
|
2660b733a1e7
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diff
changeset
|
1362 var newPos = data.imgTrafo.invtransform(pos); |
|
2660b733a1e7
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diff
changeset
|
1363 var newArea = data.zoomArea.setPt1(newPos); |
|
2660b733a1e7
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diff
changeset
|
1364 data.zoomArea = MAX_ZOOMAREA.fit(newArea); |
|
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diff
changeset
|
1365 redisplay(data); |
| 698 | 1366 return false; |
| 1367 }; | |
| 1368 | |
| 1369 $scaler.bind("mousedown.digilib", dragStart); | |
| 1370 }; | |
| 1371 | |
| 696 | 1372 // get image quality as a number (0..2) |
| 1373 var getQuality = function (data) { | |
| 1374 var flags = data.scalerFlags; | |
| 1375 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
| 1376 return parseInt(q[1], 10); | |
| 699 | 1377 }; |
| 696 | 1378 |
| 1379 // set image quality as a number (0..2) | |
| 1380 var setQuality = function (data, qual) { | |
| 1381 var flags = data.scalerFlags; | |
| 1382 // clear flags | |
| 1383 for (var i = 0; i < 3; ++i) { | |
| 1384 delete flags['q'+i]; | |
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1385 } |
| 696 | 1386 flags['q'+qual] = 'q'+qual; |
| 699 | 1387 }; |
| 703 | 1388 |
| 643 | 1389 // sets a key to a value (relative values with +/- if relative=true) |
| 1390 var setNumValue = function(settings, key, value) { | |
| 709 | 1391 if (value == null) return null; |
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1392 if (isNumber(value)) { |
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1393 settings[key] = value; |
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1394 return value; |
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1395 } |
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1396 var sign = value[0]; |
| 643 | 1397 if (sign === '+' || sign === '-') { |
| 1398 if (settings[key] == null) { | |
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1399 // this isn't perfect but still... |
| 643 | 1400 settings[key] = 0; |
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1401 } |
| 643 | 1402 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
| 1403 } else { | |
| 1404 settings[key] = value; | |
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1405 } |
| 643 | 1406 return settings[key]; |
| 1407 }; | |
| 648 | 1408 |
| 1409 // auxiliary function (from old dllib.js) | |
| 652 | 1410 isFullArea = function(area) { |
| 1411 return (area.width === 1.0) && (area.height === 1.0); | |
| 648 | 1412 }; |
| 1413 | |
| 634 | 1414 // auxiliary function (from Douglas Crockford, A.10) |
| 1415 var isNumber = function isNumber(value) { | |
| 703 | 1416 return typeof value === 'number' && isFinite(value); |
| 634 | 1417 }; |
| 648 | 1418 |
| 624 | 1419 // auxiliary function to crop senseless precision |
| 1420 var cropFloat = function (x) { | |
| 630 | 1421 return parseInt(10000 * x, 10) / 10000; |
| 624 | 1422 }; |
| 648 | 1423 |
| 685 | 1424 // fallback for console.log calls |
| 1425 if (customConsole) { | |
| 1426 var logFunction = function(type) { | |
| 1427 return function(){ | |
| 1428 var $debug = $('#debug'); // debug div | |
| 1429 if (!$debug) return; | |
| 1430 var args = Array.prototype.slice.call(arguments); | |
| 1431 var argtext = args.join(' '); | |
| 1432 var $logDiv = $('<div/>'); | |
| 1433 $logDiv.addClass(type); | |
| 1434 $logDiv.text(argtext); | |
| 1435 $debug.append($logDiv); | |
| 1436 }; | |
| 1437 }; | |
| 1438 console.log = logFunction('_log'); | |
| 1439 console.debug = logFunction('_debug'); | |
| 1440 console.error = logFunction('_error'); | |
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1441 } |
| 685 | 1442 |
| 598 | 1443 // hook plugin into jquery |
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1444 $.fn.digilib = function(action) { |
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1445 if (actions[action]) { |
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1446 // call action on this with the remaining arguments (inserting data as first argument) |
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1447 var $elem = $(this); |
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1448 var data = $elem.data('digilib'); |
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1449 var args = Array.prototype.slice.call(arguments, 1); |
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1450 args.unshift(data); |
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1451 return actions[action].apply(this, args); |
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1452 } else if (typeof(action) === 'object' || !action) { |
| 627 | 1453 // call init on this |
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1454 return actions.init.apply(this, arguments); |
| 598 | 1455 } else { |
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1456 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
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1457 } |
| 598 | 1458 }; |
| 685 | 1459 |
| 597 | 1460 })(jQuery); |