| 1 | /* ***** BEGIN LICENSE BLOCK ***** |
| 2 | * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
| 3 | * |
| 4 | * The contents of this file are subject to the Mozilla Public License Version |
| 5 | * 1.1 (the "License"); you may not use this file except in compliance with |
| 6 | * the License. You may obtain a copy of the License at |
| 7 | * http://www.mozilla.org/MPL/ |
| 8 | * |
| 9 | * Software distributed under the License is distributed on an "AS IS" basis, |
| 10 | * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
| 11 | * for the specific language governing rights and limitations under the |
| 12 | * License. |
| 13 | * |
| 14 | * The Original Code is KaiRo.at Mandelbrot, XULRunner version. |
| 15 | * |
| 16 | * The Initial Developer of the Original Code is |
| 17 | * Robert Kaiser <kairo@kairo.at>. |
| 18 | * Portions created by the Initial Developer are Copyright (C) 2008 |
| 19 | * the Initial Developer. All Rights Reserved. |
| 20 | * |
| 21 | * Contributor(s): |
| 22 | * Robert Kaiser <kairo@kairo.at> |
| 23 | * |
| 24 | * Alternatively, the contents of this file may be used under the terms of |
| 25 | * either the GNU General Public License Version 2 or later (the "GPL"), or |
| 26 | * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
| 27 | * in which case the provisions of the GPL or the LGPL are applicable instead |
| 28 | * of those above. If you wish to allow use of your version of this file only |
| 29 | * under the terms of either the GPL or the LGPL, and not to allow others to |
| 30 | * use your version of this file under the terms of the MPL, indicate your |
| 31 | * decision by deleting the provisions above and replace them with the notice |
| 32 | * and other provisions required by the GPL or the LGPL. If you do not delete |
| 33 | * the provisions above, a recipient may use your version of this file under |
| 34 | * the terms of any one of the MPL, the GPL or the LGPL. |
| 35 | * |
| 36 | * ***** END LICENSE BLOCK ***** */ |
| 37 | |
| 38 | var gColorPalette = []; |
| 39 | var gPref = Components.classes["@mozilla.org/preferences-service;1"] |
| 40 | .getService(Components.interfaces.nsIPrefService) |
| 41 | .getBranch(null); |
| 42 | var gStartTime = 0; |
| 43 | |
| 44 | function Startup() { |
| 45 | updateIterMenu(); |
| 46 | updatePaletteMenu(); |
| 47 | document.getElementById("statusLabel").value = |
| 48 | document.getElementById("mbrotBundle").getString("statusEmpty"); |
| 49 | } |
| 50 | |
| 51 | function drawImage() { |
| 52 | let canvas = document.getElementById("mbrotImage"); |
| 53 | let context = canvas.getContext("2d"); |
| 54 | |
| 55 | document.getElementById("drawButton").hidden = true; |
| 56 | |
| 57 | document.getElementById("statusLabel").value = |
| 58 | document.getElementById("mbrotBundle").getString("statusDrawing"); |
| 59 | |
| 60 | let Cr_min = -2.0; |
| 61 | let Cr_max = 1.0; |
| 62 | try { |
| 63 | Cr_min = parseFloat(gPref.getCharPref("mandelbrot.last_image.Cr_min")); |
| 64 | Cr_max = parseFloat(gPref.getCharPref("mandelbrot.last_image.Cr_max")); |
| 65 | } |
| 66 | catch (e) { } |
| 67 | if ((Cr_min < -2) || (Cr_min > 2) || |
| 68 | (Cr_max < -2) || (Cr_max > 2) || (Cr_min >= Cr_max)) { |
| 69 | Cr_min = -2.0; Cr_max = 1.0; |
| 70 | } |
| 71 | gPref.setCharPref("mandelbrot.last_image.Cr_min", Cr_min); |
| 72 | gPref.setCharPref("mandelbrot.last_image.Cr_max", Cr_max); |
| 73 | |
| 74 | let Ci_min = -1.5; |
| 75 | let Ci_max = 1.5; |
| 76 | try { |
| 77 | Ci_min = parseFloat(gPref.getCharPref("mandelbrot.last_image.Ci_min")); |
| 78 | Ci_max = parseFloat(gPref.getCharPref("mandelbrot.last_image.Ci_max")); |
| 79 | } |
| 80 | catch (e) { } |
| 81 | if ((Ci_min < -2) || (Ci_min > 2) || |
| 82 | (Ci_max < -2) || (Ci_max > 2) || (Ci_min >= Ci_max)) { |
| 83 | Ci_min = -2.0; Ci_max = 1.0; |
| 84 | } |
| 85 | gPref.setCharPref("mandelbrot.last_image.Ci_min", Ci_min); |
| 86 | gPref.setCharPref("mandelbrot.last_image.Ci_max", Ci_max); |
| 87 | |
| 88 | let iterMax = gPref.getIntPref("mandelbrot.iteration_max"); |
| 89 | let algorithm = gPref.getCharPref("mandelbrot.use_algorithm"); |
| 90 | |
| 91 | let iWidth = 0; |
| 92 | try { |
| 93 | iWidth = gPref.getIntPref("mandelbrot.image.width"); |
| 94 | } |
| 95 | catch (e) { } |
| 96 | if ((iWidth < 10) || (iWidth > 5000)) { |
| 97 | iWidth = 300; |
| 98 | gPref.setIntPref("mandelbrot.image.width", iWidth); |
| 99 | } |
| 100 | let iHeight = 0; |
| 101 | try { |
| 102 | iHeight = gPref.getIntPref("mandelbrot.image.height"); |
| 103 | } |
| 104 | catch (e) { } |
| 105 | if ((iHeight < 10) || (iHeight > 5000)) { |
| 106 | iHeight = 300; |
| 107 | gPref.setIntPref("mandelbrot.image.height", iHeight); |
| 108 | } |
| 109 | |
| 110 | canvas.width = iWidth; |
| 111 | canvas.height = iHeight; |
| 112 | |
| 113 | context.fillStyle = "rgba(255, 255, 255, 127)"; |
| 114 | context.fillRect(0, 0, canvas.width, canvas.height); |
| 115 | |
| 116 | gStartTime = new Date(); |
| 117 | |
| 118 | drawLine(0, [Cr_min, Cr_max, Ci_min, Ci_max], |
| 119 | canvas, context, iterMax, algorithm); |
| 120 | } |
| 121 | |
| 122 | function drawLine(line, dimensions, canvas, context, iterMax, algorithm) { |
| 123 | let Cr_min = dimensions[0]; |
| 124 | let Cr_max = dimensions[1]; |
| 125 | let Cr_scale = Cr_max - Cr_min; |
| 126 | |
| 127 | let Ci_min = dimensions[2]; |
| 128 | let Ci_max = dimensions[3]; |
| 129 | let Ci_scale = Ci_max - Ci_min; |
| 130 | |
| 131 | let pixels = []; |
| 132 | for (var img_y = line; img_y < canvas.height && img_y < line+8; img_y++) |
| 133 | for (let img_x = 0; img_x < canvas.width; img_x++) { |
| 134 | let C = new complex(Cr_min + (img_x / canvas.width) * Cr_scale, |
| 135 | Ci_min + (img_y / canvas.height) * Ci_scale); |
| 136 | pixels.push.apply(pixels, drawPoint(context, img_x, img_y, C, iterMax, algorithm)); |
| 137 | } |
| 138 | context.putImageData({width: canvas.width, height: pixels.length/4/canvas.width, data: pixels}, 0, line); |
| 139 | |
| 140 | if (img_y < canvas.height) |
| 141 | setTimeout(drawLine, 0, img_y, dimensions, canvas, context, iterMax, algorithm); |
| 142 | else if (gStartTime) |
| 143 | EndCalc(); |
| 144 | } |
| 145 | |
| 146 | function EndCalc() { |
| 147 | let endTime = new Date(); |
| 148 | let timeUsed = (endTime.getTime() - gStartTime.getTime()) / 1000; |
| 149 | document.getElementById("statusLabel").value = |
| 150 | document.getElementById("mbrotBundle").getFormattedString("statusTime", [timeUsed.toFixed(3)]); |
| 151 | gStartTime = 0; |
| 152 | } |
| 153 | |
| 154 | function complex(aReal, aImag) { |
| 155 | this.r = aReal; |
| 156 | this.i = aImag; |
| 157 | } |
| 158 | complex.prototype = { |
| 159 | square: function() { |
| 160 | return new complex(this.r * this.r - this.i * this.i, |
| 161 | 2 * this.r * this.i); |
| 162 | }, |
| 163 | dist: function() { |
| 164 | return Math.sqrt(this.r * this.r + this.i * this.i); |
| 165 | }, |
| 166 | add: function(aComplex) { |
| 167 | return new complex(this.r + aComplex.r, this.i + aComplex.i); |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | function mandelbrotValueOO (aC, aIterMax) { |
| 172 | // this would be nice code in general but it looks like JS objects are too heavy for normal use. |
| 173 | let Z = new complex(0.0, 0.0); |
| 174 | for (var iter = 0; iter < aIterMax; iter++) { |
| 175 | Z = Z.square().add(aC); |
| 176 | if (Z.r * Z.r + Z.i * Z.i > 256) { break; } |
| 177 | } |
| 178 | return iter; |
| 179 | } |
| 180 | |
| 181 | function mandelbrotValueNumeric (aC, aIterMax) { |
| 182 | // optimized numeric code for fast calculation |
| 183 | let Cr = aC.r, Ci = aC.i; |
| 184 | let Zr = 0.0, Zi = 0.0; |
| 185 | let Zr2 = Zr * Zr, Zi2 = Zi * Zi; |
| 186 | for (var iter = 0; iter < aIterMax; iter++) { |
| 187 | Zi = 2 * Zr * Zi + Ci; |
| 188 | Zr = Zr2 - Zi2 + Cr; |
| 189 | |
| 190 | Zr2 = Zr * Zr; Zi2 = Zi * Zi; |
| 191 | if (Zr2 + Zi2 > 256) { break; } |
| 192 | } |
| 193 | return iter; |
| 194 | } |
| 195 | |
| 196 | function getColor(aIterValue, aIterMax) { |
| 197 | let standardizedValue = Math.round(aIterValue * 1024 / aIterMax); |
| 198 | if (gColorPalette && gColorPalette.length) |
| 199 | return gColorPalette[standardizedValue]; |
| 200 | |
| 201 | // fallback to simple b/w if for some reason we don't have a palette |
| 202 | if (aIterValue == aIterMax) |
| 203 | return [0, 0, 0, 255]; |
| 204 | else |
| 205 | return [255, 255, 255, 255]; |
| 206 | } |
| 207 | |
| 208 | function getColorPalette(palName) { |
| 209 | var palette = []; |
| 210 | switch (palName) { |
| 211 | case 'bw': |
| 212 | for (let i = 0; i < 1024; i++) { |
| 213 | palette[i] = [255, 255, 255, 255]; |
| 214 | } |
| 215 | palette[1024] = [0, 0, 0, 255]; |
| 216 | break; |
| 217 | case 'kairo': |
| 218 | // outer areas |
| 219 | for (let i = 0; i < 32; i++) { |
| 220 | let cc1 = Math.floor(i * 127 / 31); |
| 221 | let cc2 = 170 - Math.floor(i * 43 / 31); |
| 222 | palette[i] = [cc1, cc2, cc1, 255]; |
| 223 | } |
| 224 | // inner areas |
| 225 | for (let i = 0; i < 51; i++) { |
| 226 | let cc = Math.floor(i * 170 / 50); |
| 227 | palette[32 + i] = [cc, 0, (170-cc), 255]; |
| 228 | } |
| 229 | // corona |
| 230 | for (let i = 0; i < 101; i++) { |
| 231 | let cc = Math.floor(i * 200 / 100); |
| 232 | palette[83 + i] = [255, cc, 0, 255]; |
| 233 | } |
| 234 | // inner corona |
| 235 | for (let i = 0; i < 201; i++) { |
| 236 | let cc1 = 255 - Math.floor(i * 85 / 200); |
| 237 | let cc2 = 200 - Math.floor(i * 30 / 200); |
| 238 | let cc3 = Math.floor(i * 170 / 200); |
| 239 | palette[184 + i] = [cc1, cc2, cc3, 255]; |
| 240 | } |
| 241 | for (let i = 0; i < 301; i++) { |
| 242 | let cc1 = 170 - Math.floor(i * 43 / 300); |
| 243 | let cc2 = 170 + Math.floor(i * 85 / 300); |
| 244 | palette[385 + i] = [cc1, cc1, cc2, 255]; |
| 245 | } |
| 246 | for (let i = 0; i < 338; i++) { |
| 247 | let cc = 127 + Math.floor(i * 128 / 337); |
| 248 | palette[686 + i] = [cc, cc, 255, 255]; |
| 249 | } |
| 250 | palette[1024] = [0, 0, 0, 255]; |
| 251 | break; |
| 252 | case 'rainbow-linear1': |
| 253 | for (let i = 0; i < 256; i++) { |
| 254 | palette[i] = [i, 0, 0, 255]; |
| 255 | palette[256 + i] = [255, i, 0, 255]; |
| 256 | palette[512 + i] = [255 - i, 255, i, 255]; |
| 257 | palette[768 + i] = [i, 255-i, 255, 255]; |
| 258 | } |
| 259 | palette[1024] = [0, 0, 0, 255]; |
| 260 | break; |
| 261 | } |
| 262 | /* |
| 263 | Select Case palnr |
| 264 | Case 1 'Standard-Palette (QB-Colors) |
| 265 | For i = 0 To 1024 |
| 266 | xx = CInt(i * 500 / 1024 + 2) |
| 267 | If xx <= 15 Then clr = xx |
| 268 | If xx > 15 Then clr = CInt(Sqr((xx - 15 + 1) * 15 ^ 2 / 485)) |
| 269 | If xx >= 500 Then clr = 0 |
| 270 | palette(i) = QBColor(clr) |
| 271 | Next |
| 272 | Case 3 'Regenbogen-Palette 1 (qu.) |
| 273 | For i = 0 To 33 |
| 274 | clr = CInt(i * 255 / 33) |
| 275 | palette(i) = RGB(clr, 0, 0) |
| 276 | Next |
| 277 | For i = 0 To 136 |
| 278 | clr = CInt(i * 255 / 136) |
| 279 | palette(34 + i) = RGB(255, clr, 0) |
| 280 | Next |
| 281 | For i = 0 To 306 |
| 282 | clr = CInt(i * 255 / 306) |
| 283 | palette(171 + i) = RGB(255 - clr, 255, clr) |
| 284 | Next |
| 285 | For i = 0 To 545 |
| 286 | clr = CInt(i * 255 / 545) |
| 287 | palette(478 + i) = RGB(clr, 255 - clr, 255) |
| 288 | Next |
| 289 | Case 4 'Regenbogen-Palette 2 (linear) |
| 290 | For i = 0 To 204 |
| 291 | clr = CInt(i * 255 / 204) |
| 292 | palette(i) = RGB(255, clr, 0) |
| 293 | palette(204 + i) = RGB(255 - clr, 255, 0) |
| 294 | palette(409 + i) = RGB(0, 255, clr) |
| 295 | palette(614 + i) = RGB(0, 255 - clr, 255) |
| 296 | palette(819 + i) = RGB(clr, 0, 255) |
| 297 | Next |
| 298 | Case 5 'Regenbogen-Palette 2 (qu.) |
| 299 | For i = 0 To 18 |
| 300 | clr = CInt(i * 255 / 18) |
| 301 | palette(i) = RGB(255, clr, 0) |
| 302 | Next |
| 303 | For i = 0 To 73 |
| 304 | clr = CInt(i * 255 / 73) |
| 305 | palette(20 + i) = RGB(255 - clr, 255, 0) |
| 306 | Next |
| 307 | For i = 0 To 167 |
| 308 | clr = CInt(i * 255 / 167) |
| 309 | palette(93 + i) = RGB(0, 255, clr) |
| 310 | Next |
| 311 | For i = 0 To 297 |
| 312 | clr = CInt(i * 255 / 297) |
| 313 | palette(261 + i) = RGB(0, 255 - clr, 255) |
| 314 | Next |
| 315 | For i = 0 To 464 |
| 316 | clr = CInt(i * 255 / 464) |
| 317 | palette(559 + i) = RGB(clr, 0, 255) |
| 318 | Next |
| 319 | */ |
| 320 | return palette; |
| 321 | } |
| 322 | |
| 323 | function drawPoint(context, img_x, img_y, C, iterMax, algorithm) { |
| 324 | var itVal; |
| 325 | switch (algorithm) { |
| 326 | case 'oo': |
| 327 | itVal = mandelbrotValueOO(C, iterMax); |
| 328 | break; |
| 329 | case 'numeric': |
| 330 | default: |
| 331 | itVal = mandelbrotValueNumeric(C, iterMax); |
| 332 | break; |
| 333 | } |
| 334 | return getColor(itVal, iterMax); |
| 335 | } |
| 336 | |
| 337 | /***** pure UI functions *****/ |
| 338 | |
| 339 | var zoomstart; |
| 340 | |
| 341 | function mouseevent(etype, event) { |
| 342 | let canvas = document.getElementById("mbrotImage"); |
| 343 | switch (etype) { |
| 344 | case 'down': |
| 345 | if (event.button == 0) |
| 346 | // left button - start dragzoom |
| 347 | zoomstart = {x: event.clientX - canvas.offsetLeft, |
| 348 | y: event.clientY - canvas.offsetTop}; |
| 349 | break; |
| 350 | case 'up': |
| 351 | if (event.button == 0) |
| 352 | alert(zoomstart.x + ',' + zoomstart.y + '-' + |
| 353 | (event.clientX - canvas.offsetLeft) + ',' + |
| 354 | (event.clientY - canvas.offsetTop)); |
| 355 | zoomstart = undefined; |
| 356 | break; |
| 357 | } |
| 358 | } |
| 359 | |
| 360 | function saveImage() { |
| 361 | const bundle = document.getElementById("mbrotBundle"); |
| 362 | const nsIFilePicker = Components.interfaces.nsIFilePicker; |
| 363 | var fp = null; |
| 364 | try { |
| 365 | fp = Components.classes["@mozilla.org/filepicker;1"] |
| 366 | .createInstance(nsIFilePicker); |
| 367 | } catch (e) {} |
| 368 | if (!fp) return; |
| 369 | var promptString = bundle.getString("savePrompt"); |
| 370 | fp.init(window, promptString, nsIFilePicker.modeSave); |
| 371 | fp.appendFilter(bundle.getString("pngFilterName"), "*.png"); |
| 372 | fp.defaultString = "mandelbrot.png"; |
| 373 | |
| 374 | var fpResult = fp.show(); |
| 375 | if (fpResult != nsIFilePicker.returnCancel) { |
| 376 | saveCanvas(document.getElementById("mbrotImage"), fp.file); |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | function updateBookmarkMenu(aParent) { |
| 381 | document.getElementById("bookmarkSave").disabled = |
| 382 | (!document.getElementById("drawButton").hidden || (gStartTime > 0)); |
| 383 | |
| 384 | while (aParent.hasChildNodes() && |
| 385 | aParent.lastChild.id != 'bookmarkSeparator') |
| 386 | aParent.removeChild(aParent.lastChild); |
| 387 | |
| 388 | var file = Components.classes["@mozilla.org/file/directory_service;1"] |
| 389 | .getService(Components.interfaces.nsIProperties) |
| 390 | .get("ProfD", Components.interfaces.nsIFile); |
| 391 | file.append("mandelbookmarks.sqlite"); |
| 392 | if (file.exists()) { |
| 393 | var connection = Components.classes["@mozilla.org/storage/service;1"] |
| 394 | .getService(Components.interfaces.mozIStorageService) |
| 395 | .openDatabase(file); |
| 396 | try { |
| 397 | if (connection.tableExists("bookmarks")) { |
| 398 | var statement = connection.createStatement( |
| 399 | "SELECT name FROM bookmarks ORDER BY ROWID DESC"); |
| 400 | while (statement.executeStep()) |
| 401 | aParent.appendChild(document.createElement("menuitem")) |
| 402 | .setAttribute("label", statement.getString(0)); |
| 403 | statement.reset(); |
| 404 | statement.finalize(); |
| 405 | return; |
| 406 | } |
| 407 | } finally { |
| 408 | connection.close(); |
| 409 | } |
| 410 | } |
| 411 | // Create the "Nothing Available" Menu item and disable it. |
| 412 | var na = aParent.appendChild(document.createElement("menuitem")); |
| 413 | na.setAttribute("label", |
| 414 | document.getElementById("mbrotBundle").getString("noBookmarks")); |
| 415 | na.setAttribute("disabled", "true"); |
| 416 | } |
| 417 | |
| 418 | function callBookmark(evtarget) { |
| 419 | } |
| 420 | |
| 421 | function saveBookmark() { |
| 422 | // XXX: retrieve wanted bookmark name |
| 423 | var bmName = "mandelbrot bm test"; |
| 424 | |
| 425 | // Open or create the bookmarks database. |
| 426 | var file = Components.classes["@mozilla.org/file/directory_service;1"] |
| 427 | .getService(Components.interfaces.nsIProperties) |
| 428 | .get("ProfD", Components.interfaces.nsIFile); |
| 429 | file.append("mandelbookmarks.sqlite"); |
| 430 | var connection = Components.classes["@mozilla.org/storage/service;1"] |
| 431 | .getService(Components.interfaces.mozIStorageService) |
| 432 | .openDatabase(file); |
| 433 | connection.beginTransaction(); |
| 434 | if (!connection.tableExists("bookmarks")) |
| 435 | connection.createTable("bookmarks", "name TEXT, iteration_max INTEGER, Cr_min REAL, Cr_max REAL, Ci_min REAL, Ci_max REAL"); |
| 436 | // NULL. The value is a NULL value. |
| 437 | // INTEGER. The value is a signed integer, stored in 1, 2, 3, 4, 6, or 8 bytes depending on the magnitude of the value. |
| 438 | // REAL. The value is a floating point value, stored as an 8-byte IEEE floating point number. |
| 439 | // TEXT. The value is a text string, stored using the database encoding (UTF-8, UTF-16BE or UTF-16-LE). |
| 440 | |
| 441 | // Put value of the current image into the bookmarks table |
| 442 | var statement = connection.createStatement( |
| 443 | "INSERT INTO bookmarks (name,iteration_max,Cr_min,Cr_max,Ci_min,Ci_max) VALUES (?1,?2,?3,?4,?5,?6)"); |
| 444 | statement.bindStringParameter(0, bmName); |
| 445 | statement.bindStringParameter(1, gPref.getIntPref("mandelbrot.iteration_max")); |
| 446 | statement.bindStringParameter(2, parseFloat(gPref.getCharPref("mandelbrot.last_image.Cr_min"))); |
| 447 | statement.bindStringParameter(3, parseFloat(gPref.getCharPref("mandelbrot.last_image.Cr_max"))); |
| 448 | statement.bindStringParameter(4, parseFloat(gPref.getCharPref("mandelbrot.last_image.Ci_min"))); |
| 449 | statement.bindStringParameter(5, parseFloat(gPref.getCharPref("mandelbrot.last_image.Ci_max"))); |
| 450 | statement.execute(); |
| 451 | statement.finalize(); |
| 452 | connection.commitTransaction(); |
| 453 | connection.close(); |
| 454 | } |
| 455 | |
| 456 | function updateIterMenu() { |
| 457 | try { |
| 458 | var currentIter = gPref.getIntPref("mandelbrot.iteration_max"); |
| 459 | } |
| 460 | catch(e) { |
| 461 | var currentIter = 0; |
| 462 | } |
| 463 | if (currentIter < 10) { |
| 464 | currentIter = 500; |
| 465 | setIter(currentIter); |
| 466 | } |
| 467 | |
| 468 | var popup = document.getElementById("menu_iterPopup"); |
| 469 | var item = popup.firstChild; |
| 470 | while (item) { |
| 471 | if (item.getAttribute("name") == "iter") { |
| 472 | if (item.getAttribute("value") == currentIter) |
| 473 | item.setAttribute("checked","true"); |
| 474 | else |
| 475 | item.removeAttribute("checked"); |
| 476 | } |
| 477 | item = item.nextSibling; |
| 478 | } |
| 479 | } |
| 480 | |
| 481 | function setIter(aIter) { |
| 482 | gPref.setIntPref("mandelbrot.iteration_max", aIter); |
| 483 | } |
| 484 | |
| 485 | function updatePaletteMenu() { |
| 486 | try { |
| 487 | var currentPalette = gPref.getCharPref("mandelbrot.color_palette"); |
| 488 | } |
| 489 | catch(e) { |
| 490 | var currentPalette = ''; |
| 491 | } |
| 492 | if (!currentPalette.length) { |
| 493 | currentPalette = 'kairo'; |
| 494 | setPalette(currentPalette); |
| 495 | } |
| 496 | if (!gColorPalette || !gColorPalette.length) |
| 497 | gColorPalette = getColorPalette(currentPalette); |
| 498 | |
| 499 | var popup = document.getElementById("menu_palettePopup"); |
| 500 | var item = popup.firstChild; |
| 501 | while (item) { |
| 502 | if (item.getAttribute("name") == "palette") { |
| 503 | if (item.getAttribute("value") == currentPalette) |
| 504 | item.setAttribute("checked", "true"); |
| 505 | else |
| 506 | item.removeAttribute("checked"); |
| 507 | } |
| 508 | item = item.nextSibling; |
| 509 | } |
| 510 | } |
| 511 | |
| 512 | function setPalette(aPaletteID) { |
| 513 | gPref.setCharPref("mandelbrot.color_palette", aPaletteID); |
| 514 | gColorPalette = getColorPalette(aPaletteID); |
| 515 | } |
| 516 | |
| 517 | function imgSettings() { |
| 518 | window.openDialog("chrome://mandelbrot/content/image-settings.xul"); |
| 519 | } |
| 520 | |
| 521 | function updateDebugMenu() { |
| 522 | var jitMenuItem = document.getElementById("jitEnabled"); |
| 523 | jitMenuItem.setAttribute("checked", gPref.getBoolPref("javascript.options.jit.chrome")); |
| 524 | } |
| 525 | |
| 526 | function toggleJITState(jitMenuItem) { |
| 527 | var jitEnabled = !gPref.getBoolPref("javascript.options.jit.chrome"); |
| 528 | gPref.setBoolPref("javascript.options.jit.chrome", jitEnabled) |
| 529 | jitMenuItem.setAttribute("checked", jitEnabled? "true" : "false"); |
| 530 | } |
| 531 | |
| 532 | function updateAlgoMenu() { |
| 533 | try { |
| 534 | var currentAlgo = gPref.getCharPref("mandelbrot.use_algorithm"); |
| 535 | } |
| 536 | catch(e) { |
| 537 | var currentAlgo = ''; |
| 538 | } |
| 539 | if (!currentAlgo.length) { |
| 540 | currentAlgo = 'numeric'; |
| 541 | setAlgorithm(currentAlgo); |
| 542 | } |
| 543 | |
| 544 | var popup = document.getElementById("menu_algoPopup"); |
| 545 | var item = popup.firstChild; |
| 546 | while (item) { |
| 547 | if (item.getAttribute("name") == "algorithm") { |
| 548 | if (item.getAttribute("value") == currentAlgo) |
| 549 | item.setAttribute("checked", "true"); |
| 550 | else |
| 551 | item.removeAttribute("checked"); |
| 552 | } |
| 553 | item = item.nextSibling; |
| 554 | } |
| 555 | } |
| 556 | |
| 557 | function setAlgorithm(algoID) { |
| 558 | gPref.setCharPref("mandelbrot.use_algorithm", algoID); |
| 559 | } |
| 560 | |
| 561 | function addonsManager(aPane) { |
| 562 | var theEM = Components.classes["@mozilla.org/appshell/window-mediator;1"] |
| 563 | .getService(Components.interfaces.nsIWindowMediator) |
| 564 | .getMostRecentWindow("Extension:Manager"); |
| 565 | if (theEM) { |
| 566 | theEM.focus(); |
| 567 | if (aPane) |
| 568 | theEM.showView(aPane); |
| 569 | return; |
| 570 | } |
| 571 | |
| 572 | const EMURL = "chrome://mozapps/content/extensions/extensions.xul"; |
| 573 | const EMFEATURES = "all,dialog=no"; |
| 574 | if (aPane) |
| 575 | window.openDialog(EMURL, "", EMFEATURES, aPane); |
| 576 | else |
| 577 | window.openDialog(EMURL, "", EMFEATURES); |
| 578 | } |
| 579 | |
| 580 | function errorConsole() { |
| 581 | toOpenWindowByType("global:console", "chrome://global/content/console.xul"); |
| 582 | } |
| 583 | |
| 584 | /***** helper functions from external sources *****/ |
| 585 | |
| 586 | // function below is based on http://developer.mozilla.org/en/docs/Code_snippets:Canvas |
| 587 | // custom modifications: |
| 588 | // - use "a"-prefix on function arguments |
| 589 | // - take an nsILocalFile as aDestFile argument |
| 590 | // - always do silent download |
| 591 | function saveCanvas(aCanvas, aDestFile) { |
| 592 | // create a data url from the canvas and then create URIs of the source and targets |
| 593 | var io = Components.classes["@mozilla.org/network/io-service;1"] |
| 594 | .getService(Components.interfaces.nsIIOService); |
| 595 | var source = io.newURI(aCanvas.toDataURL("image/png", ""), "UTF8", null); |
| 596 | |
| 597 | // prepare to save the canvas data |
| 598 | var persist = Components.classes["@mozilla.org/embedding/browser/nsWebBrowserPersist;1"] |
| 599 | .createInstance(Components.interfaces.nsIWebBrowserPersist); |
| 600 | |
| 601 | persist.persistFlags = Components.interfaces.nsIWebBrowserPersist.PERSIST_FLAGS_REPLACE_EXISTING_FILES; |
| 602 | persist.persistFlags |= Components.interfaces.nsIWebBrowserPersist.PERSIST_FLAGS_AUTODETECT_APPLY_CONVERSION; |
| 603 | |
| 604 | // save the canvas data to the file |
| 605 | persist.saveURI(source, null, null, null, null, aDestFile); |
| 606 | } |
| 607 | |
| 608 | // function below is from http://developer.mozilla.org/en/docs/How_to_Quit_a_XUL_Application |
| 609 | function quitApp(aForceQuit) { |
| 610 | var appStartup = Components.classes['@mozilla.org/toolkit/app-startup;1'] |
| 611 | .getService(Components.interfaces.nsIAppStartup); |
| 612 | |
| 613 | // eAttemptQuit will try to close each XUL window, but the XUL window can cancel the quit |
| 614 | // process if there is unsaved data. eForceQuit will quit no matter what. |
| 615 | var quitSeverity = aForceQuit ? Components.interfaces.nsIAppStartup.eForceQuit : |
| 616 | Components.interfaces.nsIAppStartup.eAttemptQuit; |
| 617 | appStartup.quit(quitSeverity); |
| 618 | } |
| 619 | |
| 620 | // functions below are from comm-central/suite/common/tasksOverlay.js |
| 621 | function toOpenWindow(aWindow) { |
| 622 | try { |
| 623 | // Try to focus the previously focused window e.g. message compose body |
| 624 | aWindow.document.commandDispatcher.focusedWindow.focus(); |
| 625 | } catch (e) { |
| 626 | // e.g. full-page plugin or non-XUL document; just raise the top window |
| 627 | aWindow.focus(); |
| 628 | } |
| 629 | } |
| 630 | |
| 631 | function toOpenWindowByType(inType, uri, features) { |
| 632 | // don't do several loads in parallel |
| 633 | if (uri in window) |
| 634 | return; |
| 635 | |
| 636 | var topWindow = Components.classes["@mozilla.org/appshell/window-mediator;1"] |
| 637 | .getService(Components.interfaces.nsIWindowMediator) |
| 638 | .getMostRecentWindow(inType); |
| 639 | if ( topWindow ) |
| 640 | toOpenWindow( topWindow ); |
| 641 | else { |
| 642 | // open the requested window, but block it until it's fully loaded |
| 643 | function newWindowLoaded(event) { |
| 644 | // make sure that this handler is called only once |
| 645 | window.removeEventListener("unload", newWindowLoaded, false); |
| 646 | window[uri].removeEventListener("load", newWindowLoaded, false); |
| 647 | delete window[uri]; |
| 648 | } |
| 649 | // remember the newly loading window until it's fully loaded |
| 650 | // or until the current window passes away |
| 651 | window[uri] = window.openDialog(uri, "", features || "all,dialog=no"); |
| 652 | window[uri].addEventListener("load", newWindowLoaded, false); |
| 653 | window.addEventListener("unload", newWindowLoaded, false); |
| 654 | } |
| 655 | } |