| 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 | |
| 40 | function initSettings() { |
| 41 | recalcCoord('Cr', 'scale'); |
| 42 | recalcCoord('Ci', 'scale'); |
| 43 | if (!window.opener) |
| 44 | window.getButton('extra1').disabled = true; |
| 45 | } |
| 46 | |
| 47 | function drawPreview() { |
| 48 | let canvas = document.getElementById("mbrotPreview"); |
| 49 | let context = canvas.getContext("2d"); |
| 50 | |
| 51 | if (document.getElementById("imgWidth").value / |
| 52 | document.getElementById("imgHeight").value |
| 53 | < 80 / 50) { |
| 54 | canvas.height = 50; |
| 55 | canvas.width = canvas.height * |
| 56 | document.getElementById("imgWidth").value / |
| 57 | document.getElementById("imgHeight").value; |
| 58 | } |
| 59 | else { |
| 60 | canvas.width = 80; |
| 61 | canvas.height = canvas.width * |
| 62 | document.getElementById("imgHeight").value / |
| 63 | document.getElementById("imgWidth").value; |
| 64 | } |
| 65 | |
| 66 | let Cr_min = parseFloat(document.getElementById("Cr_min").value); |
| 67 | let Cr_max = parseFloat(document.getElementById("Cr_max").value); |
| 68 | if ((Cr_min < -2) || (Cr_min > 2) || |
| 69 | (Cr_max < -2) || (Cr_max > 2) || (Cr_min >= Cr_max)) { |
| 70 | Cr_min = -2.0; Cr_max = 1.0; |
| 71 | } |
| 72 | |
| 73 | let Ci_min = parseFloat(document.getElementById("Ci_min").value); |
| 74 | let Ci_max = parseFloat(document.getElementById("Ci_max").value); |
| 75 | if ((Ci_min < -2) || (Ci_min > 2) || |
| 76 | (Ci_max < -2) || (Ci_max > 2) || (Ci_min >= Ci_max)) { |
| 77 | Ci_min = -2.0; Ci_max = 1.0; |
| 78 | } |
| 79 | |
| 80 | let iterMax = gPref.getIntPref("mandelbrot.iteration_max"); |
| 81 | let algorithm = gPref.getCharPref("mandelbrot.use_algorithm"); |
| 82 | |
| 83 | context.fillStyle = "rgba(255, 255, 255, 127)"; |
| 84 | context.fillRect(0, 0, canvas.width, canvas.height); |
| 85 | |
| 86 | try { |
| 87 | var currentPalette = gPref.getCharPref("mandelbrot.color_palette"); |
| 88 | } |
| 89 | catch(e) { |
| 90 | var currentPalette = ''; |
| 91 | } |
| 92 | if (!currentPalette.length) { |
| 93 | currentPalette = 'kairo'; |
| 94 | } |
| 95 | gColorPalette = getColorPalette(currentPalette); |
| 96 | |
| 97 | drawLine(0, [Cr_min, Cr_max, Ci_min, Ci_max], |
| 98 | canvas, context, iterMax, algorithm); |
| 99 | } |
| 100 | |
| 101 | function recalcCoord(coord, target) { |
| 102 | let othercoord = (coord == 'Ci') ? 'Cr' : 'Ci'; |
| 103 | let owndim = (coord == 'Ci') ? 'height' : 'width'; |
| 104 | let otherdim = (coord == 'Ci') ? 'width' : 'height'; |
| 105 | if (target == 'scale') { |
| 106 | var myscale = |
| 107 | parseFloat(document.getElementById(coord + '_max').value) - |
| 108 | parseFloat(document.getElementById(coord + '_min').value); |
| 109 | document.getElementById(coord + '_scale').value = roundCoord(myscale); |
| 110 | } |
| 111 | else if (target == 'max') { |
| 112 | let mymax = |
| 113 | parseFloat(document.getElementById(coord + '_min').value) + |
| 114 | parseFloat(document.getElementById(coord + '_scale').value); |
| 115 | document.getElementById('mandelbrot.last_image.' + coord + '_max').value = roundCoord(mymax); |
| 116 | var myscale = document.getElementById(coord + '_scale').value; |
| 117 | } |
| 118 | if (document.getElementById('syncProp').checked) { |
| 119 | let otherscale = myscale * |
| 120 | document.getElementById('mandelbrot.image.' + otherdim).value / |
| 121 | document.getElementById('mandelbrot.image.' + owndim).value; |
| 122 | document.getElementById(othercoord + '_scale').value = roundCoord(otherscale); |
| 123 | let othermax = |
| 124 | parseFloat(document.getElementById(othercoord + '_min').value) + |
| 125 | parseFloat(document.getElementById(othercoord + '_scale').value); |
| 126 | document.getElementById('mandelbrot.last_image.' + othercoord + '_max').value = roundCoord(othermax); |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | function checkProportions() { |
| 131 | if (!document.getElementById('syncProp').checked) { |
| 132 | recalcCoord('Cr', 'scale'); |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | function roundCoord(floatval) { |
| 137 | // We should round to 10 decimals here or so |
| 138 | return floatval; |
| 139 | } |
| 140 | |
| 141 | function callDrawImage() { |
| 142 | window.opener.drawImage(); |
| 143 | window.close(); |
| 144 | } |