1 /* ***** BEGIN LICENSE BLOCK *****
2 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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/
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
14 * The Original Code is KaiRo.at Mandelbrot, XULRunner version.
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.
22 * Robert Kaiser <kairo@kairo.at>
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.
36 * ***** END LICENSE BLOCK ***** */
38 var gColorPalette = [];
40 function initSettings() {
41 recalcCoord('Cr', 'scale');
42 recalcCoord('Ci', 'scale');
44 window.getButton('extra1').disabled = true;
47 function drawPreview() {
48 let canvas = document.getElementById("mbrotPreview");
49 let context = canvas.getContext("2d");
51 if (document.getElementById("imgWidth").value /
52 document.getElementById("imgHeight").value
55 canvas.width = canvas.height *
56 document.getElementById("imgWidth").value /
57 document.getElementById("imgHeight").value;
61 canvas.height = canvas.width *
62 document.getElementById("imgHeight").value /
63 document.getElementById("imgWidth").value;
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;
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;
80 let iterMax = gPref.getIntPref("mandelbrot.iteration_max");
81 let algorithm = gPref.getCharPref("mandelbrot.use_algorithm");
83 context.fillStyle = "rgba(255, 255, 255, 127)";
84 context.fillRect(0, 0, canvas.width, canvas.height);
87 var currentPalette = gPref.getCharPref("mandelbrot.color_palette");
90 var currentPalette = '';
92 if (!currentPalette.length) {
93 currentPalette = 'kairo';
95 gColorPalette = getColorPalette(currentPalette);
97 drawLine(0, [Cr_min, Cr_max, Ci_min, Ci_max],
98 canvas, context, iterMax, algorithm);
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') {
107 parseFloat(document.getElementById(coord + '_max').value) -
108 parseFloat(document.getElementById(coord + '_min').value);
109 document.getElementById(coord + '_scale').value = roundCoord(myscale);
111 else if (target == 'max') {
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;
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);
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);
130 function checkProportions() {
131 if (!document.getElementById('syncProp').checked) {
132 recalcCoord('Cr', 'scale');
136 function roundCoord(floatval) {
137 // We should round to 10 decimals here or so
141 function callDrawImage() {
142 window.opener.drawImage();