-var gColorPalette = getColorPalette('kairo');
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is KaiRo.at Mandelbrot, XULRunner version.
+ *
+ * The Initial Developer of the Original Code is
+ * Robert Kaiser <kairo@kairo.at>.
+ * Portions created by the Initial Developer are Copyright (C) 2008-2011
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * Robert Kaiser <kairo@kairo.at>
+ * prefiks (patch for some speedups)
+ * Boris Zbarsky <bzbarsky@mit.edu> (use imageData for canvas interaction)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+var gColorPalette = [];
+var gPref = Components.classes["@mozilla.org/preferences-service;1"]
+ .getService(Components.interfaces.nsIPrefService)
+ .getBranch(null);
+var gStartTime = 0;
+var gMbrotBundle;
+var gCurrentImageData;
+
+function Startup() {
+ updateIterMenu();
+ updateAlgoMenu();
+ updatePaletteMenu();
+ gMbrotBundle = document.getElementById("mbrotBundle");
+ document.getElementById("statusLabel").value = gMbrotBundle.getString("statusEmpty");
+}
+
+function getAdjustPref(prefname) {
+ let value;
+ switch (prefname) {
+ case "image.width":
+ case "image.height":
+ value = 0;
+ try {
+ value = gPref.getIntPref("mandelbrot." + prefname);
+ }
+ catch (e) { }
+ if ((value < 10) || (value > 5000)) {
+ value = 300;
+ gPref.setIntPref("mandelbrot." + prefname, value);
+ }
+ return value;
+ case "last_image.Cr_*":
+ let Cr_min = -2.0;
+ let Cr_max = 1.0;
+ try {
+ Cr_min = parseFloat(gPref.getCharPref("mandelbrot.last_image.Cr_min"));
+ Cr_max = parseFloat(gPref.getCharPref("mandelbrot.last_image.Cr_max"));
+ }
+ catch (e) { }
+ if ((Cr_min < -3) || (Cr_min > 2) ||
+ (Cr_max < -3) || (Cr_max > 2) || (Cr_min >= Cr_max)) {
+ Cr_min = -2.0; Cr_max = 1.0;
+ }
+ gPref.setCharPref("mandelbrot.last_image.Cr_min", Cr_min);
+ gPref.setCharPref("mandelbrot.last_image.Cr_max", Cr_max);
+ return {Cr_min: Cr_min, Cr_max: Cr_max};
+ case "last_image.Ci_*":
+ let Ci_min = -1.5;
+ let Ci_max = 1.5;
+ try {
+ Ci_min = parseFloat(gPref.getCharPref("mandelbrot.last_image.Ci_min"));
+ Ci_max = parseFloat(gPref.getCharPref("mandelbrot.last_image.Ci_max"));
+ }
+ catch (e) { }
+ if ((Ci_min < -2.5) || (Ci_min > 2.5) ||
+ (Ci_max < -2.5) || (Ci_max > 2.5) || (Ci_min >= Ci_max)) {
+ Ci_min = -1.5; Ci_max = 1.5;
+ }
+ gPref.setCharPref("mandelbrot.last_image.Ci_min", Ci_min);
+ gPref.setCharPref("mandelbrot.last_image.Ci_max", Ci_max);
+ return {Ci_min: Ci_min, Ci_max: Ci_max};
+ case "iteration_max":
+ value = 500;
+ try {
+ value = gPref.getIntPref("mandelbrot." + prefname);
+ }
+ catch (e) {
+ setIter(value);
+ }
+ if (value < 10 || value > 10000) {
+ value = 500;
+ setIter(value);
+ }
+ return value;
+ case "use_algorithm":
+ value = "numeric";
+ try {
+ value = gPref.getCharPref("mandelbrot." + prefname);
+ }
+ catch (e) {
+ setAlgorithm(value);
+ }
+ return value;
+ case "color_palette":
+ value = "kairo";
+ try {
+ value = gPref.getCharPref("mandelbrot." + prefname);
+ }
+ catch(e) {
+ setPalette(value);
+ }
+ return value;
+ case "syncProportions":
+ value = true;
+ try {
+ value = gPref.getBoolPref("mandelbrot." + prefname);
+ }
+ catch(e) {
+ gPref.setBoolPref("mandelbrot." + prefname, value);
+ }
+ return value;
+ default:
+ return false;
+ }
+}
+
+function adjustCoordsAndDraw(aC_min, aC_max) {
+ let iWidth = getAdjustPref("image.width");
+ let iHeight = getAdjustPref("image.height");
+
+ // correct coordinates
+ if (aC_min.r < -2)
+ aC_min.r = -2;
+ if (aC_max.r > 2)
+ aC_max.r = 2;
+ if ((aC_min.r > 2) || (aC_max.r < -2) || (aC_min.r >= aC_max.r)) {
+ aC_min.r = -2.0; aC_max.r = 1.0;
+ }
+ if (aC_min.i < -2)
+ aC_min.i = -2;
+ if (aC_max.i > 2)
+ aC_max.i = 2;
+ if ((aC_min.i > 2) || (aC_max.i < -2) || (aC_min.i >= aC_max.i)) {
+ aC_min.i = -1.3; aC_max.i = 1.3;
+ }
+
+ let CWidth = aC_max.r - aC_min.r;
+ let CHeight = aC_max.i - aC_min.i;
+ let C_mid = new complex(aC_min.r + CWidth / 2, aC_min.i + CHeight / 2);
+
+ let CRatio = Math.max(CWidth / iWidth, CHeight / iHeight);
+
+ gPref.setCharPref("mandelbrot.last_image.Cr_min", C_mid.r - iWidth * CRatio / 2);
+ gPref.setCharPref("mandelbrot.last_image.Cr_max", C_mid.r + iWidth * CRatio / 2);
+ gPref.setCharPref("mandelbrot.last_image.Ci_min", C_mid.i - iHeight * CRatio / 2);
+ gPref.setCharPref("mandelbrot.last_image.Ci_max", C_mid.i + iHeight * CRatio / 2);
+
+ drawImage();
+}
function drawImage() {
let canvas = document.getElementById("mbrotImage");
- if (canvas.getContext) {
- let context = canvas.getContext("2d");
+ let context = canvas.getContext("2d");
+
+ document.getElementById("drawButton").hidden = true;
+
+ document.getElementById("statusLabel").value = gMbrotBundle.getString("statusDrawing");
+
+ let Cr_vals = getAdjustPref("last_image.Cr_*");
+ let Cr_min = Cr_vals.Cr_min;
+ let Cr_max = Cr_vals.Cr_max;
+
+ let Ci_vals = getAdjustPref("last_image.Ci_*");
+ let Ci_min = Ci_vals.Ci_min;
+ let Ci_max = Ci_vals.Ci_max;
+
+ let iterMax = getAdjustPref("iteration_max");
+ let algorithm = getAdjustPref("use_algorithm");
+
+ let iWidth = getAdjustPref("image.width");
+ let iHeight = getAdjustPref("image.height");
+
+ gCurrentImageData = {
+ C_min: new complex(Cr_min, Ci_min),
+ C_max: new complex(Cr_max, Ci_max),
+ iWidth: iWidth,
+ iHeight: iHeight,
+ iterMax: iterMax
+ };
+
+ canvas.width = iWidth;
+ canvas.height = iHeight;
+
+ context.fillStyle = "rgba(255, 255, 255, 127)";
+ context.fillRect(0, 0, canvas.width, canvas.height);
- // example:
- // context.fillStyle = "rgb(200,0,0)";
- // context.fillRect (10, 10, 55, 50); // x, y, width, height
- //
- // context.fillStyle = "rgba(0, 0, 200, 0.5)";
- // context.fillRect (30, 30, 55, 50);
+ gStartTime = new Date();
- let Cr_min = -2.0;
- let Cr_max = 1.0;
- let Cr_scale = Cr_max - Cr_min;
+ drawLine(0, [Cr_min, Cr_max, Ci_min, Ci_max],
+ canvas, context, iterMax, algorithm);
+}
- let Ci_min = -1.5;
- let Ci_max = 1.5;
- let Ci_scale = Ci_max - Ci_min;
+function drawLine(line, dimensions, canvas, context, iterMax, algorithm) {
+ let Cr_min = dimensions[0];
+ let Cr_max = dimensions[1];
+ let Cr_scale = Cr_max - Cr_min;
- let iterMax = 500;
+ let Ci_min = dimensions[2];
+ let Ci_max = dimensions[3];
+ let Ci_scale = Ci_max - Ci_min;
+ let lines = Math.min(canvas.height - line, 8);
+ let imageData = context.createImageData(canvas.width, lines);
+ let pixels = imageData.data;
+ let idx = 0;
+ for (var img_y = line; img_y < canvas.height && img_y < line+8; img_y++)
for (let img_x = 0; img_x < canvas.width; img_x++) {
- for (let img_y = 0; img_y < canvas.height; img_y++) {
- let C = new complex(Cr_min + (img_x / canvas.width) * Cr_scale,
- Ci_min + (img_y / canvas.height) * Ci_scale);
- window.setTimeout(drawPoint, 0, context, img_x, img_y, C, iterMax);
- }
+ let C = new complex(Cr_min + (img_x / canvas.width) * Cr_scale,
+ Ci_min + (img_y / canvas.height) * Ci_scale);
+ let colors = drawPoint(context, img_x, img_y, C, iterMax, algorithm);
+ pixels[idx++] = colors[0];
+ pixels[idx++] = colors[1];
+ pixels[idx++] = colors[2];
+ pixels[idx++] = colors[3];
}
- }
+ context.putImageData(imageData, 0, line);
+
+ if (img_y < canvas.height)
+ setTimeout(drawLine, 0, img_y, dimensions, canvas, context, iterMax, algorithm);
+ else if (gStartTime)
+ EndCalc();
+}
+
+function EndCalc() {
+ let endTime = new Date();
+ let timeUsed = (endTime.getTime() - gStartTime.getTime()) / 1000;
+ document.getElementById("statusLabel").value =
+ gMbrotBundle.getFormattedString("statusTime", [timeUsed.toFixed(3)]);
+ gStartTime = 0;
}
function complex(aReal, aImag) {
this.r = aReal;
this.i = aImag;
- this.square = function() {
+}
+complex.prototype = {
+ square: function() {
return new complex(this.r * this.r - this.i * this.i,
2 * this.r * this.i);
- }
- this.dist = function() {
+ },
+ dist: function() {
return Math.sqrt(this.r * this.r + this.i * this.i);
- }
- this.add = function(aComplex) {
+ },
+ add: function(aComplex) {
return new complex(this.r + aComplex.r, this.i + aComplex.i);
}
}
-function mandelbrotValue (aC, aIterMax) {
- /* XXX: this would be nice code but it looks like JS objects are too heavy for this.
+function mandelbrotValueOO (aC, aIterMax) {
+ // this would be nice code in general but it looks like JS objects are too heavy for normal use.
let Z = new complex(0.0, 0.0);
for (var iter = 0; iter < aIterMax; iter++) {
Z = Z.square().add(aC);
if (Z.r * Z.r + Z.i * Z.i > 256) { break; }
}
- */
+ return iter;
+}
- // highly optimized code for fast calculation
+function mandelbrotValueNumeric (aC, aIterMax) {
+ // optimized numeric code for fast calculation
let Cr = aC.r, Ci = aC.i;
let Zr = 0.0, Zi = 0.0;
let Zr2 = Zr * Zr, Zi2 = Zi * Zi;
function getColor(aIterValue, aIterMax) {
let standardizedValue = Math.round(aIterValue * 1024 / aIterMax);
- return gColorPalette[standardizedValue];
- if (aIterValue == aIterMax) {
- return "rgb(0,0,0)";
- }
- else {
- //return "rgb(" + img_x + "," + img_y + ",0)";
- return "rgb(255,255,255)";
- }
+ if (gColorPalette && gColorPalette.length)
+ return gColorPalette[standardizedValue];
+
+ // fallback to simple b/w if for some reason we don't have a palette
+ if (aIterValue == aIterMax)
+ return [0, 0, 0, 255];
+ else
+ return [255, 255, 255, 255];
}
function getColorPalette(palName) {
switch (palName) {
case 'bw':
for (let i = 0; i < 1024; i++) {
- palette[i] = 'rgb(255,255,255)';
+ palette[i] = [255, 255, 255, 255];
}
- palette[1024] = 'rgb(0,0,0)';
+ palette[1024] = [0, 0, 0, 255];
break;
case 'kairo':
// outer areas
for (let i = 0; i < 32; i++) {
let cc1 = Math.floor(i * 127 / 31);
let cc2 = 170 - Math.floor(i * 43 / 31);
- palette[i] = 'rgb(' + cc1 + ',' + cc2 + ',' + cc1 + ')';
+ palette[i] = [cc1, cc2, cc1, 255];
}
// inner areas
for (let i = 0; i < 51; i++) {
let cc = Math.floor(i * 170 / 50);
- palette[32 + i] = 'rgb(' + cc + ',0,' + (170 + cc) + ')';
+ palette[32 + i] = [cc, 0, (170-cc), 255];
}
// corona
for (let i = 0; i < 101; i++) {
let cc = Math.floor(i * 200 / 100);
- palette[83 + i] = 'rgb(255,' + cc + ',0)';
+ palette[83 + i] = [255, cc, 0, 255];
}
// inner corona
for (let i = 0; i < 201; i++) {
let cc1 = 255 - Math.floor(i * 85 / 200);
let cc2 = 200 - Math.floor(i * 30 / 200);
let cc3 = Math.floor(i * 170 / 200);
- palette[184 + i] = 'rgb(' + cc1 + ',' + cc2 + ',' + cc3 + ')';
+ palette[184 + i] = [cc1, cc2, cc3, 255];
}
for (let i = 0; i < 301; i++) {
let cc1 = 170 - Math.floor(i * 43 / 300);
let cc2 = 170 + Math.floor(i * 85 / 300);
- palette[385 + i] = 'rgb(' + cc1 + ',' + cc1 + ',' + cc2 + ')';
+ palette[385 + i] = [cc1, cc1, cc2, 255];
}
for (let i = 0; i < 338; i++) {
let cc = 127 + Math.floor(i * 128 / 337);
- palette[686 + i] = 'rgb(' + cc + ',' + cc + ',255)';
+ palette[686 + i] = [cc, cc, 255, 255];
}
- palette[1024] = 'rgb(0,0,0)';
+ palette[1024] = [0, 0, 0, 255];
break;
case 'rainbow-linear1':
for (let i = 0; i < 256; i++) {
- palette[i] = 'rgb(' + i + ',0,0)';
- palette[256 + i] = 'rgb(255,' + i + ',0)';
- palette[512 + i] = 'rgb(' + (255 - i) + ',255,' + i + ')';
- palette[768 + i] = 'rgb(' + i + ',' + (255 - i) + ',255)';
+ palette[i] = [i, 0, 0, 255];
+ palette[256 + i] = [255, i, 0, 255];
+ palette[512 + i] = [255 - i, 255, i, 255];
+ palette[768 + i] = [i, 255-i, 255, 255];
+ }
+ palette[1024] = [0, 0, 0, 255];
+ break;
+ case 'rainbow-squared1':
+ for (let i = 0; i < 34; i++) {
+ let cc = Math.floor(i * 255 / 33);
+ palette[i] = [cc, 0, 0, 255];
+ }
+ for (let i = 0; i < 137; i++) {
+ let cc = Math.floor(i * 255 / 136);
+ palette[34 + i] = [255, cc, 0, 255];
+ }
+ for (let i = 0; i < 307; i++) {
+ let cc = Math.floor(i * 255 / 306);
+ palette[171 + i] = [255 - cc, 255, cc, 255];
+ }
+ for (let i = 0; i < 546; i++) {
+ let cc = Math.floor(i * 255 / 545);
+ palette[478 + i] = [cc, 255 - cc, 255, 255];
+ }
+ palette[1024] = [0, 0, 0, 255];
+ break;
+ case 'rainbow-linear2':
+ for (let i = 0; i < 205; i++) {
+ let cc = Math.floor(i * 255 / 204);
+ palette[i] = [255, cc, 0, 255];
+ palette[204 + i] = [255 - cc, 255, 0, 255];
+ palette[409 + i] = [0, 255, cc, 255];
+ palette[614 + i] = [0, 255 - cc, 255, 255];
+ palette[819 + i] = [cc, 0, 255, 255];
+ }
+ palette[1024] = [0, 0, 0, 255];
+ break;
+ case 'rainbow-squared2':
+ for (let i = 0; i < 19; i++) {
+ let cc = Math.floor(i * 255 / 18);
+ palette[i] = [255, cc, 0, 255];
+ }
+ for (let i = 0; i < 74; i++) {
+ let cc = Math.floor(i * 255 / 73);
+ palette[19 + i] = [255 - cc, 255, 0, 255];
}
- palette[1024] = 'rgb(0,0,0)';
+ for (let i = 0; i < 168; i++) {
+ let cc = Math.floor(i * 255 / 167);
+ palette[93 + i] = [0, 255, cc, 255];
+ }
+ for (let i = 0; i < 298; i++) {
+ let cc = Math.floor(i * 255 / 297);
+ palette[261 + i] = [0, 255 - cc, 255, 255];
+ }
+ for (let i = 0; i < 465; i++) {
+ let cc = Math.floor(i * 255 / 464);
+ palette[559 + i] = [cc, 0, 255, 255];
+ }
+ palette[1024] = [0, 0, 0, 255];
break;
}
-/*
-Select Case palnr
-Case 1 'Standard-Palette (QB-Colors)
+ /*
+ 'Standard-Palette (QB-Colors)
For i = 0 To 1024
xx = CInt(i * 500 / 1024 + 2)
If xx <= 15 Then clr = xx
If xx >= 500 Then clr = 0
palette(i) = QBColor(clr)
Next
-Case 3 'Regenbogen-Palette 1 (qu.)
- For i = 0 To 33
- clr = CInt(i * 255 / 33)
- palette(i) = RGB(clr, 0, 0)
- Next
- For i = 0 To 136
- clr = CInt(i * 255 / 136)
- palette(34 + i) = RGB(255, clr, 0)
- Next
- For i = 0 To 306
- clr = CInt(i * 255 / 306)
- palette(171 + i) = RGB(255 - clr, 255, clr)
- Next
- For i = 0 To 545
- clr = CInt(i * 255 / 545)
- palette(478 + i) = RGB(clr, 255 - clr, 255)
- Next
-Case 4 'Regenbogen-Palette 2 (linear)
- For i = 0 To 204
- clr = CInt(i * 255 / 204)
- palette(i) = RGB(255, clr, 0)
- palette(204 + i) = RGB(255 - clr, 255, 0)
- palette(409 + i) = RGB(0, 255, clr)
- palette(614 + i) = RGB(0, 255 - clr, 255)
- palette(819 + i) = RGB(clr, 0, 255)
- Next
-Case 5 'Regenbogen-Palette 2 (qu.)
- For i = 0 To 18
- clr = CInt(i * 255 / 18)
- palette(i) = RGB(255, clr, 0)
- Next
- For i = 0 To 73
- clr = CInt(i * 255 / 73)
- palette(20 + i) = RGB(255 - clr, 255, 0)
- Next
- For i = 0 To 167
- clr = CInt(i * 255 / 167)
- palette(93 + i) = RGB(0, 255, clr)
- Next
- For i = 0 To 297
- clr = CInt(i * 255 / 297)
- palette(261 + i) = RGB(0, 255 - clr, 255)
- Next
- For i = 0 To 464
- clr = CInt(i * 255 / 464)
- palette(559 + i) = RGB(clr, 0, 255)
- Next
-*/
+ */
return palette;
}
-function drawPoint(context, img_x, img_y, C, iterMax) {
- let itVal = mandelbrotValue(C, iterMax);
- context.fillStyle = getColor(itVal, iterMax);
- context.fillRect (img_x, img_y, 1, 1); // x, y, width, height
+function drawPoint(context, img_x, img_y, C, iterMax, algorithm) {
+ var itVal;
+ switch (algorithm) {
+ case 'oo':
+ itVal = mandelbrotValueOO(C, iterMax);
+ break;
+ case 'numeric':
+ default:
+ itVal = mandelbrotValueNumeric(C, iterMax);
+ break;
+ }
+ return getColor(itVal, iterMax);
+}
+
+/***** pure UI functions *****/
+
+var zoomstart;
+var imgBackup;
+
+function mouseevent(etype, event) {
+ let canvas = document.getElementById("mbrotImage");
+ let context = canvas.getContext("2d");
+ switch (etype) {
+ case 'down':
+ if (event.button == 0) {
+ // left button - start dragzoom
+ zoomstart = {x: event.clientX - canvas.offsetLeft,
+ y: event.clientY - canvas.offsetTop};
+ imgBackup = context.getImageData(0, 0, canvas.width, canvas.height);
+ }
+ break;
+ case 'up':
+ if (event.button == 0 && zoomstart) {
+ context.putImageData(imgBackup, 0, 0);
+ let zoomend = {x: event.clientX - canvas.offsetLeft,
+ y: event.clientY - canvas.offsetTop};
+
+ // make sure zoomend is bigger than zoomstart
+ if ((zoomend.x == zoomstart.x) || (zoomend.y == zoomstart.y)) {
+ // cannot zoom what has no area, discard it
+ zoomstart = undefined;
+ return;
+ }
+ if (zoomend.x < zoomstart.x)
+ [zoomend.x, zoomstart.x] = [zoomstart.x, zoomend.x];
+ if (zoomend.y < zoomstart.y)
+ [zoomend.y, zoomstart.y] = [zoomstart.y, zoomend.y];
+
+ // determine new "coordinates"
+ let CWidth = gCurrentImageData.C_max.r - gCurrentImageData.C_min.r;
+ let CHeight = gCurrentImageData.C_max.i - gCurrentImageData.C_min.i;
+ let newC_min = new complex(
+ gCurrentImageData.C_min.r + zoomstart.x / gCurrentImageData.iWidth * CWidth,
+ gCurrentImageData.C_min.i + zoomstart.y / gCurrentImageData.iHeight * CHeight);
+ let newC_max = new complex(
+ gCurrentImageData.C_min.r + zoomend.x / gCurrentImageData.iWidth * CWidth,
+ gCurrentImageData.C_min.i + zoomend.y / gCurrentImageData.iHeight * CHeight);
+
+ adjustCoordsAndDraw(newC_min, newC_max);
+ }
+ zoomstart = undefined;
+ break;
+ case 'move':
+ if (event.button == 0 && zoomstart) {
+ context.putImageData(imgBackup, 0, 0);
+ context.strokeStyle = "rgb(255,255,31)";
+ context.strokeRect(zoomstart.x, zoomstart.y,
+ event.clientX - canvas.offsetLeft - zoomstart.x,
+ event.clientY - canvas.offsetTop - zoomstart.y);
+ }
+ break;
+ }
}
function saveImage() {
- // should call filepicker!
- saveCanvas(document.getElementById("mbrotImage"), "/home/robert/temp/canvas-save.png")
+ const nsIFilePicker = Components.interfaces.nsIFilePicker;
+ let fp = null;
+ try {
+ fp = Components.classes["@mozilla.org/filepicker;1"]
+ .createInstance(nsIFilePicker);
+ } catch (e) {}
+ if (!fp) return;
+ let promptString = gMbrotBundle.getString("savePrompt");
+ fp.init(window, promptString, nsIFilePicker.modeSave);
+ fp.appendFilter(gMbrotBundle.getString("pngFilterName"), "*.png");
+ fp.defaultString = "mandelbrot.png";
+
+ let fpResult = fp.show();
+ if (fpResult != nsIFilePicker.returnCancel) {
+ saveCanvas(document.getElementById("mbrotImage"), fp.file);
+ }
+}
+
+function exitMandelbrot() {
+ var appInfo = Components.classes["@mozilla.org/xre/app-info;1"]
+ .getService(Components.interfaces.nsIXULAppInfo);
+ if (appInfo.ID == "mandelbrot@kairo.at")
+ quitApp(false);
+ else
+ window.close();
+}
+
+function updateBookmarkMenu(aParent) {
+ document.getElementById("bookmarkSave").disabled =
+ (!document.getElementById("drawButton").hidden || (gStartTime > 0));
+
+ while (aParent.hasChildNodes() &&
+ aParent.lastChild.id != "bookmarkSeparator")
+ aParent.removeChild(aParent.lastChild);
+
+ let file = Components.classes["@mozilla.org/file/directory_service;1"]
+ .getService(Components.interfaces.nsIProperties)
+ .get("ProfD", Components.interfaces.nsIFile);
+ file.append("mandelbookmarks.sqlite");
+ if (file.exists()) {
+ let connection = Components.classes["@mozilla.org/storage/service;1"]
+ .getService(Components.interfaces.mozIStorageService)
+ .openDatabase(file);
+ try {
+ if (connection.tableExists("bookmarks")) {
+ let statement = connection.createStatement(
+ "SELECT name,ROWID FROM bookmarks ORDER BY ROWID ASC");
+ while (statement.executeStep()) {
+ let newItem = aParent.appendChild(document.createElement("menuitem"));
+ newItem.setAttribute("label", statement.getString(0));
+ newItem.setAttribute("bmRowID", statement.getString(1));
+ }
+ statement.reset();
+ statement.finalize();
+ return;
+ }
+ } finally {
+ connection.close();
+ }
+ }
+ // Create the "Nothing Available" Menu item and disable it.
+ let na = aParent.appendChild(document.createElement("menuitem"));
+ na.setAttribute("label", gMbrotBundle.getString("noBookmarks"));
+ na.setAttribute("disabled", "true");
+}
+
+function callBookmark(evtarget) {
+ if (evtarget.id == "bookmarkSave" || evtarget.id == "bookmarkSeparator")
+ return;
+ if (evtarget.id == "bookmarkOverview") {
+ adjustCoordsAndDraw(new complex(0,0), new complex(0,0));
+ return;
+ }
+
+ if (evtarget.getAttribute('bmRowID')) {
+ let iterMax = 0;
+ let C_min = null;
+ let C_max = null;
+
+ let file = Components.classes["@mozilla.org/file/directory_service;1"]
+ .getService(Components.interfaces.nsIProperties)
+ .get("ProfD", Components.interfaces.nsIFile);
+ file.append("mandelbookmarks.sqlite");
+ let connection = Components.classes["@mozilla.org/storage/service;1"]
+ .getService(Components.interfaces.mozIStorageService)
+ .openDatabase(file);
+ let statement = connection.createStatement(
+ "SELECT iteration_max,Cr_min,Cr_max,Ci_min,Ci_max FROM bookmarks WHERE ROWID=?1");
+ statement.bindStringParameter(0, evtarget.getAttribute('bmRowID'));
+ while (statement.executeStep()) {
+ iterMax = statement.getInt32(0);
+ C_min = new complex(statement.getDouble(1), statement.getDouble(3));
+ C_max = new complex(statement.getDouble(2), statement.getDouble(4));
+ }
+ statement.finalize();
+ connection.close();
+
+ if (iterMax && C_min && C_max) {
+ gPref.setIntPref("mandelbrot.iteration_max", iterMax);
+ adjustCoordsAndDraw(C_min, C_max);
+ }
+ }
+}
+
+function saveBookmark() {
+ // retrieve wanted bookmark name with a prompt
+ let prompts = Components.classes["@mozilla.org/embedcomp/prompt-service;1"]
+ .getService(Components.interfaces.nsIPromptService);
+ let input = {value: ""}; // empty default value
+ let ok = prompts.prompt(null, gMbrotBundle.getString("saveBookmarkTitle"), gMbrotBundle.getString("saveBookmarkLabel"), input, null, {});
+ // ok is true if OK is pressed, false if Cancel. input.value holds the value of the edit field if "OK" was pressed.
+ if (!ok || !input.value)
+ return
+
+ let bmName = input.value;
+
+ // Open or create the bookmarks database.
+ let file = Components.classes["@mozilla.org/file/directory_service;1"]
+ .getService(Components.interfaces.nsIProperties)
+ .get("ProfD", Components.interfaces.nsIFile);
+ file.append("mandelbookmarks.sqlite");
+ let connection = Components.classes["@mozilla.org/storage/service;1"]
+ .getService(Components.interfaces.mozIStorageService)
+ .openDatabase(file);
+ connection.beginTransaction();
+ if (!connection.tableExists("bookmarks"))
+ connection.createTable("bookmarks", "name TEXT, iteration_max INTEGER, Cr_min REAL, Cr_max REAL, Ci_min REAL, Ci_max REAL");
+ // NULL. The value is a NULL value.
+ // INTEGER. The value is a signed integer, stored in 1, 2, 3, 4, 6, or 8 bytes depending on the magnitude of the value.
+ // REAL. The value is a floating point value, stored as an 8-byte IEEE floating point number.
+ // TEXT. The value is a text string, stored using the database encoding (UTF-8, UTF-16BE or UTF-16-LE).
+
+ // Put value of the current image into the bookmarks table
+ let statement = connection.createStatement(
+ "INSERT INTO bookmarks (name,iteration_max,Cr_min,Cr_max,Ci_min,Ci_max) VALUES (?1,?2,?3,?4,?5,?6)");
+ statement.bindStringParameter(0, bmName);
+ statement.bindStringParameter(1, gCurrentImageData.iterMax);
+ statement.bindStringParameter(2, gCurrentImageData.C_min.r);
+ statement.bindStringParameter(3, gCurrentImageData.C_max.r);
+ statement.bindStringParameter(4, gCurrentImageData.C_min.i);
+ statement.bindStringParameter(5, gCurrentImageData.C_max.i);
+ statement.execute();
+ statement.finalize();
+ connection.commitTransaction();
+ connection.close();
+}
+
+function updateIterMenu() {
+ let currentIter = getAdjustPref("iteration_max");
+
+ let popup = document.getElementById("menu_iterPopup");
+ let item = popup.firstChild;
+ while (item) {
+ if (item.getAttribute("name") == "iter") {
+ if (item.getAttribute("value") == currentIter)
+ item.setAttribute("checked","true");
+ else
+ item.removeAttribute("checked");
+ }
+ item = item.nextSibling;
+ }
+}
+
+function setIter(aIter) {
+ gPref.setIntPref("mandelbrot.iteration_max", aIter);
+}
+
+function updatePaletteMenu() {
+ let currentPalette = getAdjustPref("color_palette");
+ if (!gColorPalette || !gColorPalette.length)
+ gColorPalette = getColorPalette(currentPalette);
+
+ let popup = document.getElementById("menu_palettePopup");
+ let item = popup.firstChild;
+ while (item) {
+ if (item.getAttribute("name") == "palette") {
+ if (item.getAttribute("value") == currentPalette)
+ item.setAttribute("checked", "true");
+ else
+ item.removeAttribute("checked");
+ }
+ item = item.nextSibling;
+ }
+}
+
+function setPalette(aPaletteID) {
+ gPref.setCharPref("mandelbrot.color_palette", aPaletteID);
+ gColorPalette = getColorPalette(aPaletteID);
+}
+
+function imgSettings() {
+ let anchor = null;
+ let position = "before_start";
+ if (document.getElementById("mandelbrotWindow").nodeName == "page") {
+ anchor = document.getElementById("mandelbrotToolbar");
+ }
+ else {
+ anchor = document.getElementById("mandelbrotMenubar");
+ position = "after_start";
+ }
+ document.getElementById("imgSettingsPanel").showPopup(anchor, position);
+}
+
+function updateDebugMenu() {
+ let scope = (document.getElementById("mandelbrotWindow").nodeName == "page") ? "content" : "chrome";
+ for each (let type in ["tracejit", "methodjit"]) {
+ let jitMenuItem = document.getElementById(type + "Enabled");
+ jitMenuItem.setAttribute("checked", gPref.getBoolPref("javascript.options." + type + "." + scope));
+ }
+}
+
+function toggleJITState(jitMenuItem, jittype) {
+ let scope = (document.getElementById("mandelbrotWindow").nodeName == "page") ? "content" : "chrome";
+ let jitpref = "javascript.options." + jittype + "jit." + scope;
+ let jitEnabled = !gPref.getBoolPref(jitpref);
+ gPref.setBoolPref(jitpref, jitEnabled)
+ jitMenuItem.setAttribute("checked", jitEnabled ? "true" : "false");
+}
+
+function updateAlgoMenu() {
+ let currentAlgo = getAdjustPref("use_algorithm");
+
+ let popup = document.getElementById("menu_algoPopup");
+ let item = popup.firstChild;
+ while (item) {
+ if (item.getAttribute("name") == "algorithm") {
+ if (item.getAttribute("value") == currentAlgo)
+ item.setAttribute("checked", "true");
+ else
+ item.removeAttribute("checked");
+ }
+ item = item.nextSibling;
+ }
+}
+
+function setAlgorithm(algoID) {
+ gPref.setCharPref("mandelbrot.use_algorithm", algoID);
+}
+
+function addonsManager(aPane) {
+ let theEM = Components.classes["@mozilla.org/appshell/window-mediator;1"]
+ .getService(Components.interfaces.nsIWindowMediator)
+ .getMostRecentWindow("Extension:Manager");
+ if (theEM) {
+ theEM.focus();
+ if (aPane)
+ theEM.showView(aPane);
+ return;
+ }
+
+ const EMURL = "chrome://mozapps/content/extensions/extensions.xul";
+ const EMFEATURES = "all,dialog=no";
+ if (aPane)
+ window.openDialog(EMURL, "", EMFEATURES, aPane);
+ else
+ window.openDialog(EMURL, "", EMFEATURES);
}
-// function below is from from http://developer.mozilla.org/en/docs/Code_snippets:Canvas
-function saveCanvas(canvas, destFile) {
- // convert string filepath to an nsIFile
- var file = Components.classes["@mozilla.org/file/local;1"]
- .createInstance(Components.interfaces.nsILocalFile);
- file.initWithPath(destFile);
+function errorConsole() {
+ toOpenWindowByType("global:console", "chrome://global/content/console.xul");
+}
+
+function initImgSettings() {
+ // Get values from prefs.
+ for each (let coord in ["Cr", "Ci"]) {
+ let coord_vals = getAdjustPref("last_image." + coord + "_*");
+ document.getElementById("is_" + coord + "_min").value = coord_vals[coord + "_min"];
+ document.getElementById("is_" + coord + "_max").value = coord_vals[coord + "_max"];
+ }
+ for each (let dim in ["width", "height"]) {
+ document.getElementById("is_img_" + dim).value = getAdjustPref("image." + dim);
+ }
+ document.getElementById("is_syncProp").checked = getAdjustPref("syncProportions");
+
+ // Calculate scales.
+ recalcCoord("Cr", "scale");
+ recalcCoord("Ci", "scale");
+
+ // Clear the preview.
+ let canvas = document.getElementById("is_mbrotPreview");
+ let context = canvas.getContext("2d");
+ context.fillStyle = "rgba(255, 255, 255, 127)";
+ context.fillRect(0, 0, canvas.width, canvas.height);
+}
+
+function closeImgSettings() {
+ // Hide popup, which will automatically make a call to save values.
+ document.getElementById("imgSettingsPanel").hidePopup();
+}
+
+function saveImgSettings() {
+ // Get values to prefs.
+ for each (let coord in ["Cr_min", "Cr_max", "Ci_min", "Ci_max"]) {
+ gPref.setCharPref("mandelbrot.last_image." + coord,
+ document.getElementById("is_" + coord).value);
+ }
+ for each (let dim in ["width", "height"]) {
+ gPref.setIntPref("mandelbrot.image." + dim,
+ document.getElementById("is_img_" + dim).value);
+ }
+ gPref.setBoolPref("mandelbrot.syncProportions",
+ document.getElementById("is_syncProp").checked);
+}
+
+function checkISValue(textbox, type) {
+ if (type == "coord") {
+ textbox.value = roundCoord(parseFloat(textbox.value));
+ }
+ else if (type == "dim") {
+ textbox.value = parseInt(textbox.value);
+ }
+}
+
+function drawPreview() {
+ let canvas = document.getElementById("is_mbrotPreview");
+ let context = canvas.getContext("2d");
+
+ if (document.getElementById("is_img_width").value /
+ document.getElementById("is_img_height").value
+ < 80 / 50) {
+ canvas.height = 50;
+ canvas.width = canvas.height *
+ document.getElementById("is_img_width").value /
+ document.getElementById("is_img_height").value;
+ }
+ else {
+ canvas.width = 80;
+ canvas.height = canvas.width *
+ document.getElementById("is_imgHeight").value /
+ document.getElementById("is_imgWidth").value;
+ }
+
+ let Cr_min = parseFloat(document.getElementById("is_Cr_min").value);
+ let Cr_max = parseFloat(document.getElementById("is_Cr_max").value);
+ if ((Cr_min < -2) || (Cr_min > 2) ||
+ (Cr_max < -2) || (Cr_max > 2) || (Cr_min >= Cr_max)) {
+ Cr_min = -2.0; Cr_max = 1.0;
+ }
+
+ let Ci_min = parseFloat(document.getElementById("is_Ci_min").value);
+ let Ci_max = parseFloat(document.getElementById("is_Ci_max").value);
+ if ((Ci_min < -2) || (Ci_min > 2) ||
+ (Ci_max < -2) || (Ci_max > 2) || (Ci_min >= Ci_max)) {
+ Ci_min = -2.0; Ci_max = 1.0;
+ }
+ let iterMax = getAdjustPref("iteration_max");
+ let algorithm = getAdjustPref("use_algorithm");
+
+ context.fillStyle = "rgba(255, 255, 255, 127)";
+ context.fillRect(0, 0, canvas.width, canvas.height);
+
+ let currentPalette = getAdjustPref("color_palette");
+ gColorPalette = getColorPalette(currentPalette);
+
+ drawLine(0, [Cr_min, Cr_max, Ci_min, Ci_max],
+ canvas, context, iterMax, algorithm);
+}
+
+function recalcCoord(coord, target) {
+ let othercoord = (coord == "Ci") ? "Cr" : "Ci";
+ let owndim = (coord == "Ci") ? "height" : "width";
+ let otherdim = (coord == "Ci") ? "width" : "height";
+ if (target == "scale") {
+ var myscale =
+ parseFloat(document.getElementById("is_" + coord + "_max").value) -
+ parseFloat(document.getElementById("is_" + coord + "_min").value);
+ document.getElementById("is_" + coord + "_scale").value = roundCoord(myscale);
+ }
+ else if (target == 'max') {
+ let mymax =
+ parseFloat(document.getElementById("is_" + coord + "_min").value) +
+ parseFloat(document.getElementById("is_" + coord + "_scale").value);
+ document.getElementById("is_" + coord + "_max").value = roundCoord(mymax);
+ var myscale = document.getElementById("is_" + coord + "_scale").value;
+ }
+ if (document.getElementById("is_syncProp").checked) {
+ let otherscale = myscale *
+ document.getElementById("is_img_" + otherdim).value /
+ document.getElementById("is_img_" + owndim).value;
+ document.getElementById("is_" + othercoord + "_scale").value = roundCoord(otherscale);
+ let othermax =
+ parseFloat(document.getElementById("is_" + othercoord + "_min").value) +
+ parseFloat(document.getElementById("is_" + othercoord + "_scale").value);
+ document.getElementById("is_" + othercoord + "_max").value = roundCoord(othermax);
+ }
+}
+
+function checkProportions() {
+ if (!document.getElementById("is_syncProp").checked) {
+ recalcCoord("Cr", "scale");
+ }
+}
+
+function roundCoord(floatval) {
+ // We should round to 10 decimals here or so
+ return parseFloat(floatval.toFixed(10));
+}
+
+/***** helper functions from external sources *****/
+
+// function below is based on http://developer.mozilla.org/en/docs/Code_snippets:Canvas
+// custom modifications:
+// - use "a"-prefix on function arguments
+// - take an nsILocalFile as aDestFile argument
+// - always do silent download
+function saveCanvas(aCanvas, aDestFile) {
// create a data url from the canvas and then create URIs of the source and targets
var io = Components.classes["@mozilla.org/network/io-service;1"]
.getService(Components.interfaces.nsIIOService);
- var source = io.newURI(canvas.toDataURL("image/png", ""), "UTF8", null);
- var target = io.newFileURI(file);
+ var source = io.newURI(aCanvas.toDataURL("image/png", ""), "UTF8", null);
// prepare to save the canvas data
var persist = Components.classes["@mozilla.org/embedding/browser/nsWebBrowserPersist;1"]
persist.persistFlags = Components.interfaces.nsIWebBrowserPersist.PERSIST_FLAGS_REPLACE_EXISTING_FILES;
persist.persistFlags |= Components.interfaces.nsIWebBrowserPersist.PERSIST_FLAGS_AUTODETECT_APPLY_CONVERSION;
- // displays a download dialog (remove these 3 lines for silent download)
- var xfer = Components.classes["@mozilla.org/transfer;1"]
- .createInstance(Components.interfaces.nsITransfer);
- xfer.init(source, target, "", null, null, null, persist);
- persist.progressListener = xfer;
-
// save the canvas data to the file
- persist.saveURI(source, null, null, null, null, file);
+ persist.saveURI(source, null, null, null, null, aDestFile);
}
// function below is from http://developer.mozilla.org/en/docs/How_to_Quit_a_XUL_Application
Components.interfaces.nsIAppStartup.eAttemptQuit;
appStartup.quit(quitSeverity);
}
+
+// functions below are from comm-central/suite/common/tasksOverlay.js
+function toOpenWindow(aWindow) {
+ try {
+ // Try to focus the previously focused window e.g. message compose body
+ aWindow.document.commandDispatcher.focusedWindow.focus();
+ } catch (e) {
+ // e.g. full-page plugin or non-XUL document; just raise the top window
+ aWindow.focus();
+ }
+}
+
+function toOpenWindowByType(inType, uri, features) {
+ // don't do several loads in parallel
+ if (uri in window)
+ return;
+
+ var topWindow = Components.classes["@mozilla.org/appshell/window-mediator;1"]
+ .getService(Components.interfaces.nsIWindowMediator)
+ .getMostRecentWindow(inType);
+ if ( topWindow )
+ toOpenWindow( topWindow );
+ else {
+ // open the requested window, but block it until it's fully loaded
+ function newWindowLoaded(event) {
+ // make sure that this handler is called only once
+ window.removeEventListener("unload", newWindowLoaded, false);
+ window[uri].removeEventListener("load", newWindowLoaded, false);
+ delete window[uri];
+ }
+ // remember the newly loading window until it's fully loaded
+ // or until the current window passes away
+ window[uri] = window.openDialog(uri, "", features || "all,dialog=no");
+ window[uri].addEventListener("load", newWindowLoaded, false);
+ window.addEventListener("unload", newWindowLoaded, false);
+ }
+}
projects / mandelbrot.git / blobdiff