+++ /dev/null
-/* ***** 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");
- 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);
-
- gStartTime = new Date();
-
- drawLine(0, [Cr_min, Cr_max, Ci_min, Ci_max],
- canvas, context, iterMax, algorithm);
-}
-
-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 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++) {
- 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;
-}
-complex.prototype = {
- square: function() {
- return new complex(this.r * this.r - this.i * this.i,
- 2 * this.r * this.i);
- },
- dist: function() {
- return Math.sqrt(this.r * this.r + this.i * this.i);
- },
- add: function(aComplex) {
- return new complex(this.r + aComplex.r, this.i + aComplex.i);
- }
-}
-
-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;
-}
-
-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;
- for (var iter = 0; iter < aIterMax; iter++) {
- Zi = 2 * Zr * Zi + Ci;
- Zr = Zr2 - Zi2 + Cr;
-
- Zr2 = Zr * Zr; Zi2 = Zi * Zi;
- if (Zr2 + Zi2 > 256) { break; }
- }
- return iter;
-}
-
-function getColor(aIterValue, aIterMax) {
- let standardizedValue = Math.round(aIterValue * 1024 / aIterMax);
- 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) {
- var palette = [];
- switch (palName) {
- case 'bw':
- for (let i = 0; i < 1024; i++) {
- palette[i] = [255, 255, 255, 255];
- }
- 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] = [cc1, cc2, cc1, 255];
- }
- // inner areas
- for (let i = 0; i < 51; i++) {
- let cc = Math.floor(i * 170 / 50);
- 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] = [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] = [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] = [cc1, cc1, cc2, 255];
- }
- for (let i = 0; i < 338; i++) {
- let cc = 127 + Math.floor(i * 128 / 337);
- palette[686 + i] = [cc, cc, 255, 255];
- }
- palette[1024] = [0, 0, 0, 255];
- break;
- case 'rainbow-linear1':
- for (let i = 0; i < 256; i++) {
- 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];
- }
- 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;
- }
- /*
- 'Standard-Palette (QB-Colors)
- For i = 0 To 1024
- xx = CInt(i * 500 / 1024 + 2)
- If xx <= 15 Then clr = xx
- If xx > 15 Then clr = CInt(Sqr((xx - 15 + 1) * 15 ^ 2 / 485))
- If xx >= 500 Then clr = 0
- palette(i) = QBColor(clr)
- Next
- */
- return palette;
-}
-
-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() {
- 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";
- try {
- // This throws in versions that don't have JaegerMonkey yet --> catch block
- gPref.getBoolPref("javascript.options.methodjit." + scope);
-
- // We have JaegerMonkey, i.e. two prefs for trace/method JIT
- for each (let type in ["tracejit", "methodjit"]) {
- let jitMenuItem = document.getElementById(type + "Enabled");
- jitMenuItem.setAttribute("checked", gPref.getBoolPref("javascript.options." + type + "." + scope));
- }
- }
- catch (e) {
- // We have TraceMonkey only, i.e. one JIT pref, care only that is displayed
- for each (let type in ["tracejit", "methodjit"])
- document.getElementById(type + "Enabled").hidden = true;
- let jitMenuItem = document.getElementById("jitEnabled");
- jitMenuItem.hidden = false;
- jitMenuItem.setAttribute("checked", gPref.getBoolPref("javascript.options.jit." + 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 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(aCanvas.toDataURL("image/png", ""), "UTF8", null);
-
- // prepare to save the canvas data
- var persist = Components.classes["@mozilla.org/embedding/browser/nsWebBrowserPersist;1"]
- .createInstance(Components.interfaces.nsIWebBrowserPersist);
-
- persist.persistFlags = Components.interfaces.nsIWebBrowserPersist.PERSIST_FLAGS_REPLACE_EXISTING_FILES;
- persist.persistFlags |= Components.interfaces.nsIWebBrowserPersist.PERSIST_FLAGS_AUTODETECT_APPLY_CONVERSION;
-
- // save the canvas data to the 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
-function quitApp(aForceQuit) {
- var appStartup = Components.classes['@mozilla.org/toolkit/app-startup;1']
- .getService(Components.interfaces.nsIAppStartup);
-
- // eAttemptQuit will try to close each XUL window, but the XUL window can cancel the quit
- // process if there is unsaved data. eForceQuit will quit no matter what.
- var quitSeverity = aForceQuit ? Components.interfaces.nsIAppStartup.eForceQuit :
- 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