document.getElementById("statusLabel").value =
document.getElementById("mbrotBundle").getString("statusDrawing");
+ 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 < -2) || (Cr_min > 2) ||
+ (Cr_max < -2) || (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);
+
+ 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) || (Ci_min > 2) ||
+ (Ci_max < -2) || (Ci_max > 2) || (Ci_min >= Ci_max)) {
+ Ci_min = -2.0; Ci_max = 1.0;
+ }
+ gPref.setCharPref("mandelbrot.last_image.Ci_min", Ci_min);
+ gPref.setCharPref("mandelbrot.last_image.Ci_max", Ci_max);
+
let iterMax = gPref.getIntPref("mandelbrot.iteration_max");
let algorithm = gPref.getCharPref("mandelbrot.use_algorithm");
- context.fillStyle = "rgb(255, 255, 255)";
+ let iWidth = 0;
+ try {
+ iWidth = gPref.getIntPref("mandelbrot.image.width");
+ }
+ catch (e) { }
+ if ((iWidth < 10) || (iWidth > 5000)) {
+ iWidth = 300;
+ gPref.setIntPref("mandelbrot.image.width", iWidth);
+ }
+ let iHeight = 0;
+ try {
+ iHeight = gPref.getIntPref("mandelbrot.image.height");
+ }
+ catch (e) { }
+ if ((iHeight < 10) || (iHeight > 5000)) {
+ iHeight = 300;
+ gPref.setIntPref("mandelbrot.image.height", iHeight);
+ }
+
+ 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, canvas, context, iterMax, algorithm);
+ drawLine(0, [Cr_min, Cr_max, Ci_min, Ci_max],
+ canvas, context, iterMax, algorithm);
}
-function drawLine(line, canvas, context, iterMax, algorithm) {
- let Cr_min = -2.0;
- let Cr_max = 1.0;
+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 = -1.5;
- let Ci_max = 1.5;
+ let Ci_min = dimensions[2];
+ let Ci_max = dimensions[3];
let Ci_scale = Ci_max - Ci_min;
let pixels = [];
context.putImageData({width: canvas.width, height: pixels.length/4/canvas.width, data: pixels}, 0, line);
if (img_y < canvas.height)
- setTimeout(drawLine, 0, img_y, canvas, context, iterMax, algorithm);
- else
+ setTimeout(drawLine, 0, img_y, dimensions, canvas, context, iterMax, algorithm);
+ else if (gStartTime)
EndCalc();
}
/***** pure UI functions *****/
function saveImage() {
- // XXX: should call filepicker!
- saveCanvas(document.getElementById("mbrotImage"), "/home/robert/temp/canvas-save.png")
+ const bundle = document.getElementById("mbrotBundle");
+ const nsIFilePicker = Components.interfaces.nsIFilePicker;
+ var fp = null;
+ try {
+ fp = Components.classes["@mozilla.org/filepicker;1"]
+ .createInstance(nsIFilePicker);
+ } catch (e) {}
+ if (!fp) return;
+ var promptString = bundle.getString("savePrompt");
+ fp.init(window, promptString, nsIFilePicker.modeSave);
+ fp.appendFilter(bundle.getString("pngFilterName"), "*.png");
+ fp.defaultString = "mandelbrot.png";
+
+ var fpResult = fp.show();
+ if (fpResult != nsIFilePicker.returnCancel) {
+ saveCanvas(document.getElementById("mbrotImage"), fp.file);
+ }
}
function updateIterMenu() {
gColorPalette = getColorPalette(aPaletteID);
}
+function imgSettings() {
+ window.openDialog("chrome://mandelbrot/content/image-settings.xul");
+}
+
function updateDebugMenu() {
var jitMenuItem = document.getElementById("jitEnabled");
jitMenuItem.setAttribute("checked", gPref.getBoolPref("javascript.options.jit.chrome"));
gPref.setCharPref("mandelbrot.use_algorithm", algoID);
}
+function addonsManager(aPane) {
+ var 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;
+ }
-/***** helper functions from external sources *****/
+ 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 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);
+/***** 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