X-Git-Url: https://git-public.kairo.at/?p=mandelbrot.git;a=blobdiff_plain;f=xulapp%2Fchrome%2Fmandelbrot%2Fcontent%2Fmandelbrot.js;h=7a67687edc3f7a951dad7d89f8396962fe13c8d0;hp=aab0f02b884861fc98ea39afac4be8a042c97c73;hb=4d8e7dcbb2fdcb51faf6e0c2f3ba4c24c8b9e7b3;hpb=2cb9a6b558e687bc39584fb763a9455b8db00204

diff --git a/xulapp/chrome/mandelbrot/content/mandelbrot.js b/xulapp/chrome/mandelbrot/content/mandelbrot.js
index aab0f02..7a67687 100644
--- a/xulapp/chrome/mandelbrot/content/mandelbrot.js
+++ b/xulapp/chrome/mandelbrot/content/mandelbrot.js
@@ -52,27 +52,80 @@ function drawImage() {
   let canvas = document.getElementById("mbrotImage");
   let context = canvas.getContext("2d");
 
+  document.getElementById("drawButton").hidden = true;
+
   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 = [];
@@ -85,8 +138,8 @@ function drawLine(line, canvas, context, iterMax, algorithm) {
     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();
 }
 
@@ -282,9 +335,45 @@ function drawPoint(context, img_x, img_y, C, iterMax, algorithm) {
 
 /***** pure UI functions *****/
 
+var zoomstart;
+
+function mouseevent(etype, event) {
+  let canvas = document.getElementById("mbrotImage");
+  switch (etype) {
+    case 'down':
+      if (event.button == 0)
+        // left button - start dragzoom
+        zoomstart = {x: event.clientX - canvas.offsetLeft,
+                     y: event.clientY - canvas.offsetTop};
+      break;
+    case 'up':
+      if (event.button == 0)
+        alert(zoomstart.x + ',' + zoomstart.y + '-' +
+              (event.clientX - canvas.offsetLeft) + ',' +
+              (event.clientY - canvas.offsetTop)); 
+      zoomstart = undefined;
+    break;
+  }
+}
+
 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() {
@@ -348,6 +437,10 @@ function setPalette(aPaletteID) {
   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"));
@@ -388,21 +481,41 @@ function setAlgorithm(algoID) {
   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 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");
+}
 
+/***** 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"]
@@ -411,14 +524,8 @@ function saveCanvas(canvas, destFile) {
   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
@@ -432,3 +539,40 @@ function quitApp(aForceQuit) {
                                   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);
+  }
+}