add prompts: bookmark name input, zoom loading confirm. base implementation, needs...

[mandelbrot.git] / xulapp / chrome / mandelbrot / content / mandelbrot.js

diff --git a/xulapp/chrome/mandelbrot/content/mandelbrot.js b/xulapp/chrome/mandelbrot/content/mandelbrot.js
index 7762362591c4664798a8f9344df9865b91d59fae..d887b82e71f0d9dcd620d449d34ff28fdad48f31 100644 (file)
--- a/xulapp/chrome/mandelbrot/content/mandelbrot.js
+++ b/xulapp/chrome/mandelbrot/content/mandelbrot.js
@@ -52,37 +52,80 @@ function drawImage() {
   let canvas = document.getElementById("mbrotImage");
   let context = canvas.getContext("2d");
 
   let canvas = document.getElementById("mbrotImage");
   let context = canvas.getContext("2d");
 

+  document.getElementById("drawButton").hidden = true;
+

   document.getElementById("statusLabel").value =
       document.getElementById("mbrotBundle").getString("statusDrawing");
 
   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");
 
   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();
 
   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;
-    try {
-      Cr_min = gPref.getCharPref("mandelbrot.last_image.Cr_min");
-      Cr_max = gPref.getCharPref("mandelbrot.last_image.Cr_max");
-    }
-    catch (e) { }
+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 Cr_scale = Cr_max - Cr_min;
 

-    let Ci_min = -1.5;
-    let Ci_max = 1.5;
-    try {
-      Cr_min = gPref.getCharPref("mandelbrot.last_image.Ci_min");
-      Cr_max = gPref.getCharPref("mandelbrot.last_image.Ci_max");
-    }
-    catch (e) { }
+    let Ci_min = dimensions[2];
+    let Ci_max = dimensions[3];

     let Ci_scale = Ci_max - Ci_min;
 
     let pixels = [];
     let Ci_scale = Ci_max - Ci_min;
 
     let pixels = [];


@@ -95,8 +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)
     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();
 }
 
       EndCalc();
 }
 


@@ -105,6 +148,7 @@ function EndCalc() {
   let timeUsed = (endTime.getTime() - gStartTime.getTime()) / 1000;
   document.getElementById("statusLabel").value =
       document.getElementById("mbrotBundle").getFormattedString("statusTime", [timeUsed.toFixed(3)]);
   let timeUsed = (endTime.getTime() - gStartTime.getTime()) / 1000;
   document.getElementById("statusLabel").value =
       document.getElementById("mbrotBundle").getFormattedString("statusTime", [timeUsed.toFixed(3)]);

+  gStartTime = 0;

 }
 
 function complex(aReal, aImag) {
 }
 
 function complex(aReal, aImag) {


@@ -292,6 +336,32 @@ function drawPoint(context, img_x, img_y, C, iterMax, algorithm) {
 
 /***** pure UI functions *****/
 
 
 /***** 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) {
+        var prompts = Components.classes["@mozilla.org/embedcomp/prompt-service;1"]
+                                .getService(Components.interfaces.nsIPromptService);
+        var ok = prompts.confirm(null, "XXX Zoom in",
+            zoomstart.x + ',' + zoomstart.y + '-' +
+            (event.clientX - canvas.offsetLeft) + ',' +
+            (event.clientY - canvas.offsetTop));
+        // ok is now true if OK was clicked, and false if cancel was clicked
+      }
+      zoomstart = undefined;
+    break;
+  }
+}
+

 function saveImage() {
   const bundle = document.getElementById("mbrotBundle");
   const nsIFilePicker = Components.interfaces.nsIFilePicker;
 function saveImage() {
   const bundle = document.getElementById("mbrotBundle");
   const nsIFilePicker = Components.interfaces.nsIFilePicker;


@@ -312,6 +382,91 @@ function saveImage() {
   }
 }
 
   }
 }
 

+function updateBookmarkMenu(aParent) {
+  document.getElementById("bookmarkSave").disabled =
+    (!document.getElementById("drawButton").hidden || (gStartTime > 0));
+
+  while (aParent.hasChildNodes() &&
+         aParent.lastChild.id != 'bookmarkSeparator')
+    aParent.removeChild(aParent.lastChild);
+
+  var 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()) {
+    var connection = Components.classes["@mozilla.org/storage/service;1"]
+                               .getService(Components.interfaces.mozIStorageService)
+                               .openDatabase(file);
+    try {
+      if (connection.tableExists("bookmarks")) {
+        var statement = connection.createStatement(
+            "SELECT name FROM bookmarks ORDER BY ROWID DESC");
+        while (statement.executeStep())
+          aParent.appendChild(document.createElement("menuitem"))
+                 .setAttribute("label", statement.getString(0));
+        statement.reset();
+        statement.finalize();
+        return;
+      }
+    } finally {
+      connection.close();
+    }
+  }
+  // Create the "Nothing Available" Menu item and disable it.
+  var na = aParent.appendChild(document.createElement("menuitem"));
+  na.setAttribute("label",
+                  document.getElementById("mbrotBundle").getString("noBookmarks"));
+  na.setAttribute("disabled", "true");
+}
+
+function callBookmark(evtarget) {
+}
+
+function saveBookmark() {
+  // retrieve wanted bookmark name with a prompt
+  var mbrotBundle = document.getElementById("mbrotBundle");
+  var prompts = Components.classes["@mozilla.org/embedcomp/prompt-service;1"]
+                          .getService(Components.interfaces.nsIPromptService);
+  var input = {value: ""}; // empty default value
+  var ok = prompts.prompt(null, "XXX Title", "XXX Please enter a name for the bookmark", 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
+
+  var bmName = input.value;
+
+  // Open or create the bookmarks database.
+  var file = Components.classes["@mozilla.org/file/directory_service;1"]
+                       .getService(Components.interfaces.nsIProperties)
+                       .get("ProfD", Components.interfaces.nsIFile);
+  file.append("mandelbookmarks.sqlite");
+  var 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
+  var 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, gPref.getIntPref("mandelbrot.iteration_max"));
+  statement.bindStringParameter(2, parseFloat(gPref.getCharPref("mandelbrot.last_image.Cr_min")));
+  statement.bindStringParameter(3, parseFloat(gPref.getCharPref("mandelbrot.last_image.Cr_max")));
+  statement.bindStringParameter(4, parseFloat(gPref.getCharPref("mandelbrot.last_image.Ci_min")));
+  statement.bindStringParameter(5, parseFloat(gPref.getCharPref("mandelbrot.last_image.Ci_max")));
+  statement.execute();
+  statement.finalize();
+  connection.commitTransaction();
+  connection.close();
+}
+

 function updateIterMenu() {
   try {
     var currentIter = gPref.getIntPref("mandelbrot.iteration_max");
 function updateIterMenu() {
   try {
     var currentIter = gPref.getIntPref("mandelbrot.iteration_max");


@@ -417,6 +572,29 @@ function setAlgorithm(algoID) {
   gPref.setCharPref("mandelbrot.use_algorithm", 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;
+  }
+
+  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");
+}
+

 /***** helper functions from external sources *****/
 
 // function below is based on http://developer.mozilla.org/en/docs/Code_snippets:Canvas
 /***** helper functions from external sources *****/
 
 // function below is based on http://developer.mozilla.org/en/docs/Code_snippets:Canvas


@@ -452,3 +630,40 @@ function quitApp(aForceQuit) {
                                   Components.interfaces.nsIAppStartup.eAttemptQuit;
   appStartup.quit(quitSeverity);
 }
                                   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);
+  }
+}