GtkSharp/sample/GtkDemo/DemoMain.cs

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//
// DemoMain.cs, port of main.c from gtk-demo
//
// Author: Daniel Kornhauser <dkor@alum.mit.edu>
//
// Copyright (C) 2003, Ximian Inc.
using System;
using System.IO;
using System.Reflection;
using Gdk;
using Gtk;
using Pango;
namespace GtkDemo
{
public class DemoMain
{
private Gtk.Window window;
private TextBuffer infoBuffer = new TextBuffer (null);
private TextBuffer sourceBuffer = new TextBuffer (null);
private TreeView treeView;
private TreeStore store;
private TreeIter oldSelection = TreeIter.Zero;
public static void Main (string[] args)
{
Application.Init ();
new DemoMain ();
Application.Run ();
}
public DemoMain ()
{
SetupDefaultIcon ();
window = new Gtk.Window ("Gtk# Code Demos");
window.SetDefaultSize (600, 400);
window.DeleteEvent += new DeleteEventHandler (WindowDelete);
HBox hbox = new HBox (false, 0);
window.Add (hbox);
treeView = CreateTree ();
hbox.PackStart (treeView, false, false, 0);
Notebook notebook = new Notebook ();
hbox.PackStart (notebook, true, true, 0);
notebook.AppendPage (CreateText (infoBuffer, false), new Label ("_Info"));
notebook.AppendPage (CreateText (sourceBuffer, true), new Label ("_Source"));
window.ShowAll ();
}
private void LoadFile (string filename)
{
Stream file = Assembly.GetExecutingAssembly ().GetManifestResourceStream (filename);
if (file != null)
{
LoadStream (file, filename);
}
else if (File.Exists (filename))
{
file = File.OpenRead (filename);
LoadStream (file, filename);
}
else
{
infoBuffer.Text = String.Format ("{0} was not found.", filename);
sourceBuffer.Text = String.Empty;
}
Fontify ();
}
private void LoadStream (Stream file, string filename)
{
StreamReader sr = new StreamReader (file);
string s = sr.ReadToEnd ();
sr.Close ();
file.Close ();
infoBuffer.Text = filename;
sourceBuffer.Text = s;
}
// this is to highlight the sourceBuffer
private void Fontify ()
{
}
private void SetupDefaultIcon ()
{
Gdk.Pixbuf pixbuf = Gdk.Pixbuf.LoadFromResource ("gtk-logo-rgb.gif");
if (pixbuf != null)
{
// The gtk-logo-rgb icon has a white background
// make it transparent instead
Pixbuf transparent = pixbuf.AddAlpha (true, 0xff, 0xff, 0xff);
Gtk.Window.DefaultIconList = new Gdk.Pixbuf [] {transparent};
}
}
private TreeView CreateTree ()
{
TreeView view = new TreeView ();
view.Model = FillTree ();
CellRendererText cr = new CellRendererText ();
TreeViewColumn column = new TreeViewColumn ("Widget (double click for demo)", cr, "text", 0);
column.AddAttribute (cr, "style" , 2);
view.AppendColumn (column);
view.Selection.Changed += new EventHandler (OnTreeChanged);
view.RowActivated += new RowActivatedHandler (OnRowActivated);
view.ExpandAll ();
view.SetSizeRequest (200, -1);
view.Selection.Mode = Gtk.SelectionMode.Browse;
return view;
}
private ScrolledWindow CreateText (TextBuffer buffer, bool IsSource)
{
ScrolledWindow scrolledWindow = new ScrolledWindow ();
scrolledWindow.SetPolicy (PolicyType.Automatic, PolicyType.Automatic);
scrolledWindow.ShadowType = ShadowType.In;
TextView textView = new TextView (buffer);
textView.Editable = false;
textView.CursorVisible = false;
scrolledWindow.Add (textView);
if (IsSource)
{
FontDescription fontDescription = FontDescription.FromString ("Courier 12");
textView.ModifyFont (fontDescription);
textView.WrapMode = Gtk.WrapMode.None;
}
else
{
// Make it a bit nicer for text
textView.WrapMode = Gtk.WrapMode.Word;
textView.PixelsAboveLines = 2;
textView.PixelsBelowLines = 2;
}
return scrolledWindow;
}
private TreeStore FillTree ()
{
// title, filename, italic
store = new TreeStore (typeof (string), typeof (string), typeof (bool));
TreeIter parent;
store.AppendValues ("Application Window (75% complete)", "DemoApplicationWindow.cs", false);
store.AppendValues ("Button Boxes", "DemoButtonBox.cs", false);
store.AppendValues ("Change Display (0%)", "DemoChangeDisplay.cs", false);
store.AppendValues ("Color Selector", "DemoColorSelection.cs", false);
store.AppendValues ("Dialog and Message Boxes", "DemoDialog.cs", false);
store.AppendValues ("Drawing Area", "DemoDrawingArea.cs", false);
store.AppendValues ("Images", "DemoImages.cs", false);
store.AppendValues ("Item Factory (5% complete)", "DemoItemFactory.cs", false);
store.AppendValues ("Menus", "DemoMenus.cs", false);
store.AppendValues ("Paned Widget", "DemoPanes.cs", false);
store.AppendValues ("Pixbuf", "DemoPixbuf.cs", false);
store.AppendValues ("Size Groups", "DemoSizeGroup.cs", false);
store.AppendValues ("Stock Item and Icon Browser (10% complete)", "DemoStockBrowser.cs", false);
parent = store.AppendValues ("Text Widget");
store.AppendValues (parent, "HyperText (50%)", "DemoHyperText.cs", false);
store.AppendValues (parent, "Multiple Views (95%)", "DemoTextView.cs", false);
parent = store.AppendValues ("Tree View");
store.AppendValues (parent, "Editable Cells", "DemoEditableCells", false);
store.AppendValues (parent, "List Store", "DemoListStore.cs", false);
store.AppendValues (parent, "Tree Store", "DemoTreeStore.cs", false);
return store;
}
//FIXME: italicize selected row
private void OnTreeChanged (object o, EventArgs args)
{
TreeIter iter;
TreeModel model;
if (treeView.Selection.GetSelected (out model, out iter))
{
string file = (string) model.GetValue (iter, 1);
if (file != null)
LoadFile (file);
model.SetValue (iter, 2, true);
if (!oldSelection.Equals (TreeIter.Zero))
model.SetValue (oldSelection, 2, false);
oldSelection = iter;
}
}
private void OnRowActivated (object o, RowActivatedArgs args)
{
switch (args.Path.ToString ()) {
case "0":
new DemoApplicationWindow ();
break;
case "1":
new DemoButtonBox ();
break;
case "2":
//
break;
case "3":
new DemoColorSelection ();
break;
case "4":
new DemoDialog ();
break;
case "5":
new DemoDrawingArea ();
break;
case "6":
new DemoImages ();
break;
case "7":
new DemoItemFactory ();
break;
case "8":
new DemoMenus ();
break;
case "9":
new DemoPanes ();
break;
case "10":
new DemoPixbuf ();
break;
case "11":
new DemoSizeGroup ();
break;
case "12":
new DemoStockBrowser ();
break;
case "13":
ToggleRow (args.Path);
break;
case "13:0":
new DemoHyperText ();
break;
case "13:1":
new DemoTextView ();
break;
case "14":
ToggleRow (args.Path);
break;
case "14:0":
new DemoEditableCells ();
break;
case "14:1":
new DemoListStore ();
break;
case "14:2":
new DemoTreeStore ();
break;
default:
break;
}
}
void ToggleRow (TreePath path)
{
bool isExpanded = treeView.GetRowExpanded (path);
if (isExpanded)
treeView.CollapseRow (path);
else
treeView.ExpandRow (path, false);
}
private void WindowDelete (object o, DeleteEventArgs args)
{
Application.Quit ();
args.RetVal = true;
}
}
}