add demo icon view

svn path=/trunk/gtk-sharp/; revision=43422

sample/GtkDemo/DemoIconView.cs

@@ -0,0 +1,158 @@
+using System;
+using System.IO;
+using Gtk;
+
+namespace GtkDemo
+{
+	[Demo ("Icon View", "DemoIconView.cs")]
+	public class DemoIconView : Window
+	{
+		const int COL_PATH = 0;
+		const int COL_DISPLAY_NAME = 1;
+		const int COL_PIXBUF = 2;
+		const int COL_IS_DIRECTORY = 3;
+
+		DirectoryInfo parent = new DirectoryInfo ("/");
+		Gdk.Pixbuf dirIcon, fileIcon;
+		ListStore store;
+		ToolButton upButton;
+
+		public DemoIconView () : base ("Gtk.IconView demo")
+		{
+			SetDefaultSize (650, 400);
+			DeleteEvent += new DeleteEventHandler (OnWinDelete);
+
+			VBox vbox = new VBox (false, 0);
+			Add (vbox);
+
+			Toolbar toolbar = new Toolbar ();
+			vbox.PackStart (toolbar, false, false, 0);
+
+			upButton = new ToolButton (Stock.GoUp);
+			upButton.IsImportant = true;
+			upButton.Sensitive = false;
+			toolbar.Insert (upButton, -1);
+
+			ToolButton homeButton = new ToolButton (Stock.Home);
+			homeButton.IsImportant = true;
+			toolbar.Insert (homeButton, -1);
+
+			// FIXME: use the real icons later 
+			fileIcon = Gdk.Pixbuf.LoadFromResource ("MonoIcon.png");
+			dirIcon = Gdk.Pixbuf.LoadFromResource ("MonoIcon.png");
+
+			ScrolledWindow sw = new ScrolledWindow ();
+			sw.ShadowType = ShadowType.EtchedIn;
+			sw.SetPolicy (PolicyType.Automatic, PolicyType.Automatic);
+			vbox.PackStart (sw, true, true, 0);
+
+			// Create the store and fill it with the contents of '/'
+			store = CreateStore ();
+			FillStore ();
+
+			IconView iconView = new IconView (store);
+			iconView.SelectionMode = SelectionMode.Multiple;
+
+			upButton.Clicked += OnUpClicked;
+			homeButton.Clicked += OnHomeClicked;
+
+			iconView.TextColumn = COL_DISPLAY_NAME;
+			iconView.PixbufColumn = COL_PIXBUF;
+
+			iconView.ItemActivated += new ItemActivatedHandler (OnItemActivated);
+			sw.Add (iconView);
+			iconView.GrabFocus ();
+
+			ShowAll ();
+		}
+
+		ListStore CreateStore ()
+		{
+			// path, name, pixbuf, is_dir
+			ListStore store = new ListStore (typeof (string), typeof (string), typeof (Gdk.Pixbuf), typeof (bool));
+
+			// Set sort column and function
+			store.SetDefaultSortFunc (SortFunc);
+			store.SetSortColumnId (COL_DISPLAY_NAME, SortType.Ascending);
+
+			return store;
+		}
+
+		void FillStore ()
+		{
+			// first clear the store
+			store.Clear ();
+
+			// Now go through the directory and extract all the file information
+			if (!parent.Exists)
+				return;
+
+			foreach (DirectoryInfo di in parent.GetDirectories ())
+			{
+				if (!di.Name.StartsWith ("."))
+					store.AppendValues (di.FullName, di.Name, dirIcon, false);
+			}
+			
+			foreach (FileInfo file in parent.GetFiles ())
+			{
+				if (!file.Name.StartsWith ("."))
+					store.AppendValues (file.FullName, file.Name, fileIcon, false);
+			}
+		}
+
+		int SortFunc (TreeModel model, TreeIter a, TreeIter b)
+		{
+			// sorts folders before files
+			bool a_is_dir = (bool) model.GetValue (a, COL_IS_DIRECTORY);
+			bool b_is_dir = (bool) model.GetValue (b, COL_IS_DIRECTORY);
+			string a_name = (string) model.GetValue (a, COL_DISPLAY_NAME);
+			string b_name = (string) model.GetValue (b, COL_DISPLAY_NAME);
+
+			if (!a_is_dir && b_is_dir)
+				return 1;
+			else if (a_is_dir && !b_is_dir)
+				return -1;
+			else
+				return String.Compare (a_name, b_name);
+		}
+
+		void OnHomeClicked (object sender, EventArgs a)
+		{
+			parent = new DirectoryInfo (Environment.GetFolderPath (Environment.SpecialFolder.Personal));
+			FillStore ();
+			upButton.Sensitive = true;
+		}
+
+		void OnItemActivated (object sender, ItemActivatedArgs a)
+		{
+			TreeIter iter;
+			store.GetIter (out iter, a.Path);
+			string path = (string) store.GetValue (iter, COL_PATH);
+			bool isDir = (bool) store.GetValue (iter, COL_IS_DIRECTORY);
+
+			if (!isDir)
+				return;
+
+			// Replace parent with path and re-fill the model
+			parent = new DirectoryInfo (path);
+			FillStore ();
+
+			// Sensitize the up button
+			upButton.Sensitive = true;
+		}
+
+		void OnUpClicked (object sender, EventArgs a)
+		{
+			parent = parent.Parent;
+			FillStore ();
+			upButton.Sensitive = (parent.FullName == "/" ? false : true);
+		}
+
+		void OnWinDelete (object sender, DeleteEventArgs a)
+		{
+			Hide ();
+			Dispose ();
+		}
+	}
+}
+

sample/GtkDemo/Makefile.am

@@ -19,6 +19,7 @@ sources = \
 	DemoEntryCompletion.cs	\
 	DemoExpander.cs			\
 	DemoHyperText.cs		\
+	DemoIconView.cs			\
 	DemoImages.cs			\
 	DemoListStore.cs		\
 	DemoMain.cs				\

sample/GtkDemo/TODO

@@ -10,8 +10,8 @@ RotatedText
  - doesn't quite work yet
 
 IconView
- - missing
-
-Chang Display
+ - fix icons
+
+Change Display
  - missing