[Gtk-sharp-list] Gdk.Color bug ?

[Daniel Kornhauser]

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 Gtk.Color is not working for me. I'm using cvs from two days ago. I
attached a modified standalone example of TestColorSelection, can
somebody run it and tell me if it functions correctly. That is the color
hex string in the Widget is written correctly with the Console.WriteLine
?

You can compile it with
mcs TestColorSelection.cs -r gtk-sharp.dll -r gdk-sharp.dll
and run it with
mono TestColorSelection.exe

			Daniel.

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//
// TestColorSelection.cs
//
// Author: Duncan Mak  (duncan@ximian.com)
//
// Copyright (C) 2002, Duncan Mak, Ximian Inc.
//

using System;
using System.Text;

using Gtk;
using GtkSharp;

namespace WidgetViewer {
	public class TestColorSelection
	{
		static ColorSelectionDialog window = null;
		static Dialog dialog = null;

		public static void Main ()
		{
			Application.Init ();
			Gtk.Window window = new Gtk.Window("Color Test");
			Gtk.Window dialog =  Create ();
			window.ShowAll();
			dialog.ShowAll();
			Application.Run ();
		}

		public static Gtk.Window Create ()
		{
			HBox options = new HBox (false, 0);
			CheckButton check_button = null;

			window = new ColorSelectionDialog ("Color selection dialog");
			window.ColorSelection.HasOpacityControl = true;
			window.ColorSelection.HasPalette = true;

			window.SetDefaultSize (250, 200);
			window.VBox.PackStart (options, false, false, 0);
			window.VBox.BorderWidth = 10;

			check_button = new CheckButton("Show Opacity");
			check_button.Active = true;
			options.PackStart (check_button, false, false, 0);
			check_button.Toggled += new EventHandler (Opacity_Callback);

			check_button = new CheckButton("Show Palette");
			check_button.Active = true;
			options.PackEnd (check_button, false, false, 0);
			check_button.Toggled += new EventHandler (Palette_Callback);

			window.ColorSelection.ColorChanged += new EventHandler (Color_Changed);
			window.OkButton.Clicked += new EventHandler (Color_Selection_OK);
			window.CancelButton.Clicked += new EventHandler (Color_Selection_Cancel); 

			options.ShowAll ();

			return window;
		}

		static void Opacity_Callback (object o, EventArgs args)
		{
			window.ColorSelection.HasOpacityControl = ((ToggleButton )o).Active;
		}

		static void Palette_Callback (object o, EventArgs args)
		{
			window.ColorSelection.HasPalette = ((ToggleButton )o).Active;
		}

		static string HexFormat (Gdk.Color color)
		{
			StringBuilder s = new StringBuilder ();
			ushort[] vals = { color.red, color.green, color.blue };
			char[] hexchars = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
									 'A', 'B', 'C', 'D', 'E', 'F'};

			s.Append ('#');
			foreach (ushort val in vals) {
				/* Convert to a range of 0-255, then lookup the
				 * digit for each half-byte */
				byte rounded = (byte) (val >> 8);
				s.Append (hexchars[(rounded & 0xf0) >> 4]);
				s.Append (hexchars[rounded & 0x0f]);
			}

			return s.ToString ();
		}
		
		static void Color_Changed (object o, EventArgs args)
		{
		//	Gdk.Color color = window.ColorSelection.CurrentColor;
		//	Console.WriteLine (HexFormat (color));
		}

		static void Color_Selection_OK (object o, EventArgs args)
		{
			Gdk.Color selected = window.ColorSelection.CurrentColor;
			if (selected == Gdk.Color.Zero)
				Console.WriteLine ("Color selection failed.");
			else {
				window.Hide ();
				Display_Result (selected);
			}
		}

		static void Color_Selection_Cancel (object o, EventArgs args)
		{
			window.Destroy ();
		}

		static void Dialog_Ok (object o, EventArgs args)
		{
			dialog.Destroy ();
			window.ShowAll ();
		}

		static void Display_Result (Gdk.Color color)
		{
			if (color == Gdk.Color.Zero)
				Console.WriteLine ("Null color");

			dialog = new Dialog ();
			dialog.Title = "Selected Color: " + HexFormat (color);
			dialog.HasSeparator = true;

			DrawingArea da = new DrawingArea ();

			da.ModifyBg (StateType.Normal, color);

			dialog.VBox.BorderWidth = 10;
			dialog.VBox.PackStart (da, true, true, 10);
			dialog.SetDefaultSize (200, 200);

			Button button = new Button (Stock.Ok);
			button.Clicked += new EventHandler (Dialog_Ok);
			button.CanDefault = true;
			dialog.ActionArea.PackStart (button, true, true, 0);
			button.GrabDefault ();

			 Console.WriteLine ("red {0}", color.red);
			 Console.WriteLine ("green {0}", color.green);
			 Console.WriteLine ("blue {0}", color.blue);
			 Console.WriteLine (HexFormat (color));

			dialog.ShowAll ();
		}

		static void Close_Button (object o, EventArgs args)
		{
			Color_Selection_Cancel (o, args);
		}
	}
}

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