DiagramControl.cs

//    XSDDiagram - A XML Schema Definition file viewer
//    Copyright (C) 2006-2011  Regis COSNIER
//
//    This program is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    This program is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with this program; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

using System.Windows.Forms;

namespace XSDDiagram
{
	public partial class DiagramControl : UserControl
	{
		//private static int WM_SETFOCUS = 0x0007;

		public DiagramControl()
		{
			InitializeComponent();

			this.SetStyle(
			ControlStyles.UserPaint |
			ControlStyles.AllPaintingInWmPaint |
			ControlStyles.OptimizedDoubleBuffer, true);
		}

        protected override bool IsInputKey(Keys keyData)
        {
            switch (keyData)
            {
                case Keys.Right:
                case Keys.Left:
                case Keys.Up:
                case Keys.Down:
                case Keys.PageDown:
                case Keys.PageUp:
                case Keys.Home:
                case Keys.End:
                case Keys.Delete:
                    return true;
                case Keys.Shift | Keys.Right:
                case Keys.Shift | Keys.Left:
                case Keys.Shift | Keys.Up:
                case Keys.Shift | Keys.Down:
                case Keys.Shift | Keys.PageDown:
                case Keys.Shift | Keys.PageUp:
                case Keys.Shift | Keys.Home:
                case Keys.Shift | Keys.End:
                case Keys.Shift | Keys.Delete:
                    return true;
            }
            return base.IsInputKey(keyData);
        }

        protected override void WndProc(ref Message m)
		{
			//if (m.Msg == WM_SETFOCUS)
			//	return;
			base.WndProc(ref m);
		}
	}
}