splitterbase.cs

来自「Fireball.CodeEditor is an source code ed」· CS 代码 · 共 101 行

#region Fireball License
//    Copyright (C) 2005  Sebastian Faltoni sebastian{at}dotnetfireball{dot}net
//
//    This library is free software; you can redistribute it and/or
//    modify it under the terms of the GNU Lesser General Public
//    License as published by the Free Software Foundation; either
//    version 2.1 of the License, or (at your option) any later version.
//
//    This library 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
//    Lesser General Public License for more details.
//
//    You should have received a copy of the GNU Lesser General Public
//    License along with this library; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#endregion
#region Original License
// *****************************************************************************
// 
//  Copyright 2004, Weifen Luo
//  All rights reserved. The software and associated documentation 
//  supplied hereunder are the proprietary information of Weifen Luo
//  and are supplied subject to licence terms.
// 
//  WinFormsUI Library Version 1.0
// *****************************************************************************
#endregion


using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;

namespace Fireball.Docking
{
	internal class SplitterBase : Control
	{
		public SplitterBase()
		{
			SetStyle(ControlStyles.Selectable, false);
		}

		public override DockStyle Dock
		{
			get	{	return base.Dock;	}
			set
			{
				SuspendLayout();
				base.Dock = value;

				if (Dock == DockStyle.Left || Dock == DockStyle.Right)
					Width = SplitterSize;
				else if (Dock == DockStyle.Top || Dock == DockStyle.Bottom)
					Height = SplitterSize;
				else
					Bounds = Rectangle.Empty;

				if (Dock == DockStyle.Left || Dock == DockStyle.Right)
					Cursor = Cursors.VSplit;
				else if (Dock == DockStyle.Top || Dock == DockStyle.Bottom)
					Cursor = Cursors.HSplit;
				else
					Cursor = Cursors.Default;
					
				ResumeLayout();
			}
		}

		protected virtual int SplitterSize
		{
			get	{	return 0;	}
		}

		protected override void OnMouseDown(MouseEventArgs e)
		{
			base.OnMouseDown(e);

			if (e.Button != MouseButtons.Left)
				return;

			StartDrag();
		}

		protected virtual void StartDrag()
		{
		}

		protected override void WndProc(ref Message m)
		{
			if (m.Msg == (int)Win32.Msgs.WM_MOUSEACTIVATE)
				return;

			base.WndProc(ref m);
		}
	}
}