118 lines
3.1 KiB
C#
118 lines
3.1 KiB
C#
//
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// System.Windows.Forms.Design.WndProcRouter
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//
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// Authors:
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// Ivan N. Zlatev (contact i-nZ.net)
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//
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// (C) 2006-2007 Ivan N. Zlatev
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.ComponentModel;
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using System.ComponentModel.Design;
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using System.Windows.Forms;
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using System.Drawing;
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using System.Drawing.Design;
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using System.Collections;
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// Automatically reroutes Messages to the designer
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//
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namespace System.Windows.Forms.Design
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{
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internal class WndProcRouter : IWindowTarget, IDisposable
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{
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private IWindowTarget _oldTarget;
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private IMessageReceiver _receiver;
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private Control _control;
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public WndProcRouter (Control control, IMessageReceiver receiver)
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{
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if (control == null)
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throw new ArgumentNullException ("control");
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if (receiver == null)
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throw new ArgumentNullException ("receiver");
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_oldTarget = control.WindowTarget;
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_control = control;
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_receiver = receiver;
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}
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public Control Control {
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get { return _control; }
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}
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public IWindowTarget OldWindowTarget {
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get { return _oldTarget; }
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}
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// Route the message to the control
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//
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public void ToControl (ref Message m)
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{
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//Console.WriteLine ("Control: " + ((Native.Msg)m.Msg).ToString ());
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if (_oldTarget != null)
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_oldTarget.OnMessage (ref m);
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}
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public void ToSystem (ref Message m)
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{
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//Console.WriteLine ("System: " + ((Native.Msg)m.Msg).ToString ());
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Native.DefWndProc (ref m);
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}
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// Just pass it to the old IWindowTarget
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//
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void IWindowTarget.OnHandleChange (IntPtr newHandle)
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{
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if (_oldTarget != null)
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_oldTarget.OnHandleChange (newHandle);
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}
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// Route the msg to the designer if available, else to
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// control itself.
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//
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void IWindowTarget.OnMessage (ref Message m)
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{
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//Console.WriteLine ("Message: " + ((Native.Msg)m.Msg).ToString ());
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if (_receiver != null)
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_receiver.WndProc (ref m);
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else
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this.ToControl (ref m);
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}
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// Disposes and puts back the old IWindowTarget
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//
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public void Dispose ()
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{
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if (_control != null)
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_control.WindowTarget = _oldTarget;
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_control = null;
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_oldTarget = null;
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}
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}
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}
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