//
// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Authors:
//
// Jordi Mas i Hernadez <jordimash@gmail.com>
//
//
#if NET_2_0
using System.ComponentModel;
using System.Runtime.InteropServices;
using System.Runtime.Serialization;
using System.Security.Permissions;
namespace System.Drawing{
public sealed class BufferedGraphics : IDisposable
{
private Rectangle size;
private Bitmap membmp = null;
private Graphics target = null;
private Graphics source = null;
private BufferedGraphics ()
{
}
internal BufferedGraphics (Graphics targetGraphics, Rectangle targetRectangle)
{
size = targetRectangle;
target = targetGraphics;
membmp = new Bitmap (size.Width, size.Height);
}
~BufferedGraphics ()
{
Dispose (false);
}
public Graphics Graphics {
get {
if (source == null) {
source = Graphics.FromImage (membmp);
}
return source;
}
}
public void Dispose ()
{
Dispose (true);
System.GC.SuppressFinalize (this);
}
private void Dispose (bool disposing)
{
if (disposing == false)
return;
if (membmp != null) {
membmp.Dispose ();
membmp = null;
}
if (source != null) {
source.Dispose ();
source = null;
}
target = null;
}
public void Render ()
{
Render (target);
}
public void Render (Graphics target)
{
if (target == null)
return;
target.DrawImage (membmp, size);
}
[MonoTODO ("The targetDC parameter has no equivalent in libgdiplus.")]
[SecurityPermission (SecurityAction.Demand, UnmanagedCode = true)]
public void Render (IntPtr targetDC)
{
throw new NotImplementedException ();
}
}
}
#endif
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