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//
// CGLayer.cs: Implements the managed CGLayer
//
// Authors: Mono Team
//
// Copyright 2009 Novell, Inc
// Copyright 2011, 2012 Xamarin Inc
//
// 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.
//
using System;
using System.Drawing;
using System.Runtime.InteropServices;
using MonoMac.ObjCRuntime;
using MonoMac.Foundation;
namespace MonoMac.CoreGraphics {
public class CGLayer : INativeObject, IDisposable {
IntPtr handle;
internal CGLayer (IntPtr handle)
{
if (handle == IntPtr.Zero)
throw new Exception ("Invalid parameters to layer creation");
this.handle = handle;
CGLayerRetain (handle);
}
[Preserve (Conditional=true)]
internal CGLayer (IntPtr handle, bool owns)
{
if (!owns)
CGLayerRetain (handle);
this.handle = handle;
}
~CGLayer ()
{
Dispose (false);
}
public void Dispose ()
{
Dispose (true);
GC.SuppressFinalize (this);
}
public IntPtr Handle {
get { return handle; }
}
[DllImport (Constants.CoreGraphicsLibrary)]
extern static void CGLayerRelease (IntPtr handle);
[DllImport (Constants.CoreGraphicsLibrary)]
extern static void CGLayerRetain (IntPtr handle);
protected virtual void Dispose (bool disposing)
{
if (handle != IntPtr.Zero){
CGLayerRelease (handle);
handle = IntPtr.Zero;
}
}
[DllImport (Constants.CoreGraphicsLibrary)]
extern static SizeF CGLayerGetSize (IntPtr layer);
public SizeF Size {
get {
return CGLayerGetSize (handle);
}
}
[DllImport (Constants.CoreGraphicsLibrary)]
extern static IntPtr CGLayerGetContext (IntPtr layer);
public CGContext Context {
get {
return new CGContext (CGLayerGetContext (handle));
}
}
[DllImport (Constants.CoreGraphicsLibrary)]
extern static IntPtr CGLayerCreateWithContext (IntPtr context, SizeF size, IntPtr dictionary);
public static CGLayer Create (CGContext context, SizeF size) {
return new CGLayer (CGLayerCreateWithContext (context.Handle, size, IntPtr.Zero), true);
}
}
}
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