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//
// CGShading.cs: Implements the managed CGShading
//
// 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 CGShading : INativeObject, IDisposable {
internal IntPtr handle;
/* invoked by marshallers */
public CGShading (IntPtr handle)
{
this.handle = handle;
CGShadingRetain (handle);
}
[Preserve (Conditional=true)]
internal CGShading (IntPtr handle, bool owns)
{
this.handle = handle;
if (!owns)
CGShadingRetain (handle);
}
[DllImport(Constants.CoreGraphicsLibrary)]
extern static IntPtr CGShadingCreateAxial(IntPtr space, PointF start, PointF end, IntPtr functionHandle, bool extendStart, bool extendEnd);
public static CGShading CreateAxial (CGColorSpace colorspace, PointF start, PointF end, CGFunction function, bool extendStart, bool extendEnd)
{
if (colorspace == null)
throw new ArgumentNullException ("colorspace");
if (colorspace.Handle == IntPtr.Zero)
throw new ObjectDisposedException ("colorspace");
if (function == null)
throw new ArgumentNullException ("function");
if (function.Handle == IntPtr.Zero)
throw new ObjectDisposedException ("function");
return new CGShading (CGShadingCreateAxial (colorspace.Handle, start, end, function.Handle, extendStart, extendEnd), true);
}
[DllImport(Constants.CoreGraphicsLibrary)]
extern static IntPtr CGShadingCreateRadial(IntPtr space, PointF start, float startRadius, PointF end, float endRadius,
IntPtr function, bool extendStart, bool extendEnd);
public static CGShading CreateRadial (CGColorSpace colorspace, PointF start, float startRadius, PointF end, float endRadius,
CGFunction function, bool extendStart, bool extendEnd)
{
if (colorspace == null)
throw new ArgumentNullException ("colorspace");
if (colorspace.Handle == IntPtr.Zero)
throw new ObjectDisposedException ("colorspace");
if (function == null)
throw new ArgumentNullException ("function");
if (function.Handle == IntPtr.Zero)
throw new ObjectDisposedException ("function");
return new CGShading (CGShadingCreateRadial (colorspace.Handle, start, startRadius, end, endRadius,
function.Handle, extendStart, extendEnd), true);
}
~CGShading ()
{
Dispose (false);
}
public void Dispose ()
{
Dispose (true);
GC.SuppressFinalize (this);
}
public IntPtr Handle {
get { return handle; }
}
[DllImport (Constants.CoreGraphicsLibrary)]
extern static void CGShadingRelease (IntPtr handle);
[DllImport (Constants.CoreGraphicsLibrary)]
extern static void CGShadingRetain (IntPtr handle);
protected virtual void Dispose (bool disposing)
{
if (handle != IntPtr.Zero){
CGShadingRelease (handle);
handle = IntPtr.Zero;
}
}
}
}
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