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// Copyright (C) 2011 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.
//
using System;
using System.Runtime.InteropServices;
namespace Cairo
{
[StructLayout(LayoutKind.Sequential)]
public struct RectangleList {
public Status Status;
public IntPtr Rectangles;
public int NumRectangles;
}
public enum RegionOverlap {
In,
Out,
Part,
}
public class Region : IDisposable {
IntPtr handle;
public IntPtr Handle {
get { return handle; }
}
[Obsolete]
public Region (IntPtr handle) : this (handle, false) {}
public Region (IntPtr handle, bool owned)
{
this.handle = handle;
if (!owned)
NativeMethods.cairo_region_reference (handle);
if (CairoDebug.Enabled)
CairoDebug.OnAllocated (handle);
}
public Region () : this (NativeMethods.cairo_region_create () , true)
{
}
public Region (Crow.Rectangle rect)
{
handle = NativeMethods.cairo_region_create_rectangle (ref rect);
}
public Region (RectangleList rects)
{
handle = NativeMethods.cairo_region_create_rectangles (rects.Rectangles, rects.NumRectangles);
}
public Region Copy ()
{
return new Region (NativeMethods.cairo_region_copy (Handle), true);
}
#region IDisposable
~Region ()
{
Dispose (false);
}
public void Dispose ()
{
Dispose (true);
GC.SuppressFinalize (this);
}
protected virtual void Dispose (bool disposing)
{
if (!disposing || CairoDebug.Enabled)
CairoDebug.OnDisposed<Region> (handle, disposing);
if (!disposing|| handle == IntPtr.Zero)
return;
NativeMethods.cairo_region_destroy (Handle);
handle = IntPtr.Zero;
}
#endregion
public override bool Equals (object obj)
{
return (obj is Region) && NativeMethods.cairo_region_equal (Handle, (obj as Region).Handle);
}
public override int GetHashCode ()
{
return Handle.GetHashCode ();
}
public Status Status {
get { return NativeMethods.cairo_region_status (Handle); }
}
public Crow.Rectangle Extents {
get {
Crow.Rectangle result;
NativeMethods.cairo_region_get_extents (Handle, out result);
return result;
}
}
public int NumRectangles {
get { return NativeMethods.cairo_region_num_rectangles (Handle); }
}
public Crow.Rectangle GetRectangle (int nth)
{
Crow.Rectangle val;
NativeMethods.cairo_region_get_rectangle (Handle, nth, out val);
return val;
}
public bool IsEmpty {
get { return NativeMethods.cairo_region_is_empty (Handle); }
}
public RegionOverlap Contains (Crow.Rectangle rectangle)
{
return NativeMethods.cairo_region_contains_rectangle (Handle, ref rectangle);
}
public bool Contains (int x, int y)
{
return NativeMethods.cairo_region_contains_point (Handle, x, y);
}
public void Translate (int dx, int dy)
{
NativeMethods.cairo_region_translate (Handle, dx, dy);
}
public Status Subtract (Region other)
{
return NativeMethods.cairo_region_subtract (Handle, other.Handle);
}
public Status SubtractRectangle (Crow.Rectangle rectangle)
{
return NativeMethods.cairo_region_subtract_rectangle (Handle, ref rectangle);
}
public Status Intersect (Region other)
{
return NativeMethods.cairo_region_intersect (Handle, other.Handle);
}
public Status IntersectRectangle (Crow.Rectangle rectangle)
{
return NativeMethods.cairo_region_intersect_rectangle (Handle, ref rectangle);
}
public Status Union (Region other)
{
return NativeMethods.cairo_region_union (Handle, other.Handle);
}
public Status UnionRectangle (Crow.Rectangle rectangle)
{
return NativeMethods.cairo_region_union_rectangle (Handle, ref rectangle);
}
public Status Xor (Region other)
{
return NativeMethods.cairo_region_xor (Handle, other.Handle);
}
public Status XorRectangle (Crow.Rectangle rectangle)
{
return NativeMethods.cairo_region_xor_rectangle (Handle, ref rectangle);
}
}
}
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