GtkSharp/Source/Libs/CairoSharp/Surface.cs

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//
// Mono.Cairo.Surface.cs
//
// Authors:
// Duncan Mak
// Miguel de Icaza.
// Alp Toker
//
// (C) Ximian Inc, 2003.
// (C) Novell, Inc. 2003.
//
// This is an OO wrapper API for the Cairo API
//
// Copyright (C) 2004 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.Collections;
namespace Cairo {
public class Surface : IDisposable
{
[Obsolete]
protected static Hashtable surfaces = new Hashtable ();
IntPtr handle = IntPtr.Zero;
[Obsolete]
protected Surface()
{
}
[Obsolete]
protected Surface (IntPtr handle) : this (handle, true)
{
}
protected Surface (IntPtr handle, bool owner)
{
if (handle == IntPtr.Zero)
throw new ArgumentException ("handle should not be NULL", "handle");
this.handle = handle;
if (!owner)
NativeMethods.cairo_surface_reference (handle);
if (CairoDebug.Enabled)
CairoDebug.OnAllocated (handle);
}
public static Surface Lookup (IntPtr surface, bool owned)
{
SurfaceType st = NativeMethods.cairo_surface_get_type (surface);
switch (st) {
case SurfaceType.Image:
return new ImageSurface (surface, owned);
case SurfaceType.Xlib:
return new XlibSurface (surface, owned);
case SurfaceType.Xcb:
return new XcbSurface (surface, owned);
case SurfaceType.Glitz:
return new GlitzSurface (surface, owned);
case SurfaceType.Win32:
return new Win32Surface (surface, owned);
case SurfaceType.Pdf:
return new PdfSurface (surface, owned);
case SurfaceType.PS:
return new PSSurface (surface, owned);
case SurfaceType.DirectFB:
return new DirectFBSurface (surface, owned);
case SurfaceType.Svg:
return new SvgSurface (surface, owned);
default:
return new Surface (surface, owned);
}
}
[Obsolete ("Use an ImageSurface constructor instead.")]
public static Cairo.Surface CreateForImage (
ref byte[] data, Cairo.Format format, int width, int height, int stride)
{
IntPtr p = NativeMethods.cairo_image_surface_create_for_data (
data, format, width, height, stride);
return new Cairo.Surface (p, true);
}
[Obsolete ("Use an ImageSurface constructor instead.")]
public static Cairo.Surface CreateForImage (
Cairo.Format format, int width, int height)
{
IntPtr p = NativeMethods.cairo_image_surface_create (
format, width, height);
return new Cairo.Surface (p, true);
}
public Cairo.Surface CreateSimilar (
Cairo.Content content, int width, int height)
{
IntPtr p = NativeMethods.cairo_surface_create_similar (
this.Handle, content, width, height);
return new Cairo.Surface (p, true);
}
~Surface ()
{
Dispose (false);
}
//[Obsolete ("Use Context.SetSource() followed by Context.Paint()")]
public void Show (Context gr, double x, double y)
{
NativeMethods.cairo_set_source_surface (gr.Handle, handle, x, y);
NativeMethods.cairo_paint (gr.Handle);
}
public void Dispose ()
{
Dispose (true);
GC.SuppressFinalize (this);
}
protected virtual void Dispose (bool disposing)
{
if (!disposing || CairoDebug.Enabled)
CairoDebug.OnDisposed<Surface> (handle, disposing);
if (handle == IntPtr.Zero)
return;
NativeMethods.cairo_surface_destroy (handle);
handle = IntPtr.Zero;
}
protected void CheckDisposed ()
{
if (handle == IntPtr.Zero)
throw new ObjectDisposedException ("Object has already been disposed");
}
public Status Finish ()
{
CheckDisposed ();
NativeMethods.cairo_surface_finish (handle);
return Status;
}
public void Flush ()
{
CheckDisposed ();
NativeMethods.cairo_surface_flush (handle);
}
public void MarkDirty ()
{
CheckDisposed ();
NativeMethods.cairo_surface_mark_dirty (Handle);
}
public void MarkDirty (Rectangle rectangle)
{
CheckDisposed ();
NativeMethods.cairo_surface_mark_dirty_rectangle (Handle, (int)rectangle.X, (int)rectangle.Y, (int)rectangle.Width, (int)rectangle.Height);
}
public IntPtr Handle {
get {
return handle;
}
}
public PointD DeviceOffset {
get {
CheckDisposed ();
double x, y;
NativeMethods.cairo_surface_get_device_offset (handle, out x, out y);
return new PointD (x, y);
}
set {
CheckDisposed ();
NativeMethods.cairo_surface_set_device_offset (handle, value.X, value.Y);
}
}
[Obsolete ("Use Dispose()")]
public void Destroy()
{
Dispose ();
}
public void SetFallbackResolution (double x, double y)
{
CheckDisposed ();
NativeMethods.cairo_surface_set_fallback_resolution (handle, x, y);
}
public void WriteToPng (string filename)
{
CheckDisposed ();
NativeMethods.cairo_surface_write_to_png (handle, filename);
}
[Obsolete ("Use Handle instead.")]
public IntPtr Pointer {
get {
return handle;
}
}
public Status Status {
get {
CheckDisposed ();
return NativeMethods.cairo_surface_status (handle);
}
}
public Content Content {
get {
CheckDisposed ();
return NativeMethods.cairo_surface_get_content (handle);
}
}
public SurfaceType SurfaceType {
get {
CheckDisposed ();
return NativeMethods.cairo_surface_get_type (handle);
}
}
public uint ReferenceCount {
get {
return NativeMethods.cairo_surface_get_reference_count (handle); }
}
}
}