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![Mike Kestner](/assets/img/avatar_default.png)
* cairo/*: merge changes to Mono.Cairo since we split back in Oct 2008. Not much changed. Scrubbed the doc index and updated NativeMethods to match. Commented with DONTCARE the ones we will ignore. Implemented a few of them, including an initial Device binding. Still some work to do, and some discovery to be done to see what happened to Xcb, Glitz, and DirectFB surfaces and whether we need to remove those classes.
245 lines
6.6 KiB
C#
245 lines
6.6 KiB
C#
//
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// Mono.Cairo.Surface.cs
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//
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// Authors:
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// Duncan Mak
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// Miguel de Icaza.
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// Alp Toker
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//
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// (C) Ximian Inc, 2003.
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// (C) Novell, Inc. 2003.
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//
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// This is an OO wrapper API for the Cairo API
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//
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// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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namespace Cairo {
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public class Surface : IDisposable
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{
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protected static Hashtable surfaces = new Hashtable ();
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internal IntPtr surface = IntPtr.Zero;
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protected Surface()
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{
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}
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protected Surface (IntPtr ptr, bool owns)
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{
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surface = ptr;
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lock (surfaces.SyncRoot){
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surfaces [ptr] = this;
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}
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if (!owns)
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NativeMethods.cairo_surface_reference (ptr);
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}
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static internal Surface LookupExternalSurface (IntPtr p)
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{
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lock (surfaces.SyncRoot){
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object o = surfaces [p];
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if (o == null){
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return new Surface (p, false);
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}
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return (Surface) o;
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}
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}
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public static Surface LookupSurface (IntPtr surface)
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{
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SurfaceType st = NativeMethods.cairo_surface_get_type (surface);
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switch (st) {
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case SurfaceType.Image:
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return new ImageSurface (surface, true);
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case SurfaceType.Xlib:
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return new XlibSurface (surface, true);
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case SurfaceType.Xcb:
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return new XcbSurface (surface, true);
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case SurfaceType.Glitz:
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return new GlitzSurface (surface, true);
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case SurfaceType.Win32:
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return new Win32Surface (surface, true);
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case SurfaceType.Pdf:
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return new PdfSurface (surface, true);
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case SurfaceType.PS:
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return new PSSurface (surface, true);
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case SurfaceType.DirectFB:
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return new DirectFBSurface (surface, true);
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case SurfaceType.Svg:
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return new SvgSurface (surface, true);
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default:
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return Surface.LookupExternalSurface (surface);
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}
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}
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[Obsolete ("Use an ImageSurface constructor instead.")]
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public static Cairo.Surface CreateForImage (
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ref byte[] data, Cairo.Format format, int width, int height, int stride)
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{
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IntPtr p = NativeMethods.cairo_image_surface_create_for_data (
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data, format, width, height, stride);
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return new Cairo.Surface (p, true);
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}
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[Obsolete ("Use an ImageSurface constructor instead.")]
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public static Cairo.Surface CreateForImage (
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Cairo.Format format, int width, int height)
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{
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IntPtr p = NativeMethods.cairo_image_surface_create (
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format, width, height);
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return new Cairo.Surface (p, true);
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}
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public Cairo.Surface CreateSimilar (
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Cairo.Content content, int width, int height)
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{
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IntPtr p = NativeMethods.cairo_surface_create_similar (
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this.Handle, content, width, height);
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return new Cairo.Surface (p, true);
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}
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~Surface ()
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{
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Dispose (false);
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}
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//[Obsolete ("Use Context.SetSource() followed by Context.Paint()")]
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public void Show (Context gr, double x, double y)
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{
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NativeMethods.cairo_set_source_surface (gr.Handle, surface, x, y);
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NativeMethods.cairo_paint (gr.Handle);
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}
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public void Dispose ()
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{
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Dispose (true);
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GC.SuppressFinalize (this);
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}
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protected virtual void Dispose (bool disposing)
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{
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if (surface == IntPtr.Zero)
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return;
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lock (surfaces.SyncRoot)
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surfaces.Remove (surface);
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NativeMethods.cairo_surface_destroy (surface);
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surface = IntPtr.Zero;
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}
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public Status Finish ()
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{
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NativeMethods.cairo_surface_finish (surface);
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return Status;
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}
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public void Flush ()
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{
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NativeMethods.cairo_surface_flush (surface);
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}
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public void MarkDirty ()
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{
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NativeMethods.cairo_surface_mark_dirty (Handle);
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}
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public void MarkDirty (Rectangle rectangle)
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{
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NativeMethods.cairo_surface_mark_dirty_rectangle (Handle, (int)rectangle.X, (int)rectangle.Y, (int)rectangle.Width, (int)rectangle.Height);
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}
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public IntPtr Handle {
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get {
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return surface;
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}
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}
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public Device Device {
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get {
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IntPtr dev = NativeMethods.cairo_surface_get_device (surface);
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return dev == IntPtr.Zero ? null : new Device (dev);
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}
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}
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public PointD DeviceOffset {
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get {
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double x, y;
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NativeMethods.cairo_surface_get_device_offset (surface, out x, out y);
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return new PointD (x, y);
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}
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set {
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NativeMethods.cairo_surface_set_device_offset (surface, value.X, value.Y);
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}
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}
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public void Destroy()
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{
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Dispose (true);
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}
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public void SetFallbackResolution (double x, double y)
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{
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NativeMethods.cairo_surface_set_fallback_resolution (surface, x, y);
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}
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public void WriteToPng (string filename)
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{
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NativeMethods.cairo_surface_write_to_png (surface, filename);
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}
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[Obsolete ("Use Handle instead.")]
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public IntPtr Pointer {
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get {
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return surface;
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}
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}
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public Status Status {
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get { return NativeMethods.cairo_surface_status (surface); }
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}
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public Content Content {
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get { return NativeMethods.cairo_surface_get_content (surface); }
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}
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public SurfaceType SurfaceType {
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get { return NativeMethods.cairo_surface_get_type (surface); }
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}
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public uint ReferenceCount {
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get { return NativeMethods.cairo_surface_get_reference_count (surface); }
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}
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}
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}
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