mcs/class/Mono.Cairo/Mono.Cairo/ImageSurface.cs

   1 //
   2 // Mono.Cairo.ImageSurface.cs
   3 //
   4 // Authors:
   5 //    Duncan Mak
   6 //    Miguel de Icaza.
   7 //
   8 // (C) Ximian Inc, 2003.
   9 // (C) Novell, Inc. 2003.
  10 //
  11 // This is an OO wrapper API for the Cairo API
  12 //
  13 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  14 //
  15 // Permission is hereby granted, free of charge, to any person obtaining
  16 // a copy of this software and associated documentation files (the
  17 // "Software"), to deal in the Software without restriction, including
  18 // without limitation the rights to use, copy, modify, merge, publish,
  19 // distribute, sublicense, and/or sell copies of the Software, and to
  20 // permit persons to whom the Software is furnished to do so, subject to
  21 // the following conditions:
  22 //
  23 // The above copyright notice and this permission notice shall be
  24 // included in all copies or substantial portions of the Software.
  25 //
  26 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  27 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  29 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  30 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  31 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  32 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33 //
  34
  35 using System;
  36 using System.Runtime.InteropServices;
  37
  38 namespace Cairo {
  39
  40         public class ImageSurface : Surface
  41         {
  42                 internal ImageSurface (IntPtr handle, bool owns) : base (handle, owns)
  43                 {
  44                 }
  45
  46                 public ImageSurface (Format format, int width, int height)
  47                 {
  48                         surface = NativeMethods.cairo_image_surface_create (format, width, height);
  49                         lock (surfaces.SyncRoot){
  50                                 surfaces [surface] = this;
  51                         }
  52                 }
  53
  54                 [Obsolete ("Use ImageSurface (byte[] data, Cairo.Format format, int width, int height, int stride)")]
  55                 public ImageSurface (ref byte[] data, Cairo.Format format, int width, int height, int stride) :this (data, format, width, height, stride)
  56                 {
  57                 }
  58
  59                 public ImageSurface (byte[] data, Cairo.Format format, int width, int height, int stride)
  60                 {
  61                         surface = NativeMethods.cairo_image_surface_create_for_data (data, format, width, height, stride);
  62                         lock (surfaces.SyncRoot){
  63                                 surfaces [surface] = this;
  64                         }
  65                 }
  66
  67                 public ImageSurface (IntPtr data, Cairo.Format format, int width, int height, int stride)
  68                 {
  69                         surface = NativeMethods.cairo_image_surface_create_for_data (data, format, width, height, stride);
  70                         lock (surfaces.SyncRoot){
  71                                 surfaces [surface] = this;
  72                         }
  73                 }
  74
  75                 public ImageSurface (string filename)
  76                 {
  77                         surface = NativeMethods.cairo_image_surface_create_from_png (filename);
  78                         lock (surfaces.SyncRoot){
  79                                 surfaces [surface] = this;
  80                         }
  81                 }
  82
  83                 public int Width {
  84                         get { return NativeMethods.cairo_image_surface_get_width (surface); }
  85                 }
  86
  87                 public int Height {
  88                         get { return NativeMethods.cairo_image_surface_get_height (surface); }
  89                 }
  90
  91                 public byte[] Data {
  92                         get {
  93                                 IntPtr ptr = NativeMethods.cairo_image_surface_get_data (surface);
  94                                 int length = Height * Stride;
  95                                 byte[] data = new byte[length];
  96                                 Marshal.Copy (ptr, data, 0, length);
  97                                 return data;
  98                         }
  99                 }
 100
 101                 public IntPtr DataPtr {
 102                         get {
 103                                 return NativeMethods.cairo_image_surface_get_data (surface);
 104                         }
 105                 }
 106
 107                 public Format Format {
 108                         get { return NativeMethods.cairo_image_surface_get_format (surface); }
 109                 }
 110
 111                 public int Stride {
 112                         get { return NativeMethods.cairo_image_surface_get_stride (surface); }
 113                 }
 114         }
 115 }