mcs/class/Mono.Cairo/Mono.Cairo/Surface.cs

   1 //
   2 // Mono.Cairo.Surface.cs
   3 //
   4 // Authors:
   5 //    Duncan Mak
   6 //    Miguel de Icaza.
   7 //    Alp Toker
   8 //
   9 // (C) Ximian Inc, 2003.
  10 // (C) Novell, Inc. 2003.
  11 //
  12 // This is an OO wrapper API for the Cairo API
  13 //
  14 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  15 //
  16 // Permission is hereby granted, free of charge, to any person obtaining
  17 // a copy of this software and associated documentation files (the
  18 // "Software"), to deal in the Software without restriction, including
  19 // without limitation the rights to use, copy, modify, merge, publish,
  20 // distribute, sublicense, and/or sell copies of the Software, and to
  21 // permit persons to whom the Software is furnished to do so, subject to
  22 // the following conditions:
  23 //
  24 // The above copyright notice and this permission notice shall be
  25 // included in all copies or substantial portions of the Software.
  26 //
  27 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  28 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  29 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  30 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  31 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  32 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  33 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  34 //
  35
  36 using System;
  37 using System.Collections;
  38
  39 namespace Cairo {
  40
  41         public class Surface : IDisposable
  42         {
  43                 [Obsolete]
  44                 protected static Hashtable surfaces = new Hashtable ();
  45
  46                 IntPtr handle = IntPtr.Zero;
  47
  48                 [Obsolete]
  49                 protected Surface()
  50                 {
  51                 }
  52
  53                 [Obsolete]
  54                 protected Surface (IntPtr ptr) : this (ptr, true)
  55                 {
  56                 }
  57
  58                 protected Surface (IntPtr handle, bool owner)
  59                 {
  60                         this.handle = handle;
  61                         if (!owner)
  62                                 NativeMethods.cairo_surface_reference (handle);
  63                         if (CairoDebug.Enabled)
  64                                 CairoDebug.OnAllocated (handle);
  65                 }
  66
  67                 public static Surface Lookup (IntPtr surface, bool owned)
  68                 {
  69                         SurfaceType st = NativeMethods.cairo_surface_get_type (surface);
  70                         switch (st) {
  71                         case SurfaceType.Image:
  72                                 return new ImageSurface (surface, owned);
  73                         case SurfaceType.Xlib:
  74                                 return new XlibSurface (surface, owned);
  75                         case SurfaceType.Xcb:
  76                                 return new XcbSurface (surface, owned);
  77                         case SurfaceType.Glitz:
  78                                 return new GlitzSurface (surface, owned);
  79                         case SurfaceType.Win32:
  80                                 return new Win32Surface (surface, owned);
  81                         case SurfaceType.Pdf:
  82                                 return new PdfSurface (surface, owned);
  83                         case SurfaceType.PS:
  84                                 return new PSSurface (surface, owned);
  85                         case SurfaceType.DirectFB:
  86                                 return new DirectFBSurface (surface, owned);
  87                         case SurfaceType.Svg:
  88                                 return new SvgSurface (surface, owned);
  89                         default:
  90                                 return new Surface (surface, owned);
  91                         }
  92                 }
  93
  94                 [Obsolete ("Use an ImageSurface constructor instead.")]
  95                 public static Cairo.Surface CreateForImage (
  96                         ref byte[] data, Cairo.Format format, int width, int height, int stride)
  97                 {
  98                         IntPtr p = NativeMethods.cairo_image_surface_create_for_data (
  99                                 data, format, width, height, stride);
 100
 101                         return new Cairo.Surface (p, true);
 102                 }
 103
 104                 [Obsolete ("Use an ImageSurface constructor instead.")]
 105                 public static Cairo.Surface CreateForImage (
 106                         Cairo.Format format, int width, int height)
 107                 {
 108                         IntPtr p = NativeMethods.cairo_image_surface_create (
 109                                 format, width, height);
 110
 111                         return new Cairo.Surface (p, true);
 112                 }
 113
 114
 115                 public Cairo.Surface CreateSimilar (
 116                         Cairo.Content content, int width, int height)
 117                 {
 118                         IntPtr p = NativeMethods.cairo_surface_create_similar (
 119                                 this.Handle, content, width, height);
 120
 121                         return new Cairo.Surface (p, true);
 122                 }
 123
 124                 ~Surface ()
 125                 {
 126                         Dispose (false);
 127                 }
 128
 129                 //[Obsolete ("Use Context.SetSource() followed by Context.Paint()")]
 130                 public void Show (Context gr, double x, double y)
 131                 {
 132                         NativeMethods.cairo_set_source_surface (gr.Handle, handle, x, y);
 133                         NativeMethods.cairo_paint (gr.Handle);
 134                 }
 135
 136                 public void Dispose ()
 137                 {
 138                         Dispose (true);
 139                         GC.SuppressFinalize (this);
 140                 }
 141
 142                 protected virtual void Dispose (bool disposing)
 143                 {
 144                         if (!disposing || CairoDebug.Enabled)
 145                                 CairoDebug.OnDisposed<Surface> (handle, disposing);
 146
 147                         if (!disposing|| handle == IntPtr.Zero)
 148                                 return;
 149
 150                         NativeMethods.cairo_surface_destroy (handle);
 151                         handle = IntPtr.Zero;
 152                 }
 153
 154                 public Status Finish ()
 155                 {
 156                         NativeMethods.cairo_surface_finish (handle);
 157                         return Status;
 158                 }
 159
 160                 public void Flush ()
 161                 {
 162                         NativeMethods.cairo_surface_flush (handle);
 163                 }
 164
 165                 public void MarkDirty ()
 166                 {
 167                         NativeMethods.cairo_surface_mark_dirty (Handle);
 168                 }
 169
 170                 public void MarkDirty (Rectangle rectangle)
 171                 {
 172                         NativeMethods.cairo_surface_mark_dirty_rectangle (Handle, (int)rectangle.X, (int)rectangle.Y, (int)rectangle.Width, (int)rectangle.Height);
 173                 }
 174
 175                 public IntPtr Handle {
 176                         get {
 177                                 return handle;
 178                         }
 179                 }
 180
 181                 public PointD DeviceOffset {
 182                         get {
 183                                 double x, y;
 184                                 NativeMethods.cairo_surface_get_device_offset (handle, out x, out y);
 185                                 return new PointD (x, y);
 186                         }
 187
 188                         set {
 189                                 NativeMethods.cairo_surface_set_device_offset (handle, value.X, value.Y);
 190                         }
 191                 }
 192
 193                 [Obsolete ("Use Dispose()")]
 194                 public void Destroy()
 195                 {
 196                         Dispose ();
 197                 }
 198
 199                 public void SetFallbackResolution (double x, double y)
 200                 {
 201                         NativeMethods.cairo_surface_set_fallback_resolution (handle, x, y);
 202                 }
 203
 204                 public void WriteToPng (string filename)
 205                 {
 206                         NativeMethods.cairo_surface_write_to_png (handle, filename);
 207                 }
 208
 209                 [Obsolete ("Use Handle instead.")]
 210                 public IntPtr Pointer {
 211                         get {
 212                                 return handle;
 213                         }
 214                 }
 215
 216                 public Status Status {
 217                         get { return NativeMethods.cairo_surface_status (handle); }
 218                 }
 219
 220                 public Content Content {
 221                         get { return NativeMethods.cairo_surface_get_content (handle); }
 222                 }
 223
 224                 public SurfaceType SurfaceType {
 225                         get { return NativeMethods.cairo_surface_get_type (handle); }
 226                 }
 227
 228                 public uint ReferenceCount {
 229                         get { return NativeMethods.cairo_surface_get_reference_count (handle); }
 230                 }
 231         }
 232 }