mcs/class/System.Drawing/System.Drawing/Brush.cs

   1 //
   2 // System.Drawing.Brush.cs
   3 //
   4 // Authors:
   5 //   Miguel de Icaza (miguel@ximian.com)
   6 //   Ravindra (rkumar@novell.com)
   7 //
   8 // (C) Ximian, Inc.  http://www.ximian.com
   9 // (C) Novell, Inc.  Http://www.novell.com
  10 //
  11
  12 using System;
  13 using System.Drawing;
  14 using System.Drawing.Drawing2D;
  15
  16 namespace System.Drawing
  17 {
  18         public abstract class Brush : MarshalByRefObject, ICloneable, IDisposable
  19         {
  20                 internal IntPtr nativeObject;
  21                 internal bool disposed = false;
  22                 abstract public object Clone ();
  23
  24                 internal Brush ()
  25                 { }
  26
  27                 internal Brush (IntPtr ptr)
  28                 {
  29                         nativeObject = ptr;
  30                 }
  31
  32                 internal IntPtr NativeObject {
  33                         get {
  34                                 return nativeObject;
  35                         }
  36                         set {
  37                                 nativeObject = value;
  38                         }
  39                 }
  40
  41                 internal Brush CreateBrush (IntPtr brush, System.Drawing.BrushType type)
  42                 {
  43                         switch (type) {
  44
  45                         case BrushType.BrushTypeSolidColor:
  46                                 return new SolidBrush (brush);
  47
  48                         case BrushType.BrushTypeHatchFill:
  49                                 return new HatchBrush (brush);
  50
  51                         case BrushType.BrushTypeTextureFill:
  52                                 return new TextureBrush (brush);
  53
  54                         default:
  55                                 throw new NotImplementedException ();
  56                         }
  57                 }
  58
  59                 public void Dispose ()
  60                 {
  61                         Dispose (true);
  62                         System.GC.SuppressFinalize (this);
  63                 }
  64
  65                 protected virtual void Dispose (bool disposing)
  66                 {
  67                         if (disposed == false) {
  68                                 lock (this)
  69                                 {
  70                                         Status status = GDIPlus.GdipDeleteBrush (nativeObject);
  71                                         GDIPlus.CheckStatus (status);
  72                                         disposed = true;
  73                                 }
  74                         }
  75                 }
  76
  77                 ~Brush ()
  78                 {
  79                         Dispose (false);
  80                 }
  81         }
  82 }
  83