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 //
  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.Drawing;
  37 using System.Drawing.Drawing2D;
  38
  39 namespace System.Drawing
  40 {
  41         public abstract class Brush : MarshalByRefObject, ICloneable, IDisposable
  42         {
  43                 internal IntPtr nativeObject;
  44                 internal bool disposed = false;
  45                 abstract public object Clone ();
  46
  47                 internal Brush ()
  48                 { }
  49
  50                 internal Brush (IntPtr ptr)
  51                 {
  52                         nativeObject = ptr;
  53                 }
  54
  55                 internal IntPtr NativeObject {
  56                         get {
  57                                 return nativeObject;
  58                         }
  59                         set {
  60                                 nativeObject = value;
  61                         }
  62                 }
  63
  64                 internal Brush CreateBrush (IntPtr brush, System.Drawing.BrushType type)
  65                 {
  66                         switch (type) {
  67
  68                         case BrushType.BrushTypeSolidColor:
  69                                 return new SolidBrush (brush);
  70
  71                         case BrushType.BrushTypeHatchFill:
  72                                 return new HatchBrush (brush);
  73
  74                         case BrushType.BrushTypeTextureFill:
  75                                 return new TextureBrush (brush);
  76
  77                         default:
  78                                 throw new NotImplementedException ();
  79                         }
  80                 }
  81
  82                 public void Dispose ()
  83                 {
  84                         Dispose (true);
  85                         System.GC.SuppressFinalize (this);
  86                 }
  87
  88                 protected virtual void Dispose (bool disposing)
  89                 {
  90                         if (disposed == false) {
  91                                 lock (this)
  92                                 {
  93                                         Status status = GDIPlus.GdipDeleteBrush (nativeObject);
  94                                         GDIPlus.CheckStatus (status);
  95                                         disposed = true;
  96                                 }
  97                         }
  98                 }
  99
 100                 ~Brush ()
 101                 {
 102                         Dispose (false);
 103                 }
 104         }
 105 }
 106