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 using System.Collections;
  39
  40 namespace System.Drawing
  41 {
  42         public abstract class Brush : MarshalByRefObject, ICloneable, IDisposable
  43         {
  44                 internal IntPtr nativeObject;
  45                 internal bool disposed = false;
  46                 abstract public object Clone ();
  47
  48                 internal Brush ()
  49                 { }
  50
  51                 internal Brush (IntPtr ptr)
  52                 {
  53                         nativeObject = ptr;
  54                 }
  55
  56                 internal IntPtr NativeObject {
  57                         get {
  58                                 return nativeObject;
  59                         }
  60                         set {
  61                                 nativeObject = value;
  62                         }
  63                 }
  64
  65                 internal Brush CreateBrush (IntPtr brush, System.Drawing.BrushType type)
  66                 {
  67                         switch (type) {
  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                         lock (this){
  91                                 if (disposed == false) {
  92                                         Status status = GDIPlus.GdipDeleteBrush (nativeObject);
  93                                         disposed = true;
  94                                         nativeObject = IntPtr.Zero;
  95                                 }
  96                         }
  97                 }
  98
  99                 ~Brush ()
 100                 {
 101                         Dispose (false);
 102                 }
 103         }
 104 }
 105