class/System.Drawing/System.Drawing/BufferedGraphicsContext.cs

   1 //
   2 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining
   5 // a copy of this software and associated documentation files (the
   6 // "Software"), to deal in the Software without restriction, including
   7 // without limitation the rights to use, copy, modify, merge, publish,
   8 // distribute, sublicense, and/or sell copies of the Software, and to
   9 // permit persons to whom the Software is furnished to do so, subject to
  10 // the following conditions:
  11 //
  12 // The above copyright notice and this permission notice shall be
  13 // included in all copies or substantial portions of the Software.
  14 //
  15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22 //
  23 // Authors:
  24 //
  25 //   Jordi Mas i Hernandez <jordimash@gmail.com>
  26 //
  27 //
  28
  29 #if NET_2_0
  30
  31 using System.ComponentModel;
  32 using System.Runtime.InteropServices;
  33 using System.Runtime.Serialization;
  34 using System.Security.Permissions;
  35
  36 namespace System.Drawing
  37 {
  38         public sealed class BufferedGraphicsContext : IDisposable
  39         {
  40                 private Size max_buffer;
  41
  42                 public BufferedGraphicsContext ()
  43                 {
  44                         max_buffer = Size.Empty;
  45                 }
  46
  47                 ~BufferedGraphicsContext ()
  48                 {
  49                 }
  50
  51                 public BufferedGraphics Allocate (Graphics targetGraphics, Rectangle targetRectangle)
  52                 {
  53                         BufferedGraphics graphics = new BufferedGraphics (targetGraphics, targetRectangle);
  54                         return graphics;
  55                 }
  56
  57                 [MonoTODO ("The targetDC parameter has no equivalent in libgdiplus.")]
  58                 [SecurityPermission (SecurityAction.Demand, UnmanagedCode = true)]
  59                 public BufferedGraphics Allocate (IntPtr targetDC, Rectangle targetRectangle)
  60                 {
  61                         throw new NotImplementedException ();
  62                 }
  63
  64                 public void Dispose ()
  65                 {
  66                         System.GC.SuppressFinalize (this);
  67                 }
  68
  69                 public void Invalidate ()
  70                 {
  71                 }
  72
  73                 public Size MaximumBuffer {
  74                         get {return max_buffer; }
  75                         set {
  76                                 if (value.Width <= 0 || value.Height <= 0) {
  77                                         throw new ArgumentException ("The height or width of the size is less than or equal to zero.");
  78                                 }
  79
  80                                 max_buffer = value;
  81                         }
  82                 }
  83
  84         }
  85 }
  86
  87 #endif