developer/Samples/NET 4.6/Samples for Parallel/Sudoku/Sudoku_CSharp/Controls/ImagePanel.cs

   1 //--------------------------------------------------------------------------
   2 //
   3 //  Copyright (c) Microsoft Corporation.  All rights reserved.
   4 //
   5 //  File: ImagePanel.cs
   6 //
   7 //  Description: A panel used to render a double-buffered image.
   8 //
   9 //--------------------------------------------------------------------------
  10
  11 using System.ComponentModel;
  12 using System.Drawing;
  13 using System.Windows.Forms;
  14
  15 namespace Microsoft.ParallelComputingPlatform.ParallelExtensions.Samples.Sudoku.Controls
  16 {
  17         /// <summary>Double-buffered panel that displays a stretched image.</summary>
  18         internal class ImagePanel : NoFlickerPanel
  19         {
  20                 /// <summary>Initializes the panel.</summary>
  21                 public ImagePanel(){}
  22
  23                 /// <summary>The image to be rendered.</summary>
  24                 private Image _img;
  25
  26                 /// <summary>Gets or sets the image to be rendered.</summary>
  27                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
  28                 [Browsable(false)]
  29                 public Image Image { get { return _img; } set { _img = value; } }
  30
  31                 /// <summary>Paints the image.</summary>
  32                 /// <param name="e">Paint event args.</param>
  33                 protected override void OnPaint(PaintEventArgs e)
  34                 {
  35                         if (_img != null)
  36                         {
  37                                 e.Graphics.DrawImage(_img, 0, 0, Width, Height);
  38                         }
  39                         base.OnPaint(e);
  40                 }
  41         }
  42 }