Mega Code Archive

 

Categories / C# / 2D Graphics

 

Thumbnail Image

using System; using System.Drawing; using System.Windows.Forms;     class Thumbnail: Form {      const int iSquare = 64;      Image imageThumbnail;          public static void Main()      {           Application.Run(new Thumbnail());      }      public Thumbnail()      {           Text = "Thumbnail";           ResizeRedraw = true;            Image image = Image.FromFile("Color.jpg");               int cxThumbnail, cyThumbnail;               if (image.Width > image.Height)           {                cxThumbnail = iSquare;                cyThumbnail = iSquare * image.Height / image.Width;           }           else           {                cyThumbnail = iSquare;                cxThumbnail = iSquare * image.Width / image.Height;           }           imageThumbnail = image.GetThumbnailImage(cxThumbnail, cyThumbnail,                                                    null, (IntPtr) 0);      }      protected override void OnPaint(PaintEventArgs pea)      {           DoPage(pea.Graphics, ForeColor,ClientSize.Width, ClientSize.Height);      }            protected void DoPage(Graphics grfx, Color clr, int cx, int cy)      {           for (int y = 0; y < cy; y += iSquare){               for (int x = 0; x < cx; x += iSquare)                    grfx.DrawImage(imageThumbnail,                                    x + (iSquare - imageThumbnail.Width) / 2,                                   y + (iSquare - imageThumbnail.Height) / 2,                                   imageThumbnail.Width, imageThumbnail.Height);           }      } }