Pike Street Market

The Edminsters visit the Pike Street Market in Seattle.

MVP Design Patterns with ASP.NET

Polymorphic Podcast has an excellent collection of audio, video and blog posts dedicated to MVP pattern implementation in asp.net applications. Have a look...

Proportionate Image Scaling with .Net GDI+

Here's the code...

private static Image scaleImage(Image img, int maxHeight, int maxWidth)
{
     int currentHeight = img.Height;
     int currentWidth = img.Width;
     int newHeight = 0;
     int newWidth = 0;

     //prevent enlarging past original height and width
     if (img.Height <= maxHeight && img.Width <= maxWidth)  return img;
     if (currentHeight == 0 || currentWidth == 0)   return img;
     double heightRatio = (double)currentHeight / currentWidth;
     double widthRatio = (double)currentWidth / currentHeight;  newHeight = maxHeight;
     if (widthRatio > 0)
          newWidth = Convert.ToInt32(newHeight * widthRatio);

     if (newWidth > maxWidth)
     {
          newWidth = maxWidth;
          newHeight = Convert.ToInt32(newWidth * heightRatio);
     }

     using (Bitmap scaledImage = new Bitmap(newWidth, newHeight))
     using (Graphics g = Graphics.FromImage(scaledImage))
     {
          g.InterpolationMode = InterpolationMode.HighQualityBicubic;
          foreach (PropertyItem prop in img.PropertyItems)
          scaledImage.SetPropertyItem(prop);
          g.DrawImage(img, 0, 0, newWidth, newHeight);

          return scaledImage;
     }
}