Mega Code Archive
Bitmap Image Utils
<![CDATA[
using System;
#if !SILVERLIGHT
using System.Drawing;
#endif
using System.IO;
using System.Windows.Media.Imaging;
using Color = System.Windows.Media.Color;
namespace FreeGoo.WpfRenderer
{
public static class BitmapImageUtils
{
#if SILVERLIGHT
public static BitmapImage LoadBitmapImage(string imageName)
{
BitmapImage bi = new BitmapImage();
bi.UriSource = new Uri(new Uri(Directory.GetCurrentDirectory()+"/"), imageName);
return bi;
}
public static BitmapImage LoadAndColorizeBitmapImage(string imageName, Color color)
{
return LoadBitmapImage(imageName);
}
#else
public static BitmapImage LoadBitmapImage(string imageName)
{
FileStream fs = File.Open(imageName, FileMode.Open);
Bitmap bitmap = new Bitmap(fs);
return Convert(bitmap);
}
public static BitmapImage LoadAndColorizeBitmapImage(string imageName, Color color)
{
FileStream fs = File.Open(imageName, FileMode.Open);
using (fs)
{
Bitmap bitmap = new Bitmap(fs);
ColorizeBitmap(bitmap, color);
return Convert(bitmap);
}
}
public static Color Colorize(Color originalColor, Color color)
{
int strength = (originalColor.R + originalColor.G + originalColor.B);
return
Color.FromArgb(
originalColor.A,
System.Convert.ToByte(color.R * strength / 255 / 3),
System.Convert.ToByte(color.G * strength / 255 / 3),
System.Convert.ToByte(color.B * strength / 255 / 3));
}
public static Color ToMediaColor(this System.Drawing.Color color)
{
return
Color.FromArgb(color.A, color.R, color.G, color.B);
}
public static System.Drawing.Color ToSystemColor(this Color color)
{
return
System.Drawing.Color.FromArgb(color.A, color.R, color.G, color.B);
}
public static BitmapImage Convert(Bitmap bitmap)
{
MemoryStream memoryStream = new MemoryStream();
bitmap.Save(memoryStream, System.Drawing.Imaging.ImageFormat.Png);
BitmapImage bitmapImage = new BitmapImage();
bitmapImage.BeginInit();
bitmapImage.StreamSource = new MemoryStream(memoryStream.ToArray());
bitmapImage.EndInit();
return bitmapImage;
}
public static Bitmap Convert(BitmapImage bitmap)
{
MemoryStream memoryStream = new MemoryStream();
BitmapEncoder bitmapEncoder = new BmpBitmapEncoder();
bitmapEncoder.Frames.Add(BitmapFrame.Create(memoryStream));
bitmapEncoder.Save(memoryStream);
return new Bitmap(memoryStream);
}
public static void ColorizeBitmap(Bitmap bitmap, Color tintColor)
{
for (int x = 0; x < bitmap.Width; x++)
{
for (int y = 0; y < bitmap.Height; y++)
{
Color clearPixel = bitmap.GetPixel(x, y).ToMediaColor();
Color tintedPixel = Colorize(clearPixel, tintColor);
bitmap.SetPixel(x, y, tintedPixel.ToSystemColor());
}
}
}
#endif
}
}
]]>