public override Image Apply(Image img)
{
using (img)
{
return(ColorMatrixManager.Alpha(Value, Addition).Apply(img));
}
}
public override Bitmap Apply(Bitmap bmp)
{
using (bmp)
{
return(ColorMatrixManager.Alpha(Value, Addition).Apply(bmp));
}
}
public override Bitmap Apply(Bitmap bmp)
{
if (Opacity < 1 || (SizeMode != DrawImageSizeMode.DontResize && Size.Width <= 0 && Size.Height <= 0))
{
return(bmp);
}
string imageFilePath = Helpers.ExpandFolderVariables(ImageLocation, true);
if (!string.IsNullOrEmpty(imageFilePath) && File.Exists(imageFilePath))
{
using (Bitmap bmpWatermark = ImageHelpers.LoadImage(imageFilePath))
{
if (bmpWatermark != null)
{
if (RotateFlip != ImageRotateFlipType.None)
{
bmpWatermark.RotateFlip((RotateFlipType)RotateFlip);
}
Size imageSize;
if (SizeMode == DrawImageSizeMode.AbsoluteSize)
{
int width = Size.Width == -1 ? bmp.Width : Size.Width;
int height = Size.Height == -1 ? bmp.Height : Size.Height;
imageSize = ImageHelpers.ApplyAspectRatio(width, height, bmpWatermark);
}
else if (SizeMode == DrawImageSizeMode.PercentageOfWatermark)
{
int width = (int)Math.Round(Size.Width / 100f * bmpWatermark.Width);
int height = (int)Math.Round(Size.Height / 100f * bmpWatermark.Height);
imageSize = ImageHelpers.ApplyAspectRatio(width, height, bmpWatermark);
}
else if (SizeMode == DrawImageSizeMode.PercentageOfCanvas)
{
int width = (int)Math.Round(Size.Width / 100f * bmp.Width);
int height = (int)Math.Round(Size.Height / 100f * bmp.Height);
imageSize = ImageHelpers.ApplyAspectRatio(width, height, bmpWatermark);
}
else
{
imageSize = bmpWatermark.Size;
}
Point imagePosition = Helpers.GetPosition(Placement, Offset, bmp.Size, imageSize);
Rectangle imageRectangle = new Rectangle(imagePosition, imageSize);
if (AutoHide && !new Rectangle(0, 0, bmp.Width, bmp.Height).Contains(imageRectangle))
{
return(bmp);
}
using (Graphics g = Graphics.FromImage(bmp))
{
g.InterpolationMode = ImageHelpers.GetInterpolationMode(InterpolationMode);
g.PixelOffsetMode = PixelOffsetMode.Half;
g.CompositingMode = CompositingMode;
if (Tile)
{
using (TextureBrush brush = new TextureBrush(bmpWatermark, WrapMode.Tile))
{
brush.TranslateTransform(imageRectangle.X, imageRectangle.Y);
g.FillRectangle(brush, imageRectangle);
}
}
else if (Opacity < 100)
{
using (ImageAttributes ia = new ImageAttributes())
{
ColorMatrix matrix = ColorMatrixManager.Alpha(Opacity / 100f);
ia.SetColorMatrix(matrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);
g.DrawImage(bmpWatermark, imageRectangle, 0, 0, bmpWatermark.Width, bmpWatermark.Height, GraphicsUnit.Pixel, ia);
}
}
else
{
g.DrawImage(bmpWatermark, imageRectangle);
}
}
}
}
}
return(bmp);
}
