public static Bitmap OverlayBitmap(Bitmap destBmp, Bitmap bmpToOverlay, ImageCornerEnum corner)
{
return(OverlayBitmap(destBmp, bmpToOverlay, 0, corner));
}
public static Bitmap OverlayBitmap(Bitmap destBmp, Bitmap bmpToOverlay, ImageCornerEnum corner)
{
return OverlayBitmap(destBmp, bmpToOverlay, 0, corner);
}
/// <summary>
/// Renders a bitmap over another bitmap, with a specific alpha value.
/// This can be used to overlay a logo or watermark over a bitmap
/// </summary>
/// <param name="destBmp">Bitmap over which image is to be overlaid</param>
/// <param name="bmpToOverlay">Bitmap to overlay</param>
/// <param name="overlayAlpha">Alpha value fo overlay bitmap. 0 = fully transparent, 100 = fully opaque</param>
/// <param name="corner">Corner of destination bitmap to place overlay bitmap</param>
/// <returns></returns>
public static Bitmap OverlayBitmap(Bitmap destBmp, Bitmap bmpToOverlay, int overlayAlpha, ImageCornerEnum corner)
{
//Translate corner to rectangle and pass through to other impl
Point overlayPoint;
if (corner.Equals(ImageCornerEnum.TopLeft))
{
overlayPoint = new Point(0, 0);
}
else if (corner.Equals(ImageCornerEnum.TopRight))
{
overlayPoint = new Point(destBmp.Size.Width - bmpToOverlay.Size.Width, 0);
}
else if (corner.Equals(ImageCornerEnum.BottomRight))
{
overlayPoint = new Point(destBmp.Size.Width - bmpToOverlay.Size.Width,
destBmp.Size.Height - bmpToOverlay.Size.Height);
}
else if (corner.Equals(ImageCornerEnum.Center))
{
overlayPoint = new Point(destBmp.Size.Width / 2 - bmpToOverlay.Size.Width / 2,
destBmp.Size.Height / 2 - bmpToOverlay.Size.Height / 2);
}
else
{
overlayPoint = new Point(0,
destBmp.Size.Height - bmpToOverlay.Size.Height);
}
return(OverlayBitmap(destBmp, bmpToOverlay, overlayAlpha, overlayPoint));
}
/// <summary>
/// Renders a bitmap over another bitmap, with a specific alpha value.
/// This can be used to overlay a logo or watermark over a bitmap
/// </summary>
/// <param name="destBmp">Bitmap over which image is to be overlaid</param>
/// <param name="bmpToOverlay">Bitmap to overlay</param>
/// <param name="overlayAlpha">Alpha value fo overlay bitmap. 0 = fully transparent, 100 = fully opaque</param>
/// <param name="corner">Corner of destination bitmap to place overlay bitmap</param>
/// <returns></returns>
public static Bitmap OverlayBitmap(Bitmap destBmp, Bitmap bmpToOverlay, int overlayAlpha, ImageCornerEnum corner)
{
//Translate corner to rectangle and pass through to other impl
Point overlayPoint;
if (corner.Equals(ImageCornerEnum.TopLeft))
{
overlayPoint = new Point(0, 0);
}
else if (corner.Equals(ImageCornerEnum.TopRight))
{
overlayPoint = new Point(destBmp.Size.Width - bmpToOverlay.Size.Width, 0);
}
else if (corner.Equals(ImageCornerEnum.BottomRight))
{
overlayPoint = new Point(destBmp.Size.Width - bmpToOverlay.Size.Width,
destBmp.Size.Height - bmpToOverlay.Size.Height);
}
else if (corner.Equals(ImageCornerEnum.Center))
{
overlayPoint = new Point(destBmp.Size.Width / 2 - bmpToOverlay.Size.Width / 2,
destBmp.Size.Height / 2 - bmpToOverlay.Size.Height / 2);
}
else
{
overlayPoint = new Point(0,
destBmp.Size.Height - bmpToOverlay.Size.Height);
}
return OverlayBitmap(destBmp, bmpToOverlay, overlayAlpha, overlayPoint);
}
