private Image DrawWatermarkImage(Image img, string imgPath)
{
Image img2 = null;
try
{
if (img != null && !string.IsNullOrEmpty(imgPath) && File.Exists(imgPath) && Config.WatermarkImageScale > 0)
{
img2 = Helpers.GetImageFromFile(imgPath);
int offset = Config.WatermarkOffset;
int width = (int)(Config.WatermarkImageScale / 100f * img2.Width);
int height = (int)(Config.WatermarkImageScale / 100f * img2.Height);
if (Config.WatermarkAutoHide && ((img.Width < width + offset) || (img.Height < height + offset)))
{
return(img);
}
if (Config.WatermarkImageScale != 100)
{
img2 = ImageHelpers.ResizeImage(img2, width, height);
}
Point imgPos = FindPosition(Config.WatermarkPositionMode, offset, img.Size, img2.Size, 0);
using (Graphics g = Graphics.FromImage(img))
{
g.SetHighQuality();
g.DrawImage(img2, imgPos.X, imgPos.Y, img2.Width, img2.Height);
if (Config.WatermarkAddReflection)
{
using (Bitmap bmp = ImageHelpers.AddReflection(img2, 50, 150, 10))
{
g.DrawImage(bmp, new Rectangle(imgPos.X, imgPos.Y + img2.Height - 1, bmp.Width, bmp.Height));
}
}
if (Config.WatermarkUseBorder)
{
g.DrawRectangle(Pens.Black, new Rectangle(imgPos.X, imgPos.Y, img2.Width - 1, img2.Height - 1));
}
}
}
}
catch (Exception ex)
{
DebugHelper.WriteException(ex, "Error while drawing image watermark");
}
finally
{
if (img2 != null)
{
img2.Dispose();
}
}
return(img);
}
public static Image DrawReflection(Image img, int percentage, int maxAlpha, int minAlpha, int offset, bool skew, int skewSize)
{
Bitmap reflection = ImageHelpers.AddReflection(img, percentage, maxAlpha, minAlpha);
if (skew)
{
reflection = ImageHelpers.AddSkew(reflection, skewSize, 0);
}
Bitmap result = new Bitmap(reflection.Width, img.Height + reflection.Height + offset);
using (Graphics g = Graphics.FromImage(result))
using (img)
using (reflection)
{
g.SetHighQuality();
g.DrawImage(img, 0, 0, img.Width, img.Height);
g.DrawImage(reflection, 0, img.Height + offset, reflection.Width, reflection.Height);
}
return(result);
}
private Image DrawWatermarkText(Image img, string drawText)
{
if (!string.IsNullOrEmpty(drawText) && Config.WatermarkFont.Size > 0)
{
Font font = null;
Brush backgroundBrush = null;
try
{
int offset = Config.WatermarkOffset;
font = Config.WatermarkFont;
Size textSize = TextRenderer.MeasureText(drawText, font);
Size labelSize = new Size(textSize.Width + 10, textSize.Height + 10);
Point labelPosition = FindPosition(Config.WatermarkPositionMode, offset, img.Size, new Size(textSize.Width + 10, textSize.Height + 10), 1);
if (Config.WatermarkAutoHide && ((img.Width < labelSize.Width + offset) || (img.Height < labelSize.Height + offset)))
{
return(img);
}
Rectangle labelRectangle = new Rectangle(Point.Empty, labelSize);
Color fontColor = Config.WatermarkFontArgb;
using (Bitmap bmp = new Bitmap(labelRectangle.Width + 1, labelRectangle.Height + 1))
using (Graphics g = Graphics.FromImage(bmp))
{
g.SmoothingMode = SmoothingMode.HighQuality;
g.TextRenderingHint = TextRenderingHint.AntiAliasGridFit;
if (Config.WatermarkUseCustomGradient)
{
backgroundBrush = GradientMaker.CreateGradientBrush(labelRectangle.Size, Config.WatermarkGradient);
}
else
{
backgroundBrush = new LinearGradientBrush(labelRectangle, Config.WatermarkGradient1Argb, Config.WatermarkGradient2Argb, Config.WatermarkGradientType);
}
using (GraphicsPath gPath = new GraphicsPath())
using (Pen borderPen = new Pen(Config.WatermarkBorderArgb))
{
gPath.AddRoundedRectangle(labelRectangle, Config.WatermarkCornerRadius);
g.FillPath(backgroundBrush, gPath);
g.DrawPath(borderPen, gPath);
}
using (Brush textBrush = new SolidBrush(fontColor))
using (StringFormat sf = new StringFormat {
Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center
})
{
g.DrawString(drawText, font, textBrush, bmp.Width / 2f, bmp.Height / 2f, sf);
}
using (Graphics gImg = Graphics.FromImage(img))
{
gImg.SmoothingMode = SmoothingMode.HighQuality;
gImg.DrawImage(bmp, labelPosition.X, labelPosition.Y, bmp.Width, bmp.Height);
if (Config.WatermarkAddReflection)
{
using (Bitmap bmp2 = ImageHelpers.AddReflection(bmp, 50, 150, 10))
{
gImg.DrawImage(bmp2, new Rectangle(labelPosition.X, labelPosition.Y + bmp.Height - 1, bmp2.Width, bmp2.Height));
}
}
}
}
}
catch (Exception ex)
{
DebugHelper.WriteException(ex, "Error while drawing watermark");
}
finally
{
if (font != null)
{
font.Dispose();
}
if (backgroundBrush != null)
{
backgroundBrush.Dispose();
}
}
}
return(img);
}
