/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.Paint"></see> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Windows.Forms.PaintEventArgs"></see> that contains the event data.</param>
protected override void OnPaint(PaintEventArgs e)
{
if (this.Watermark != null)
{
if (this.Desaturate)
{
NuGenWatermarkRenderer.DrawDesaturatedWatermark(
e.Graphics
, _watermark
, this.ClientRectangle
, _watermarkTransparency
);
}
else
{
NuGenWatermarkRenderer.DrawWatermark(
e.Graphics
, _watermark
, this.ClientRectangle
, _watermarkTransparency
);
}
}
base.OnPaint(e);
}
public static void DrawDesaturatedWatermark(Graphics g, Image watermark, Rectangle bounds, int transparency)
{
int width = watermark.Width;
int height = watermark.Height;
Image desaturatedImage = new Bitmap(width, height, PixelFormat.Format32bppArgb);
using (Graphics desaturatedGrfx = Graphics.FromImage(desaturatedImage))
{
desaturatedGrfx.DrawImage(
watermark,
new Rectangle(0, 0, width, height),
0, 0, width, height,
GraphicsUnit.Pixel,
NuGenControlPaint.GetDesaturatedImageAttributes()
);
}
NuGenWatermarkRenderer.DrawWatermark(g, desaturatedImage, bounds, transparency);
}
/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.Paint"></see> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Windows.Forms.PaintEventArgs"></see> that contains the event data.</param>
protected override void OnPaint(PaintEventArgs e)
{
Graphics g = e.Graphics;
Rectangle bounds = this.ClientRectangle;
if (bounds.Width > 0 && bounds.Height > 0)
{
using (Brush brush = new LinearGradientBrush(bounds, this.StartGradientColor, this.EndGradientColor, this.GradientDirection))
{
g.FillRectangle(brush, bounds);
}
if (this.Watermark != null)
{
Rectangle watermarkBounds = NuGenControlPaint.ImageBoundsFromContentAlignment(
this.WatermarkSize
, this.ClientRectangle
, this.WatermarkAlign
);
if (this.Desaturate)
{
NuGenWatermarkRenderer.DrawDesaturatedWatermark(
g
, this.Watermark
, watermarkBounds
, this.WatermarkTransparency
);
}
else
{
NuGenWatermarkRenderer.DrawWatermark(
g
, this.Watermark
, watermarkBounds
, this.WatermarkTransparency
);
}
}
}
}
