public void GradientFillShape(Rectangle rect, int radius, Color startColor, Color endColor, GradientMode gradientMode, GraphicShape shape, RoundedCorners corners)
{
if (rect.Width < 1 || rect.Height < 1) return;
PathFunc func = GetShapeFunc(shape);
SmoothingMode mode = SmoothingMode;
try
{
SmoothingMode = SmoothingMode.None;
int x = rect.X, y = rect.Y, w = rect.Width, h = rect.Height;
int reflectionHeight = h / 2;
PointF p1 = new PointF(x, y);
PointF p2 = new PointF(x, y + reflectionHeight);
if (gradientMode == GradientMode.Top)
{
PathMode pathMode = endColor.A == 255 ? PathMode.Bottom : PathMode.All;
using (GraphicsPath path = func(rect, radius, reflectionHeight, pathMode, corners))
{
using (SolidBrushPlus brush = new SolidBrushPlus(endColor))
{
this.FillPath(brush, path);
}
}
using (GraphicsPath path = func(rect, radius, reflectionHeight, PathMode.Top, corners))
{
using (LinearGradientBrush brush = new LinearGradientBrush(p1, p2, startColor, endColor))
{
this.FillPath(brush, path);
}
}
}
else
{
PathMode pathMode = endColor.A == 255 ? PathMode.Top : PathMode.All;
using (GraphicsPath path = func(rect, radius, reflectionHeight, PathMode.All, corners))
{
using (SolidBrushPlus brush = new SolidBrushPlus(endColor))
{
this.FillPath(brush, path);
}
}
using (GraphicsPath path = func(rect, radius, reflectionHeight, PathMode.Bottom, corners))
{
p1.Y = y + reflectionHeight - 1;
p2.Y = y + h;
using (LinearGradientBrush brush = new LinearGradientBrush(p1, p2, endColor, startColor))
{
this.FillPath(brush, path);
}
}
}
}
finally
{
SmoothingMode = mode;
}
}
public void PaintHeaderBackground()
{
Graphics g = Graphics;
Rectangle r = ClientBounds;
Color color = BackColor;
Color startColor = ColorConverter.AlphaBlendColor(Color.White, color, 100);
if (IsTransparent)
{
color = ColorConverter.AlphaColor(color, 200);
startColor = ColorConverter.AlphaColor(startColor, 150);
using (GraphicsPlus gp = new GraphicsPlus(g))
{
PointF p1 = new PointF(r.X, r.Y);
PointF p2 = new PointF(r.X, r.Bottom);
using (LinearGradientBrush backGround = new LinearGradientBrush(p1, p2, startColor, color))
{
gp.FillRectangle(backGround, r);
}
}
}
else
{
GdiExt.GradientFill(g, r, startColor, color, GdiExt.FillDirection.TopToBottom);
}
}
