protected virtual void PaintButtonBackground(FluidPaintEventArgs e)
{
const int const_radius = 8;
if (this.shape != ButtonShape.Flat || IsDown)
{
Rectangle rect = ButtonRectangle;
rect.Width--;
rect.Height--;
if (rect.Width < 1 || rect.Height < 1)
{
return;
}
rect.Offset(e.ControlBounds.X, e.ControlBounds.Y);
Graphics g = e.Graphics;
int radius = e.ScaleX(const_radius);
if (radius > rect.Width / 2) radius = rect.Width / 2;
Color endColor = this.BackColor;
if (!Enabled)
{
endColor = ColorConverter.AlphaBlendColor(Color.Black, endColor, 128);
}
int alpha = Enabled ? 127 : 32;
Color startColor = ColorConverter.AlphaBlendColor(endColor, Color.White, alpha); //Color.FromArgb(0x7fffffff);
Color borderColor = ColorConverter.AlphaBlendColor(endColor, Color.White, 100);
GraphicShape shape = ButtonShapeToGraphic(this.shape);
using (GraphicsPlus gp = new GraphicsPlus(g))
{
if (GradientFill)
{
GraphicsPlus.GradientMode mode = IsDown ? GraphicsPlus.GradientMode.Bottom : GraphicsPlus.GradientMode.Top;
gp.GradientFillShape(rect, radius, startColor, endColor, mode, shape, corners);
using (PenPlus pen = new PenPlus(borderColor, (float)1))
{
gp.DrawShape(rect, radius, pen, shape, corners);
}
}
else
{
if (IsDown)
{
endColor = ColorConverter.AlphaBlendColor(endColor, endColor, 128);
}
gp.GradientFillShape(rect, radius, endColor, endColor, GraphicsPlus.GradientMode.Bottom, shape, corners);
using (PenPlus pen = new PenPlus(borderColor, (float)1))
{
gp.DrawShape(rect, radius, pen, shape, corners);
}
}
}
}
PerformPaintButtonContent(e);
}
