public void SaveRestoreRadialGradient()
{
// Pattern is saved
InitBlank ();
var g = new RadialGradient (20, 20, 5, 30, 30, 30);
g.AddColorStop (0, Colors.Red);
g.AddColorStop (0.5, Colors.Green);
g.AddColorStop (1, Colors.Blue);
context.Save ();
context.Pattern = g;
context.Restore ();
context.Rectangle (5, 5, 40, 40);
context.Fill ();
CheckImage ("SaveRestoreRadialGradient.png");
}
protected override void OnDraw (Xwt.Drawing.Context ctx, Rectangle dirtyRect)
{
if (Bounds.IsEmpty)
return;
ctx.Rectangle (0, 0, Bounds.Width, Bounds.Height);
Gradient g = null;
if (Linear)
g = new LinearGradient (xStart, 0, xEnd, Bounds.Height);
else
g = new RadialGradient (Bounds.Width / 2, Bounds.Height / 2, Bounds.Width / 2, Bounds.Width / 2, Bounds.Height / 2, xStart/4 + Bounds.Width / 8);
g.AddColorStop (0, stop1);
g.AddColorStop (1, stop2);
ctx.Pattern = g;
ctx.Fill ();
Rectangle r = rect.Inflate (5, 5);
ctx.Rectangle (r);
ctx.SetColor (new Color (0,0,1));
ctx.SetLineWidth (1);
ctx.Stroke ();
}
public void RadialGradientSmall()
{
InitBlank ();
var g = new RadialGradient (5, 5, 5, 30, 30, 15);
g.AddColorStop (0, Colors.Red);
g.AddColorStop (0.5, Colors.Green);
g.AddColorStop (1, Colors.Blue);
context.Rectangle (5, 5, 40, 40);
context.Pattern = g;
context.Fill ();
CheckImage ("RadialGradientSmall.png");
}
RadialGradient GetCornerGradient(double x, double y, double radius, double thickness)
{
var gradient = new RadialGradient (x, y, radius - thickness, x, y, radius + thickness);
gradient.AddColorStop (0, BackgroundColor);
gradient.AddColorStop (1, GetColor (BackgroundColor, 0.75));
return gradient;
}
