protected override void OnRender(DrawingContext dc)
{
LinearGradientBrush h = new LinearGradientBrush();
h.StartPoint = new Point(0, 0);
h.EndPoint = new Point(1, 0);
h.GradientStops.Add(new GradientStop(Colors.White, 0.00));
h.GradientStops.Add(new GradientStop(ColorPickerUtil.ColorFromHSB(Hue, 1, 1), 1.0));
dc.DrawRectangle(h, null, new Rect(0, 0, ActualWidth, ActualHeight));
LinearGradientBrush v = new LinearGradientBrush();
v.StartPoint = new Point(0, 0);
v.EndPoint = new Point(0, 1);
v.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0, 0, 0), 1.00));
v.GradientStops.Add(new GradientStop(Color.FromArgb(0x80, 0, 0, 0), 0.50));
v.GradientStops.Add(new GradientStop(Color.FromArgb(0x00, 0, 0, 0), 0.00));
dc.DrawRectangle(v, null, new Rect(0, 0, ActualWidth, ActualHeight));
UpdateSaturationOffset();
UpdateBrightnessOffset();
}
public void UpdateColor()
{
Color = ColorPickerUtil.ColorFromHSB(Hue, Saturation, Brightness);
ColorBrush = new SolidColorBrush(Color);
}
private void UpdateColor()
{
Color = ColorPickerUtil.ColorFromHSB(Hue, 1, 1);
ColorBrush = new SolidColorBrush(Color);
}