public override GradientStopCollection GetSliderBrush(HSL HSL)
{
byte A = HSL.A;
double H = HSL.H;
double S = HSL.S;
double L = HSL.L;
return(new GradientStopCollection()
{
new GradientStop()
{
Offset = 0.0f,
Color = HSL.HSLtoRGB(A, H, S, 0)
},
new GradientStop()
{
Offset = 1.0f,
Color = HSL.HSLtoRGB(A, H, S, 100)
},
});
}
public override GradientStopCollection GetSliderBrush(HSL HSL)
{
byte A = HSL.A;
double H = HSL.H;
double S = HSL.S;
double L = HSL.L;
return(new GradientStopCollection()
{
new GradientStop()
{
Offset = 0,
Color = HSL.HSLtoRGB(A, 0, S, L)
},
new GradientStop()
{
Offset = 0.16666667,
Color = HSL.HSLtoRGB(A, 60, S, L)
},
new GradientStop()
{
Offset = 0.33333333,
Color = HSL.HSLtoRGB(A, 120, S, L)
},
new GradientStop()
{
Offset = 0.5,
Color = HSL.HSLtoRGB(A, 180, S, L)
},
new GradientStop()
{
Offset = 0.66666667,
Color = HSL.HSLtoRGB(A, 240, S, L)
},
new GradientStop()
{
Offset = 0.83333333,
Color = HSL.HSLtoRGB(A, 300, S, L)
},
new GradientStop()
{
Offset = 1,
Color = HSL.HSLtoRGB(A, 0, S, L)
},
});
}
public override void Draw(CanvasControl CanvasControl, CanvasDrawingSession ds, HSL HSL, Vector2 Center, float SquareHalfWidth, float SquareHalfHeight)
{
//Palette
Rect rect = new Rect(Center.X - SquareHalfWidth, Center.Y - SquareHalfHeight, SquareHalfWidth * 2, SquareHalfHeight * 2);
ds.FillRoundedRectangle(rect, 4, 4, new CanvasLinearGradientBrush(CanvasControl, Windows.UI.Colors.White, HSL.HSLtoRGB(HSL.H))
{
StartPoint = new Vector2(Center.X - SquareHalfWidth, Center.Y), EndPoint = new Vector2(Center.X + SquareHalfWidth, Center.Y)
});
ds.FillRoundedRectangle(rect, 4, 4, new CanvasLinearGradientBrush(CanvasControl, Windows.UI.Colors.Transparent, Windows.UI.Colors.Black)
{
StartPoint = new Vector2(Center.X, Center.Y - SquareHalfHeight), EndPoint = new Vector2(Center.X, Center.Y + SquareHalfHeight)
});
ds.DrawRoundedRectangle(rect, 4, 4, Windows.UI.Colors.Gray);
//Thumb
float px = ((float)HSL.S - 50) * SquareHalfWidth / 50 + Center.X;
float py = (50 - (float)HSL.L) * SquareHalfHeight / 50 + Center.Y;
ds.DrawCircle(px, py, 8, Windows.UI.Colors.Black, 4);
ds.DrawCircle(px, py, 8, Windows.UI.Colors.White, 2);
}