public void UpdateFill(CoreColor min, CoreColor max)
{
Background = new LinearGradientBrush
{
StartPoint = new Point(0, 0),
EndPoint = new Point(0, 1),
GradientStops = new GradientStopCollection
{
new GradientStop
{
Color = new Color
{
A = min.A,
R = min.R,
G = min.G,
B = min.B
},
Offset = 0
},
new GradientStop
{
Color = new Color
{
A = max.A,
R = max.R,
G = max.G,
B = max.B
},
Offset = 1
}
}
};
}
private static CoreColor ColorInterpolation(IList <CoreGradientStop> gradients, double weight)
{
CoreColor from = new CoreColor(0, 0, 0, 0), to = new CoreColor(0, 0, 0, 0);
double fromOffset = 0, toOffset = 0;
for (var i = 0; i < gradients.Count; i++)
{
// ReSharper disable once InvertIf
if (gradients[i].Offset <= weight && gradients[i + 1].Offset >= weight)
{
from = gradients[i].Color;
to = gradients[i + 1].Color;
fromOffset = gradients[i].Offset;
toOffset = gradients[i + 1].Offset;
break;
}
}
return(new CoreColor(
InterpolateColorComponent(from.A, to.A, fromOffset, toOffset, weight),
InterpolateColorComponent(from.R, from.R, fromOffset, toOffset, weight),
InterpolateColorComponent(from.G, to.G, fromOffset, toOffset, weight),
InterpolateColorComponent(from.B, to.B, fromOffset, toOffset, weight)));
}
public static Color GetColor(CoreColor color)
{
var uiColor = Color.White;
if (color != null)
{
uiColor = new Color((byte)color.Red, (byte)color.Green, (byte)color.Blue, (byte)color.Alpha);
}
return(uiColor);
}
