public BCanvas(byte R, byte G, byte B, Bitmap colourBitmap) : base()
{
(double _, double S, double V) = HSB.RGBToHSB(R / 255.0, G / 255.0, B / 255.0);
this.Width = 128;
this.Height = 96;
Point v1 = new Point(51.673, 0);
Point v2 = new Point(104, 15.955);
Point v3 = new Point(76.327, 46.125);
Point v4 = new Point(24, 30.170);
Point v5 = new Point(51.673, 49.875);
Point v6 = new Point(104, 65.830);
Point v7 = new Point(76.327, 96);
Point v8 = new Point(24, 80.045);
Point v15 = v1 * (B / 255.0) + v5 * (1 - B / 255.0);
Point v26 = v2 * (B / 255.0) + v6 * (1 - B / 255.0);
Point v37 = v3 * (B / 255.0) + v7 * (1 - B / 255.0);
Point v48 = v4 * (B / 255.0) + v8 * (1 - B / 255.0);
Fill1 = new AnimatablePath4Points(v48, v8, v7, v37)
{
Fill = RGB.MiddleCubeBrush
};
this.Children.Add(Fill1.Path);
Fill2 = new AnimatablePath4Points(v37, v7, v6, v26)
{
Fill = RGB.DarkCubeBrush
};
this.Children.Add(Fill2.Path);
ColourCanvas = new Canvas()
{
Width = 256, Height = 256, ClipToBounds = false
};
ColourImage = new Image()
{
Source = colourBitmap
};
ColourCanvas.Children.Add(ColourImage);
PathGeometry border2Geometry = new PathGeometry();
PathFigure border2Figure = new PathFigure()
{
StartPoint = new Point(0, 256), IsClosed = false
};
border2Figure.Segments.Add(new LineSegment()
{
Point = new Point(256, 256)
});
border2Geometry.Figures.Add(border2Figure);
ColourCanvas.Children.Add(new Path()
{
Data = border2Geometry, StrokeThickness = 4, Stroke = RGB.MiddleCubeBrush
});
PathGeometry border3Geometry = new PathGeometry();
PathFigure border3Figure = new PathFigure()
{
StartPoint = new Point(256, 256), IsClosed = false
};
border3Figure.Segments.Add(new LineSegment()
{
Point = new Point(256, 0)
});
border3Geometry.Figures.Add(border3Figure);
ColourCanvas.Children.Add(new Path()
{
Data = border3Geometry, StrokeThickness = 4, Stroke = RGB.DarkCubeBrush
});
PositionEllipse = new Ellipse()
{
Width = 48, Height = 48, Fill = (S <0.5 && V> 0.5 ? Brushes.Black : Brushes.White)
};
PositionEllipse.RenderTransform = ColorPicker.GetTranslateTransform(G - 24, R - 24);
ColourCanvas.Children.Add(PositionEllipse);
double m11 = (v26.X - v15.X) / 256;
double m12 = (v37.X - v26.X) / 256;
double m21 = (v26.Y - v15.Y) / 256;
double m22 = (v37.Y - v26.Y) / 256;
ColourCanvasTransform = new AnimatableTransform(new Matrix(m11, m21, m12, m22, v15.X, v15.Y));
ColourCanvas.RenderTransform = ColourCanvasTransform.MatrixTransform;
ColourCanvas.RenderTransformOrigin = new RelativePoint(0, 0, RelativeUnit.Absolute);
this.Children.Add(ColourCanvas);
}
private void Update(ColorPicker.ColorSpaces colorSpace)
{
WriteableBitmap canvas2Dimage = null;
WriteableBitmap canvas1Dimage = null;
(byte R, byte G, byte B) = (RGB.R, RGB.G, RGB.B);
(double H, double S, double V) = (HSV.H, HSV.S, HSV.V);
(double L, double a, double b) = (LAB.L, LAB.a, LAB.b);
switch (colorSpace)
{
case ColorPicker.ColorSpaces.RGB:
switch (ColorComponent)
{
case ColorPicker.ColorComponents.R:
canvas1Dimage = AvaloniaColorPicker.RGB.GetR(G, B);
canvas2Dimage = AvaloniaColorPicker.RGB.GetGB(R);
break;
case ColorPicker.ColorComponents.G:
canvas1Dimage = AvaloniaColorPicker.RGB.GetG(R, B);
canvas2Dimage = AvaloniaColorPicker.RGB.GetRB(G);
break;
case ColorPicker.ColorComponents.B:
canvas1Dimage = AvaloniaColorPicker.RGB.GetB(R, G);
canvas2Dimage = AvaloniaColorPicker.RGB.GetRG(B);
break;
}
break;
case ColorPicker.ColorSpaces.HSB:
HSB.HSVToRGB(H, S, V, out R, out G, out B);
switch (ColorComponent)
{
case ColorPicker.ColorComponents.H:
canvas1Dimage = HSB.GetH();
canvas2Dimage = HSB.GetSB(H);
break;
case ColorPicker.ColorComponents.S:
canvas1Dimage = HSB.GetS(H, V);
canvas2Dimage = HSB.GetHB(S);
break;
case ColorPicker.ColorComponents.B:
canvas1Dimage = HSB.GetB(H, S);
canvas2Dimage = HSB.GetHS(V);
break;
}
break;
case ColorPicker.ColorSpaces.LAB:
Lab.FromLab(L, a, b, out R, out G, out B);
switch (ColorComponent)
{
case ColorPicker.ColorComponents.L:
canvas1Dimage = Lab.GetL(a, b);
canvas2Dimage = Lab.GetAB(L);
break;
case ColorPicker.ColorComponents.A:
canvas1Dimage = Lab.GetA(L, b);
canvas2Dimage = Lab.GetLB(a);
break;
case ColorPicker.ColorComponents.B:
canvas1Dimage = Lab.GetB(L, a);
canvas2Dimage = Lab.GetLA(b);
break;
}
break;
}
Canvas2D.Source = canvas2Dimage;
Canvas1D.Source = canvas1Dimage;
AlphaCanvas.Source = AvaloniaColorPicker.RGB.GetA(R, G, B);
}
protected override void OnPropertyChanged <T>(AvaloniaPropertyChangedEventArgs <T> change)
{
base.OnPropertyChanged(change);
if (change.Property == HSVProperty)
{
HSV hsv = (change.NewValue.Value as HSV?).Value;
double H = hsv.H;
double S = hsv.S;
double V = hsv.V;
ColourImage.Source = HSB.GetShiftedS(this.ColourBitmap, 20 * S, H < 0.5);
Point v23 = new Point(128 - 64 * (1 - S), 20);
Point v14 = new Point(64 * (1 - S), 20);
Point v67 = new Point(128 - 64 * (1 - S), 76);
double m11 = (v23.X - v14.X) / 128;
double m12 = (v67.X - v23.X) / 128;
double m21 = (v23.Y - v14.Y) / 256;
double m22 = (v67.Y - v23.Y) / 256;
if (S > 0)
{
PositionEllipse.Width = 56.0 / 256 * 48 / S * Math.Abs(Math.Sin(H * 2 * Math.PI));
PositionEllipse.Height = 48;
PositionEllipse.Fill = (S <0.5 && V> 0.5 ? Brushes.Black : Brushes.White);
if (H < 0.5)
{
PositionEllipse.RenderTransform = new TranslateTransform(64 - (56.0 / 256 * 48 / S) * 0.5 * Math.Abs(Math.Sin(H * 2 * Math.PI)) + Math.Cos(H * 2 * Math.PI) * 64, 256 - 256 * V - 24 + 256.0 / 56.0 * 20 * S * Math.Sin(H * 2 * Math.PI));
}
else
{
PositionEllipse.RenderTransform = new TranslateTransform(64 - (56.0 / 256 * 48 / S) * 0.5 * Math.Abs(Math.Sin(H * 2 * Math.PI)) + Math.Cos(H * 2 * Math.PI) * 64, 256 + 20 * S * 256 / 56 - 256 * V - 24 + 256.0 / 56.0 * 20 * S * Math.Sin(H * 2 * Math.PI));
}
}
else
{
PositionEllipse.Fill = null;
}
ColourCanvasTransform.Matrix = new Matrix(m11, m21, m12, m22, v14.X, v14.Y - (H < 0.5 ? 0 : (20 * S)));
TopEllipse.Width = 128 * S;
TopEllipse.Height = 40 * S;
TopEllipse.RenderTransform = new TranslateTransform(64 - 64 * S, 20 - 20 * S);
BottomEllipse.Width = 128 * S;
BottomEllipse.Height = 40 * S;
BottomEllipse.RenderTransform = new TranslateTransform(64 - 64 * S, 76 - 20 * S);
if (H < 0.5)
{
TopEllipse.Fill = HSB.LightCylinderBrush;
BottomEllipse.Fill = null;
}
else
{
BottomEllipse.Fill = HSB.DarkCylinderBrush;
TopEllipse.Fill = null;
}
}
}