///
/// <summary>
/// Draw all color pointers for palette</summary>
///
protected void DrawPointers(
)
{
int radius = (int)Radius;
double ewidth = COLOR_POINTER_DIAMETER;
double pinradius = ewidth / 2;
if (Palette != null)
{
double gradRadius = ValueRadius;
double[] angles = new double[Palette.Colors.Count];
double[] radCoff = new double[Palette.Colors.Count];
DoubleColor[] wheelColors = new DoubleColor[Palette.Colors.Count];
for (int i = 0; i < angles.Length; ++i)
{
PaletteColor pc = Palette.Colors[i];
double coff = 1;
switch (PaintMethod)
{
case WheelPaintMethod.Brightness:
coff = pc.DoubleColor.ToAHSB().Brightness;
var c = pc.DoubleColor.ToAHSB();
c.Saturation = 1.0;
wheelColors[i] = c.Double();
break;
case WheelPaintMethod.InverseLuminance:
coff = pc.DoubleColor.ToAHSL().Luminance;
var c1 = pc.DoubleColor.ToAHSL();
c1.Saturation = 1.0;
wheelColors[i] = c1.Double();
break;
case WheelPaintMethod.Saturation:
coff = pc.DoubleColor.Saturation;
var c2 = pc.DoubleColor.ToAHSB();
c2.Brightness = 1.0;
wheelColors[i] = c2.Double();
break;
case WheelPaintMethod.Luminance:
coff = 1.0 - pc.DoubleColor.ToAHSL().Luminance;
var c3 = pc.DoubleColor.ToAHSL();
c3.Saturation = 1.0;
wheelColors[i] = c3.Double();
break;
default:
throw new NotImplementedException();
}
angles[i] = Wheel.GetAngle(pc.DoubleColor);
radCoff[i] = coff;
}
if (m_schemaElements == null || m_schemaElements.Length != angles.Length)
{
if (m_schemaElements != null)
{
foreach (Line l in m_lines)
{
canvas.Children.Remove(l);
}
foreach (ColorPinpoint e in m_schemaElements)
{
canvas.Children.Remove(e);
}
}
m_schemaElements = new ColorPinpoint[angles.Length];
m_lines = new Line[angles.Length];
for (int i = 0; i < m_schemaElements.Length; ++i)
{
m_schemaElements[i] = new ColorPinpoint()
{
Opacity = 0.9,
IsHitTestVisible = true,
// Width = ewidth,
Height = ewidth,
CurrentColor = Colors.Black,
Tag = i,
PaletteColor = Palette.Colors[i]
};
m_schemaElements[i].SetValue(Canvas.ZIndexProperty, COLOR_POINTER_ZORDER);
m_schemaElements[i].SetValue(ToolTipService.ToolTipProperty, Palette.Colors[i].Name);
canvas.Children.Add(m_schemaElements[i]);
m_lines[i] = new Line()
{
Opacity = 0.0,
StrokeThickness = 2,
Stroke = Colors.Black.ToBrush()
};
m_lines[i].SetValue(Canvas.ZIndexProperty, COLOR_LINE_ZORDER);
canvas.Children.Add(m_lines[i]);
if (i == 0)
{
m_main = m_schemaElements[i];
m_main.IsMain = true;
SetMainPointEvents(m_main);
}
else
{
SetSecondaryPointEvents(m_schemaElements[i]);
}
}
}
for (int i = 0; i < m_schemaElements.Length; ++i)
{
double angle = Wheel.FixAngle(angles[i] - m_angleShift);
double rad = MathEx.ToRadians(angle);
double coff = radCoff[i];
double x = Math.Cos(rad) * (gradRadius - pinradius) * coff + radius;
double y = -Math.Sin(rad) * (gradRadius - pinradius) * coff + radius;
AHSB hsb = Palette.Colors[i].Color;
x -= pinradius;
y -= pinradius;
m_schemaElements[i].SetValue(Canvas.LeftProperty, x);
m_schemaElements[i].SetValue(Canvas.TopProperty, y);
m_schemaElements[i].CurrentColor = hsb.Double().ToColor();
m_lines[i].X1 = radius;
m_lines[i].Y1 = radius;
m_lines[i].X2 = x + pinradius;
m_lines[i].Y2 = y + pinradius;
}
}
}