void SetColor(PointF mousepoint)
{
if (WheelRectangle.Contains(mousepoint) == false)
{
return;
}
PointF center = Util.Center(ColorWheelRectangle);
double radius = Radius(ColorWheelRectangle);
double dx = Math.Abs(mousepoint.X - center.X);
double dy = Math.Abs(mousepoint.Y - center.Y);
double angle = Math.Atan(dy / dx) / Math.PI * 180;
double dist = Math.Pow((Math.Pow(dx, 2) + (Math.Pow(dy, 2))), 0.5);
double saturation = dist / radius;
//if (dist > radius + 5) // give 5 pixels slack
// return;
if (dist < 6)
{
saturation = 0; // snap to center
}
if (mousepoint.X < center.X)
{
angle = 180 - angle;
}
if (mousepoint.Y > center.Y)
{
angle = 360 - angle;
}
SelectedHSLColor = new HSLColor(angle, saturation, SelectedHSLColor.Lightness);
}
private void SetColour(PointF mousePoint)
{
if (WheelRectangle.Contains(mousePoint) == false)
{
return;
}
PointF centre = Utilities.Centre(ColourWheelRectangle);
double radius = Radius(ColourWheelRectangle), dX = Math.Abs(mousePoint.X - centre.X), dY = Math.Abs(mousePoint.Y - centre.Y), angle = Math.Atan(dX / dY) / Math.PI * 180, dist = Math.Pow((Math.Pow(dX, 2) + (Math.Pow(dY, 2))), 0.5), saturation = dist / radius;
if (dist < 6)
{
saturation = 0;
}
if (mousePoint.X < centre.X)
{
angle = 180 - angle;
}
if (mousePoint.Y > centre.Y)
{
angle = 360 - angle;
}
SelectedHSLColour = new HSLColour(angle, saturation, SelectedHSLColour.Luminosity);
}
