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);
}
void OnWheelColorChanged(object sender, EventArgs e)
{
m_selectedColor.Hue = m_colorWheel.SelectedHSLColor.Hue;
m_selectedColor.Saturation = m_colorWheel.SelectedHSLColor.Saturation;
SelectedHSLColor = m_selectedColor;
}
void UpdateInfo(Color c, HSLColor hsl)
{
// Set RGBA fields.
txtR.Text = c.R.ToString();
txtG.Text = c.G.ToString();
txtB.Text = c.B.ToString();
txtA.Text = Math.Round( (c.A / 255f) , 2 ).ToString();
txtRGBA.Text = this.RGBA;
// Set HSL fields.
txtH.Text = Math.Round(hsl.Hue, 2).ToString();
txtS.Text = Math.Round(hsl.Saturation * 255f, 2).ToString();
txtL.Text = Math.Round(hsl.Lightness * 255f, 2).ToString();
// Hex
txtHex.Text = this.HexColor.ToString();
//m_infoLabel.Text = sRGBA;
}
void OnLightnessColorChanged(object sender, EventArgs e)
{
m_selectedColor.Lightness = m_colorBar.SelectedHSLColor.Lightness;
SelectedHSLColor = m_selectedColor;
}
protected override void SetPercent(float percent)
{
base.SetPercent(percent);
m_selectedColor.Lightness = percent / 100;
SelectedHSLColor = m_selectedColor;
}
