static HslColor()
{
Empty = new HslColor
{
IsEmpty = true
};
}
private void TxtColor_TextChanged(object sender, EventArgs e)
{
if (!LockUpdates)
{
LockUpdates = true;
// Process text color
var regex = _ckbHex.CheckState == CheckState.Checked
? new Regex(@"#[A-F0-9]{2}[A-F0-9]{2}[A-F0-9]{2}")
: new Regex(@"\d{1,3}, \d{1,3}, \d{1,3}");
if (regex.IsMatch(_txtColor.Text))
{
int r, g, b;
if (_txtColor.Text.StartsWith("#"))
{
r = Convert.ToInt32(_txtColor.Text.Substring(1, 2), 16);
g = Convert.ToInt32(_txtColor.Text.Substring(3, 2), 16);
b = Convert.ToInt32(_txtColor.Text.Substring(5, 2), 16);
}
else
{
var parts = _txtColor.Text.Split(new[] {','}, StringSplitOptions.RemoveEmptyEntries);
r = int.Parse(parts[0]);
g = int.Parse(parts[1]);
b = int.Parse(parts[2]);
}
Color = Color.FromArgb(r, g, b);
HslColor = new HslColor(_color);
}
LockUpdates = false;
}
}
/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.BackColorChanged" /> event.
/// </summary>
/// <param name="e">An <see cref="T:System.EventArgs" /> that contains the event data.</param>
protected override void OnBackColorChanged(EventArgs e)
{
base.OnBackColorChanged(e);
_borderColor = new HslColor(BackColor);
_borderColor.L -= 0.1F;
}
/// <summary>
/// Gets the point within the wheel representing the source color.
/// </summary>
/// <param name="color">The color.</param>
protected virtual PointF GetColorLocation(HslColor color)
{
double angle;
double radius;
angle = color.H * Math.PI / 180;
;
radius = _radius * color.S;
return this.GetColorLocation(angle, radius);
}
/// <summary>
/// Initializes this instance.
/// </summary>
private void Initialize()
{
// Set serveral option for paint
SetStyle(
ControlStyles.AllPaintingInWmPaint |
ControlStyles.OptimizedDoubleBuffer |
ControlStyles.ResizeRedraw |
ControlStyles.UserPaint, true);
_borderColor = new HslColor(BackColor);
_borderColor.L -= 0.1F;
RecreatePath();
}