private PointF GetColorLocation(HSLManager _manager)
{
double angle = (_manager.H * Math.PI) / 180;
double locationRadius = _radius * _manager.S;
return(GetColorLocation(angle, locationRadius));
}
static HSLManager()
{
Empty = new HSLManager
{
IsEmpty = true
};
}
/// <summary>Raises the <see cref="ColorChanged" /> event.</summary>
/// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
private void OnColorChanged(EventArgs e)
{
if (!LockUpdates)
{
HslManager = new HSLManager(Color);
}
Refresh();
EventHandler handler = (EventHandler)Events[EventColorChanged];
handler?.Invoke(this, e);
}
public override bool Equals(object obj)
{
bool result;
if (obj is HSLManager)
{
HSLManager _manager = (HSLManager)obj;
result = this == _manager;
}
else
{
result = false;
}
return(result);
}
private void DrawColorPicker(PaintEventArgs e, HSLManager _manager, bool includeFocus)
{
var x = 0;
var y = 0;
switch (_pickType)
{
case PickerType.Rectangle:
{
x = _mousePosition.X;
y = _mousePosition.Y;
break;
}
case PickerType.Wheel:
{
PointF location = GetColorLocation(_manager);
if (!float.IsNaN(location.X) && !float.IsNaN(location.Y))
{
x = (int)location.X - (SelectionSize / 2);
y = (int)location.Y - (SelectionSize / 2);
}
break;
}
default:
throw new ArgumentOutOfRangeException();
}
// Create the button path
GraphicsPath _buttonGraphicsPath = VisualBorderRenderer.CreateBorderTypePath(new Rectangle(x - (SelectionSize / 2), y - (SelectionSize / 2), SelectionSize, SelectionSize), 10, 1, ShapeTypes.Rounded);
// Draw button
e.Graphics.FillPath(new SolidBrush(_buttonColor), _buttonGraphicsPath);
// Draw border
VisualBorderRenderer.DrawBorderStyle(e.Graphics, _pickerBorder, _buttonGraphicsPath, MouseState);
if (Focused && includeFocus)
{
ControlPaint.DrawFocusRectangle(e.Graphics, new Rectangle(x - 1, y - 1, SelectionSize + 2, SelectionSize + 2));
}
}
private void SetColor(Point point)
{
if (_pickType == PickerType.Rectangle)
{
LockUpdates = true;
Color = ColorUtil.CursorPointerColor();
LockUpdates = false;
}
else
{
double dx = Math.Abs(point.X - _centerPoint.X - Padding.Left);
double dy = Math.Abs(point.Y - _centerPoint.Y - Padding.Top);
double angle = (Math.Atan(dy / dx) / Math.PI) * 180;
double distance = Math.Pow(Math.Pow(dx, 2) + Math.Pow(dy, 2), 0.5);
double saturation = distance / _radius;
if (distance < 6)
{
saturation = 0; // snap to center
}
if (point.X < _centerPoint.X)
{
angle = 180 - angle;
}
if (point.Y > _centerPoint.Y)
{
angle = 360 - angle;
}
LockUpdates = true;
HslManager = new HSLManager(angle, saturation, 0.5);
Color = HslManager.ToRgbColor();
LockUpdates = false;
}
}
