protected override void OnPlaneScroll(ColorSelectionPlane plane)
{
double newsaturation = XYZ.ClipValue(plane.PositionX, 0.0, 1.0),
newvalue = 1.0 - XYZ.ClipValue(plane.PositionY, 0.0, 1.0);
if (newsaturation == _color.S &&
newvalue == _color.V)
{
return;
}
_color.S = newsaturation;
_color.V = newvalue;
RaiseColorChanged();
}
// interpolates alpha list
private byte Interpolate(AlphaPoint[] list, int a, int b, double pos)
{
if (b < a)
{
return(0);
}
if (a == b)
{
return((byte)(list[a].Alpha * 255.0));
}
//compute involving focus position
return((byte)XYZ.ClipValue(
(list[a].Alpha + FocusToBalance(list[a].Position, list[b].Position, list[b].Focus, pos)
* (list[b].Alpha - list[a].Alpha)) * 255.0, 0.0, 255.0));
}
protected override void OnPlaneScroll(ColorSelectionPlane plane)
{
double newhue = XYZ.ClipValue(plane.PositionX, 0.0, 1.0),
newsaturation = 1.0 - XYZ.ClipValue(plane.PositionY, 0.0, 1.0);
if (newhue == _color.H &&
newsaturation == _color.S)
{
return;
}
_color.H = newhue;
_color.S = newsaturation;
UpdateFaderImage();
RaiseColorChanged();
}
public bool SetPosition(double value)
{
value = XYZ.ClipValue(value, 0.0, 1.0);
if ((Control.ModifierKeys & Keys.Shift) != 0)
{
value = Math.Round(value * 8.0, 0) / 8.0;
}
if (value == _position)
{
return(false);
}
this.Invalidate(Rectangle.Inflate(GetScrollerRectangle(_position), 1, 1));
_position = value;
this.Invalidate(Rectangle.Inflate(GetScrollerRectangle(_position), 1, 1));
this.Update();
return(true);
}
public bool SetPosition(double posx, double posy)
{
posx = XYZ.ClipValue(posx, 0.0, 1.0);
posy = XYZ.ClipValue(posy, 0.0, 1.0);
if ((Control.ModifierKeys & Keys.Shift) != 0)
{
posx = Math.Round(posx * 8.0, 0) / 8.0;
posy = Math.Round(posy * 8.0, 0) / 8.0;
}
if (posx == _x && posy == _y)
{
return(false);
}
Invalidate(Rectangle.Inflate(GetCursorBounds(_x, _y), 1, 1));
_x = posx; _y = posy;
Invalidate(Rectangle.Inflate(GetCursorBounds(_x, _y), 1, 1));
this.Update();
return(true);
}
/// <summary>
/// Create a lighting value with the specified color and intensity
/// </summary>
/// <param name="color"></param>
/// <param name="intensity">Percentage value in the range 0.0 -> 1.0 (from 0% to 100%).</param>
public LightingValue(Color color, double intensity)
{
HSV.FromRGB(color, out _hue, out _saturation, out _value);
_intensity = XYZ.ClipValue(intensity, 0, 1);
}
public DiscreteValue(Color color, double intensity)
{
_color = color;
_intensity = XYZ.ClipValue(intensity, 0, 1);
}
