private UnaryPixelOp MakeUop()
{
UnaryPixelOp op;
byte[][] transferCurves;
int entries;
switch (Data.Mode)
{
case ColorTransferMode.Rgb:
UnaryPixelOps.ChannelCurve cc = new UnaryPixelOps.ChannelCurve();
transferCurves = new byte[][] { cc.CurveR, cc.CurveG, cc.CurveB };
entries = 256;
op = cc;
break;
case ColorTransferMode.Luminosity:
UnaryPixelOps.LuminosityCurve lc = new UnaryPixelOps.LuminosityCurve();
transferCurves = new byte[][] { lc.Curve };
entries = 256;
op = lc;
break;
default:
throw new InvalidEnumArgumentException();
}
int channels = transferCurves.Length;
for (int channel = 0; channel < channels; channel++)
{
SortedList <int, int> channelControlPoints = Data.ControlPoints[channel];
IList <int> xa = channelControlPoints.Keys;
IList <int> ya = channelControlPoints.Values;
SplineInterpolator interpolator = new SplineInterpolator();
int length = channelControlPoints.Count;
for (int i = 0; i < length; i++)
{
interpolator.Add(xa[i], ya[i]);
}
for (int i = 0; i < entries; i++)
{
transferCurves[channel][i] = Utility.ClampToByte(interpolator.Interpolate(i));
}
}
return(op);
}
protected override void DrawGeometry(StreamGeometryContext context)
{
var interpolator = new SplineInterpolator();
foreach (var lineConnector in Connectors)
{
interpolator.Add(lineConnector.PosPoint.X, lineConnector.PosPoint.Y);
}
var start = Connectors.Min(x => x.PosPoint.X);
var end = Connectors.Max(x => x.PosPoint.X);
var step = Math.Sign(end - start);
var firstY = interpolator.Interpolate(start);
context.BeginFigure(new Point(start, firstY), true, false);
start += step;
for (var x = start; x <= end; x += step)
{
var y = interpolator.Interpolate(x);
context.LineTo(new Point(x, y), true, true);
}
}
private UnaryPixelOp MakeUop (SortedList<int, int>[] controlPoints, ColorTransferMode mode)
{
UnaryPixelOp op;
byte[][] transferCurves;
int entries;
switch (mode) {
case ColorTransferMode.Rgb:
var cc = new ChannelCurveOp ();
transferCurves = new byte[][] { cc.CurveR, cc.CurveG, cc.CurveB };
entries = 256;
op = cc;
break;
case ColorTransferMode.Luminosity:
var lc = new LuminosityCurveOp ();
transferCurves = new byte[][] { lc.Curve };
entries = 256;
op = lc;
break;
default:
throw new InvalidEnumArgumentException ();
}
int channels = transferCurves.Length;
for (int channel = 0; channel < channels; channel++) {
var channelControlPoints = controlPoints[channel];
var xa = channelControlPoints.Keys;
var ya = channelControlPoints.Values;
SplineInterpolator interpolator = new SplineInterpolator ();
int length = channelControlPoints.Count;
for (int i = 0; i < length; i++) {
interpolator.Add (xa[i], ya[i]);
}
for (int i = 0; i < entries; i++) {
transferCurves[channel][i] = Utility.ClampToByte (interpolator.Interpolate (i));
}
}
return op;
}
private void DrawSpline(Context g)
{
var infos = GetDrawingInfos();
foreach (var controlPoints in ControlPoints)
{
int points = controlPoints.Count;
SplineInterpolator interpolator = new SplineInterpolator();
IList <int> xa = controlPoints.Keys;
IList <int> ya = controlPoints.Values;
PointD[] line = new PointD[size];
for (int i = 0; i < points; i++)
{
interpolator.Add(xa[i], ya[i]);
}
for (int i = 0; i < line.Length; i++)
{
line[i].X = (float)i;
line[i].Y = (float)(Utility.Clamp(size - 1 - interpolator.Interpolate(i), 0, size - 1));
}
g.LineWidth = 2;
g.LineJoin = LineJoin.Round;
g.MoveTo(line[0]);
for (int i = 1; i < line.Length; i++)
{
g.LineTo(line[i]);
}
infos.MoveNext();
var info = infos.Current;
g.SetSourceColor(info.Color);
g.LineWidth = info.IsActive ? 2 : 1;
g.Stroke();
}
}
private UnaryPixelOp MakeUop()
{
UnaryPixelOp uopRet;
byte[][] transferCurves;
int entries;
switch (colorTransferMode)
{
case ColorTransferMode.Rgb:
UnaryPixelOps.ChannelCurve cc = new UnaryPixelOps.ChannelCurve();
transferCurves = new byte[][] { cc.CurveR, cc.CurveG, cc.CurveB };
entries = 256;
uopRet = cc;
break;
case ColorTransferMode.Luminosity:
UnaryPixelOps.LuminosityCurve lc = new UnaryPixelOps.LuminosityCurve();
transferCurves = new byte[][] { lc.Curve };
entries = 256;
uopRet = lc;
break;
default:
throw new InvalidEnumArgumentException();
}
int channels = transferCurves.Length;
for (int channel = 0; channel < channels; ++channel)
{
SortedList<int, int> channelControlPoints = controlPoints[channel];
IList<int> xa = channelControlPoints.Keys;
IList<int> ya = channelControlPoints.Values;
SplineInterpolator interpolator = new SplineInterpolator();
int length = channelControlPoints.Count;
for (int i = 0; i < length; ++i)
{
interpolator.Add(xa[i], ya[i]);
}
for (int i = 0; i < entries; ++i)
{
transferCurves[channel][i] = Utility.ClampToByte(interpolator.Interpolate(i));
}
}
return uopRet;
}