public unsafe void HueSaturation(int hueDelta, int satDelta, int lightness)
{
ImageSurface dest = Surface.Clone();
ColorBgra * dstPtr = (ColorBgra *)dest.DataPtr;
int len = Surface.Data.Length / 4;
// map the range [0,100] -> [0,100] and the range [101,200] -> [103,400]
if (satDelta > 100)
{
satDelta = ((satDelta - 100) * 3) + 100;
}
UnaryPixelOp op;
if (hueDelta == 0 && satDelta == 100 && lightness == 0)
{
op = new UnaryPixelOps.Identity();
}
else
{
op = new UnaryPixelOps.HueSaturationLightness(hueDelta, satDelta, lightness);
}
op.Apply(dstPtr, len);
using (Context g = new Context(Surface)) {
g.AppendPath(PintaCore.Workspace.ActiveDocument.Selection.SelectionPath);
g.FillRule = Cairo.FillRule.EvenOdd;
g.Clip();
g.SetSource(dest);
g.Paint();
}
(dest as IDisposable).Dispose();
}
public unsafe void HueSaturation(int hueDelta, int satDelta, int lightness)
{
ImageSurface dest = Surface.Clone ();
ColorBgra* dstPtr = (ColorBgra*)dest.DataPtr;
int len = Surface.Data.Length / 4;
// map the range [0,100] -> [0,100] and the range [101,200] -> [103,400]
if (satDelta > 100)
satDelta = ((satDelta - 100) * 3) + 100;
UnaryPixelOp op;
if (hueDelta == 0 && satDelta == 100 && lightness == 0)
op = new UnaryPixelOps.Identity ();
else
op = new UnaryPixelOps.HueSaturationLightness (hueDelta, satDelta, lightness);
op.Apply (dstPtr, len);
using (Context g = new Context (Surface)) {
g.AppendPath (PintaCore.Layers.SelectionPath);
g.FillRule = FillRule.EvenOdd;
g.Clip ();
g.SetSource (dest);
g.Paint ();
}
(dest as IDisposable).Dispose ();
}