public static void Colourize(NSView control, Color color, Action drawAction)
{
var size = control.Frame.Size;
if (size.Width <= 0 || size.Height <= 0)
return;
var image = new NSImage(size);
image.LockFocusFlipped(control.IsFlipped);
drawAction();
image.UnlockFocus();
var ciImage = CIImage.FromCGImage(image.CGImage);
SD.SizeF realSize;
if (control.RespondsToSelector(selConvertSizeToBacking))
realSize = control.ConvertSizeToBacking(size);
else
realSize = control.ConvertSizeToBase(size);
if (control.IsFlipped)
{
var affineTransform = new NSAffineTransform();
affineTransform.Translate(0, realSize.Height);
affineTransform.Scale(1, -1);
var filter1 = new CIAffineTransform();
filter1.Image = ciImage;
filter1.SetValueForKey(affineTransform, CIInputTransform);
ciImage = filter1.ValueForKey(CIOutputImage) as CIImage;
}
var filter2 = new CIColorControls();
filter2.SetDefaults();
filter2.Image = ciImage;
filter2.Saturation = 0.0f;
ciImage = filter2.ValueForKey(CIOutputImage) as CIImage;
var filter3 = new CIColorMatrix();
filter3.SetDefaults();
filter3.Image = ciImage;
filter3.RVector = new CIVector(0, color.R, 0);
filter3.GVector = new CIVector(color.G, 0, 0);
filter3.BVector = new CIVector(0, 0, color.B);
ciImage = filter3.ValueForKey(CIOutputImage) as CIImage;
ciImage.Draw(new SD.RectangleF(SD.PointF.Empty, size), new SD.RectangleF(SD.PointF.Empty, realSize), NSCompositingOperation.SourceOver, 1);
}
public static void Colourize (NSView control, Color color, Action drawAction)
{
var size = control.Frame.Size;
var image = new NSImage (size);
image.LockFocusFlipped (control.IsFlipped);
drawAction ();
image.UnlockFocus ();
var ciImage = CIImage.FromData (image.AsTiff ());
if (control.IsFlipped) {
var realSize = control.ConvertSizeToBase (size);
var affineTransform = new NSAffineTransform ();
affineTransform.Translate (0, realSize.Height);
affineTransform.Scale (1, -1);
var filter1 = CIFilter.FromName ("CIAffineTransform");
filter1.SetValueForKey (ciImage, CIInputImage);
filter1.SetValueForKey (affineTransform, CIInputTransform);
ciImage = filter1.ValueForKey (CIOutputImage) as CIImage;
}
var filter2 = CIFilter.FromName ("CIColorControls");
filter2.SetDefaults ();
filter2.SetValueForKey (ciImage, CIInputImage);
filter2.SetValueForKey (new NSNumber (0.0f), CIInputSaturation);
ciImage = filter2.ValueForKey (CIOutputImage) as CIImage;
var filter3 = CIFilter.FromName ("CIColorMatrix");
filter3.SetDefaults ();
filter3.SetValueForKey (ciImage, CIInputImage);
filter3.SetValueForKey (new CIVector (0, color.R, 0), CIInputRVector);
filter3.SetValueForKey (new CIVector (color.G, 0, 0), CIInputGVector);
filter3.SetValueForKey (new CIVector (0, 0, color.B), CIInputBVector);
ciImage = filter3.ValueForKey (CIOutputImage) as CIImage;
image = new NSImage (size);
var rep = NSCIImageRep.FromCIImage (ciImage);
image.AddRepresentation (rep);
image.Draw (SD.PointF.Empty, new SD.RectangleF (SD.PointF.Empty, size), NSCompositingOperation.SourceOver, 1);
/* Use this when implemented in maccore:
ciImage.Draw (SD.PointF.Empty, new SD.RectangleF (SD.PointF.Empty, size), NSCompositingOperation.SourceOver, 1);
*/
}
public static void Colourize(NSView control, Color color, Action drawAction)
{
var size = control.Frame.Size;
if (size.Width <= 0 || size.Height <= 0)
return;
var image = new NSImage(size);
image.LockFocusFlipped(!control.IsFlipped);
drawAction();
image.UnlockFocus();
var ciImage = CIImage.FromCGImage(image.CGImage);
CGSize realSize;
if (control.RespondsToSelector(selConvertSizeToBacking))
realSize = control.ConvertSizeToBacking(size);
else
realSize = control.ConvertSizeToBase(size);
var filter2 = new CIColorControls();
filter2.SetDefaults();
filter2.Image = ciImage;
filter2.Saturation = 0.0f;
ciImage = (CIImage)filter2.ValueForKey(CIOutputImage);
var filter3 = new CIColorMatrix();
filter3.SetDefaults();
filter3.Image = ciImage;
filter3.RVector = new CIVector(0, color.R, 0);
filter3.GVector = new CIVector(color.G, 0, 0);
filter3.BVector = new CIVector(0, 0, color.B);
ciImage = (CIImage)filter3.ValueForKey(CIOutputImage);
// create separate context so we can force using the software renderer, which is more than fast enough for this
var ciContext = CIContext.FromContext(NSGraphicsContext.CurrentContext.GraphicsPort, new CIContextOptions { UseSoftwareRenderer = true });
ciContext.DrawImage(ciImage, new CGRect(CGPoint.Empty, size), new CGRect(CGPoint.Empty, realSize));
}