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)); }