static public CGColor?CreateByMatchingToColorSpace(CGColorSpace space, CGColorRenderingIntent intent,
CGColor color, NSDictionary options)
{
var h = CGColorCreateCopyByMatchingToColorSpace(space.GetHandle(), intent, color.GetHandle(), options.GetHandle());
return(h == IntPtr.Zero ? null : new CGColor(h, owns: true));
}
static CGColor CreateByMatchingToColorSpace(CGColorSpace space, CGColorRenderingIntent intent,
CGColor color, NSDictionary options)
{
var h = CGColorCreateCopyByMatchingToColorSpace(space == null ? IntPtr.Zero : space.Handle, intent,
color == null ? IntPtr.Zero : color.Handle, options == null ? IntPtr.Zero : options.Handle);
return(h == IntPtr.Zero ? null : new CGColor(h));
}
static IntPtr Create(CGColor source, nfloat alpha)
{
if (source is null)
{
throw new ArgumentNullException(nameof(source));
}
return(CGColorCreateCopyWithAlpha(source.GetCheckedHandle(), alpha));
}
public override bool Equals(object o)
{
CGColor other = o as CGColor;
if (other == null)
{
return(false);
}
return(CGColorEqualToColor(this.handle, other.handle));
}
public void SetShadow(CGSize offset, nfloat blur, CGColor color = null)
{
if (color == null)
{
CGContextSetShadow(handle, offset, blur);
}
else
{
CGContextSetShadowWithColor(handle, offset, blur, color.handle);
}
}
public CGColor(CGColor source, nfloat alpha)
{
if (source == null)
{
throw new ArgumentNullException("source");
}
if (source.handle == IntPtr.Zero)
{
throw new ObjectDisposedException("source");
}
handle = CGColorCreateCopyWithAlpha(source.handle, alpha);
}
public void SetStrokeColor(CGColor color)
{
CGContextSetStrokeColorWithColor(handle, color == null ? IntPtr.Zero : color.handle);
}
public CGColor(CGColor source, nfloat alpha)
: base(Create(source, alpha), true)
{
}