using CPF.Mac.Foundation;
using CPF.Mac.ObjCRuntime;
using System;

namespace CPF.Mac.CoreText
{
	[Since(3, 2)]
	public static class CTFrameAttributeKey
	{
		public static readonly NSString Progression;

		[Since(4, 2)]
		public static readonly NSString PathFillRule;

		[Since(4, 2)]
		public static readonly NSString PathWidth;

		[Since(4, 3)]
		public static readonly NSString ClippingPaths;

		[Since(4, 3)]
		public static readonly NSString PathClippingPath;

		static CTFrameAttributeKey()
		{
			IntPtr intPtr = Dlfcn.dlopen("/System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreText.framework/CoreText", 0);
			if (!(intPtr == IntPtr.Zero))
			{
				try
				{
					Progression = Dlfcn.GetStringConstant(intPtr, "kCTFrameProgressionAttributeName");
					PathFillRule = Dlfcn.GetStringConstant(intPtr, "kCTFramePathFillRuleAttributeName");
					PathWidth = Dlfcn.GetStringConstant(intPtr, "kCTFramePathWidthAttributeName");
					ClippingPaths = Dlfcn.GetStringConstant(intPtr, "kCTFrameClippingPathsAttributeName");
					PathClippingPath = Dlfcn.GetStringConstant(intPtr, "kCTFramePathClippingPathAttributeName");
				}
				finally
				{
					Dlfcn.dlclose(intPtr);
				}
			}
		}
	}
}