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

namespace CPF.Mac.CoreText
{
	internal static class CTBaselineClassID
	{
		public static readonly NSString Roman;

		public static readonly NSString IdeographicCentered;

		public static readonly NSString IdeographicLow;

		public static readonly NSString IdeographicHigh;

		public static readonly NSString Hanging;

		public static readonly NSString Math;

		static CTBaselineClassID()
		{
			IntPtr intPtr = Dlfcn.dlopen("/System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreText.framework/CoreText", 0);
			if (!(intPtr == IntPtr.Zero))
			{
				try
				{
					Roman = Dlfcn.GetStringConstant(intPtr, "kCTBaselineClassRoman");
					IdeographicCentered = Dlfcn.GetStringConstant(intPtr, "kCTBaselineClassIdeographicCentered");
					IdeographicLow = Dlfcn.GetStringConstant(intPtr, "kCTBaselineClassIdeographicLow");
					IdeographicHigh = Dlfcn.GetStringConstant(intPtr, "kCTBaselineClassIdeographicHigh");
					Hanging = Dlfcn.GetStringConstant(intPtr, "kCTBaselineClassHanging");
					Math = Dlfcn.GetStringConstant(intPtr, "kCTBaselineClassMath");
				}
				finally
				{
					Dlfcn.dlclose(intPtr);
				}
			}
		}

		public static NSString ToNSString(CTBaselineClass key)
		{
			switch (key)
			{
			case CTBaselineClass.Roman:
				return Roman;
			case CTBaselineClass.IdeographicCentered:
				return IdeographicCentered;
			case CTBaselineClass.IdeographicLow:
				return IdeographicLow;
			case CTBaselineClass.IdeographicHigh:
				return IdeographicHigh;
			case CTBaselineClass.Hanging:
				return Hanging;
			case CTBaselineClass.Math:
				return Math;
			default:
				throw new ArgumentOutOfRangeException("key");
			}
		}

		public static CTBaselineClass FromHandle(IntPtr handle)
		{
			if (handle == Roman.Handle)
			{
				return CTBaselineClass.Roman;
			}
			if (handle == IdeographicCentered.Handle)
			{
				return CTBaselineClass.IdeographicCentered;
			}
			if (handle == IdeographicLow.Handle)
			{
				return CTBaselineClass.IdeographicLow;
			}
			if (handle == IdeographicHigh.Handle)
			{
				return CTBaselineClass.IdeographicHigh;
			}
			if (handle == Hanging.Handle)
			{
				return CTBaselineClass.Hanging;
			}
			if (handle == Math.Handle)
			{
				return CTBaselineClass.Math;
			}
			throw new ArgumentOutOfRangeException("handle");
		}
	}
}