using System;
using System.Collections.Generic;
using CPF.Drawing;
using CPF.ReoGrid.Views;

namespace CPF.ReoGrid
{
	internal static class GenericExtends
	{
		public static bool Has(this PlainStyleFlag flag, PlainStyleFlag target)
		{
			return (flag & target) == target;
		}

		public static bool HasAny(this PlainStyleFlag flag, PlainStyleFlag target)
		{
			return (flag & target) > PlainStyleFlag.None;
		}

		public static void Set(this PlainStyleFlag flag, PlainStyleFlag target)
		{
			flag |= target;
		}

		public static void Unset(this PlainStyleFlag flag, PlainStyleFlag target)
		{
			flag &= ~target;
		}

		public static bool Has(this BorderPositions pos, BorderPositions target)
		{
			return (pos & target) == target;
		}

		public static bool HasAny(this BorderPositions pos, BorderPositions target)
		{
			return (pos & target) > BorderPositions.None;
		}

		internal static bool Has(this ViewTypes pos, ViewTypes target)
		{
			return (pos & target) == target;
		}

		internal static bool HasAny(this ViewTypes pos, ViewTypes target)
		{
			return (pos & target) > ViewTypes.None;
		}

		public static bool Has(this WorksheetSettings settings, WorksheetSettings target)
		{
			return (settings & target) == target;
		}

		public static bool HasAny(this WorksheetSettings settings, WorksheetSettings target)
		{
			return (settings & target) > WorksheetSettings.None;
		}

		public static WorksheetSettings Add(this WorksheetSettings settings, WorksheetSettings target)
		{
			return settings |= target;
		}

		public static WorksheetSettings Remove(this WorksheetSettings settings, WorksheetSettings target)
		{
			return settings &= ~target;
		}

		public static bool Has(this WorkbookSettings settings, WorkbookSettings target)
		{
			return (settings & target) == target;
		}

		public static bool HasAny(this WorkbookSettings settings, WorkbookSettings target)
		{
			return (settings & target) > WorkbookSettings.None;
		}

		public static WorkbookSettings Add(this WorkbookSettings settings, WorkbookSettings target)
		{
			return settings |= target;
		}

		public static WorkbookSettings Remove(this WorkbookSettings settings, WorkbookSettings target)
		{
			return settings &= ~target;
		}

		public static bool DictionaryEquals<TKey, TValue>(this IDictionary<TKey, TValue> first, IDictionary<TKey, TValue> second)
		{
			bool flag = first == second;
			bool result;
			if (flag)
			{
				result = true;
			}
			else
			{
				bool flag2 = first == null || second == null;
				if (flag2)
				{
					result = false;
				}
				else
				{
					bool flag3 = first.Count != second.Count;
					if (flag3)
					{
						result = false;
					}
					else
					{
						EqualityComparer<TValue> @default = EqualityComparer<TValue>.Default;
						foreach (KeyValuePair<TKey, TValue> keyValuePair in first)
						{
							TValue y;
							bool flag4 = !second.TryGetValue(keyValuePair.Key, out y);
							if (flag4)
							{
								return false;
							}
							bool flag5 = !@default.Equals(keyValuePair.Value, y);
							if (flag5)
							{
								return false;
							}
						}
						result = true;
					}
				}
			}
			return result;
		}

		internal static bool Empty(this Point p)
		{
			return p.X == 0f && p.Y == 0f;
		}
	}
}