using System;

namespace CPF.ReoGrid.Core
{
	internal class RangeModifyHelper
	{
		internal static void ProcessAfterInsertRow(int row, int count, IRowRange range)
		{
			bool flag = range.Row > row;
			if (flag)
			{
				range.Row += count;
			}
			else
			{
				bool flag2 = range.EndRow > row;
				if (flag2)
				{
					range.Rows += count;
				}
			}
		}

		internal static void ProcessAfterInsertColumn(int col, int count, IColumnRange range)
		{
			bool flag = range.Col > col;
			if (flag)
			{
				range.Col += count;
			}
			else
			{
				bool flag2 = range.EndCol > col;
				if (flag2)
				{
					range.Cols += count;
				}
			}
		}

		internal static void ProcessAfterDeleteRow(int row, int count, int endRow, IRowRange rowRange, Action onChange, Action onRemove)
		{
			bool flag = endRow - 1 < rowRange.Row;
			if (flag)
			{
				rowRange.Row -= count;
			}
			else
			{
				bool flag2 = row < rowRange.Row;
				if (flag2)
				{
					int num = endRow - rowRange.Row;
					bool flag3 = num >= rowRange.Rows;
					if (flag3)
					{
						onRemove();
					}
					else
					{
						onChange();
						rowRange.Row -= count - num;
						rowRange.Rows -= num;
					}
				}
				else
				{
					bool flag4 = row <= rowRange.EndRow;
					if (flag4)
					{
						int num2 = Math.Min(rowRange.EndRow - row + 1, count);
						bool flag5 = num2 >= rowRange.Rows;
						if (flag5)
						{
							onRemove();
						}
						else
						{
							onChange();
							rowRange.Rows -= num2;
						}
					}
				}
			}
		}

		internal static void ProcessAfterDeleteColumn(int col, int count, int endCol, IColumnRange colRange, Action onChange, Action onRemove)
		{
			bool flag = endCol - 1 < colRange.Col;
			if (flag)
			{
				colRange.Col -= count;
			}
			else
			{
				bool flag2 = col < colRange.Col;
				if (flag2)
				{
					int num = endCol - colRange.Col;
					bool flag3 = num >= colRange.Cols;
					if (flag3)
					{
						onRemove();
					}
					else
					{
						onChange();
						colRange.Col -= count - num;
						colRange.Cols -= num;
					}
				}
				else
				{
					bool flag4 = col <= colRange.EndCol;
					if (flag4)
					{
						int num2 = Math.Min(colRange.EndCol - col + 1, count);
						bool flag5 = num2 >= colRange.Cols;
						if (flag5)
						{
							onRemove();
						}
						else
						{
							onChange();
							colRange.Cols -= num2;
						}
					}
				}
			}
		}
	}
}