using System;
using CPF.Drawing;
using CPF.ReoGrid.Graphics;
using CPF.ReoGrid.Rendering;

namespace CPF.ReoGrid.Chart
{
	public class AxisCategoryLabelView : AxisInfoView
	{
		public AxisCategoryLabelView(AxisChart chart, AxisTypes axisType = AxisTypes.Primary, AxisOrientation orientation = AxisOrientation.Vertical) : base(chart, axisType)
		{
			this.orientation = orientation;
		}

		protected override void OnPaint(RDrawingContext dc)
		{
			base.OnPaint(dc);
			bool flag = base.Chart == null;
			if (!flag)
			{
				AxisDataInfo axisDataInfo = (base.AxisType == AxisTypes.Primary) ? base.Chart.PrimaryAxisInfo : base.Chart.SecondaryAxisInfo;
				bool flag2 = axisDataInfo == null;
				if (!flag2)
				{
					IGraphics graphics = dc.Graphics;
					WorksheetChartDataSource dataSource = base.Chart.DataSource;
					Rect clientBounds = this.ClientBounds;
					float num = (float)((double)(this.FontSize * PlatformUtility.GetDPI()) / 72.0) + 4f;
					double num2 = axisDataInfo.Minimum;
					bool flag3 = this.orientation == AxisOrientation.Vertical;
					if (flag3)
					{
						float num3 = (clientBounds.Height - num) / (float)axisDataInfo.Levels;
						float num4 = 0f;
						float num5 = clientBounds.Bottom - num;
						float num6 = clientBounds.Width;
						Rect rect = new Rect(ref num4, ref num5, ref num6, ref num);
						for (int i = 0; i <= axisDataInfo.Levels; i++)
						{
							graphics.DrawText(Math.Round(num2, Math.Abs(axisDataInfo.Scaler)).ToString(), this.FontName, this.FontSize, base.ForeColor, rect, ReoGridHorAlign.Right, ReoGridVerAlign.Middle);
							rect.Y -= num3;
							num2 += Math.Round(axisDataInfo.LargeStride, Math.Abs(axisDataInfo.Scaler));
						}
					}
					else
					{
						bool flag4 = this.orientation == AxisOrientation.Horizontal;
						if (flag4)
						{
							float num7 = clientBounds.Width / (float)axisDataInfo.Levels;
							float num4 = clientBounds.Left - num7 / 2f;
							float num5 = clientBounds.Top;
							float num6 = clientBounds.Height;
							Rect rect2 = new Rect(ref num4, ref num5, ref num7, ref num6);
							for (int j = 0; j <= axisDataInfo.Levels; j++)
							{
								graphics.DrawText(Math.Round(num2, Math.Abs(axisDataInfo.Scaler)).ToString(), this.FontName, this.FontSize, base.ForeColor, rect2, ReoGridHorAlign.Center, ReoGridVerAlign.Top);
								rect2.X += num7;
								num2 += Math.Round(axisDataInfo.LargeStride, Math.Abs(axisDataInfo.Scaler));
							}
						}
					}
				}
			}
		}

		private AxisOrientation orientation;
	}
}