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

namespace CPF.ReoGrid.Chart
{
	public class ChartLegendItem : DrawingObject
	{
		public virtual Rect SymbolBounds
		{
			get
			{
				return this.symbolBounds;
			}
			set
			{
				this.symbolBounds = value;
			}
		}

		public virtual Rect LabelBounds
		{
			get
			{
				return this.labelBounds;
			}
			set
			{
				this.labelBounds = value;
			}
		}

		public virtual void SetSymbolLocation(float x, float y)
		{
			this.symbolBounds.X = x;
			this.symbolBounds.Y = y;
		}

		public virtual void SetLabelLocation(float x, float y)
		{
			this.labelBounds.X = x;
			this.labelBounds.Y = y;
		}

		public virtual ChartLegend ChartLegend { get; protected set; }

		public ChartLegendItem(ChartLegend chartLegend, int legendIndex)
		{
			this.ChartLegend = chartLegend;
			this.LegendIndex = legendIndex;
		}

		public virtual int LegendIndex { get; set; }

		protected override void OnPaint(RDrawingContext dc)
		{
			bool flag = this.symbolBounds.Width > 0f && this.symbolBounds.Height > 0f;
			if (flag)
			{
				this.OnPaintSymbol(dc);
			}
			bool flag2 = this.labelBounds.Width > 0f && this.labelBounds.Height > 0f;
			if (flag2)
			{
				this.OnPaintLabel(dc);
			}
		}

		public virtual void OnPaintSymbol(RDrawingContext dc)
		{
			IGraphics graphics = dc.Graphics;
			bool flag = this.ChartLegend != null;
			if (flag)
			{
				ChartLegend chartLegend = this.ChartLegend;
				bool flag2 = chartLegend.Chart != null;
				if (flag2)
				{
					DataSerialStyleCollection dataSerialStyles = chartLegend.Chart.DataSerialStyles;
					bool flag3 = dataSerialStyles != null;
					if (flag3)
					{
						IDataSerialStyle dataSerialStyle = dataSerialStyles[this.LegendIndex];
						graphics.DrawAndFillRectangle(this.symbolBounds, dataSerialStyle.LineColor, dataSerialStyle.FillColor);
					}
				}
			}
		}

		public virtual void OnPaintLabel(RDrawingContext dc)
		{
			bool flag = this.ChartLegend != null;
			if (flag)
			{
				ChartLegend chartLegend = this.ChartLegend;
				bool flag2 = chartLegend.Chart != null && chartLegend.Chart.DataSource != null;
				if (flag2)
				{
					WorksheetChartDataSource dataSource = chartLegend.Chart.DataSource;
					string label = dataSource[this.LegendIndex].Label;
					bool flag3 = !string.IsNullOrEmpty(label);
					if (flag3)
					{
						dc.Graphics.DrawText(label, this.FontName, this.FontSize, base.ForeColor, this.labelBounds, ReoGridHorAlign.Left, ReoGridVerAlign.Middle);
					}
				}
			}
		}

		private Rect symbolBounds;

		private Rect labelBounds;
	}
}