using System;
using System.Diagnostics;
using CPF.Drawing;
using CPF.ReoGrid.Events;
using CPF.ReoGrid.Graphics;
using CPF.ReoGrid.Interaction;
using CPF.ReoGrid.Rendering;
using CPF.ReoGrid.Utility;

namespace CPF.ReoGrid.CellTypes
{
	[Serializable]
	public class ButtonCell : CellBody
	{
		public ButtonCell()
		{
		}

		public ButtonCell(string defaultText)
		{
			this.defaultText = defaultText;
		}

		public override void OnSetup(Cell cell)
		{
			bool flag = cell != null;
			if (flag)
			{
				bool flag2 = cell.Worksheet != null;
				if (flag2)
				{
					cell.Worksheet.SetRangeStyles(cell.PositionAsRange, new WorksheetRangeStyle
					{
						Flag = PlainStyleFlag.AlignAll,
						HAlign = ReoGridHorAlign.Center,
						VAlign = ReoGridVerAlign.Middle
					});
				}
				bool flag3 = !string.IsNullOrEmpty(this.defaultText);
				if (flag3)
				{
					cell.Data = this.defaultText;
				}
			}
		}

		public override void OnPaint(CellDrawingContext dc)
		{
			bool flag = base.Cell != null;
			if (flag)
			{
				this.DrawButton(dc);
			}
			dc.DrawCellText();
		}

		protected virtual void DrawButton(CellDrawingContext dc)
		{
			IGraphics graphics = dc.Graphics;
			Rect bounds = this.Bounds;
			graphics.DrawRectangle(bounds, ColorUtility.ChangeColorBrightness(StaticResources.SystemColor_ControlDark, -0.3f));
			float num = bounds.X + 1f;
			float num2 = bounds.Y + 1f;
			float num3 = bounds.Width - 2f;
			float num4 = bounds.Height - 2f;
			Rect rect = new Rect(ref num, ref num2, ref num3, ref num4);
			graphics.FillRectangle(rect, StaticResources.SystemColor_Control);
			bool isPressed = this.IsPressed;
			if (isPressed)
			{
				num = bounds.X + 1f;
				num2 = bounds.Y + 1f;
				num3 = bounds.Width - 2f;
				num4 = bounds.Height - 2f;
				Rect rect2 = new Rect(ref num, ref num2, ref num3, ref num4);
				graphics.DrawRectangle(rect2, ColorUtility.ChangeColorBrightness(StaticResources.SystemColor_ControlDark, -0.3f));
			}
		}

		public override bool OnMouseDown(CellMouseEventArgs e)
		{
			Rect bounds = this.Bounds;
			Point relativePosition = e.RelativePosition;
			bool flag = bounds.Contains(relativePosition);
			bool result;
			if (flag)
			{
				this.IsPressed = true;
				result = true;
			}
			else
			{
				result = false;
			}
			return result;
		}

		public override bool OnMouseUp(CellMouseEventArgs e)
		{
			bool isPressed = this.IsPressed;
			bool result;
			if (isPressed)
			{
				Rect bounds = this.Bounds;
				Point relativePosition = e.RelativePosition;
				bool flag = bounds.Contains(relativePosition);
				if (flag)
				{
					this.PerformClick();
				}
				this.IsPressed = false;
				result = true;
			}
			else
			{
				result = false;
			}
			return result;
		}

		public override bool OnKeyDown(KeyCode keyCode)
		{
			bool flag = keyCode == KeyCode.Space;
			bool result;
			if (flag)
			{
				this.IsPressed = true;
				result = true;
			}
			else
			{
				result = false;
			}
			return result;
		}

		public override bool OnKeyUp(KeyCode keyCode)
		{
			bool flag = keyCode == KeyCode.Space && this.IsPressed;
			bool result;
			if (flag)
			{
				this.IsPressed = false;
				this.PerformClick();
				result = true;
			}
			else
			{
				result = false;
			}
			return result;
		}

		public override bool OnStartEdit()
		{
			return false;
		}

		public bool IsPressed { get; set; }

		public virtual void PerformClick()
		{
			EventHandler click = this.Click;
			if (click != null)
			{
				click(this, null);
			}
		}

		//[DebuggerBrowsable(DebuggerBrowsableState.Never)]
		public event EventHandler Click;

		public override ICellBody Clone()
		{
			return new ButtonCell(base.Cell.DisplayText);
		}

		private string defaultText;
	}
}