lyfz_repos/铂金版源码/LYFZ.PhotoSelectSystem/其它/C#多功能画图板源码/code/BrushExt.cs

///
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.ComponentModel;
using System.Drawing.Design;
using System.Collections;


// Namespace BaseDef, include BrushExt, PenExt, FontData
namespace GraEditor.BaseDef
{
	
	/// <summary>
	/// Define our own Brush class, use it to store the color
	/// </summary>
	public class BrushExt
	{
		
		static BrushExt()
		{
			solidBrush = new SolidBrush(Color.Transparent);//construct a new brush
		}

		public BrushExt()
		{
			this.Color = Color.DarkBlue;
		}

		public BrushExt(Color color)//set color
			: this()
		{
			this.Color = color;

		}

		private  static SolidBrush  solidBrush;// static SolidBrush variable
		public  Brush  Brush                   //send the color of BrushExt to Solidbrush variable
		{
			get 
			{
				solidBrush.Color = this.Color;//send color to brush variable
				return solidBrush;
			} 
			set                              // set the color of BrushExt with Brush's color
			{
				SolidBrush b = value as SolidBrush; //Income value will change to SolidBrush type
				if(b == null)
					return;
				this.Color = b.Color;
			}
		}

		
		protected Color color;//color property of BrushExt
		public  Color Color
		{
			get { return color; }
			set                  
			{
				//if( value == this.color)
				//	return;

				this.color = value;
				//solidBrush.Color = this.color;

				
			}
		}


	}


}