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

/*************************************************************************************************
*****File Name : PENEXT.CS, Version : 1.0, 8 November 2004**************************************** 
*******************Author : Siva Kovvuri*********************************************************
**This class  represents the functionality of  a pen object. This class extends the pen class   **
**from the System.Drawing. It encapsulates functionality for defining the color, width for      **
**the pen object. It includes methods for defining the default pen object with color black      **
**and pen object with any color.                                                                **
**The FontData structure sets the name, type and size of the fonts.                             **
**                                                                                              **
*************************************************************************************************/

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

using System.Windows.Forms;
using System.Windows.Forms.Design;




//Namespace BaseDef, include BrushExt, PenExt, FontData
namespace GraEditor.BaseDef
{

/// <summary>
/// //FontData structure, set the Font Name, Size and Font style
/// </summary>
	[Serializable]
	public struct  FontData 
	{
		public FontData(Font font)
		{
			this.Name = font.Name;  //Name
			this.Size = font.SizeInPoints;//Size;
			this.Style = font.Style;//Syle
			
		}

		public	string			Name;
		public	float			Size;
		public	FontStyle		Style;

		public  bool IsEmpty() //No font 
		{
			return Name.Length == 0 || Size <= 0;
		}

	}


	//Define our own Pen class, use it to store the color, width, dash style.
	public class PenExt 
	{   

      /// <summary>
      /// construct a new pen 
      /// </summary>
		static PenExt()
		{
			_penObj = new Pen(Color.Black,1);
		}

		public PenExt()
		{
         this.color = Color.Black;//default color is black
		}

		 //set color
		public PenExt(Color c)
		{
			this.color = c;
		}

		//set color, width and dash style
		public PenExt(Color c,int w,DashStyle s) 
			:this(c)
		{
			this.width = w;
			this.dashStyle = s;
		}

	
		private  static  Pen  _penObj; //static Pen variable
		public  Pen   Pen              //send the color, width, dash style of PenExt to pen variable
		{
			get 
			{
				_penObj.Color = this.Color; //send color to pen variable
				_penObj.Width = this.Width;//send width to pen variable
				_penObj.DashStyle = this.dashStyle;//send dash style to pen variable

				return _penObj;
			}
			set
			{
				if(value == null)
					return;

				color = value.Color; // set the color of PenExt with Pen's color
				width = value.Width;// set the width of PenExt with Pen's width
				dashStyle = value.DashStyle;//// set the dash style of PenExt with Pen's style
			}

		}

		
		protected Color color; 

		//Color property of PenExt
		public   Color Color
		{
			get { return color; }
			set                  
			{
				if( value == color) 
					return;

				color = value; 
			}
		}
		
		protected float  width;

		// width property of PenExt
		public   float  Width
		{
			get { return width; }
			set                  
			{
				if( value == width)
					return;

				width = value;
			}
		}

		protected DashStyle  dashStyle;

		//dash styple property of PenExt
		public  DashStyle  DashStyle
		{
			get { return dashStyle; }
			set                      
			{
				if(value == dashStyle)
					return;

				if(dashStyle == DashStyle.Custom)
					return;

				dashStyle = value;
			}
		}

	}


}