lyfz_repos/铂金版源码/LYFZ.PhotoSelectSystem/其它/DrawTools2005_src/DrawTools2005/DrawTools/Tool.cs

using System;
using System.Windows.Forms;
using System.Drawing;


namespace DrawTools
{
	/// <summary>
	/// Base class for all drawing tools
	/// </summary>
	abstract class Tool
	{

        /// <summary>
        /// Left nous button is pressed
        /// </summary>
        /// <param name="drawArea"></param>
        /// <param name="e"></param>
        public virtual void OnMouseDown(DrawArea drawArea, MouseEventArgs e)
        {
        }


        /// <summary>
        /// Mouse is moved, left mouse button is pressed or none button is pressed
        /// </summary>
        /// <param name="drawArea"></param>
        /// <param name="e"></param>
        public virtual void OnMouseMove(DrawArea drawArea, MouseEventArgs e)
        {
        }


        /// <summary>
        /// Left mouse button is released
        /// </summary>
        /// <param name="drawArea"></param>
        /// <param name="e"></param>
        public virtual void OnMouseUp(DrawArea drawArea, MouseEventArgs e)
        {
        }
    }
}