ViewportPicbox.cs

/*
 * Created by SharpDevelop.
 * User: NCDyson
 * Date: 11/4/2017
 * Time: 4:45 AM
 * 
 * To change this template use Tools | Options | Coding | Edit Standard Headers.
 */
using System;

namespace StudioCCS
{
using System;
using System.Drawing;
using System.Windows.Forms;

	class ViewportPicbox : PictureBox 
	{
	  	public ViewportPicbox()
	  	{
	  		this.SetStyle(ControlStyles.Selectable, true);
	    	this.TabStop = true;
	  	}
	  	
	  	protected override void OnMouseDown(MouseEventArgs e) 
	  	{
	    	this.Focus();
	    	base.OnMouseDown(e);
	  	}
	  	
	  	protected override void OnEnter(EventArgs e) 
	  	{
	    	this.Invalidate();
	    	base.OnEnter(e);
	  	}
	  	
	  	protected override void OnLeave(EventArgs e) 
	  	{
	    	this.Invalidate();
	    	base.OnLeave(e);
	  	}
	  
	  	protected override void OnPaint(PaintEventArgs pe) 
	  	{
	    	base.OnPaint(pe);	
		    if (this.Focused) 
		    {
		      var rc = this.ClientRectangle;
		      rc.Inflate(-2, -2);
		      ControlPaint.DrawFocusRectangle(pe.Graphics, rc);
		    }
	  	}
	}
}