pencil.java

画图程序

package LYD.Draw;

import java.awt.Graphics;
import java.awt.Cursor;
import java.awt.event.MouseEvent;
import java.awt.Color;
import java.awt.Point;
import java.util.ArrayList;

public class Pencil implements ITypeDrawCommand
{
	protected ArrayList altPoint=new ArrayList();
	
	protected int brushType=0;
	protected Color _color=Color.BLACK;
	
	protected IBasicBrush _IBasicBrush=new Brush();
	
	public Pencil(){}
	
	public Pencil(Graphics g){_IBasicBrush.setGraphics(g);}
	
	public Pencil(int _x1,int _y1,int _x2,int _y2,Color c,IBasicBrush i)
	{
		addPoint(_x1,_y1);
		_color=c;
		_IBasicBrush.setColor(i.getColor());
		_IBasicBrush.setWidth(i.getWidth());
	}
	
	public void addPoint(int x,int y){altPoint.add(new Point(x,y));}
	
	public void ReDo(Graphics g)
	{
		_IBasicBrush.setGraphics(g);
		for(int i=1;i<altPoint.size();i++)
		{
			Point temp1=(Point)altPoint.get(i-1);
			Point temp2=(Point)altPoint.get(i);
			_IBasicBrush.paintLine((int)temp1.getX(),(int)temp1.getY(),(int)temp2.getX(),(int)temp2.getY());
		}
		
	}
	
	public void UnDo(){}
	
	public void setWidth(int w){_IBasicBrush.setWidth(w);}

	public Cursor getCursor(){return new Cursor(Cursor.DEFAULT_CURSOR);}
	
	public void setColor(Color color){_IBasicBrush.setColor(color);}
	
	public Color getColor(){return _IBasicBrush.getColor();}
	
	public void setGraphics(Graphics g){_IBasicBrush.setGraphics(g);}
	
	public void setType(int type)
	{
		if(type==0)
			this._IBasicBrush=new Brush();	
	}
	
	
	public void mouseReleased(MouseEvent e)
	{
		Pencil p=(Pencil)TypeDrawController.peek();
		p.addPoint(e.getX(),e.getY());
	}
	
	public void mousePressed(MouseEvent e)
	{
		TypeDrawController.addToTop(new Pencil(e.getX(),e.getY(),0,0,Draw.foreColor,_IBasicBrush));
	}
	
	public void mouseExited(MouseEvent e)
	{
	}
	
	public void mouseEntered(MouseEvent e)
	{
	}
	
	public void mouseClicked(MouseEvent e)
	{
	}
	
	public void mouseMoved(MouseEvent e)
	{
	}
	
	public void mouseDragged(MouseEvent e)
	{
		Pencil p=(Pencil)TypeDrawController.peek();
		p.addPoint(e.getX(),e.getY());
	}
	
}