brush.java

画图程序

package LYD.Draw;

import java.awt.Graphics;
import java.awt.Cursor;
import java.awt.event.MouseEvent;
import java.awt.Graphics2D;
import java.awt.BasicStroke;
import java.awt.Color;

public class Brush implements IBasicBrush
{
	protected Graphics2D g;
	protected BasicStroke _BasicStroke=new BasicStroke(1);
	protected Color c=Color.BLACK;

	public void setWidth(float width)
	{
		if(width>0&&width!=_BasicStroke.getLineWidth())
		{	
			this._BasicStroke=new BasicStroke(width);
		}
	}
	
	public float getWidth()
	{
		return this._BasicStroke.getLineWidth();
	}
	
	public void setColor(Color color)
	{
		c=color;
	}
	
	public Color getColor()
	{
		return c;
	}
	
	public Brush(){}
	
	public Brush(Graphics gg)
	{
		this.g=(Graphics2D)gg;
		g.setStroke(this._BasicStroke);
	}
	
	public void setGraphics(Graphics gg)
	{
		this.g=(Graphics2D)gg;
		g.setStroke(this._BasicStroke);
	}
	
	public void paintLine(int x1,int y1,int x2,int y2)
	{
		g.setColor(c);
		g.setStroke(this._BasicStroke);
		g.drawLine(x1,y1,x2,y2);
	}
	
	public void paintRectangle(int x,int y,int w,int h)
	{
		g.setColor(c);
		g.setStroke(this._BasicStroke);
		g.drawLine(x,y,x+w,y);
		g.drawLine(x+w,y,x+w,y+h);
		g.drawLine(x+w,y+h,x,y+h);
		g.drawLine(x,y+h,x,y);
	}
	
	public void paintCircle(int x,int y,int r)
	{
		g.setColor(c);
		g.setStroke(this._BasicStroke);
		g.drawOval(x,y,r,r);
	}
	
	public void paintOval(int x,int y,int width,int weight)
	{
		g.setColor(c);
		g.setStroke(this._BasicStroke);
		g.drawOval(x,y,width,weight);
	}
}