drawnrectangle.java

使用java application 的共享白板系统

import java.awt.*;
import java.io.Serializable;

public class DrawnRectangle extends DrawnShape implements Serializable{
    
        static final long serialVersionUID =8706090001533630663L;

	public DrawnRectangle(Color color, int x, int y) {
		super(color, x, y, "draw rectangle");
	}
	
	protected DrawnRectangle(Color color, int x, int y, String text) {
		super(color, x, y, text);
	}

	public void draw(Graphics g) {
		int width = x2 > x1 ? x2 - x1 : x1 - x2;
		int height = y2 > y1 ? y2 - y1 : y1 - y2;

		g.setColor(color);
		g.drawRect(Math.min(x1, x2), Math.min(y1, y2), width, height);
	}
}