绘图程序

开发平台：

Java

LineCmd.java：源码内容

							package cn.edu.nju.software.grapheditor.cmd;
import java.awt.Point;
import cn.edu.nju.software.grapheditor.Drawing;
import cn.edu.nju.software.grapheditor.shape.Segment;
public class LineCmd extends Command{
   Segment s;
   public void executePress(Point p,Drawing dwg){
	   s=new Segment(dwg.currentColor);
	   s.startPoint =p;
		s.endPoint =p;
		dwg.a.add(s);
   }
   public void executeDrag(Point p, Drawing dwg) {
		s.endPoint =p;
	}
}

						