作业四

Posted 2020-08-10 L1019

简单的画图软件

 

 

 

 

 

 

 

主要代码

package com.listener;

import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Paint;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.util.ArrayList;
import java.util.concurrent.Callable;
import java.util.concurrent.FutureTask;

import javax.swing.JButton;
import javax.swing.JPanel;

import com.board.Board;

public class LineListener implements MouseListener,ActionListener,MouseMotionListener{
	Board board;
	JPanel zone;
	Graphics g;
	Graphics2D g2;
	Paint paint;
	public final int LINE=1;
	public final int RECT=2;
	public final int CIRCLE=3;
	public int fig=0;
	ArrayList listx=new ArrayList();
	ArrayList listy=new ArrayList();
	int x1=0;
	int x2=0;
	int y1=0;
	int y2=0;
	
	
	@Override
	public void mouseClicked(MouseEvent e) {
		// TODO 自动生成的方法存根
		
		switch(fig){
			case LINE:drawline(e) ;
            case RECT: drawrect(e);
			case CIRCLE: drawcircle(e);

		}
		
		
	}
	/*
	 * draw circle
	 */
	public void drawcircle(MouseEvent e){
		getzone(e);
		if(g==null){
			g=zone.getGraphics();
		}
		g.drawOval(e.getX(), e.getY(), 40, 40);
		
		zone.paintComponents(g);
		
	}

	/*
	 * draw rect
	 */
	public void drawrect(MouseEvent e){
		getzone(e);
		if(g==null){
			g=zone.getGraphics();
		}
		g.drawRect(e.getX(), e.getY(), 40, 40);
		zone.paintComponents(g);
		
	}

	/*
	 * draw line
	 */
	public void drawline(MouseEvent e){
		getzone(e);
		if(g==null){
			g=zone.getGraphics();
		}
		
		if(x1==0&&y1==0){
			//g.drawLine(x1, y1, x1+20, y1+10);
			x2=e.getX();
			y2=e.getY();
			g.drawLine(x2, y2, x2, y2);
			listx.add(x2);
			listy.add(y2);
			x1=x2;
			y1=y2;
		}
		else{
			x2=e.getX();
			y2=e.getY();
			g.drawLine(x1, y1, x2, y2);
			listx.add(x2);
			listy.add(y2);
			x1=x2;
			y1=y2;
		}
		
		zone.paintComponents(g);//show line
		
		System.out.println(x1+"/n"+y1);
	}
	
	
	/*
	 * get zone to draw
	 * 
	 */
	public void getzone(MouseEvent e){
		if(zone==null){
			zone=(JPanel) e.getSource();
		}
		
	}
	@Override
	public void mouseEntered(MouseEvent arg0) {
		// TODO 自动生成的方法存根
	}

	@Override
	public void mouseExited(MouseEvent arg0) {
		// TODO 自动生成的方法存根
	}

	@Override
	public void mousePressed(MouseEvent arg0) {
		// TODO 自动生成的方法存根
	}

	@Override
	public void mouseReleased(MouseEvent arg0) {
		// TODO 自动生成的方法存根
	}

	@Override
	public void actionPerformed(ActionEvent e) {
		// TODO 自动生成的方法存根
		JButton but=(JButton) e.getSource();
		
		if(but.getText()=="线    "){
			fig=LINE;
			
		}
		else if(but.getText()=="矩形"){
			fig=RECT;
			
		}
		else if(but.getText()=="圆形"){
			fig=CIRCLE;
			
		}
	}
	@Override
	public void mouseDragged(MouseEvent e) {
		// TODO 自动生成的方法存根
		
		drawline(e);
		
	}
	
	@Override
	public void mouseMoved(MouseEvent arg0) {
		// TODO 自动生成的方法存根

	}
	
	
}

　　

 

心得

1在团队合作中要注意交流，在此次合作总由于没有很好的交流，导致花费时间较多

2由于能力有限，做的不很精美

合照