java画板源代码

addMouseListener(this);
addMouseMotionListener(this);
JPanel mp=new JPanel();
mp.add(jb1);
mp.add(jb2);
mp.add(jb3);
this.add(jb1);
jb1.addActionListener(this);
this.add(jb2);
jb2.addActionListener(this);
this.add(jb3);
jb3.addActionListener(this);
g2d.draw(ellipse);
break;
case 3:
Rectangle2D rect(p1.getX(),p1.getY(),Math.abs(p1.getX()-p2.getX()),Math.abs(p1.getY()-p2.getY()));
break;
default:
}
}
}
}
public void actionPerformed(ActionEvent e)
{
// TODO Auto-generated method stub
if(e.getSource()==jb1)
{
private int tool;
public int getTool() {
return tool;
}
public void setTool(int tool) {
this.tool = tool;
}
public int getX() {
return x;
import java.awt.*;
import java.awt.color.ColorSpace;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
if(p1.getTool()==p2.getTool())
{
switch (p1.getTool())
{
case 0:
line=new Line2D.Double(p1.getX(),p1.getY(), p2.getX(), p2.getY());
import java.util.Vector;
import javax.swing.*;
public class PaintBoard
{
public static void main(String[] args)
{
new Panels();
}
}
class Point implements Serializable
g2d.draw(line);
break;
case 1:
line=new Line2D.Double(p1.getX(), p1.getY(), p2.getX(), p2.getY());
g2d.draw(line);
for(int i=0;i<paintVector.size()-1;i++)
{
p1=(Point)paintVector.elementAt(i);
p2=(Point)paintVector.elementAt(i+1);
g2d.setColor(p1.getColor());
this.add(jb4);
jb4.addActionListener(this);
this.add(jb5);
jb5.addActionListener(this);
this.add(jb6);
jb6.addActionListener(this);
Vector paintVector=new Vector();
FileDialog OpenPic,SavePic;
FileOutputStream Outpic;
FileInputStream Inpic;
ObjectInputStream In;
ObjectOutputStream Out;
this.setLocation(400, 200);
this.setVisible(true);
this.setResizable(true);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mp.add(jb4);
mp.add(jb5);
mp.add(jb6);
mp.add(jb7);
mp.add(jb8);
mp.add(jb9);
this.add(mp,BorderLayout.NORTH);
this.setSize(650, 500);
{
this.x=a;
this.y=b;
this.color=color;
this.tool=t;
}
}
class Panels extends JFrame implements MouseListener,MouseMotionListener,ActionListener,ItemListener
this.add(jb7);
jb7.addActionListener(this);
jb8=new JButton("打开");
jb8.addActionListener(this);
jb9=new JButton("保存");
jb9.addActionListener(this);
return color;
}
public void setColor(Color color) {
this.color = color;
}
//设置工具选项
private int x,y;
private Color color;
public Point(int a,int b,Color c,int t)
{
painttool=0;
}
if(e.getSource()==jb2)
{
painttool=1;
}
if(e.getSource()==jb3)
{
painttool=2;
}
if(e.getSource()==jb4)
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}
public Color getColor() {
jb2=new JButton("直线");
jb3=new JButton ("圆");
jb4=new JButton("矩形");
jb5=new JButton("橡皮");
jb6=new JButton("清除");
jb7=new JButton("调色板");
import java.awt.geom.Ellipse2D;
import java.awt.geom.Line2D;
import java.awt.geom.Rectangle2D;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
public Panels()
{
OpenPic=new FileDialog(this, "打开图片", FileDialog.LOAD);
SavePic=new FileDialog(this,"保存图片", FileDialog.SAVE);
jb1=new JButton("画笔");
import java.awt.event.ItemListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
{
painttool=3;
}
if(e.getSource()==jb5)
{
painttool=4;
}
if(e.getSource()==jb6)
{
painttool=5;
paintVector.removeAllElements();
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.nio.ByteOrder;
repaint();
}
if(e.getSource()==jb7)