JAVA截屏程序(第三版)

呵呵,昨天也看到朋友的留言,又增加了一些功能,

1,增加了一个把截到的图片复制到系统的剪帖板,这样一来就可以直接粘帖到word,photoshop,画图等程序里面了

2,增加了每截一张图片都会新开一个tab来放它,并且tab里面各自有各自的操作方法.

点击下载源文件和可执行JAR文件

/*
 * CaptureScreen.java
 *
 * Created on 2007年8月30日, 下午12:46
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package hadeslee.swing;

/**
 *
 * @author lbf
 */
import java.awt.*;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import javax.imageio.*;
import java.awt.image.*;

public class CaptureScreen extends JFrame implements ActionListener{
    private JButton start,cancel;
    private JPanel c;
    private BufferedImage get;
    private JTabbedPane jtp;//一个放置很多份图片
    private int index;//一个一直会递增的索引,用于标认图片
    private JRadioButton java,system;//JAVA界面,系统界面
    /** Creates a new instance of CaptureScreen */
    public CaptureScreen() {
        super("屏幕截取软件(第三版)");
        try{
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        }catch(Exception exe){
            exe.printStackTrace();
        }
        initWindow();
        initOther();
    }
    private void initOther(){
        jtp=new JTabbedPane(JTabbedPane.TOP,JTabbedPane.SCROLL_TAB_LAYOUT);
    }
    private void initWindow(){
        start=new JButton("开始截取");
        cancel=new JButton("退出");
        start.addActionListener(this);
        cancel.addActionListener(this);
        JPanel buttonJP=new JPanel();
        c=new JPanel(new BorderLayout());
        JLabel jl=new JLabel("屏幕截取",JLabel.CENTER);
        JLabel jl1=new JLabel("作者：千里冰封",JLabel.CENTER);
        jl.setFont(new Font("黑体",Font.BOLD,40));
        jl1.setFont(new Font("宋体",Font.BOLD,20));
        jl.setForeground(Color.RED);
        jl1.setForeground(Color.BLUE);
        c.add(jl,BorderLayout.CENTER);
        c.add(jl1,BorderLayout.SOUTH);
        buttonJP.add(start);
        buttonJP.add(cancel);
        buttonJP.setBorder(BorderFactory.createTitledBorder("公共操作区"));
        JPanel jp=new JPanel();//放两个单选按钮的面板
        jp.add(java=new JRadioButton("java界面"));
        jp.add(system=new JRadioButton("系统界面",true));
        java.addActionListener(this);
        system.addActionListener(this);
        jp.setBorder(BorderFactory.createTitledBorder("界面风格"));
        ButtonGroup bg=new ButtonGroup();
        bg.add(java);
        bg.add(system);
        JPanel all=new JPanel();
        all.add(jp);
        all.add(buttonJP);
        this.getContentPane().add(c,BorderLayout.CENTER);
        this.getContentPane().add(all,BorderLayout.SOUTH);
        this.setSize(500,400);
        this.setLocationRelativeTo(null);
        this.setVisible(true);
        this.setAlwaysOnTop(true);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
    private void updates(){
        this.setVisible(true);
        if(get!=null){
            //如果索引是0,则表示一张图片都没有被加入过,
            //则要清除当前的东西,重新把tabpane放进来
            if(index==0){
                c.removeAll();
                c.add(jtp,BorderLayout.CENTER);
            }else{//否则的话,直接对tabpane添加面板就可以了
                //就什么都不用做了
            }
            PicPanel pic=new PicPanel(get);
            jtp.addTab("图片"+(++index),pic);
            jtp.setSelectedComponent(pic);
            SwingUtilities.updateComponentTreeUI(c);
        }
    }
    private void doStart(){
        try{
            this.setVisible(false);
            Thread.sleep(500);//睡500毫秒是为了让主窗完全不见
            Robot ro=new Robot();
            Toolkit tk=Toolkit.getDefaultToolkit();
            Dimension di=tk.getScreenSize();
            Rectangle rec=new Rectangle(0,0,di.width,di.height);
            BufferedImage bi=ro.createScreenCapture(rec);
            JFrame jf=new JFrame();
            Temp temp=new Temp(jf,bi,di.width,di.height);
            jf.getContentPane().add(temp,BorderLayout.CENTER);
            jf.setUndecorated(true);
            jf.setSize(di);
            jf.setVisible(true);
            jf.setAlwaysOnTop(true);
        } catch(Exception exe){
            exe.printStackTrace();
        }
    }
    /**
     *公用的处理保存图片的方法
     *这个方法不再私有了
     */
    public  void doSave(BufferedImage get){
        try{
            if(get==null){
                JOptionPane.showMessageDialog(this,"图片不能为空!!","错误",JOptionPane.ERROR_MESSAGE);
                return;
            }
            JFileChooser jfc=new JFileChooser(".");
            jfc.addChoosableFileFilter(new GIFfilter());
            jfc.addChoosableFileFilter(new BMPfilter());
            jfc.addChoosableFileFilter(new JPGfilter());
            jfc.addChoosableFileFilter(new PNGfilter());
            int i=jfc.showSaveDialog(this);
            if(i==JFileChooser.APPROVE_OPTION){
                File file=jfc.getSelectedFile();
                String about="PNG";
                String ext=file.toString().toLowerCase();
                javax.swing.filechooser.FileFilter ff=jfc.getFileFilter();
                if(ff instanceof JPGfilter){
                    if(!ext.endsWith(".jpg")){
                        String ns=ext+".jpg";
                        file=new File(ns);
                        about="JPG";
                    }
                } else if(ff instanceof PNGfilter){
                    if(!ext.endsWith(".png")){
                        String ns=ext+".png";
                        file=new File(ns);
                        about="PNG";
                    }
                }else if(ff instanceof BMPfilter){
                    if(!ext.endsWith(".bmp")){
                        String ns=ext+".bmp";
                        file=new File(ns);
                        about="BMP";
                    }
                }else if(ff instanceof GIFfilter){
                    if(!ext.endsWith(".gif")){
                        String ns=ext+".gif";
                        file=new File(ns);
                        about="GIF";
                    }
                }
                if(ImageIO.write(get,about,file)){
                    JOptionPane.showMessageDialog(this,"保存成功！");
                } else
                    JOptionPane.showMessageDialog(this,"保存失败！");
            }
        } catch(Exception exe){
            exe.printStackTrace();
        }
    }
    /** 
     *公共的处理把当前的图片加入剪帖板的方法
     */
    public void doCopy(final BufferedImage image){
        try{
            if(get==null){
                JOptionPane.showMessageDialog(this,"图片不能为空!!","错误",JOptionPane.ERROR_MESSAGE);
                return;
            }
            Transferable trans = new Transferable(){
                public DataFlavor[] getTransferDataFlavors() {
                    return new DataFlavor[] { DataFlavor.imageFlavor };
                }
                public boolean isDataFlavorSupported(DataFlavor flavor) {
                    return DataFlavor.imageFlavor.equals(flavor);
                }
                public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException {
                    if(isDataFlavorSupported(flavor))
                        return image;
                    throw new UnsupportedFlavorException(flavor);
                }
                
            };
            Toolkit.getDefaultToolkit().getSystemClipboard().setContents(trans, null);
            JOptionPane.showMessageDialog(this,"已复制到系统粘帖板!!");
        }catch(Exception exe){
            exe.printStackTrace();
            JOptionPane.showMessageDialog(this,"复制到系统粘帖板出错!!","错误",JOptionPane.ERROR_MESSAGE);
        }
    }
    //处理关闭事件
    private void doClose(Component c){
        jtp.remove(c);
        c=null;
        System.gc();
    }
    public void actionPerformed(ActionEvent ae){
        Object source=ae.getSource();
        if(source==start){
            doStart();
        } else if(source==cancel){
            System.exit(0);
        }else if(source==java){
            try{
                UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
                SwingUtilities.updateComponentTreeUI(this);
            }catch(Exception exe){
                exe.printStackTrace();
            }
        }else if(source==system){
            try{
                UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                SwingUtilities.updateComponentTreeUI(this);
            }catch(Exception exe){
                exe.printStackTrace();
            }
        }
    }
    //一个内部类,它表示一个面板,一个可以被放进tabpane的面板
    //也有自己的一套处理保存和复制的方法
    private class PicPanel extends JPanel implements ActionListener{
        JButton save,copy,close;//表示保存,复制,关闭的按钮
        BufferedImage get;//得到的图片
        public PicPanel(BufferedImage get){
            super(new BorderLayout());
            this.get=get;
            initPanel();
        }
        private void initPanel(){
            save=new JButton("保存(S)");
            copy=new JButton("复制到剪帖板(C)");
            close=new JButton("关闭(X)");
            save.setMnemonic('S');
            copy.setMnemonic('C');
            close.setMnemonic('X');
            JPanel buttonPanel=new JPanel();
            buttonPanel.add(copy);
            buttonPanel.add(save);
            buttonPanel.add(close);
            JLabel icon=new JLabel(new ImageIcon(get));
            this.add(new JScrollPane(icon),BorderLayout.CENTER);
            this.add(buttonPanel,BorderLayout.SOUTH);
            save.addActionListener(this);
            copy.addActionListener(this);
            close.addActionListener(this);
        }
        public void actionPerformed(ActionEvent e) {
            Object source=e.getSource();
            if(source==save){
                doSave(get);
            }else if(source==copy){
                doCopy(get);
            }else if(source==close){
                get=null;
                doClose(this);
            }
        }
    }
    //保存BMP格式的过滤器
    private class BMPfilter extends javax.swing.filechooser.FileFilter{
        public BMPfilter(){
            
        }
        public boolean accept(File file){
            if(file.toString().toLowerCase().endsWith(".bmp")||
                    file.isDirectory()){
                return true;
            } else
                return false;
        }
        public String getDescription(){
            return "*.BMP(BMP图像)";
        }
    }
    //保存JPG格式的过滤器
    private class JPGfilter extends javax.swing.filechooser.FileFilter{
        public JPGfilter(){
            
        }
        public boolean accept(File file){
            if(file.toString().toLowerCase().endsWith(".jpg")||
                    file.isDirectory()){
                return true;
            } else
                return false;
        }
        public String getDescription(){
            return "*.JPG(JPG图像)";
        }
    }
    //保存GIF格式的过滤器
    private class GIFfilter extends javax.swing.filechooser.FileFilter{
        public GIFfilter(){
            
        }
        public boolean accept(File file){
            if(file.toString().toLowerCase().endsWith(".gif")||
                    file.isDirectory()){
                return true;
            } else
                return false;
        }
        public String getDescription(){
            return "*.GIF(GIF图像)";
        }
    }
    
    //保存PNG格式的过滤器
    private class PNGfilter extends javax.swing.filechooser.FileFilter{
        public boolean accept(File file){
            if(file.toString().toLowerCase().endsWith(".png")||
                    file.isDirectory()){