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package XDEDM_Notepad;
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import java.awt.*; //图形界面java库
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import javax.lang.model.util.ElementScanner6;
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import javax.swing.*; //GUI工具包
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import java.awt.event.*; //AWT事件包
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import java.io.*; //输入输出
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import java.awt.datatransfer.*; //复制粘贴数据传输
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public class XNotepad extends JFrame implements ActionListener,WindowListener {
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JTextArea XNarea = new JTexArea();
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File fnameContainer;
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public XNotepad(){
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Font fnt = new Font("SimSun",Font.PLAIN,15); //宋体，15号
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Container con=getContentPane();
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JMenuBar XNb = new JMenuBar(); //菜单栏目
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JMenu XNfile = new JMenu("文件");
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JMenu XNedit = new JMenu("编辑");
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JMenu XNhelp = new JMenu("编辑");
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JMenu XNelse = new JMenu("其他");
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con.setLayout(new BorderLayout()); //边界布局
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JScrollPane sbrText = new JScrollPane(XNarea); //滚动条(根据需要显示)
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sbrText.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
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sbrText.setVisible(true); //显示滚动面板
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XNarea.setFont(fnt); //设置字体
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XNarea.setLineWrap(true); //自动换行
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XNarea.setWrapStyleWord(true); //单词换行
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XNarea.setVisible(true); //显示文本域
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con.add(sbrText); //添加滚动面板
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con.add(XNb,BorderLayout.NORTH); //添加菜单栏
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createMenuItem(XNfile,"新建"); //创建菜单项
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createMenuItem(XNfile,"打开");
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createMenuItem(XNfile,"保存");
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createMenuItem(XNedit,"复制");
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createMenuItem(XNedit,"剪切");
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createMenuItem(XNedit,"粘贴");
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createMenuItem(XNedit,"全选");
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createMenuItem(XNedit,"删除");
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createMenuItem(XNhelp,"字号");
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createMenuItem(XNhelp,"字体");
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createMenuItem(XNhelp,"缩放");
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createMenuItem(XNelse,"关于");
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createMenuItem(XNelse,"退出");
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XNb.add(XNfile); //添加菜单
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XNb.add(XNedit);
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XNb.add(XNhelp);
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XNb.add(XNelse);
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setJMenBar(XNb); //设置菜单栏
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//指定一个图片作为窗口的图标
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setIconImage(Toolkit.getDefaultToolkit().getImage("XNcat.jpg"));
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addWindowListener(this); //添加窗口监听器
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setSize(500,500); //设置窗口大小
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setTitle("新建记事本.txt"); //设置标题
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setVisible(true); //显示窗口
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}
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public void createMenuItem(JMenu jm,String txt){ //创建菜单项
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JMenuItem jmfire = new JMenuItem(txt); //创建菜单项
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jmfire.addActionListener(this); //添加监听器
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jm.add(jmfire);
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}
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public void actionPerformed(ActionEvent e){
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JFileChooser jfc = new JFileChooser(); //文件选择器
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if(e.getActionCommand().equals("新建")){
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this.setTitle("新建记事本.txt");
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XNarea.setText("");
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fnameContainer = null;
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}else if(e.getActionCommand().equals("打开")){
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int ret = jfc.showDialog(null,"打开");
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if(ret == JFileChooser.APPROVE_OPTION){
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try{
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File f = jfc.getSelectedFile();
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OpenFile(f.getAbsolutePath());
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this.setTitle(f.getName());
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fnameContainer = f;
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}catch(IOException ers){} //捕获异常
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}
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}else if(e.getActionCommand().equals("保存")){
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if(fnameContainer != null){
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jfc.setCurrentDirectory(fnameContainer);
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jfc.setSelectedFile(fnameContainer);
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}else{
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jfc.setSelectedFile(new File("新建记事本.txt"));
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}
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int ret = jfc.showDialog(null);
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if(ret == JFileChooser.APPROVE_OPTION){
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try{
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File fyl = jfc.getSelectedFile();
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SaveFile(fyl.getAbsolutePath());
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this.setTitle(fyl.getName());
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fnameContainer = fyl;
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}catch(Exception ers){}
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}
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}else if(e.getActionCommand().equals("复制")){
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XNarea.copy();
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}else if(e.getActionCommand().equals("剪切")){
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XNarea.cut();
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}else if(e.getActionCommand().equals("粘贴")){
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XNarea.paste();
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}else if(e.getActionCommand().equals("全选")){
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XNarea.selectAll();
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}else if(e.getActionCommand().equals("删除")){
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XNarea.replaceSelection("");
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}else if(e.getActionCommand().equals("字号")){
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}else if(e.getActionCommand().equals("字体")){
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}else if(e.getActionCommand().equals("缩放")){
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}else if(e.getActionCommand().equals("关于")){
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JOptionPane.showMessageDialog(this,"制作者:薛定谔的猫 团队","关于",JOptionPane.INFORMATION_MESSAGE);
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}else if(e.getActionCommand().equals("退出")){
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Exiting();
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}
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}
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private void OpenFile(String absolutePath) {
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}
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} |
