frame1.java

文本编辑器

package textedit2;

import java.awt.*;
import java.awt.event.*;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import java.awt.BorderLayout;
import javax.swing.JTextArea;
import java.io.*;
import javax.swing.text.*;
import javax.swing.JFileChooser;
import java.awt.Rectangle;
import javax.swing.*;
import com.borland.dbswing.*;


//import com.borland.jbcl.control.FontChooser;
//import com.borland.dbswing.*;


/**
 * <p>Title: 文件编辑器</p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c)天马行空</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
public class Frame1 extends JFrame {
    //变量定义----------------------------
    String currFileName=null;
    boolean dirty=false;
    boolean flag=true;//自动换行的标记
    String text="";//记录打开的文本内容
    String text2="";//记录撤销前的文本内容
    FontChooser fontChooser1 = new FontChooser();//创建字型选择对话框

    //----------------------------------------
    JPanel contentPane;
    JMenuBar jMenuBar1 = new JMenuBar();
    JMenu jMenuFile = new JMenu();
    JMenuItem jMenuFileExit = new JMenuItem();
    JMenu jMenuHelp = new JMenu();
    JMenuItem jMenuHelpAbout = new JMenuItem();
    JLabel statusBar = new JLabel();
    JMenuItem jMenuFileNew = new JMenuItem();
    JMenuItem jMenuFileOpen = new JMenuItem();
    JMenuItem jMenuFileSave = new JMenuItem();
    JMenuItem jMenuFileSaveAs = new JMenuItem();
    JMenu jMenuGeShi = new JMenu();
    JMenuItem jMenuColor = new JMenuItem();
    JMenuItem jMenuBColor = new JMenuItem();
    JScrollPane jScrollPane1 = new JScrollPane();
    JTextArea jTextArea1 = new JTextArea();
    JFileChooser jFileChooser1 = new JFileChooser();
    JMenuItem jMenuChange = new JMenuItem();
    JOptionPane jOptionPane1 = new JOptionPane();
    JMenu jMenuBian = new JMenu();
    JMenuItem jMenuSAll = new JMenuItem();
    JMenuItem jMenuDAll = new JMenuItem();
    JMenuItem jMenuFont = new JMenuItem();
    JMenuItem jMenuCheXiao = new JMenuItem();
    public Frame1() {
        try {
            setDefaultCloseOperation(EXIT_ON_CLOSE);
            jbInit();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

    /**
     * Component initialization.
     *
     * @throws java.lang.Exception
     */
    private void jbInit() throws Exception {
        contentPane = (JPanel) getContentPane();
        contentPane.setLayout(null);
        setSize(new Dimension(400, 300));
        setTitle("无标题--文本编辑器");
        statusBar.setText("");
        statusBar.setBounds(new Rectangle( -1, 165, 400, 138));
        jMenuFile.setText("文件");
        jMenuFileExit.setText("退出");
        jMenuFileExit.addActionListener(new Frame1_jMenuFileExit_ActionAdapter(this));
        jMenuHelp.setText("帮助");
        jMenuHelpAbout.setText("关于");
        jMenuHelpAbout.addActionListener(new
                                         Frame1_jMenuHelpAbout_ActionAdapter(this));
        jMenuFileNew.setText("新建");
        jMenuFileNew.addActionListener(new Frame1_jMenuFileNew_actionAdapter(this));
        jMenuFileOpen.setText("打开");
        jMenuFileOpen.addActionListener(new Frame1_jMenuFileOpen_actionAdapter(this));
        jMenuFileSave.setText("保存");
        jMenuFileSave.addActionListener(new Frame1_jMenuFileSave_actionAdapter(this));
        jMenuFileSaveAs.setText("另存为");
        jMenuFileSaveAs.addActionListener(new
                                          Frame1_jMenuFileSaveAs_actionAdapter(this));
        jMenuGeShi.setText("格式");
        jMenuColor.setText("字体颜色");
        jMenuColor.addActionListener(new Frame1_jMenuColor_actionAdapter(this));
        jMenuBColor.setText("背景色");
        jMenuBColor.addActionListener(new Frame1_jMenuBColor_actionAdapter(this));
        jFileChooser1.setBounds(new Rectangle(9, 394, 400, 399));
        jScrollPane1.setBounds(new Rectangle(1, 0, 391, 224));
        jMenuChange.setText("自动换行");
        jMenuChange.addActionListener(new Frame1_jMenuChange_actionAdapter(this));
        jOptionPane1.setBounds(new Rectangle(69, 390, 262, 90));
        jMenuBian.setText("编辑");
        jMenuSAll.setText("全选");
        jMenuSAll.addActionListener(new Frame1_jMenuItem1_actionAdapter(this));
        jMenuDAll.setText("全删");
        jMenuDAll.addActionListener(new Frame1_jMenuDAll_actionAdapter(this));
        jMenuFont.setText("字体");
        jMenuFont.addActionListener(new Frame1_jMenuFont_actionAdapter(this));
        jMenuCheXiao.setText("撤销");
        jMenuCheXiao.addActionListener(new Frame1_jMenuCheXiao_actionAdapter(this));
        jMenuBar1.add(jMenuFile);
        jMenuBar1.add(jMenuBian);
        jMenuBar1.add(jMenuGeShi);
        jMenuFile.add(jMenuFileNew);
        jMenuFile.add(jMenuFileOpen);
        jMenuFile.add(jMenuFileSave);
        jMenuFile.add(jMenuFileSaveAs);
        jMenuFile.add(jMenuFileExit);
        jMenuBar1.add(jMenuHelp);
        jMenuHelp.add(jMenuHelpAbout);
        setJMenuBar(jMenuBar1);
        jMenuGeShi.addSeparator();
        jMenuGeShi.add(jMenuFont);
        jMenuGeShi.add(jMenuColor);
        jMenuGeShi.add(jMenuBColor);
        jMenuGeShi.add(jMenuChange);
        contentPane.add(jScrollPane1, null);
        jScrollPane1.getViewport().add(jTextArea1);
        contentPane.add(jFileChooser1, null);
        contentPane.add(statusBar, null);
        contentPane.add(jOptionPane1);
        jMenuBian.add(jMenuSAll);
        jMenuBian.add(jMenuDAll);
        jMenuBian.add(jMenuCheXiao);
        text2=jTextArea1.getText();
        fontChooser1.setFrame(this);
    }

    /**
     * File | Exit action performed.
     *
     * @param actionEvent ActionEvent
     */
    void jMenuFileExit_actionPerformed(ActionEvent actionEvent) {
      int flag2=JOptionPane.showConfirmDialog(null,
"真的要退出吗？", "天马行空制作室", JOptionPane.YES_NO_OPTION);
     //int flag2=JOptionPane.OK_OPTION;
     //String temp=(String)flag2;
     //jTextArea1.setText(flag2);
     if(flag2==1);
     else System.exit(0);
    }

    /**
     * Help | About action performed.
     *
     * @param actionEvent ActionEvent
     */
    void jMenuHelpAbout_actionPerformed(ActionEvent actionEvent) {
        Frame1_AboutBox dlg = new Frame1_AboutBox(this);
        Dimension dlgSize = dlg.getPreferredSize();
        Dimension frmSize = getSize();
        Point loc = getLocation();
        dlg.setLocation((frmSize.width - dlgSize.width) / 2 + loc.x,
                        (frmSize.height - dlgSize.height) / 2 + loc.y);
        dlg.setModal(true);
        dlg.pack();
        dlg.setVisible(true);
    }
    //方法定义------------------------------
    void openFile(String fileName)
    {
        try {
            File file = new File(fileName);
            int size = (int) file.length();
            int chars_read = 0;
            FileReader in = new FileReader(file);
            char[] data = new char[size];
            while (in.ready()) {
                chars_read += in.read(data, chars_read, size - chars_read);
            }
            in.close();
            jTextArea1.setText(new String(data, 0, chars_read));
            this.currFileName = fileName;
            this.dirty =false;
            statusBar.setText("打开了文件：" + fileName);
            updateCaption();
            text=jTextArea1.getText();
            text2=text;
        } catch (IOException e) {
            statusBar.setText("文件打开错误：" + fileName);
        }
    }

    void fileOpen()
   {
           if(!OkToAbandon())
           {
                   return;
           }
           if (JFileChooser.APPROVE_OPTION == jFileChooser1.showOpenDialog(this)) {
               openFile(jFileChooser1.getSelectedFile().getPath());
           }
           this.repaint();
       }
       boolean saveFile()
       {
           if (currFileName == null) {
               return saveAsFile();
           }
           try {
               File file = new File(currFileName);
               FileWriter out = new FileWriter(file);
               String text = jTextArea1.getText();
               out.write(text);
               out.close();
               this.dirty = false;
               statusBar.setText("保存到：" + currFileName);
               updateCaption();
               return true;
           } catch (IOException e) {
               statusBar.setText("Error saving" + currFileName);
           }
           return false;
       }

       boolean saveAsFile()
         {
             this.repaint();
             if (JFileChooser.APPROVE_OPTION == jFileChooser1.showSaveDialog(this)) {
                 currFileName = jFileChooser1.getSelectedFile().getPath();
                 this.repaint();
                 return saveFile();
             } else {
                 this.repaint();
                 return false;
             }
         }
         boolean OkToAbandon()
        {
                if(!dirty)
                {
                        return true;
                }
                int value=JOptionPane.showConfirmDialog(this,"保存修改？","Text Edit",JOptionPane.YES_NO_CANCEL_OPTION);
                switch(value)
                {
                        case JOptionPane.YES_OPTION:
                                return saveFile();
                        case JOptionPane.NO_OPTION:
                                return true;
                        case JOptionPane.CANCEL_OPTION:
                        default:
                                return false;
                }
        }

        void updateCaption()
            {
                String caption;
                if (currFileName == null) {
                    caption = "无标题";
                } else {
                    caption = currFileName;
                }

                if (dirty) {
                    caption = "*" + caption;
                }
                caption = "文本编辑器-" + caption;
                this.setTitle(caption);
            }

    public void jMenuFileNew_actionPerformed(ActionEvent e) {
       /* if (OkToAbandon()) {
           jTextArea1.setText("");
           currFileName = null;
           dirty = false;
           updateCaption();