maininterface.java

来自「本人写的一个简单VCD租赁系统」· Java 代码 · 共 318 行

//************************************************
//MainInterface.java
//This class is used to create the main GUI window.
//Execute this class to run the application.
//Created by Xiaobin Lin               3/Dec/2004
//************************************************

package Main;

import javax.swing.*;
import javax.swing.WindowConstants.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;


public class MainInterface extends JFrame {
    
    // Creates new form MainInterface
    public MainInterface() {
        boolean fileExist = true;
        // Create file object...
        File loadFile = new File("save.dat");
        // Create the file input stream...
        FileInputStream fileInputStream = null;
        try
        {
            fileInputStream = new FileInputStream(loadFile);
        }
        catch(FileNotFoundException e) //throw out a exception when file not found
        {
            fileExist = false;            
        }
        if (fileExist == true){
            ObjectInputStream objectInputStream = null;
            try{
                // Create the object input stream...
                objectInputStream = new ObjectInputStream(fileInputStream); 
                // Read the object from the object input stream...
                memberSet = (MemberSet) objectInputStream.readObject();
                videoSet = (VideoSet) objectInputStream.readObject();
                lendingSet = (LendingSet) objectInputStream.readObject();  
            }
            catch(ClassNotFoundException e){
                System.out.println(e);
            }
            catch(IOException e){
                System.out.println(e);
            }
        }
        else{
            memberSet = new MemberSet(); 
            videoSet = new VideoSet();
            lendingSet = new LendingSet();
        }
        //set table model       
        tableHandlerMember = new TableHandler(memberSet);
        tableHandlerVideo = new TableHandler(videoSet);
        initComponents();
    }
    
    // This method is called from within the constructor to
    // initialize the form.
    private void initComponents() {
        tabbedPaneMain = new JTabbedPane();
        scrollPaneMembers = new JScrollPane();
        tableMembers = new JTable();
        scrollPaneVideos = new JScrollPane();
        tableVideos = new JTable();
        menuBarMain = new JMenuBar();
        menuOperation = new JMenu();
        menuItemBorrow = new JMenuItem();
        menuItemReturn = new JMenuItem();
        separator1 = new JSeparator();
        menuItemAddVideo = new JMenuItem();
        menuItemDelVideo = new JMenuItem();
        separator2 = new JSeparator();
        menuItemExit = new JMenuItem();
        menuHelp = new JMenu();
        menuItemAbout = new JMenuItem();

        getContentPane().setLayout(null);

        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setTitle("Have-Videos-Must-Watch");
        setName("frameMainInterface");
        setResizable(false);
        tabbedPaneMain.setFont(new Font("Times New Roman", 0, 12));
        tabbedPaneMain.setPreferredSize(new Dimension(457, 300));
        scrollPaneMembers.setFont(new Font("Times New Roman", 0, 12));
        scrollPaneMembers.setPreferredSize(new Dimension(452, 270));
        tableMembers.setFont(new Font("Times New Roman", 0, 12));
        tableMembers.setModel(tableHandlerMember);
        scrollPaneMembers.setViewportView(tableMembers);

        tabbedPaneMain.addTab("View All Member Details", scrollPaneMembers);

        scrollPaneVideos.setFont(new Font("Times New Roman", 0, 12));
        scrollPaneVideos.setPreferredSize(new Dimension(452, 270));
        tableVideos.setFont(new Font("Times New Roman", 0, 12));
        tableVideos.setModel(tableHandlerVideo);
        scrollPaneVideos.setViewportView(tableVideos);

        tabbedPaneMain.addTab("View All Video Details", scrollPaneVideos);

        getContentPane().add(tabbedPaneMain);
        tabbedPaneMain.setBounds(10, 10, 540, 350);

        menuOperation.setMnemonic('o');
        menuOperation.setText("Operation");
        menuOperation.setFont(new Font("Times New Roman", 0, 12));
        menuItemBorrow.setFont(new Font("Times New Roman", 0, 12));
        menuItemBorrow.setMnemonic('b');
        menuItemBorrow.setText("Borrow a Video");
        menuItemBorrow.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                menuItemBorrowActionPerformed(evt);
            }
        });

        menuOperation.add(menuItemBorrow);

        menuItemReturn.setFont(new Font("Times New Roman", 0, 12));
        menuItemReturn.setMnemonic('r');
        menuItemReturn.setText("Return a Video");
        menuItemReturn.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                menuItemReturnActionPerformed(evt);
            }
        });

        menuOperation.add(menuItemReturn);

        menuOperation.add(separator1);

        menuItemAddVideo.setFont(new Font("Times New Roman", 0, 12));
        menuItemAddVideo.setMnemonic('a');
        menuItemAddVideo.setText("Add a New Video");
        menuItemAddVideo.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                menuItemAddVideoActionPerformed(evt);
            }
        });

        menuOperation.add(menuItemAddVideo);

        menuItemDelVideo.setFont(new Font("Times New Roman", 0, 12));
        menuItemDelVideo.setMnemonic('d');
        menuItemDelVideo.setText("Delete a Video");
        menuItemDelVideo.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                menuItemDelVideoActionPerformed(evt);
            }
        });

        menuOperation.add(menuItemDelVideo);

        menuOperation.add(separator2);

        menuItemExit.setFont(new Font("Times New Roman", 0, 12));
        menuItemExit.setMnemonic('e');
        menuItemExit.setText("Exit");
        menuItemExit.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                menuItemExitActionPerformed(evt);
            }
        });

        menuOperation.add(menuItemExit);

        menuBarMain.add(menuOperation);

        menuHelp.setMnemonic('h');
        menuHelp.setFont(new Font("Times New Roman", 0, 12));
        menuHelp.setLabel("Help");
        menuItemAbout.setFont(new Font("Times New Roman", 0, 12));
        menuItemAbout.setMnemonic('a');
        menuItemAbout.setText("About");
        menuItemAbout.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                menuItemAboutActionPerformed(evt);
            }
        });

        menuHelp.add(menuItemAbout);

        menuBarMain.add(menuHelp);

        setJMenuBar(menuBarMain);

        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        setBounds((screenSize.width-570)/2, (screenSize.height-420)/2, 570, 420);
    }//the end of initComponents

    //when "about" menuitem is selected
    private void menuItemAboutActionPerformed(ActionEvent evt) {
        aboutDialog = new AboutDialog(this, true);
        aboutDialog.setVisible(true);
    }
    
    //when "del-video" menuitem is selected
    private void menuItemDelVideoActionPerformed(ActionEvent evt) {
        deleteVideoDialog = new DeleteVideoDialog(this, true, videoSet, lendingSet);
        deleteVideoDialog.setVisible(true);
        saveToFile();
        tableHandlerVideo.updateTable(videoSet);
        tableVideos.updateUI();
    }
    
    //when "add-video" menuitem is selected
    private void menuItemAddVideoActionPerformed(ActionEvent evt) {
        addNewVideoDialog = new AddNewVideoDialog(this, true, videoSet);
        addNewVideoDialog.setVisible(true);
        saveToFile();
        tableHandlerVideo.updateTable(videoSet);
        tableVideos.updateUI();
    }

    //when "return" menuitem is selected
    private void menuItemReturnActionPerformed(ActionEvent evt) {
        returnDialog = new ReturnDialog(this, true, memberSet, videoSet, lendingSet);
        returnDialog.setVisible(true);
        //save to file
        saveToFile();
    }
    
    //when "exit" menuitem is selected
    private void menuItemExitActionPerformed(ActionEvent evt) {
        exitApplication();
    }
    
    //when "borrow" menuitem is selected
    private void menuItemBorrowActionPerformed(ActionEvent evt) {
        borrowDialog = new BorrowDialog(this, true, memberSet, videoSet, lendingSet);
        borrowDialog.setVisible(true);
        saveToFile();
    }
    
    //exit application
    public void exitApplication(){
	setVisible(false);
	dispose();
	System.exit(0);		
    }
    
    //save memberSet, videoSet and lendingSet to "save.dat" file    
    private void saveToFile(){
         // Create out file object...
        File saveFile = new File("save.dat");
       
        // Create the file output stream...
        FileOutputStream fileOutputStream = null;
        try
        {
            fileOutputStream = new FileOutputStream(saveFile);
        }    
        catch(FileNotFoundException e)
        {
           System.out.println(e);
        }
       
        // Create the object output stream...
        ObjectOutputStream objectOutputStream = null;
        
        try
        {
           objectOutputStream = new ObjectOutputStream(fileOutputStream);
       
           // Write the object to the object output stream...
           objectOutputStream.writeObject(memberSet);
           objectOutputStream.writeObject(videoSet);
           objectOutputStream.writeObject(lendingSet);
        }
        catch(IOException e)
        {
           System.out.println(e);
        }
    }
    
    //main method
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new MainInterface().setVisible(true);
            }
        });
    }
    
    // Variables declaration - GUI-related
    private JMenuBar menuBarMain;
    private JMenu menuHelp;
    private JMenuItem menuItemAbout;
    private JMenuItem menuItemAddVideo;
    private JMenuItem menuItemBorrow;
    private JMenuItem menuItemDelVideo;
    private JMenuItem menuItemExit;
    private JMenuItem menuItemReturn;
    private JMenu menuOperation;
    private JScrollPane scrollPaneMembers;
    private JScrollPane scrollPaneVideos;
    private JSeparator separator1;
    private JSeparator separator2;
    private JTabbedPane tabbedPaneMain;
    private JTable tableMembers;
    private JTable tableVideos;
    // Variables declaration - non-GUI-related
    private TableHandler tableHandlerMember;
    private TableHandler tableHandlerVideo;
    private MemberSet memberSet;
    private VideoSet videoSet;
    private LendingSet lendingSet;
    private BorrowDialog borrowDialog;
    private ReturnDialog returnDialog;
    private AddNewVideoDialog addNewVideoDialog;
    private DeleteVideoDialog deleteVideoDialog;
    private AboutDialog aboutDialog;
}