mainwindow.java

一个用于安排项目时间表的Java程序

/*
 *  $Id: MainWindow.java,v 1.2 2001/08/11 16:45:16 mastermitch Exp $ 
 *
 *  2001 (C) by Christian Garbs <[e-mail]>
 *
 *  Licensed under GNU GPL (see COPYING for details)
 *
 */

package de.cgarbs.apps.jprojecttimer;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.print.PageFormat;
import java.awt.print.PrinterJob;
import java.io.FileOutputStream;
import java.io.PrintStream;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JTabbedPane;

class MainWindow extends JFrame implements ActionListener
{
    Project project;
    JMenuBar myMenuBar;
    JMenu myFileMenu, myHelpMenu;
    JMenuItem menuQuit, menuLoad, menuSave, menuPrint, menuSaveAs, menuNew, menuAbout;

    TaskListPane tlp;
    ProjectPane pp;
    GanttDiagramPane gdp;

    public MainWindow(Project project)
    {
	super(Resource.get("JProjectTimer"));

	this.project = project;

	createWindows();

        Component contents = createComponents();
        getContentPane().add(contents, BorderLayout.CENTER);
	
        addWindowListener(new WindowAdapter() {
		public void windowClosing(WindowEvent e) {
		    System.exit(0);
		}
	    });

        pack();
        setVisible(true);
    }

    private void createWindows()
    {
	myMenuBar = new JMenuBar();
	myFileMenu = new JMenu(Resource.get("fileMenu"));
	myHelpMenu = new JMenu(Resource.get("helpMenu"));

	menuNew = new JMenuItem(Resource.get("menuNew"));
	menuNew.addActionListener(this);

	menuLoad = new JMenuItem(Resource.get("menuLoad"));
	menuLoad.addActionListener(this);

	menuSave = new JMenuItem(Resource.get("menuSave"));
	menuSave.addActionListener(this);

	menuSaveAs = new JMenuItem(Resource.get("menuSaveAs"));
	menuSaveAs.addActionListener(this);

	menuPrint = new JMenuItem(Resource.get("menuPrint"));
	menuPrint.addActionListener(this);

	menuQuit = new JMenuItem(Resource.get("menuQuit"));
	menuQuit.addActionListener(this);

	menuAbout = new JMenuItem(Resource.get("menuAbout"));
	menuAbout.addActionListener(this);

	myFileMenu.add(menuNew);
	myFileMenu.addSeparator();
	myFileMenu.add(menuLoad);
	myFileMenu.add(menuSave);
	myFileMenu.add(menuSaveAs);
	myFileMenu.addSeparator();
	myFileMenu.add(menuPrint);
	myFileMenu.addSeparator();
	myFileMenu.add(menuQuit);

	myHelpMenu.add(menuAbout);

	myMenuBar.add(myFileMenu);
	myMenuBar.add(myHelpMenu);
	
	setJMenuBar(myMenuBar);
    }

    public Component createComponents()
    {

        JTabbedPane pane = new JTabbedPane();
	pp = new ProjectPane(project);
	tlp = new TaskListPane(this, project);
	gdp =  new GanttDiagramPane(project);
	pane.addTab(Resource.get("project"), pp);
	pane.addTab(Resource.get("taskList"), tlp); 
	pane.addTab(Resource.get("ganttDiagram"), gdp);
        return pane;
    }

    public void actionPerformed(ActionEvent e)
    {
	if (e.getSource() == menuQuit) {
	    performQuit();
	} else if (e.getSource() == menuSaveAs) {
	    performSaveAs();
	} else if (e.getSource() == menuSave) {
	    performSave();
	} else if (e.getSource() == menuLoad) {
	    performLoad();
	} else if (e.getSource() == menuNew) {
	    performNew();
	} else if (e.getSource() == menuPrint) {
	    performPrint();
	} else if (e.getSource() == menuAbout) {
	    performAbout();
	}
    }

    public void performQuit()
    {
	if (project.needsToBeSaved()) {
	    if (JOptionPane.showConfirmDialog(this, Resource.get("reallyQuit"), Resource.get("confirmTitle"), JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION) {
		System.exit(0);
	    }
	} else {
	    System.exit(0);
	}
    }

    public void performNew()
    {
	if (project.needsToBeSaved()) {
	    if (JOptionPane.showConfirmDialog(this, Resource.get("reallyNew"), Resource.get("confirmTitle"), JOptionPane.YES_NO_OPTION) != JOptionPane.YES_OPTION) {
		return;
	    }
	}
	
	// Refresh all Panes
	project = new Project();
	refresh();
    }
	
    public void performLoad()
    {
	if (project.needsToBeSaved()) {
	    if (JOptionPane.showConfirmDialog(this, Resource.get("reallyLoad"), Resource.get("confirmTitle"), JOptionPane.YES_NO_OPTION) != JOptionPane.YES_OPTION) {
		return;
	    }
	}
	
	JFileChooser chooser = new JFileChooser();
	chooser.setDialogType(JFileChooser.OPEN_DIALOG);
	chooser.setDialogTitle(Resource.get("loadDialogTitle"));
	if (project.getFile() != null) {
	    chooser.setSelectedFile(project.getFile());
	}
	int returnVal = chooser.showOpenDialog(this);
	if(returnVal == JFileChooser.APPROVE_OPTION) {
	    project.readFromStream(chooser.getSelectedFile());
	    setTitle(Resource.get("JProjectTimer") + " - " + project.getFile().getName());
	    // Refresh all Panes
	    refresh();
	}
    }

    private void refresh()
    {
	pp.refresh();
	tlp.refresh();
	gdp.refresh();
    }

    public void performSave()
    {
	if (project.getFile() == null) {
	    performSaveAs();
	} else {
	    try {
		project.writeToStream(new PrintStream(new FileOutputStream(project.getFile())));
		project.hasBeenSaved();
	    } catch (Exception e) {}
	}
    }

    public void performSaveAs()
    {

	JFileChooser chooser = new JFileChooser();
	chooser.setDialogType(JFileChooser.SAVE_DIALOG);
	chooser.setDialogTitle(Resource.get("saveAsDialogTitle"));
	if (project.getFile() != null) {
	    chooser.setSelectedFile(project.getFile());
	}
	int returnVal = chooser.showSaveDialog(this);
	if(returnVal == JFileChooser.APPROVE_OPTION) {
	    project.setFile(chooser.getSelectedFile());
	    setTitle(Resource.get("JProjectTimer") + " - " + project.getFile().getName());
	    performSave();
	} 

    }

    public void performPrint()
    {
	PrinterJob printJob = PrinterJob.getPrinterJob();
	//PageFormat pf = printJob.pageDialog(printJob.defaultPage());
	GanttDiagram output = new GanttDiagram(project);
	output.refresh();
	printJob.setPrintable(output);
	if (printJob.printDialog()) {
	    try {
		printJob.print();
		System.out.println("printed!");
	    } catch (Exception ex) {
		ex.printStackTrace();
	    }
	}
    }

    public void performAbout()
    {
    }
}