promptdialog.java

基于Java的软件信息系统－项目管理

package ui;

import javax.swing.*;
import core.Command;
import java.util.List;
import java.util.ArrayList;
import java.awt.*;
import java.awt.event.*;

public class PromptDialog extends JDialog
{
    private Command m_command;
    private int m_count;
    private JLabel [] m_labels;
    private JTextField [] m_inputs;
    private boolean m_canceled;

    public PromptDialog (Command cmd)
    {
        super (cmd.getFrame(), true);
        m_canceled = true;
        m_command = cmd;
        String [] prompts = cmd.getParameterPrompts ();
        m_count = prompts.length;
        m_labels = new JLabel [m_count];
        m_inputs = new JTextField [m_count];
        for (int i = 0; i < m_count; i++)
        {
            m_labels[i] = new JLabel (prompts[i]);
            m_inputs[i] = new JTextField (20);
        }
        configureDisplay ();
        pack();
        show();
    }
    
    public boolean isCanceled ()
    {
        return m_canceled;
    }

    private void configureDisplay ()
    {
        // a vertical box arrangement
        JPanel dlogPanel = new JPanel ();
        dlogPanel.setLayout (new BoxLayout (dlogPanel, BoxLayout.Y_AXIS));
        dlogPanel.add (createQAPanel ());
        dlogPanel.add (createButtonPanel ());

        this.getContentPane().add (dlogPanel, BorderLayout.CENTER);
    }

        // ----> top box contains two grid panels
    private JPanel createQAPanel ()
    {
        JPanel qaPanel = new JPanel ();
        qaPanel.setLayout (new BoxLayout (qaPanel, BoxLayout.X_AXIS));
        JPanel labelPanel = new JPanel ();
        labelPanel.setLayout (new GridLayout (m_count, 1));
        for (int i = 0; i < m_count; i++)
            labelPanel.add (m_labels[i]);
        JPanel inputPanel = new JPanel ();
        inputPanel.setLayout (new GridLayout (m_count, 1));
        for (int i = 0; i < m_count; i++)
            inputPanel.add (m_inputs[i]);
        qaPanel.add (labelPanel);
        qaPanel.add (inputPanel);

        return qaPanel;
    }

    private JPanel createButtonPanel ()
    {
        // ----> bottom box contains buttons
        JPanel buttonPanel = new JPanel ();
        buttonPanel.setLayout (new BoxLayout (buttonPanel, BoxLayout.X_AXIS));
        JButton okButton = new JButton ("OK");
        okButton.addActionListener (new ActionListener ()
            {
                public void actionPerformed (ActionEvent e)
                {
                    m_canceled = false;
                    PromptDialog.this.hide ();
                }
            });
        JButton cancelButton = new JButton ("Cancel");
        cancelButton.addActionListener (new ActionListener ()
            {
                public void actionPerformed (ActionEvent e)
                {
                    m_canceled = true;
                    PromptDialog.this.hide ();
                }
            });
        buttonPanel.add (okButton);
        buttonPanel.add (cancelButton);
        return buttonPanel;
    }

    public List getValues ()
    {
        List answer = new ArrayList ();
        for (int i = 0; i < m_count; i++)
        {
            answer.add (m_inputs[i].getText());
        }
        return answer;
    }
}