createobjectdialog.java

UML设计测试工具

/*
 * USE - UML based specification environment
 * Copyright (C) 1999-2004 Mark Richters, University of Bremen
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/* $ProjectHeader: use 2-3-0-release.1 Mon, 12 Sep 2005 20:18:33 +0200 green $ */

package org.tzi.use.gui.main;

import java.awt.*;
import java.awt.event.*;
import java.util.ArrayList;
import javax.swing.*;

import org.tzi.use.gui.util.CloseOnEscapeKeyListener;
import org.tzi.use.gui.util.GridBagHelper;
import org.tzi.use.uml.mm.MClass;
import org.tzi.use.uml.sys.MSystem;

/** 
 * A dialog for creating objects.
 * 
 * @version     $ProjectVersion: 2-3-0-release.1 $
 * @author  Mark Richters
 */
class CreateObjectDialog extends JDialog {
    private MSystem fSystem;
    private MainWindow fParent;
    private Object[] fClasses;
    private JList fListClasses;
    private JTextField fTextObjectName;

    CreateObjectDialog(MSystem system, MainWindow parent) {
        super(parent, "Create object");
        fSystem = system;
        fParent = parent;

        setDefaultCloseOperation(DISPOSE_ON_CLOSE);

        // create class list and label
        fClasses = fSystem.model().classes().toArray();
        fListClasses = new JList(fClasses);
        fListClasses.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        JLabel labelClasses = new JLabel("Select class:");
        labelClasses.setDisplayedMnemonic('S');
        labelClasses.setLabelFor(fListClasses);
        JScrollPane scrollListClasses = new JScrollPane(fListClasses);

        // create object name field and label
        fTextObjectName = new JTextField(10);
        JLabel labelObjectName = new JLabel("Object name:");
        labelObjectName.setDisplayedMnemonic('O');
        labelObjectName.setLabelFor(fTextObjectName);

        // create buttons
        JButton btnCreate = new JButton("Create");
        btnCreate.setMnemonic('C');
        btnCreate.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    createObject();
                }
            });
        JButton btnClose = new JButton("Close");
        btnClose.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    closeDialog();
                }
            });

        // layout content pane
        JComponent contentPane = (JComponent) getContentPane();
        contentPane.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));

        GridBagHelper gh = new GridBagHelper(contentPane);
        gh.add(labelClasses, 0, 0, 
               1, 1, 0.0, 0.0, GridBagConstraints.HORIZONTAL);

        gh.add(scrollListClasses, 0, 1, 
               1, GridBagConstraints.REMAINDER, 1.0, 0.0, 
               GridBagConstraints.BOTH);

        gh.add(labelObjectName, 1, 0, 
               1, 1, 0.0, 0.0, GridBagConstraints.HORIZONTAL);

        gh.add(fTextObjectName, 1, 1, 
               1, 1, 0.0, 0.0, GridBagConstraints.HORIZONTAL);

        gh.add(new JPanel(), 1, 2, 
               1, 1, 0.0, 1.0, GridBagConstraints.BOTH);

        gh.add(btnCreate, 1, 3, 
               1, 1, 0.0, 0.0, GridBagConstraints.HORIZONTAL);

        gh.add(btnClose, 1, 4, 
               1, 1, 0.0, 0.0, GridBagConstraints.HORIZONTAL);


        getRootPane().setDefaultButton(btnCreate);
        pack();
        setSize(new Dimension(300, 300));
        setLocationRelativeTo(parent);
        fListClasses.requestFocus();
    
        // allow dialog close on escape key
        CloseOnEscapeKeyListener ekl = new CloseOnEscapeKeyListener(this);
        addKeyListener(ekl);
        fTextObjectName.addKeyListener(ekl);
    }

    private void closeDialog() {
        setVisible(false);
        dispose();
    }

    private void createObject() {
        // get object name
        String name = fTextObjectName.getText();
        if (name.length() == 0 ) {
            JOptionPane.showMessageDialog(this,
                                          "You need to specify a name for the new object.",
                                          "Error",
                                          JOptionPane.ERROR_MESSAGE);
            return;
        }

        // get class
        int i = fListClasses.getSelectedIndex();
        if (i < 0 || i >= fClasses.length ) {
            JOptionPane.showMessageDialog(this,
                                          "You need to specify a class for the new object.",
                                          "Error",
                                          JOptionPane.ERROR_MESSAGE);
            return;
        }

        MClass cls = (MClass) fClasses[i];
        ArrayList names = new ArrayList(1);
        names.add(name);
        fParent.createObject(cls.name(), names);
    }
}