/*
* 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.
*/
/*
* SqlViewerDialog.java
* Copyright (C) 2005 University of Waikato, Hamilton, New Zealand
*
*/
package weka.gui.sql;
import weka.gui.sql.event.ResultChangedEvent;
import weka.gui.sql.event.ResultChangedListener;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
/**
* A little dialog containing the SqlViewer.
*
* @author FracPete (fracpete at waikato dot ac dot nz)
* @version $Revision: 5279 $
*/
public class SqlViewerDialog
extends JDialog
implements ResultChangedListener {
/** for serialization. */
private static final long serialVersionUID = -31619864037233099L;
/** the parent frame. */
protected JFrame m_Parent;
/** the SQL panel. */
protected SqlViewer m_Viewer;
/** the panel for the buttons. */
protected JPanel m_PanelButtons;
/** the OK button. */
protected JButton m_ButtonOK = new JButton("OK");
/** the Cancel button. */
protected JButton m_ButtonCancel = new JButton("Cancel");
/** displays the current query. */
protected JLabel m_LabelQuery = new JLabel("");
/** whether to return sparse instances or not. */
protected JCheckBox m_CheckBoxSparseData = new JCheckBox("Generate sparse data");
/** the return value. */
protected int m_ReturnValue = JOptionPane.CANCEL_OPTION;
/** the connect string with which the query was run. */
protected String m_URL;
/** the user that was used to connect to the DB. */
protected String m_User;
/** the password that was used to connect to the DB. */
protected String m_Password;
/** the currently selected query. */
protected String m_Query;
/**
* initializes the dialog.
*
* @param parent the parent frame
*/
public SqlViewerDialog(JFrame parent) {
super(parent, "SQL-Viewer", true);
m_Parent = parent;
m_URL = "";
m_User = "";
m_Password = "";
m_Query = "";
createDialog();
}
/**
* builds the dialog and all its components.
*/
protected void createDialog() {
JPanel panel;
JPanel panel2;
final SqlViewerDialog dialog;
dialog = this;
setLayout(new BorderLayout());
// sql panel
m_Viewer = new SqlViewer(m_Parent);
add(m_Viewer, BorderLayout.CENTER);
panel2 = new JPanel(new BorderLayout());
add(panel2, BorderLayout.SOUTH);
// Buttons
panel = new JPanel(new FlowLayout(FlowLayout.RIGHT));
panel2.add(panel, BorderLayout.EAST);
m_ButtonOK.setMnemonic('O');
panel.add(m_ButtonOK);
m_ButtonOK.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
m_ReturnValue = JOptionPane.OK_OPTION;
// remove listener, otherwise does the disposal of resultspanel
// change the query again!
m_Viewer.removeResultChangedListener(dialog);
m_Viewer.saveSize();
dialog.dispose();
}
});
m_ButtonCancel.setMnemonic('C');
panel.add(m_ButtonCancel);
m_ButtonCancel.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
m_ReturnValue = JOptionPane.CANCEL_OPTION;
// remove listener, otherwise does the disposal of resultspanel
// change the query again!
m_Viewer.removeResultChangedListener(dialog);
m_Viewer.saveSize();
dialog.dispose();
}
});
// the checkbox for sparse data
panel = new JPanel(new FlowLayout(FlowLayout.LEFT));
panel2.add(panel, BorderLayout.WEST);
panel.add(m_CheckBoxSparseData);
m_CheckBoxSparseData.setMnemonic('s');
addWindowListener(new WindowAdapter() {
/**
* Invoked when a window is in the process of being closed.
*/
public void windowClosing(WindowEvent e) {
m_Viewer.saveSize();
}
});
// current Query
panel = new JPanel(new FlowLayout(FlowLayout.CENTER));
panel2.add(panel, BorderLayout.CENTER);
panel.add(m_LabelQuery);
pack();
getRootPane().setDefaultButton(m_ButtonOK);
setResizable(true);
// listener
m_Viewer.addResultChangedListener(this);
}
/**
* displays the dialog if TRUE.
*
* @param b if true displaying the dialog, hiding otherwise
*/
public void setVisible(boolean b) {
if (b)
m_ReturnValue = JOptionPane.CANCEL_OPTION;
super.setVisible(b);
// free up memory
if (b)
m_Viewer.clear();
}
/**
* returns whether the user clicked OK (JOptionPane.OK_OPTION) or whether he
* cancelled the dialog (JOptionPane.CANCEL_OPTION).
* @return the return value
* @see JOptionPane
*/
public int getReturnValue() {
return m_ReturnValue;
}
/**
* returns the chosen URL, if any.
*
* @return the URL
*/
public String getURL() {
return m_URL;
}
/**
* returns the chosen user, if any.
*
* @return the user
*/
public String getUser() {
return m_User;
}
/**
* returns the chosen password, if any.
*
* @return the password
*/
public String getPassword() {
return m_Password;
}
/**
* returns the chosen query, if any.
*
* @return the query
*/
public String getQuery() {
return m_Query;
}
/**
* Returns whether sparse data is generated.
*
* @return true if sparse data is to be generated
*/
public boolean getGenerateSparseData() {
return m_CheckBoxSparseData.isSelected();
}
/**
* This method gets called when a query has been executed.
*
* @param evt the event
*/
public void resultChanged(ResultChangedEvent evt) {
m_URL = evt.getURL();
m_User = evt.getUser();
m_Password = evt.getPassword();
m_Query = evt.getQuery();
m_LabelQuery.setText("Current query: " + m_Query);
}
/**
* for testing only.
*
* @param args ignored
*/
public static void main(String[] args) {
SqlViewerDialog dialog;
dialog = new SqlViewerDialog(null);
dialog.setDefaultCloseOperation(SqlViewerDialog.DISPOSE_ON_CLOSE);
dialog.setVisible(true);
System.out.println("ReturnValue = " + dialog.getReturnValue());
if (dialog.getReturnValue() == JOptionPane.OK_OPTION) {
System.out.println("URL = " + dialog.getURL());
System.out.println("User = " + dialog.getUser());
System.out.println("Password = " + dialog.getPassword().replaceAll(".", "*"));
System.out.println("Query = " + dialog.getQuery());
}
}
}