AbstractDialogWizard.java :  » Database-Client » sqleonardo » nickyb » sqleonardo » common » gui » Java Open Source

/*
 * SQLeonardo :: java database frontend
 * Copyright (C) 2004 nickyb@users.sourceforge.net
 * 
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

package nickyb.sqleonardo.common.gui;

import java.awt.CardLayout;
import java.awt.Component;
import java.awt.event.ActionEvent;

import javax.swing.JPanel;
import nickyb.sqleonardo.common.util.I18n;

public abstract class AbstractDialogWizard extends AbstractDialogModal
{
  private int step = 0;
  
  private JPanel cardPanel;
  private CardLayout cardLayout;

  protected CommandButton btnBack;
  protected CommandButton btnNext;
  
  protected AbstractDialogWizard(Component owner, String title)
  {
    this(owner, title, INITIAL_WIDTH, INITIAL_HEIGHT);
  }
  
  protected AbstractDialogWizard(Component owner, String title, int width, int height)
  {
    super(owner, title, width, height);
    
    cardPanel = new JPanel();
    cardPanel.setLayout(cardLayout = new CardLayout());
    
    getContentPane().add(cardPanel);
    
    btnNext = insertButton(1,I18n.getString("application.next","next >"));
    btnBack = insertButton(1,I18n.getString("application.back","< back"));
  }
  
  protected void setBarEnabled(boolean b)
  {
    super.setBarEnabled(b);
    btnBack.setEnabled(step!=0);
  }
  
  protected boolean onBack()
  {
    setStep(0);
    return false;
  }

  protected abstract boolean onNext();
  
  protected void addStep(Component c)
  {
    cardPanel.add("step"+cardPanel.getComponentCount(),c);
  }
  
  protected int getStep()
  {
    return step;
  }
  
  protected void setStep(int idx)
  {
    setBarEnabled(false);
    
    step = idx;
    cardLayout.show(cardPanel,"step"+step);    
    
    if(step==cardPanel.getComponentCount()-1)
      btnNext.setText(I18n.getString("application.ok","ok"));
    else
      btnNext.setText(I18n.getString("application.next","next >"));

    setBarEnabled(true);
  }
  
  public void actionPerformed(ActionEvent ae)
  {
    if(ae.getSource() == btnBack)
    {
      if(onBack())
        setStep(step-1);
      return;
    }
    else if(ae.getSource() == btnNext)
    {
      if(!onNext()) return;
      
      if(!btnNext.getText().equals(I18n.getString("application.ok","ok")))
      {
        setStep(step+1);
        return;
      }
    }

    super.actionPerformed(ae);
  }
}