/*
 *   JSampler - a java front-end for LinuxSampler
 *
 *   Copyright (C) 2005-2006 Grigor Iliev <grigor@grigoriliev.com>
 *
 *   This file is part of JSampler.
 *
 *   JSampler is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License version 2
 *   as published by the Free Software Foundation.
 *
 *   JSampler 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 JSampler; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *   MA  02111-1307  USA
 */

package org.jsampler.view.classic;

import java.awt.Dimension;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import java.io.File;

import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;

import net.sf.juife.OkCancelDialog;

import org.jsampler.CC;

import static org.jsampler.view.classic.ClassicI18n.i18n;

/**
 *
 * @author Grigor Iliev
 */
public class JSamplerHomeChooser extends OkCancelDialog {
	private final static JTextField tfHome = new JTextField();
	
	private final JButton btnBrowse =
		new JButton(i18n.getLabel("JSamplerHomeChooser.btnBrowse"));
	
	
	/** Creates a new instance of JSamplerHomeChooser */
	public JSamplerHomeChooser(Frame owner) {
		super(owner, i18n.getLabel("JSamplerHomeChooser.title"));
		
		JPanel p = new JPanel();
		p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
		Dimension d = new Dimension(Short.MAX_VALUE, tfHome.getPreferredSize().height);
		tfHome.setMaximumSize(d);
		p.add(tfHome);
		p.add(Box.createRigidArea(new Dimension(6, 0)));
		p.add(btnBrowse);
		
		p.setPreferredSize(new Dimension(350, p.getPreferredSize().height));
		
		setMainPane(p);
		
		if(CC.getJSamplerHome() != null) tfHome.setText(CC.getJSamplerHome());
		else tfHome.setText(System.getProperty("user.home") + File.separator + ".jsampler");
		
		btnBrowse.addActionListener(new ActionListener() {
			public void
			actionPerformed(ActionEvent e) { onBrowse(); }
		});
		
		btnBrowse.requestFocusInWindow();
		this.setResizable(true);
	}
	
	private void
	onBrowse() {
		JFileChooser fc = new JFileChooser();
		fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
		int result = fc.showOpenDialog(this);
		if(result != JFileChooser.APPROVE_OPTION) return;
		
		tfHome.setText(fc.getSelectedFile().getPath() + File.separator + ".jsampler");
		btnOk.requestFocusInWindow();
		
	}
	
	protected void
	onOk() {
		if(tfHome.getText().length() == 0) {
			JOptionPane.showMessageDialog (
				this, i18n.getLabel("JSamplerHomeChooser.selectFile"),
				"",
				JOptionPane.INFORMATION_MESSAGE
			);
			
			return;
		}
		
		setVisible(false);
	}
	
	protected void
	onCancel() { setVisible(false); }
	
	/**
	 * Gets the specified JSampler's home location.
	 * @return The specified JSampler's home location.
	 */
	public String
	getJSamplerHome() { return tfHome.getText(); }
}