ListDlg.java

/*
 *  ListDlg.java
 *  (FScape)
 *
 *  Copyright (c) 2001-2016 Hanns Holger Rutz. All rights reserved.
 *
 *  This software is published under the GNU General Public License v3+
 *
 *
 *	For further information, please contact Hanns Holger Rutz at
 *	contact@sciss.de
 */

package de.sciss.fscape.gui;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

/**
 *  Dialog allowing the user to
 *	select a string from a list.
 */
public class ListDlg
		extends BasicDialog
		implements ActionListener {

// -------- private variables --------

    private static final int		GG_OK		= 0;
    private static final int		GG_CANCEL	= 1;

    private	final GUISupport		gui;
    private final JList				ggList;
    private final JButton			ggCancel, ggOk;

    private int						chosen		= -1;

// -------- public methods --------

    /**
     *	setVisible() wird automatisch aufgerufen
     *
     *	@param parent	aufrufendes Fenster
     *	@param title	Dialog-titel
     *	@param list		Strings der Liste
     */
    public ListDlg( Component parent, String title, String[] list )
    {
        super( parent, title, true );
//		setResizable( false );

        GridBagConstraints	con;

        gui				= new GUISupport();
        con				= gui.getGridBagConstraints();

        con.gridwidth	= GridBagConstraints.REMAINDER;
        con.fill		= GridBagConstraints.BOTH;
        con.weightx		= 1.0;
        con.weighty		= 1.0;
        ggList			= new JList( list );
//		for( int i = 0; i < list.length; i++ ) {
//			ggList.addItem( list[ i ]);
//		}
//		ggList.addItemListener( this );
        gui.addGadget( ggList, 9999 );

        con.gridwidth	= 1;
        con.fill		= GridBagConstraints.HORIZONTAL;
        con.weightx		= 0.0;
        con.weighty		= 0.0;
        ggCancel		= new JButton( " Cancel " );
        ggOk			= new JButton( "   Ok   " );
        gui.addButton( ggCancel, GG_CANCEL, this );
        con.weightx		= 0.1;
        gui.addLabel( new JLabel( "      " ));
        con.weightx		= 0.0;
        con.gridwidth	= GridBagConstraints.REMAINDER;
        gui.addButton( ggOk, GG_OK, this );

        addWindowListener( new WindowAdapter() {
            public void windowClosing( WindowEvent e )
            {
                quit( -1 );
            }
        });

        getContentPane().add( gui );
        pack();
        Dimension d1 = getSize();
        Dimension d2 = Toolkit.getDefaultToolkit().getScreenSize();
        setLocation( (d2.width - d1.width) >> 1, (d2.height - d1.height) >> 1 );
//		addKeyListener( this );
//		requestFocus();

        super.initDialog();

        setVisible( true );
    }

    protected void quit( int choice )
    {
        chosen = choice;
        setVisible( false );
        dispose();
    }

    /**
     *	liefert das Auswahlergebnis
     *
     *	@return	Item Nummer von links nach rechts beginnend bei 0
     */
    public int getList()
    {
        return chosen;
    }

// -------- Action Listener methods  --------

    public void actionPerformed( ActionEvent e )
    {
        switch( gui.getItemID( e )) {
        case GG_OK:
            quit( ggList.getSelectedIndex() );
            break;
        case GG_CANCEL:
            quit( -1 );
            break;
        }
    }

// -------- Item Listener methods --------
/*
    public void itemStateChanged( ItemEvent e )
    {
        // nothing XXX
    }*/
}