opendocumentaction.java

It is all about project scheduling. GanttProject is a tool for creating a project schedule by means

/*
 * Created on 29.09.2003
 *
 */
package net.sourceforge.ganttproject.document;

import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;

import javax.swing.AbstractAction;
import javax.swing.KeyStroke;

/**
 * @author Michael Haeusler (michael at akatose.de)
 */
public class OpenDocumentAction extends AbstractAction {

    private Document document;

    private ActionListener listener;

    private static final int MENU_MASK = Toolkit.getDefaultToolkit()
            .getMenuShortcutKeyMask();

    private static final int[] SHORTCUT_KEYS = { KeyEvent.VK_F1,
            KeyEvent.VK_F2, KeyEvent.VK_F3, KeyEvent.VK_F4, KeyEvent.VK_F5,
            KeyEvent.VK_F6, KeyEvent.VK_F7, KeyEvent.VK_F8, KeyEvent.VK_F9,
            KeyEvent.VK_F10, KeyEvent.VK_F11, KeyEvent.VK_F12 };

    private static final int[] MNEMONIC_KEYS = { KeyEvent.VK_1, KeyEvent.VK_2,
            KeyEvent.VK_3, KeyEvent.VK_4, KeyEvent.VK_5, KeyEvent.VK_6,
            KeyEvent.VK_7, KeyEvent.VK_8, KeyEvent.VK_9 };

    /**
     * Creates a new action, that stores the specified document and invokes the
     * specified listener.
     */
    public OpenDocumentAction(int index, Document document,
            ActionListener listener) {
        super(index + ". " + document.getDescription());
        this.document = document;
        this.listener = listener;

        if (index < MNEMONIC_KEYS.length) {
            putValue(MNEMONIC_KEY, new Integer(MNEMONIC_KEYS[index - 1]));
        }

        if (index < SHORTCUT_KEYS.length)
            putValue(ACCELERATOR_KEY, KeyStroke.getKeyStroke(
                    SHORTCUT_KEYS[index - 1], MENU_MASK));
    }

    public void actionPerformed(ActionEvent e) {
        listener.actionPerformed(new ActionEvent(document, e.getID(), e
                .getActionCommand()));
    }

}