#ifndef __SHORTCUT_HANDLER_H__
#define __SHORTCUT_HANDLER_H__

/*
  QtCurve (C) Craig Drummond, 2007 - 2010 craig.p.drummond@gmail.com

  ----

  This program 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.

  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; see the file COPYING.  If not, write to
  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  Boston, MA 02110-1301, USA.
*/

#include <qobject.h>
#include <qvaluelist.h>
#include <qevent.h>

class QWidget;

class ShortcutHandler : public QObject
{
  Q_OBJECT

public:

  explicit ShortcutHandler(QObject *parent = 0);
  virtual ~ShortcutHandler();

  bool hasSeenAlt(const QWidget *widget) const;
  bool isAltDown() const {
    return itsAltDown;
  }
  bool showShortcut(const QWidget *widget) const;

private slots:

  void widgetDestroyed(QObject *o);

protected:

  void updateWidget(QWidget *w);
  void setSeenAlt(QWidget *w);
  bool eventFilter(QObject *watched, QEvent *event);

private:

  bool                  itsAltDown;
  QValueList<QWidget *> itsSeenAlt,
             itsUpdated,
             itsOpenMenus;

};

#endif