/*

Copyright (C) 2012-2013 Richard Crozier

This file is part of Octave.

Octave 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 3 of the License, or (at your
option) any later version.

Octave 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 Octave; see the file COPYING.  If not, see
<http://www.gnu.org/licenses/>.

*/

#ifndef OCTAVEDOCKWIDGET_H
#define OCTAVEDOCKWIDGET_H

#include <QDockWidget>
//#include <QMenu>
//#include <QToolBar>

class octave_dock_widget : public QDockWidget
{
  Q_OBJECT

  public:
  octave_dock_widget (QWidget *p)
    : QDockWidget (p)
  {
    connect (this, SIGNAL (visibilityChanged (bool)),
             this, SLOT (handle_visibility_changed (bool)));

    connect (this, SIGNAL (topLevelChanged(bool)),
             this, SLOT(top_level_changed(bool)));
  }

  virtual ~octave_dock_widget () { }

signals:
  /** Custom signal that tells if a user has clicked away
   *  that dock widget, i.e the active dock widget has
   *  changed. */
  virtual void active_changed (bool active);

protected:
  virtual void closeEvent (QCloseEvent *e)
  {
    emit active_changed (false);
    QDockWidget::closeEvent (e);
  }

protected slots:

  /** Slot to steer changing visibility from outside. */
  virtual void handle_visibility_changed (bool visible)
  {
    if (visible)
      emit active_changed (true);
  }

  /** Slot when floating property changes */
  virtual void top_level_changed (bool floating)
  {
    if(floating)
      {
        setWindowFlags(Qt::Window);  // make a window from the widget when floating
        show();                      // make it visible again since setWindowFlags hides it
      }
  }

};

#endif // OCTAVEDOCKWIDGET_H