/*=========================================================================

  Library:   CTK
 
  Copyright (c) 2010  Kitware Inc.

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

      http://www.commontk.org/LICENSE

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
 
=========================================================================*/

#ifndef __ctkButtonGroup_h
#define __ctkButtonGroup_h

// Qt includes
#include <QButtonGroup>

// CTK includes
#include <ctkPimpl.h>

#include "CTKWidgetsExport.h"

class ctkButtonGroupPrivate;

///
/// The ctkButtonGroup class is a QButtonGroup that has a slightly
/// different behavior when exclusive. By default, a ctkButtonGroup is
/// exclusive. An exclusive ctkButtonGroup switches off the button that
///  was clicked if it was already checked.
class CTK_WIDGETS_EXPORT ctkButtonGroup : public QButtonGroup
{
  Q_OBJECT
public:
  explicit ctkButtonGroup(QObject *_parent = 0);

protected slots:
  void onButtonClicked(QAbstractButton * button);
  void onButtonPressed(QAbstractButton * button);

private:
  CTK_DECLARE_PRIVATE(ctkButtonGroup);
};

#endif