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/usr/include/choreonoid-1.1/cnoid/src/Base/ButtonGroup.h is in libcnoid-dev 1.1.0+dfsg-6.1+b4.

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/**
   @author Shin'ichiro Nakaoka
*/

#ifndef CNOID_GUIBASE_BUTTON_GROUP_H_INCLUDED
#define CNOID_GUIBASE_BUTTON_GROUP_H_INCLUDED

#include <cnoid/SignalProxy>
#include <QButtonGroup>
#include "exportdecl.h"

namespace cnoid {

    class CNOID_EXPORT ButtonGroup : public QButtonGroup
    {
        Q_OBJECT

      public:
        ButtonGroup(QObject* parent = 0);

        inline SignalProxy< boost::signal<void(int id)> > sigButtonClicked() {
            return sigButtonClicked_;
        }

      private Q_SLOTS:
        void onButtonClicked(int id);

      private:
        boost::signal<void(int id)> sigButtonClicked_;
    };
}

#endif