root/extra_lib/include/avcap/linux/V4L2_ButtonControl.h

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/*
 * (c) 2005, 2008 Nico Pranke <Nico.Pranke@googlemail.com>, Robin Luedtke <RobinLu@gmx.de> 
 *
 * This file is part of avcap.
 *
 * avcap 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.
 *
 * avcap 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 avcap.  If not, see <http://www.gnu.org/licenses/>.
 */

/* avcap is free for non-commercial use.
 * To use it in commercial endeavors, please contact Nico Pranke <Nico.Pranke@googlemail.com>.
 */


#ifndef V4L2_BUTTONCONTROL_H_
#define V4L2_BUTTONCONTROL_H_

#include "V4L2_ControlBase.h"

namespace avcap
{
        class V4L2_DeviceDescriptor;
        
        //! A control for a Video4Linux2 device that performs an action when set, independently from the value.
        
        class V4L2_ButtonControl: public ButtonControl
        {
        private:
                V4L2_ControlBase        mControlBase;

        public:
                inline V4L2_ButtonControl(V4L2_DeviceDescriptor *dd, struct v4l2_queryctrl* query): 
                        mControlBase(dd, query)
                        {}

                virtual inline ~V4L2_ButtonControl()
                        {}
                
                virtual inline int push()
                        { return setValue(0); }
                
                virtual inline int getId() const
                        { return mControlBase.getId(); }
        
                virtual inline int getDefaultValue() const
                        { return mControlBase.getDefaultValue(); }
        
                virtual inline const std::string& getName() const
                        { return mControlBase.getName(); }
        
                virtual inline int setValue(int val)
                        { return mControlBase.setValue(val); }
        
                virtual inline int getValue() const
                        { return mControlBase.getValue(); }
                
                virtual inline int reset() 
                        { return mControlBase.reset(); }
        };
}

#endif // V4L2_BUTTONCONTROL_H_
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