root/extra_lib/include/avcap/linux/V4L2_MenuControl.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_MENUCONTROL_H_
#define V4L2_MENUCONTROL_H_

#include "V4L2_ControlBase.h"
#include "Control_avcap.h"

namespace avcap
{
        // forward declaration
        class V4L2_DeviceDescriptor;
        
        //! A Control for a Video4Linux2 device which has various menu-like items to choose from.
        
        class V4L2_MenuControl: public MenuControl
        {
        private:
                V4L2_ControlBase        mControlBase;
                ItemList                        mMenuItems;
                V4L2_DeviceDescriptor*  mDeviceDescriptor;
                
        public:
                //! The constructor.
                V4L2_MenuControl(V4L2_DeviceDescriptor *dd, struct v4l2_queryctrl* query);

                //! The destructor.
                virtual ~V4L2_MenuControl();
        
                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(); }

                virtual inline const ItemList& getItemList () 
                        { return mMenuItems; }

        private:
                void queryMenuItems();
        };
}

#endif //V4L2_MENUCONTROL_H_
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