libGizmod/AlsaEvent.hpp

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/*
  
  Copyright (c) 2007, Tim Burrell
  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.apache.org/licenses/LICENSE-2.0

  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 __AlsaEvent_h
#define __AlsaEvent_h

#if HAVE_CONFIG_H
#include "config.h"
#endif

#include <string>
#include <vector>
#include <alsa/asoundlib.h>
#include <boost/shared_ptr.hpp>
#include <boost/archive/text_oarchive.hpp>
#include <boost/archive/text_iarchive.hpp>
#include <boost/serialization/base_object.hpp>

// Namespace

namespace Gizmod {

// Typedefs

typedef enum {
        ALSAEVENT_ERROR,
        ALSAEVENT_SOUNDCARD_ATTACH,
        ALSAEVENT_SOUNDCARD_DETACH,
        ALSAEVENT_MIXERELEMENT_ATTACH,
        ALSAEVENT_MIXERELEMENT_CHANGE,
        ALSAEVENT_MIXERELEMENT_DETACH
} AlsaEventType;

// AlsaEvent Class Definition

class AlsaEvent {
public: 
        // public member variables
        AlsaEventType                   Type;                           
        unsigned int                    Mask;                           
        
        // event variables
        bool                            IsActiveChanged;                
        bool                            ElementsChanged;                
        bool                            VolumePlaybackChanged;          
        bool                            VolumeCaptureChanged;           
        bool                            SwitchPlaybackChanged;          
        bool                            SwitchCaptureChanged;           
                
        // public functions

        // construction / deconstruction
        AlsaEvent();
        AlsaEvent(AlsaEventType type, unsigned int mask = 0);
        AlsaEvent(AlsaEvent const & Event);
        virtual ~AlsaEvent();

private:
        // private functions
                
        // private member variables

private: 
        // serialization
        friend class boost::serialization::access;
        template<class Archive>
        void serialize(Archive & ar, const unsigned int version) {
                ar & Type;
                ar & Mask;
                ar & IsActiveChanged;
                ar & ElementsChanged;
                ar & VolumePlaybackChanged;
                ar & VolumeCaptureChanged;
                ar & SwitchPlaybackChanged;
                ar & SwitchCaptureChanged;                      
        }                       
};


} // Gizmod namespace

#endif // __AlsaEvent_h

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