YiStateMachine.h

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// © You i Labs Inc. 2000-2017. All rights reserved.
#ifndef _YI_STATE_MACHINE_H_
#define _YI_STATE_MACHINE_H_

#include "deprecated/YiState.h"
#include "signal/YiSignal.h"

class CYIEvent;
class CYIEventDispatcher;

namespace yi
{
namespace deprecated
{
class CYIStateMachinePriv;

typedef enum YI_STATEMACHINE_ERROR_ENUM {
    YI_STATEMACHINE_NO_ERROR = 0, 
    YI_STATEMACHINE_NOINITIALSTATE_ERROR, 
    YI_STATEMACHINE_NODEFAULTSTATE_ERROR, 
    YI_STATEMACHINE_NOCOMMONANCESTOR_ERROR, 
    YI_STATEMACHINE_THREAD_ERROR 

} YI_STATEMACHINE_ERROR;

typedef enum YI_STATEMACHINE_PRIORITY_ENUM {
    YI_STATEMACHINE_LOW = -1,
    YI_STATEMACHINE_NORMAL = 0,
    YI_STATEMACHINE_HIGH = 1

} YI_STATEMACHINE_PRIORITY;

class CYIStateMachine : public CYIState
{
public:
    CYIStateMachine(CYIState *parent = 0);
    virtual ~CYIStateMachine();

    bool Start();
    bool Stop();
    bool IsRunning();

    std::list<CYIAbstractState *> GetConfiguration();

    void PrintConfiguration();

    YI_STATEMACHINE_ERROR GetError();
    void ClearError();

    void PostEvent(std::unique_ptr<CYIEvent> e, YI_STATEMACHINE_PRIORITY priority = YI_STATEMACHINE_NORMAL);

    CYISignal<> Started;
    CYISignal<> Stopped;
};

} //namespace deprecated

} //namespace yi

#endif // _YI_STATE_MACHINE_H_