diff -r 8b2d6d0384b0 -r d9aefe59d544 camerauis/cameraxui/cxengine/inc/cxestate.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/camerauis/cameraxui/cxengine/inc/cxestate.h Fri Apr 16 14:51:30 2010 +0300 @@ -0,0 +1,72 @@ +/* +* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of "Eclipse Public License v1.0" +* which accompanies this distribution, and is available +* at the URL "http://www.eclipse.org/legal/epl-v10.html". +* +* Initial Contributors: +* Nokia Corporation - initial contribution. +* +* Contributors: +* +* Description: +* +*/ + +#ifndef CXESTATE_H +#define CXESTATE_H + +#include + +/** +* CxeState represents one unique state in a finite state machine. +* @sa CxeStateMachine +*/ +class CxeState +{ +public: + /** + * Constructor. + * + * @param stateId Integer ID for this state. Note that this must be unique + * and a power of two. This is needed so we can combine + * state IDs using bitwise or. + * @param stateName Name for this state (used for debug prints) + * @param allowedNextStates Bitmask of allowed next states. + */ + CxeState(int stateId, const char* stateName, int allowedNextStates); + + virtual ~CxeState(); + + /** + * Get the state ID of the state. + * @return State ID + */ + int stateId() const; + + /** + * Get the allowed state transitions + * @return A bitmask of state IDs which are considered valid next states after this state. + */ + int allowedNextStates() const; + + /** + * Get the name of this state + * @return Name of this state. + */ + QString name() const; + +private: + //! State name (for debug prints) + QString mName; + + //! ID of this state + int mId; + + //! Bitmask of allowed states + int mAllowedNextStates; +}; + +#endif // CXESTATE_H