genesis-3d_engine/Engine/app/appframework/statehandler.cc

/****************************************************************************
Copyright (c) 2003,Radon Labs GmbH
Copyright (c) 2011-2013,WebJet Business Division,CYOU
 
http://www.genesis-3d.com.cn

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#include "stdneb.h"
#include "appframework/statehandler.h"

namespace App
{
__ImplementClass(App::StateHandler, 'APST', Core::RefCounted);

//------------------------------------------------------------------------------
/**
*/
StateHandler::StateHandler()
{
    // empty
}

//------------------------------------------------------------------------------
/**
*/
StateHandler::~StateHandler()
{
    // empty
}

//------------------------------------------------------------------------------
/**
    This method is called when the state handler is attached to the App object.
    One-time inits should be done here.
*/
void
StateHandler::OnAttachToApplication()
{
    // empty
}

//------------------------------------------------------------------------------
/**
    This method is called when the state handler is removed from
    the App object.
*/
void
StateHandler::OnRemoveFromApplication()
{
    // empty
}

//------------------------------------------------------------------------------
/**
    This method is called when the state associated with this state handler
    is entered. The parameter indicates the previously active state.

    @param  prevState   previous state
*/
void
StateHandler::OnStateEnter(const Util::String& prevState)
{
    // empty
}

//------------------------------------------------------------------------------
/**
    This method is called when the state associated with this state handler
    is left. The parameter indicates the next active state.

    @param  nextState   next state
*/
void
StateHandler::OnStateLeave(const Util::String& nextState)
{
    // empty
}

//------------------------------------------------------------------------------
/**
    This method is called on the current application state after the 
    database is opened and before entities are loaded. You can use this
    method to setup managers which depend on a valid database.
*/
void
StateHandler::OnLoadBefore()
{
    // empty
}

//------------------------------------------------------------------------------
/**
    This method is called on the current application state after entities 
    have been loaded. You can use this method to setup managers which depend 
    on loaded entities.
*/
void
StateHandler::OnLoadAfter()
{
    // empty
}

//------------------------------------------------------------------------------
/**
    This method is called once a frame while the state is active. The method
    must return a state identifier. If this is different from the current
    state, a state switch will occur after the method returns. This method
    MUST be overriden by subclasses.

    @return     a state identifier
*/
Util::String
StateHandler::OnFrame()
{
    return "";
}

} // namespace Application