1 #ifndef BOOST_STATECHART_STATE_HPP_INCLUDED

     2 #define BOOST_STATECHART_STATE_HPP_INCLUDED

     3 //////////////////////////////////////////////////////////////////////////////

     4 // Copyright 2002-2006 Andreas Huber Doenni

     5 // Distributed under the Boost Software License, Version 1.0. (See accompany-

     6 // ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

     7 //////////////////////////////////////////////////////////////////////////////

     8 

     9 

    10 

    11 #include <boost/statechart/simple_state.hpp>

    12 

    13 #include <boost/mpl/list.hpp>

    14 

    15 

    16 

    17 namespace boost

    18 {

    19 namespace statechart

    20 {

    21 

    22 

    23 

    24 template< class MostDerived,

    25           class Context,

    26           class InnerInitial = mpl::list<>,

    27           history_mode historyMode = has_no_history >

    28 class state : public simple_state<

    29   MostDerived, Context, InnerInitial, historyMode >

    30 {

    31   typedef simple_state< MostDerived, Context, InnerInitial, historyMode >

    32     base_type;

    33 

    34   protected:

    35     //////////////////////////////////////////////////////////////////////////

    36     struct my_context

    37     {

    38       my_context( typename base_type::context_ptr_type pContext ) :

    39         pContext_( pContext )

    40       {

    41       }

    42 

    43       typename base_type::context_ptr_type pContext_;

    44     };

    45 

    46     typedef state my_base;

    47 

    48     state( my_context ctx )

    49     {

    50       this->set_context( ctx.pContext_ );

    51     }

    52 

    53     ~state() {}

    54 

    55   public:

    56     //////////////////////////////////////////////////////////////////////////

    57     // The following declarations should be private.

    58     // They are only public because many compilers lack template friends.

    59     //////////////////////////////////////////////////////////////////////////

    60     // See base class for documentation

    61     typedef typename base_type::outermost_context_base_type

    62       outermost_context_base_type;

    63     typedef typename base_type::inner_context_ptr_type inner_context_ptr_type;

    64     typedef typename base_type::context_ptr_type context_ptr_type;

    65     typedef typename base_type::inner_initial_list inner_initial_list;

    66 

    67     static void initial_deep_construct(

    68       outermost_context_base_type & outermostContextBase )

    69     {

    70       deep_construct( &outermostContextBase, outermostContextBase );

    71     }

    72 

    73     // See base class for documentation

    74     static void deep_construct(

    75       const context_ptr_type & pContext,

    76       outermost_context_base_type & outermostContextBase )

    77     {

    78       const inner_context_ptr_type pInnerContext(

    79         shallow_construct( pContext, outermostContextBase ) );

    80       base_type::template deep_construct_inner< inner_initial_list >(

    81         pInnerContext, outermostContextBase );

    82     }

    83 

    84     static inner_context_ptr_type shallow_construct(

    85       const context_ptr_type & pContext,

    86       outermost_context_base_type & outermostContextBase )

    87     {

    88       const inner_context_ptr_type pInnerContext(

    89         new MostDerived( my_context( pContext ) ) );

    90       outermostContextBase.add( pInnerContext );

    91       return pInnerContext;

    92     }

    93 };

    94 

    95 

    96 

    97 } // namespace statechart

    98 } // namespace boost

    99 

   100 

   101 

   102 #endif