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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 |