1 | #ifndef BOOST_STATECHART_STATE_HPP_INCLUDED |
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2 | #define BOOST_STATECHART_STATE_HPP_INCLUDED |
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3 | ////////////////////////////////////////////////////////////////////////////// |
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4 | // Copyright 2002-2006 Andreas Huber Doenni |
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5 | // Distributed under the Boost Software License, Version 1.0. (See accompany- |
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6 | // ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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7 | ////////////////////////////////////////////////////////////////////////////// |
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8 | |
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9 | |
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10 | |
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11 | #include <boost/statechart/simple_state.hpp> |
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12 | |
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13 | #include <boost/mpl/list.hpp> |
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14 | |
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15 | |
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16 | |
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17 | namespace boost |
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18 | { |
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19 | namespace statechart |
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20 | { |
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21 | |
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22 | |
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23 | |
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24 | template< class MostDerived, |
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25 | class Context, |
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26 | class InnerInitial = mpl::list<>, |
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27 | history_mode historyMode = has_no_history > |
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28 | class state : public simple_state< |
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29 | MostDerived, Context, InnerInitial, historyMode > |
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30 | { |
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31 | typedef simple_state< MostDerived, Context, InnerInitial, historyMode > |
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32 | base_type; |
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33 | |
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34 | protected: |
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35 | ////////////////////////////////////////////////////////////////////////// |
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36 | struct my_context |
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37 | { |
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38 | my_context( typename base_type::context_ptr_type pContext ) : |
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39 | pContext_( pContext ) |
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40 | { |
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41 | } |
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42 | |
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43 | typename base_type::context_ptr_type pContext_; |
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44 | }; |
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45 | |
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46 | typedef state my_base; |
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47 | |
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48 | state( my_context ctx ) |
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49 | { |
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50 | this->set_context( ctx.pContext_ ); |
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51 | } |
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52 | |
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53 | ~state() {} |
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54 | |
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55 | public: |
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56 | ////////////////////////////////////////////////////////////////////////// |
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57 | // The following declarations should be private. |
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58 | // They are only public because many compilers lack template friends. |
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59 | ////////////////////////////////////////////////////////////////////////// |
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60 | // See base class for documentation |
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61 | typedef typename base_type::outermost_context_base_type |
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62 | outermost_context_base_type; |
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63 | typedef typename base_type::inner_context_ptr_type inner_context_ptr_type; |
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64 | typedef typename base_type::context_ptr_type context_ptr_type; |
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65 | typedef typename base_type::inner_initial_list inner_initial_list; |
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66 | |
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67 | static void initial_deep_construct( |
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68 | outermost_context_base_type & outermostContextBase ) |
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69 | { |
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70 | deep_construct( &outermostContextBase, outermostContextBase ); |
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71 | } |
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72 | |
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73 | // See base class for documentation |
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74 | static void deep_construct( |
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75 | const context_ptr_type & pContext, |
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76 | outermost_context_base_type & outermostContextBase ) |
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77 | { |
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78 | const inner_context_ptr_type pInnerContext( |
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79 | shallow_construct( pContext, outermostContextBase ) ); |
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80 | base_type::template deep_construct_inner< inner_initial_list >( |
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81 | pInnerContext, outermostContextBase ); |
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82 | } |
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83 | |
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84 | static inner_context_ptr_type shallow_construct( |
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85 | const context_ptr_type & pContext, |
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86 | outermost_context_base_type & outermostContextBase ) |
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87 | { |
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88 | const inner_context_ptr_type pInnerContext( |
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89 | new MostDerived( my_context( pContext ) ) ); |
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90 | outermostContextBase.add( pInnerContext ); |
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91 | return pInnerContext; |
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92 | } |
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93 | }; |
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94 | |
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95 | |
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96 | |
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97 | } // namespace statechart |
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98 | } // namespace boost |
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99 | |
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100 | |
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101 | |
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102 | #endif |
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