external_model.hpp

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/*
    Copyright 2013 Adobe
    Distributed under the Boost Software License, Version 1.0.
    (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
/**************************************************************************************************/
 
#ifndef ADOBE_EXTERNAL_MODEL_HPP
#define ADOBE_EXTERNAL_MODEL_HPP
 
#include <adobe/config.hpp>
 
#include <deque>
#include <functional>
#include <map>
 
#include <boost/signals2/signal.hpp>
 
#include <adobe/any_regular_fwd.hpp>
#include <adobe/name.hpp>
#include <adobe/string.hpp>
 
/**************************************************************************************************/
 
namespace adobe {
 
/**************************************************************************************************/

class external_model_t : boost::noncopyable {
public:
    using connection_t = boost::signals2::connection;
    using monitor_t = std::function<void(const any_regular_t&)>;
 
    void add_cell(name_t);
 
    std::size_t count(name_t) const;
    connection_t monitor(name_t name, const monitor_t& monitor);
    void set(name_t, const any_regular_t&);
 
    void model_monitor(name_t name, const monitor_t& monitor);
    void model_set(name_t, const any_regular_t&);
 
private:
    typedef boost::signals2::signal<void(const any_regular_t&)> monitor_list_t;
 
    struct cell_t {
        // empty copy and assignment - we don't move connections.
        cell_t() {}
        cell_t(const cell_t&) {}
        cell_t& operator=(const cell_t&) { return *this; }
 
        monitor_list_t monitor_m;
        monitor_t model_monitor_m;
    };
 
    typedef std::map<const char*, cell_t*, str_less_t> index_t;
 
    cell_t* lookup(name_t);
 
    index_t index_m;
    std::deque<cell_t> cell_set_m;
};
 
/**************************************************************************************************/
 
} // namespace adobe
 
/**************************************************************************************************/
 
#endif
 
/**************************************************************************************************/