menu.hpp

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// Copyright (c) 2017, 2018 Kolya Kosenko
 
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
 
 
#ifndef BOOST_UI_MENU_HPP
#define BOOST_UI_MENU_HPP
 
#include <boost/ui/config.hpp>
 
#ifdef BOOST_HAS_PRAGMA_ONCE
#pragma once
#endif
 
#include <boost/ui/widget.hpp>
#include <boost/ui/detail/shared_count.hpp>
#include <boost/ui/detail/event.hpp>
 
#include <boost/noncopyable.hpp>
 
namespace boost {
namespace ui    {
 
 
class BOOST_UI_DECL separator
{
};
 
class frame;
class menu;
 
 
class BOOST_UI_DECL menu_bar
{
    menu_bar();
    void create();
 
public:
    menu_bar(const menu_bar& other);
    ~menu_bar();
 
    menu_bar& append(const menu& i);
    menu_bar& operator<<(const menu& i)
        { return append(i); }
 
    typedef void* native_handle_type;
 
    native_handle_type native_handle() { return m_impl; }
    const native_handle_type native_handle() const { return m_impl; }
 
private:
    class native_impl;
    native_impl* m_impl;
 
#ifndef DOXYGEN
    friend class frame;
    friend class menu;
#endif
};
 
 
class BOOST_UI_DECL menu
{
public:
    class item;
 
    menu();
    ~menu();
 
    menu(const uistring& text);
 
    menu& append(const item& i);
    menu& operator<<(const item& i)
        { return append(i); }
 
    menu& append(const menu& i);
    menu& operator<<(const menu& i)
        { return append(i); }
 
    menu& append(const separator& i);
    menu& operator<<(const separator& i)
        { return append(i); }
 
    void popup(widget& w);
 
    typedef void* native_handle_type;
 
    native_handle_type native_handle() { return m_impl; }
    const native_handle_type native_handle() const { return m_impl; }
 
private:
    class native_impl;
    native_impl* m_impl;
 
    mutable detail::shared_count m_shared_count;
 
#ifndef DOXYGEN
    friend class menu_bar::native_impl;
#endif
};
 
 
class BOOST_UI_DECL menu::item : private boost::noncopyable
{
public:
    item(const uistring& text);
 
    BOOST_UI_DETAIL_HANDLER(press, item);
 
    typedef void* native_handle_type;
 
    native_handle_type native_handle() { return m_impl; }
    const native_handle_type native_handle() const { return m_impl; }
 
private:
    void on_press_raw(const boost::function<void()>& handler);
 
    class native_impl;
    native_impl* m_impl;
 
#ifndef DOXYGEN
    friend class menu;
#endif
};
 
} // namespace ui
} // namespace boost
 
#endif // BOOST_UI_MENU_HPP