Andrzej Rybczak
14 years ago
parent
0cfe5d8f01
commit
5e8d1673e0
22 changed files with 297 additions and 220 deletions
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/***************************************************************************
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* Copyright (C) 2008-2012 by Andrzej Rybczak * |
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* electricityispower@gmail.com * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the * |
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* Free Software Foundation, Inc., * |
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * |
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***************************************************************************/ |
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#ifndef _PROXY_SONG_LIST |
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#define _PROXY_SONG_LIST |
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#include "menu.h" |
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#include "song.h" |
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class ProxySongList |
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{ |
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struct Interface |
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{ |
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virtual ~Interface() { } |
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virtual bool empty() = 0; |
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virtual size_t size() = 0; |
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virtual size_t choice() = 0; |
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virtual void highlight(size_t pos) = 0; |
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virtual bool isSelected(size_t pos) = 0; |
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virtual void setSelected(size_t pos, bool selected) = 0; |
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virtual MPD::Song *getSong(size_t pos) = 0; |
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virtual MPD::Song *currentSong() = 0; |
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}; |
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template <typename T, typename F> struct Impl : Interface |
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{ |
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typedef typename NC::Menu<T> Menu; |
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Impl(Menu &menu, F f) : m_menu(menu), m_song_getter(f) { } |
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virtual ~Impl() { } |
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virtual bool empty() { return m_menu.Empty(); } |
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virtual size_t size() { return m_menu.Size(); } |
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virtual size_t choice() { return m_menu.Choice(); } |
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virtual void highlight(size_t pos) { m_menu.Highlight(pos); } |
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virtual bool isSelected(size_t pos) { |
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return m_menu[pos].isSelected(); |
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} |
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virtual void setSelected(size_t pos, bool selected) { |
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m_menu[pos].setSelected(selected); |
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} |
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virtual MPD::Song *getSong(size_t pos) { |
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return m_song_getter(m_menu[pos]); |
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} |
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virtual MPD::Song *currentSong() { |
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if (!m_menu.Empty()) |
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return getSong(m_menu.Choice()); |
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else |
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return 0; |
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} |
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private: |
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Menu &m_menu; |
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F m_song_getter; |
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}; |
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std::shared_ptr<Interface> m_impl; |
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public: |
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template <typename T, typename F> |
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ProxySongList(typename NC::Menu<T> &menu, F f) : m_impl(new Impl<T, F>(menu, f)) { } |
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bool empty() { return m_impl->empty(); } |
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size_t size() { return m_impl->size(); } |
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size_t choice() { return m_impl->choice(); } |
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void highlight(size_t pos) { m_impl->highlight(pos); } |
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bool isSelected(size_t pos) { return m_impl->isSelected(pos); } |
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void setSelected(size_t pos, bool selected) { m_impl->setSelected(pos, selected); } |
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MPD::Song *getSong(size_t pos) { return m_impl->getSong(pos); } |
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MPD::Song *currentSong() { return m_impl->currentSong(); } |
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}; |
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template <typename T, typename F> |
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std::shared_ptr<ProxySongList> mkProxySongList(typename NC::Menu<T> &menu, F f) |
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{ |
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return std::make_shared<ProxySongList>(ProxySongList(menu, f)); |
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} |
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inline std::shared_ptr<ProxySongList> nullProxySongList() |
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{ |
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return std::shared_ptr<ProxySongList>(); |
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} |
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#endif |
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