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/* vim:set et ts=4 sts=4:
*
* ibus-libpinyin - Intelligent Pinyin engine based on libpinyin for IBus
*
* Copyright (c) 2008-2010 Peng Huang <shawn.p.huang@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __PY_SIGNAL_H_
#define __PY_SIGNAL_H_
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef __GXX_EXPERIMENTAL_CXX0X__
# include <functional>
namespace PY {
using namespace std::placeholders;
// implement signal templates
template<typename R = void,
typename T1 = void,
typename T2 = void,
typename T3 = void>
struct signal
{
};
template<typename R, typename T1, typename T2, typename T3>
struct signal< R(), T1, T2, T3>
{
typedef std::function<R()> func_type;
void connect (func_type f) { m_func = f; }
R operator ()() const { m_func (); }
private:
func_type m_func;
};
template<typename R, typename T1, typename T2, typename T3>
struct signal< R(T1), T2, T3>
{
typedef std::function<R(T1)> func_type;
void connect (func_type f) { m_func = f; }
R operator ()(T1 a1) const { return m_func (a1); }
private:
func_type m_func;
};
template<typename R, typename T1, typename T2, typename T3>
struct signal< R(T1, T2), T3>
{
typedef std::function<R(T1, T2)> func_type;
void connect (func_type f) { m_func = f; }
R operator ()(T1 a1, T2 a2) const { return m_func (a1, a2); }
private:
func_type m_func;
};
template<typename R, typename T1, typename T2, typename T3>
struct signal< R(T1, T2, T3)>
{
typedef std::function<R(T1, T2, T3)> func_type;
void connect (func_type f) {m_func = f; }
R operator ()(T1 a1, T2 a2, T3 a3) const { return m_func (a1, a2, a3); }
private:
func_type m_func;
};
};
#else // __GXX_EXPERIMENTAL_CXX0X__
# include <boost/signals2.hpp>
# include <boost/bind.hpp>
namespace std {
// import boost::bind into std namespace
using boost::bind;
};
namespace PY {
// use boost::signal2
namespace bs2 = boost::signals2;
template <typename Signature>
struct signal : public bs2::signal_type
<Signature, bs2::keywords::mutex_type<bs2::dummy_mutex> >::type { };
};
#endif // __GXX_EXPERIMENTAL_CXX0X__
#endif // __PY_SIGNAL_H_
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