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util-event: Template event handler class

This commit is contained in:
Michael Fabian 'Xaymar' Dirks 2018-11-08 08:07:49 +01:00
parent 6216311827
commit 79daeb5a75
3 changed files with 87 additions and 0 deletions
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2
CMakeLists.txt
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@ -264,6 +264,8 @@ SET(PROJECT_PRIVATE
"${PROJECT_SOURCE_DIR}/source/strings.h" "${PROJECT_SOURCE_DIR}/source/strings.h"
"${PROJECT_SOURCE_DIR}/source/utility.h" "${PROJECT_SOURCE_DIR}/source/utility.h"
"${PROJECT_SOURCE_DIR}/source/utility.cpp" "${PROJECT_SOURCE_DIR}/source/utility.cpp"
"${PROJECT_SOURCE_DIR}/source/util-event.hpp"
"${PROJECT_SOURCE_DIR}/source/util-event.cpp"
"${PROJECT_SOURCE_DIR}/source/util-math.h" "${PROJECT_SOURCE_DIR}/source/util-math.h"
"${PROJECT_SOURCE_DIR}/source/util-math.cpp" "${PROJECT_SOURCE_DIR}/source/util-math.cpp"
"${PROJECT_SOURCE_DIR}/source/util-memory.h" "${PROJECT_SOURCE_DIR}/source/util-memory.h"

20
source/util-event.cpp Normal file
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@ -0,0 +1,20 @@
/*
* Modern effects for a modern Streamer
* Copyright (C) 2017 Michael Fabian Dirks
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "util-event.hpp"

65
source/util-event.hpp Normal file
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@ -0,0 +1,65 @@
/*
* Modern effects for a modern Streamer
* Copyright (C) 2017 Michael Fabian Dirks
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#pragma once
#include <functional>
#include <list>
namespace util {
template<typename... _args>
class event {
std::list<std::function<void(_args...)>> listeners;
public:
void add(std::function<void(_args...)> listener)
{
listeners.push_back(listener);
}
void remove(std::function<void(_args...)> listener)
{
listeners.remove(listener);
}
// Not valid without the extra template.
template<typename... _largs>
void operator()(_args... args)
{
for (auto& l : listeners) {
l(args...);
}
}
operator bool()
{
return !listeners.empty();
}
public:
bool empty()
{
return listeners.empty();
}
void clear()
{
listeners.clear();
}
};
}; // namespace util