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authorBent Bisballe Nyeng <deva@aasimon.org>2016-04-08 00:15:32 +0200
committerBent Bisballe Nyeng <deva@aasimon.org>2016-04-08 00:15:32 +0200
commit057ef1d83ba263fb2adf1aa86f8e281ab0065c43 (patch)
tree31c1f237e3a9df9fc241d87527f7dd4245665d43 /plugingui/notifier.h
parentb530ac02af61e320e137a392decef1b3cc5af2c4 (diff)
Refactoring to finally get rid of MessageHandler/Receiver in favor of the new Settings mechanism.
Diffstat (limited to 'plugingui/notifier.h')
-rw-r--r--plugingui/notifier.h163
1 files changed, 0 insertions, 163 deletions
diff --git a/plugingui/notifier.h b/plugingui/notifier.h
deleted file mode 100644
index 9e9f6eb..0000000
--- a/plugingui/notifier.h
+++ /dev/null
@@ -1,163 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/***************************************************************************
- * notifier.h
- *
- * Thu Sep 3 15:48:39 CEST 2015
- * Copyright 2015 Bent Bisballe Nyeng
- * deva@aasimon.org
- ****************************************************************************/
-
-/*
- * This file is part of DrumGizmo.
- *
- * DrumGizmo is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * DrumGizmo 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 Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with DrumGizmo; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- */
-#pragma once
-
-#include <functional>
-#include <vector>
-#include <map>
-#include <set>
-#include <memory>
-
-namespace aux
-{
- template<int>
- struct placeholder
- {
- };
-}
-
-namespace std
-{
- template<int N>
- struct is_placeholder<aux::placeholder<N>>
- : integral_constant<int, N+1>
- {
- };
-}
-
-namespace aux
-{
- // std::integer_sequence introduced in C++14 so remove this once we start requiring that.
-
- template<int... Ns>
- struct int_sequence
- {
- };
-
- template<int N, int... Ns>
- struct gen_int_sequence
- : gen_int_sequence<N-1, N-1, Ns...>
- {
- };
-
- template<int... Ns>
- struct gen_int_sequence<0, Ns...>
- : int_sequence<Ns...>
- {
- };
-};
-
-
-namespace GUI {
-
-class Listener;
-class NotifierBase {
-public:
- virtual void disconnect(Listener* object) {}
-};
-
-class Listener {
-public:
- virtual ~Listener()
- {
- for(auto signal : signals)
- {
- signal->disconnect(this);
- }
- }
-
- void registerNotifier(NotifierBase* signal)
- {
- signals.insert(signal);
- }
-
- void unregisterNotifier(NotifierBase* signal)
- {
- signals.erase(signal);
- }
-
-private:
- std::set<NotifierBase*> signals;
-};
-
-template<typename... Args>
-class Notifier : public NotifierBase {
-public:
- Notifier() {}
-
- //! \brief When dtor is called it will automatically disconnect all its listeners.
- ~Notifier()
- {
- for(auto& slot : slots)
- {
- slot.first->unregisterNotifier(this);
- }
- }
-
- using callback_type = std::function<void(Args...)>;
-
- //! \brief Connect object to this Notifier.
- template<typename O, typename F>
- void connect(O* p, const F& fn)
- {
- slots[p] = std::move(construct_mem_fn(fn, p, aux::gen_int_sequence<sizeof...(Args)>{}));
- if(p && dynamic_cast<Listener*>(p))
- {
- dynamic_cast<Listener*>(p)->registerNotifier(this);
- }
- }
-
- //! \brief Disconnect object from this Notifier.
- void disconnect(Listener* object)
- {
- slots.erase(object);
- }
-
- //! \brief Activate this notifier by pretending it is a function.
- //! Example: Notifier<int> foo; foo(42);
- void operator()(Args... args)
- {
- for(auto& slot : slots)
- {
- slot.second(args...);
- }
- }
-
-private:
- std::map<Listener*, callback_type> slots;
-
- template<typename F, typename O, int... Ns>
- callback_type construct_mem_fn(const F& fn, O* p, aux::int_sequence<Ns...>) const
- {
- return std::bind(fn, p, aux::placeholder<Ns>{}...);
- }
-
-};
-
-} // GUI::
-
-#define CONNECT(SRC, SIG, TAR, SLO) (SRC)->SIG.connect(TAR, SLO)