mirror of
https://github.com/clementine-player/Clementine
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127 lines
3.1 KiB
C++
127 lines
3.1 KiB
C++
/* This file is part of Clementine.
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Copyright 2011, David Sansome <me@davidsansome.com>
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Clementine 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 3 of the License, or
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(at your option) any later version.
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Clementine 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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You should have received a copy of the GNU General Public License
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along with Clementine. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef CLOSURE_H
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#define CLOSURE_H
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#include <tr1/functional>
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#include <QMetaMethod>
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#include <QObject>
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#include <boost/noncopyable.hpp>
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#include <boost/scoped_ptr.hpp>
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#include "core/logging.h"
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class ClosureArgumentWrapper {
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public:
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virtual ~ClosureArgumentWrapper() {}
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virtual QGenericArgument arg() const = 0;
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};
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template<typename T>
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class ClosureArgument : public ClosureArgumentWrapper {
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public:
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ClosureArgument(const T& data) : data_(data) {}
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virtual QGenericArgument arg() const {
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return Q_ARG(T, data_);
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}
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private:
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T data_;
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};
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class Closure : public QObject, boost::noncopyable {
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Q_OBJECT
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public:
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Closure(QObject* sender, const char* signal,
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QObject* receiver, const char* slot,
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const ClosureArgumentWrapper* val0 = 0,
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const ClosureArgumentWrapper* val1 = 0,
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const ClosureArgumentWrapper* val2 = 0);
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Closure(QObject* sender, const char* signal,
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std::tr1::function<void()> callback);
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private slots:
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void Invoked();
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void Cleanup();
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private:
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void Connect(QObject* sender, const char* signal);
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QMetaMethod slot_;
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std::tr1::function<void()> callback_;
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boost::scoped_ptr<const ClosureArgumentWrapper> val0_;
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boost::scoped_ptr<const ClosureArgumentWrapper> val1_;
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boost::scoped_ptr<const ClosureArgumentWrapper> val2_;
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};
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#define C_ARG(type, data) new ClosureArgument<type>(data)
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Closure* NewClosure(
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QObject* sender,
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const char* signal,
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QObject* receiver,
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const char* slot);
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template <typename T>
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Closure* NewClosure(
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QObject* sender,
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const char* signal,
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QObject* receiver,
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const char* slot,
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const T& val0) {
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return new Closure(
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sender, signal, receiver, slot,
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C_ARG(T, val0));
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}
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template <typename T0, typename T1>
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Closure* NewClosure(
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QObject* sender,
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const char* signal,
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QObject* receiver,
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const char* slot,
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const T0& val0,
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const T1& val1) {
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return new Closure(
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sender, signal, receiver, slot,
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C_ARG(T0, val0), C_ARG(T1, val1));
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}
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template <typename T0, typename T1, typename T2>
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Closure* NewClosure(
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QObject* sender,
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const char* signal,
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QObject* receiver,
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const char* slot,
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const T0& val0,
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const T1& val1,
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const T2& val2) {
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return new Closure(
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sender, signal, receiver, slot,
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C_ARG(T0, val0), C_ARG(T1, val1), C_ARG(T2, val2));
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}
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#endif // CLOSURE_H
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