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https://bitbucket.org/librepilot/librepilot.git
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7195862d77
This will allow us to build a parent project for qt-creator that sits above both openpilotgcs and uavobjgenerator so that we can build both projects at the same time. git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2528 ebee16cc-31ac-478f-84a7-5cbb03baadba
131 lines
3.6 KiB
C++
131 lines
3.6 KiB
C++
/**
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******************************************************************************
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*
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* @file aggregate.h
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* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
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* Parts by Nokia Corporation (qt-info@nokia.com) Copyright (C) 2009.
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* @brief
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* @see The GNU Public License (GPL) Version 3
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* @defgroup
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* @{
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*
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*****************************************************************************/
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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 3 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, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef QAGGREGATION_H
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#define QAGGREGATION_H
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#include "aggregation_global.h"
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#include <QtCore/QObject>
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#include <QtCore/QList>
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#include <QtCore/QHash>
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#include <QtCore/QReadWriteLock>
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#include <QtCore/QReadLocker>
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namespace Aggregation {
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class AGGREGATION_EXPORT Aggregate : public QObject
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{
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Q_OBJECT
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public:
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Aggregate(QObject *parent = 0);
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virtual ~Aggregate();
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void add(QObject *component);
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void remove(QObject *component);
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template <typename T> T *component() {
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QReadLocker(&lock());
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foreach (QObject *component, m_components) {
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if (T *result = qobject_cast<T *>(component))
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return result;
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}
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return (T *)0;
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}
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template <typename T> QList<T *> components() {
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QReadLocker(&lock());
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QList<T *> results;
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foreach (QObject *component, m_components) {
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if (T *result = qobject_cast<T *>(component)) {
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results << result;
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}
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}
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return results;
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}
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static Aggregate *parentAggregate(QObject *obj);
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static QReadWriteLock &lock();
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private slots:
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void deleteSelf(QObject *obj);
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private:
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static QHash<QObject *, Aggregate *> &aggregateMap();
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QList<QObject *> m_components;
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};
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// get a component via global template function
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template <typename T> T *query(Aggregate *obj)
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{
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if (!obj)
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return (T *)0;
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return obj->template component<T>();
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}
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template <typename T> T *query(QObject *obj)
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{
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if (!obj)
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return (T *)0;
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T *result = qobject_cast<T *>(obj);
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if (!result) {
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QReadLocker(&lock());
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Aggregate *parentAggregation = Aggregate::parentAggregate(obj);
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result = (parentAggregation ? query<T>(parentAggregation) : 0);
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}
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return result;
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}
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// get all components of a specific type via template function
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template <typename T> QList<T *> query_all(Aggregate *obj)
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{
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if (!obj)
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return QList<T *>();
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return obj->template components<T>();
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}
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template <typename T> QList<T *> query_all(QObject *obj)
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{
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if (!obj)
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return QList<T *>();
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QReadLocker(&lock());
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Aggregate *parentAggregation = Aggregate::parentAggregate(obj);
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QList<T *> results;
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if (parentAggregation)
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results = query_all<T>(parentAggregation);
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else if (T *result = qobject_cast<T *>(obj))
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results.append(result);
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return results;
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}
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} // namespace Aggregation
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#endif // QAGGREGATION_H
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