147 lines
4.4 KiB
C++
147 lines
4.4 KiB
C++
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/****************************************************************************
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** Copyright (c) 2006 - 2011, the LibQxt project.
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** See the Qxt AUTHORS file for a list of authors and copyright holders.
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** * Neither the name of the LibQxt project nor the
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** names of its contributors may be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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** DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**
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** <http://libqxt.org> <foundation@libqxt.org>
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*****************************************************************************/
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#ifndef QXTPOINTERLIST_H
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#define QXTPOINTERLIST_H
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#include <QList>
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#include <QObject>
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#include "qxtglobal.h"
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class QXT_CORE_EXPORT QxtPointerListDeleter : public QObject
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{
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Q_OBJECT
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protected:
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virtual void removeThisObject(QObject * obj) = 0;
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private Q_SLOTS:
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void removeSender();
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};
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template<class T>
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class QxtPointerList : public QxtPointerListDeleter, public QList<T*>
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{
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public:
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///constructs a new QxtPointerList
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QxtPointerList(): QList<T*>()
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{
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}
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///destructs the QxtPointerList
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~QxtPointerList()
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{
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QList<T*>::clear();
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}
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///\reimp
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QxtPointerList(const QxtPointerList<T> & other): QxtPointerListDeleter(), QList<T*>(other)
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{
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for (int i = 0;i < other.size();i++)
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{
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addThisObject(other.at(i));
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}
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}
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///\reimp
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void append(T* value)
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{
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addThisObject(value);
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QList<T*>::append(value);
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}
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///\reimp
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void insert(int i, T * value)
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{
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addThisObject(value);
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QList<T*>::insert(i, value);
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}
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///\reimp
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typename QList<T*>::iterator insert(typename QList<T*>::iterator before, T* value)
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{
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addThisObject(value);
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return QList<T*>::insert(before, value);
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}
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///\reimp
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QxtPointerList<T> operator+ (const QxtPointerList<T> & other) const
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{
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QxtPointerList<T> m = *this;
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m += other;
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return m;
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}
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///\reimp
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QxtPointerList<T> & operator+= (const QxtPointerList<T> & other)
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{
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Q_FOREACH(T*t, other)
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{
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*this << t;
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}
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return *this;
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}
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///\reimp
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QxtPointerList<T> & operator+= (T* value)
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{
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addThisObject(value);
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QList<T*>::operator+=(value);
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return *this;
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}
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///\reimp
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QxtPointerList<T> & operator<< (const QxtPointerList<T> & other)
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{
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*this += other;
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return *this;
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}
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///\reimp
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QxtPointerList<T> & operator<< (T* value)
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{
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*this += value;
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return *this;
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}
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///\reimp
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QxtPointerList<T> & operator= (const QxtPointerList<T> & other)
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{
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QList<T*>::clear();
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Q_FOREACH(T*t, other)
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{
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*this << t;
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}
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return *this;
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}
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protected:
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///reimplement to access objects before they are removed
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virtual void removeThisObject(QObject * obj)
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{
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removeAll(reinterpret_cast<T*>(obj));
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}
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///reimplement to access objects before they are added
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virtual void addThisObject(QObject * obj)
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{
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QObject::connect(obj, SIGNAL(destroyed(QObject *)), this, SLOT(removeSender()));
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}
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};
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#endif // QXTPOINTERLIST_H
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