qxobjectpool.h

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#ifndef QXOBJECTPOOL_H
#define QXOBJECTPOOL_H
 
#include "qxplugin_global.h"
 
#include <QtCore/QList>
#include <QtCore/QObject>
#include <QtCore/QPointer>
#include <QtCore/QString>
 
QX_PLUGIN_BEGIN_NAMESPACE
 
class QX_PLUGIN_EXPORT QxObjectPool : public QObject
{
    Q_OBJECT
public:
    explicit QxObjectPool(QObject *parent = Q_NULLPTR);
    ~QxObjectPool() override;
 
    void addObject(QObject *object);
    void removeObject(QObject *object);
 
    QList<QObject *> objects() const;
    QObject *objectByName(const QString &name) const;
 
    template <typename T> T *object() const
    {
        const QList<QObject *> all = objects();
        for (QObject *candidate : all) {
            if (T *match = qobject_cast<T *>(candidate))
                return match;
        }
        return Q_NULLPTR;
    }
 
Q_SIGNALS:
    void objectAdded(QObject *object);
    void aboutToRemoveObject(QObject *object);
private:
    Q_DISABLE_COPY(QxObjectPool)
    QList<QPointer<QObject>> m_objects;
};
 
QX_PLUGIN_END_NAMESPACE
 
#endif   // QXOBJECTPOOL_H