Windows-4.7.4/src/gui/painting/qgraphicssystemplugin_p.h

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#ifndef QGRAPHICSSYSTEMPLUGIN_H
#define QGRAPHICSSYSTEMPLUGIN_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QtCore/qplugin.h>
#include <QtCore/qfactoryinterface.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

class QGraphicsSystem;

struct QGraphicsSystemFactoryInterface : public QFactoryInterface
{
    virtual QGraphicsSystem *create(const QString &key) = 0;
};

#define QGraphicsSystemFactoryInterface_iid "com.trolltech.Qt.QGraphicsSystemFactoryInterface"

Q_DECLARE_INTERFACE(QGraphicsSystemFactoryInterface, QGraphicsSystemFactoryInterface_iid)

class Q_GUI_EXPORT QGraphicsSystemPlugin : public QObject, public QGraphicsSystemFactoryInterface
{
    Q_OBJECT
    Q_INTERFACES(QGraphicsSystemFactoryInterface:QFactoryInterface)
public:
    explicit QGraphicsSystemPlugin(QObject *parent = 0);
    ~QGraphicsSystemPlugin();

    virtual QStringList keys() const = 0;
    virtual QGraphicsSystem *create(const QString &key) = 0;
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QGRAPHICSSYSTEMEPLUGIN_H