#ifndef TEXTARTINTERFACE_H#define TEXTARTINTERFACE_Hclass QBrush;class QFont;class QPen;class QPixmap;class QSize;class QString;class QStringList;class TextArtInterface{public:    virtual ~TextArtInterface() { }    virtual QStringList effects() const = 0;    virtual QPixmap applyEffect(const QString &effect,                                const QString &text,                                const QFont &font, const QSize &size,                                const QPen &pen,                                const QBrush &brush) = 0;};Q_DECLARE_INTERFACE(TextArtInterface,                    "com.software-inc.TextArt.TextArtInterface/1.0")#endif