类 QwtNullPaintDevice::PaintEngine 继承关系图:

Public 成员函数
virtual bool	begin (QPaintDevice *) override

virtual bool	end () override

virtual Type	type () const override

virtual void	updateState (const QPaintEngineState &) override

virtual void	drawRects (const QRect *, int) override

virtual void	drawRects (const QRectF *, int) override

virtual void	drawLines (const QLine *, int) override

virtual void	drawLines (const QLineF *, int) override

virtual void	drawEllipse (const QRectF &) override

virtual void	drawEllipse (const QRect &) override

virtual void	drawPath (const QPainterPath &) override

virtual void	drawPoints (const QPointF *, int) override

virtual void	drawPoints (const QPoint *, int) override

virtual void	drawPolygon (const QPointF *, int, PolygonDrawMode) override

virtual void	drawPolygon (const QPoint *, int, PolygonDrawMode) override

virtual void	drawPixmap (const QRectF &, const QPixmap &, const QRectF &) override

virtual void	drawTextItem (const QPointF &, const QTextItem &) override

virtual void	drawTiledPixmap (const QRectF &, const QPixmap &, const QPointF &s) override

virtual void	drawImage (const QRectF &, const QImage &, const QRectF &, Qt::ImageConversionFlags) override

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Public 成员函数