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Qt-interest Archive, May 2008
Problem painting QGraphicsScene Background

Message 1 in thread

Hello,

I'm trying to reimplement drawBackground(...) of QGraphicsView. I want 
to draw an image( pixmap ) on the background.

void drawBackground( QPainter * painter, const QRectf & rect ) {
	i = QImage( (unsigned char*) m_rgbaPixmap, m_videoFrameWidth, 
m_videoFrameHeight, QImage::Format_RGB32 );
	painter->drawImage( rect, i );
}

unfortunately this results in a white background whenever the view is 
scaled, i.e., the painter is scaled already.

Thanks in advance,
Thomas

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