Fixes: NB#176530 - Progress bar with unknown duration uses lot of cpu
Fixes: NB#176530 - Progress bar with unknown duration uses lot of cpu

RevBy: Anna Gadomska, Tomas Junnonen
Details:
MScalableImage::draw(const QRect &rect, const QPoint& pixmapOffset, const QPixmap* pixmap, QPainter *painter) const
was rewritten.

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