[Qt-interest] [SOLVED] Re: QPainter drawPixmap , wired image scale problem

[Aaron Lewis]

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On 04/17/2010 08:13 PM, Tilman Vogel wrote:
> Look at the documentation, e.g. with Qt Assistant (assistant):
> 
> QRectF ( qreal x, qreal y, qreal width, qreal height )
> 
> i.e. the last two parameters are not bottom/right but width/height.
> Your loop is producing larger and larger targets. That's must likely
> not what you want.

Oops , i take it as (x1,y1) and (x2,y2) , so bad.


> 
> You could consider to use just this overload for painting:
> 
> void QPainter::drawPixmap ( const QPoint & point, const QPixmap & pixmap )
> 
> which just needs the target origin and keeps original scale. Use
> QPixmap::{width,height}() for reading the sizes.
> 

I'd try with them.

Thanks Tilman ;-)


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Best Regards,
Aaron Lewis - PGP: 0x4A6D32A0
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