Nicola Mfb wrote:
>
> [...]
> So there is a problem in qtopia/arm or i'm missing again somethink.
> This is the reason why i asked you how should i do to have
> consistency beetween the two SDK (arm - x86). Howewer i installed my
> built /opt/Qtopia on the Freerunner to be sure i used the same
> toolkit, but the problems are the same.
>
>
> Hi Lorn! after a two day headache i finally found the problem. In
> Qtopiacore for arm qreal is a float while in i686fb qreal is double.
> I defined qreal as a float on i686 and recompiled it, and now i have the
> same paint horror on the desktop :)
> The following is a snippet that you can use to show how is simple to
> break a QPainterPath rendering in a QGraphicsScene/QGraphicsView:
>
> #include <QtopiaApplication>
> #include <QGraphicsView>
> #include <QGraphicsScene>
> #include <QGraphicsPathItem>
>
> int main ( int argc, char *argv[] )
> {
> qDebug ( "sizeof qreal is %d",sizeof ( qreal ) );
>
> QtopiaApplication app ( argc, argv );
> QGraphicsScene *qgs = new QGraphicsScene;
> QGraphicsView *qgv = new QGraphicsView ( qgs );
> qgv->showMaximized();
>
> QPainterPath *qpp = new QPainterPath;
>
> qpp->moveTo ( 18164355,12559962 );
> qpp->lineTo ( 18164319,12560006 );
> qpp->lineTo ( 18164273,12560058 );
> qpp->lineTo ( 18164262,12560068 );
> qpp->lineTo ( 18164253,12560074 );
> qpp->lineTo ( 18164242,12560080 );
> qpp->lineTo ( 18164232,12560085 );
> qpp->lineTo ( 18164222,12560093 );
> qpp->lineTo ( 18164221,12560106 );
> qpp->lineTo ( 18164224,12560112 );
> qpp->lineTo ( 18164231,12560113 );
> qpp->lineTo ( 18164239,12560112 );
>
> QGraphicsPathItem *p=new QGraphicsPathItem ( *qpp );
> QPen pen ( Qt::white );
> //pen.setWidthF(1.0); //UNCOMMENTING THIS BREAKS PAINTING
> p->setPen ( pen );
> qgs->addItem ( p );
>
> QRect r ( 18164355-qgv->width() /2,12559962-qgv->height()
> /2,qgv->width(),qgv->height() );
> qgv->setSceneRect ( r );
>
> return app.exec();
> }
>
> Run it twice toggling the pen.setWidthF line comment and you'll se wath
> i'm saying.
>
> Hoping this may help, i'd like to follow/contribute to further
> investigation on a bug tracking system, is there one for qtopia?
Yes there is. I think this would be a good one. thanks
http://trolltech.com/bugreport-form
--
Lorn 'ljp' Potter
Software Engineer, Systems Group, Trolltech, a Nokia company
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