[qt4.1,win,g++] Using QPainter outside paintEvent()

[jacek]

Is this a normal widget or does it use OpenGL?

[jh]

it's a normal widget derived from qlabel:



class PaintTest : public QLabel
{

public:

PaintTest( const QString & text, QWidget * parent = 0, Qt::WFlags f = 0 )
: QLabel(text,parent,f)
{
setAttribute(Qt::WA_PaintOutsidePaintEvent,true);
}

protected:

void ppp()
{
QPainter p(this);
// setAttribute(Qt::WA_PaintOutsidePaintEvent,true);
QPen pen(Qt:ashLine);
pen.setColor(Qt::red);
// p.s0etCompositionMode(QPainter::CompositionMode_Xo r);
p.setPen( pen );
p.drawLine(QPoint(0,0),QPoint(50,70));
p.drawLine(0,0,100,100);
printf("jdhfjkdshfjkhds\n");
fflush(stdout);
}

void paintEvent(QPaintEvent *e)
{
QLabel:aintEvent(e);

QPainter p(this);
p.setPen(QColor(146, 146, 146));
p.drawRect(0, 0, width() - 5, height() - 5);

printf("paintEvent\n");
fflush(stdout);

}



virtual void mouseMoveEvent ( QMouseEvent * e )
{

setAttribute(Qt::WA_PaintOutsidePaintEvent, true);

QPainter p(this);
QPen pen;
pen.setColor(QColor(200,100,30));
p.setPen( pen );
p.drawLine(QPoint(0,0),e->pos());
p.drawLine(0,0,100,60);

// repaint(10,10,50,60);

printf("mouseMoveEvent\n");
fflush(stdout);

}

};

jh

[jacek]

It seems to work on my system (PLD Linux, Qt 4.1.0). See the attached image.

PS. Please, use [ code ] tags to make your code readable.

[jh]

hm ...
linux / win32 - OpSystem problem ?? strange.

if anybody gets this working on win32, let me know!

jh

[jacek]

linux / win32 - OpSystem problem ?

Yes, looks like a Qt bug.

http://www.trolltech.com/developer/t...entry&id=83522

[jh]

ok, so it's not due to my incompetence

i'll wait till 4.1.1

thanx for the hint.

jh