[Qt-interest] customized painting for QPlainTextEdit

[Cristian]

I figured it out

I had to call

QPainter(viewport());
....




Cristian wrote:
> Hi there,
> 
> I try to create some customized widgets that display a small marker in
> the left upper corner (to mark mandatory input required)
> I was successfull in reimplementing QLineEdit::paintEvent and
> QComboBox::paintEvent but it simply doesn't work for QPlainTextEdit
> 
> For some reason nothing happens on the widget (paintEvent gets called
> but nothing is drawn)
> 
> this is the paintEvent body. The same code WORKS for QLineEdit and
> QComboBox... :-(
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> void CMyPlainTextEdit::paintEvent (QPaintEvent * event )
> {
>   QPlainTextEdit::paintEvent(event);
> 
>   if (!m_bMandatory)
> 	return;
> 
>   //draw a small cross for mandatory fields
>   QPainter painter(this);
>   QBrush br(QColor(255,0,0));
>   painter.setBrush(br);
>   painter.drawRect(0, 0, 5, 5);
> 
>   QPen pen(QColor(255,255,255));
>   painter.setPen(pen);
>   painter.drawLine(0, 0, 5, 5);
>   painter.drawLine(0, 5, 5, 0);
> }