[Qt-interest] Drawing rectangular

Yuvaraj R yuvaraj at ongobiz.com
Mon Sep 21 16:04:02 CEST 2009


Ya  you are correct..

Just till now i am playing with sip side..


Actually i am appending received chat messages in Text Browser..

I want to set the  some background from from address like skype chat..

like

Yuvaraj

 hi hello Qt

That's why i am struggling..


please help me


Thanks

Yuvaraj R
On Mon, Sep 21, 2009 at 6:27 PM, Ulf-Alexander v. Ceumern-Lindenstjerna <
ceumern at vrmagic.com> wrote:

> I don't get it. If you already have a QTextBrowser, why do you want to
> manually paint text onto it?
>
> QTextBrowser is made for displaying text and you should not have to paint
> the text yourself.
>
> If you want to paint everything yourself just subclass a plain QWidget and
> do everything by hand.
>
> Regards, Ulf
>
> Ps:
> Also, I suggest you read a good book about Qt programming or do the online
> tutorials, since your questions indicate that you have not done much work
> with Qt yet and literature and the tutorials are always a good place to
> start.
>
> > -----Original Message-----
> > From: qt-interest-bounces at trolltech.com [mailto:qt-interest-
> > bounces at trolltech.com] On Behalf Of Yuvaraj R
> > Sent: Monday, September 21, 2009 2:00 PM
> > To: Samuel Rødal
> > Cc: qt-interest
> > Subject: Re: [Qt-interest] Drawing rectangular
> >
> > Thanks redal
> >
> > I am going towards my goal..
> >
> > I want to paint the paticular text of text browser..
> >
> >
> > How can i acheive this one
> >
> >
> > Thanks
> >
> > Yuvaraj R
> >
> >
> > On Mon, Sep 21, 2009 at 4:17 PM, Samuel Rødal <sroedal at trolltech.com>
> > wrote:
> >
> >
> >       Yuvaraj R wrote:
> >
> >
> >               still i am not getting
> >
> >               i am getting following things in log
> >
> >
> >               QPainter::begin: Paint device returned engine == 0, type: 1
> >
> >               QPainter::drawRects: Painter not active
> >
> >               QPainter::end: Painter not active, aborted
> >
> >               QPainter::setPen: Painter not active
> >
> >               QPainter::drawRects: Painter not active
> >
> >
> >               Thanks
> >
> >
> >               Yuvaraj R
> >
> >
> >                  To call the base class paint event, your text browser
> > class' paint
> >                  event should look like this:
> >
> >
> >                  void text_browser::paintEvent(QPaintEvent *e)
> >                  {
> >                         QTextBrowser::paintEvent(e);
> >                         QPainter painter;
> >                         painter.setPen(Qt::red);
> >                         painter.drawRect(100,100,100,100);
> >                  }
> >
> >                  I don't think calling accept() makes any difference for
> > paint events.
> >
> >                  --
> >                  Samuel
> >
> >
> >
> >
> >       Right, that should have been QPainter painter(this); and not just
> > QPainter painter;
> >
> >       But another problem is that QTextBrowser is an abstract scroll
> > area, which means that its paint event actually paints into the
> > viewport widget, not into the widget itself.
> >
> >       Try "QPainter painter(viewport());" instead.
> >
> >       Refer to
> > http://doc.trolltech.com/4.5/qabstractscrollarea.html#details for more
> > information on QAbstractScrollArea.
> >
> >       --
> >       Samuel
> >
> >
>
>
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