Re: rotate text help

[Justin Noel]

Amend that last post.  Since you are in QCanvasRectangle you should be given an 
already setup painter pointer via the drawShape() method. That will be called 
anytime your item needs drawing.  Much like paintEvent.

--Justin


-----Original Message-----

From:  jeep@xxxxxxxxx (Jeff Lacki)
Subj:  Re: rotate text help
Date:  Sun Mar 26, 2006 11:21 am
Size:  1K
To:  bradh@xxxxxxxxxxxxx, qt-interest@xxxxxxxxxxxxx

Thanks for that insights :)

Yes, I created the painter in a subclass of Q3CanvasRectangle:

    QString text("Testing");
    RotatedText *rt = new RotatedText(text,canvas);
    QPainter p;
    rt->draw(p);

And the draw method:

void
RotatedText::draw(QPainter &p)
{
    p.save();
    p.rotate(90);
    p.translate(-x(), -y());
    p.translate(y(), -x());

    // Have the base class draw it
    Q3CanvasText::draw(p);
    p.restore();
}

Produces the following:

QPainter::save(), painter not active
QPainter::setMatrix(), painter not active 
QPainter::setMatrix(), painter not active 
QPainter::setMatrix(), painter not active 
Segmentation fault

I forgot to ask how to fix the 'painter not active' message?
I looked at the source code and couldnt find where IsActive()
actually gets set to active, though I didnt do a strong search.

Jeff

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