background painting in the Scene

[maverick_pol]

Hi,

I have a question about some painter behaviour.
I have overloaded the the drawBackground for my scene. When a user sets m_draw flag to true some text should be drawn:

void		GScene::drawBackground(QPainter *painter, const QRectF	&rect)
{
  ....some drawing
  if(m_draw)
     {
           painter->drawText(QPointF(0,0),"Text");
     }
}

void		GScene::drawBackground(QPainter *painter, const QRectF	&rect)
{
  ....some drawing
  if(m_draw)
     {
           painter->drawText(QPointF(0,0),"Text");
     }
}

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But the "Text" is not drawn. When I invalidate the scene and (m_draw==TRUE), while debugging, I see that the code is invoked, but nothing is drawn. In the console nothing is printed, no warning, no error.

Thanks for any help.

P.S.

I have also tried this, and it works...

....
			if(1)
			{
				if(1)
				{
					painter->drawText(QPointF(0,0),"Text2");
				}
			}
.....

....
			if(1)
			{
				if(1)
				{
					painter->drawText(QPointF(0,0),"Text2");
				}
			}
.....

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[marcel]

What color are the text and the background?
Maybe the scene coordinate (0,0) is outside the view...

[maverick_pol]

Hi,

For 100% the color is ok. To proove it I have done this and get the "Text1" at the (0,0), but still no text2.

....
painter->drawText(QPointF(0,0),"TExt1");
if(m_draw) /(*!< m_draw for 100% equals true*/
{
painter->drawText(QPointF(0,0),"Text2");
}
....

....
painter->drawText(QPointF(0,0),"TExt1");
if(m_draw) /(*!< m_draw for 100% equals true*/
{
painter->drawText(QPointF(0,0),"Text2");
}
....

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That's a bit strange.

[marcel]

Then the problem must be with the boolean variable.
Do you modify it from other threads?

[maverick_pol]

Ok,

Sorry for misleading a bit. I have found the mistake. I have been invalidating a rect which was to small.

Thank you for help

Maverick