Hiding the title of a plot

[moijhd]

Hi,

I am trying to hide the title of a QwtPlot.

QwtPlot *plot = new QwtPlot();
// ...
plot->titleLabel()->setVisible(false)

QwtPlot *plot = new QwtPlot();
// ...
plot->titleLabel()->setVisible(false)

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The title "blinks" but is not hidden.

I am on linux. It does not work on Windows XP.
The QwtTextLabel works fine.

Thanks.

[yannwilfried]

You could try to set an empty text to your plot title like this:

plot->setTitle("");

plot->setTitle("");

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[moijhd]

Yes ofc but as I want to show it later it means that I have to keep a copy of the title before removing it.

The question is more about why it does not work as expected.

[Uwe]

The question is more about why it does not work as expected.

Because your expectation is not how it works.

But, being more serious: hiding/showing of the plot title widget is under control - depending on an empty title or not - of the layout system of the plot widget. When you hide a not empty title widget manually it will be shown by the next replot. That's why it is blinking.

Uwe

[moijhd]

Okay, thank you !

(and I wanted to mean "as I expected...")

That leaves me with two solutions I guess :
- The one we talked about (removing the string)
- And overloading the replot function.

I'll go with the first one which is fair enough for me