QwtPlot inside QScrollArea

[mastupristi]

I need to place a QwtPlot in a QScrollArea (I use it to address some magnification/panning issues).
I do this as follow:

QScrollArea *sa = new QScrollArea(this);
sa->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
sa->setMinimumSize(700, 500);
sa->sizeHint();
sa->setVerticalScrollBarPolicy ( Qt::ScrollBarAlwaysOff );
sa->setHorizontalScrollBarPolicy ( Qt::ScrollBarAlwaysOn );
 
QwtPlot *plot = new QwtPlot(sa->viewport());
plot->setMinimumSize(sa->size());
plot->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
plot->sizeHint();
sa->setWidget(plot);

QScrollArea *sa = new QScrollArea(this);
sa->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
sa->setMinimumSize(700, 500);
sa->sizeHint();
sa->setVerticalScrollBarPolicy ( Qt::ScrollBarAlwaysOff );
sa->setHorizontalScrollBarPolicy ( Qt::ScrollBarAlwaysOn );

QwtPlot *plot = new QwtPlot(sa->viewport());
plot->setMinimumSize(sa->size());
plot->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
plot->sizeHint();
sa->setWidget(plot);

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In this way the QwtPlot is only partially visible.
I want to set QwtPlot size to be fully visible inside QScrollArea.
How can I set correctly the QwtPlot size?

thanks

[OverTheOCean]

mastupristi,

l would like to do the same thing than you ... have you solved the issue ??

regards,

Michael

[OverTheOCean]

actually l would like to complete my question...

l would like to add several QWTplot in a QSCrollArea, l would add them from a Palette using Drag and Drop event.

I can manage the Drag-Drop event to add simple rectangle, but l don't know to add QWTPlot elements.

any hints ??

thanks,

Michael

[fieldfarmer]

hi, mastupristi, i am on the same issue as you.
i think core of the issue is on how to set the proportion of the qwidget size and the qwtplot x-scale.
I am trying to add qwtplot(chart column) in several QWidget objects in one qstackedwidget container.

Any progress please let me know.
Thanks a lot.