show full content QDockWidget with QScrollArea

[junior-root]

Hello.
I have a floating QDockWidget that hold a QWidget (QDockWidget::setWidget(QWidget * widget).
This QWidget hold a QToolBar and a QScrollArea grouped into a QVBoxLayout.

I want to resize QDockWidget to show full content.
For this I need that QScrollArea show full content too, without needing scroolbars.
How can I do that?

+------------------------+
| QDockWidget            |
|  +-------------------+ |
|  |  QWidget          | |
|  |   QVBoxLayout     | |
|  |    QToolBar       | |
|  |   +-------------+ | |
|  |   | QScrollArea | | |
|  |   | +---------+ | | |
|  |   | | QWidget | | | |
|  |   | +---------+ | | |
|  |   +-------------+ | |
|  |                   | |
|  +-------------------+ |
+------------------------+

+------------------------+
| QDockWidget            |
|  +-------------------+ |
|  |  QWidget          | |
|  |   QVBoxLayout     | |
|  |    QToolBar       | |
|  |   +-------------+ | |
|  |   | QScrollArea | | |
|  |   | +---------+ | | |
|  |   | | QWidget | | | |
|  |   | +---------+ | | |
|  |   +-------------+ | |
|  |                   | |
|  +-------------------+ |
+------------------------+

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[Santosh Reddy]

...For this I need that QScrollArea show full content too, without needing scroolbars....

Then don't QScrollArea at all, just put QToolBar and QWidget in QVBoxLayout.