tdf#130857 qt weld: Support ScrolledWindow page size HEADmaster

IIUC, the "page size" (other than the "page increment")
refers to the size of the widget shown in the scroll area.

Therefore, get/set the width/height of the QScrollArea's widget
when getting/setting the page size.

As the QScrollArea::widgetResizable doc [1] says:

> Regardless of this property, you can programmatically resize the
> widget using widget()->resize(), and the scroll area will automatically
> adjust itself to the new size.

[1] https://doc.qt.io/qt-6/qscrollarea.html#widgetResizable-prop

Change-Id: Ibe90c0228bdc3a2c1ba311a9c9c88fa83d1389b2
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/180564
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
Tested-by: Jenkins

0 files changed, 0 insertions, 0 deletions