subsurface/desktop-widgets
Berthold Stoeger a9a4249b23 desktop: avoid crashes on drag&drop in GroupedLineEdit
If the user manages to "scroll" through the QPlainTextEdit by
a drag&drop action, the state of the widget becomes inconsistent.
On the one hand, the text-block says that it has one line.
On the other hand, its layout says that it has no line.
When trying to fetch the line, a crash occurs.

Try to detect such a strange state and return early in
GroupedLineEdit::paintEvent().

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2020-10-24 09:49:36 -07:00
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