It's not clear why, but the combination of a word-wrapped QLabel with
the setFocusPolicy() call in overrideFocusPolicyOf() seems to break
the positioning of the groupbox in its parent layout.
Until we understand where the bug is and how to fix it, we can toggle
the groupbox twice when we detect that a QLabel with word-wrapping
enabled has been added as child. Not clear why (again), but this fixes
(or at least hides) the issue.
CCBUG: 396450
Apply the patch, then run kcollapsiblegroupboxtest with/without the workaround compiled in.
| Automatic diff as part of commit; lint not applicable. |
| Automatic diff as part of commit; unit tests not applicable. |
Could you add a bug number so that people reading the code can decide if/when the workaround can get removed?
There is no bugreport, I'll have to file one.
While working on a minimal test case I realized that QBoxLayout::addStretch() might also be involved. Needs more investigation.
| src/kcollapsiblegroupbox.cpp | ||
|---|---|---|
| 307–308 | Did you know why it should be called twice? Does one later toggle invoke will fix it? | |