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QButtonGroup: make sure to always auto-assign negative ids

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QButtonGroup::addButton() automatically assigns a negative id when no id
is given. This logic did not work out when a button with a positive id
was added beforehand.
Add a check to make sure to always return an auto-assigned negative id.

Pick-to: 6.7 6.5
Fixes: QTBUG-129398
Change-Id: Ieadfa44c4b145184a5473713591f4c111a5dafa4
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
(cherry picked from commit 772d374ce715de9caaae4f026594d49f6da28dec)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Christian Ehrlicher 2024-10-04 21:20:51 +02:00 committed by Qt Cherry-pick Bot
parent 20bf08f012
commit 85af817469
2 changed files with 7 additions and 8 deletions
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5
src/widgets/widgets/qbuttongroup.cpp
View File

@ -211,12 +211,11 @@ void QButtonGroup::addButton(QAbstractButton *button, int id)
button->d_func()->group = this;
d->buttonList.append(button);
if (id == -1) {
const QHash<QAbstractButton*, int>::const_iterator it
= std::min_element(d->mapping.cbegin(), d->mapping.cend());
const auto it = std::min_element(d->mapping.cbegin(), d->mapping.cend());
if (it == d->mapping.cend())
d->mapping[button] = -2;
else
d->mapping[button] = *it - 1;
d->mapping[button] = (*it >= 0) ? -2 : (*it - 1);
} else {
d->mapping[button] = id;
}

10
tests/auto/widgets/widgets/qbuttongroup/tst_qbuttongroup.cpp
View File

@ -539,18 +539,18 @@ void tst_QButtonGroup::autoIncrementId()
QRadioButton *radio3 = new QRadioButton(&dlg);
radio3->setText("radio3");
buttons->addButton(radio1);
buttons->addButton(radio1, 2);
vbox->addWidget(radio1);
buttons->addButton(radio2);
buttons->addButton(radio2, -1);
vbox->addWidget(radio2);
buttons->addButton(radio3);
vbox->addWidget(radio3);
radio1->setChecked(true);
QCOMPARE(buttons->id(radio1), -2);
QCOMPARE(buttons->id(radio2), -3);
QCOMPARE(buttons->id(radio3), -4);
QCOMPARE(buttons->id(radio1), 2);
QCOMPARE(buttons->id(radio2), -2);
QCOMPARE(buttons->id(radio3), -3);
dlg.show();
}