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QAbstractItemView::sizeHintForRow()/Column: Check for null delegate.

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The delegate may be null in QHeaderView.

Task-number: QTBUG-48543
Change-Id: I4d3ba104b0b57431e8765271dc2dc880be096672
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
This commit is contained in:
Friedemann Kleint 2015-10-02 14:39:23 +02:00
parent e56938b4bb
commit 2042a091a3
2 changed files with 16 additions and 4 deletions
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8
src/widgets/itemviews/qabstractitemview.cpp
View File

@ -3020,8 +3020,8 @@ int QAbstractItemView::sizeHintForRow(int row) const
const QModelIndex index = d->model->index(row, c, d->root);
if (QWidget *editor = d->editorForIndex(index).widget.data())
height = qMax(height, editor->height());
int hint = d->delegateForIndex(index)->sizeHint(option, index).height();
height = qMax(height, hint);
if (const QAbstractItemDelegate *delegate = d->delegateForIndex(index))
height = qMax(height, delegate->sizeHint(option, index).height());
}
return height;
}
@ -3050,8 +3050,8 @@ int QAbstractItemView::sizeHintForColumn(int column) const
const QModelIndex index = d->model->index(r, column, d->root);
if (QWidget *editor = d->editorForIndex(index).widget.data())
width = qMax(width, editor->sizeHint().width());
int hint = d->delegateForIndex(index)->sizeHint(option, index).width();
width = qMax(width, hint);
if (const QAbstractItemDelegate *delegate = d->delegateForIndex(index))
width = qMax(width, delegate->sizeHint(option, index).width());
}
return width;
}

12
tests/auto/widgets/itemviews/qheaderview/tst_qheaderview.cpp
View File

@ -239,6 +239,8 @@ private slots:
void testStreamWithHide();
void testStylePosition();
void sizeHintCrash();
protected:
void setupTestData(bool use_reset_model = false);
void additionalInit();
@ -2879,5 +2881,15 @@ void tst_QHeaderView::testStylePosition()
QCOMPARE(proxy.lastPosition, QStyleOptionHeader::OnlyOneSection);
}
void tst_QHeaderView::sizeHintCrash()
{
QTreeView treeView;
QStandardItemModel *model = new QStandardItemModel(&treeView);
model->appendRow(new QStandardItem("QTBUG-48543"));
treeView.setModel(model);
treeView.header()->sizeHintForColumn(0);
treeView.header()->sizeHintForRow(0);
}
QTEST_MAIN(tst_QHeaderView)
#include "tst_qheaderview.moc"