QHeaderView: Fix crash in layout about to change

Before there was a risk looking up e.g index -1 if there
were no visible sections in layoutAboutToChange.

Change-Id: Ic911e4292e8e8c4892fef1c0f34cf7dccaad2bac
Task-number: QTBUG-65478
Reviewed-by: David Faure <david.faure@kdab.com>
bb10
Thorbjørn Lund Martsum 2018-02-28 09:23:54 +01:00
parent db6d14318d
commit e8425f9e52
2 changed files with 5 additions and 2 deletions

View File

@ -2163,9 +2163,11 @@ void QHeaderViewPrivate::_q_sectionsAboutToBeChanged()
layoutChangePersistentSections.clear();
layoutChangePersistentSections.reserve(std::min(10, sectionItems.count()));
// after layoutChanged another section can be last stretched section
if (stretchLastSection) {
if (stretchLastSection && lastSectionLogicalIdx >= 0 && lastSectionLogicalIdx < sectionItems.count()) {
const int visual = visualIndex(lastSectionLogicalIdx);
sectionItems[visual].size = lastSectionSize;
if (visual >= 0 && visual < sectionItems.size()) {
sectionItems[visual].size = lastSectionSize;
}
}
for (int i = 0; i < sectionItems.size(); ++i) {
auto s = sectionItems.at(i);

View File

@ -2363,6 +2363,7 @@ void tst_QHeaderView::checkLayoutChangeEmptyModel()
QtTestModel tm;
tm.cols = 11;
QTableView tv;
tv.verticalHeader()->setStretchLastSection(true);
tv.setModel(&tm);
const int section4Size = tv.horizontalHeader()->sectionSize(4) + 1;