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QAbstractItemView::dataChanged(): optimize call to QWidget::update()
When topLeft and bottomRight are different in QAIV::dataChanged(), the current implementation simply calls QWidget::update() without checking if the affected cells are visible. This results in a big performance hit when cells are updated frequently. Now try to compute the exact update rect by iterating through the modified indexes. Fixes: QTBUG-58580 Change-Id: I97de567d494e40ed8cdb1ea1f5b3cf3a2f60455e Reviewed-by: Samuel Gaist <samuel.gaist@idiap.ch>
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Original file line number | Diff line number | Diff line change |
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@@ -12,4 +12,5 @@ add_qt_test(tst_qabstractitemview | |
Qt::GuiPrivate | ||
Qt::TestPrivate | ||
Qt::Widgets | ||
Qt::WidgetsPrivate | ||
) |
2 changes: 1 addition & 1 deletion
2
tests/auto/widgets/itemviews/qabstractitemview/qabstractitemview.pro
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Original file line number | Diff line number | Diff line change |
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@@ -1,4 +1,4 @@ | ||
CONFIG += testcase | ||
TARGET = tst_qabstractitemview | ||
QT += widgets testlib testlib-private gui-private | ||
QT += widgets testlib testlib-private gui-private widgets-private | ||
SOURCES += tst_qabstractitemview.cpp |
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