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-rw-r--r--src/widgets/kernel/qtooltip.cpp17
1 files changed, 11 insertions, 6 deletions
diff --git a/src/widgets/kernel/qtooltip.cpp b/src/widgets/kernel/qtooltip.cpp
index 8c5573d3a3..2e6575c163 100644
--- a/src/widgets/kernel/qtooltip.cpp
+++ b/src/widgets/kernel/qtooltip.cpp
@@ -229,12 +229,17 @@ void QTipLabel::updateSize(const QPoint &pos)
++extra.rheight();
QSize sh = sizeHint();
if (wordWrap()) {
- const QRect screenRect = QGuiApplication::screenAt(pos)->geometry();
- if (sh.width() > screenRect.width()) {
- // Try to use widely accepted 75chars max length or 80% of the screen width else.
- // See https://en.wikipedia.org/wiki/Line_length
- sh.setWidth(qMin(fm.averageCharWidth() * 75, static_cast<int>(screenRect.width() * .8)));
- sh.setHeight(heightForWidth(sh.width()));
+ QScreen *screen = QGuiApplication::screenAt(pos);
+ if (!screen)
+ screen = QGuiApplication::primaryScreen();
+ if (screen) {
+ const qreal screenWidth = screen->geometry().width();
+ if (sh.width() > screenWidth) {
+ // Try to use widely accepted 75chars max length or 80% of the screen width else.
+ // See https://en.wikipedia.org/wiki/Line_length
+ sh.setWidth(qMin(fm.averageCharWidth() * 75, static_cast<int>(screenWidth * .8)));
+ sh.setHeight(heightForWidth(sh.width()));
+ }
}
}
resize(sh + extra);