diff options
Diffstat (limited to 'src/plugins/platforms/xcb/qxcbconnection_xi2.cpp')
| -rw-r--r-- | src/plugins/platforms/xcb/qxcbconnection_xi2.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp b/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp index 4639185416..0a82bbc7a9 100644 --- a/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp +++ b/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp @@ -1252,14 +1252,16 @@ void QXcbConnection::xi2ReportTabletEvent(const void *event, TabletData *tabletD if (Q_LIKELY(useValuators)) { const qreal value = scaleOneValuator(normalizedValue, physicalScreenArea.x(), physicalScreenArea.width()); global.setX(value); - local.setX(value - window->handle()->geometry().x()); + // mapFromGlobal is ok for nested/embedded windows, but works only with whole-number QPoint; + // so map it first, then add back the sub-pixel position + local.setX(window->mapFromGlobal(QPoint(int(value), 0)).x() + (value - int(value))); } break; case QXcbAtom::AbsY: if (Q_LIKELY(useValuators)) { qreal value = scaleOneValuator(normalizedValue, physicalScreenArea.y(), physicalScreenArea.height()); global.setY(value); - local.setY(value - window->handle()->geometry().y()); + local.setY(window->mapFromGlobal(QPoint(0, int(value))).y() + (value - int(value))); } break; case QXcbAtom::AbsPressure: |