diff options
Diffstat (limited to 'src/gui/kernel/qguiapplication.cpp')
-rw-r--r-- | src/gui/kernel/qguiapplication.cpp | 47 |
1 files changed, 29 insertions, 18 deletions
diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp index 51653d9f8a..a29ddbe44e 100644 --- a/src/gui/kernel/qguiapplication.cpp +++ b/src/gui/kernel/qguiapplication.cpp @@ -2213,7 +2213,7 @@ void QGuiApplicationPrivate::processWindowScreenChangedEvent(QWindowSystemInterf } // we may have changed scaling, so trigger resize event if needed if (window->handle()) { - QWindowSystemInterfacePrivate::GeometryChangeEvent gce(window, QHighDpi::fromNativePixels(window->handle()->geometry(), window), QRect()); + QWindowSystemInterfacePrivate::GeometryChangeEvent gce(window, QHighDpi::fromNativePixels(window->handle()->geometry(), window)); processGeometryChangeEvent(&gce); } } @@ -2238,35 +2238,46 @@ void QGuiApplicationPrivate::processGeometryChangeEvent(QWindowSystemInterfacePr if (!window) return; - QRect newRect = e->newGeometry; - QRect oldRect = e->oldGeometry.isNull() ? window->d_func()->geometry : e->oldGeometry; - - bool isResize = oldRect.size() != newRect.size(); - bool isMove = oldRect.topLeft() != newRect.topLeft(); - - window->d_func()->geometry = newRect; + const QRect lastReportedGeometry = window->d_func()->geometry; + const QRect requestedGeometry = e->requestedGeometry; + const QRect actualGeometry = e->newGeometry; + + // We send size and move events only if the geometry has changed from + // what was last reported, or if the user tried to set a new geometry, + // but the window manager responded by keeping the old geometry. In the + // latter case we send move/resize events with the same geometry as the + // last reported geometry, to indicate that the window wasn't moved or + // resized. Note that this logic does not apply to the property changes + // of the window, as we don't treat them as part of this request/response + // protocol of QWindow/QPA. + const bool isResize = actualGeometry.size() != lastReportedGeometry.size() + || requestedGeometry.size() != actualGeometry.size(); + const bool isMove = actualGeometry.topLeft() != lastReportedGeometry.topLeft() + || requestedGeometry.topLeft() != actualGeometry.topLeft(); + + window->d_func()->geometry = actualGeometry; if (isResize || window->d_func()->resizeEventPending) { - QResizeEvent e(newRect.size(), oldRect.size()); + QResizeEvent e(actualGeometry.size(), lastReportedGeometry.size()); QGuiApplication::sendSpontaneousEvent(window, &e); window->d_func()->resizeEventPending = false; - if (oldRect.width() != newRect.width()) - window->widthChanged(newRect.width()); - if (oldRect.height() != newRect.height()) - window->heightChanged(newRect.height()); + if (actualGeometry.width() != lastReportedGeometry.width()) + window->widthChanged(actualGeometry.width()); + if (actualGeometry.height() != lastReportedGeometry.height()) + window->heightChanged(actualGeometry.height()); } if (isMove) { //### frame geometry - QMoveEvent e(newRect.topLeft(), oldRect.topLeft()); + QMoveEvent e(actualGeometry.topLeft(), lastReportedGeometry.topLeft()); QGuiApplication::sendSpontaneousEvent(window, &e); - if (oldRect.x() != newRect.x()) - window->xChanged(newRect.x()); - if (oldRect.y() != newRect.y()) - window->yChanged(newRect.y()); + if (actualGeometry.x() != lastReportedGeometry.x()) + window->xChanged(actualGeometry.x()); + if (actualGeometry.y() != lastReportedGeometry.y()) + window->yChanged(actualGeometry.y()); } } |