From 6481efa9a8fe88043d931648d72dceeeb91af64d Mon Sep 17 00:00:00 2001 From: David Redondo Date: Wed, 8 Jun 2022 11:25:59 +0200 Subject: [PATCH 39/51] Keep toplevel windows in the top left corner of the screen We can't know the actual position of a window on the screen. This causes an issue when Widgets try to position a popup/menu absolutely and keep it on the screen when the screen geometry doesn't include (0,0). Instead report their positions always as the top left corner of the screen that they are on. This new behavior can be disabled for qt-shell or via an environment variable by users that rely on the old behavior. Fixes: QTBUG-85297 Change-Id: Iacb91cb03a0df87af950115760d2f41124ac06a3 Reviewed-by: Qt CI Bot Reviewed-by: David Edmundson Reviewed-by: Aleix Pol Gonzalez (cherry picked from commit a46795a22e05722917c6ebc60ed01bebf49898ae) --- src/client/qwaylandintegration.cpp | 3 +++ src/client/qwaylandwindow.cpp | 14 +++++++++++++- src/client/qwaylandwindow_p.h | 3 +++ 3 files changed, 19 insertions(+), 1 deletion(-) diff --git a/src/client/qwaylandintegration.cpp b/src/client/qwaylandintegration.cpp index fbf00c6b..54861600 100644 --- a/src/client/qwaylandintegration.cpp +++ b/src/client/qwaylandintegration.cpp @@ -125,6 +125,9 @@ QWaylandIntegration::QWaylandIntegration() #endif reconfigureInputContext(); + + QWaylandWindow::fixedToplevelPositions = + !qEnvironmentVariableIsSet("QT_WAYLAND_DISABLE_FIXED_POSITIONS"); } QWaylandIntegration::~QWaylandIntegration() diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp index 4ddf9fbe..f322a8d6 100644 --- a/src/client/qwaylandwindow.cpp +++ b/src/client/qwaylandwindow.cpp @@ -350,8 +350,13 @@ void QWaylandWindow::setGeometry_helper(const QRect &rect) } } -void QWaylandWindow::setGeometry(const QRect &rect) +void QWaylandWindow::setGeometry(const QRect &r) { + auto rect = r; + if (fixedToplevelPositions && !QPlatformWindow::parent() && window()->type() != Qt::Popup + && window()->type() != Qt::ToolTip) { + rect.moveTo(screen()->geometry().topLeft()); + } setGeometry_helper(rect); if (window()->isVisible() && rect.isValid()) { @@ -1033,6 +1038,13 @@ void QWaylandWindow::handleScreensChanged() QWindowSystemInterface::handleWindowScreenChanged(window(), newScreen->QPlatformScreen::screen()); mLastReportedScreen = newScreen; + if (fixedToplevelPositions && !QPlatformWindow::parent() && window()->type() != Qt::Popup + && window()->type() != Qt::ToolTip + && geometry().topLeft() != newScreen->geometry().topLeft()) { + auto geometry = this->geometry(); + geometry.moveTo(newScreen->geometry().topLeft()); + setGeometry(geometry); + } int scale = newScreen->isPlaceholder() ? 1 : static_cast(newScreen)->scale(); if (scale != mScale) { diff --git a/src/client/qwaylandwindow_p.h b/src/client/qwaylandwindow_p.h index ea3d1995..487a91a6 100644 --- a/src/client/qwaylandwindow_p.h +++ b/src/client/qwaylandwindow_p.h @@ -98,6 +98,9 @@ public: QWaylandWindow(QWindow *window, QWaylandDisplay *display); ~QWaylandWindow() override; + // Keep Toplevels position on the top left corner of their screen + static inline bool fixedToplevelPositions = true; + virtual WindowType windowType() const = 0; virtual void ensureSize(); WId winId() const override; -- 2.40.1