diff options
Diffstat (limited to 'src/gui/kernel/qplatformwindow.cpp')
| -rw-r--r-- | src/gui/kernel/qplatformwindow.cpp | 73 |
1 files changed, 23 insertions, 50 deletions
diff --git a/src/gui/kernel/qplatformwindow.cpp b/src/gui/kernel/qplatformwindow.cpp index 633a262d56..3baa48247b 100644 --- a/src/gui/kernel/qplatformwindow.cpp +++ b/src/gui/kernel/qplatformwindow.cpp @@ -1,41 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only #include "qplatformwindow.h" #include "qplatformwindow_p.h" @@ -406,18 +370,18 @@ void QPlatformWindow::setMask(const QRegion ®ion) Reimplement to let Qt be able to request activation/focus for a window Some window systems will probably not have callbacks for this functionality, - and then calling QWindowSystemInterface::handleWindowActivated(QWindow *w) + and then calling QWindowSystemInterface::handleFocusWindowChanged(QWindow *w) would be sufficient. If the window system has some event handling/callbacks then call - QWindowSystemInterface::handleWindowActivated(QWindow *w) when the window system + QWindowSystemInterface::handleFocusWindowChanged(QWindow *w) when the window system gives the notification. - Default implementation calls QWindowSystem::handleWindowActivated(QWindow *w) + Default implementation calls QWindowSystem::handleFocusWindowChanged(QWindow *w) */ void QPlatformWindow::requestActivateWindow() { - QWindowSystemInterface::handleWindowActivated(window()); + QWindowSystemInterface::handleFocusWindowChanged(window()); } /*! @@ -763,20 +727,29 @@ QRect QPlatformWindow::initialGeometry(const QWindow *w, const QRect &initialGeo should be delivered using QPlatformWindow::deliverUpdateRequest() to not get out of sync with the internal state of QWindow. - The default implementation posts an UpdateRequest event to the - window after 5 ms. The additional time is there to give the event - loop a bit of idle time to gather system events. + The default implementation posts an UpdateRequest event to the window after + an interval that is at most 5 ms. If the window's associated screen reports + a \l{QPlatformScreen::refreshRate()}{refresh rate} higher than 60 Hz, the + interval is scaled down to a valid smaller than 5. The additional time is + there to give the event loop a bit of idle time to gather system events. */ void QPlatformWindow::requestUpdate() { Q_D(QPlatformWindow); - static int updateInterval = []() { - bool ok = false; - int customUpdateInterval = qEnvironmentVariableIntValue("QT_QPA_UPDATE_IDLE_TIME", &ok); - return ok ? customUpdateInterval : 5; - }(); + static bool customUpdateIntervalValid = false; + static int customUpdateInterval = qEnvironmentVariableIntValue("QT_QPA_UPDATE_IDLE_TIME", + &customUpdateIntervalValid); + int updateInterval = customUpdateInterval; + if (!customUpdateIntervalValid) { + updateInterval = 5; + if (QPlatformScreen *currentScreen = screen()) { + const qreal refreshRate = currentScreen->refreshRate(); + if (refreshRate > 60.0) + updateInterval /= refreshRate / 60.0; + } + } Q_ASSERT(!d->updateTimer.isActive()); d->updateTimer.start(updateInterval, Qt::PreciseTimer, window()); |