diff options
Diffstat (limited to 'src/gui/kernel/qhighdpiscaling_p.h')
-rw-r--r-- | src/gui/kernel/qhighdpiscaling_p.h | 70 |
1 files changed, 24 insertions, 46 deletions
diff --git a/src/gui/kernel/qhighdpiscaling_p.h b/src/gui/kernel/qhighdpiscaling_p.h index 3e7ba2f5e1..d6deb8a72a 100644 --- a/src/gui/kernel/qhighdpiscaling_p.h +++ b/src/gui/kernel/qhighdpiscaling_p.h @@ -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 #ifndef QHIGHDPISCALING_P_H #define QHIGHDPISCALING_P_H @@ -124,13 +88,21 @@ public: static QPoint mapPositionFromNative(const QPoint &pos, const QPlatformScreen *platformScreen); static QPoint mapPositionToNative(const QPoint &pos, const QPlatformScreen *platformScreen); static QDpi logicalDpi(const QScreen *screen); + static qreal roundScaleFactor(qreal rawFactor); private: + struct ScreenFactor { + ScreenFactor(QString name, qreal factor) + :name(name), factor(factor) { } + QString name; + qreal factor; + }; + static qreal rawScaleFactor(const QPlatformScreen *screen); - static qreal roundScaleFactor(qreal rawFactor); static QDpi effectiveLogicalDpi(const QPlatformScreen *screen, qreal rawFactor, qreal roundedFactor); static qreal screenSubfactor(const QPlatformScreen *screen); static QScreen *screenForPosition(Point position, QScreen *guess); + static QVector<QHighDpiScaling::ScreenFactor> parseScreenScaleFactorsSpec(const QStringView &screenScaleFactors); static qreal m_factor; static bool m_active; @@ -139,9 +111,13 @@ private: static bool m_globalScalingActive; static bool m_screenFactorSet; static bool m_usePhysicalDpi; - static QString m_screenFactorsSpec; + static QVector<ScreenFactor> m_screenFactors; static DpiAdjustmentPolicy m_dpiAdjustmentPolicy; static QHash<QString, qreal> m_namedScreenScaleFactors; + +#ifndef QT_NO_DEBUG_STREAM + friend Q_GUI_EXPORT QDebug operator<<(QDebug, const ScreenFactor &); +#endif }; namespace QHighDpi { @@ -196,7 +172,7 @@ inline QMargins scale(const QMargins &margins, qreal scaleFactor, QPoint origin template<typename T> QList<T> scale(const QList<T> &list, qreal scaleFactor, QPoint origin = QPoint(0, 0)) { - if (!QHighDpiScaling::isActive()) + if (qFuzzyCompare(scaleFactor, qreal(1))) return list; QList<T> scaled; @@ -208,13 +184,12 @@ QList<T> scale(const QList<T> &list, qreal scaleFactor, QPoint origin = QPoint(0 inline QRegion scale(const QRegion ®ion, qreal scaleFactor, QPoint origin = QPoint(0, 0)) { - if (!QHighDpiScaling::isActive()) + if (qFuzzyCompare(scaleFactor, qreal(1))) return region; - QRegion scaled; - for (const QRect &rect : region) - scaled += scale(QRectF(rect), scaleFactor, origin).toRect(); - return scaled; + QRegion scaled = region.translated(-origin); + scaled = QTransform::fromScale(scaleFactor, scaleFactor).map(scaled); + return scaled.translated(origin); } template <typename T> @@ -373,6 +348,9 @@ public: namespace QHighDpi { template <typename T> inline + T scale(const T &value, ...) { return value; } + + template <typename T> inline T toNative(const T &value, ...) { return value; } template <typename T> inline T fromNative(const T &value, ...) { return value; } |