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++ // Copyright (C) 2023 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
++ // Qt-Security score:significant reason:default
++
++ #ifndef QFONTICONENGINE_H
++ #define QFONTICONENGINE_H
++
++ #include <QtGui/qiconengine.h>
++
++ #ifndef QT_NO_ICON
++ //
++ // W A R N I N G
++ // -------------
++ //
++ // This file is not part of the Qt API. It exists purely as an
++ // implementation detail. This header file may change from version to
++ // version without notice, or even be removed.
++ //
++ // We mean it.
++ //
++
++ #include <QtGui/qfont.h>
++
++ QT_BEGIN_NAMESPACE
++
++ using glyph_t = quint32;
++
++ class Q_GUI_EXPORT QFontIconEngine : public QIconEngine
++ {
++ public:
++ QFontIconEngine(const QString &iconName, const QFont &font);
++ ~QFontIconEngine();
++
++ QString iconName() override;
++ bool isNull() override;
++ QString key() const override;
++ QIconEngine *clone() const override;
++
++ QList<QSize> availableSizes(QIcon::Mode, QIcon::State) override;
++ QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state) override;
++ QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) override;
++ QPixmap scaledPixmap(const QSize &size, QIcon::Mode mode, QIcon::State state, qreal scale) override;
++ void paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state) override;
++
++ protected:
++ virtual QString string() const;
++ virtual glyph_t glyph() const;
++
++ private:
++ static constexpr quint64 calculateCacheKey(QIcon::Mode mode, QIcon::State state)
++ {
++ return (quint64(mode) << 32) | state;
++ }
++
++ const QString m_iconName;
++ const QFont m_iconFont;
++ mutable QPixmap m_pixmap;
++ mutable quint64 m_pixmapCacheKey = {};
++ static constexpr glyph_t uninitializedGlyph = std::numeric_limits<glyph_t>::max();
++ mutable glyph_t m_glyph = uninitializedGlyph;
++ };
++
++ QT_END_NAMESPACE
++
++ #endif // QT_NO_ICON
++
++ #endif // QFONTICONENGINE_H