48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
// Copyright (C) 2023 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
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#ifndef QWINDOWSICONENGINE_H
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#define QWINDOWSICONENGINE_H
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#include <QtCore/qt_windows.h>
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#include <QtGui/qfont.h>
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#include <QtGui/qiconengine.h>
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QT_BEGIN_NAMESPACE
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class QWindowsIconEngine : public QIconEngine
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{
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public:
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QWindowsIconEngine(const QString &iconName);
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~QWindowsIconEngine();
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QIconEngine *clone() const override;
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QString key() const override;
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QString iconName() override;
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bool isNull() override;
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QList<QSize> availableSizes(QIcon::Mode, QIcon::State) override;
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QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state) override;
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QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) override;
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QPixmap scaledPixmap(const QSize &size, QIcon::Mode mode, QIcon::State state, qreal scale) override;
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void paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state) override;
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private:
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static constexpr quint64 calculateCacheKey(QIcon::Mode mode, QIcon::State state)
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{
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return (quint64(mode) << 32) | state;
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}
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QString glyphs() const;
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const QString m_iconName;
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const QFont m_iconFont;
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const QString m_glyphs;
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mutable QPixmap m_pixmap;
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mutable quint64 m_cacheKey = {};
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};
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QT_END_NAMESPACE
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#endif // QWINDOWSICONENGINE_H
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