| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
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| 2 | // 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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| 3 | |
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| 4 | #ifndef QICONENGINE_H |
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| 5 | #define QICONENGINE_H |
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| 6 | |
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| 7 | #include <QtGui/qtguiglobal.h> |
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| 8 | #include <QtCore/qlist.h> |
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| 9 | #include <QtGui/qicon.h> |
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| 10 | |
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| 11 | QT_BEGIN_NAMESPACE |
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| 12 | |
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| 13 | |
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| 14 | class Q_GUI_EXPORT QIconEngine |
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| 15 | { |
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| 16 | public: |
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| 17 | QIconEngine(); |
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| 18 | virtual ~QIconEngine(); |
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| 19 | virtual void paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state) = 0; |
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| 20 | virtual QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state); |
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| 21 | // ### Qt7: add qreal scale argument and remove scaledPixmap |
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| 22 | virtual QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state); |
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| 23 | |
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| 24 | virtual void addPixmap(const QPixmap &pixmap, QIcon::Mode mode, QIcon::State state); |
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| 25 | virtual void addFile(const QString &fileName, const QSize &size, QIcon::Mode mode, QIcon::State state); |
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| 26 | |
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| 27 | virtual QString key() const; |
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| 28 | virtual QIconEngine *clone() const = 0; |
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| 29 | virtual bool read(QDataStream &in); |
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| 30 | virtual bool write(QDataStream &out) const; |
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| 31 | |
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| 32 | virtual QList<QSize> availableSizes(QIcon::Mode mode = QIcon::Normal, |
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| 33 | QIcon::State state = QIcon::Off); |
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| 34 | |
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| 35 | virtual QString iconName(); |
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| 36 | virtual bool isNull(); |
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| 37 | virtual QPixmap scaledPixmap(const QSize &size, QIcon::Mode mode, QIcon::State state, qreal scale); |
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| 38 | |
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| 39 | enum IconEngineHook { IsNullHook = 3, ScaledPixmapHook }; |
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| 40 | |
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| 41 | struct ScaledPixmapArgument |
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| 42 | { |
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| 43 | QSize size; |
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| 44 | QIcon::Mode mode; |
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| 45 | QIcon::State state; |
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| 46 | qreal scale; |
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| 47 | QPixmap pixmap; |
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| 48 | }; |
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| 49 | |
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| 50 | virtual void virtual_hook(int id, void *data); |
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| 51 | |
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| 52 | protected: |
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| 53 | QIconEngine(const QIconEngine &other); |
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| 54 | |
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| 55 | private: |
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| 56 | QIconEngine &operator=(const QIconEngine &other) = delete; |
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| 57 | }; |
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| 58 | |
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| 59 | QT_END_NAMESPACE |
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| 60 | |
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| 61 | #endif // QICONENGINE_H |
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| 62 | |
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