| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #ifndef QICONENGINE_H |
| 5 | #define QICONENGINE_H |
| 6 | |
| 7 | #include <QtGui/qtguiglobal.h> |
| 8 | #include <QtCore/qlist.h> |
| 9 | #include <QtGui/qicon.h> |
| 10 | |
| 11 | QT_BEGIN_NAMESPACE |
| 12 | |
| 13 | |
| 14 | class Q_GUI_EXPORT QIconEngine |
| 15 | { |
| 16 | public: |
| 17 | QIconEngine(); |
| 18 | virtual ~QIconEngine(); |
| 19 | virtual void paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state) = 0; |
| 20 | virtual QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state); |
| 21 | // ### Qt7: add qreal scale argument and remove scaledPixmap |
| 22 | virtual QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state); |
| 23 | |
| 24 | virtual void addPixmap(const QPixmap &pixmap, QIcon::Mode mode, QIcon::State state); |
| 25 | virtual void addFile(const QString &fileName, const QSize &size, QIcon::Mode mode, QIcon::State state); |
| 26 | |
| 27 | virtual QString key() const; |
| 28 | virtual QIconEngine *clone() const = 0; |
| 29 | virtual bool read(QDataStream &in); |
| 30 | virtual bool write(QDataStream &out) const; |
| 31 | |
| 32 | virtual QList<QSize> availableSizes(QIcon::Mode mode = QIcon::Normal, |
| 33 | QIcon::State state = QIcon::Off); |
| 34 | |
| 35 | virtual QString iconName(); |
| 36 | virtual bool isNull(); |
| 37 | virtual QPixmap scaledPixmap(const QSize &size, QIcon::Mode mode, QIcon::State state, qreal scale); |
| 38 | |
| 39 | enum IconEngineHook { IsNullHook = 3, ScaledPixmapHook }; |
| 40 | |
| 41 | struct ScaledPixmapArgument |
| 42 | { |
| 43 | QSize size; |
| 44 | QIcon::Mode mode; |
| 45 | QIcon::State state; |
| 46 | qreal scale; |
| 47 | QPixmap pixmap; |
| 48 | }; |
| 49 | |
| 50 | virtual void virtual_hook(int id, void *data); |
| 51 | |
| 52 | protected: |
| 53 | QIconEngine(const QIconEngine &other); |
| 54 | |
| 55 | private: |
| 56 | QIconEngine &operator=(const QIconEngine &other) = delete; |
| 57 | }; |
| 58 | |
| 59 | QT_END_NAMESPACE |
| 60 | |
| 61 | #endif // QICONENGINE_H |
| 62 |