| 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 QABSTRACTFILEICONENGINE_P_H |
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| 5 | #define QABSTRACTFILEICONENGINE_P_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include <QtCore/qfileinfo.h> |
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| 19 | #include <private/qicon_p.h> |
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| 20 | #include <qpa/qplatformtheme.h> |
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| 21 | |
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| 22 | QT_BEGIN_NAMESPACE |
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| 23 | |
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| 24 | class Q_GUI_EXPORT QAbstractFileIconEngine : public QPixmapIconEngine |
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| 25 | { |
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| 26 | public: |
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| 27 | explicit QAbstractFileIconEngine(const QFileInfo &info, QPlatformTheme::IconOptions opts) |
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| 28 | : QPixmapIconEngine(), m_fileInfo(info), m_options(opts) {} |
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| 29 | |
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| 30 | QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State) override; |
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| 31 | QPixmap scaledPixmap(const QSize &size, QIcon::Mode mode, QIcon::State, qreal scale) override; |
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| 32 | QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state) override; |
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| 33 | |
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| 34 | QFileInfo fileInfo() const { return m_fileInfo; } |
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| 35 | QPlatformTheme::IconOptions options() const { return m_options; } |
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| 36 | |
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| 37 | // Helper to convert a sequence of ints to a list of QSize |
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| 38 | template <class It> static QList<QSize> toSizeList(It i1, It i2); |
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| 39 | |
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| 40 | protected: |
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| 41 | virtual QPixmap filePixmap(const QSize &size, QIcon::Mode mode, QIcon::State) = 0; |
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| 42 | virtual QString cacheKey() const; |
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| 43 | |
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| 44 | private: |
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| 45 | const QFileInfo m_fileInfo; |
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| 46 | const QPlatformTheme::IconOptions m_options; |
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| 47 | }; |
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| 48 | |
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| 49 | template <class It> |
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| 50 | inline QList<QSize> QAbstractFileIconEngine::toSizeList(It i1, It i2) |
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| 51 | { |
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| 52 | QList<QSize> result; |
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| 53 | result.reserve(size: int(i2 - i1)); |
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| 54 | for ( ; i1 != i2; ++i1) |
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| 55 | result.append(t: QSize(*i1, *i1)); |
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| 56 | return result; |
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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 // QABSTRACTFILEICONENGINE_P_H |
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| 62 | |
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