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// Copyright (C) 2016 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
#ifndef QABSTRACTFILEICONENGINE_P_H
#define QABSTRACTFILEICONENGINE_P_H
//
// 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 <QtCore/qfileinfo.h>
#include <private/qicon_p.h>
#include <qpa/qplatformtheme.h>
QT_BEGIN_NAMESPACE
class Q_GUI_EXPORT QAbstractFileIconEngine : public QPixmapIconEngine
{
public:
explicit QAbstractFileIconEngine(const QFileInfo &info, QPlatformTheme::IconOptions opts)
: QPixmapIconEngine(), m_fileInfo(info), m_options(opts) {}
QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State) override;
QPixmap scaledPixmap(const QSize &size, QIcon::Mode mode, QIcon::State, qreal scale) override;
QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state) override;
bool isNull() override { return false; }
QFileInfo fileInfo() const { return m_fileInfo; }
QPlatformTheme::IconOptions options() const { return m_options; }
// Helper to convert a sequence of ints to a list of QSize
template <class It> static QList<QSize> toSizeList(It i1, It i2);
protected:
virtual QPixmap filePixmap(const QSize &size, QIcon::Mode mode, QIcon::State) = 0;
virtual QString cacheKey() const;
private:
const QFileInfo m_fileInfo;
const QPlatformTheme::IconOptions m_options;
};
template <class It>
inline QList<QSize> QAbstractFileIconEngine::toSizeList(It i1, It i2)
{
QList<QSize> result;
result.reserve(int(i2 - i1));
for ( ; i1 != i2; ++i1)
result.append(QSize(*i1, *i1));
return result;
}
QT_END_NAMESPACE
#endif // QABSTRACTFILEICONENGINE_P_H
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