6d45d126f8
Add missing #pragma once + missing include * speeds up incremental builds as changes to a header will not always need the full mocs_compilation.cpp for all the target's headers rebuild, while having a moc file sourced into a source file only adds minor extra costs, due to small own code and the used headers usually already covered by the source file, being for the same class/struct * seems to not slow down clean builds, due to empty mocs_compilation.cpp resulting in those quickly processed, while the minor extra cost of the sourced moc files does not outweigh that in summary. Measured times actually improved by some percent points. (ideally CMake would just skip empty mocs_compilation.cpp & its object file one day) * enables compiler to see all methods of a class in same compilation unit to do some sanity checks * potentially more inlining in general, due to more in the compilation unit * allows to keep using more forward declarations in the header, as with the moc code being sourced into the cpp file there definitions can be ensured and often are already for the needs of the normal class methods
130 lines
3.5 KiB
C++
130 lines
3.5 KiB
C++
// SPDX-FileCopyrightText: 2015 Klaralvdalens Datakonsult AB
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// SPDX-FileCopyrightText: 2016 The Qt Company Ltd.
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// SPDX-FileCopyrightText: 2021 Noah Davis <noahadvs@gmail.com>
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// SPDX-License-Identifier: LicenseRef-KDE-Accepted-LGPL
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#pragma once
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#include <QFileInfo>
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#include <QMimeDatabase>
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#include <QObject>
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#include <qqml.h>
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class FileTypeSingletonPrivate;
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/**
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* @class FileTypeSingleton
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*
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* Provide a singleton to expose the functionality of QMimeDatabase.
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*
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* @sa QMimeDatabase
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*/
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class FileTypeSingleton : public QObject
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{
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Q_OBJECT
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/**
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* @brief List of supported image formats.
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*
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* Returns a list of file extensions, not MIME types.
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*/
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Q_PROPERTY(QStringList supportedImageFormats READ supportedImageFormats CONSTANT FINAL)
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/**
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* @brief List of supported animated image formats.
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*
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* Returns a list of file extensions, not MIME types.
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*/
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Q_PROPERTY(QStringList supportedAnimatedImageFormats READ supportedAnimatedImageFormats CONSTANT FINAL)
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QML_NAMED_ELEMENT(FileType)
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QML_SINGLETON
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public:
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explicit FileTypeSingleton(QObject *parent = nullptr);
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~FileTypeSingleton();
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/**
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* @brief Returns a MIME type for nameOrAlias or an invalid one if none found.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForName(const QString &nameOrAlias) const;
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enum MatchMode { MatchDefault, MatchExtension, MatchContent };
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Q_ENUM(MatchMode)
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/**
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* @brief Returns a MIME type for the file named fileName using mode.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForFile(const QString &fileName, FileTypeSingleton::MatchMode mode = MatchDefault) const;
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/**
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* @brief Returns a MIME type for fileInfo.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForFile(const QFileInfo &fileInfo, FileTypeSingleton::MatchMode mode = MatchDefault) const;
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/**
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* @brief Returns the MIME types for the file name fileName.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QList<QMimeType> mimeTypesForFileName(const QString &fileName) const;
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/**
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* @brief Returns a MIME type for data.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForData(const QByteArray &data) const;
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/**
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* @brief Returns a MIME type for the data in device.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForData(QIODevice *device) const;
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/**
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* @brief Returns a MIME type for url.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForUrl(const QUrl &url) const;
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/**
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* @brief Returns a MIME type for the given fileName and device data.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForFileNameAndData(const QString &fileName, QIODevice *device) const;
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/**
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* @brief Returns a MIME type for the given fileName and device data.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForFileNameAndData(const QString &fileName, const QByteArray &data) const;
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/**
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* @brief Returns the suffix for the file fileName, as known by the MIME database.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QString suffixForFileName(const QString &fileName) const;
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QStringList supportedImageFormats() const;
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QStringList supportedAnimatedImageFormats() const;
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private:
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const QScopedPointer<FileTypeSingletonPrivate> d_ptr;
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Q_DECLARE_PRIVATE(FileTypeSingleton)
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Q_DISABLE_COPY(FileTypeSingleton)
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};
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QML_DECLARE_TYPE(FileTypeSingleton)
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