Add FileType singleton

This singleton is used to get the mimetype info for files as well as supported formats for Images and AnimatedImages
2021-01-03 13:38:14 -05:00
parent f232c40955
commit 50d8bd5b7e
4 changed files with 182 additions and 0 deletions
--- a/src/filetypesingleton.cpp
+++ b/src/filetypesingleton.cpp
@@ -0,0 +1,114 @@
+/* SPDX-FileCopyrightText: 2021 Noah Davis <noahadvs@gmail.com>
+ * SPDX-License-Identifier: LicenseRef-KDE-Accepted-LGPL
+ */
+
+#include "filetypesingleton.h"
+#include <QImageReader>
+#include <QMovie>
+
+static QStringList byteArrayListToStringList(const QByteArrayList &byteArrayList)
+{
+    QStringList stringList;
+    for(const QByteArray &byteArray : byteArrayList) {
+        stringList.append(QString::fromLocal8Bit(byteArray));
+    }
+    return stringList;
+}
+
+class FileTypeSingletonPrivate
+{
+    Q_DECLARE_PUBLIC(FileTypeSingleton)
+    Q_DISABLE_COPY(FileTypeSingletonPrivate)
+public:
+    FileTypeSingletonPrivate(FileTypeSingleton *qq);
+    FileTypeSingleton * const q_ptr;
+    QMimeDatabase mimetypeDatabase;
+    QStringList supportedImageFormats = byteArrayListToStringList(QImageReader::supportedImageFormats());
+    QStringList supportedAnimatedImageFormats = byteArrayListToStringList(QMovie::supportedFormats());
+};
+
+FileTypeSingletonPrivate::FileTypeSingletonPrivate(FileTypeSingleton* qq) : q_ptr(qq)
+{
+}
+
+FileTypeSingleton::FileTypeSingleton(QObject* parent)
+    : QObject(parent)
+    , d_ptr(new FileTypeSingletonPrivate(this))
+{
+}
+
+FileTypeSingleton::~FileTypeSingleton() noexcept
+{
+}
+
+QMimeType FileTypeSingleton::mimeTypeForName(const QString& nameOrAlias) const
+{
+    Q_D(const FileTypeSingleton);
+    return d->mimetypeDatabase.mimeTypeForName(nameOrAlias);
+}
+
+QMimeType FileTypeSingleton::mimeTypeForFile(const QString& fileName, MatchMode mode) const
+{
+    Q_D(const FileTypeSingleton);
+    return d->mimetypeDatabase.mimeTypeForFile(fileName, static_cast<QMimeDatabase::MatchMode>(mode));
+}
+
+QMimeType FileTypeSingleton::mimeTypeForFile(const QFileInfo& fileInfo, MatchMode mode) const
+{
+    Q_D(const FileTypeSingleton);
+    return d->mimetypeDatabase.mimeTypeForFile(fileInfo, static_cast<QMimeDatabase::MatchMode>(mode));
+}
+
+QList<QMimeType> FileTypeSingleton::mimeTypesForFileName(const QString& fileName) const
+{
+    Q_D(const FileTypeSingleton);
+    return d->mimetypeDatabase.mimeTypesForFileName(fileName);
+}
+
+QMimeType FileTypeSingleton::mimeTypeForData(const QByteArray& data) const
+{
+    Q_D(const FileTypeSingleton);
+    return d->mimetypeDatabase.mimeTypeForData(data);
+}
+
+QMimeType FileTypeSingleton::mimeTypeForData(QIODevice* device) const
+{
+    Q_D(const FileTypeSingleton);
+    return d->mimetypeDatabase.mimeTypeForData(device);
+}
+
+QMimeType FileTypeSingleton::mimeTypeForUrl(const QUrl& url) const
+{
+    Q_D(const FileTypeSingleton);
+    return d->mimetypeDatabase.mimeTypeForUrl(url);
+}
+
+QMimeType FileTypeSingleton::mimeTypeForFileNameAndData(const QString& fileName, QIODevice* device) const
+{
+    Q_D(const FileTypeSingleton);
+    return d->mimetypeDatabase.mimeTypeForFileNameAndData(fileName, device);
+}
+
+QMimeType FileTypeSingleton::mimeTypeForFileNameAndData(const QString& fileName, const QByteArray& data) const
+{
+    Q_D(const FileTypeSingleton);
+    return d->mimetypeDatabase.mimeTypeForFileNameAndData(fileName, data);
+}
+
+QString FileTypeSingleton::suffixForFileName(const QString& fileName) const
+{
+    Q_D(const FileTypeSingleton);
+    return d->mimetypeDatabase.suffixForFileName(fileName);
+}
+
+QStringList FileTypeSingleton::supportedImageFormats() const
+{
+    Q_D(const FileTypeSingleton);
+    return d->supportedImageFormats;
+}
+
+QStringList FileTypeSingleton::supportedAnimatedImageFormats() const
+{
+    Q_D(const FileTypeSingleton);
+    return d->supportedAnimatedImageFormats;
+}