Import QMimeType / QMimeDatabase into QtCore.

History of the development before the import:
ssh://codereview.qt-project.org/playground/mimetypes.git

Mimetype definitions come from shared-mime-info where available (UNIX systems),
loaded using a mmap'ed binary cache generated by update-mime-database.
As a fallback if no cache is found, we parse the raw XML files otherwise.

This makes the MIME type support fast and with very low memory usage on UNIX,
and it makes it easy to use on Windows (no dependency on shared-mime-info,
Qt even includes a freedesktop.xml file to use if none are found on the system).

Change-Id: I27b05008216ff936dc463bd80d3893422bfb940e
Reviewed-by: Richard J. Moore <rich@kde.org>

1 files changed, 89 insertions, 0 deletions

diff --git a/src/corelib/mimetypes/qmimemagicrule_p.h b/src/corelib/mimetypes/qmimemagicrule_p.h
new file mode 100644
index 0000000000..655ca365fa
--- /dev/null
+++ b/src/corelib/mimetypes/qmimemagicrule_p.h
@@ -0,0 +1,89 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#ifndef QMIMEMAGICRULE_P_H
+#define QMIMEMAGICRULE_P_H
+
+#include <QtCore/qbytearray.h>
+#include <QtCore/qscopedpointer.h>
+#include <QtCore/qlist.h>
+
+QT_BEGIN_NAMESPACE
+
+class QMimeMagicRulePrivate;
+class QMimeMagicRule
+{
+public:
+    enum Type { Invalid = 0, String, Host16, Host32, Big16, Big32, Little16, Little32, Byte };
+
+    QMimeMagicRule(Type type, const QByteArray &value, int startPos, int endPos, const QByteArray &mask = QByteArray());
+    QMimeMagicRule(const QMimeMagicRule &other);
+    ~QMimeMagicRule();
+
+    QMimeMagicRule &operator=(const QMimeMagicRule &other);
+
+    bool operator==(const QMimeMagicRule &other) const;
+
+    Type type() const;
+    QByteArray value() const;
+    int startPos() const;
+    int endPos() const;
+    QByteArray mask() const;
+
+    bool isValid() const;
+
+    bool matches(const QByteArray &data) const;
+
+    QList<QMimeMagicRule> m_subMatches;
+
+    static Type type(const QByteArray &type);
+    static QByteArray typeName(Type type);
+
+    static bool matchSubstring(const char *dataPtr, int dataSize, int rangeStart, int rangeLength, int valueLength, const char *valueData, const char *mask);
+
+private:
+    const QScopedPointer<QMimeMagicRulePrivate> d;
+};
+
+QT_END_NAMESPACE
+
+#endif // QMIMEMAGICRULE_H