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xmp.h

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00001 /****************************************************************************
00002 **
00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
00004 ** Contact: Alexander Bokovoy <alexander.bokovoy@nokia.com>
00005 **
00006 ** This file is part of the Quill Metadata package.
00007 **
00008 ** Commercial Usage
00009 ** Licensees holding valid Qt Commercial licenses may use this file in
00010 ** accordance with the Qt Commercial License Agreement provided with the
00011 ** Software or, alternatively, in accordance with the terms contained in
00012 ** a written agreement between you and Nokia.
00013 **
00014 ** GNU Lesser General Public License Usage
00015 ** Alternatively, this file may be used under the terms of the GNU Lesser
00016 ** General Public License version 2.1 as published by the Free Software
00017 ** Foundation and appearing in the file LICENSE.LGPL included in the
00018 ** packaging of this file.  Please review the following information to
00019 ** ensure the GNU Lesser General Public License version 2.1 requirements
00020 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
00021 **
00022 ** In addition, as a special exception, Nokia gives you certain
00023 ** additional rights. These rights are described in the Nokia Qt LGPL
00024 ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
00025 ** package.
00026 **
00027 ** GNU General Public License Usage
00028 ** Alternatively, this file may be used under the terms of the GNU
00029 ** General Public License version 3.0 as published by the Free Software
00030 ** Foundation and appearing in the file LICENSE.GPL included in the
00031 ** packaging of this file.  Please review the following information to
00032 ** ensure the GNU General Public License version 3.0 requirements will be
00033 ** met: http://www.gnu.org/copyleft/gpl.html.
00034 **
00035 ** If you are unsure which license is appropriate for your use, please
00036 ** contact the sales department at qt-sales@nokia.com.
00037 **
00038 ****************************************************************************/
00039 
00040 #ifndef XMP_H
00041 #define XMP_H
00042 
00043 #include <exempi-2.0/exempi/xmp.h>
00044 #include <QHash>
00045 
00046 #include "metadatarepresentation.h"
00047 
00048 
00049 class XmpTag {
00050 public:
00051     enum TagType {
00052         TagTypeString,
00053         TagTypeStringList,
00054         TagTypeAltLang
00055     };
00056 
00057     XmpTag(const QString &schema, const QString &tag, TagType tagType);
00058 
00059     QString schema;
00060     QString tag;
00061     TagType tagType;
00062 };
00063 
00064 class Xmp : public MetadataRepresentation
00065 {
00066  public:
00067 
00068     Xmp();
00069     Xmp(const QString &fileName);
00070     ~Xmp();
00071 
00072     bool isValid() const;
00073 
00074     bool supportsEntry(QuillMetadata::Tag tag) const;
00075     bool hasEntry(QuillMetadata::Tag tag) const;
00076     QVariant entry(QuillMetadata::Tag tag) const;
00077     void setEntry(QuillMetadata::Tag tag, const QVariant &entry);
00078     void removeEntry(QuillMetadata::Tag tag);
00079 
00080     bool write(const QString &fileName) const;
00081 
00082  private:
00083     void initTags();
00084 
00085     static QString processXmpString(XmpStringPtr xmpString);
00086 
00087     void setXmpEntry(QuillMetadata::Tag tag, const QVariant &entry);
00088 
00089  private:
00090     static QHash<QuillMetadata::Tag,XmpTag> m_xmpTags;
00091 
00092     XmpPtr m_xmpPtr;
00093 
00094     static bool m_initialized;
00095 };
00096 
00097 #endif

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