LibreOffice Module vcl (master)  1
GraphicNativeMetadata.cxx
Go to the documentation of this file.
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3  * This file is part of the LibreOffice project.
4  *
5  * This Source Code Form is subject to the terms of the Mozilla Public
6  * License, v. 2.0. If a copy of the MPL was not distributed with this
7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8  *
9  * This file incorporates work covered by the following license notice:
10  *
11  * Licensed to the Apache Software Foundation (ASF) under one or more
12  * contributor license agreements. See the NOTICE file distributed
13  * with this work for additional information regarding copyright
14  * ownership. The ASF licenses this file to you under the Apache
15  * License, Version 2.0 (the "License"); you may not use this file
16  * except in compliance with the License. You may obtain a copy of
17  * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18  */
19 
21 #include <vcl/gfxlink.hxx>
22 #include "jpeg/Exif.hxx"
23 #include <memory>
24 
26  : mRotation(0)
27 {
28 }
29 
31 
32 bool GraphicNativeMetadata::read(Graphic const& rGraphic)
33 {
34  GfxLink aLink = rGraphic.GetGfxLink();
35  if (aLink.GetType() != GfxLinkType::NativeJpg)
36  return false;
37 
38  sal_uInt32 aDataSize = aLink.GetDataSize();
39  if (!aDataSize)
40  return false;
41 
42  std::unique_ptr<sal_uInt8[]> aBuffer(new sal_uInt8[aDataSize]);
43 
44  memcpy(aBuffer.get(), aLink.GetData(), aDataSize);
45  SvMemoryStream aMemoryStream(aBuffer.get(), aDataSize, StreamMode::READ);
46 
47  read(aMemoryStream);
48 
49  return true;
50 }
51 
53 {
54  Exif aExif;
55  aExif.read(rStream);
56  mRotation = aExif.getRotation();
57 
58  return true;
59 }
60 
61 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
bool read(SvStream &rStream)
Definition: Exif.cxx:69
GfxLink GetGfxLink() const
Definition: graph.cxx:508
std::unique_ptr< char[]> aBuffer
unsigned char sal_uInt8
Definition: Exif.hxx:42
bool read(Graphic const &rGraphic)
sal_Int32 getRotation() const
Definition: Exif.cxx:52