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       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             : 
      20             : #ifndef INCLUDED_VCL_PNGREAD_HXX
      21             : #define INCLUDED_VCL_PNGREAD_HXX
      22             : 
      23             : #include <vcl/dllapi.h>
      24             : #include <vcl/bitmapex.hxx>
      25             : #include <vector>
      26             : 
      27             : namespace vcl
      28             : {
      29             : 
      30             : class PNGReaderImpl;
      31             : 
      32             : class VCL_DLLPUBLIC PNGReader
      33             : {
      34             :     std::unique_ptr<PNGReaderImpl> mpImpl;
      35             : 
      36             : public:
      37             : 
      38             :     /* the PNG chunks are read within the c'tor, so the stream will
      39             :     be positioned at the end of the PNG */
      40             :     explicit PNGReader(SvStream& rStream);
      41             :     ~PNGReader();
      42             : 
      43             :     /* an empty preview size hint (=default) will read the whole image
      44             :     */
      45             :     BitmapEx Read(const Size& i_rPreviewHint = Size());
      46             : 
      47             :     // retrieve every chunk that resides inside the PNG
      48      126900 :     struct ChunkData
      49             :     {
      50             :         sal_uInt32 nType;
      51             :         std::vector<sal_uInt8> aData;
      52             :     };
      53             :     const std::vector<ChunkData>& GetChunks() const;
      54             : 
      55             :     void SetIgnoreGammaChunk(bool bIgnoreGammaChunk);
      56             : };
      57             : 
      58             : } // end namespace vcl
      59             : 
      60             : #endif // INCLUDED_VCL_PNGREAD_HXX
      61             : 
      62             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */