include/vcl/filter/PngImageWriter.hxx

   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
  10 #include <vcl/dllapi.h>
  11 #include <com/sun/star/task/XStatusIndicator.hpp>
  12 #include <com/sun/star/beans/PropertyValue.hpp>
  13 #include <com/sun/star/uno/Sequence.hxx>
  14 #include <tools/stream.hxx>
  15 #include <vcl/bitmapex.hxx>
  16 #include <vector>
  17
  18 #pragma once
  19
  20 namespace vcl
  21 {
  22 // Similar to png_unknown_chunk
  23 struct PngChunk
  24 {
  25     std::array<uint8_t, 5> name;
  26     std::vector<sal_uInt8> data;
  27     size_t size;
  28 };
  29 class VCL_DLLPUBLIC PngImageWriter
  30 {
  31     SvStream& mrStream;
  32     css::uno::Reference<css::task::XStatusIndicator> mxStatusIndicator;
  33
  34     sal_Int32 mnCompressionLevel;
  35     bool mbInterlaced, mbTranslucent;
  36     std::vector<PngChunk> maAdditionalChunks;
  37
  38 public:
  39     PngImageWriter(SvStream& rStream);
  40
  41     void setParameters(css::uno::Sequence<css::beans::PropertyValue> const& rParameters);
  42     bool write(const BitmapEx& rBitmap);
  43 };
  44
  45 } // namespace vcl
  46
  47 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */