vcl/inc/pdf/pdfcompat.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 #pragma once
  11
  12 #include <o3tl/unit_conversion.hxx>
  13 #include <tools/stream.hxx>
  14 #include <vcl/BinaryDataContainer.hxx>
  15
  16 namespace vcl::pdf
  17 {
  18 /// Convert to inch, then apply custom resolution.
  19 inline double pointToPixel(const double fPoint, const double fResolutionDPI)
  20 {
  21     return o3tl::convert(fPoint, o3tl::Length::pt, o3tl::Length::in) * fResolutionDPI;
  22 }
  23
  24 /// Decide if PDF data is old enough to be compatible.
  25 bool isCompatible(SvStream& rInStream, sal_uInt64 nPos, sal_uInt64 nSize);
  26
  27 /// Converts to highest supported format version (currently 1.6).
  28 /// Usually used to deal with missing referenced objects in the
  29 /// source pdf stream.
  30 bool convertToHighestSupported(SvStream& rInStream, SvStream& rOutStream);
  31
  32 /// Takes care of transparently downgrading the version of the PDF stream in
  33 /// case it's too new for our PDF export.
  34 bool getCompatibleStream(SvStream& rInStream, SvStream& rOutStream);
  35
  36 BinaryDataContainer createBinaryDataContainer(SvStream& rStream);
  37
  38 } // end of vcl::filter::ipdf namespace
  39
  40 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */