include/vcl/filter/pdfobjectcontainer.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 <sal/types.h>
  13
  14 namespace vcl
  15 {
  16 /// Allows creating, updating and writing PDF objects in a container.
  17 class SAL_NO_VTABLE SAL_DLLPUBLIC_RTTI PDFObjectContainer
  18 {
  19 public:
  20     /* adds an entry to m_aObjects and returns its index+1,
  21      * sets the offset to ~0
  22      */
  23     virtual sal_Int32 createObject() = 0;
  24     /* sets the offset of object n to the current position of output file+1
  25      */
  26     virtual bool updateObject(sal_Int32 n) = 0;
  27
  28     // Write pBuffer to the end of the output.
  29     virtual bool writeBuffer(const void* pBuffer, sal_uInt64 nBytes) = 0;
  30
  31 protected:
  32     ~PDFObjectContainer() noexcept = default;
  33 };
  34 }
  35
  36 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */