vcl/source/filter/jpeg/jpeg.cxx

   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 #include "JpegReader.hxx"
  21 #include "JpegWriter.hxx"
  22 #include "jpeg.hxx"
  23
  24 #include <vcl/bmpacc.hxx>
  25 #include <vcl/FilterConfigItem.hxx>
  26 #include <vcl/graphicfilter.hxx>
  27
  28 bool ImportJPEG( SvStream& rInputStream, Graphic& rGraphic, void* pCallerData, GraphicFilterImportFlags nImportFlags )
  29 {
  30     ReadState   eReadState;
  31     bool        bReturn = true;
  32
  33     JPEGReader* pJPEGReader = static_cast<JPEGReader*>( rGraphic.GetContext() );
  34
  35     if( !pJPEGReader )
  36     {
  37         pJPEGReader = new JPEGReader( rInputStream, pCallerData, bool( nImportFlags & GraphicFilterImportFlags::SetLogsizeForJpeg ) );
  38     }
  39
  40     if( nImportFlags & GraphicFilterImportFlags::ForPreview )
  41     {
  42         pJPEGReader->SetPreviewSize( Size(128,128) );
  43     }
  44     else
  45     {
  46         pJPEGReader->DisablePreviewMode();
  47     }
  48
  49     rGraphic.SetContext( NULL );
  50     eReadState = pJPEGReader->Read( rGraphic );
  51
  52     if( eReadState == JPEGREAD_ERROR )
  53     {
  54         bReturn = false;
  55         delete pJPEGReader;
  56     }
  57     else if( eReadState == JPEGREAD_OK )
  58     {
  59         delete pJPEGReader;
  60     }
  61     else
  62     {
  63         rGraphic.SetContext( pJPEGReader );
  64     }
  65
  66     return bReturn;
  67 }
  68
  69 bool ExportJPEG(SvStream& rOutputStream, const Graphic& rGraphic,
  70                     const com::sun::star::uno::Sequence<com::sun::star::beans::PropertyValue>* pFilterData,
  71                     bool* pExportWasGrey)
  72 {
  73     JPEGWriter aJPEGWriter( rOutputStream, pFilterData, pExportWasGrey );
  74     bool bReturn = aJPEGWriter.Write( rGraphic );
  75     return bReturn;
  76 }
  77
  78 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */