vcl/source/fontsubset/fontsubset.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
  21 #include <osl/diagnose.h>
  22 #include <sal/log.hxx>
  23
  24 #include <fontsubset.hxx>
  25 #include <sft.hxx>
  26
  27 FontSubsetInfo::FontSubsetInfo()
  28     : m_nAscent( 0)
  29     , m_nDescent( 0)
  30     , m_nCapHeight( 0)
  31     , m_nFontType( FontType::NO_FONT)
  32     , m_bFilled(false)
  33     , mpInFontBytes( nullptr)
  34     , mnInByteLength( 0)
  35     , meInFontType( FontType::NO_FONT)
  36     , mnReqFontTypeMask( FontType::NO_FONT )
  37     , mpOutFile(nullptr)
  38     , mpReqGlyphIds(nullptr)
  39     , mpReqEncodedIds(nullptr)
  40     , mnReqGlyphCount(0)
  41 {
  42 }
  43
  44 FontSubsetInfo::~FontSubsetInfo()
  45 {
  46 }
  47
  48 // prepare subsetting for fonts where the input font file is mapped
  49 void FontSubsetInfo::LoadFont(
  50     FontType eInFontType,
  51     const unsigned char* pInFontBytes, int nInByteLength)
  52 {
  53     meInFontType = eInFontType;
  54     mpInFontBytes = pInFontBytes;
  55     mnInByteLength = nInByteLength;
  56 }
  57
  58 bool FontSubsetInfo::CreateFontSubset(
  59     FontType nReqFontTypeMask,
  60     SvStream* pOutFile,
  61     const sal_GlyphId* pReqGlyphIds, const sal_uInt8* pReqEncodedIds, int nReqGlyphCount)
  62 {
  63     // prepare request details needed by all underlying subsetters
  64     mnReqFontTypeMask = nReqFontTypeMask;
  65     mpOutFile       = pOutFile;
  66     mpReqGlyphIds   = pReqGlyphIds;
  67     mpReqEncodedIds = pReqEncodedIds;
  68     mnReqGlyphCount = nReqGlyphCount;
  69     maReqFontName = m_aPSName.toUtf8();
  70
  71     // TODO: move the glyphid/encid/notdef reshuffling from the callers to here
  72
  73     // dispatch to underlying subsetters
  74     bool bOK = false;
  75
  76     // TODO: better match available input-type to possible subset-types
  77     switch( meInFontType) {
  78     case FontType::CFF_FONT:
  79         bOK = CreateFontSubsetFromCff();
  80         break;
  81     default:
  82         OSL_FAIL( "unhandled type in CreateFontSubset()");
  83         break;
  84     }
  85
  86     return bOK;
  87 }
  88
  89 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */