/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#pragma once
#include <rtl/ustring.hxx>
#include <tools/gen.hxx>
#include <o3tl/typed_flags_set.hxx>
#include <vcl/dllapi.h>
#include "glyphid.hxx"
class SvStream;
enum class FontType {
NO_FONT = 0,
SFNT_TTF = 1<<1,
///< SFNT container with TrueType glyphs
SFNT_CFF = 1<<2,
///< SFNT container with CFF-container
TYPE1_PFA = 1<<3,
///< PSType1 Postscript Font Ascii
TYPE1_PFB = 1<<4,
///< PSType1 Postscript Font Binary
CFF_FONT = 1<<5,
///< CFF-container with PSType2 glyphs
ANY_SFNT = SFNT_TTF | SFNT_CFF,
ANY_TYPE1 = TYPE1_PFA | TYPE1_PFB
};
namespace o3tl {
template<>
struct typed_flags<FontType> : is_typed_flags<FontType, (1<<8)-1> {};
}
class VCL_DLLPUBLIC FontSubsetInfo final
{
public:
SAL_DLLPRIVATE
explicit FontSubsetInfo();
SAL_DLLPRIVATE ~FontSubsetInfo();
SAL_DLLPRIVATE
void LoadFont( FontType eInFontType,
const unsigned char* pFontBytes,
int nByteLength );
SAL_DLLPRIVATE
bool CreateFontSubset( FontType nOutFontTypeMask,
SvStream* pOutFile,
const sal_GlyphId* pGlyphIds,
const sal_uInt8* pEncodedIds,
int nReqGlyphCount);
public:
// TODO: make subsetter results private and provide accessor methods instead
// subsetter-provided subset details needed by e.g. Postscript or PDF
OUString m_aPSName;
int m_nAscent;
///< all metrics in PS font units
int m_nDescent;
int m_nCapHeight;
tools::Rectangle m_aFontBBox;
FontType m_nFontType;
///< font-type of subset result
bool m_bFilled;
private:
// input-font-specific details
unsigned const char* mpInFontBytes;
int mnInByteLength;
FontType meInFontType;
///< allowed mask of input font-types
// subset-request details
FontType mnReqFontTypeMask;
///< allowed subset-target font types
SvStream* mpOutFile;
OString maReqFontName;
const sal_GlyphId* mpReqGlyphIds;
const sal_uInt8* mpReqEncodedIds;
int mnReqGlyphCount;
SAL_DLLPRIVATE
bool CreateFontSubsetFromCff();
};
int VCL_DLLPUBLIC TestFontSubset(
const void* data, sal_uInt32 size);
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