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/* -*- 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 .
*/
#ifndef INCLUDED_FONTCHARMAP_HXX
#define INCLUDED_FONTCHARMAP_HXX
#include <vcl/dllapi.h>
#include <vcl/font.hxx>
#include <vcl/outdev.hxx>
class ImplFontCharMap;
class CmapResult;
typedef sal_uInt32 sal_UCS4;
typedef tools::SvRef<ImplFontCharMap> ImplFontCharMapRef;
typedef tools::SvRef<FontCharMap> FontCharMapRef;
class VCL_DLLPUBLIC FontCharMap : public SvRefBase
{
public:
/** A new FontCharMap is created based on a "default" map, which includes
all codepoints in the Unicode BMP range, including surrogates.
**/
FontCharMap();
FontCharMap( const CmapResult& rCR );
virtual ~FontCharMap() override;
/** Get the default font character map
@returns the default font character map.
*/
static FontCharMapRef GetDefaultMap( bool bSymbols );
/** Determines if the font character map is the "default". The default map
includes all codepoints in the Unicode BMP range, including surrogates.
@returns true if default map, false if not default map.
*/
bool IsDefaultMap() const;
/** Does the font character map include the UCS4 character?
@returns true if character exists in font character map, false is not.
*/
bool HasChar( sal_UCS4 ) const;
/** Returns the number of chars supported by the font, which
are inside the unicode range from cMin to cMax (inclusive).
@param cMin Lowest codepoint in range to be counted
@param cMax Highest codepoint in range to be counted
@returns number of characters in the font charmap between the two
codepoints.
*/
int CountCharsInRange( sal_UCS4 cMin, sal_UCS4 cMax ) const;
/** Get the number of characters in the font character map.
@returns number of characters in the font character map.
*/
int GetCharCount() const;
/** Get the first character in the font character map.
@returns first character in the font character map.
*/
sal_UCS4 GetFirstChar() const;
/** Get the last character in the font character map.
@returns last character in the font character map.
*/
sal_UCS4 GetLastChar() const;
/** Get the next character in the font character map. This is important
because character maps (e.g. the default map which holds the characters
in the BMP plane) can have discontiguous ranges.
@param cChar Character from which to find next character
@returns next character in the font character map.
*/
sal_UCS4 GetNextChar( sal_UCS4 cChar ) const;
/** Get the previous character in the font character map. This is important
because character maps (e.g. the default map which holds the characters
in the BMP plane) can have discontiguous ranges.
@param cChar Character from which to find previous character
@returns previous character in the font character map.
*/
sal_UCS4 GetPrevChar( sal_UCS4 cChar ) const;
/** Get the index of a particular character in the font character map. The
index is different from the codepoint, because font character maps can
determine the index.
@param cChar Character used to find index number
@returns Index of character in font character map.
*/
int GetIndexFromChar( sal_UCS4 cChar ) const;
/** Get the character at a particular index in the font character map. The
index is different from the codepoint, because font character maps can
determine the character.
@param nCharIndex Index used to find the character
@returns Character in font character map.
*/
sal_UCS4 GetCharFromIndex( int nCharIndex ) const;
int GetGlyphIndex( sal_UCS4 ) const;
private:
ImplFontCharMapRef mpImplFontCharMap;
friend class ::OutputDevice;
int findRangeIndex( sal_uInt32 ) const;
FontCharMap( ImplFontCharMapRef const & pIFCMap );
// prevent assignment and copy construction
FontCharMap( const FontCharMap& ) = delete;
void operator=( const FontCharMap& ) = delete;
};
// CmapResult is a normalized version of the many CMAP formats
class VCL_PLUGIN_PUBLIC CmapResult
{
public:
explicit CmapResult( bool bSymbolic = false,
const sal_uInt32* pRangeCodes = nullptr, int nRangeCount = 0 );
const sal_uInt32* mpRangeCodes;
const int* mpStartGlyphs;
const sal_uInt16* mpGlyphIds;
int mnRangeCount;
bool mbSymbolic;
bool mbRecoded;
};
#endif // INCLUDED_FONTCHARMAP_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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