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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_VCL_METRIC_HXX
#define INCLUDED_VCL_METRIC_HXX
#include <vcl/dllapi.h>
#include <vcl/font.hxx>
#include <vcl/outdev.hxx>
#include <boost/intrusive_ptr.hpp>
class ImplFontMetric;
class ImplFontCharMap;
class CmapResult;
typedef sal_uInt32 sal_UCS4;
typedef boost::intrusive_ptr< ImplFontCharMap > ImplFontCharMapPtr;
typedef boost::intrusive_ptr< FontCharMap > FontCharMapPtr;
class VCL_DLLPUBLIC FontMetric : public vcl::Font
{
friend class ::OutputDevice;
public:
FontMetric();
FontMetric( const FontMetric& );
~FontMetric();
FontType GetType() const;
long GetAscent() const;
long GetDescent() const;
long GetIntLeading() const;
long GetExtLeading() const;
long GetLineHeight() const;
long GetSlant() const;
bool IsFullstopCentered() const;
long GetBulletOffset() const;
FontMetric& operator=( const FontMetric& rMetric );
bool operator==( const FontMetric& rMetric ) const;
bool operator!=( const FontMetric& rMetric ) const
{ return !operator==( rMetric ); }
protected:
ImplFontMetric* mpImplMetric; // Implementation
};
template< typename charT, typename traits >
inline std::basic_ostream<charT, traits> & operator <<(
std::basic_ostream<charT, traits> & stream, const FontMetric& rMetric )
{
stream << "{"
<< "name=" << "\"" << rMetric.GetName() << "\""
<< ",size=(" << rMetric.GetSize().Width() << "," << rMetric.GetSize().Height() << ")"
<< ",ascent=" << rMetric.GetAscent()
<< ",descent=" << rMetric.GetDescent()
<< ",intLeading=" << rMetric.GetIntLeading()
<< ",extLeading=" << rMetric.GetExtLeading()
<< ",lineHeight=" << rMetric.GetLineHeight()
<< ",slant=" << rMetric.GetSlant()
<< "}";
return stream;
}
class VCL_DLLPUBLIC FontCharMap
{
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 );
~FontCharMap();
/** Get the default font character map
@returns the default font character map.
*/
static FontCharMapPtr GetDefaultMap( bool bSymbols=false );
/** 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 codepoitn 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:
ImplFontCharMapPtr mpImplFontCharMap;
friend class ::OutputDevice;
friend void intrusive_ptr_release(FontCharMap* pFontCharMap);
friend void intrusive_ptr_add_ref(FontCharMap* pFontCharMap);
int findRangeIndex( sal_uInt32 ) const;
FontCharMap( ImplFontCharMapPtr pIFCMap );
sal_uInt32 mnRefCount;
// prevent assignment and copy construction
FontCharMap( const FontCharMap& ) = delete;
void operator=( const FontCharMap& ) = delete;
};
inline void intrusive_ptr_add_ref(FontCharMap* pFontCharMap)
{
++pFontCharMap->mnRefCount;
}
inline void intrusive_ptr_release(FontCharMap* pFontCharMap)
{
if (--pFontCharMap->mnRefCount == 0)
delete pFontCharMap;
}
class VCL_DLLPUBLIC TextRectInfo
{
friend class ::OutputDevice;
private:
long mnMaxWidth;
sal_uInt16 mnLineCount;
bool mbEllipsis;
public:
TextRectInfo();
long GetMaxLineWidth() const { return mnMaxWidth; }
bool IsEllipses() const { return mbEllipsis; }
bool operator ==( const TextRectInfo& rInfo ) const
{ return ((mnMaxWidth == rInfo.mnMaxWidth) &&
(mnLineCount == rInfo.mnLineCount) &&
(mbEllipsis == rInfo.mbEllipsis)); }
bool operator !=( const TextRectInfo& rInfo ) const
{ return !(TextRectInfo::operator==( rInfo )); }
};
inline TextRectInfo::TextRectInfo()
{
mnMaxWidth = 0;
mnLineCount = 0;
mbEllipsis = false;
}
#endif // INCLUDED_VCL_METRIC_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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