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8f98ec35e4
http://bugzilla.lyx.org/show_bug.cgi?id=2900 The only drawback is that it requires about 20Mo extra-memory when loading the UserGuide. If it turns out to be too much, we can switch to a QHash based solution instead of a table. * dimension.[Ch]: - Dimension(LyXFont const, char_typec): new ctor - set(LyXFont const & font, char_type c): new method. * frontends/FontMetrics.h: - width(char_type): is now a pure virtual method. * GuiFontMetrics: - CharMetrics: new structure; - the metrics cache now also cache ascent and descent. This is especially useful for mathed. * MathSupport.[Ch]: - mathed_char_dim(): deleted. We now use Dimension::set() directly instead. * rowpainter.C: fixe empty space. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@16124 a592a061-630c-0410-9148-cb99ea01b6c8
48 lines
840 B
C
48 lines
840 B
C
/**
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* \file dimension.C
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author André Pönitz
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "dimension.h"
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#include "frontends/FontMetrics.h"
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namespace lyx {
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void Dimension::operator+=(Dimension const & dim)
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{
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if (asc < dim.asc)
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asc = dim.asc;
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if (des < dim.des)
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des = dim.des;
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wid += dim.wid;
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}
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void Dimension::clear(LyXFont const & font)
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{
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frontend::FontMetrics const & fm = theFontMetrics(font);
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asc = fm.maxAscent();
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des = fm.maxDescent();
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wid = 0;
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}
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void Dimension::set(LyXFont const & font, char_type c)
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{
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frontend::FontMetrics const & fm = theFontMetrics(font);
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des = fm.descent(c);
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asc = fm.ascent(c);
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wid = fm.width(c);
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}
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} // namespace lyx
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