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2ea432bab1
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@20015 a592a061-630c-0410-9148-cb99ea01b6c8
68 lines
1.3 KiB
C++
68 lines
1.3 KiB
C++
// -*- C++ -*-
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/**
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* \file src/FontIterator.h
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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 Alfredo Braunstein
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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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*
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* Calling Text::getFont is slow. While rebreaking we scan a
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* paragraph from left to right calling getFont for every char. This
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* simple class address this problem by hidding an optimization trick
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* (not mine btw -AB): the font is reused in the whole font span. The
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* class handles transparently the "hidden" (not part of the fontlist)
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* label font (as getFont does).
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*/
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#ifndef FONTITERATOR_H
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#define FONTITERATOR_H
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#include "Font.h"
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#include "support/types.h"
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namespace lyx {
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class Paragraph;
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class TextMetrics;
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class FontIterator : std::iterator<std::forward_iterator_tag, Font>
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{
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public:
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///
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FontIterator(TextMetrics const & tm,
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Paragraph const & par, pit_type pit, pos_type pos);
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///
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Font const & operator*() const;
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///
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FontIterator & operator++();
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///
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Font * operator->();
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private:
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///
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TextMetrics const & tm_;
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///
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Paragraph const & par_;
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///
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pit_type pit_;
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///
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pos_type pos_;
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///
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Font font_;
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///
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pos_type endspan_;
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///
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pos_type bodypos_;
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};
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} // namespace lyx
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#endif // FONTITERATOR_H
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