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dec437fbac
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@35362 a592a061-630c-0410-9148-cb99ea01b6c8
132 lines
3.0 KiB
C++
132 lines
3.0 KiB
C++
/**
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* \file FontList.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 Abdelrazak Younes
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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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#ifndef FONT_LIST_H
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#define FONT_LIST_H
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#include "Font.h"
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#include "support/types.h"
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#include <vector>
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namespace lyx {
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/** A font entry covers a range of positions. Notice that the
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entries in the list are inserted in random order.
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I don't think it's worth the effort to implement a more effective
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datastructure, because the number of different fonts in a paragraph
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is limited. (Asger)
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Nevertheless, I decided to store fontlist_ using a sorted vector:
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fontlist_ = { {pos_1,font_1} , {pos_2,font_2} , ... } where
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pos_1 < pos_2 < ..., font_{i-1} != font_i for all i,
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and font_i covers the chars in positions pos_{i-1}+1,...,pos_i
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(font_1 covers the chars 0,...,pos_1) (Dekel)
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*/
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class FontTable
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{
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public:
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///
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FontTable(pos_type p, Font const & f)
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: pos_(p), font_(f)
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{}
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///
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pos_type pos() const { return pos_; }
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///
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void pos(pos_type p) { pos_ = p; }
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///
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Font const & font() const { return font_; }
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///
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void font(Font const & f) { font_ = f;}
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private:
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friend class FontList;
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/// End position of paragraph this font attribute covers
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pos_type pos_;
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/** Font. Interpretation of the font values:
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If a value is Font::INHERIT_*, it means that the font
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attribute is inherited from either the layout of this
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paragraph or, in the case of nested paragraphs, from the
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layout in the environment one level up until completely
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resolved.
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The values Font::IGNORE_* and FONT_TOGGLE are NOT
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allowed in these font tables.
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*/
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Font font_;
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};
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class LaTeXFeatures;
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///
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class FontList
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{
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public:
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typedef std::vector<FontTable> List;
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///
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typedef List::iterator iterator;
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///
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typedef List::const_iterator const_iterator;
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///
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iterator begin() { return list_.begin(); }
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///
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iterator end() { return list_.end(); }
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///
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const_iterator begin() const { return list_.begin(); }
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///
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const_iterator end() const { return list_.end(); }
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///
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bool empty() const { return list_.empty(); }
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///
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void clear() { list_.clear(); }
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///
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void erase(pos_type pos);
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///
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iterator fontIterator(pos_type pos);
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///
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const_iterator fontIterator(pos_type pos) const;
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///
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Font & get(pos_type pos);
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///
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void set(pos_type pos, Font const & font);
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///
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void setRange(
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pos_type startpos,
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pos_type endpos,
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Font const & font);
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///
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void increasePosAfterPos(pos_type pos);
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///
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void decreasePosAfterPos(pos_type pos);
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/// Returns the height of the highest font in range
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FontSize highestInRange(
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pos_type startpos,
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pos_type endpos,
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FontSize def_size
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) const;
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/// is there a font change in middle of the word?
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bool hasChangeInRange(
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pos_type pos, ///< position in the paragraph.
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int len ///< length of the range to check.
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) const;
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///
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void validate(LaTeXFeatures & features) const;
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private:
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///
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List list_;
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};
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} // namespace lyx
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#endif
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