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c22c2482f3
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@5589 a592a061-630c-0410-9148-cb99ea01b6c8
76 lines
1.7 KiB
C++
76 lines
1.7 KiB
C++
// -*- C++ -*-
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#ifndef MATH_ITERATOR_H
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#define MATH_ITERATOR_H
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#ifdef __GNUG__
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#pragma interface
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#endif
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#include "math_pos.h"
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#include <vector>
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// this is used for traversing math insets
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class MathIterator : private std::vector<MathCursorPos> {
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public:
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// re-use inherited stuff
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typedef std::vector<MathCursorPos> base_type;
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using base_type::clear;
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using base_type::size;
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using base_type::push_back;
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using base_type::pop_back;
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using base_type::back;
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using base_type::begin;
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using base_type::end;
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using base_type::erase;
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using base_type::operator[];
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using base_type::size_type;
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using base_type::difference_type;
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using base_type::const_iterator;
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friend bool operator!=(MathIterator const &, MathIterator const &);
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friend bool operator==(MathIterator const &, MathIterator const &);
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/// default constructor
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MathIterator();
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/// start with given inset
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explicit MathIterator(MathInset * p);
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///
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MathCursorPos const & operator*() const;
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///
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MathCursorPos const & operator->() const;
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/// move on one step
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void operator++();
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/// move on several steps
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void jump(difference_type);
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/// read access to top most inset
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MathInset const * par() const;
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/// read access to top most inset
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MathInset * par();
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/// helper for iend
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void goEnd();
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/// read access to top most item
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MathArray const & cell() const;
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/// is this a non-end position
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bool normal() const;
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/// shrinks to at most i levels
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void shrink(size_type i);
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private:
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/// own level down
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void push(MathInset *);
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/// own level up
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void pop();
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};
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///
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bool operator==(MathIterator const &, MathIterator const &);
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///
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bool operator!=(MathIterator const &, MathIterator const &);
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///
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MathIterator ibegin(MathInset * p);
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///
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MathIterator iend(MathInset * p);
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#endif
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