lyx_mirror/src/mathed/math_iterator.h
André Pönitz 11398a3316 move things around
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4798 a592a061-630c-0410-9148-cb99ea01b6c8
2002-07-26 14:11:19 +00:00

67 lines
1.5 KiB
C++

// -*- C++ -*-
#ifndef MATH_ITERATOR_H
#define MATH_ITERATOR_H
#include "math_pos.h"
#include <vector>
// this is used for traversing math insets
class MathIterator : private std::vector<MathCursorPos> {
public:
// re-use inherited stuff
typedef std::vector<MathCursorPos> base_type;
using base_type::clear;
using base_type::size;
using base_type::push_back;
using base_type::pop_back;
using base_type::back;
using base_type::begin;
using base_type::end;
using base_type::operator[];
using base_type::size_type;
using base_type::difference_type;
using base_type::const_iterator;
friend bool operator!=(MathIterator const &, MathIterator const &);
friend bool operator==(MathIterator const &, MathIterator const &);
/// default constructor
MathIterator();
/// start with given inset
explicit MathIterator(MathInset * p);
///
MathCursorPos const & operator*() const;
///
MathCursorPos const & operator->() const;
/// move on one step
void operator++();
/// move on several steps
void jump(difference_type);
/// read access to top most inset
MathInset const * par() const;
/// read access to top most inset
MathInset * par();
/// helper for iend
void goEnd();
/// read access to top most item
MathArray const & cell() const;
private:
/// own level down
void push(MathInset *);
/// own level up
void pop();
};
///
bool operator==(MathIterator const &, MathIterator const &);
///
bool operator!=(MathIterator const &, MathIterator const &);
///
MathIterator ibegin(MathInset * p);
///
MathIterator iend(MathInset * p);
#endif