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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@6790 a592a061-630c-0410-9148-cb99ea01b6c8
182 lines
5.1 KiB
C++
182 lines
5.1 KiB
C++
// -*- C++ -*-
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/**
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* You are free to use and modify this code under the terms of
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* the GNU General Public Licence version 2 or later.
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*/
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/** \class MathArray
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\brief Low level container for math insets
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* \author Alejandro Aguilar Sierra
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* \author André Pönitz
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* \author Lars Gullik Bjønnes
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*
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* Full author contact details are available in file CREDITS
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\version February 2001
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*/
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#ifndef MATH_DATA_H
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#define MATH_DATA_H
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#include <iosfwd>
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#include <vector>
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#include "math_atom.h"
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#include "dimension.h"
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class MathMacro;
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class LaTeXFeatures;
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class ReplaceData;
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class MetricsInfo;
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class PainterInfo;
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class TextMetricsInfo;
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class TextPainter;
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class MathArray : private std::vector<MathAtom> {
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public:
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/// re-use inhertited stuff
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typedef std::vector<MathAtom> base_type;
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using base_type::const_iterator;
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using base_type::iterator;
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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::size;
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using base_type::empty;
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using base_type::clear;
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using base_type::begin;
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using base_type::end;
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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::front;
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using base_type::swap;
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///
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typedef size_type idx_type;
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typedef size_type pos_type;
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public:
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///
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MathArray();
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///
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MathArray(const_iterator from, const_iterator to);
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///
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void append(MathArray const & ar);
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/// inserts single atom at position pos
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void insert(size_type pos, MathAtom const & at);
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/// inserts multiple atoms at position pos
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void insert(size_type pos, MathArray const & ar);
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/// erase range from pos1 to pos2
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void erase(iterator pos1, iterator pos2);
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/// erase single atom
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void erase(iterator pos);
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/// erase range from pos1 to pos2
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void erase(size_type pos1, size_type pos2);
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/// erase single atom
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void erase(size_type pos);
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///
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void dump() const;
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///
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void dump2() const;
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///
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void substitute(MathMacro const & macro);
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///
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void replace(ReplaceData &);
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/// looks for exact match
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bool match(MathArray const & ar) const;
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/// looks for inclusion match starting at pos
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bool matchpart(MathArray const & ar, pos_type pos) const;
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/// looks for containment, return == size mean not found
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size_type find(MathArray const & ar) const;
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/// looks for containment, return == size mean not found
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size_type find_last(MathArray const & ar) const;
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///
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bool contains(MathArray const & ar) const;
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///
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void validate(LaTeXFeatures &) const;
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/// checked write access
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MathAtom & operator[](pos_type);
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/// checked read access
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MathAtom const & operator[](pos_type) const;
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/// rebuild cached metrics information
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Dimension const & metrics(MetricsInfo & mi) const;
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/// redraw cell using cache metrics information
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void draw(PainterInfo & pi, int x, int y) const;
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/// rebuild cached metrics information
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Dimension const & metricsT(TextMetricsInfo const & mi) const;
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/// redraw cell using cache metrics information
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void drawT(TextPainter & pi, int x, int y) const;
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/// mark cell for re-drawing
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void touch() const;
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/// access to cached x coordinate of last drawing
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int xo() const { return xo_; }
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/// access to cached y coordinate of last drawing
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int yo() const { return yo_; }
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/// access to cached x coordinate of mid point of last drawing
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int xm() const { return xo_ + dim_.w / 2; }
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/// access to cached y coordinate of mid point of last drawing
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int ym() const { return yo_ + (dim_.d - dim_.a) / 2; }
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/// write access to coordinate;
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void setXY(int x, int y) const;
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/// returns x coordinate of given position in the array
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int pos2x(size_type pos) const;
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/// returns position of given x coordinate
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int pos2x(size_type pos, int glue) const;
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/// returns position of given x coordinate
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size_type x2pos(int pos) const;
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/// returns position of given x coordinate fstarting from a certain pos
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size_type x2pos(int targetx, int glue) const;
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/// returns distance of this cell to the point given by x and y
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// assumes valid position and size cache
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int dist(int x, int y) const;
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/// ascent of this cell above the baseline
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int ascent() const { return dim_.a; }
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/// descent of this cell below the baseline
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int descent() const { return dim_.d; }
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/// height of the cell
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int height() const { return dim_.a + dim_.d; }
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/// width of this cell
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int width() const { return dim_.w; }
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/// dimensions of cell
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Dimension const & dim() const { return dim_; }
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/// dimensions of cell
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void setDim(Dimension const & d) const { dim_ = d; }
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/// bounding box of this cell
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void boundingBox(int & xlow, int & xhigh, int & ylow, int & yhigh);
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/// gives center coordinates
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void center(int & x, int & y) const;
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/// adjust (x,y) to point on boundary on a straight line from the center
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void towards(int & x, int & y) const;
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/// clean up if necessary
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void notifyCursorLeaves();
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private:
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/// is this an exact match at this position?
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bool find1(MathArray const & ar, size_type pos) const;
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/// cached dimensions of cell
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mutable Dimension dim_;
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/// cached x coordinate of last drawing
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mutable int xo_;
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/// cached y coordinate of last drawing
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mutable int yo_;
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/// cached cleaness of cell
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mutable bool clean_;
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/// cached draw status of cell
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mutable bool drawn_;
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};
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///
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std::ostream & operator<<(std::ostream & os, MathArray const & ar);
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#endif
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