4 * This file is part of LyX, the document processor.
5 * Licence details can be found in the file COPYING.
7 * \author Alejandro Aguilar Sierra
9 * \author Lars Gullik Bjønnes
11 * Full author contact details are available in file CREDITS.
20 #include "math_atom.h"
21 #include "dimension.h"
27 class TextMetricsInfo;
31 class MathArray : private std::vector<MathAtom> {
33 /// re-use inhertited stuff
34 typedef std::vector<MathAtom> base_type;
35 using base_type::const_iterator;
36 using base_type::iterator;
37 using base_type::size_type;
38 using base_type::difference_type;
39 using base_type::size;
40 using base_type::empty;
41 using base_type::clear;
42 using base_type::begin;
44 using base_type::push_back;
45 using base_type::pop_back;
46 using base_type::back;
47 using base_type::front;
48 using base_type::swap;
50 typedef size_type idx_type;
51 typedef size_type pos_type;
57 MathArray(const_iterator from, const_iterator to);
59 void append(MathArray const & ar);
61 /// inserts single atom at position pos
62 void insert(size_type pos, MathAtom const & at);
63 /// inserts multiple atoms at position pos
64 void insert(size_type pos, MathArray const & ar);
66 /// erase range from pos1 to pos2
67 void erase(iterator pos1, iterator pos2);
69 void erase(iterator pos);
70 /// erase range from pos1 to pos2
71 void erase(size_type pos1, size_type pos2);
73 void erase(size_type pos);
80 void replace(ReplaceData &);
82 void substitute(MathArray const & m);
84 /// looks for exact match
85 bool match(MathArray const & ar) const;
86 /// looks for inclusion match starting at pos
87 bool matchpart(MathArray const & ar, pos_type pos) const;
88 /// looks for containment, return == size mean not found
89 size_type find(MathArray const & ar) const;
90 /// looks for containment, return == size mean not found
91 size_type find_last(MathArray const & ar) const;
93 bool contains(MathArray const & ar) const;
95 void validate(LaTeXFeatures &) const;
97 /// checked write access
98 MathAtom & operator[](pos_type);
99 /// checked read access
100 MathAtom const & operator[](pos_type) const;
101 /// rebuild cached metrics information
102 void metrics(MetricsInfo & mi) const;
103 /// rebuild cached metrics information
104 void metrics(MetricsInfo & mi, Dimension & dim) const;
105 /// redraw cell using cache metrics information
106 void draw(PainterInfo & pi, int x, int y) const;
107 /// rebuild cached metrics information
108 void metricsT(TextMetricsInfo const & mi, Dimension & dim) const;
109 /// redraw cell using cache metrics information
110 void drawT(TextPainter & pi, int x, int y) const;
111 /// mark cell for re-drawing
114 /// access to cached x coordinate of last drawing
116 /// access to cached y coordinate of last drawing
118 /// access to cached x coordinate of mid point of last drawing
119 int xm() const { return xo() + dim_.wid / 2; }
120 /// access to cached y coordinate of mid point of last drawing
121 int ym() const { return yo() + (dim_.des - dim_.asc) / 2; }
122 /// write access to coordinate;
123 void setXY(int x, int y) const;
124 /// returns x coordinate of given position in the array
125 int pos2x(size_type pos) const;
126 /// returns position of given x coordinate
127 int pos2x(size_type pos, int glue) const;
128 /// returns position of given x coordinate
129 size_type x2pos(int pos) const;
130 /// returns position of given x coordinate fstarting from a certain pos
131 size_type x2pos(int targetx, int glue) const;
132 /// returns distance of this cell to the point given by x and y
133 // assumes valid position and size cache
134 int dist(int x, int y) const;
136 /// ascent of this cell above the baseline
137 int ascent() const { return dim_.asc; }
138 /// descent of this cell below the baseline
139 int descent() const { return dim_.des; }
140 /// height of the cell
141 int height() const { return dim_.asc + dim_.des; }
142 /// width of this cell
143 int width() const { return dim_.wid; }
144 /// dimensions of cell
145 Dimension const & dim() const { return dim_; }
146 /// dimensions of cell
147 void setDim(Dimension const & d) const { dim_ = d; }
150 /// is this an exact match at this position?
151 bool find1(MathArray const & ar, size_type pos) const;
153 /// cached dimensions of cell
154 mutable Dimension dim_;
158 std::ostream & operator<<(std::ostream & os, MathArray const & ar);