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 "dimension.h"
22 #include "support/docstream.h"
29 class TextMetricsInfo;
33 class MathArray : private std::vector<MathAtom> {
35 /// re-use inhertited stuff
36 typedef std::vector<MathAtom> base_type;
37 using base_type::const_iterator;
38 using base_type::iterator;
39 using base_type::size_type;
40 using base_type::difference_type;
41 using base_type::size;
42 using base_type::empty;
43 using base_type::clear;
44 using base_type::begin;
46 using base_type::push_back;
47 using base_type::pop_back;
48 using base_type::back;
49 using base_type::front;
50 using base_type::swap;
52 typedef size_type idx_type;
53 typedef size_type pos_type;
59 MathArray(const_iterator from, const_iterator to);
61 void append(MathArray const & ar);
63 /// inserts single atom at position pos
64 void insert(size_type pos, MathAtom const & at);
65 /// inserts multiple atoms at position pos
66 void insert(size_type pos, MathArray const & ar);
68 /// erase range from pos1 to pos2
69 void erase(iterator pos1, iterator pos2);
71 void erase(iterator pos);
72 /// erase range from pos1 to pos2
73 void erase(size_type pos1, size_type pos2);
75 void erase(size_type pos);
82 void replace(ReplaceData &);
84 void substitute(MathArray const & m);
86 /// looks for exact match
87 bool match(MathArray const & ar) const;
88 /// looks for inclusion match starting at pos
89 bool matchpart(MathArray const & ar, pos_type pos) const;
90 /// looks for containment, return == size mean not found
91 size_type find(MathArray const & ar) const;
92 /// looks for containment, return == size mean not found
93 size_type find_last(MathArray const & ar) const;
95 bool contains(MathArray const & ar) const;
97 void validate(LaTeXFeatures &) const;
99 /// checked write access
100 MathAtom & operator[](pos_type);
101 /// checked read access
102 MathAtom const & operator[](pos_type) const;
103 /// rebuild cached metrics information
104 void metrics(MetricsInfo & mi) const;
105 /// rebuild cached metrics information
106 void metrics(MetricsInfo & mi, Dimension & dim) const;
107 /// redraw cell using cache metrics information
108 void draw(PainterInfo & pi, int x, int y) const;
109 /// rebuild cached metrics information
110 void metricsT(TextMetricsInfo const & mi, Dimension & dim) const;
111 /// redraw cell using cache metrics information
112 void drawT(TextPainter & pi, int x, int y) const;
113 /// mark cell for re-drawing
116 /// access to cached x coordinate of last drawing
117 int xo(BufferView & bv) const;
118 /// access to cached y coordinate of last drawing
119 int yo(BufferView & bv) const;
120 /// access to cached x coordinate of mid point of last drawing
121 int xm(BufferView & bv) const { return xo(bv) + dim_.wid / 2; }
122 /// access to cached y coordinate of mid point of last drawing
123 int ym(BufferView & bv) const { return yo(bv) + (dim_.des - dim_.asc) / 2; }
124 /// write access to coordinate;
125 void setXY(BufferView & bv, int x, int y) const;
126 /// returns x coordinate of given position in the array
127 int pos2x(size_type pos) const;
128 /// returns position of given x coordinate
129 int pos2x(size_type pos, int glue) const;
130 /// returns position of given x coordinate
131 size_type x2pos(int pos) const;
132 /// returns position of given x coordinate fstarting from a certain pos
133 size_type x2pos(int targetx, int glue) const;
134 /// returns distance of this cell to the point given by x and y
135 // assumes valid position and size cache
136 int dist(BufferView & bv, int x, int y) const;
138 /// ascent of this cell above the baseline
139 int ascent() const { return dim_.asc; }
140 /// descent of this cell below the baseline
141 int descent() const { return dim_.des; }
142 /// height of the cell
143 int height() const { return dim_.asc + dim_.des; }
144 /// width of this cell
145 int width() const { return dim_.wid; }
146 /// dimensions of cell
147 Dimension const & dim() const { return dim_; }
148 /// dimensions of cell
149 void setDim(Dimension const & d) const { dim_ = d; }
152 /// is this an exact match at this position?
153 bool find1(MathArray const & ar, size_type pos) const;
155 /// cached dimensions of cell
156 mutable Dimension dim_;
160 std::ostream & operator<<(std::ostream & os, MathArray const & ar);
162 lyx::odocstream & operator<<(lyx::odocstream & os, MathArray const & ar);