3 * Purpose: Implementation of the root object
4 * Author: Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
5 * Created: January 1999
6 * Description: Root math object
8 * Copyright: 1999 Alejandro Aguilar Sierra
10 * You are free to use and modify this code under the terms of
11 * the GNU General Public Licence version 2 or later.
15 #include "math_rootinset.h"
16 #include "math_mathmlstream.h"
17 #include "frontends/Painter.h"
23 MathRootInset::MathRootInset()
28 MathInset * MathRootInset::clone() const
30 return new MathRootInset(*this);
34 void MathRootInset::metrics(MetricsInfo & mi) const
36 MathNestInset::metrics(mi);
37 dim_.asc = max(cell(0).ascent() + 5, cell(1).ascent()) + 2;
38 dim_.des = max(cell(1).descent() + 5, cell(0).descent()) + 2;
39 dim_.wid = cell(0).width() + cell(1).width() + 10;
44 void MathRootInset::draw(PainterInfo & pi, int x, int y) const
46 int const w = cell(0).width();
48 cell(0).draw(pi, x, y - 5 - cell(0).descent());
50 cell(1).draw(pi, x + w + 8, y);
51 int const a = ascent();
52 int const d = descent();
55 xp[0] = x + width(); yp[0] = y - a + 1;
56 xp[1] = x + w + 4; yp[1] = y - a + 1;
57 xp[2] = x + w; yp[2] = y + d;
58 xp[3] = x + w - 2; yp[3] = y + (d - a)/2 + 2;
59 //xp[4] = x; yp[4] = y + (d - a)/2 + 2;
60 xp[4] = x + w - 5; yp[4] = y + (d - a)/2 + 4;
61 pi.pain.lines(xp, yp, 5, LColor::math);
62 drawMarkers(pi, x, y);
66 void MathRootInset::write(WriteStream & os) const
68 os << "\\sqrt[" << cell(0) << "]{" << cell(1) << '}';
72 void MathRootInset::normalize(NormalStream & os) const
74 os << "[root " << cell(0) << ' ' << cell(1) << ']';
78 bool MathRootInset::idxUpDown(idx_type & idx, pos_type & pos, bool up, int) const
80 bool target = !up; // up ? 0 : 1;
84 pos = target ? 0 : cell(0).size();
89 void MathRootInset::maple(MapleStream & os) const
91 os << '(' << cell(1) << ")^(1/(" << cell(0) <<"))";
95 void MathRootInset::octave(OctaveStream & os) const
97 os << "root(" << cell(1) << ',' << cell(0) << ')';
101 void MathRootInset::mathmlize(MathMLStream & os) const
103 os << MTag("mroot") << cell(1) << cell(0) << ETag("mroot");