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https://git.lyx.org/repos/lyx.git
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9921635d78
first shot at transformation 'sin^2 x' -> 'sin(x)^2' git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@2992 a592a061-630c-0410-9148-cb99ea01b6c8
142 lines
2.7 KiB
C
142 lines
2.7 KiB
C
#include <config.h>
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#ifdef __GNUG__
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#pragma implementation
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#endif
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#include "math_deliminset.h"
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#include "math_parser.h"
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#include "math_support.h"
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#include "math_mathmlstream.h"
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#include "math_extern.h"
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MathDelimInset::MathDelimInset(string const & l, string const & r)
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: MathNestInset(1), left_(l), right_(r)
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{}
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MathInset * MathDelimInset::clone() const
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{
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return new MathDelimInset(*this);
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}
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string MathDelimInset::latexName(string const & name)
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{
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if (name == "(")
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return name;
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if (name == "[")
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return name;
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if (name == ".")
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return name;
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if (name == ")")
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return name;
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if (name == "]")
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return name;
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if (name == "/")
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return name;
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if (name == "|")
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return name;
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return "\\" + name + " ";
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}
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void MathDelimInset::write(WriteStream & os) const
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{
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os << "\\left" << latexName(left_).c_str() << cell(0)
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<< "\\right" << latexName(right_).c_str();
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}
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void MathDelimInset::normalize(NormalStream & os) const
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{
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os << "[delim " << latexName(left_).c_str() << ' '
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<< latexName(right_).c_str() << ' ' << cell(0) << ']';
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}
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int MathDelimInset::dw() const
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{
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int w = height() / 5;
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if (w > 15)
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w = 15;
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if (w < 4)
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w = 4;
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return w;
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}
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void MathDelimInset::metrics(MathMetricsInfo const & mi) const
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{
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xcell(0).metrics(mi);
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int a, d, w;
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mathed_char_dim(LM_TC_VAR, mi, 'I', a, d, w);
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int h0 = (a + d) / 2;
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int a0 = std::max(xcell(0).ascent(), a) - h0;
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int d0 = std::max(xcell(0).descent(), d) + h0;
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ascent_ = std::max(a0, d0) + h0;
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descent_ = std::max(a0, d0) - h0;
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width_ = xcell(0).width() + 2 * dw() + 4;
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}
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void MathDelimInset::draw(Painter & pain, int x, int y) const
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{
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int const w = dw();
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int const b = y - ascent_;
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xcell(0).draw(pain, x + w + 2, y);
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mathed_draw_deco(pain, x + 1, b, w, height(), left_);
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mathed_draw_deco(pain, x + width() - w - 1, b, w, height(), right_);
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}
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bool MathDelimInset::isParanthesis() const
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{
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return left_ == "(" && right_ == ")";
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}
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bool MathDelimInset::isBrackets() const
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{
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return left_ == "[" && right_ == "]";
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}
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bool MathDelimInset::isAbs() const
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{
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return left_ == "|" && right_ == "|";
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}
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void MathDelimInset::maplize(MapleStream & os) const
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{
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if (isAbs()) {
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bool mat =
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cell(0).size() == 1 && cell(0).begin()->nucleus()
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&& cell(0).begin()->nucleus()->asMatrixInset();
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if (mat)
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os << "linalg[det](" << cell(0) << ")";
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else
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os << "abs(" << cell(0) << ")";
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}
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else
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os << left_.c_str() << cell(0) << right_.c_str();
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}
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void MathDelimInset::mathmlize(MathMLStream & os) const
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{
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os << "<fenced open=\"" << left_.c_str() << "\" close=\""
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<< right_.c_str() << "\">" << cell(0) << "</fenced>";
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}
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void MathDelimInset::octavize(OctaveStream & os) const
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{
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if (isAbs())
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os << "det(" << cell(0) << ")";
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else
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os << left_.c_str() << cell(0) << right_.c_str();
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}
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