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https://git.lyx.org/repos/lyx.git
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ff13a3e736
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@2666 a592a061-630c-0410-9148-cb99ea01b6c8
92 lines
1.7 KiB
C
92 lines
1.7 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 "mathed/support.h"
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#include "support/LOstream.h"
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using std::max;
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MathDelimInset::MathDelimInset(latexkeys const * l, latexkeys 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(latexkeys const * l)
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{
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//static const string vdelim("(){}[]./|");
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string name = l->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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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(std::ostream & os, bool fragile) const
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{
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os << "\\left" << latexName(left_);
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cell(0).write(os, fragile);
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os << "\\right" << latexName(right_);
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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(MathStyles st) const
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{
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xcell(0).metrics(st);
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size_ = st;
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int a, d, w;
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mathed_char_dim(LM_TC_VAR, st,'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_ = max(a0, d0) + h0;
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descent_ = 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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xo(x);
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yo(y);
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int const w = dw();
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int const b = y - ascent_ - 2;
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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() + 4, left_->name);
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mathed_draw_deco(pain, x + width() - w - 1, b, w, height() + 4, right_->name);
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}
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