2 * \file InsetMathDFrac.cpp
3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
8 * Full author contact details are available in file CREDITS.
13 #include "InsetMathTFrac.h"
16 #include "MathStream.h"
18 #include "LaTeXFeatures.h"
20 #include "frontends/Painter.h"
25 InsetMathTFrac::InsetMathTFrac()
30 Inset * InsetMathTFrac::clone() const
32 return new InsetMathTFrac(*this);
36 void InsetMathTFrac::metrics(MetricsInfo & mi, Dimension & dim) const
38 StyleChanger dummy(mi.base, LM_ST_SCRIPT);
40 cell(0).metrics(mi, dim0);
42 cell(1).metrics(mi, dim1);
43 dim.wid = std::max(dim0.width(), dim1.width()) + 2;
44 dim.asc = dim0.height() + 2 + 5;
45 dim.des = dim1.height() + 2 - 5;
46 // Cache the inset dimension.
51 void InsetMathTFrac::draw(PainterInfo & pi, int x, int y) const
53 StyleChanger dummy(pi.base, LM_ST_SCRIPT);
54 Dimension const dim = dimension(*pi.base.bv);
55 Dimension const & dim0 = cell(0).dimension(*pi.base.bv);
56 Dimension const & dim1 = cell(1).dimension(*pi.base.bv);
57 int m = x + dim.wid / 2;
58 cell(0).draw(pi, m - dim0.width() / 2, y - dim0.descent() - 2 - 5);
59 cell(1).draw(pi, m - dim1.width() / 2, y + dim1.ascent() + 2 - 5);
60 pi.pain.line(x + 1, y - 5, x + dim.wid - 2, y - 5, Color_math);
61 setPosCache(pi, x, y);
65 docstring InsetMathTFrac::name() const
67 return from_ascii("tfrac");
71 void InsetMathTFrac::mathmlize(MathStream & os) const
73 os << MTag("mtfrac") << cell(0) << cell(1) << ETag("mtfrac");
77 void InsetMathTFrac::validate(LaTeXFeatures & features) const
79 features.require("amsmath");
80 InsetMathNest::validate(features);