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"
21 #include "frontends/Painter.h"
26 InsetMathTFrac::InsetMathTFrac()
31 Inset * InsetMathTFrac::clone() const
33 return new InsetMathTFrac(*this);
37 void InsetMathTFrac::metrics(MetricsInfo & mi, Dimension & dim) const
39 StyleChanger dummy(mi.base, LM_ST_SCRIPT);
41 cell(0).metrics(mi, dim0);
43 cell(1).metrics(mi, dim1);
44 dim.wid = std::max(dim0.width(), dim1.width()) + 2;
45 dim.asc = dim0.height() + 2 + 5;
46 dim.des = dim1.height() + 2 - 5;
47 // Cache the inset dimension.
52 void InsetMathTFrac::draw(PainterInfo & pi, int x, int y) const
54 StyleChanger dummy(pi.base, LM_ST_SCRIPT);
55 Dimension const dim = dimension(*pi.base.bv);
56 Dimension const & dim0 = cell(0).dimension(*pi.base.bv);
57 Dimension const & dim1 = cell(1).dimension(*pi.base.bv);
58 int m = x + dim.wid / 2;
59 cell(0).draw(pi, m - dim0.width() / 2, y - dim0.descent() - 2 - 5);
60 cell(1).draw(pi, m - dim1.width() / 2, y + dim1.ascent() + 2 - 5);
61 pi.pain.line(x + 1, y - 5, x + dim.wid - 2, y - 5, Color::math);
62 setPosCache(pi, x, y);
66 docstring InsetMathTFrac::name() const
68 return from_ascii("tfrac");
72 void InsetMathTFrac::mathmlize(MathStream & os) const
74 os << MTag("mtfrac") << cell(0) << cell(1) << ETag("mtfrac");
78 void InsetMathTFrac::validate(LaTeXFeatures & features) const
80 features.require("amsmath");
81 InsetMathNest::validate(features);