+/**
+ * \file math_fracinset.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author Alejandro Aguilar Sierra
+ * \author André Pönitz
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
+#include <config.h>
#include "math_fracinset.h"
-#include "math_support.h"
-#include "frontends/Painter.h"
+#include "math_data.h"
#include "math_mathmlstream.h"
#include "textpainter.h"
+#include "LaTeXFeatures.h"
+#include "LColor.h"
+#include "frontends/Painter.h"
+using std::string;
using std::max;
+using std::auto_ptr;
-MathFracInset::MathFracInset(bool atop)
- : atop_(atop)
+MathFracInset::MathFracInset(Kind kind)
+ : kind_(kind)
{}
-InsetBase * MathFracInset::clone() const
+auto_ptr<InsetBase> MathFracInset::doClone() const
{
- return new MathFracInset(*this);
+ return auto_ptr<InsetBase>(new MathFracInset(*this));
}
MathFracInset * MathFracInset::asFracInset()
{
- return atop_ ? 0 : this;
+ return kind_ == ATOP ? 0 : this;
}
MathFracInset const * MathFracInset::asFracInset() const
{
- return atop_ ? 0 : this;
+ return kind_ == ATOP ? 0 : this;
}
FracChanger dummy(mi.base);
cell(0).metrics(mi);
cell(1).metrics(mi);
- dim_.wid = max(cell(0).width(), cell(1).width()) + 2;
- dim_.asc = cell(0).height() + 2 + 5;
- dim_.des = cell(1).height() + 2 - 5;
- dim = dim_;
+ if (kind_ == NICEFRAC) {
+ dim.wid = cell(0).width() + cell(1).width() + 5;
+ dim.asc = cell(0).height() + 5;
+ dim.des = cell(1).height() - 5;
+ } else {
+ dim.wid = max(cell(0).width(), cell(1).width()) + 2;
+ dim.asc = cell(0).height() + 2 + 5;
+ dim.des = cell(1).height() + 2 - 5;
+ }
+ metricsMarkers(dim);
+ dim_ = dim;
}
void MathFracInset::draw(PainterInfo & pi, int x, int y) const
{
+ setPosCache(pi, x, y);
int m = x + dim_.wid / 2;
FracChanger dummy(pi.base);
- cell(0).draw(pi, m - cell(0).width() / 2, y - cell(0).descent() - 2 - 5);
- cell(1).draw(pi, m - cell(1).width() / 2, y + cell(1).ascent() + 2 - 5);
- if (!atop_)
- pi.pain.line(x + 1, y - 5, x + dim_.wid - 2, y - 5, LColor::math);
+ if (kind_ == NICEFRAC) {
+ cell(0).draw(pi, x + 2,
+ y - cell(0).descent() - 5);
+ cell(1).draw(pi, x + cell(0).width() + 5,
+ y + cell(1).ascent() / 2);
+ } else {
+ cell(0).draw(pi, m - cell(0).width() / 2,
+ y - cell(0).descent() - 2 - 5);
+ cell(1).draw(pi, m - cell(1).width() / 2,
+ y + cell(1).ascent() + 2 - 5);
+ }
+ if (kind_ == NICEFRAC)
+ pi.pain.line(x + cell(0).width(),
+ y + dim_.des - 2,
+ x + cell(0).width() + 5,
+ y - dim_.asc + 2, LColor::math);
+ if (kind_ == FRAC)
+ pi.pain.line(x + 1, y - 5,
+ x + dim_.wid - 2, y - 5, LColor::math);
+ drawMarkers(pi, x, y);
}
int m = x + dim_.width() / 2;
cell(0).drawT(pain, m - cell(0).width() / 2, y - cell(0).descent() - 1);
cell(1).drawT(pain, m - cell(1).width() / 2, y + cell(1).ascent());
- if (!atop_)
+ // ASCII art: ignore niceties
+ if (kind_ == FRAC || kind_ == NICEFRAC)
pain.horizontalLine(x, y, dim_.width());
}
void MathFracInset::write(WriteStream & os) const
{
- if (atop_)
+ if (kind_ == ATOP)
os << '{' << cell(0) << "\\atop " << cell(1) << '}';
else // it's \\frac
MathNestInset::write(os);
string MathFracInset::name() const
{
- return atop_ ? "atop" : "frac";
+ switch (kind_) {
+ case FRAC:
+ return "frac";
+ case NICEFRAC:
+ return "nicefrac";
+ case ATOP:
+ return "atop";
+ default:
+ return string();
+ }
+}
+
+
+bool MathFracInset::extraBraces() const
+{
+ return kind_ == ATOP;
}
{
os << MTag("mfrac") << cell(0) << cell(1) << ETag("mfrac");
}
+
+
+void MathFracInset::validate(LaTeXFeatures & features) const
+{
+ if (kind_ == NICEFRAC)
+ features.require("nicefrac");
+ MathNestInset::validate(features);
+}
+