-#ifdef __GNUG__
-#pragma implementation
-#endif
+/**
+ * \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 "mathed/support.h"
-#include "Painter.h"
-#include "support/LOstream.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)
{}
-MathInset * MathFracInset::clone() const
-{
- return new MathFracInset(*this);
+auto_ptr<InsetBase> MathFracInset::doClone() const
+{
+ return auto_ptr<InsetBase>(new MathFracInset(*this));
+}
+
+
+MathFracInset * MathFracInset::asFracInset()
+{
+ return kind_ == ATOP ? 0 : this;
+}
+
+
+MathFracInset const * MathFracInset::asFracInset() const
+{
+ return kind_ == ATOP ? 0 : this;
}
-void MathFracInset::metrics(MathMetricsInfo const & mi) const
+void MathFracInset::metrics(MetricsInfo & mi, Dimension & dim) const
{
- MathMetricsInfo m = mi;
- smallerStyleFrac(m);
- xcell(0).metrics(m);
- xcell(1).metrics(m);
- width_ = std::max(xcell(0).width(), xcell(1).width()) + 4;
- ascent_ = xcell(0).height() + 4 + 5;
- descent_ = xcell(1).height() + 4 - 5;
+ FracChanger dummy(mi.base);
+ cell(0).metrics(mi);
+ cell(1).metrics(mi);
+ 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(Painter & pain, int x, int y) const
+void MathFracInset::draw(PainterInfo & pi, int x, int y) const
{
- int m = x + width() / 2;
- xcell(0).draw(pain, m - xcell(0).width() / 2, y - xcell(0).descent() - 3 - 5);
- xcell(1).draw(pain, m - xcell(1).width() / 2, y + xcell(1).ascent() + 3 - 5);
- if (!atop_)
- pain.line(x + 2, y - 5, x + width() - 4, y - 5, LColor::mathline);
+ setPosCache(pi, x, y);
+ int m = x + dim_.wid / 2;
+ FracChanger dummy(pi.base);
+ 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);
}
-void MathFracInset::write(MathWriteInfo & os) const
+void MathFracInset::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
{
- if (atop_)
+ cell(0).metricsT(mi, dim);
+ cell(1).metricsT(mi, dim);
+ dim.wid = max(cell(0).width(), cell(1).width());
+ dim.asc = cell(0).height() + 1;
+ dim.des = cell(1).height();
+ //dim = dim_;
+}
+
+
+void MathFracInset::drawT(TextPainter & pain, int x, int y) const
+{
+ 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());
+ // ASCII art: ignore niceties
+ if (kind_ == FRAC || kind_ == NICEFRAC)
+ pain.horizontalLine(x, y, dim_.width());
+}
+
+
+void MathFracInset::write(WriteStream & os) const
+{
+ if (kind_ == ATOP)
os << '{' << cell(0) << "\\atop " << cell(1) << '}';
- else
- os << "\\frac{" << cell(0) << "}{" << cell(1) << '}';
+ else // it's \\frac
+ MathNestInset::write(os);
}
-void MathFracInset::writeNormal(std::ostream & os) const
+string MathFracInset::name() const
{
- if (atop_)
- os << "[atop ";
- else
- os << "[frac ";
- cell(0).writeNormal(os);
- os << " ";
- cell(1).writeNormal(os);
- os << "] ";
+ switch (kind_) {
+ case FRAC:
+ return "frac";
+ case NICEFRAC:
+ return "nicefrac";
+ case ATOP:
+ return "atop";
+ default:
+ return string();
+ }
}
+
+
+bool MathFracInset::extraBraces() const
+{
+ return kind_ == ATOP;
+}
+
+
+void MathFracInset::maple(MapleStream & os) const
+{
+ os << '(' << cell(0) << ")/(" << cell(1) << ')';
+}
+
+
+void MathFracInset::mathematica(MathematicaStream & os) const
+{
+ os << '(' << cell(0) << ")/(" << cell(1) << ')';
+}
+
+
+void MathFracInset::octave(OctaveStream & os) const
+{
+ os << '(' << cell(0) << ")/(" << cell(1) << ')';
+}
+
+
+void MathFracInset::mathmlize(MathMLStream & os) const
+{
+ os << MTag("mfrac") << cell(0) << cell(1) << ETag("mfrac");
+}
+
+
+void MathFracInset::validate(LaTeXFeatures & features) const
+{
+ if (kind_ == NICEFRAC)
+ features.require("nicefrac");
+ MathNestInset::validate(features);
+}
+