+2002-02-01 André Pönitz <poenitz@gmx.net>
+
+ * math_undersetinset.[Ch]: implement direct support for \underset
+
2002-01-28 Martin Vermeer <martin.vermeer@hut.fi>
* math_support.C: removed the arrays latex_mathstyle[] and
* math_sizeinset.[Ch]: support for \displaystyle etc
-
2001-12-18 Dekel Tsur <dekelts@tau.ac.il>
* math_macrotable.C (builtinMacros): Adjust kern values.
math_symbolinset.h \
math_unknowninset.C \
math_unknowninset.h \
+ math_undersetinset.C \
+ math_undersetinset.h \
math_xdata.C \
math_xdata.h
#include "math_sqrtinset.h"
#include "math_stackrelinset.h"
#include "math_symbolinset.h"
+#include "math_undersetinset.h"
#include "math_unknowninset.h"
return MathAtom(new MathSymbolInset(l));
case LM_TK_STACK:
return MathAtom(new MathStackrelInset);
+ case LM_TK_UNDERSET:
+ return MathAtom(new MathUndersetInset);
case LM_TK_KERN:
return MathAtom(new MathKernInset);
case LM_TK_BINOM:
{"underbar", LM_TK_DECORATION, 0},
{"underbrace", LM_TK_DECORATION, 0},
{"underline", LM_TK_DECORATION, 0},
+ {"underset", LM_TK_UNDERSET, 0},
{"vdots", LM_TK_DOTS, 0},
{"vec", LM_TK_DECORATION, 0},
{"widehat", LM_TK_DECORATION, 0},
///
LM_TK_KERN,
///
+ LM_TK_UNDERSET,
+ ///
LM_TK_STACK
};
--- /dev/null
+#ifdef __GNUG__
+#pragma implementation
+#endif
+
+#include "math_undersetinset.h"
+#include "math_mathmlstream.h"
+#include "math_support.h"
+
+
+MathUndersetInset::MathUndersetInset()
+{}
+
+
+MathInset * MathUndersetInset::clone() const
+{
+ return new MathUndersetInset(*this);
+}
+
+
+void MathUndersetInset::metrics(MathMetricsInfo const & mi) const
+{
+ MathMetricsInfo m = mi;
+ smallerStyleFrac(m);
+ xcell(0).metrics(m);
+ xcell(1).metrics(mi);
+ width_ = std::max(xcell(0).width(), xcell(1).width()) + 4;
+ ascent_ = xcell(1).ascent();
+ descent_ = xcell(1).descent() + xcell(0).height() + 4;
+}
+
+
+void MathUndersetInset::draw(Painter & pain, int x, int y) const
+{
+ int m = x + width() / 2;
+ int yo = y + xcell(1).descent() + xcell(0).ascent() + 1;
+ xcell(0).draw(pain, m - xcell(0).width() / 2, yo);
+ xcell(1).draw(pain, m - xcell(1).width() / 2, y);
+}
+
+
+void MathUndersetInset::write(WriteStream & os) const
+{
+ os << "\\underset{" << cell(0) << "}{" << cell(1) << '}';
+}
+
+
+void MathUndersetInset::normalize(NormalStream & os) const
+{
+ os << "[underset " << cell(0) << ' ' << cell(1) << ']';
+}
--- /dev/null
+// -*- C++ -*-
+#ifndef MATH_UNDERSETINSET_H
+#define MATH_UNDERSETINSET_H
+
+#include "math_fracbase.h"
+
+#ifdef __GNUG__
+#pragma interface
+#endif
+
+/** Underset objects
+ \author André Pönitz
+ */
+class MathUndersetInset : public MathFracbaseInset {
+public:
+ ///
+ MathUndersetInset();
+ ///
+ MathInset * clone() const;
+ ///
+ void metrics(MathMetricsInfo const & st) const;
+ ///
+ void draw(Painter &, int x, int y) const;
+
+ ///
+ void write(WriteStream & os) const;
+ ///
+ void normalize(NormalStream &) const;
+};
+
+#endif