more IU

[lyx.git] / src / mathed / math_undersetinset.C

diff --git a/src/mathed/math_undersetinset.C b/src/mathed/math_undersetinset.C
index 07968726b51bf45687c69b1c845b7e0dfd111d29..8162266a1792bbace92936be30c37b67ef4dda1a 100644 (file)
--- a/src/mathed/math_undersetinset.C
+++ b/src/mathed/math_undersetinset.C
@@ -1,23 +1,31 @@
+/**
+ * \file math_undersetinset.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author André Pönitz
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
+#include <config.h>
 
 #include "math_undersetinset.h"
+#include "math_data.h"
 #include "math_mathmlstream.h"
-#include "math_support.h"
 
 
 using std::max;
+using std::auto_ptr;
 
 
-MathUndersetInset::MathUndersetInset()
-{}
-
-
-MathInset * MathUndersetInset::clone() const
+auto_ptr<InsetBase> MathUndersetInset::clone() const
 {
-       return new MathUndersetInset(*this);
+       return auto_ptr<InsetBase>(new MathUndersetInset(*this));
 }
 
 
-void MathUndersetInset::metrics(MetricsInfo & mi) const
+void MathUndersetInset::metrics(MetricsInfo & mi, Dimension & dim) const
 {
        cell(1).metrics(mi);
        FracChanger dummy(mi.base);
@@ -25,12 +33,13 @@ void MathUndersetInset::metrics(MetricsInfo & mi) const
        dim_.wid = max(cell(0).width(), cell(1).width()) + 4;
        dim_.asc = cell(1).ascent();
        dim_.des = cell(1).descent() + cell(0).height() + 4;
+       dim = dim_;
 }
 
 
 void MathUndersetInset::draw(PainterInfo & pi, int x, int y) const
 {
-       int m  = x + width() / 2;
+       int m  = x + pi.width / 2;
        int yo = y + cell(1).descent() + cell(0).ascent() + 1;
        cell(1).draw(pi, m - cell(1).width() / 2, y);
        FracChanger dummy(pi.base);
@@ -38,6 +47,34 @@ void MathUndersetInset::draw(PainterInfo & pi, int x, int y) const
 }
 
 
+bool MathUndersetInset::idxFirst(idx_type & i, pos_type & pos) const
+{
+       i = 1;
+       pos = 0;
+       return true;
+}
+
+
+bool MathUndersetInset::idxLast(idx_type & i, pos_type & pos) const
+{
+       i = 1;
+       pos = cell(i).size();
+       return true;
+}
+
+
+bool MathUndersetInset::idxUpDown(idx_type & idx, pos_type & pos, bool up,
+       int targetx) const
+{
+       idx_type target = up; // up ? 1 : 0, since upper cell has idx 1
+       if (idx == target)
+               return false;
+       idx = target;
+       pos = cell(idx).x2pos(targetx);
+       return true;
+}
+
+
 void MathUndersetInset::write(WriteStream & os) const
 {
        os << "\\underset{" << cell(0) << "}{" << cell(1) << '}';