#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()
-{}
-
-
auto_ptr<InsetBase> MathUndersetInset::clone() const
{
return auto_ptr<InsetBase>(new MathUndersetInset(*this));
}
+bool MathUndersetInset::idxFirst(BufferView & bv) const
+{
+ CursorSlice & cur = cursorTip(bv);
+ cur.idx() = 1;
+ cur.pos() = 0;
+ return true;
+}
+
+
+bool MathUndersetInset::idxLast(BufferView & bv) const
+{
+ CursorSlice & cur = cursorTip(bv);
+ cur.idx() = 1;
+ cur.pos() = cur.lastpos();
+ return true;
+}
+
+
+bool MathUndersetInset::idxUpDown(BufferView & bv, bool up, int targetx) const
+{
+ CursorSlice & cur = cursorTip(bv);
+ idx_type target = up; // up ? 1 : 0, since upper cell has idx 1
+ if (cur.idx() == target)
+ return false;
+ cur.idx() = target;
+ cur.pos() = cur.cell().x2pos(targetx);
+ return true;
+}
+
+
void MathUndersetInset::write(WriteStream & os) const
{
os << "\\underset{" << cell(0) << "}{" << cell(1) << '}';