-#ifdef __GNUG__
-#pragma implementation
-#endif
+/**
+ * \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"
-MathUndersetInset::MathUndersetInset()
-{}
+using std::max;
+using std::auto_ptr;
+
+
+auto_ptr<InsetBase> MathUndersetInset::clone() const
+{
+ return auto_ptr<InsetBase>(new MathUndersetInset(*this));
+}
+
+
+void MathUndersetInset::metrics(MetricsInfo & mi, Dimension & dim) const
+{
+ cell(1).metrics(mi);
+ FracChanger dummy(mi.base);
+ cell(0).metrics(mi);
+ 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_;
+}
-MathInset * MathUndersetInset::clone() const
-{
- return new MathUndersetInset(*this);
+void MathUndersetInset::draw(PainterInfo & pi, int x, int y) const
+{
+ 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);
+ cell(0).draw(pi, m - cell(0).width() / 2, yo);
+}
+
+
+bool MathUndersetInset::idxFirst(idx_type & i, pos_type & pos) const
+{
+ i = 1;
+ pos = 0;
+ return true;
}
-void MathUndersetInset::metrics(MathMetricsInfo const & mi) const
+bool MathUndersetInset::idxLast(idx_type & i, pos_type & pos) 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;
+ i = 1;
+ pos = cell(i).size();
+ return true;
}
-void MathUndersetInset::draw(Painter & pain, int x, int y) const
+bool MathUndersetInset::idxUpDown(idx_type & idx, pos_type & pos, bool up,
+ int targetx) 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);
+ 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;
}