src/mathed/InsetMathStackrel.cpp

   1 /**
   2  * \file InsetMathStackrel.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author André Pönitz
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "InsetMathStackrel.h"
  14 #include "MathData.h"
  15 #include "MathStream.h"
  16
  17 using namespace std;
  18
  19 namespace lyx {
  20
  21 InsetMathStackrel::InsetMathStackrel(Buffer * buf) : InsetMathFracBase(buf)
  22 {}
  23
  24
  25 Inset * InsetMathStackrel::clone() const
  26 {
  27         return new InsetMathStackrel(*this);
  28 }
  29
  30
  31 void InsetMathStackrel::metrics(MetricsInfo & mi, Dimension & dim) const
  32 {
  33         Dimension dim1;
  34         cell(1).metrics(mi, dim1);
  35         FracChanger dummy(mi.base);
  36         Dimension dim0;
  37         cell(0).metrics(mi, dim0);
  38         dim.wid = max(dim0.width(), dim1.width()) + 4;
  39         dim.asc = dim1.ascent() + dim0.height() + 4;
  40         dim.des = dim1.descent();
  41         metricsMarkers(dim);
  42 }
  43
  44
  45 void InsetMathStackrel::draw(PainterInfo & pi, int x, int y) const
  46 {
  47         Dimension const dim = dimension(*pi.base.bv);
  48         Dimension const & dim0 = cell(0).dimension(*pi.base.bv);
  49         Dimension const & dim1 = cell(1).dimension(*pi.base.bv);
  50         int m  = x + dim.width() / 2;
  51         int yo = y - dim1.ascent() - dim0.descent() - 1;
  52         cell(1).draw(pi, m - dim1.width() / 2, y);
  53         FracChanger dummy(pi.base);
  54         cell(0).draw(pi, m - dim0.width() / 2, yo);
  55         drawMarkers(pi, x, y);
  56 }
  57
  58
  59 void InsetMathStackrel::write(WriteStream & os) const
  60 {
  61         MathEnsurer ensurer(os);
  62         os << "\\stackrel{" << cell(0) << "}{" << cell(1) << '}';
  63 }
  64
  65
  66 void InsetMathStackrel::normalize(NormalStream & os) const
  67 {
  68         os << "[stackrel " << cell(0) << ' ' << cell(1) << ']';
  69 }
  70
  71
  72 } // namespace lyx