src/mathed/InsetMathXArrow.cpp

   1 /**
   2  * \file InsetMathXArrow.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 "InsetMathXArrow.h"
  14 #include "MathData.h"
  15 #include "MathStream.h"
  16 #include "MathStream.h"
  17 #include "MathSupport.h"
  18
  19 #include "LaTeXFeatures.h"
  20
  21 using namespace std;
  22
  23 namespace lyx {
  24
  25
  26 InsetMathXArrow::InsetMathXArrow(Buffer * buf, docstring const & name)
  27         : InsetMathFracBase(buf), name_(name)
  28 {}
  29
  30
  31 Inset * InsetMathXArrow::clone() const
  32 {
  33         return new InsetMathXArrow(*this);
  34 }
  35
  36
  37 void InsetMathXArrow::metrics(MetricsInfo & mi, Dimension & dim) const
  38 {
  39         ScriptChanger dummy(mi.base);
  40         Dimension dim0;
  41         cell(0).metrics(mi, dim0);
  42         Dimension dim1;
  43         cell(1).metrics(mi, dim1);
  44         dim.wid = max(dim0.width(), dim1.width()) + 10;
  45         dim.asc = dim0.height() + 10;
  46         dim.des = dim1.height();
  47         metricsMarkers(dim);
  48 }
  49
  50
  51 void InsetMathXArrow::draw(PainterInfo & pi, int x, int y) const
  52 {
  53         ScriptChanger dummy(pi.base);
  54         cell(0).draw(pi, x + 5, y - 10);
  55         Dimension const & dim1 = cell(1).dimension(*pi.base.bv);
  56         cell(1).draw(pi, x + 5, y + dim1.height());
  57         Dimension const dim = dimension(*pi.base.bv);
  58         mathed_draw_deco(pi, x + 1, y - 7, dim.wid - 2, 5, name_);
  59         drawMarkers(pi, x, y);
  60 }
  61
  62
  63 void InsetMathXArrow::write(WriteStream & os) const
  64 {
  65         MathEnsurer ensurer(os);
  66         os << '\\' << name_;
  67         if (cell(1).size())
  68                 os << '[' << cell(1) << ']';
  69         os << '{' << cell(0) << '}';
  70 }
  71
  72
  73 void InsetMathXArrow::normalize(NormalStream & os) const
  74 {
  75         os << "[xarrow " << name_ << ' ' <<  cell(0) << ' ' << cell(1) << ']';
  76 }
  77
  78
  79 void InsetMathXArrow::validate(LaTeXFeatures & features) const
  80 {
  81         features.require("amsmath");
  82         InsetMathNest::validate(features);
  83 }
  84
  85
  86 } // namespace lyx