src/mathed/InsetMathSplit.cpp

   1 /**
   2  * \file InsetMathSplit.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 "InsetMathSplit.h"
  14
  15 #include "MathData.h"
  16 #include "MathStream.h"
  17 #include "MathStream.h"
  18
  19 #include "FuncRequest.h"
  20 #include "FuncStatus.h"
  21 #include "support/gettext.h"
  22 #include "LaTeXFeatures.h"
  23
  24 #include "support/lstrings.h"
  25
  26 #include <ostream>
  27
  28 using namespace std;
  29
  30 namespace lyx {
  31
  32 using support::bformat;
  33
  34
  35 InsetMathSplit::InsetMathSplit(Buffer * buf, docstring const & name,
  36         char valign)
  37         : InsetMathGrid(buf, 1, 1, valign, docstring()), name_(name)
  38 {
  39 }
  40
  41
  42 Inset * InsetMathSplit::clone() const
  43 {
  44         return new InsetMathSplit(*this);
  45 }
  46
  47
  48 char InsetMathSplit::defaultColAlign(col_type col)
  49 {
  50         if (name_ == "split")
  51                 return 'l';
  52         if (name_ == "gathered")
  53                 return 'c';
  54         if (name_ == "aligned")
  55                 return (col & 1) ? 'l' : 'r';
  56         if (name_ == "alignedat")
  57                 return (col & 1) ? 'l' : 'r';
  58         return 'l';
  59 }
  60
  61
  62 void InsetMathSplit::draw(PainterInfo & pi, int x, int y) const
  63 {
  64         InsetMathGrid::draw(pi, x, y);
  65         setPosCache(pi, x, y);
  66 }
  67
  68
  69 bool InsetMathSplit::getStatus(Cursor & cur, FuncRequest const & cmd,
  70                 FuncStatus & flag) const
  71 {
  72         switch (cmd.action) {
  73         case LFUN_TABULAR_FEATURE: {
  74                 docstring const & s = cmd.argument();
  75                 if (s == "add-vline-left" || s == "add-vline-right") {
  76                         flag.message(bformat(
  77                                 from_utf8(N_("Can't add vertical grid lines in '%1$s'")),       name_));
  78                         flag.setEnabled(false);
  79                         return true;
  80                 }
  81                 return InsetMathGrid::getStatus(cur, cmd, flag);
  82         }
  83         default:
  84                 return InsetMathGrid::getStatus(cur, cmd, flag);
  85         }
  86 }
  87
  88
  89 void InsetMathSplit::write(WriteStream & ws) const
  90 {
  91         MathEnsurer ensurer(ws);
  92         if (ws.fragile())
  93                 ws << "\\protect";
  94         ws << "\\begin{" << name_ << '}';
  95         if (name_ != "split" && verticalAlignment() != 'c')
  96                 ws << '[' << verticalAlignment() << ']';
  97         if (name_ == "alignedat")
  98                 ws << '{' << static_cast<unsigned int>((ncols() + 1)/2) << '}';
  99         InsetMathGrid::write(ws);
 100         if (ws.fragile())
 101                 ws << "\\protect";
 102         ws << "\\end{" << name_ << "}\n";
 103 }
 104
 105
 106 void InsetMathSplit::infoize(odocstream & os) const
 107 {
 108         docstring name = name_;
 109         name[0] = support::uppercase(name[0]);
 110         os << name << ' ';
 111 }
 112
 113
 114 void InsetMathSplit::validate(LaTeXFeatures & features) const
 115 {
 116         if (name_ == "split" || name_ == "gathered" || name_ == "aligned" ||
 117             name_ == "alignedat")
 118                 features.require("amsmath");
 119         InsetMathGrid::validate(features);
 120 }
 121
 122
 123 } // namespace lyx