src/frontends/xforms/FormMathsMatrix.C

   1 /**
   2  * \file FormMathsMatrix.C
   3  * Copyright 2001 The LyX Team.
   4  * See the file COPYING.
   5  *
   6  * \author Alejandro Aguilar Sierra
   7  * \author Pablo De Napoli, pdenapo@dm.uba.ar
   8  * \author John Levon, moz@compsoc.man.ac.uk
   9  * \author Angus Leeming, a.leeming@ic.ac.uk
  10  */
  11
  12 #include <config.h>
  13
  14 #ifdef __GNUG_
  15 #pragma implementation
  16 #endif
  17
  18 #include "FormMathsMatrix.h"
  19 #include "form_maths_matrix.h"
  20 #include "Dialogs.h"
  21 #include "LyXView.h"
  22 #include "Lsstream.h"
  23 #include "lyxfunc.h"
  24 #include "support/LAssert.h"
  25
  26 #ifndef CXX_GLOBAL_CSTD
  27 using std::strlen;
  28 #endif
  29
  30
  31 static char h_align_str[80] = "c";
  32 static char v_align_c[] = "tcb";
  33
  34
  35 extern "C" {
  36
  37         static
  38         int C_FormMathsMatrixAlignFilter(FL_OBJECT * ob, char const *,
  39                                          char const * cur, int c)
  40         {
  41                 lyx::Assert(ob);
  42                 FormMathsMatrix * pre =
  43                         static_cast<FormMathsMatrix *>(ob->u_vdata);
  44                 lyx::Assert(pre);
  45                 return pre->AlignFilter(cur, c);
  46         }
  47
  48 }
  49
  50
  51 FormMathsMatrix::FormMathsMatrix(LyXView * lv, Dialogs * d,
  52                                FormMathsPanel const & p)
  53         : FormMathsSub(lv, d, p, _("Maths Matrix"), false)
  54 {}
  55
  56
  57 FL_FORM * FormMathsMatrix::form() const
  58 {
  59         if (dialog_.get())
  60                 return dialog_->form;
  61         return 0;
  62 }
  63
  64
  65 void FormMathsMatrix::build()
  66 {
  67         dialog_.reset(build_maths_matrix());
  68
  69         fl_addto_choice(dialog_->choice_valign, _("Top | Center | Bottom"));
  70         fl_set_choice(dialog_->choice_valign, 2);
  71         fl_set_input(dialog_->input_halign, h_align_str);
  72         dialog_->input_halign->u_vdata = this;
  73         fl_set_input_filter(dialog_->input_halign,
  74                             C_FormMathsMatrixAlignFilter);
  75
  76         bc().setOK(dialog_->button_ok);
  77         bc().setApply(dialog_->button_apply);
  78         bc().setCancel(dialog_->button_cancel);
  79
  80         bc().addReadOnly(dialog_->slider_rows);
  81         bc().addReadOnly(dialog_->slider_columns);
  82         bc().addReadOnly(dialog_->choice_valign);
  83         bc().addReadOnly(dialog_->input_halign);
  84 }
  85
  86
  87 void FormMathsMatrix::apply()
  88 {
  89         char const c = v_align_c[fl_get_choice(dialog_->choice_valign) - 1];
  90         char const * sh = fl_get_input(dialog_->input_halign);
  91         int const nx = int(fl_get_slider_value(dialog_->slider_columns) + 0.5);
  92         int const ny = int(fl_get_slider_value(dialog_->slider_rows) + 0.5);
  93
  94         ostringstream ost;
  95         ost << nx << ' ' << ny << ' ' << c << ' ' << sh;
  96
  97         lv_->getLyXFunc()->dispatch(LFUN_INSERT_MATRIX, ost.str().c_str());
  98 }
  99
 100 bool FormMathsMatrix::input(FL_OBJECT * ob, long)
 101 {
 102         if (ob == dialog_->choice_valign ||
 103             ob == dialog_->slider_rows) return true;
 104
 105         int const nx = int(fl_get_slider_value(dialog_->slider_columns)+0.5);
 106         for (int i = 0; i < nx; ++i)
 107                 h_align_str[i] = 'c';
 108
 109         h_align_str[nx] = '\0';
 110
 111         fl_set_input(dialog_->input_halign, h_align_str);
 112         fl_redraw_object(dialog_->input_halign);
 113         return true;
 114 }
 115
 116
 117 int FormMathsMatrix::AlignFilter(char const * cur, int c)
 118 {
 119         int const n = int(fl_get_slider_value(dialog_->slider_columns) + 0.5) -
 120                 int(strlen(cur));
 121         if (n < 0)
 122                 return FL_INVALID;
 123
 124         if (c == 'c' || c == 'l' || c == 'r')
 125                 return FL_VALID;
 126
 127         return FL_INVALID;
 128 }