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 extern "C"
  35 int C_FormMathsMatrixAlignFilter(FL_OBJECT * ob, char const *,
  36                                             char const * cur, int c)
  37 {
  38         lyx::Assert(ob);
  39         FormMathsMatrix * pre = static_cast<FormMathsMatrix *>(ob->u_vdata);
  40         lyx::Assert(pre);
  41         return pre->AlignFilter(cur, c);
  42 }
  43
  44
  45 FormMathsMatrix::FormMathsMatrix(LyXView * lv, Dialogs * d,
  46                                FormMathsPanel const & p)
  47         : FormMathsSub(lv, d, p, _("Maths Matrix"))
  48 {}
  49
  50
  51 FL_FORM * FormMathsMatrix::form() const
  52 {
  53         if (dialog_.get())
  54                 return dialog_->form;
  55         return 0;
  56 }
  57
  58
  59 void FormMathsMatrix::build()
  60 {
  61         dialog_.reset(build_maths_matrix());
  62
  63         fl_addto_choice(dialog_->choice_valign, _("Top | Center | Bottom"));
  64         fl_set_choice(dialog_->choice_valign, 2);
  65         fl_set_input(dialog_->input_halign, h_align_str);
  66         dialog_->input_halign->u_vdata = this;
  67         fl_set_input_filter(dialog_->input_halign,
  68                             C_FormMathsMatrixAlignFilter);
  69
  70         bc().setOK(dialog_->button_ok);
  71         bc().setApply(dialog_->button_apply);
  72         bc().setCancel(dialog_->button_cancel);
  73
  74         bc().addReadOnly(dialog_->slider_rows);
  75         bc().addReadOnly(dialog_->slider_columns);
  76         bc().addReadOnly(dialog_->choice_valign);
  77         bc().addReadOnly(dialog_->input_halign);
  78 }
  79
  80
  81 void FormMathsMatrix::apply()
  82 {
  83         char const c = v_align_c[fl_get_choice(dialog_->choice_valign) - 1];
  84         char const * sh = fl_get_input(dialog_->input_halign);
  85         int const nx = int(fl_get_slider_value(dialog_->slider_columns) + 0.5);
  86         int const ny = int(fl_get_slider_value(dialog_->slider_rows) + 0.5);
  87
  88         std::ostringstream ost;
  89         ost << nx << ' ' << ny << ' ' << c << sh;
  90
  91         lv_->getLyXFunc()->Dispatch(LFUN_INSERT_MATRIX, ost.str().c_str());
  92 }
  93
  94 bool FormMathsMatrix::input(FL_OBJECT * ob, long)
  95 {
  96         if (ob == dialog_->choice_valign ||
  97             ob == dialog_->slider_rows) return true;
  98
  99         int const nx = int(fl_get_slider_value(dialog_->slider_columns)+0.5);
 100         for (int i = 0; i < nx; ++i)
 101                 h_align_str[i] = 'c';
 102
 103         h_align_str[nx] = '\0';
 104
 105         fl_set_input(dialog_->input_halign, h_align_str);
 106         fl_redraw_object(dialog_->input_halign);
 107         return true;
 108 }
 109
 110
 111 int FormMathsMatrix::AlignFilter(char const * cur, int c)
 112 {
 113         int const n = int(fl_get_slider_value(dialog_->slider_columns) + 0.5) -
 114                 int(strlen(cur));
 115         if (n < 0)
 116                 return FL_INVALID;
 117
 118         if (c == 'c' || c == 'l' || c == 'r')
 119                 return FL_VALID;
 120
 121         return FL_INVALID;
 122 }