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 "lyxfunc.h"
  23 #include "Lsstream.h"
  24
  25 static char h_align_str[80] = "c";
  26 static char v_align_c[] = "tcb";
  27
  28 extern "C" int C_FormMathsMatrixAlignFilter(FL_OBJECT * ob, char const *,
  29                                             char const * cur, int c)
  30 {
  31         Assert(ob);
  32         FormMathsMatrix * pre = static_cast<FormMathsMatrix *>(ob->u_vdata);
  33         Assert(pre);
  34         return pre->AlignFilter(cur, c);
  35 }
  36
  37
  38 FormMathsMatrix::FormMathsMatrix(LyXView * lv, Dialogs * d,
  39                                FormMathsPanel const & p)
  40         : FormMathsSub(lv, d, p, _("Maths Matrix"))
  41 {}
  42
  43
  44 FL_FORM * FormMathsMatrix::form() const
  45 {
  46         if (dialog_.get())
  47                 return dialog_->form;
  48         return 0;
  49 }
  50
  51
  52 void FormMathsMatrix::build()
  53 {
  54         dialog_.reset(build_maths_matrix());
  55
  56         fl_addto_choice(dialog_->choice_valign, _("Top | Center | Bottom"));
  57         fl_set_choice(dialog_->choice_valign, 2);
  58         fl_set_input(dialog_->input_halign, h_align_str);
  59         dialog_->input_halign->u_vdata = this;
  60         fl_set_input_filter(dialog_->input_halign,
  61                             C_FormMathsMatrixAlignFilter);
  62
  63         bc().setOK(dialog_->button_ok);
  64         bc().setApply(dialog_->button_apply);
  65         bc().setCancel(dialog_->button_cancel);
  66
  67         bc().addReadOnly(dialog_->slider_rows);
  68         bc().addReadOnly(dialog_->slider_columns);
  69         bc().addReadOnly(dialog_->choice_valign);
  70         bc().addReadOnly(dialog_->input_halign);
  71
  72         bc().refresh();
  73 }
  74
  75
  76 void FormMathsMatrix::apply()
  77 {
  78         char const c = v_align_c[fl_get_choice(dialog_->choice_valign) - 1];
  79         char const * sh = fl_get_input(dialog_->input_halign);
  80         int const nx = int(fl_get_slider_value(dialog_->slider_columns) + 0.5);
  81         int const ny = int(fl_get_slider_value(dialog_->slider_rows) + 0.5);
  82
  83         std::ostringstream ost;
  84         ost << nx << ' ' << ny << ' ' << c << sh;
  85
  86         lv_->getLyXFunc()->Dispatch(LFUN_INSERT_MATRIX, ost.str().c_str());
  87 }
  88
  89 bool FormMathsMatrix::input(FL_OBJECT * ob, long)
  90 {
  91         if (ob == dialog_->choice_valign ||
  92             ob == dialog_->slider_rows) return true;
  93
  94         int const nx = int(fl_get_slider_value(dialog_->slider_columns)+0.5);
  95         for (int i = 0; i < nx; ++i)
  96                 h_align_str[i] = 'c';
  97
  98         h_align_str[nx] = '\0';
  99
 100         fl_set_input(dialog_->input_halign, h_align_str);
 101         fl_redraw_object(dialog_->input_halign);
 102         return true;
 103 }
 104
 105
 106 int FormMathsMatrix::AlignFilter(char const * cur, int c)
 107 {
 108         int n = int(fl_get_slider_value(dialog_->slider_columns)+0.5) -
 109                 int(strlen(cur));
 110         if (n < 0)
 111                 return FL_INVALID;
 112
 113         if (c == 'c' || c == 'l' || c == 'r')
 114                 return FL_VALID;
 115
 116         return FL_INVALID;
 117 }