src/frontends/xforms/FormMathsMatrix.C

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