src/frontends/xforms/FormMathsDelim.C

   1 /**
   2  * \file FormMathsDelim.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 "FormMathsDelim.h"
  19 #include "form_maths_delim.h"
  20 #include "Dialogs.h"
  21 #include "frontends/LyXView.h"
  22 #include "bmtable.h"
  23 #include "debug.h"
  24 #include "support/lstrings.h"
  25 #include "lyxfunc.h"
  26
  27 #include "delim.xbm"
  28 #include "delim0.xpm"
  29 #include "delim1.xpm"
  30
  31 static int const delim_rversion[] = {
  32         1,1,3,3,4,5,7,7,9,9,10,11,
  33         13,13,14,15,16,17,19,19,20,21,22,23 };
  34
  35 static char const * delim_values[] = {
  36         "(", ")", "lceil",  "rceil",  "uparrow",  "Uparrow",
  37         "[", "]", "lfloor", "rfloor", "updownarrow", "Updownarrow",
  38         "{", "}",  "/", "\\",  "downarrow",  "Downarrow",
  39         "langle",  "rangle", "|", "Vert", ".", 0
  40 };
  41
  42 using std::endl;
  43
  44 FormMathsDelim::FormMathsDelim(LyXView * lv, Dialogs * d,
  45                                FormMathsPanel const & p)
  46         : FormMathsSub(lv, d, p, _("Maths Delimiters"), false)
  47 {}
  48
  49
  50 FL_FORM * FormMathsDelim::form() const
  51 {
  52         if (dialog_.get())
  53                 return dialog_->form;
  54         return 0;
  55 }
  56
  57
  58 void FormMathsDelim::build()
  59 {
  60         dialog_.reset(build_maths_delim());
  61
  62         fl_set_button(dialog_->radio_left, 1);
  63         // Initialize button_pix to "()" as found in images/delim0.xpm:
  64         fl_set_pixmap_data(dialog_->button_pix, const_cast<char**>(delim0));
  65         dialog_->radio_left->u_ldata = 0;
  66         dialog_->radio_right->u_ldata = 1;
  67         //dialog_->radio_both->u_ldata = 2;
  68
  69         fl_set_bmtable_data(dialog_->bmtable, 6, 4,
  70                             delim_width, delim_height, delim_bits);
  71         fl_set_bmtable_maxitems(dialog_->bmtable, 23);
  72
  73         bc().setOK(dialog_->button_ok);
  74         bc().setApply(dialog_->button_apply);
  75         bc().setCancel(dialog_->button_close);
  76
  77         bc().addReadOnly(dialog_->bmtable);
  78         bc().addReadOnly(dialog_->radio_right);
  79         bc().addReadOnly(dialog_->radio_left);
  80         bc().addReadOnly(dialog_->radio_both);
  81         bc().addReadOnly(dialog_->button_pix);
  82 }
  83
  84
  85 void FormMathsDelim::apply()
  86 {
  87         int const left = int(dialog_->radio_left->u_ldata);
  88         int const right= int(dialog_->radio_right->u_ldata);
  89
  90         ostringstream ost;
  91         ost << delim_values[left] << ' ' << delim_values[right];
  92
  93         lv_->getLyXFunc()->dispatch(LFUN_MATH_DELIM, ost.str().c_str());
  94 }
  95
  96 bool FormMathsDelim::input(FL_OBJECT *, long)
  97 {
  98         int left = int(dialog_->radio_left->u_ldata);
  99         int right= int(dialog_->radio_right->u_ldata);
 100         int const side = (fl_get_button(dialog_->radio_right) != 0);
 101
 102         int const i = fl_get_bmtable(dialog_->bmtable);
 103         int const button = fl_get_bmtable_numb(dialog_->bmtable);
 104         bool const both = (button == FL_MIDDLE_MOUSE ||
 105                            fl_get_button(dialog_->radio_both) != 0);
 106
 107         if (i >= 0) {
 108                 if (side || (button == FL_RIGHT_MOUSE))
 109                         right = i;
 110                 else {
 111                         left = i;
 112                         if (both) {
 113                                 right = delim_rversion[i];
 114                                 // Add left delimiter in "both" case if right one was pressed:
 115                                 for (int j = 0; j <= 23; ++j) {
 116                                         if (delim_rversion[j] == left) {
 117                                                 right = left;
 118                                                 left = j;
 119                                         }
 120                                 }
 121                         }
 122                 }
 123         }
 124
 125         // Re-initialize button_pix to solid blue
 126         // (not elegant but works, MV 24.5.2002)
 127         fl_free_pixmap_pixmap(dialog_->button_pix);
 128         fl_set_pixmap_data(dialog_->button_pix, const_cast<char**>(delim1));
 129         Pixmap p1;
 130         fl_get_pixmap_pixmap(dialog_->button_pix, &p1, 0);
 131
 132         fl_draw_bmtable_item(dialog_->bmtable, left, p1, -2, 0);
 133         fl_draw_bmtable_item(dialog_->bmtable, right, p1, 14, 0);
 134         fl_redraw_object(dialog_->button_pix);
 135
 136         dialog_->radio_left->u_ldata  = left;
 137         dialog_->radio_right->u_ldata = right;
 138
 139         return true;
 140 }