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 "forms/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 #include FORMS_H_LOCATION
  27
  28 #include "delim.xbm"
  29 #include "delim0.xpm"
  30 #include "delim1.xpm"
  31
  32 static int const delim_rversion[] = {
  33         1,1,3,3,4,5,7,7,9,9,10,11,
  34         13,13,14,15,16,17,19,19,20,21,22,23 };
  35
  36 static char const * delim_values[] = {
  37         "(", ")", "lceil",  "rceil",  "uparrow",  "Uparrow",
  38         "[", "]", "lfloor", "rfloor", "updownarrow", "Updownarrow",
  39         "{", "}",  "/", "\\",  "downarrow",  "Downarrow",
  40         "langle",  "rangle", "|", "Vert", ".", 0
  41 };
  42
  43 using std::endl;
  44
  45 FormMathsDelim::FormMathsDelim(LyXView * lv, Dialogs * d,
  46                                FormMathsPanel const & p)
  47         : FormMathsSub(lv, d, p, _("Maths Delimiters"), false)
  48 {}
  49
  50
  51 FL_FORM * FormMathsDelim::form() const
  52 {
  53         if (dialog_.get())
  54                 return dialog_->form;
  55         return 0;
  56 }
  57
  58
  59 void FormMathsDelim::build()
  60 {
  61         dialog_.reset(build_maths_delim(this));
  62
  63         fl_set_button(dialog_->radio_left, 1);
  64         // Initialize button_pix to "()" as found in images/delim0.xpm:
  65         fl_set_pixmap_data(dialog_->button_pix, const_cast<char**>(delim0));
  66         dialog_->radio_left->u_ldata = 0;
  67         dialog_->radio_right->u_ldata = 1;
  68         //dialog_->radio_both->u_ldata = 2;
  69
  70         fl_set_bmtable_data(dialog_->bmtable, 12, 2,
  71                             delim_width, delim_height, delim_bits);
  72         fl_set_bmtable_maxitems(dialog_->bmtable, 23);
  73
  74         bc().setOK(dialog_->button_ok);
  75         bc().setApply(dialog_->button_apply);
  76         bc().setCancel(dialog_->button_close);
  77
  78         bc().addReadOnly(dialog_->bmtable);
  79         bc().addReadOnly(dialog_->radio_right);
  80         bc().addReadOnly(dialog_->radio_left);
  81         bc().addReadOnly(dialog_->radio_both);
  82         bc().addReadOnly(dialog_->button_pix);
  83 }
  84
  85
  86 void FormMathsDelim::apply()
  87 {
  88         int const left = int(dialog_->radio_left->u_ldata);
  89         int const right= int(dialog_->radio_right->u_ldata);
  90
  91         ostringstream ost;
  92         ost << delim_values[left] << ' ' << delim_values[right];
  93
  94         lv_->getLyXFunc()->dispatch(LFUN_MATH_DELIM, ost.str().c_str(), false);
  95 }
  96
  97 bool FormMathsDelim::input(FL_OBJECT *, long)
  98 {
  99         int left = int(dialog_->radio_left->u_ldata);
 100         int right= int(dialog_->radio_right->u_ldata);
 101         int const side = (fl_get_button(dialog_->radio_right) != 0);
 102
 103         int const i = fl_get_bmtable(dialog_->bmtable);
 104         int const button = fl_get_bmtable_numb(dialog_->bmtable);
 105         bool const both = (button == FL_MIDDLE_MOUSE ||
 106                            fl_get_button(dialog_->radio_both) != 0);
 107
 108         if (i >= 0) {
 109                 if (side || (button == FL_RIGHT_MOUSE))
 110                         right = i;
 111                 else {
 112                         left = i;
 113                         if (both) {
 114                                 right = delim_rversion[i];
 115                                 // Add left delimiter in "both" case if right one was pressed:
 116                                 for (int j = 0; j <= 23; ++j) {
 117                                         if (delim_rversion[j] == left) {
 118                                                 right = left;
 119                                                 left = j;
 120                                         }
 121                                 }
 122                         }
 123                 }
 124         }
 125
 126         // Re-initialize button_pix to solid blue
 127         // (not elegant but works, MV 24.5.2002)
 128         fl_free_pixmap_pixmap(dialog_->button_pix);
 129         fl_set_pixmap_data(dialog_->button_pix, const_cast<char**>(delim1));
 130         Pixmap p1;
 131         fl_get_pixmap_pixmap(dialog_->button_pix, &p1, 0);
 132
 133         fl_draw_bmtable_item(dialog_->bmtable, left, p1, 0, 0);
 134         fl_draw_bmtable_item(dialog_->bmtable, right, p1, 16, 0);
 135         fl_redraw_object(dialog_->button_pix);
 136
 137         dialog_->radio_left->u_ldata  = left;
 138         dialog_->radio_right->u_ldata = right;
 139
 140         return true;
 141 }