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 <leeming@lyx.org>
  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
  21 #include "bmtable.h"
  22
  23 #include "debug.h"
  24 #include "funcrequest.h"
  25 #include "lyxfunc.h"
  26
  27 #include "frontends/LyXView.h"
  28
  29 #include "support/lstrings.h"
  30
  31 #include "Lsstream.h"
  32
  33 #include FORMS_H_LOCATION
  34
  35 #include "delim.xbm"
  36 #include "delim0.xpm"
  37 #include "delim1.xpm"
  38
  39
  40 static int const delim_rversion[] = {
  41         1,1,3,3,4,5,7,7,9,9,10,11,
  42         13,13,14,15,16,17,19,19,20,21,22,23
  43 };
  44
  45
  46 static char const * delim_values[] = {
  47         "(", ")", "lceil",  "rceil",  "uparrow",  "Uparrow",
  48         "[", "]", "lfloor", "rfloor", "updownarrow", "Updownarrow",
  49         "{", "}",  "/", "\\",  "downarrow",  "Downarrow",
  50         "langle",  "rangle", "|", "Vert", ".", 0
  51 };
  52
  53 using std::endl;
  54
  55 FormMathsDelim::FormMathsDelim(LyXView & lv, Dialogs & d,
  56                                FormMathsPanel const & p)
  57         : FormMathsSub(lv, d, p, _("Maths Delimiters"), false)
  58 {}
  59
  60
  61 FL_FORM * FormMathsDelim::form() const
  62 {
  63         if (dialog_.get())
  64                 return dialog_->form;
  65         return 0;
  66 }
  67
  68
  69 void FormMathsDelim::build()
  70 {
  71         dialog_.reset(build_maths_delim(this));
  72
  73         fl_set_button(dialog_->radio_left, 1);
  74         // Initialize button_pix to "()" as found in images/delim0.xpm:
  75         fl_set_pixmap_data(dialog_->button_pix, const_cast<char**>(delim0));
  76         dialog_->radio_left->u_ldata = 0;
  77         dialog_->radio_right->u_ldata = 1;
  78         //dialog_->radio_both->u_ldata = 2;
  79
  80         fl_set_bmtable_data(dialog_->bmtable, 12, 2,
  81                             delim_width, delim_height, delim_bits);
  82         fl_set_bmtable_maxitems(dialog_->bmtable, 23);
  83
  84         bc().setOK(dialog_->button_ok);
  85         bc().setApply(dialog_->button_apply);
  86         bc().setCancel(dialog_->button_close);
  87
  88         bc().addReadOnly(dialog_->bmtable);
  89         bc().addReadOnly(dialog_->radio_right);
  90         bc().addReadOnly(dialog_->radio_left);
  91         bc().addReadOnly(dialog_->radio_both);
  92         bc().addReadOnly(dialog_->button_pix);
  93 }
  94
  95
  96 void FormMathsDelim::apply()
  97 {
  98         int const left  = int(dialog_->radio_left->u_ldata);
  99         int const right = int(dialog_->radio_right->u_ldata);
 100
 101         ostringstream os;
 102         os << delim_values[left] << ' ' << delim_values[right];
 103
 104         lv_.dispatch(FuncRequest(LFUN_MATH_DELIM, os.str().c_str()));
 105 }
 106
 107
 108 bool FormMathsDelim::input(FL_OBJECT *, long)
 109 {
 110         int left = int(dialog_->radio_left->u_ldata);
 111         int right= int(dialog_->radio_right->u_ldata);
 112         int const side = (fl_get_button(dialog_->radio_right) != 0);
 113
 114         int const i = fl_get_bmtable(dialog_->bmtable);
 115         int const button = fl_get_bmtable_numb(dialog_->bmtable);
 116         bool const both = (button == FL_MIDDLE_MOUSE ||
 117                            fl_get_button(dialog_->radio_both) != 0);
 118
 119         if (i >= 0) {
 120                 if (side || (button == FL_RIGHT_MOUSE))
 121                         right = i;
 122                 else {
 123                         left = i;
 124                         if (both) {
 125                                 right = delim_rversion[i];
 126                                 // Add left delimiter in "both" case if right one was pressed:
 127                                 for (int j = 0; j <= 23; ++j) {
 128                                         if (delim_rversion[j] == left) {
 129                                                 right = left;
 130                                                 left = j;
 131                                         }
 132                                 }
 133                         }
 134                 }
 135         }
 136
 137         // Re-initialize button_pix to solid blue
 138         // (not elegant but works, MV 24.5.2002)
 139         fl_free_pixmap_pixmap(dialog_->button_pix);
 140         fl_set_pixmap_data(dialog_->button_pix, const_cast<char**>(delim1));
 141         Pixmap p1;
 142         fl_get_pixmap_pixmap(dialog_->button_pix, &p1, 0);
 143
 144         fl_draw_bmtable_item(dialog_->bmtable, left, p1, 0, 0);
 145         fl_draw_bmtable_item(dialog_->bmtable, right, p1, 16, 0);
 146         fl_redraw_object(dialog_->button_pix);
 147
 148         dialog_->radio_left->u_ldata  = left;
 149         dialog_->radio_right->u_ldata = right;
 150
 151         return true;
 152 }