src/frontends/xforms/FormMathsDelim.C

   1 /**
   2  * \file FormMathsDelim.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alejandro Aguilar Sierra
   7  * \author Pablo De Napoli
   8  * \author John Levon
   9  * \author Angus Leeming
  10  *
  11  * Full author contact details are available in file CREDITS
  12  */
  13
  14 #include <config.h>
  15
  16 #ifdef __GNUG__
  17 #pragma implementation
  18 #endif
  19
  20 #include "FormMathsDelim.h"
  21 #include "forms/form_maths_delim.h"
  22
  23 #include "bmtable.h"
  24
  25 #include "debug.h"
  26 #include "funcrequest.h"
  27 #include "lyxfunc.h"
  28
  29 #include "frontends/LyXView.h"
  30
  31 #include "support/lstrings.h"
  32
  33 #include "Lsstream.h"
  34
  35 #include FORMS_H_LOCATION
  36
  37 #include "delim.xbm"
  38 #include "delim0.xpm"
  39 #include "delim1.xpm"
  40
  41
  42 static int const delim_rversion[] = {
  43         1,1,3,3,4,5,7,7,9,9,10,11,
  44         13,13,14,15,16,17,19,19,20,21,22,23
  45 };
  46
  47
  48 static char const * delim_values[] = {
  49         "(", ")", "lceil",  "rceil",  "uparrow",  "Uparrow",
  50         "[", "]", "lfloor", "rfloor", "updownarrow", "Updownarrow",
  51         "{", "}",  "/", "\\",  "downarrow",  "Downarrow",
  52         "langle",  "rangle", "|", "Vert", ".", 0
  53 };
  54
  55 using std::endl;
  56
  57 FormMathsDelim::FormMathsDelim(LyXView & lv, Dialogs & d,
  58                                FormMathsPanel const & p)
  59         : FormMathsSub(lv, d, p, _("Maths Delimiters"), false)
  60 {}
  61
  62
  63 FL_FORM * FormMathsDelim::form() const
  64 {
  65         if (dialog_.get())
  66                 return dialog_->form;
  67         return 0;
  68 }
  69
  70
  71 void FormMathsDelim::build()
  72 {
  73         dialog_.reset(build_maths_delim(this));
  74
  75         fl_set_button(dialog_->radio_left, 1);
  76         // Initialize button_pix to "()" as found in images/delim0.xpm:
  77         fl_set_pixmap_data(dialog_->button_pix, const_cast<char**>(delim0));
  78         dialog_->radio_left->u_ldata = 0;
  79         dialog_->radio_right->u_ldata = 1;
  80         //dialog_->radio_both->u_ldata = 2;
  81
  82         fl_set_bmtable_data(dialog_->bmtable, 12, 2,
  83                             delim_width, delim_height, delim_bits);
  84         fl_set_bmtable_maxitems(dialog_->bmtable, 23);
  85
  86         bc().setOK(dialog_->button_ok);
  87         bc().setApply(dialog_->button_apply);
  88         bc().setCancel(dialog_->button_close);
  89
  90         bc().addReadOnly(dialog_->bmtable);
  91         bc().addReadOnly(dialog_->radio_right);
  92         bc().addReadOnly(dialog_->radio_left);
  93         bc().addReadOnly(dialog_->radio_both);
  94         bc().addReadOnly(dialog_->button_pix);
  95 }
  96
  97
  98 void FormMathsDelim::apply()
  99 {
 100         int const left  = int(dialog_->radio_left->u_ldata);
 101         int const right = int(dialog_->radio_right->u_ldata);
 102
 103         ostringstream os;
 104         os << delim_values[left] << ' ' << delim_values[right];
 105
 106         lv_.dispatch(FuncRequest(LFUN_MATH_DELIM, os.str().c_str()));
 107 }
 108
 109
 110 bool FormMathsDelim::input(FL_OBJECT *, long)
 111 {
 112         int left = int(dialog_->radio_left->u_ldata);
 113         int right= int(dialog_->radio_right->u_ldata);
 114         int const side = (fl_get_button(dialog_->radio_right) != 0);
 115
 116         int const i = fl_get_bmtable(dialog_->bmtable);
 117         int const button = fl_get_bmtable_numb(dialog_->bmtable);
 118         bool const both = (button == FL_MIDDLE_MOUSE ||
 119                            fl_get_button(dialog_->radio_both) != 0);
 120
 121         if (i >= 0) {
 122                 if (side || (button == FL_RIGHT_MOUSE))
 123                         right = i;
 124                 else {
 125                         left = i;
 126                         if (both) {
 127                                 right = delim_rversion[i];
 128                                 // Add left delimiter in "both" case if right one was pressed:
 129                                 for (int j = 0; j <= 23; ++j) {
 130                                         if (delim_rversion[j] == left) {
 131                                                 right = left;
 132                                                 left = j;
 133                                         }
 134                                 }
 135                         }
 136                 }
 137         }
 138
 139         // Re-initialize button_pix to solid blue
 140         // (not elegant but works, MV 24.5.2002)
 141         fl_free_pixmap_pixmap(dialog_->button_pix);
 142         fl_set_pixmap_data(dialog_->button_pix, const_cast<char**>(delim1));
 143         Pixmap p1;
 144         fl_get_pixmap_pixmap(dialog_->button_pix, &p1, 0);
 145
 146         fl_draw_bmtable_item(dialog_->bmtable, left, p1, 0, 0);
 147         fl_draw_bmtable_item(dialog_->bmtable, right, p1, 16, 0);
 148         fl_redraw_object(dialog_->button_pix);
 149
 150         dialog_->radio_left->u_ldata  = left;
 151         dialog_->radio_right->u_ldata = right;
 152
 153         return true;
 154 }