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