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
  17 #include "FormMathsDelim.h"
  18 #include "forms/form_maths_delim.h"
  19 #include "ControlMath.h"
  20 #include "xformsBC.h"
  21 #include "ButtonController.h"
  22
  23 #include "bmtable.h"
  24
  25 #include "support/lstrings.h"
  26
  27 #include "Lsstream.h"
  28
  29 #include FORMS_H_LOCATION
  30
  31 #include "delim.xbm"
  32 #include "delim0.xpm"
  33 #include "delim1.xpm"
  34
  35
  36 static int const delim_rversion[] = {
  37 1,1,3,3,4,5,7,7,9,9,10,11,
  38
  39 };
  40
  41
  42 static char const * delim_values[] = {
  43         "(", ")", "lceil",  "rceil",  "uparrow",  "Uparrow",
  44         "[", "]", "lfloor", "rfloor", "updownarrow", "Updownarrow",
  45         "{", "}",  "/", "backslash",  "downarrow",  "Downarrow",
  46         "langle",  "rangle", "|", "Vert", ".", 0
  47 };
  48
  49 using std::endl;
  50
  51
  52 typedef FormCB<ControlMathSub, FormDB<FD_maths_delim> > base_class;
  53
  54 FormMathsDelim::FormMathsDelim()
  55         : base_class(_("Maths Delimiters"), false)
  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         bcview().setOK(dialog_->button_ok);
  75         bcview().setApply(dialog_->button_apply);
  76         bcview().setCancel(dialog_->button_close);
  77
  78         bcview().addReadOnly(dialog_->bmtable);
  79         bcview().addReadOnly(dialog_->radio_right);
  80         bcview().addReadOnly(dialog_->radio_left);
  81         bcview().addReadOnly(dialog_->radio_both);
  82         bcview().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 os;
  92         os << delim_values[left] << ' ' << delim_values[right];
  93         controller().dispatchFunc(LFUN_MATH_DELIM, STRCONV(os.str()));
  94 }
  95
  96
  97 void FormMathsDelim::update()
  98 {
  99         bc().valid();
 100 }
 101
 102
 103 ButtonPolicy::SMInput FormMathsDelim::input(FL_OBJECT *, long)
 104 {
 105         int left = int(dialog_->radio_left->u_ldata);
 106         int right= int(dialog_->radio_right->u_ldata);
 107         int const side = (fl_get_button(dialog_->radio_right) != 0);
 108
 109         int const i = fl_get_bmtable(dialog_->bmtable);
 110         int const button = fl_get_bmtable_numb(dialog_->bmtable);
 111         bool const both = (button == FL_MIDDLE_MOUSE ||
 112                            fl_get_button(dialog_->radio_both) != 0);
 113
 114         if (i >= 0) {
 115                 if (side || (button == FL_RIGHT_MOUSE))
 116                         right = i;
 117                 else {
 118                         left = i;
 119                         if (both) {
 120                                 right = delim_rversion[i];
 121                                 // Add left delimiter in "both" case if right one was pressed:
 122                                 for (int j = 0; j <= 23; ++j) {
 123                                         if (delim_rversion[j] == left) {
 124                                                 right = left;
 125                                                 left = j;
 126                                         }
 127                                 }
 128                         }
 129                 }
 130         }
 131
 132         // Re-initialize button_pix to solid blue
 133         // (not elegant but works, MV 24.5.2002)
 134         fl_free_pixmap_pixmap(dialog_->button_pix);
 135         fl_set_pixmap_data(dialog_->button_pix, const_cast<char**>(delim1));
 136         Pixmap p1;
 137         fl_get_pixmap_pixmap(dialog_->button_pix, &p1, 0);
 138
 139         fl_draw_bmtable_item(dialog_->bmtable, left, p1, 0, 0);
 140         fl_draw_bmtable_item(dialog_->bmtable, right, p1, 16, 0);
 141         fl_redraw_object(dialog_->button_pix);
 142
 143         dialog_->radio_left->u_ldata  = left;
 144         dialog_->radio_right->u_ldata = right;
 145
 146         return ButtonPolicy::SMI_VALID;
 147 }