src/mathed/math_panel.C

   1 /*
   2  *  File:        math_panel.C
   3  *  Purpose:     Mathed GUI for lyx
   4  *  Author:      Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
   5  *  Created:     March 28, 1996
   6  *
   7  *  Dependencies: Xlib, Xpm, XForms, Lyx
   8  *
   9  *  Copyright: (c) 1996, Alejandro Aguilar Sierra
  10  *
  11  *   You are free to use and modify it under the terms of
  12  *   the GNU General Public Licence version 2 or later.
  13  */
  14
  15 #include <config.h>
  16
  17 #include FORMS_H_LOCATION
  18 #include <cstdlib>
  19
  20 #include "lyx_gui_misc.h"
  21 #include "math_panel.h"
  22 #include "symbol_def.h"
  23 #include "formula.h"
  24 #include "lyxfunc.h"
  25 #include "gettext.h"
  26
  27 /* Bitmaps */
  28 #include "delim.xbm"
  29 #include "delim0.xpm"
  30 #include "delim.xpm"
  31 #include "deco.xbm"
  32 #include "deco.xpm"
  33 #include "space.xpm"
  34 #include "sqrt.xpm"
  35 #include "frac.xpm"
  36 #include "matrix.xpm"
  37 #include "equation.xpm"
  38
  39 static LyXFunc * lyxfunc= 0;
  40
  41 //static FD_panel* symb_form= 0;
  42
  43 FD_panel  * fd_panel;
  44 FD_delim  * fd_delim;
  45 FD_deco   * fd_deco;
  46 FD_space  * fd_space;
  47 FD_matrix * fd_matrix;
  48
  49 int delim_code[] = {
  50    '(', ')', LM_lceil,  LM_rceil,  LM_uparrow,  LM_Uparrow,
  51    '[', ']', LM_lfloor,  LM_rfloor,  LM_updownarrow, LM_Updownarrow,
  52    '{', '}',  '/', LM_backslash,  LM_downarrow,  LM_Downarrow,
  53    LM_langle,  LM_rangle, '|', LM_Vert, '.', 0
  54 };
  55
  56 // indexes to get the left and right versions of each delimiter
  57 // Contributed by Pablo De Napoli (pdenapo@dm.uba.ar)
  58 int delim_lversion[] = { 0,0,2,2,4,5,
  59                          6,6,8,8,10,11,
  60                          12,12,14,15,16,17,
  61                          18,18,20,21,22,23 };
  62
  63 int delim_rversion[] = { 1,1,3,3,4,5,
  64                         7,7,9,9,10,11,
  65                         13,13,14,15,16,17,
  66                         19,19,20,21,22,23 };
  67
  68
  69 static char const * deco_code[] = {
  70    "widehat", "widetilde", "overbrace", "overleftarrow", "overrightarrow",
  71    "overline", "underbrace", "underline"
  72 };
  73
  74
  75 static char const * func_code[] = {
  76     "arccos", "arcsin", "arctan", "arg", "bmod",
  77     "cos", "cosh", "cot", "coth", "csc", "deg",
  78     "det", "dim", "exp", "gcd", "hom", "inf", "ker",
  79     "lg", "lim", "liminf", "limsup", "ln", "log",
  80     "max", "min", "sec", "sin", "sinh", "sup",
  81     "tan", "tanh"
  82 };
  83
  84 static char h_align_str[80] = "c";
  85
  86 /* callbacks for form panel */
  87 void button_cb(FL_OBJECT * ob, long data)
  88 {
  89    extern void free_symbols_form();
  90    switch (data)  {
  91     case MM_GREEK:
  92     case MM_VARSIZE:
  93     case MM_BRELATS:
  94     case MM_ARROW:
  95     case MM_BOP:
  96     case MM_MISC:
  97       {
  98          BitmapMenu * menu = static_cast<BitmapMenu *>(ob->u_vdata);
  99          menu->Show();
 100          break;
 101       }
 102     case MM_FRAC:
 103        lyxfunc->Dispatch(LFUN_INSERT_MATH, "frac");
 104       break;
 105     case MM_SQRT:
 106        lyxfunc->Dispatch(LFUN_INSERT_MATH, "sqrt");
 107       break;
 108     case MM_DELIM:
 109       fl_show_form(fd_delim->delim, FL_PLACE_MOUSE, FL_FULLBORDER, _("Delimiter"));
 110        fl_set_form_atclose(fd_delim->delim, CancelCloseBoxCB, 0);
 111       break;
 112     case MM_DECO:
 113       fl_show_form(fd_deco->deco, FL_PLACE_MOUSE, FL_FULLBORDER, _("Decoration"));
 114        fl_set_form_atclose(fd_deco->deco, CancelCloseBoxCB, 0);
 115       break;
 116     case MM_SPACE:
 117       fl_show_form(fd_space->space, FL_PLACE_MOUSE, FL_FULLBORDER, _("Spacing"));
 118        fl_set_form_atclose(fd_space->space, CancelCloseBoxCB, 0);
 119       break;
 120     case MM_MATRIX:
 121       fl_show_form(fd_matrix->matrix, FL_PLACE_MOUSE, FL_FULLBORDER, _("Matrix"));
 122        fl_set_form_atclose(fd_matrix->matrix, CancelCloseBoxCB, 0);
 123       break;
 124     case MM_EQU:
 125        lyxfunc->Dispatch(LFUN_MATH_DISPLAY);
 126       break;
 127     case MM_FUNC:
 128       {
 129           int i = fl_get_browser(fd_panel->func_browse) - 1;
 130           lyxfunc->Dispatch(LFUN_INSERT_MATH, func_code[i]);
 131           break;
 132       }
 133     case 100:
 134       free_symbols_form();
 135       break;
 136    }
 137 }
 138
 139
 140 /* callbacks for form delim */
 141 void delim_cb(FL_OBJECT *, long data)
 142 {
 143    int left= fd_delim->left->u_ldata, right= fd_delim->right->u_ldata;
 144    int side= (fl_get_button(fd_delim->right)!= 0);
 145
 146    switch (data) {
 147     case MM_APPLY:
 148     case MM_OK:
 149       {
 150          char s[80];
 151          sprintf(s, "%d %d", delim_code[left], delim_code[right]);
 152          lyxfunc->Dispatch(LFUN_MATH_DELIM, s);
 153          if (data == MM_APPLY) break;
 154       }
 155     case MM_CLOSE: fl_hide_form(fd_delim->delim); break;
 156     case 2:
 157       {
 158           int i = fl_get_bmtable(fd_delim->menu);
 159           int button = fl_get_bmtable_numb(fd_delim->menu);
 160           bool both = (button==FL_MIDDLE_MOUSE);
 161
 162           if (i>= 0) {
 163
 164               if (side || (button== FL_RIGHT_MOUSE)) {
 165                   right = i;
 166               } else {
 167                   left = i;
 168                   if (both)
 169                     right = delim_rversion[i];
 170               }
 171           }
 172           Pixmap p1, p2;
 173           p1 = fl_get_pixmap_pixmap(fd_delim->pix, &p1, &p2);
 174           fl_draw_bmtable_item(fd_delim->menu, left, p1, 0, 0);
 175           fl_draw_bmtable_item(fd_delim->menu, right, p1, 16, 0);
 176           fl_redraw_object(fd_delim->pix);
 177
 178           fd_delim->left->u_ldata = left;
 179           fd_delim->right->u_ldata = right;
 180
 181           break;
 182       }
 183     case 3: break;
 184     case 4: break;
 185    }
 186 }
 187
 188 /* callbacks for form matrix */
 189 void matrix_cb(FL_OBJECT *, long data)
 190 {
 191    static char v_align_c[] = "tcb";
 192
 193    switch (data) {
 194     case MM_APPLY:
 195     case MM_OK:
 196       {
 197          char s[80];
 198          char c = v_align_c[fl_get_choice(fd_matrix->valign)-1];
 199          char const * sh = fl_get_input(fd_matrix->halign);
 200          int nx = int(fl_get_slider_value(fd_matrix->columns)+0.5);
 201          int ny = int(fl_get_slider_value(fd_matrix->rows)+0.5);
 202          sprintf(s, "%d %d %c%s", nx, ny, c, sh);
 203          if (data == MM_OK) fl_hide_form(fd_matrix->matrix);
 204          lyxfunc->Dispatch(LFUN_INSERT_MATRIX, s);
 205          break;
 206       }
 207     case MM_CLOSE: fl_hide_form(fd_matrix->matrix); break;
 208     case 2:
 209       {
 210          int nx = int(fl_get_slider_value(fd_matrix->columns)+0.5);
 211          for (int i= 0; i<nx; i++) h_align_str[i] = 'c';
 212          //memset(h_align_str, 'c', nx);
 213          h_align_str[nx] = '\0';
 214 //       fl_freeze_form(fd_form_main->form_main);
 215 //      fl_addto_form(fd_form_main->form_main);
 216
 217          fl_set_input(fd_matrix->halign, h_align_str);
 218          fl_redraw_object(fd_matrix->halign);
 219          break;
 220       }
 221    }
 222 }
 223
 224 /* callbacks for form deco */
 225 void deco_cb(FL_OBJECT *, long data)
 226 {
 227    switch (data) {
 228     case MM_APPLY:
 229     case MM_OK:
 230       {
 231          int i = fl_get_bmtable(fd_deco->menu);
 232          lyxfunc->Dispatch(LFUN_INSERT_MATH, deco_code[i]);
 233          if (data == MM_APPLY) break;
 234       }
 235     case MM_CLOSE: fl_hide_form(fd_deco->deco); break;
 236    }
 237 }
 238
 239
 240 /* callbacks for form space */
 241 void space_cb(FL_OBJECT *, long data)
 242 {
 243    static short sp = -1;
 244    extern char * latex_mathspace[];
 245
 246    if (data >= 0 && data < 6)
 247       sp = short(data);
 248    else
 249    switch (data) {
 250     case MM_APPLY:
 251     case MM_OK:
 252       {
 253           if (sp>= 0)
 254             lyxfunc->Dispatch(LFUN_INSERT_MATH, latex_mathspace[sp]);
 255          if (data == MM_APPLY) break;
 256       }
 257     case MM_CLOSE: fl_hide_form(fd_space->space); break;
 258    }
 259 }
 260
 261
 262 extern "C" int align_filter(FL_OBJECT *, char const *, char const * cur, int c)
 263 {
 264    int n = int(fl_get_slider_value(fd_matrix->columns)+0.5) - strlen(cur);
 265    return ((c == 'c'||c == 'l'||c == 'r') && n>= 0) ? FL_VALID: FL_INVALID;
 266 }
 267
 268
 269 char const ** mathed_get_pixmap_from_icon(int d)
 270 {
 271    switch (d) {
 272     case MM_FRAC: return frac;
 273     case MM_SQRT: return sqrt_xpm;
 274     case MM_DELIM: return delim;
 275     case MM_MATRIX: return matrix;
 276     case MM_EQU: return equation;
 277     case MM_DECO: return deco;
 278     case MM_SPACE: return space_xpm;
 279     default: return 0;
 280    }
 281 }
 282
 283
 284 FD_panel * create_math_panel( )
 285 {
 286    fd_panel = create_form_panel();
 287    fd_delim = create_form_delim();
 288    fd_deco = create_form_deco();
 289    fd_space = create_form_space();
 290    fd_matrix = create_form_matrix();
 291
 292    /* fill-in form initialization code */
 293    fl_set_button(fd_delim->left, 1);
 294    fl_set_pixmap_data(fd_delim->pix, const_cast<char**>(delim0));
 295    fl_set_bmtable_data(fd_delim->menu, 6, 4, delim_width, delim_height,
 296                        delim_bits);
 297    fl_set_bmtable_maxitems(fd_delim->menu, 23);
 298
 299    fl_set_pixmap_data(fd_panel->sqrt, const_cast<char**>(sqrt_xpm));
 300    fl_set_pixmap_data(fd_panel->frac, const_cast<char**>(frac));
 301    fl_set_pixmap_data(fd_panel->delim, const_cast<char**>(delim));
 302    fl_set_pixmap_data(fd_panel->deco, const_cast<char**>(deco));
 303    fl_set_pixmap_data(fd_panel->space, const_cast<char**>(space_xpm));
 304    fl_set_pixmap_data(fd_panel->matrix, const_cast<char**>(matrix));
 305    fl_set_pixmap_data(fd_panel->equation, const_cast<char**>(equation));
 306
 307    for (int i = 0; i < 32; ++i) {
 308        fl_add_browser_line(fd_panel->func_browse, func_code[i]);
 309    }
 310
 311    fl_addto_choice(fd_matrix->valign, _("Top | Center | Bottom"));
 312    fl_set_choice(fd_matrix->valign, 2);
 313    fl_set_input(fd_matrix->halign, h_align_str);
 314    fl_set_input_filter(fd_matrix->halign, align_filter);
 315
 316    fl_set_bmtable_data(fd_deco->menu, 3, 3, deco_width, deco_height,
 317                        deco_bits);
 318    fl_set_bmtable_maxitems(fd_deco->menu, 8);
 319
 320    fd_delim->left->u_ldata = 0;
 321    fd_delim->right->u_ldata = 1;
 322
 323    return fd_panel;
 324 }
 325
 326 extern BitmapMenu* sym_menu;
 327 extern void  create_symbol_menues(FD_panel *);
 328
 329
 330 void free_symbols_form()
 331 {
 332    if (fd_panel) {
 333       fl_hide_form(fd_panel->panel);
 334       fl_free_form(fd_panel->panel);
 335       delete sym_menu;
 336       delete fd_panel;
 337       fd_panel = 0;
 338    }
 339 }
 340
 341
 342 extern "C" int AtClose_symbols_form(FL_FORM *, void *)
 343 {
 344   free_symbols_form();
 345   return FL_IGNORE;
 346 }
 347
 348
 349 void show_symbols_form(LyXFunc * lf)
 350 {
 351     lyxfunc = lf;
 352     if (!fd_panel) {
 353         fd_panel = create_math_panel();
 354         fl_register_raw_callback(fd_panel->panel,
 355                                  ButtonPressMask|KeyPressMask, C_peek_event);
 356         create_symbol_menues(fd_panel);
 357         fl_set_form_atclose(fd_panel->panel, AtClose_symbols_form, 0);
 358     }
 359     if (fd_panel->panel->visible) {
 360         fl_raise_form(fd_panel->panel);
 361     } else {
 362       fl_show_form(fd_panel->panel, FL_PLACE_MOUSE,
 363                    FL_FULLBORDER, _("Math Panel"));
 364     }
 365 }