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 <cstdio>
  19 #include <cstdlib>
  20
  21 #include "lyx_gui_misc.h"
  22 #include "math_panel.h"
  23 #include "symbol_def.h"
  24 #include "formula.h"
  25 #include "lyxfunc.h"
  26 #include "gettext.h"
  27
  28 /* Bitmaps */
  29 #include "delim.xbm"
  30 #include "delim0.xpm"
  31 #include "delim.xpm"
  32 #include "deco.xbm"
  33 #include "deco.xpm"
  34 #include "space.xpm"
  35 #include "sqrt.xpm"
  36 #include "frac.xpm"
  37 #include "matrix.xpm"
  38 #include "equation.xpm"
  39
  40 static LyXFunc * lyxfunc= 0;
  41
  42 //static FD_panel* symb_form= 0;
  43
  44 FD_panel  * fd_panel;
  45 FD_delim  * fd_delim;
  46 FD_deco   * fd_deco;
  47 FD_space  * fd_space;
  48 FD_matrix * fd_matrix;
  49
  50 int delim_code[] = {
  51    '(', ')', LM_lceil,  LM_rceil,  LM_uparrow,  LM_Uparrow,
  52    '[', ']', LM_lfloor,  LM_rfloor,  LM_updownarrow, LM_Updownarrow,
  53    '{', '}',  '/', LM_backslash,  LM_downarrow,  LM_Downarrow,
  54    LM_langle,  LM_rangle, '|', LM_Vert, '.', 0
  55 };
  56
  57 // indexes to get the left and right versions of each delimiter
  58 // Contributed by Pablo De Napoli (pdenapo@dm.uba.ar)
  59 int delim_lversion[] = { 0,0,2,2,4,5,
  60                          6,6,8,8,10,11,
  61                          12,12,14,15,16,17,
  62                          18,18,20,21,22,23 };
  63
  64 int delim_rversion[] = { 1,1,3,3,4,5,
  65                         7,7,9,9,10,11,
  66                         13,13,14,15,16,17,
  67                         19,19,20,21,22,23 };
  68
  69
  70 static char const * deco_code[] = {
  71    "widehat", "widetilde", "overbrace", "overleftarrow", "overrightarrow",
  72    "overline", "underbrace", "underline"
  73 };
  74
  75
  76 static char const * func_code[] = {
  77     "arccos", "arcsin", "arctan", "arg", "bmod",
  78     "cos", "cosh", "cot", "coth", "csc", "deg",
  79     "det", "dim", "exp", "gcd", "hom", "inf", "ker",
  80     "lg", "lim", "liminf", "limsup", "ln", "log",
  81     "max", "min", "sec", "sin", "sinh", "sup",
  82     "tan", "tanh"
  83 };
  84
  85 static char h_align_str[80] = "c";
  86
  87 /* callbacks for form panel */
  88 void button_cb(FL_OBJECT * ob, long data)
  89 {
  90    extern void free_symbols_form();
  91    switch (data)  {
  92     case MM_GREEK:
  93     case MM_VARSIZE:
  94     case MM_BRELATS:
  95     case MM_ARROW:
  96     case MM_BOP:
  97     case MM_MISC:
  98       {
  99          BitmapMenu * menu = static_cast<BitmapMenu *>(ob->u_vdata);
 100          menu->Show();
 101          break;
 102       }
 103     case MM_FRAC:
 104        lyxfunc->Dispatch(LFUN_INSERT_MATH, "frac");
 105       break;
 106     case MM_SQRT:
 107        lyxfunc->Dispatch(LFUN_INSERT_MATH, "sqrt");
 108       break;
 109     case MM_DELIM:
 110       fl_show_form(fd_delim->delim, FL_PLACE_MOUSE, FL_FULLBORDER, _("Delimiter"));
 111        fl_set_form_atclose(fd_delim->delim, CancelCloseBoxCB, 0);
 112       break;
 113     case MM_DECO:
 114       fl_show_form(fd_deco->deco, FL_PLACE_MOUSE, FL_FULLBORDER, _("Decoration"));
 115        fl_set_form_atclose(fd_deco->deco, CancelCloseBoxCB, 0);
 116       break;
 117     case MM_SPACE:
 118       fl_show_form(fd_space->space, FL_PLACE_MOUSE, FL_FULLBORDER, _("Spacing"));
 119        fl_set_form_atclose(fd_space->space, CancelCloseBoxCB, 0);
 120       break;
 121     case MM_MATRIX:
 122       fl_show_form(fd_matrix->matrix, FL_PLACE_MOUSE, FL_FULLBORDER, _("Matrix"));
 123        fl_set_form_atclose(fd_matrix->matrix, CancelCloseBoxCB, 0);
 124       break;
 125     case MM_EQU:
 126        lyxfunc->Dispatch(LFUN_MATH_DISPLAY);
 127       break;
 128     case MM_FUNC:
 129       {
 130           int i = fl_get_browser(fd_panel->func_browse) - 1;
 131           lyxfunc->Dispatch(LFUN_INSERT_MATH, func_code[i]);
 132           break;
 133       }
 134     case 100:
 135       free_symbols_form();
 136       break;
 137    }
 138 }
 139
 140
 141 /* callbacks for form delim */
 142 void delim_cb(FL_OBJECT *, long data)
 143 {
 144    int left= fd_delim->left->u_ldata, right= fd_delim->right->u_ldata;
 145    int side= (fl_get_button(fd_delim->right)!= 0);
 146    Pixmap p1, p2;
 147
 148    switch (data) {
 149     case MM_APPLY:
 150     case MM_OK:
 151       {
 152          char s[80];
 153          sprintf(s, "%d %d", delim_code[left], delim_code[right]);
 154          lyxfunc->Dispatch(LFUN_MATH_DELIM, s);
 155          if (data == MM_APPLY) break;
 156       }
 157     case MM_CLOSE: fl_hide_form(fd_delim->delim); break;
 158     case 2:
 159       {
 160           int i = fl_get_bmtable(fd_delim->menu);
 161           int button = fl_get_bmtable_numb(fd_delim->menu);
 162           bool both = (button==FL_MIDDLE_MOUSE);
 163
 164           if (i>= 0) {
 165
 166               if (side || (button== FL_RIGHT_MOUSE)) {
 167                   right = i;
 168               } else {
 169                   left = i;
 170                   if (both)
 171                     right = delim_rversion[i];
 172               }
 173           }
 174           p1 = fl_get_pixmap_pixmap(fd_delim->pix, &p1, &p2);
 175           fl_draw_bmtable_item(fd_delim->menu, left, p1, 0, 0);
 176           fl_draw_bmtable_item(fd_delim->menu, right, p1, 16, 0);
 177           fl_redraw_object(fd_delim->pix);
 178
 179           fd_delim->left->u_ldata = left;
 180           fd_delim->right->u_ldata = right;
 181
 182           break;
 183       }
 184     case 3: break;
 185     case 4: break;
 186    }
 187 }
 188
 189 /* callbacks for form matrix */
 190 void matrix_cb(FL_OBJECT *, long data)
 191 {
 192    int nx, ny;
 193    static char v_align_c[] = "tcb";
 194
 195    switch (data) {
 196     case MM_APPLY:
 197     case MM_OK:
 198       {
 199          char s[80];
 200          char c = v_align_c[fl_get_choice(fd_matrix->valign)-1];
 201          char const * sh = fl_get_input(fd_matrix->halign);
 202          nx = int(fl_get_slider_value(fd_matrix->columns)+0.5);
 203          ny = int(fl_get_slider_value(fd_matrix->rows)+0.5);
 204          sprintf(s, "%d %d %c%s", nx, ny, c, sh);
 205          if (data == MM_OK) fl_hide_form(fd_matrix->matrix);
 206          lyxfunc->Dispatch(LFUN_INSERT_MATRIX, s);
 207          break;
 208       }
 209     case MM_CLOSE: fl_hide_form(fd_matrix->matrix); break;
 210     case 2:
 211       {
 212          nx = int(fl_get_slider_value(fd_matrix->columns)+0.5);
 213          for (int i= 0; i<nx; i++) h_align_str[i] = 'c';
 214          //memset(h_align_str, 'c', nx);
 215          h_align_str[nx] = '\0';
 216 //       fl_freeze_form(fd_form_main->form_main);
 217 //      fl_addto_form(fd_form_main->form_main);
 218
 219          fl_set_input(fd_matrix->halign, h_align_str);
 220          fl_redraw_object(fd_matrix->halign);
 221          break;
 222       }
 223    }
 224 }
 225
 226 /* callbacks for form deco */
 227 void deco_cb(FL_OBJECT *, long data)
 228 {
 229    switch (data) {
 230     case MM_APPLY:
 231     case MM_OK:
 232       {
 233          int i = fl_get_bmtable(fd_deco->menu);
 234          lyxfunc->Dispatch(LFUN_INSERT_MATH, deco_code[i]);
 235          if (data == MM_APPLY) break;
 236       }
 237     case MM_CLOSE: fl_hide_form(fd_deco->deco); break;
 238    }
 239 }
 240
 241
 242 /* callbacks for form space */
 243 void space_cb(FL_OBJECT *, long data)
 244 {
 245    static short sp = -1;
 246    extern char * latex_mathspace[];
 247
 248    if (data >= 0 && data < 6)
 249       sp = short(data);
 250    else
 251    switch (data) {
 252     case MM_APPLY:
 253     case MM_OK:
 254       {
 255           if (sp>= 0)
 256             lyxfunc->Dispatch(LFUN_INSERT_MATH, latex_mathspace[sp]);
 257          if (data == MM_APPLY) break;
 258       }
 259     case MM_CLOSE: fl_hide_form(fd_space->space); break;
 260    }
 261 }
 262
 263
 264 extern "C" int align_filter(FL_OBJECT *, char const *, char const * cur, int c)
 265 {
 266    int n = int(fl_get_slider_value(fd_matrix->columns)+0.5) - strlen(cur);
 267    return ((c == 'c'||c == 'l'||c == 'r') && n>= 0) ? FL_VALID: FL_INVALID;
 268 }
 269
 270
 271 char ** mathed_get_pixmap_from_icon(int d)
 272 {
 273    switch (d) {
 274     case MM_FRAC: return frac;
 275     case MM_SQRT: return sqrt;
 276     case MM_DELIM: return delim;
 277     case MM_MATRIX: return matrix;
 278     case MM_EQU: return equation;
 279     case MM_DECO: return deco;
 280     case MM_SPACE: return space_xpm;
 281     default: return 0;
 282    }
 283 }
 284
 285
 286 FD_panel * create_math_panel( )
 287 {
 288    fd_panel = create_form_panel();
 289    fd_delim = create_form_delim();
 290    fd_deco = create_form_deco();
 291    fd_space = create_form_space();
 292    fd_matrix = create_form_matrix();
 293
 294    /* fill-in form initialization code */
 295    fl_set_button(fd_delim->left, 1);
 296    fl_set_pixmap_data(fd_delim->pix, delim0);
 297    fl_set_bmtable_data(fd_delim->menu, 6, 4, delim_width, delim_height,
 298                        delim_bits);
 299    fl_set_bmtable_maxitems(fd_delim->menu, 23);
 300
 301    fl_set_pixmap_data(fd_panel->sqrt, sqrt);
 302    fl_set_pixmap_data(fd_panel->frac, frac);
 303    fl_set_pixmap_data(fd_panel->delim, delim);
 304    fl_set_pixmap_data(fd_panel->deco, deco);
 305    fl_set_pixmap_data(fd_panel->space, space_xpm);
 306    fl_set_pixmap_data(fd_panel->matrix, matrix);
 307    fl_set_pixmap_data(fd_panel->equation, equation);
 308
 309    for (int i= 0; i<32; i++) {
 310        fl_add_browser_line(fd_panel->func_browse, func_code[i]);
 311    }
 312
 313    fl_addto_choice(fd_matrix->valign, _("Top | Center | Bottom"));
 314    fl_set_choice(fd_matrix->valign, 2);
 315    fl_set_input(fd_matrix->halign, h_align_str);
 316    fl_set_input_filter(fd_matrix->halign, align_filter);
 317
 318    fl_set_bmtable_data(fd_deco->menu, 3, 3, deco_width, deco_height,
 319                        deco_bits);
 320    fl_set_bmtable_maxitems(fd_deco->menu, 8);
 321
 322    fd_delim->left->u_ldata = 0;
 323    fd_delim->right->u_ldata = 1;
 324
 325    return fd_panel;
 326 }
 327
 328 extern BitmapMenu* sym_menu;
 329 extern void  create_symbol_menues(FD_panel *);
 330
 331
 332 void free_symbols_form()
 333 {
 334    if (fd_panel) {
 335       fl_hide_form(fd_panel->panel);
 336       fl_free_form(fd_panel->panel);
 337       delete sym_menu;
 338       delete fd_panel;
 339       fd_panel = 0;
 340    }
 341 }
 342
 343
 344 extern "C" int AtClose_symbols_form(FL_FORM *, void *)
 345 {
 346   free_symbols_form();
 347   return FL_IGNORE;
 348 }
 349
 350
 351 void show_symbols_form(LyXFunc * lf)
 352 {
 353     lyxfunc = lf;
 354     if (!fd_panel) {
 355         fd_panel = create_math_panel();
 356         fl_register_raw_callback(fd_panel->panel,
 357                                  ButtonPressMask|KeyPressMask, C_peek_event);
 358         create_symbol_menues(fd_panel);
 359         fl_set_form_atclose(fd_panel->panel, AtClose_symbols_form, 0);
 360     }
 361     if (fd_panel->panel->visible) {
 362         fl_raise_form(fd_panel->panel);
 363     } else {
 364       fl_show_form(fd_panel->panel, FL_PLACE_MOUSE,
 365                    FL_FULLBORDER, _("Math Panel"));
 366     }
 367 }