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: 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 #ifdef HAVE_SSTREAM
  18 #include <sstream>
  19 #else
  20 #include <strstream>
  21 #endif
  22
  23 #include FORMS_H_LOCATION
  24
  25 #include "lyx_gui_misc.h"
  26 #include "math_panel.h"
  27 #include "symbol_def.h"
  28 #include "formula.h"
  29 #include "lyxfunc.h"
  30 #include "gettext.h"
  31
  32 /* Bitmaps */
  33 #include "delim.xbm"
  34 #include "delim0.xpm"
  35 #include "delim.xpm"
  36 #include "deco.xbm"
  37 #include "deco.xpm"
  38 #include "space.xpm"
  39 #include "sqrt.xpm"
  40 #include "frac.xpm"
  41 #include "matrix.xpm"
  42 #include "equation.xpm"
  43
  44 static LyXFunc * lyxfunc = 0;
  45
  46 //static FD_panel* symb_form= 0;
  47
  48 FD_panel  * fd_panel;
  49 FD_delim  * fd_delim;
  50 FD_deco   * fd_deco;
  51 FD_space  * fd_space;
  52 FD_matrix * fd_matrix;
  53
  54 int delim_code[] = {
  55    '(', ')', LM_lceil,  LM_rceil,  LM_uparrow,  LM_Uparrow,
  56    '[', ']', LM_lfloor,  LM_rfloor,  LM_updownarrow, LM_Updownarrow,
  57    '{', '}',  '/', LM_backslash,  LM_downarrow,  LM_Downarrow,
  58    LM_langle,  LM_rangle, '|', LM_Vert, '.', 0
  59 };
  60
  61 // indexes to get the left and right versions of each delimiter
  62 // Contributed by Pablo De Napoli (pdenapo@dm.uba.ar)
  63 int delim_lversion[] = { 0,0,2,2,4,5,
  64                          6,6,8,8,10,11,
  65                          12,12,14,15,16,17,
  66                          18,18,20,21,22,23 };
  67
  68 int delim_rversion[] = { 1,1,3,3,4,5,
  69                         7,7,9,9,10,11,
  70                         13,13,14,15,16,17,
  71                         19,19,20,21,22,23 };
  72
  73
  74 static char const * deco_code[] = {
  75    "widehat", "widetilde", "overbrace", "overleftarrow", "overrightarrow",
  76    "overline", "underbrace", "underline"
  77 };
  78
  79
  80 static char const * func_code[] = {
  81     "arccos", "arcsin", "arctan", "arg", "bmod",
  82     "cos", "cosh", "cot", "coth", "csc", "deg",
  83     "det", "dim", "exp", "gcd", "hom", "inf", "ker",
  84     "lg", "lim", "liminf", "limsup", "ln", "log",
  85     "max", "min", "sec", "sin", "sinh", "sup",
  86     "tan", "tanh"
  87 };
  88
  89 static char h_align_str[80] = "c";
  90
  91 /* callbacks for form panel */
  92 void button_cb(FL_OBJECT * ob, long data)
  93 {
  94    extern void free_symbols_form();
  95    switch (data)  {
  96     case MM_GREEK:
  97     case MM_VARSIZE:
  98     case MM_BRELATS:
  99     case MM_ARROW:
 100     case MM_BOP:
 101     case MM_MISC:
 102       {
 103          BitmapMenu * menu = static_cast<BitmapMenu *>(ob->u_vdata);
 104          menu->Show();
 105          break;
 106       }
 107     case MM_FRAC:
 108        lyxfunc->Dispatch(LFUN_INSERT_MATH, "frac");
 109       break;
 110     case MM_SQRT:
 111        lyxfunc->Dispatch(LFUN_INSERT_MATH, "sqrt");
 112       break;
 113     case MM_DELIM:
 114       fl_show_form(fd_delim->delim, FL_PLACE_MOUSE, FL_FULLBORDER, _("Delimiter"));
 115        fl_set_form_atclose(fd_delim->delim, CancelCloseBoxCB, 0);
 116       break;
 117     case MM_DECO:
 118       fl_show_form(fd_deco->deco, FL_PLACE_MOUSE, FL_FULLBORDER, _("Decoration"));
 119        fl_set_form_atclose(fd_deco->deco, CancelCloseBoxCB, 0);
 120       break;
 121     case MM_SPACE:
 122       fl_show_form(fd_space->space, FL_PLACE_MOUSE, FL_FULLBORDER, _("Spacing"));
 123        fl_set_form_atclose(fd_space->space, CancelCloseBoxCB, 0);
 124       break;
 125     case MM_MATRIX:
 126       fl_show_form(fd_matrix->matrix, FL_PLACE_MOUSE, FL_FULLBORDER, _("Matrix"));
 127        fl_set_form_atclose(fd_matrix->matrix, CancelCloseBoxCB, 0);
 128       break;
 129     case MM_EQU:
 130        lyxfunc->Dispatch(LFUN_MATH_DISPLAY);
 131       break;
 132     case MM_FUNC:
 133       {
 134           int i = fl_get_browser(fd_panel->func_browse) - 1;
 135           lyxfunc->Dispatch(LFUN_INSERT_MATH, func_code[i]);
 136           break;
 137       }
 138     case 100:
 139       free_symbols_form();
 140       break;
 141    }
 142 }
 143
 144
 145 /* callbacks for form delim */
 146 void delim_cb(FL_OBJECT *, long data)
 147 {
 148    int left= fd_delim->left->u_ldata, right= fd_delim->right->u_ldata;
 149    int side= (fl_get_button(fd_delim->right)!= 0);
 150
 151    switch (data) {
 152     case MM_APPLY:
 153     case MM_OK:
 154       {
 155 #ifdef HAVE_SSTREAM
 156               std::ostringstream ost;
 157               ost << delim_code[left] << ' ' << delim_code[right];
 158               lyxfunc->Dispatch(LFUN_MATH_DELIM, ost.str().c_str());
 159 #else
 160               char s[80];
 161               ostrstream ost(s, 80);
 162               ost << delim_code[left] << ' ' << delim_code[right] << '\0';
 163               lyxfunc->Dispatch(LFUN_MATH_DELIM, ost.str());
 164 #endif
 165               if (data == MM_APPLY) break;
 166       }
 167     case MM_CLOSE: fl_hide_form(fd_delim->delim); break;
 168     case 2:
 169       {
 170           int i = fl_get_bmtable(fd_delim->menu);
 171           int button = fl_get_bmtable_numb(fd_delim->menu);
 172           bool both = (button==FL_MIDDLE_MOUSE);
 173
 174           if (i>= 0) {
 175
 176               if (side || (button== FL_RIGHT_MOUSE)) {
 177                   right = i;
 178               } else {
 179                   left = i;
 180                   if (both)
 181                     right = delim_rversion[i];
 182               }
 183           }
 184           Pixmap p1, p2;
 185           p1 = fl_get_pixmap_pixmap(fd_delim->pix, &p1, &p2);
 186           fl_draw_bmtable_item(fd_delim->menu, left, p1, 0, 0);
 187           fl_draw_bmtable_item(fd_delim->menu, right, p1, 16, 0);
 188           fl_redraw_object(fd_delim->pix);
 189
 190           fd_delim->left->u_ldata = left;
 191           fd_delim->right->u_ldata = right;
 192
 193           break;
 194       }
 195     case 3: break;
 196     case 4: break;
 197    }
 198 }
 199
 200 /* callbacks for form matrix */
 201 void matrix_cb(FL_OBJECT *, long data)
 202 {
 203    static char v_align_c[] = "tcb";
 204
 205    switch (data) {
 206     case MM_APPLY:
 207     case MM_OK:
 208       {
 209          char c = v_align_c[fl_get_choice(fd_matrix->valign)-1];
 210          char const * sh = fl_get_input(fd_matrix->halign);
 211          int nx = int(fl_get_slider_value(fd_matrix->columns)+0.5);
 212          int ny = int(fl_get_slider_value(fd_matrix->rows)+0.5);
 213          if (data == MM_OK) fl_hide_form(fd_matrix->matrix);
 214 #ifdef HAVE_SSTREAM
 215          std::ostringstream ost;
 216          ost << nx << ' ' << ny << ' ' << c << sh;
 217          lyxfunc->Dispatch(LFUN_INSERT_MATRIX, ost.str().c_str());
 218 #else
 219          char s[80];
 220          ostrstream ost(s, 80);
 221          ost << nx << ' ' << ny << ' ' << c << sh << '\0';
 222          lyxfunc->Dispatch(LFUN_INSERT_MATRIX, ost.str());
 223 #endif
 224          break;
 225       }
 226     case MM_CLOSE: fl_hide_form(fd_matrix->matrix); break;
 227     case 2:
 228       {
 229          int nx = int(fl_get_slider_value(fd_matrix->columns)+0.5);
 230          for (int i = 0; i < nx; ++i) h_align_str[i] = 'c';
 231          //memset(h_align_str, 'c', nx);
 232          h_align_str[nx] = '\0';
 233 //       fl_freeze_form(fd_form_main->form_main);
 234 //      fl_addto_form(fd_form_main->form_main);
 235
 236          fl_set_input(fd_matrix->halign, h_align_str);
 237          fl_redraw_object(fd_matrix->halign);
 238          break;
 239       }
 240    }
 241 }
 242
 243 /* callbacks for form deco */
 244 void deco_cb(FL_OBJECT *, long data)
 245 {
 246    switch (data) {
 247     case MM_APPLY:
 248     case MM_OK:
 249       {
 250          int i = fl_get_bmtable(fd_deco->menu);
 251          lyxfunc->Dispatch(LFUN_INSERT_MATH, deco_code[i]);
 252          if (data == MM_APPLY) break;
 253       }
 254     case MM_CLOSE: fl_hide_form(fd_deco->deco); break;
 255    }
 256 }
 257
 258
 259 /* callbacks for form space */
 260 void space_cb(FL_OBJECT *, long data)
 261 {
 262    static short sp = -1;
 263    extern char * latex_mathspace[];
 264
 265    if (data >= 0 && data < 6)
 266       sp = short(data);
 267    else
 268    switch (data) {
 269     case MM_APPLY:
 270     case MM_OK:
 271       {
 272           if (sp>= 0)
 273             lyxfunc->Dispatch(LFUN_INSERT_MATH, latex_mathspace[sp]);
 274          if (data == MM_APPLY) break;
 275       }
 276     case MM_CLOSE: fl_hide_form(fd_space->space); break;
 277    }
 278 }
 279
 280
 281 extern "C" int align_filter(FL_OBJECT *, char const *, char const * cur, int c)
 282 {
 283    int n = int(fl_get_slider_value(fd_matrix->columns)+0.5) - strlen(cur);
 284    return ((c == 'c'||c == 'l'||c == 'r') && n>= 0) ? FL_VALID: FL_INVALID;
 285 }
 286
 287
 288 char const ** mathed_get_pixmap_from_icon(int d)
 289 {
 290    switch (d) {
 291     case MM_FRAC: return frac;
 292     case MM_SQRT: return sqrt_xpm;
 293     case MM_DELIM: return delim;
 294     case MM_MATRIX: return matrix;
 295     case MM_EQU: return equation;
 296     case MM_DECO: return deco;
 297     case MM_SPACE: return space_xpm;
 298     default: return 0;
 299    }
 300 }
 301
 302
 303 FD_panel * create_math_panel( )
 304 {
 305    fd_panel = create_form_panel();
 306    fd_delim = create_form_delim();
 307    fd_deco = create_form_deco();
 308    fd_space = create_form_space();
 309    fd_matrix = create_form_matrix();
 310
 311    /* fill-in form initialization code */
 312    fl_set_button(fd_delim->left, 1);
 313    fl_set_pixmap_data(fd_delim->pix, const_cast<char**>(delim0));
 314    fl_set_bmtable_data(fd_delim->menu, 6, 4, delim_width, delim_height,
 315                        delim_bits);
 316    fl_set_bmtable_maxitems(fd_delim->menu, 23);
 317
 318    fl_set_pixmap_data(fd_panel->sqrt, const_cast<char**>(sqrt_xpm));
 319    fl_set_pixmap_data(fd_panel->frac, const_cast<char**>(frac));
 320    fl_set_pixmap_data(fd_panel->delim, const_cast<char**>(delim));
 321    fl_set_pixmap_data(fd_panel->deco, const_cast<char**>(deco));
 322    fl_set_pixmap_data(fd_panel->space, const_cast<char**>(space_xpm));
 323    fl_set_pixmap_data(fd_panel->matrix, const_cast<char**>(matrix));
 324    fl_set_pixmap_data(fd_panel->equation, const_cast<char**>(equation));
 325
 326    for (int i = 0; i < 32; ++i) {
 327        fl_add_browser_line(fd_panel->func_browse, func_code[i]);
 328    }
 329
 330    fl_addto_choice(fd_matrix->valign, _("Top | Center | Bottom"));
 331    fl_set_choice(fd_matrix->valign, 2);
 332    fl_set_input(fd_matrix->halign, h_align_str);
 333    fl_set_input_filter(fd_matrix->halign, align_filter);
 334
 335    fl_set_bmtable_data(fd_deco->menu, 3, 3, deco_width, deco_height,
 336                        deco_bits);
 337    fl_set_bmtable_maxitems(fd_deco->menu, 8);
 338
 339    fd_delim->left->u_ldata = 0;
 340    fd_delim->right->u_ldata = 1;
 341
 342    return fd_panel;
 343 }
 344
 345 extern BitmapMenu * sym_menu;
 346 extern void  create_symbol_menues(FD_panel *);
 347
 348
 349 void free_symbols_form()
 350 {
 351    if (fd_panel) {
 352       fl_hide_form(fd_panel->panel);
 353       fl_free_form(fd_panel->panel);
 354       delete sym_menu;
 355       free(fd_panel);
 356       fd_panel = 0;
 357    }
 358 }
 359
 360
 361 extern "C" int AtClose_symbols_form(FL_FORM *, void *)
 362 {
 363   free_symbols_form();
 364   return FL_IGNORE;
 365 }
 366
 367
 368 void show_symbols_form(LyXFunc * lf)
 369 {
 370     lyxfunc = lf;
 371     if (!fd_panel) {
 372         fd_panel = create_math_panel();
 373         fl_register_raw_callback(fd_panel->panel,
 374                                  ButtonPressMask|KeyPressMask, C_peek_event);
 375         create_symbol_menues(fd_panel);
 376         fl_set_form_atclose(fd_panel->panel, AtClose_symbols_form, 0);
 377     }
 378     if (fd_panel->panel->visible) {
 379         fl_raise_form(fd_panel->panel);
 380     } else {
 381       fl_show_form(fd_panel->panel, FL_PLACE_MOUSE,
 382                    FL_FULLBORDER, _("Math Panel"));
 383     }
 384 }