src/frontends/xforms/Menubar_pimpl.C

   1 /* This file is part of
   2 * ======================================================
   3 *
   4 *           LyX, The Document Processor
   5 *
   6 *           Copyright (C) 1999 The LyX Team.
   7 *
   8 *======================================================*/
   9
  10 #ifdef __GNUG__
  11 #pragma implementation
  12 #endif
  13
  14 #include <config.h>
  15
  16 #include <algorithm>
  17 #include "support/lstrings.h"
  18 #include "support/LAssert.h"
  19 #include "debug.h"
  20 #include "LyXAction.h"
  21 #include "lyxfunc.h"
  22 #include "kbmap.h"
  23 #include "buffer.h"
  24 #include "LyXView.h"
  25 #include "MenuBackend.h"
  26 #include "Menubar_pimpl.h"
  27
  28 using std::endl;
  29 using std::vector;
  30 using std::max;
  31 using std::min;
  32
  33 typedef vector<int>::size_type size_type;
  34
  35 extern kb_keymap * toplevel_keymap;
  36 extern LyXAction lyxaction;
  37
  38 // Some constants
  39 static const int MENU_LABEL_SIZE = FL_NORMAL_SIZE;
  40 static const int mheight = 30;
  41 static const int mbheight= 22;
  42 // where to place the menubar?
  43 static const int yloc = (mheight - mbheight)/2; //air + bw;
  44 static const int mbadd = 20; // menu button add (to width)
  45 // Some space between buttons on the menubar
  46 static const int air = 2;
  47 static char const * menu_tabstop = "aa";
  48 static char const * default_tabstop = "aaaaaaaa";
  49 // We do not want to mix position values in a menu (like the index of
  50 // a submenu) with the action numbers which convey actual information.
  51 // Therefore we offset all the action values by an arbitrary large
  52 // constant.
  53 static const int action_offset = 1000;
  54
  55
  56 //Defined later, used in makeMenubar().
  57 extern "C"
  58 void C_Menubar_Pimpl_MenuCallback(FL_OBJECT * ob, long button);
  59
  60 // This is used a few times below.
  61 static inline
  62 int string_width(string const & str)
  63 {
  64         return fl_get_string_widthTAB(FL_NORMAL_STYLE, MENU_LABEL_SIZE,
  65                                       str.c_str(),
  66                                       static_cast<int>(str.length()));
  67 }
  68
  69
  70 Menubar::Pimpl::Pimpl(LyXView * view, MenuBackend const & mb)
  71         : owner_(view), menubackend_(&mb), current_group_(0)
  72 {
  73         for (MenuBackend::const_iterator menu = menubackend_->begin();
  74             menu != menubackend_->end() ; ++menu) {
  75                 if (menu->menubar()) {
  76                         FL_OBJECT * group = fl_bgn_group();
  77                         makeMenubar(*menu);
  78                         fl_end_group();
  79                         fl_hide_object(group);
  80                         lyxerr[Debug::GUI]
  81                                 << "Menubar::Pimpl::Pimpl: "
  82                                 << "creating and hiding group " << group
  83                                 << " for menubar " << menu->name() << endl;
  84                         menubarmap_[menu->name()] = group;
  85                 }
  86         }
  87 }
  88
  89
  90 Menubar::Pimpl::~Pimpl()
  91 {
  92         // Should we do something here?
  93 }
  94
  95
  96 void Menubar::Pimpl::makeMenubar(Menu const &menu)
  97 {
  98         FL_FORM * form = owner_->getForm();
  99         int moffset = 0;
 100
 101         // Create menu frame if there is non yet.
 102         FL_OBJECT * frame = fl_add_frame(FL_UP_FRAME, 0, 0,
 103                                          form->w, mheight, "");
 104         fl_set_object_resize(frame, FL_RESIZE_ALL);
 105         fl_set_object_gravity(frame, NorthWestGravity,
 106                               NorthEastGravity);
 107
 108         for (Menu::const_iterator i = menu.begin();
 109              i != menu.end(); ++i) {
 110                 FL_OBJECT * obj;
 111                 if (i->kind() != MenuItem::Submenu) {
 112                         lyxerr << "ERROR: Menubar::Pimpl::createMenubar:"
 113                                 " only submenus can appear in a menubar";
 114                         break;
 115                 }
 116                 string label = i->label();
 117                 string shortcut = "#" + i->shortcut();
 118                 int width = string_width(label);
 119                 obj = fl_add_button(FL_MENU_BUTTON,
 120                                     air + moffset, yloc,
 121                                     width + mbadd,
 122                                     mbheight,
 123                                     label.c_str());
 124                 fl_set_object_boxtype(obj, FL_FLAT_BOX);
 125                 fl_set_object_color(obj, FL_MCOL, FL_MCOL);
 126                 fl_set_object_lsize(obj, MENU_LABEL_SIZE);
 127                 fl_set_object_lstyle(obj, FL_NORMAL_STYLE);
 128                 fl_set_object_resize(obj, FL_RESIZE_ALL);
 129                 fl_set_object_gravity(obj, NorthWestGravity,
 130                                       NorthWestGravity);
 131                 moffset += obj->w + air;
 132                 fl_set_object_shortcut(obj, shortcut.c_str(), 1);
 133                 fl_set_object_callback(obj, C_Menubar_Pimpl_MenuCallback, 1);
 134
 135                 ItemInfo * iteminfo = new ItemInfo(this,
 136                                                    new MenuItem(*i), obj);
 137                 buttonlist_.push_back(iteminfo);
 138                 obj->u_vdata = iteminfo;
 139         }
 140
 141 }
 142
 143 void Menubar::Pimpl::set(string const & menu_name)
 144 {
 145         lyxerr[Debug::GUI] << "Entering Menubar::Pimpl::set "
 146                            << "for menu `" << menu_name << "'" << endl;
 147
 148         if (menu_name != current_menu_name_) {
 149                 MenubarMap::iterator mbit = menubarmap_.find(menu_name);
 150
 151                 if (mbit == menubarmap_.end()) {
 152                         lyxerr << "ERROR:set: Unknown menu `" << menu_name
 153                                << "'" << endl;
 154                         return;
 155                 }
 156
 157                 if (current_group_) {
 158                         lyxerr[Debug::GUI] << "  hiding group "
 159                                            << current_group_ << endl;
 160                         fl_hide_object(current_group_);
 161                 }
 162
 163                 lyxerr[Debug::GUI] << "  showing group "
 164                                    << mbit->second << endl;
 165                 fl_show_object(mbit->second);
 166                 current_menu_name_ = menu_name;
 167                 current_group_ = mbit->second;
 168                 lyxerr[Debug::GUI] << "Menubar::Pimpl::set: Menubar set."
 169                                    << endl;
 170         }
 171         else
 172                 lyxerr [Debug::GUI] << "Menubar::Pimpl::set: Nothing to do."
 173                                     << endl;
 174 }
 175
 176 void Menubar::Pimpl::openByName(string const & name)
 177 {
 178         if (menubackend_->getMenu(current_menu_name_).hasSubmenu(name)) {
 179                 for (ButtonList::const_iterator cit = buttonlist_.begin();
 180                      cit != buttonlist_.end(); ++cit) {
 181                         if ((*cit)->item_->submenu() == name) {
 182                                 MenuCallback((*cit)->obj_, 1);
 183                                 return;
 184                         }
 185                 }
 186         }
 187         lyxerr << "Menubar::Pimpl::openByName: menu "
 188                << name << " not found" << endl;
 189 }
 190
 191
 192 static inline
 193 string const limit_string_length(string const & str)
 194 {
 195         string::size_type const max_item_length = 45;
 196
 197         if (str.size() > max_item_length)
 198                 return str.substr(0, max_item_length - 3) + "...";
 199         else
 200                 return str;
 201 }
 202
 203
 204 static
 205 int get_new_submenu(vector<int> & smn, Window win)
 206 {
 207         static size_type max_number_of_menus = 32;
 208         if (smn.size() >= max_number_of_menus)
 209                 max_number_of_menus =
 210                     fl_setpup_maxpup(static_cast<int>(2*smn.size()));
 211         int menu = fl_newpup(win);
 212         smn.push_back(menu);
 213         return menu;
 214 }
 215
 216
 217 size_type const max_number_of_items = 25;
 218
 219 static inline
 220 string const fixlabel(string const & str)
 221 {
 222 #if FL_REVISION < 89
 223         return subst(str, '%', '?');
 224 #else
 225         return subst(str, "%", "%%");
 226 #endif
 227 }
 228
 229
 230 void add_toc2(int menu, string const & extra_label,
 231               vector<int> & smn, Window win,
 232               vector<Buffer::TocItem> const & toc_list,
 233               size_type from, size_type to, int depth)
 234 {
 235         int shortcut_count = 0;
 236         if (to - from <= max_number_of_items) {
 237                 for (size_type i = from; i < to; ++i) {
 238                         int const action = lyxaction.
 239                                 getPseudoAction(LFUN_GOTO_PARAGRAPH,
 240                                                 tostr(toc_list[i].par->id()));
 241                         string label(4 * max(0, toc_list[i].depth - depth),' ');
 242                         label += fixlabel(toc_list[i].str);
 243                         label = limit_string_length(label);
 244                         label += "%x" + tostr(action + action_offset);
 245                         if (i == to - 1 && depth == 0)
 246                                 label += extra_label;
 247                         if (toc_list[i].depth == depth
 248                             && ++shortcut_count <= 9) {
 249                                 label += "%h";
 250                                 fl_addtopup(menu, label.c_str(),
 251                                             tostr(shortcut_count).c_str());
 252                         } else
 253                                 fl_addtopup(menu, label.c_str());
 254                 }
 255         } else {
 256                 size_type pos = from;
 257                 size_type count = 0;
 258                 while (pos < to) {
 259                         ++count;
 260                         if (count > max_number_of_items) {
 261                                 int menu2 = get_new_submenu(smn, win);
 262                                 add_toc2(menu2, extra_label, smn, win,
 263                                          toc_list, pos, to, depth);
 264                                 string label = _("More");
 265                                 label += "...%m";
 266                                 if (depth == 0)
 267                                         label += extra_label;
 268                                 fl_addtopup(menu, label.c_str(), menu2);
 269                                 break;
 270                         }
 271                         size_type new_pos = pos+1;
 272                         while (new_pos < to &&
 273                                toc_list[new_pos].depth > depth)
 274                                 ++new_pos;
 275
 276                         int const action = lyxaction.
 277                                 getPseudoAction(LFUN_GOTO_PARAGRAPH,
 278                                                 tostr(toc_list[pos].par->id()));
 279                         string label(4 * max(0, toc_list[pos].depth - depth), ' ');
 280                         label += fixlabel(toc_list[pos].str);
 281                         label = limit_string_length(label);
 282                         if (new_pos == to && depth == 0)
 283                                 label += extra_label;
 284                         string shortcut;
 285                         if (toc_list[pos].depth == depth &&
 286                             ++shortcut_count <= 9)
 287                                 shortcut = tostr(shortcut_count);
 288
 289                         if (new_pos == pos + 1) {
 290                                 label += "%x" + tostr(action + action_offset);
 291                                 if (!shortcut.empty()) {
 292                                         label += "%h";
 293                                         fl_addtopup(menu, label.c_str(),
 294                                                     shortcut.c_str());
 295                                 } else
 296                                         fl_addtopup(menu, label.c_str());
 297                         } else {
 298                                 int menu2 = get_new_submenu(smn, win);
 299                                 add_toc2(menu2, extra_label, smn, win,
 300                                          toc_list, pos, new_pos, depth+1);
 301                                 label += "%m";
 302                                 if (!shortcut.empty()) {
 303                                         label += "%h";
 304                                         fl_addtopup(menu, label.c_str(), menu2,
 305                                                     shortcut.c_str());
 306                                 } else
 307                                         fl_addtopup(menu, label.c_str(), menu2);
 308                         }
 309                         pos = new_pos;
 310                 }
 311         }
 312 }
 313
 314
 315 void Menubar::Pimpl::add_toc(int menu, string const & extra_label,
 316                              vector<int> & smn, Window win)
 317 {
 318         //xgettext:no-c-format
 319         static char const * MenuNames[3] = { N_("List of Figures%m"),
 320         //xgettext:no-c-format
 321                                              N_("List of Tables%m"),
 322         //xgettext:no-c-format
 323                                              N_("List of Algorithms%m") };
 324
 325         vector<vector<Buffer::TocItem> > toc_list =
 326                 owner_->buffer()->getTocList();
 327
 328         // Handle LOF/LOT/LOA
 329         int max_nonempty = 0;
 330         for (int i = 1; i <= 3; ++i)
 331                 if (!toc_list[i].empty())
 332                         max_nonempty = i;
 333
 334         for (int j = 1; j <= 3; ++j)
 335                 if (!toc_list[j].empty()) {
 336                         int menu2 = get_new_submenu(smn, win);
 337                         for (size_type i = 0; i < toc_list[j].size(); ++i) {
 338                                 if (i > max_number_of_items) {
 339                                         fl_addtopup(menu2, ". . .%d");
 340                                         break;
 341                                 }
 342                                 int const action = lyxaction.
 343                                         getPseudoAction(LFUN_GOTO_PARAGRAPH,
 344                                                         tostr(toc_list[j][i].par->id()));
 345                                 string label = fixlabel(toc_list[j][i].str);
 346                                 label = limit_string_length(label);
 347                                 label += "%x" + tostr(action + action_offset);
 348                                 fl_addtopup(menu2, label.c_str());
 349                         }
 350                         if (j == max_nonempty) {
 351                                 string label = _(MenuNames[j - 1]);
 352                                 label += "%l";
 353                                 fl_addtopup(menu, label.c_str(), menu2);
 354                         } else
 355                                 fl_addtopup(menu, _(MenuNames[j - 1]), menu2);
 356                 }
 357
 358         // Handle normal TOC
 359         if (max_nonempty == 0 && toc_list[0].empty()) {
 360                 fl_addtopup(menu, (_("No Table of Contents%i")
 361                                    + extra_label).c_str());
 362                 return;
 363         }
 364
 365         add_toc2(menu, extra_label, smn, win,
 366                  toc_list[0], 0, toc_list[0].size(), 0);
 367
 368 }
 369
 370 void add_references2(int menu, vector<int> & smn, Window win,
 371                      vector<string> const & label_list, string const & type)
 372 {
 373         size_type const max_number_of_items = 25;
 374         size_type const max_number_of_items2 = 20;
 375         string::size_type const max_item_length = 40;
 376         string::size_type const max_item_length2 = 20;
 377
 378         if (label_list.size() <= max_number_of_items)
 379                 for (size_type i = 0; i < label_list.size(); ++i) {
 380                         int const action = (type == "goto")
 381                                 ? lyxaction.getPseudoAction(LFUN_REF_GOTO,
 382                                                             label_list[i])
 383                                 : lyxaction.getPseudoAction(LFUN_REF_INSERT,
 384                                                             type + "|++||++|"
 385                                                             + label_list[i]);
 386                         string label = label_list[i];
 387                         if (label.size() > max_item_length)
 388                                 label = label.substr(0, max_item_length-1) + "$";
 389                         label += "%x" + tostr(action + action_offset);
 390                         fl_addtopup(menu, label.c_str());
 391                 }
 392         else {
 393                 size_type count = 0;
 394                 for (size_type i = 0; i < label_list.size();
 395                      i += max_number_of_items2) {
 396                         ++count;
 397                         if (count > max_number_of_items) {
 398                                 fl_addtopup(menu, ". . .%d");
 399                                 break;
 400                         }
 401                         size_type j = min(label_list.size(),
 402                                           i+max_number_of_items2);
 403
 404                         string label;
 405                         label += (label_list[i].size() > max_item_length2)
 406                                 ? label_list[i].substr(0, max_item_length2-1) + "$"
 407                                 : label_list[i];
 408                         label += "..";
 409                         label += (label_list[j-1].size() > max_item_length2)
 410                                 ? label_list[j-1].substr(0, max_item_length2-1) + "$"
 411                                 : label += label_list[j-1];
 412
 413                         int menu2 = get_new_submenu(smn, win);
 414                         for (size_type k = i;  k < j; ++k) {
 415                                 int const action = (type == "goto")
 416                                         ? lyxaction.getPseudoAction(LFUN_REF_GOTO,
 417                                                                     label_list[k])
 418                                         : lyxaction.getPseudoAction(LFUN_REF_INSERT,
 419                                                                     type + "|++||++|"
 420                                                                     + label_list[k]);
 421                                 string label2 = label_list[k];
 422                                 if (label2.size() > max_item_length)
 423                                         label2 = label2.substr(0, max_item_length-1) + "$";
 424                                 label2 += "%x" + tostr(action + action_offset);
 425                                 fl_addtopup(menu2, label2.c_str());
 426                         }
 427                         label += "%m";
 428                         fl_addtopup(menu, label.c_str(), menu2);
 429                 }
 430         }
 431 }
 432
 433
 434 void Menubar::Pimpl::add_references(int menu, string const & extra_label,
 435                                     vector<int> & smn, Window win)
 436 {
 437         //xgettext:no-c-format
 438         static char const * MenuNames[6] = { N_("Insert Reference%m"),
 439         //xgettext:no-c-format
 440                                              N_("Insert Page Number%m"),
 441         //xgettext:no-c-format
 442                                              N_("Insert vref%m"),
 443         //xgettext:no-c-format
 444                                              N_("Insert vpageref%m"),
 445         //xgettext:no-c-format
 446                                              N_("Insert Pretty Ref%m"),
 447         //xgettext:no-c-format
 448                                              N_("Goto Reference%m") };
 449
 450         int const EMPTY = 1;
 451         int const SGML = 2;
 452         int const READONLY = 4;
 453
 454         static int MenuFlags[6] = {
 455                 EMPTY | READONLY,
 456                 EMPTY | READONLY,
 457                 EMPTY | READONLY | SGML,
 458                 EMPTY | READONLY | SGML,
 459                 EMPTY | READONLY | SGML,
 460                 EMPTY };
 461
 462         static string const MenuTypes[6] = {
 463                 "ref", "pageref", "vref", "vpageref", "prettyref", "goto" };
 464
 465         vector<string> label_list = owner_->buffer()->getLabelList();
 466
 467         int flag = 0;
 468         if (label_list.empty())
 469                 flag += EMPTY;
 470         if (owner_->buffer()->isSGML())
 471                 flag += SGML;
 472         if (owner_->buffer()->isReadonly())
 473                 flag += READONLY;
 474
 475         int max_nonempty = -1;
 476         for (int i = 0; i < 6; ++i)
 477                 if ((MenuFlags[i] & flag) == 0)
 478                         max_nonempty = i;
 479
 480         for (int i = 0; i < 6; ++i) {
 481                 if ((MenuFlags[i] & flag) == 0) {
 482                         string label = _(MenuNames[i]);
 483                         if (i == max_nonempty)
 484                                 label += extra_label;
 485                         int menu2 = get_new_submenu(smn, win);
 486                         add_references2(menu2, smn, win, label_list,
 487                                         MenuTypes[i]);
 488                         fl_addtopup(menu, label.c_str(), menu2);
 489                 }
 490         }
 491 }
 492
 493
 494 int Menubar::Pimpl::create_submenu(Window win, LyXView * view,
 495                                    string const & menu_name,
 496                                    vector<int> & smn)
 497 {
 498         if (!menubackend_->hasMenu(menu_name)){
 499                 lyxerr << "ERROR:create_submenu: Unknown menu `"
 500                        << menu_name << "'" << endl;
 501                 return -1;
 502         }
 503         Menu md = Menu();
 504         menubackend_->getMenu(menu_name).expand(md, owner_->buffer());
 505
 506         int menu = get_new_submenu(smn, win);
 507         fl_setpup_softedge(menu, true);
 508         fl_setpup_bw(menu, -1);
 509         lyxerr[Debug::GUI] << "Adding menu " << menu
 510                            << " in deletion list" << endl;
 511
 512         // Compute the size of the largest label (because xforms is
 513         // not able to support shortcuts correctly...)
 514         int max_width = 0;
 515         string widest_label;
 516         Menu::const_iterator end = md.end();
 517         for (Menu::const_iterator i = md.begin(); i != end; ++i) {
 518                 MenuItem const & item = (*i);
 519                 if (item.kind() == MenuItem::Command) {
 520                         string label = item.label() + '\t';
 521                         int width = string_width(label);
 522                         if (width > max_width) {
 523                                 max_width = width;
 524                                 widest_label = label;
 525                         }
 526                 }
 527         }
 528         lyxerr[Debug::GUI] << "max_width=" << max_width
 529                            << ", widest_label=`" << widest_label
 530                            << "'" << endl;
 531
 532         // Compute where to put separators
 533         vector<string> extra_labels(md.size());
 534         vector<string>::iterator it = extra_labels.begin();
 535         vector<string>::iterator last = it;
 536         for (Menu::const_iterator i = md.begin(); i != end; ++i, ++it)
 537                 if (i->kind() == MenuItem::Separator)
 538                         *last = "%l";
 539                 else if (!i->optional() ||
 540                          !(view->getLyXFunc()->getStatus(i->action()) & LyXFunc::Disabled))
 541                         last = it;
 542
 543         it = extra_labels.begin();
 544         for (Menu::const_iterator i = md.begin(); i != end; ++i, ++it) {
 545                 MenuItem const & item = (*i);
 546                 string & extra_label = *it;
 547
 548                 switch (item.kind()) {
 549                 case MenuItem::Command: {
 550                         LyXFunc::func_status flag =
 551                                 view->getLyXFunc()->getStatus(item.action());
 552
 553                         // handle optional entries.
 554                         if (item.optional() && (flag & LyXFunc::Disabled)) {
 555                                 lyxerr[Debug::GUI]
 556                                         << "Skipping optional item "
 557                                         << item.label() << endl;
 558                                 break;
 559                         }
 560
 561                         // Get the keys bound to this action, but keep only the
 562                         // first one later
 563                         string const accel = toplevel_keymap->findbinding(item.action());
 564                         // Build the menu label from all the info
 565                         string label = item.label();
 566
 567                         if (!accel.empty()) {
 568                                 // Try to be clever and add  just enough
 569                                 // tabs to align shortcuts.
 570                                 do
 571                                         label += '\t';
 572                                 while (string_width(label) < max_width + 5);
 573                                 label += accel.substr(1,accel.find(']') - 1);
 574                         }
 575                         label += "%x" + tostr(item.action() + action_offset)
 576                                 + extra_label;
 577
 578                         // Modify the entry using the function status
 579                         string pupmode;
 580                         if (flag & (LyXFunc::Disabled | LyXFunc::Unknown))
 581                                 pupmode += "%i";
 582                         if (flag & LyXFunc::ToggleOn)
 583                                 pupmode += "%B";
 584                         if (flag & LyXFunc::ToggleOff)
 585                                 pupmode += "%b";
 586                         label += pupmode;
 587
 588                         // Finally the menu shortcut
 589                         string shortcut = item.shortcut();
 590
 591                         if (!shortcut.empty()) {
 592                                 shortcut += lowercase(shortcut[0]);
 593                                 label += "%h";
 594                                 fl_addtopup(menu, label.c_str(),
 595                                             shortcut.c_str());
 596                         } else
 597                                 fl_addtopup(menu, label.c_str());
 598
 599                         lyxerr[Debug::GUI] << "Command: \""
 600                                            << lyxaction.getActionName(item.action())
 601                                            << "\", binding \"" << accel
 602                                            << "\", shortcut \"" << shortcut
 603                                            << "\"" << endl;
 604                         break;
 605                 }
 606
 607                 case MenuItem::Submenu: {
 608                         int submenu = create_submenu(win, view,
 609                                                      item.submenu(), smn);
 610                         if (submenu == -1)
 611                                 return -1;
 612                         string label = item.label();
 613                         label += extra_label + "%m";
 614                         string shortcut = item.shortcut();
 615                         if (!shortcut.empty()) {
 616                                 shortcut += lowercase(shortcut[0]);
 617                                 label += "%h";
 618                                 fl_addtopup(menu, label.c_str(),
 619                                             submenu, shortcut.c_str());
 620                         }
 621                         else {
 622                                 fl_addtopup(menu, label.c_str(), submenu);
 623                         }
 624                         break;
 625                 }
 626
 627                 case MenuItem::Separator:
 628                         // already done, and if it was the first one,
 629                         // we just ignore it.
 630                         break;
 631
 632                 case MenuItem::Toc:
 633                         add_toc(menu, extra_label, smn, win);
 634                         break;
 635
 636                 case MenuItem::References:
 637                         add_references(menu, extra_label, smn, win);
 638                         break;
 639
 640                 case MenuItem::Documents:
 641                 case MenuItem::Lastfiles:
 642                 case MenuItem::ViewFormats:
 643                 case MenuItem::UpdateFormats:
 644                 case MenuItem::ExportFormats:
 645                 case MenuItem::ImportFormats:
 646                         lyxerr << "Menubar::Pimpl::create_submenu: "
 647                                 "this should not happen" << endl;
 648                         break;
 649
 650                 }
 651         }
 652         return menu;
 653 }
 654
 655
 656 extern "C"
 657 void C_Menubar_Pimpl_MenuCallback(FL_OBJECT * ob, long button)
 658 {
 659         Menubar::Pimpl::MenuCallback(ob, button);
 660 }
 661
 662
 663 void Menubar::Pimpl::MenuCallback(FL_OBJECT * ob, long button)
 664 {
 665         ItemInfo * iteminfo = static_cast<ItemInfo *>(ob->u_vdata);
 666 //      lyxerr << "MenuCallback: ItemInfo address=" << iteminfo
 667 //             << "Val=(pimpl_=" << iteminfo->pimpl_
 668 //             << ", item_=" << iteminfo->item_
 669 //             << ", obj_=" << iteminfo->obj_ << ")" <<endl;
 670
 671         LyXView * view = iteminfo->pimpl_->owner_;
 672         MenuItem const * item = iteminfo->item_;
 673
 674         if (button == 1) {
 675                 // set the pseudo menu-button
 676                 fl_set_object_boxtype(ob, FL_DOWN_BOX);
 677                 fl_set_button(ob, 0);
 678                 fl_redraw_object(ob);
 679         }
 680
 681         // Paranoia check
 682         Assert(item->kind() == MenuItem::Submenu);
 683
 684         // set tabstop length
 685         fl_set_tabstop(menu_tabstop);
 686         vector<int> submenus;
 687         int menu = iteminfo->pimpl_->
 688                 create_submenu(FL_ObjWin(ob), view,
 689                                item->submenu(), submenus);
 690         if (menu != -1) {
 691                 // place popup
 692                 fl_setpup_position(view->getForm()->x + ob->x,
 693                                    view->getForm()->y + ob->y + ob->h + 10);
 694                 int choice = fl_dopup(menu);
 695
 696                 if (button == 1) {
 697                                 // set the pseudo menu-button back
 698                         fl_set_object_boxtype(ob, FL_FLAT_BOX);
 699                         fl_redraw_object(ob);
 700                 }
 701
 702                 // If the action value is too low, then it is not a
 703                 // valid action, but something else.
 704                 if (choice >= action_offset + 1) {
 705                         view->getLyXFunc()->Dispatch(choice - action_offset);
 706                 }
 707                 else {
 708                         lyxerr[Debug::GUI]
 709                                 << "MenuCallback: ignoring bogus action "
 710                                 << choice << endl;
 711                 }
 712         }
 713         else
 714                 lyxerr << "Error in MenuCallback" << endl;
 715
 716         std::for_each(submenus.begin(), submenus.end(), fl_freepup);
 717         // restore tabstop length
 718         fl_set_tabstop(default_tabstop);
 719
 720 }