src/gtk/menu.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        menu.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11 #pragma implementation "menu.h"
  12 #pragma implementation "menuitem.h"
  13 #endif
  14
  15 #include "wx/log.h"
  16 #include "wx/intl.h"
  17 #include "wx/app.h"
  18 #include "wx/menu.h"
  19
  20 #if wxUSE_ACCEL
  21     #include "wx/accel.h"
  22 #endif // wxUSE_ACCEL
  23
  24 #include <gdk/gdk.h>
  25 #include <gtk/gtk.h>
  26
  27 //-----------------------------------------------------------------------------
  28 // idle system
  29 //-----------------------------------------------------------------------------
  30
  31 extern void wxapp_install_idle_handler();
  32 extern bool g_isIdle;
  33
  34 #if (GTK_MINOR_VERSION > 0) && wxUSE_ACCEL
  35 static wxString GetHotKey( const wxMenuItem& item );
  36 #endif
  37
  38 //-----------------------------------------------------------------------------
  39 // wxMenuBar
  40 //-----------------------------------------------------------------------------
  41
  42 IMPLEMENT_DYNAMIC_CLASS(wxMenuBar,wxWindow)
  43
  44 wxMenuBar::wxMenuBar( long style )
  45 {
  46     /* the parent window is known after wxFrame::SetMenu() */
  47     m_needParent = FALSE;
  48     m_style = style;
  49     m_invokingWindow = (wxWindow*) NULL;
  50
  51     if (!PreCreation( (wxWindow*) NULL, wxDefaultPosition, wxDefaultSize ) ||
  52         !CreateBase( (wxWindow*) NULL, -1, wxDefaultPosition, wxDefaultSize, style, wxDefaultValidator, wxT("menubar") ))
  53     {
  54         wxFAIL_MSG( wxT("wxMenuBar creation failed") );
  55         return;
  56     }
  57
  58     m_menus.DeleteContents( TRUE );
  59
  60     /* GTK 1.2.0 doesn't have gtk_item_factory_get_item(), but GTK 1.2.1 has. */
  61 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
  62     m_accel = gtk_accel_group_new();
  63     m_factory = gtk_item_factory_new( GTK_TYPE_MENU_BAR, "<main>", m_accel );
  64     m_menubar = gtk_item_factory_get_widget( m_factory, "<main>" );
  65 #else
  66     m_menubar = gtk_menu_bar_new();
  67 #endif
  68
  69     if (style & wxMB_DOCKABLE)
  70     {
  71         m_widget = gtk_handle_box_new();
  72         gtk_container_add( GTK_CONTAINER(m_widget), GTK_WIDGET(m_menubar) );
  73         gtk_widget_show( GTK_WIDGET(m_menubar) );
  74     }
  75     else
  76     {
  77         m_widget = GTK_WIDGET(m_menubar);
  78     }
  79
  80     PostCreation();
  81
  82     ApplyWidgetStyle();
  83 }
  84
  85 wxMenuBar::wxMenuBar()
  86 {
  87     /* the parent window is known after wxFrame::SetMenu() */
  88     m_needParent = FALSE;
  89     m_style = 0;
  90     m_invokingWindow = (wxWindow*) NULL;
  91
  92     if (!PreCreation( (wxWindow*) NULL, wxDefaultPosition, wxDefaultSize ) ||
  93         !CreateBase( (wxWindow*) NULL, -1, wxDefaultPosition, wxDefaultSize, 0, wxDefaultValidator, wxT("menubar") ))
  94     {
  95         wxFAIL_MSG( wxT("wxMenuBar creation failed") );
  96         return;
  97     }
  98
  99     m_menus.DeleteContents( TRUE );
 100
 101     /* GTK 1.2.0 doesn't have gtk_item_factory_get_item(), but GTK 1.2.1 has. */
 102 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
 103     m_accel = gtk_accel_group_new();
 104     m_factory = gtk_item_factory_new( GTK_TYPE_MENU_BAR, "<main>", m_accel );
 105     m_menubar = gtk_item_factory_get_widget( m_factory, "<main>" );
 106 #else
 107     m_menubar = gtk_menu_bar_new();
 108 #endif
 109
 110     m_widget = GTK_WIDGET(m_menubar);
 111
 112     PostCreation();
 113
 114     ApplyWidgetStyle();
 115 }
 116
 117 wxMenuBar::~wxMenuBar()
 118 {
 119 //    gtk_object_unref( GTK_OBJECT(m_factory) );  why not ?
 120 }
 121
 122 static void wxMenubarUnsetInvokingWindow( wxMenu *menu, wxWindow *win )
 123 {
 124     menu->SetInvokingWindow( (wxWindow*) NULL );
 125
 126 #if (GTK_MINOR_VERSION > 0)
 127     wxWindow *top_frame = win;
 128     while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
 129         top_frame = top_frame->GetParent();
 130
 131     /* support for native hot keys  */
 132     gtk_accel_group_detach( menu->m_accel, GTK_OBJECT(top_frame->m_widget) );
 133 #endif
 134
 135     wxMenuItemList::Node *node = menu->GetMenuItems().GetFirst();
 136     while (node)
 137     {
 138         wxMenuItem *menuitem = node->GetData();
 139         if (menuitem->IsSubMenu())
 140             wxMenubarUnsetInvokingWindow( menuitem->GetSubMenu(), win );
 141         node = node->GetNext();
 142     }
 143 }
 144
 145 static void wxMenubarSetInvokingWindow( wxMenu *menu, wxWindow *win )
 146 {
 147     menu->SetInvokingWindow( win );
 148
 149 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
 150     wxWindow *top_frame = win;
 151     while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
 152         top_frame = top_frame->GetParent();
 153
 154     /* support for native hot keys  */
 155     GtkObject *obj = GTK_OBJECT(top_frame->m_widget);
 156     if ( !g_slist_find( menu->m_accel->attach_objects, obj ) )
 157         gtk_accel_group_attach( menu->m_accel, obj );
 158 #endif
 159
 160     wxMenuItemList::Node *node = menu->GetMenuItems().GetFirst();
 161     while (node)
 162     {
 163         wxMenuItem *menuitem = node->GetData();
 164         if (menuitem->IsSubMenu())
 165             wxMenubarSetInvokingWindow( menuitem->GetSubMenu(), win );
 166         node = node->GetNext();
 167     }
 168 }
 169
 170 void wxMenuBar::SetInvokingWindow( wxWindow *win )
 171 {
 172     m_invokingWindow = win;
 173 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
 174     wxWindow *top_frame = win;
 175     while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
 176         top_frame = top_frame->GetParent();
 177
 178     /* support for native key accelerators indicated by underscroes */
 179     GtkObject *obj = GTK_OBJECT(top_frame->m_widget);
 180     if ( !g_slist_find( m_accel->attach_objects, obj ) )
 181         gtk_accel_group_attach( m_accel, obj );
 182 #endif
 183
 184     wxMenuList::Node *node = m_menus.GetFirst();
 185     while (node)
 186     {
 187         wxMenu *menu = node->GetData();
 188         wxMenubarSetInvokingWindow( menu, win );
 189         node = node->GetNext();
 190     }
 191 }
 192
 193 void wxMenuBar::UnsetInvokingWindow( wxWindow *win )
 194 {
 195     m_invokingWindow = (wxWindow*) NULL;
 196 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
 197     wxWindow *top_frame = win;
 198     while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
 199         top_frame = top_frame->GetParent();
 200
 201     /* support for native key accelerators indicated by underscroes */
 202     gtk_accel_group_detach( m_accel, GTK_OBJECT(top_frame->m_widget) );
 203 #endif
 204
 205     wxMenuList::Node *node = m_menus.GetFirst();
 206     while (node)
 207     {
 208         wxMenu *menu = node->GetData();
 209         wxMenubarUnsetInvokingWindow( menu, win );
 210         node = node->GetNext();
 211     }
 212 }
 213
 214 bool wxMenuBar::Append( wxMenu *menu, const wxString &title )
 215 {
 216     if ( !wxMenuBarBase::Append( menu, title ) )
 217         return FALSE;
 218
 219     return GtkAppend(menu, title);
 220 }
 221
 222 bool wxMenuBar::GtkAppend(wxMenu *menu, const wxString& title)
 223 {
 224     const wxChar *pc;
 225
 226     /* GTK 1.2 wants to have "_" instead of "&" for accelerators */
 227     wxString str;
 228     for ( pc = title; *pc != wxT('\0'); pc++ )
 229     {
 230         if (*pc == wxT('&'))
 231         {
 232 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
 233             str << wxT('_');
 234         }
 235         else if (*pc == wxT('/'))
 236         {
 237             str << wxT('\\');
 238 #endif
 239         }
 240         else
 241         {
 242 #if __WXGTK12__
 243             if ( *pc == wxT('_') )
 244             {
 245                 // underscores must be doubled to prevent them from being
 246                 // interpreted as accelerator character prefix by GTK
 247                 str << *pc;
 248             }
 249 #endif // GTK+ 1.2
 250
 251             str << *pc;
 252         }
 253     }
 254
 255     /* this doesn't have much effect right now */
 256     menu->SetTitle( str );
 257
 258     /* GTK 1.2.0 doesn't have gtk_item_factory_get_item(), but GTK 1.2.1 has. */
 259 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
 260
 261     /* local buffer in multibyte form */
 262     wxString buf;
 263     buf << wxT('/') << str.c_str();
 264
 265     char *cbuf = new char[buf.Length()+1];
 266     strcpy(cbuf, buf.mbc_str());
 267
 268     GtkItemFactoryEntry entry;
 269     entry.path = (gchar *)cbuf;  // const_cast
 270     entry.accelerator = (gchar*) NULL;
 271     entry.callback = (GtkItemFactoryCallback) NULL;
 272     entry.callback_action = 0;
 273     entry.item_type = "<Branch>";
 274
 275     gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
 276     /* in order to get the pointer to the item we need the item text _without_ underscores */
 277     wxString tmp = wxT("<main>/");
 278     for ( pc = str; *pc != wxT('\0'); pc++ )
 279     {
 280        // contrary to the common sense, we must throw out _all_ underscores,
 281        // (i.e. "Hello__World" => "HelloWorld" and not "Hello_World" as we
 282        // might naively think). IMHO it's a bug in GTK+ (VZ)
 283        while (*pc == wxT('_'))
 284            pc++;
 285        tmp << *pc;
 286     }
 287     menu->m_owner = gtk_item_factory_get_item( m_factory, tmp.mb_str() );
 288     gtk_menu_item_set_submenu( GTK_MENU_ITEM(menu->m_owner), menu->m_menu );
 289     delete [] cbuf;
 290 #else
 291
 292     menu->m_owner = gtk_menu_item_new_with_label( str.mb_str() );
 293     gtk_widget_show( menu->m_owner );
 294     gtk_menu_item_set_submenu( GTK_MENU_ITEM(menu->m_owner), menu->m_menu );
 295
 296     gtk_menu_bar_append( GTK_MENU_BAR(m_menubar), menu->m_owner );
 297
 298 #endif
 299
 300     // m_invokingWindow is set after wxFrame::SetMenuBar(). This call enables
 301     // adding menu later on.
 302     if (m_invokingWindow)
 303         wxMenubarSetInvokingWindow( menu, m_invokingWindow );
 304
 305     return TRUE;
 306 }
 307
 308 bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title)
 309 {
 310     if ( !wxMenuBarBase::Insert(pos, menu, title) )
 311         return FALSE;
 312
 313 #if __WXGTK12__
 314     // GTK+ doesn't have a function to insert a menu using GtkItemFactory (as
 315     // of version 1.2.6), so we first append the item and then change its
 316     // index
 317     if ( !GtkAppend(menu, title) )
 318         return FALSE;
 319
 320     GtkMenuShell *menu_shell = GTK_MENU_SHELL(m_factory->widget);
 321     gpointer data = g_list_last(menu_shell->children)->data;
 322     menu_shell->children = g_list_remove(menu_shell->children, data);
 323     menu_shell->children = g_list_insert(menu_shell->children, data, pos);
 324
 325     return TRUE;
 326 #else  // GTK < 1.2
 327     // this should be easy to do with GTK 1.0 - can use standard functions for
 328     // this and don't need any hacks like above, but as I don't have GTK 1.0
 329     // any more I can't do it
 330     wxFAIL_MSG( wxT("TODO") );
 331
 332     return FALSE;
 333 #endif // GTK 1.2/1.0
 334 }
 335
 336 wxMenu *wxMenuBar::Replace(size_t pos, wxMenu *menu, const wxString& title)
 337 {
 338     if ( !wxMenuBarBase::Replace(pos, menu, title) )
 339         return (wxMenu*) NULL;
 340
 341     // remove the old item and insert a new one
 342     wxMenu *menuOld = Remove(pos);
 343     if ( menuOld && !Insert(pos, menu, title) )
 344     {
 345         return (wxMenu*) NULL;
 346     }
 347
 348     // either Insert() succeeded or Remove() failed and menuOld is NULL
 349     return menuOld;
 350 }
 351
 352 wxMenu *wxMenuBar::Remove(size_t pos)
 353 {
 354     wxMenu *menu = wxMenuBarBase::Remove(pos);
 355     if ( !menu )
 356         return (wxMenu*) NULL;
 357
 358 /*
 359     GtkMenuShell *menu_shell = GTK_MENU_SHELL(m_factory->widget);
 360
 361     printf( "factory entries before %d\n", (int)g_slist_length(m_factory->items) );
 362     printf( "menu shell entries before %d\n", (int)g_list_length( menu_shell->children ) );
 363 */
 364
 365     // unparent calls unref() and that would delete the widget so we raise
 366     // the ref count to 2 artificially before invoking unparent.
 367     gtk_widget_ref( menu->m_menu );
 368     gtk_widget_unparent( menu->m_menu );
 369
 370     gtk_widget_destroy( menu->m_owner );
 371
 372 /*
 373     printf( "factory entries after %d\n", (int)g_slist_length(m_factory->items) );
 374     printf( "menu shell entries after %d\n", (int)g_list_length( menu_shell->children ) );
 375 */
 376
 377     return menu;
 378 }
 379
 380 static int FindMenuItemRecursive( const wxMenu *menu, const wxString &menuString, const wxString &itemString )
 381 {
 382     if (menu->GetTitle() == menuString)
 383     {
 384         int res = menu->FindItem( itemString );
 385         if (res != wxNOT_FOUND)
 386             return res;
 387     }
 388
 389     wxMenuItemList::Node *node = menu->GetMenuItems().GetFirst();
 390     while (node)
 391     {
 392         wxMenuItem *item = node->GetData();
 393         if (item->IsSubMenu())
 394             return FindMenuItemRecursive(item->GetSubMenu(), menuString, itemString);
 395
 396         node = node->GetNext();
 397     }
 398
 399     return wxNOT_FOUND;
 400 }
 401
 402 int wxMenuBar::FindMenuItem( const wxString &menuString, const wxString &itemString ) const
 403 {
 404     wxMenuList::Node *node = m_menus.GetFirst();
 405     while (node)
 406     {
 407         wxMenu *menu = node->GetData();
 408         int res = FindMenuItemRecursive( menu, menuString, itemString);
 409         if (res != -1)
 410             return res;
 411         node = node->GetNext();
 412     }
 413
 414     return wxNOT_FOUND;
 415 }
 416
 417 // Find a wxMenuItem using its id. Recurses down into sub-menus
 418 static wxMenuItem* FindMenuItemByIdRecursive(const wxMenu* menu, int id)
 419 {
 420     wxMenuItem* result = menu->FindChildItem(id);
 421
 422     wxMenuItemList::Node *node = menu->GetMenuItems().GetFirst();
 423     while ( node && result == NULL )
 424     {
 425         wxMenuItem *item = node->GetData();
 426         if (item->IsSubMenu())
 427         {
 428             result = FindMenuItemByIdRecursive( item->GetSubMenu(), id );
 429         }
 430         node = node->GetNext();
 431     }
 432
 433     return result;
 434 }
 435
 436 wxMenuItem* wxMenuBar::FindItem( int id, wxMenu **menuForItem ) const
 437 {
 438     wxMenuItem* result = 0;
 439     wxMenuList::Node *node = m_menus.GetFirst();
 440     while (node && result == 0)
 441     {
 442         wxMenu *menu = node->GetData();
 443         result = FindMenuItemByIdRecursive( menu, id );
 444         node = node->GetNext();
 445     }
 446
 447     if ( menuForItem )
 448     {
 449         *menuForItem = result ? result->GetMenu() : (wxMenu *)NULL;
 450     }
 451
 452     return result;
 453 }
 454
 455 void wxMenuBar::EnableTop( size_t pos, bool flag )
 456 {
 457     wxMenuList::Node *node = m_menus.Item( pos );
 458
 459     wxCHECK_RET( node, wxT("menu not found") );
 460
 461     wxMenu* menu = node->GetData();
 462
 463     if (menu->m_owner)
 464         gtk_widget_set_sensitive( menu->m_owner, flag );
 465 }
 466
 467 wxString wxMenuBar::GetLabelTop( size_t pos ) const
 468 {
 469     wxMenuList::Node *node = m_menus.Item( pos );
 470
 471     wxCHECK_MSG( node, wxT("invalid"), wxT("menu not found") );
 472
 473     wxMenu* menu = node->GetData();
 474
 475     return menu->GetTitle();
 476 }
 477
 478 void wxMenuBar::SetLabelTop( size_t pos, const wxString& label )
 479 {
 480     wxMenuList::Node *node = m_menus.Item( pos );
 481
 482     wxCHECK_RET( node, wxT("menu not found") );
 483
 484     wxMenu* menu = node->GetData();
 485
 486     menu->SetTitle( label );
 487 }
 488
 489 //-----------------------------------------------------------------------------
 490 // "activate"
 491 //-----------------------------------------------------------------------------
 492
 493 static void gtk_menu_clicked_callback( GtkWidget *widget, wxMenu *menu )
 494 {
 495     if (g_isIdle) wxapp_install_idle_handler();
 496
 497     int id = menu->FindMenuIdByMenuItem(widget);
 498
 499     /* should find it for normal (not popup) menu */
 500     wxASSERT( (id != -1) || (menu->GetInvokingWindow() != NULL) );
 501
 502     if (!menu->IsEnabled(id))
 503         return;
 504
 505     wxMenuItem* item = menu->FindChildItem( id );
 506     wxCHECK_RET( item, wxT("error in menu item callback") );
 507
 508     if (item->IsCheckable())
 509     {
 510         bool isReallyChecked = item->IsChecked();
 511         if ( item->wxMenuItemBase::IsChecked() == isReallyChecked )
 512         {
 513             /* the menu item has been checked by calling wxMenuItem->Check() */
 514             return;
 515         }
 516         else
 517         {
 518             /* the user pressed on the menu item -> report and make consistent
 519              * again */
 520             item->wxMenuItemBase::Check(isReallyChecked);
 521         }
 522     }
 523
 524     wxCommandEvent event( wxEVT_COMMAND_MENU_SELECTED, id );
 525     event.SetEventObject( menu );
 526     event.SetInt(id );
 527
 528 #if wxUSE_MENU_CALLBACK
 529     if (menu->GetCallback())
 530     {
 531         (void) (*(menu->GetCallback())) (*menu, event);
 532         return;
 533     }
 534 #endif // wxUSE_MENU_CALLBACK
 535
 536     if (menu->GetEventHandler()->ProcessEvent(event))
 537         return;
 538
 539     wxWindow *win = menu->GetInvokingWindow();
 540     if (win)
 541         win->GetEventHandler()->ProcessEvent( event );
 542 }
 543
 544 //-----------------------------------------------------------------------------
 545 // "select"
 546 //-----------------------------------------------------------------------------
 547
 548 static void gtk_menu_hilight_callback( GtkWidget *widget, wxMenu *menu )
 549 {
 550     if (g_isIdle) wxapp_install_idle_handler();
 551
 552     int id = menu->FindMenuIdByMenuItem(widget);
 553
 554     wxASSERT( id != -1 ); // should find it!
 555
 556     if (!menu->IsEnabled(id))
 557         return;
 558
 559     wxMenuEvent event( wxEVT_MENU_HIGHLIGHT, id );
 560     event.SetEventObject( menu );
 561
 562     if (menu->GetEventHandler()->ProcessEvent(event))
 563         return;
 564
 565     wxWindow *win = menu->GetInvokingWindow();
 566     if (win) win->GetEventHandler()->ProcessEvent( event );
 567 }
 568
 569 //-----------------------------------------------------------------------------
 570 // "deselect"
 571 //-----------------------------------------------------------------------------
 572
 573 static void gtk_menu_nolight_callback( GtkWidget *widget, wxMenu *menu )
 574 {
 575     if (g_isIdle) wxapp_install_idle_handler();
 576
 577     int id = menu->FindMenuIdByMenuItem(widget);
 578
 579     wxASSERT( id != -1 ); // should find it!
 580
 581     if (!menu->IsEnabled(id))
 582         return;
 583
 584     wxMenuEvent event( wxEVT_MENU_HIGHLIGHT, -1 );
 585     event.SetEventObject( menu );
 586
 587     if (menu->GetEventHandler()->ProcessEvent(event))
 588         return;
 589
 590     wxWindow *win = menu->GetInvokingWindow();
 591     if (win)
 592         win->GetEventHandler()->ProcessEvent( event );
 593 }
 594
 595 //-----------------------------------------------------------------------------
 596 // wxMenuItem
 597 //-----------------------------------------------------------------------------
 598
 599 IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxMenuItemBase)
 600
 601 wxMenuItem *wxMenuItemBase::New(wxMenu *parentMenu,
 602                                 int id,
 603                                 const wxString& name,
 604                                 const wxString& help,
 605                                 bool isCheckable,
 606                                 wxMenu *subMenu)
 607 {
 608     return new wxMenuItem(parentMenu, id, name, help, isCheckable, subMenu);
 609 }
 610
 611 wxMenuItem::wxMenuItem(wxMenu *parentMenu,
 612                        int id,
 613                        const wxString& text,
 614                        const wxString& help,
 615                        bool isCheckable,
 616                        wxMenu *subMenu)
 617 {
 618     m_id = id;
 619     m_isCheckable = isCheckable;
 620     m_isChecked = FALSE;
 621     m_isEnabled = TRUE;
 622     m_subMenu = subMenu;
 623     m_parentMenu = parentMenu;
 624     m_help = help;
 625
 626     m_menuItem = (GtkWidget *) NULL;
 627
 628     DoSetText(text);
 629 }
 630
 631 wxMenuItem::~wxMenuItem()
 632 {
 633    // don't delete menu items, the menus take care of that
 634 }
 635
 636 // return the menu item text without any menu accels
 637 /* static */
 638 wxString wxMenuItemBase::GetLabelFromText(const wxString& text)
 639 {
 640     wxString label;
 641 #if (GTK_MINOR_VERSION > 0)
 642     for ( const wxChar *pc = text.c_str(); *pc; pc++ )
 643     {
 644         if ( *pc == wxT('_') )
 645         {
 646             // this is the escape character for GTK+ - skip it
 647             continue;
 648         }
 649
 650         label += *pc;
 651     }
 652 #else // GTK+ 1.0
 653     label = text;
 654 #endif // GTK+ 1.2/1.0
 655
 656     return label;
 657 }
 658
 659 void wxMenuItem::SetText( const wxString& str )
 660 {
 661     DoSetText(str);
 662
 663     if (m_menuItem)
 664     {
 665         GtkLabel *label = GTK_LABEL( GTK_BIN(m_menuItem)->child );
 666
 667         /* set new text */
 668         gtk_label_set( label, m_text.mb_str());
 669
 670         /* reparse key accel */
 671         (void)gtk_label_parse_uline (GTK_LABEL(label), m_text.mb_str() );
 672         gtk_accel_label_refetch( GTK_ACCEL_LABEL(label) );
 673     }
 674 }
 675
 676 // it's valid for this function to be called even if m_menuItem == NULL
 677 void wxMenuItem::DoSetText( const wxString& str )
 678 {
 679     /* '\t' is the deliminator indicating a hot key */
 680     m_text.Empty();
 681     const wxChar *pc = str;
 682     for (; (*pc != wxT('\0')) && (*pc != wxT('\t')); pc++ )
 683     {
 684         if (*pc == wxT('&'))
 685         {
 686 #if (GTK_MINOR_VERSION > 0)
 687             m_text << wxT('_');
 688         }
 689         else if ( *pc == wxT('_') )    // escape underscores
 690         {
 691             m_text << wxT("__");
 692         }
 693         else if (*pc == wxT('/'))      /* we have to filter out slashes ... */
 694         {
 695             m_text << wxT('\\');  /* ... and replace them with back slashes */
 696 #endif
 697         }
 698         else
 699             m_text << *pc;
 700     }
 701
 702     /* only GTK 1.2 knows about hot keys */
 703     m_hotKey = wxT("");
 704 #if (GTK_MINOR_VERSION > 0)
 705     if(*pc == wxT('\t'))
 706     {
 707        pc++;
 708        m_hotKey = pc;
 709     }
 710 #endif
 711 }
 712
 713 #if wxUSE_ACCEL
 714
 715 wxAcceleratorEntry *wxMenuItem::GetAccel() const
 716 {
 717     if ( !GetHotKey() )
 718     {
 719         // nothing
 720         return (wxAcceleratorEntry *)NULL;
 721     }
 722
 723     // as wxGetAccelFromString() looks for TAB, insert a dummy one here
 724     wxString label;
 725     label << wxT('\t') << GetHotKey();
 726
 727     return wxGetAccelFromString(label);
 728 }
 729
 730 #endif // wxUSE_ACCEL
 731
 732 void wxMenuItem::Check( bool check )
 733 {
 734     wxCHECK_RET( m_menuItem, wxT("invalid menu item") );
 735
 736     wxCHECK_RET( IsCheckable(), wxT("Can't check uncheckable item!") )
 737
 738     if (check == m_isChecked)
 739         return;
 740
 741     wxMenuItemBase::Check( check );
 742     gtk_check_menu_item_set_state( (GtkCheckMenuItem*)m_menuItem, (gint)check );
 743 }
 744
 745 void wxMenuItem::Enable( bool enable )
 746 {
 747     wxCHECK_RET( m_menuItem, wxT("invalid menu item") );
 748
 749     gtk_widget_set_sensitive( m_menuItem, enable );
 750     wxMenuItemBase::Enable( enable );
 751 }
 752
 753 bool wxMenuItem::IsChecked() const
 754 {
 755     wxCHECK_MSG( m_menuItem, FALSE, wxT("invalid menu item") );
 756
 757     wxCHECK_MSG( IsCheckable(), FALSE,
 758                  wxT("can't get state of uncheckable item!") );
 759
 760     return ((GtkCheckMenuItem*)m_menuItem)->active != 0;
 761 }
 762
 763 wxString wxMenuItem::GetFactoryPath() const
 764 {
 765     /* in order to get the pointer to the item we need the item text _without_
 766        underscores */
 767     wxString path( wxT("<main>/") );
 768     path += GetLabel();
 769
 770     return path;
 771 }
 772
 773 //-----------------------------------------------------------------------------
 774 // wxMenu
 775 //-----------------------------------------------------------------------------
 776
 777 IMPLEMENT_DYNAMIC_CLASS(wxMenu,wxEvtHandler)
 778
 779 void wxMenu::Init()
 780 {
 781 #if (GTK_MINOR_VERSION > 0)
 782     m_accel = gtk_accel_group_new();
 783     m_factory = gtk_item_factory_new( GTK_TYPE_MENU, "<main>", m_accel );
 784     m_menu = gtk_item_factory_get_widget( m_factory, "<main>" );
 785 #else
 786     m_menu = gtk_menu_new();  // Do not show!
 787 #endif
 788
 789     m_owner = (GtkWidget*) NULL;
 790
 791 #if (GTK_MINOR_VERSION > 0)
 792     /* Tearoffs are entries, just like separators. So if we want this
 793        menu to be a tear-off one, we just append a tearoff entry
 794        immediately. */
 795     if(m_style & wxMENU_TEAROFF)
 796     {
 797        GtkItemFactoryEntry entry;
 798        entry.path = "/tearoff";
 799        entry.callback = (GtkItemFactoryCallback) NULL;
 800        entry.callback_action = 0;
 801        entry.item_type = "<Tearoff>";
 802        entry.accelerator = (gchar*) NULL;
 803        gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
 804        //GtkWidget *menuItem = gtk_item_factory_get_widget( m_factory, "<main>/tearoff" );
 805     }
 806 #endif
 807
 808     // append the title as the very first entry if we have it
 809     if ( !!m_title )
 810     {
 811         Append(-2, m_title);
 812         AppendSeparator();
 813     }
 814 }
 815
 816 wxMenu::~wxMenu()
 817 {
 818    m_items.Clear();
 819
 820    gtk_widget_destroy( m_menu );
 821
 822    gtk_object_unref( GTK_OBJECT(m_factory) );
 823 }
 824
 825 bool wxMenu::GtkAppend(wxMenuItem *mitem)
 826 {
 827     GtkWidget *menuItem;
 828
 829     if ( mitem->IsSeparator() )
 830     {
 831 #if (GTK_MINOR_VERSION > 0)
 832         GtkItemFactoryEntry entry;
 833         entry.path = "/sep";
 834         entry.callback = (GtkItemFactoryCallback) NULL;
 835         entry.callback_action = 0;
 836         entry.item_type = "<Separator>";
 837         entry.accelerator = (gchar*) NULL;
 838
 839         gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
 840
 841         /* this will be wrong for more than one separator. do we care? */
 842         menuItem = gtk_item_factory_get_widget( m_factory, "<main>/sep" );
 843 #else // GTK+ 1.0
 844         menuItem = gtk_menu_item_new();
 845 #endif // GTK 1.2/1.0
 846     }
 847     else if ( mitem->IsSubMenu() )
 848     {
 849 #if (GTK_MINOR_VERSION > 0)
 850         /* text has "_" instead of "&" after mitem->SetText() */
 851         wxString text( mitem->GetText() );
 852
 853         /* local buffer in multibyte form */
 854         char buf[200];
 855         strcpy( buf, "/" );
 856         strcat( buf, text.mb_str() );
 857
 858         GtkItemFactoryEntry entry;
 859         entry.path = buf;
 860         entry.callback = (GtkItemFactoryCallback) 0;
 861         entry.callback_action = 0;
 862         entry.item_type = "<Branch>";
 863         entry.accelerator = (gchar*) NULL;
 864
 865         gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
 866
 867         wxString path( mitem->GetFactoryPath() );
 868         menuItem = gtk_item_factory_get_item( m_factory, path.mb_str() );
 869 #else // GTK+ 1.0
 870         menuItem = gtk_menu_item_new_with_label(mitem->GetText().mbc_str());
 871 #endif // GTK 1.2/1.0
 872
 873         gtk_menu_item_set_submenu( GTK_MENU_ITEM(menuItem), mitem->GetSubMenu()->m_menu );
 874     }
 875     else // a normal item
 876     {
 877 #if (GTK_MINOR_VERSION > 0)
 878         /* text has "_" instead of "&" after mitem->SetText() */
 879         wxString text( mitem->GetText() );
 880
 881         /* local buffer in multibyte form */
 882         char buf[200];
 883         strcpy( buf, "/" );
 884         strcat( buf, text.mb_str() );
 885
 886         GtkItemFactoryEntry entry;
 887         entry.path = buf;
 888         entry.callback = (GtkItemFactoryCallback) gtk_menu_clicked_callback;
 889         entry.callback_action = 0;
 890         if ( mitem->IsCheckable() )
 891             entry.item_type = "<CheckItem>";
 892         else
 893             entry.item_type = "<Item>";
 894         entry.accelerator = (gchar*) NULL;
 895
 896 #if wxUSE_ACCEL
 897         // due to an apparent bug in GTK+, we have to use a static buffer here -
 898         // otherwise GTK+ 1.2.2 manages to override the memory we pass to it
 899         // somehow! (VZ)
 900         static char s_accel[32]; // must be big enough for <control><alt><shift>F12
 901         strncpy(s_accel, GetHotKey(*mitem).mb_str(), WXSIZEOF(s_accel));
 902         entry.accelerator = s_accel;
 903 #else // !wxUSE_ACCEL
 904         entry.accelerator = (char*) NULL;
 905 #endif // wxUSE_ACCEL/!wxUSE_ACCEL
 906
 907         gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
 908
 909         wxString path( mitem->GetFactoryPath() );
 910         menuItem = gtk_item_factory_get_widget( m_factory, path.mb_str() );
 911 #else // GTK+ 1.0
 912         menuItem = checkable ? gtk_check_menu_item_new_with_label( mitem->GetText().mb_str() )
 913                              : gtk_menu_item_new_with_label( mitem->GetText().mb_str() );
 914
 915         gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
 916                             GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),
 917                             (gpointer)this );
 918 #endif // GTK+ 1.2/1.0
 919     }
 920
 921     if ( !mitem->IsSeparator() )
 922     {
 923         gtk_signal_connect( GTK_OBJECT(menuItem), "select",
 924                             GTK_SIGNAL_FUNC(gtk_menu_hilight_callback),
 925                             (gpointer)this );
 926
 927         gtk_signal_connect( GTK_OBJECT(menuItem), "deselect",
 928                             GTK_SIGNAL_FUNC(gtk_menu_nolight_callback),
 929                             (gpointer)this );
 930     }
 931
 932 #if GTK_MINOR_VERSION == 0
 933     gtk_menu_append( GTK_MENU(m_menu), menuItem );
 934     gtk_widget_show( menuItem );
 935 #endif // GTK+ 1.0
 936
 937     mitem->SetMenuItem(menuItem);
 938
 939     return TRUE;
 940 }
 941
 942 bool wxMenu::DoAppend(wxMenuItem *mitem)
 943 {
 944     return GtkAppend(mitem) && wxMenuBase::DoAppend(mitem);
 945 }
 946
 947 bool wxMenu::DoInsert(size_t pos, wxMenuItem *item)
 948 {
 949     if ( !wxMenuBase::DoInsert(pos, item) )
 950         return FALSE;
 951
 952 #ifdef __WXGTK12__
 953     // GTK+ doesn't have a function to insert a menu using GtkItemFactory (as
 954     // of version 1.2.6), so we first append the item and then change its
 955     // index
 956     if ( !GtkAppend(item) )
 957         return FALSE;
 958
 959     GtkMenuShell *menu_shell = GTK_MENU_SHELL(m_factory->widget);
 960     gpointer data = g_list_last(menu_shell->children)->data;
 961     menu_shell->children = g_list_remove(menu_shell->children, data);
 962     menu_shell->children = g_list_insert(menu_shell->children, data, pos);
 963
 964     return TRUE;
 965 #else // GTK < 1.2
 966     // this should be easy to do...
 967     wxFAIL_MSG( wxT("not implemented") );
 968
 969     return FALSE;
 970 #endif // GTK 1.2/1.0
 971 }
 972
 973 wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
 974 {
 975     if ( !wxMenuBase::DoRemove(item) )
 976         return (wxMenuItem *)NULL;
 977
 978     // TODO: this code doesn't delete the item factory item and this seems
 979     //       impossible as of GTK 1.2.6.
 980     gtk_widget_destroy( item->GetMenuItem() );
 981
 982     return item;
 983 }
 984
 985 int wxMenu::FindMenuIdByMenuItem( GtkWidget *menuItem ) const
 986 {
 987     wxNode *node = m_items.First();
 988     while (node)
 989     {
 990         wxMenuItem *item = (wxMenuItem*)node->Data();
 991         if (item->GetMenuItem() == menuItem)
 992            return item->GetId();
 993         node = node->Next();
 994     }
 995
 996     return wxNOT_FOUND;
 997 }
 998
 999 // ----------------------------------------------------------------------------
1000 // helpers
1001 // ----------------------------------------------------------------------------
1002
1003 #if (GTK_MINOR_VERSION > 0) && wxUSE_ACCEL
1004 static wxString GetHotKey( const wxMenuItem& item )
1005 {
1006     wxString hotkey;
1007
1008     wxAcceleratorEntry *accel = item.GetAccel();
1009     if ( accel )
1010     {
1011         int flags = accel->GetFlags();
1012         if ( flags & wxACCEL_ALT )
1013             hotkey += wxT("<alt>");
1014         if ( flags & wxACCEL_CTRL )
1015             hotkey += wxT("<control>");
1016         if ( flags & wxACCEL_SHIFT )
1017             hotkey += wxT("<shift>");
1018
1019         int code = accel->GetKeyCode();
1020         switch ( code )
1021         {
1022             case WXK_F1:
1023             case WXK_F2:
1024             case WXK_F3:
1025             case WXK_F4:
1026             case WXK_F5:
1027             case WXK_F6:
1028             case WXK_F7:
1029             case WXK_F8:
1030             case WXK_F9:
1031             case WXK_F10:
1032             case WXK_F11:
1033             case WXK_F12:
1034                 hotkey << wxT('F') << code - WXK_F1 + 1;
1035                 break;
1036
1037                 // if there are any other keys wxGetAccelFromString() may return,
1038                 // we should process them here
1039
1040             default:
1041                 if ( wxIsalnum(code) )
1042                 {
1043                     hotkey << (wxChar)code;
1044
1045                     break;
1046                 }
1047
1048                 wxFAIL_MSG( wxT("unknown keyboard accel") );
1049         }
1050
1051         delete accel;
1052     }
1053
1054     return hotkey;
1055 }
1056 #endif // wxUSE_ACCEL
1057