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