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->GetParent()->m_isFrame))
 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     wxNode *node = menu->GetItems().First();
 132     while (node)
 133     {
 134         wxMenuItem *menuitem = (wxMenuItem*)node->Data();
 135         if (menuitem->IsSubMenu())
 136             wxMenubarUnsetInvokingWindow( menuitem->GetSubMenu(), win );
 137         node = node->Next();
 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->GetParent()->m_isFrame))
 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     wxNode *node = menu->GetItems().First();
 155     while (node)
 156     {
 157         wxMenuItem *menuitem = (wxMenuItem*)node->Data();
 158         if (menuitem->IsSubMenu())
 159             wxMenubarSetInvokingWindow( menuitem->GetSubMenu(), win );
 160         node = node->Next();
 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->GetParent()->m_isFrame))
 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     wxNode *node = m_menus.First();
 177     while (node)
 178     {
 179         wxMenu *menu = (wxMenu*)node->Data();
 180         wxMenubarSetInvokingWindow( menu, win );
 181         node = node->Next();
 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->GetParent()->m_isFrame))
 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     wxNode *node = m_menus.First();
 198     while (node)
 199     {
 200         wxMenu *menu = (wxMenu*)node->Data();
 201         wxMenubarUnsetInvokingWindow( menu, win );
 202         node = node->Next();
 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     wxNode *node = ((wxMenu *)menu)->GetItems().First();    // const_cast
 334     while (node)
 335     {
 336         wxMenuItem *item = (wxMenuItem*)node->Data();
 337         if (item->IsSubMenu())
 338             return FindMenuItemRecursive(item->GetSubMenu(), menuString, itemString);
 339
 340         node = node->Next();
 341     }
 342
 343     return wxNOT_FOUND;
 344 }
 345
 346 int wxMenuBar::FindMenuItem( const wxString &menuString, const wxString &itemString ) const
 347 {
 348     wxNode *node = m_menus.First();
 349     while (node)
 350     {
 351         wxMenu *menu = (wxMenu*)node->Data();
 352         int res = FindMenuItemRecursive( menu, menuString, itemString);
 353         if (res != -1) return res;
 354         node = node->Next();
 355     }
 356     return -1;
 357 }
 358
 359 // Find a wxMenuItem using its id. Recurses down into sub-menus
 360 static wxMenuItem* FindMenuItemByIdRecursive(const wxMenu* menu, int id)
 361 {
 362     wxMenuItem* result = menu->FindChildItem(id);
 363
 364     wxNode *node = ((wxMenu *)menu)->GetItems().First(); // const_cast
 365     while ( node && result == NULL )
 366     {
 367         wxMenuItem *item = (wxMenuItem*)node->Data();
 368         if (item->IsSubMenu())
 369         {
 370             result = FindMenuItemByIdRecursive( item->GetSubMenu(), id );
 371         }
 372         node = node->Next();
 373     }
 374
 375     return result;
 376 }
 377
 378 wxMenuItem* wxMenuBar::FindItem( int id, wxMenu **menuForItem ) const
 379 {
 380     wxMenuItem* result = 0;
 381     wxNode *node = m_menus.First();
 382     while (node && result == 0)
 383     {
 384         wxMenu *menu = (wxMenu*)node->Data();
 385         result = FindMenuItemByIdRecursive( menu, id );
 386         node = node->Next();
 387     }
 388
 389     if ( menuForItem )
 390     {
 391         *menuForItem = result ? result->GetMenu() : (wxMenu *)NULL;
 392     }
 393
 394     return result;
 395 }
 396
 397 void wxMenuBar::EnableTop( size_t pos, bool flag )
 398 {
 399     wxMenuList::Node *node = m_menus.Item( pos );
 400
 401     wxCHECK_RET( node, wxT("menu not found") );
 402
 403     wxMenu* menu = node->GetData();
 404
 405     if (menu->m_owner)
 406         gtk_widget_set_sensitive( menu->m_owner, flag );
 407 }
 408
 409 wxString wxMenuBar::GetLabelTop( size_t pos ) const
 410 {
 411     wxMenuList::Node *node = m_menus.Item( pos );
 412
 413     wxCHECK_MSG( node, wxT("invalid"), wxT("menu not found") );
 414
 415     wxMenu* menu = node->GetData();
 416
 417     return menu->GetTitle();
 418 }
 419
 420 void wxMenuBar::SetLabelTop( size_t pos, const wxString& label )
 421 {
 422     wxMenuList::Node *node = m_menus.Item( pos );
 423
 424     wxCHECK_RET( node, wxT("menu not found") );
 425
 426     wxMenu* menu = node->GetData();
 427
 428     menu->SetTitle( label );
 429 }
 430
 431 //-----------------------------------------------------------------------------
 432 // "activate"
 433 //-----------------------------------------------------------------------------
 434
 435 static void gtk_menu_clicked_callback( GtkWidget *widget, wxMenu *menu )
 436 {
 437     if (g_isIdle) wxapp_install_idle_handler();
 438
 439     int id = menu->FindMenuIdByMenuItem(widget);
 440
 441     /* should find it for normal (not popup) menu */
 442     wxASSERT( (id != -1) || (menu->GetInvokingWindow() != NULL) );
 443
 444     if (!menu->IsEnabled(id))
 445         return;
 446
 447     wxMenuItem* item = menu->FindChildItem( id );
 448     wxCHECK_RET( item, wxT("error in menu item callback") );
 449
 450     if (item->IsCheckable())
 451     {
 452         bool isReallyChecked = item->IsChecked();
 453         if ( item->wxMenuItemBase::IsChecked() == isReallyChecked )
 454         {
 455             /* the menu item has been checked by calling wxMenuItem->Check() */
 456             return;
 457         }
 458         else
 459         {
 460             /* the user pressed on the menu item -> report and make consistent
 461              * again */
 462             item->wxMenuItemBase::Check(isReallyChecked);
 463         }
 464     }
 465
 466     wxCommandEvent event( wxEVT_COMMAND_MENU_SELECTED, id );
 467     event.SetEventObject( menu );
 468     event.SetInt(id );
 469
 470     if (menu->GetCallback())
 471     {
 472         (void) (*(menu->GetCallback())) (*menu, event);
 473         return;
 474     }
 475
 476     if (menu->GetEventHandler()->ProcessEvent(event))
 477         return;
 478
 479     wxWindow *win = menu->GetInvokingWindow();
 480     if (win)
 481         win->GetEventHandler()->ProcessEvent( event );
 482 }
 483
 484 //-----------------------------------------------------------------------------
 485 // "select"
 486 //-----------------------------------------------------------------------------
 487
 488 static void gtk_menu_hilight_callback( GtkWidget *widget, wxMenu *menu )
 489 {
 490     if (g_isIdle) wxapp_install_idle_handler();
 491
 492     int id = menu->FindMenuIdByMenuItem(widget);
 493
 494     wxASSERT( id != -1 ); // should find it!
 495
 496     if (!menu->IsEnabled(id))
 497         return;
 498
 499     wxMenuEvent event( wxEVT_MENU_HIGHLIGHT, id );
 500     event.SetEventObject( menu );
 501
 502     if (menu->GetEventHandler()->ProcessEvent(event))
 503         return;
 504
 505     wxWindow *win = menu->GetInvokingWindow();
 506     if (win) win->GetEventHandler()->ProcessEvent( event );
 507 }
 508
 509 //-----------------------------------------------------------------------------
 510 // "deselect"
 511 //-----------------------------------------------------------------------------
 512
 513 static void gtk_menu_nolight_callback( GtkWidget *widget, wxMenu *menu )
 514 {
 515     if (g_isIdle) wxapp_install_idle_handler();
 516
 517     int id = menu->FindMenuIdByMenuItem(widget);
 518
 519     wxASSERT( id != -1 ); // should find it!
 520
 521     if (!menu->IsEnabled(id))
 522         return;
 523
 524     wxMenuEvent event( wxEVT_MENU_HIGHLIGHT, -1 );
 525     event.SetEventObject( menu );
 526
 527     if (menu->GetEventHandler()->ProcessEvent(event))
 528         return;
 529
 530     wxWindow *win = menu->GetInvokingWindow();
 531     if (win)
 532         win->GetEventHandler()->ProcessEvent( event );
 533 }
 534
 535 //-----------------------------------------------------------------------------
 536 // wxMenuItem
 537 //-----------------------------------------------------------------------------
 538
 539 IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxMenuItemBase)
 540
 541 wxMenuItem *wxMenuItemBase::New(wxMenu *parentMenu,
 542                                 int id,
 543                                 const wxString& name,
 544                                 const wxString& help,
 545                                 bool isCheckable,
 546                                 wxMenu *subMenu)
 547 {
 548     return new wxMenuItem(parentMenu, id, name, help, isCheckable, subMenu);
 549 }
 550
 551 wxMenuItem::wxMenuItem(wxMenu *parentMenu,
 552                        int id,
 553                        const wxString& text,
 554                        const wxString& help,
 555                        bool isCheckable,
 556                        wxMenu *subMenu)
 557 {
 558     m_id = id;
 559     m_isCheckable = isCheckable;
 560     m_isChecked = FALSE;
 561     m_isEnabled = TRUE;
 562     m_subMenu = subMenu;
 563     m_parentMenu = parentMenu;
 564     m_help = help;
 565
 566     m_menuItem = (GtkWidget *) NULL;
 567
 568     DoSetText(text);
 569 }
 570
 571 wxMenuItem::~wxMenuItem()
 572 {
 573    // don't delete menu items, the menus take care of that
 574 }
 575
 576 // return the menu item text without any menu accels
 577 wxString wxMenuItem::GetLabel() const
 578 {
 579     wxString label;
 580 #if (GTK_MINOR_VERSION > 0)
 581     for ( const wxChar *pc = m_text.c_str(); *pc; pc++ )
 582     {
 583         if ( *pc == wxT('_') )
 584         {
 585             // this is the escape character for GTK+ - skip it
 586             continue;
 587         }
 588
 589         label += *pc;
 590     }
 591 #else // GTK+ 1.0
 592     label = m_text;
 593 #endif // GTK+ 1.2/1.0
 594
 595     return label;
 596 }
 597
 598 void wxMenuItem::SetText( const wxString& str )
 599 {
 600     DoSetText(str);
 601
 602     if (m_menuItem)
 603     {
 604         GtkLabel *label = GTK_LABEL( GTK_BIN(m_menuItem)->child );
 605
 606         /* set new text */
 607         gtk_label_set( label, m_text.mb_str());
 608
 609         /* reparse key accel */
 610         guint accel_key = gtk_label_parse_uline (GTK_LABEL(label), m_text.mb_str() );
 611         gtk_accel_label_refetch( GTK_ACCEL_LABEL(label) );
 612     }
 613 }
 614
 615 // it's valid for this function to be called even if m_menuItem == NULL
 616 void wxMenuItem::DoSetText( const wxString& str )
 617 {
 618     /* '\t' is the deliminator indicating a hot key */
 619     m_text.Empty();
 620     const wxChar *pc = str;
 621     for (; (*pc != wxT('\0')) && (*pc != wxT('\t')); pc++ )
 622     {
 623         if (*pc == wxT('&'))
 624         {
 625 #if (GTK_MINOR_VERSION > 0)
 626             m_text << wxT('_');
 627         }
 628         else if ( *pc == wxT('_') )    // escape underscores
 629         {
 630             m_text << wxT("__");
 631         }
 632         else if (*pc == wxT('/'))      /* we have to filter out slashes ... */
 633         {
 634             m_text << wxT('\\');  /* ... and replace them with back slashes */
 635 #endif
 636         }
 637         else
 638             m_text << *pc;
 639     }
 640
 641     /* only GTK 1.2 knows about hot keys */
 642     m_hotKey = wxT("");
 643 #if (GTK_MINOR_VERSION > 0)
 644     if(*pc == wxT('\t'))
 645     {
 646        pc++;
 647        m_hotKey = pc;
 648     }
 649 #endif
 650 }
 651
 652 #if wxUSE_ACCEL
 653
 654 wxAcceleratorEntry *wxMenuItem::GetAccel() const
 655 {
 656     if ( !item.GetHotKey() )
 657     {
 658         // nothing
 659         return (wxAcceleratorEntry *)NULL;
 660     }
 661
 662     // as wxGetAccelFromString() looks for TAB, insert a dummy one here
 663     wxString label;
 664     label << wxT('\t') << item.GetHotKey();
 665
 666     return wxGetAccelFromString(label);
 667 }
 668
 669 #endif // wxUSE_ACCEL
 670
 671 void wxMenuItem::Check( bool check )
 672 {
 673     wxCHECK_RET( m_menuItem, wxT("invalid menu item") );
 674
 675     wxCHECK_RET( IsCheckable(), wxT("Can't check uncheckable item!") )
 676
 677     if (check == m_isChecked)
 678         return;
 679
 680     wxMenuItemBase::Check( check );
 681     gtk_check_menu_item_set_state( (GtkCheckMenuItem*)m_menuItem, (gint)check );
 682 }
 683
 684 void wxMenuItem::Enable( bool enable )
 685 {
 686     wxCHECK_RET( m_menuItem, wxT("invalid menu item") );
 687
 688     gtk_widget_set_sensitive( m_menuItem, enable );
 689     wxMenuItemBase::Enable( enable );
 690 }
 691
 692 bool wxMenuItem::IsChecked() const
 693 {
 694     wxCHECK_MSG( m_menuItem, FALSE, wxT("invalid menu item") );
 695
 696     wxCHECK_MSG( IsCheckable(), FALSE,
 697                  wxT("can't get state of uncheckable item!") );
 698
 699     return ((GtkCheckMenuItem*)m_menuItem)->active != 0;
 700 }
 701
 702 wxString wxMenuItem::GetFactoryPath() const
 703 {
 704     /* in order to get the pointer to the item we need the item text _without_ underscores */
 705     wxString path( wxT("<main>/") );
 706     path += GetLabel();
 707
 708     return path;
 709 }
 710
 711 //-----------------------------------------------------------------------------
 712 // wxMenu
 713 //-----------------------------------------------------------------------------
 714
 715 IMPLEMENT_DYNAMIC_CLASS(wxMenu,wxEvtHandler)
 716
 717 void wxMenu::Init()
 718 {
 719 #if (GTK_MINOR_VERSION > 0)
 720     m_accel = gtk_accel_group_new();
 721     m_factory = gtk_item_factory_new( GTK_TYPE_MENU, "<main>", m_accel );
 722     m_menu = gtk_item_factory_get_widget( m_factory, "<main>" );
 723 #else
 724     m_menu = gtk_menu_new();  // Do not show!
 725 #endif
 726
 727     m_owner = (GtkWidget*) NULL;
 728
 729 #if (GTK_MINOR_VERSION > 0)
 730     /* Tearoffs are entries, just like separators. So if we want this
 731        menu to be a tear-off one, we just append a tearoff entry
 732        immediately. */
 733     if(m_style & wxMENU_TEAROFF)
 734     {
 735        GtkItemFactoryEntry entry;
 736        entry.path = "/tearoff";
 737        entry.callback = (GtkItemFactoryCallback) NULL;
 738        entry.callback_action = 0;
 739        entry.item_type = "<Tearoff>";
 740        entry.accelerator = (gchar*) NULL;
 741        gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
 742        //GtkWidget *menuItem = gtk_item_factory_get_widget( m_factory, "<main>/tearoff" );
 743     }
 744 #endif
 745
 746     // append the title as the very first entry if we have it
 747     if ( !!m_title )
 748     {
 749         Append(-2, m_title);
 750         AppendSeparator();
 751     }
 752 }
 753
 754 wxMenu::~wxMenu()
 755 {
 756    gtk_widget_destroy( m_menu );
 757
 758    gtk_object_unref( GTK_OBJECT(m_factory) );
 759
 760    // the menu items are deleted by the base class dtor
 761 }
 762
 763 virtual bool wxMenu::DoAppend(wxMenuItem *mitem)
 764 {
 765     GtkWidget *menuItem;
 766
 767     if ( mitem->IsSeparator() )
 768     {
 769 #if (GTK_MINOR_VERSION > 0)
 770         GtkItemFactoryEntry entry;
 771         entry.path = "/sep";
 772         entry.callback = (GtkItemFactoryCallback) NULL;
 773         entry.callback_action = 0;
 774         entry.item_type = "<Separator>";
 775         entry.accelerator = (gchar*) NULL;
 776
 777         gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
 778
 779         /* this will be wrong for more than one separator. do we care? */
 780         menuItem = gtk_item_factory_get_widget( m_factory, "<main>/sep" );
 781 #else // GTK+ 1.0
 782         menuItem = gtk_menu_item_new();
 783 #endif // GTK 1.2/1.0
 784     }
 785     else if ( mitem->IsSubMenu() )
 786     {
 787 #if (GTK_MINOR_VERSION > 0)
 788         /* text has "_" instead of "&" after mitem->SetText() */
 789         wxString text( mitem->GetText() );
 790
 791         /* local buffer in multibyte form */
 792         char buf[200];
 793         strcpy( buf, "/" );
 794         strcat( buf, text.mb_str() );
 795
 796         GtkItemFactoryEntry entry;
 797         entry.path = buf;
 798         entry.callback = (GtkItemFactoryCallback) 0;
 799         entry.callback_action = 0;
 800         entry.item_type = "<Branch>";
 801
 802         gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
 803
 804         wxString path( mitem->GetFactoryPath() );
 805         GtkWidget *menuItem = gtk_item_factory_get_item( m_factory, path.mb_str() );
 806 #else // GTK+ 1.0
 807         GtkWidget *menuItem = gtk_menu_item_new_with_label(mitem->GetText().mbc_str());
 808 #endif // GTK 1.2/1.0
 809
 810         gtk_menu_item_set_submenu( GTK_MENU_ITEM(menuItem), subMenu->m_menu );
 811     }
 812     else // a normal item
 813     {
 814 #if (GTK_MINOR_VERSION > 0)
 815         /* text has "_" instead of "&" after mitem->SetText() */
 816         wxString text( mitem->GetText() );
 817
 818         /* local buffer in multibyte form */
 819         char buf[200];
 820         strcpy( buf, "/" );
 821         strcat( buf, text.mb_str() );
 822
 823         GtkItemFactoryEntry entry;
 824         entry.path = buf;
 825         entry.callback = (GtkItemFactoryCallback) gtk_menu_clicked_callback;
 826         entry.callback_action = 0;
 827         if (checkable)
 828             entry.item_type = "<CheckItem>";
 829         else
 830             entry.item_type = "<Item>";
 831
 832 #if wxUSE_ACCEL
 833         // due to an apparent bug in GTK+, we have to use a static buffer here -
 834         // otherwise GTK+ 1.2.2 manages to override the memory we pass to it
 835         // somehow! (VZ)
 836         static char s_accel[32]; // must be big enough for <control><alt><shift>F12
 837         strncpy(s_accel, GetHotKey(*mitem).mb_str(), WXSIZEOF(s_accel));
 838         entry.accelerator = s_accel;
 839 #else // !wxUSE_ACCEL
 840         entry.accelerator = (char*) NULL;
 841 #endif // wxUSE_ACCEL/!wxUSE_ACCEL
 842
 843         gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
 844
 845         wxString path( mitem->GetFactoryPath() );
 846         GtkWidget *menuItem = gtk_item_factory_get_widget( m_factory, path.mb_str() );
 847 #else // GTK+ 1.0
 848         GtkWidget *menuItem = checkable ? gtk_check_menu_item_new_with_label( mitem->GetText().mb_str() )
 849                                         : gtk_menu_item_new_with_label( mitem->GetText().mb_str() );
 850
 851         gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
 852                             GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),
 853                             (gpointer)this );
 854 #endif // GTK+ 1.2/1.0
 855     }
 856
 857     if ( !mitem->IsSeparator() )
 858     {
 859         gtk_signal_connect( GTK_OBJECT(menuItem), "select",
 860                             GTK_SIGNAL_FUNC(gtk_menu_hilight_callback),
 861                             (gpointer)this );
 862
 863         gtk_signal_connect( GTK_OBJECT(menuItem), "deselect",
 864                             GTK_SIGNAL_FUNC(gtk_menu_nolight_callback),
 865                             (gpointer)this );
 866     }
 867
 868 #if GTK_MINOR_VERSION == 0
 869     gtk_menu_append( GTK_MENU(m_menu), menuItem );
 870     gtk_widget_show( menuItem );
 871 #endif // GTK+ 1.0
 872
 873     mitem->SetMenuItem(menuItem);
 874
 875     return wxMenuBase::DoAppend(mitem);
 876 }
 877
 878 // VZ: this seems to be GTK+ 1.0 only code, I don't understand why there were
 879 //     both specialized versions of Append() and this one before my changes,
 880 //     but it seems that the others are better...
 881 #if 0
 882 void wxMenu::Append( wxMenuItem *item )
 883 {
 884     GtkWidget *menuItem = (GtkWidget*) NULL;
 885
 886     if (item->IsSeparator())
 887         menuItem = gtk_menu_item_new();
 888     else if (item->IsSubMenu())
 889         menuItem = gtk_menu_item_new_with_label(item->GetText().mbc_str());
 890     else
 891         menuItem = item->IsCheckable() ? gtk_check_menu_item_new_with_label(item->GetText().mbc_str())
 892                                        : gtk_menu_item_new_with_label(item->GetText().mbc_str());
 893
 894     if (!item->IsSeparator())
 895     {
 896         gtk_signal_connect( GTK_OBJECT(menuItem), "select",
 897                             GTK_SIGNAL_FUNC(gtk_menu_hilight_callback),
 898                             (gpointer*)this );
 899
 900         gtk_signal_connect( GTK_OBJECT(menuItem), "deselect",
 901                             GTK_SIGNAL_FUNC(gtk_menu_nolight_callback),
 902                             (gpointer*)this );
 903
 904         if (!item->IsSubMenu())
 905         {
 906             gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
 907                                 GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),
 908                                 (gpointer*)this );
 909         }
 910     }
 911
 912     gtk_menu_append( GTK_MENU(m_menu), menuItem );
 913     gtk_widget_show( menuItem );
 914
 915     item->SetMenuItem(menuItem);
 916 }
 917 #endif // 0
 918
 919 bool wxMenu::DoInsert(size_t pos, wxMenuItem *item)
 920 {
 921     if ( !wxMenuBase::DoInsert(pos, item) )
 922         return FALSE;
 923
 924     wxFAIL_MSG(wxT("not implemented"));
 925
 926     return FALSE;
 927 }
 928
 929 wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
 930 {
 931     if ( !wxMenuBase::DoRemove(item) )
 932         return (wxMenuItem *)NULL;
 933
 934     // TODO: this code doesn't delete the item factory item and this seems
 935     //       impossible as of GTK 1.2.6.
 936     gtk_widget_destroy( item->GetMenuItem() );
 937
 938     return item;
 939 }
 940
 941 int wxMenu::FindMenuIdByMenuItem( GtkWidget *menuItem ) const
 942 {
 943     wxNode *node = m_items.First();
 944     while (node)
 945     {
 946         wxMenuItem *item = (wxMenuItem*)node->Data();
 947         if (item->GetMenuItem() == menuItem)
 948            return item->GetId();
 949         node = node->Next();
 950     }
 951
 952     return wxNOT_FOUND;
 953 }
 954
 955 // ----------------------------------------------------------------------------
 956 // helpers
 957 // ----------------------------------------------------------------------------
 958
 959 #if (GTK_MINOR_VERSION > 0) && wxUSE_ACCEL
 960 static wxString GetHotKey( const wxMenuItem& item )
 961 {
 962     wxString hotkey;
 963
 964     wxAcceleratorEntry *accel = item.GetAccel();
 965     if ( accel )
 966     {
 967         int flags = accel->GetFlags();
 968         if ( flags & wxACCEL_ALT )
 969             hotkey += wxT("<alt>");
 970         if ( flags & wxACCEL_CTRL )
 971             hotkey += wxT("<control>");
 972         if ( flags & wxACCEL_SHIFT )
 973             hotkey += wxT("<shift>");
 974
 975         int code = accel->GetKeyCode();
 976         switch ( code )
 977         {
 978             case WXK_F1:
 979             case WXK_F2:
 980             case WXK_F3:
 981             case WXK_F4:
 982             case WXK_F5:
 983             case WXK_F6:
 984             case WXK_F7:
 985             case WXK_F8:
 986             case WXK_F9:
 987             case WXK_F10:
 988             case WXK_F11:
 989             case WXK_F12:
 990                 hotkey << wxT('F') << code - WXK_F1 + 1;
 991                 break;
 992
 993                 // if there are any other keys wxGetAccelFromString() may return,
 994                 // we should process them here
 995
 996             default:
 997                 if ( wxIsalnum(code) )
 998                 {
 999                     hotkey << (wxChar)code;
1000
1001                     break;
1002                 }
1003
1004                 wxFAIL_MSG( wxT("unknown keyboard accel") );
1005         }
1006
1007         delete accel;
1008     }
1009
1010     return hotkey;
1011 }
1012 #endif // wxUSE_ACCEL
1013