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/bitmap.h"
  19 #include "wx/menu.h"
  20
  21 #if wxUSE_ACCEL
  22     #include "wx/accel.h"
  23 #endif // wxUSE_ACCEL
  24
  25 #include <gdk/gdk.h>
  26 #include <gdk/gdkkeysyms.h>
  27 #include <gtk/gtk.h>
  28
  29 //-----------------------------------------------------------------------------
  30 // idle system
  31 //-----------------------------------------------------------------------------
  32
  33 extern void wxapp_install_idle_handler();
  34 extern bool g_isIdle;
  35
  36 #if (GTK_MINOR_VERSION > 0) && wxUSE_ACCEL
  37 static wxString GetHotKey( const wxMenuItem& item );
  38 #endif
  39
  40 //-----------------------------------------------------------------------------
  41 // substitute for missing GtkPixmapMenuItem
  42 //-----------------------------------------------------------------------------
  43
  44 #define GTK_TYPE_PIXMAP_MENU_ITEM            (gtk_pixmap_menu_item_get_type ())
  45 #define GTK_PIXMAP_MENU_ITEM(obj)            (GTK_CHECK_CAST ((obj), GTK_TYPE_PIXMAP_MENU_ITEM, GtkPixmapMenuItem))
  46 #define GTK_PIXMAP_MENU_ITEM_CLASS(klass)    (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_PIXMAP_MENU_ITEM, GtkPixmapMenuItemClass))
  47 #define GTK_IS_PIXMAP_MENU_ITEM(obj)         (GTK_CHECK_TYPE ((obj), GTK_TYPE_PIXMAP_MENU_ITEM))
  48 #define GTK_IS_PIXMAP_MENU_ITEM_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_PIXMAP_MENU_ITEM))
  49 //#define GTK_PIXMAP_MENU_ITEM_GET_CLASS(obj)  (GTK_CHECK_GET_CLASS ((obj), GTK_TYPE_PIXMAP_MENU_ITEM))
  50 #define GTK_PIXMAP_MENU_ITEM_GET_CLASS(obj)  (GTK_PIXMAP_MENU_ITEM_CLASS( GTK_OBJECT_GET_CLASS(obj)))
  51
  52 #ifndef GTK_MENU_ITEM_GET_CLASS
  53 #define GTK_MENU_ITEM_GET_CLASS(obj) (GTK_MENU_ITEM_CLASS( GTK_OBJECT_GET_CLASS(obj)))
  54 #endif
  55
  56 typedef struct _GtkPixmapMenuItem       GtkPixmapMenuItem;
  57 typedef struct _GtkPixmapMenuItemClass  GtkPixmapMenuItemClass;
  58
  59 struct _GtkPixmapMenuItem
  60 {
  61     GtkMenuItem menu_item;
  62
  63     GtkWidget *pixmap;
  64 };
  65
  66 struct _GtkPixmapMenuItemClass
  67 {
  68     GtkMenuItemClass parent_class;
  69
  70     guint orig_toggle_size;
  71     guint have_pixmap_count;
  72 };
  73
  74
  75 GtkType    gtk_pixmap_menu_item_get_type       (void);
  76 GtkWidget* gtk_pixmap_menu_item_new            (void);
  77 void       gtk_pixmap_menu_item_set_pixmap     (GtkPixmapMenuItem *menu_item,
  78                                                                     GtkWidget *pixmap);
  79
  80 //-----------------------------------------------------------------------------
  81 // idle system
  82 //-----------------------------------------------------------------------------
  83
  84 static wxString wxReplaceUnderscore( const wxString& title )
  85 {
  86     const wxChar *pc;
  87
  88     /* GTK 1.2 wants to have "_" instead of "&" for accelerators */
  89     wxString str;
  90     for ( pc = title; *pc != wxT('\0'); pc++ )
  91     {
  92         if (*pc == wxT('&'))
  93         {
  94 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
  95             str << wxT('_');
  96         }
  97         else if (*pc == wxT('/'))
  98         {
  99             str << wxT('\\');
 100 #endif
 101         }
 102         else
 103         {
 104 #if __WXGTK12__
 105             if ( *pc == wxT('_') )
 106             {
 107                 // underscores must be doubled to prevent them from being
 108                 // interpreted as accelerator character prefix by GTK
 109                 str << *pc;
 110             }
 111 #endif // GTK+ 1.2
 112
 113             str << *pc;
 114         }
 115     }
 116     return str;
 117 }
 118
 119 //-----------------------------------------------------------------------------
 120 // wxMenuBar
 121 //-----------------------------------------------------------------------------
 122
 123 IMPLEMENT_DYNAMIC_CLASS(wxMenuBar,wxWindow)
 124
 125 wxMenuBar::wxMenuBar( long style )
 126 {
 127     /* the parent window is known after wxFrame::SetMenu() */
 128     m_needParent = FALSE;
 129     m_style = style;
 130     m_invokingWindow = (wxWindow*) NULL;
 131
 132     if (!PreCreation( (wxWindow*) NULL, wxDefaultPosition, wxDefaultSize ) ||
 133         !CreateBase( (wxWindow*) NULL, -1, wxDefaultPosition, wxDefaultSize, style, wxDefaultValidator, wxT("menubar") ))
 134     {
 135         wxFAIL_MSG( wxT("wxMenuBar creation failed") );
 136         return;
 137     }
 138
 139     m_menus.DeleteContents( TRUE );
 140
 141     /* GTK 1.2.0 doesn't have gtk_item_factory_get_item(), but GTK 1.2.1 has. */
 142 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
 143     m_accel = gtk_accel_group_new();
 144     m_factory = gtk_item_factory_new( GTK_TYPE_MENU_BAR, "<main>", m_accel );
 145     m_menubar = gtk_item_factory_get_widget( m_factory, "<main>" );
 146 #else
 147     m_menubar = gtk_menu_bar_new();
 148 #endif
 149
 150     if (style & wxMB_DOCKABLE)
 151     {
 152         m_widget = gtk_handle_box_new();
 153         gtk_container_add( GTK_CONTAINER(m_widget), GTK_WIDGET(m_menubar) );
 154         gtk_widget_show( GTK_WIDGET(m_menubar) );
 155     }
 156     else
 157     {
 158         m_widget = GTK_WIDGET(m_menubar);
 159     }
 160
 161     PostCreation();
 162
 163     ApplyWidgetStyle();
 164 }
 165
 166 wxMenuBar::wxMenuBar()
 167 {
 168     /* the parent window is known after wxFrame::SetMenu() */
 169     m_needParent = FALSE;
 170     m_style = 0;
 171     m_invokingWindow = (wxWindow*) NULL;
 172
 173     if (!PreCreation( (wxWindow*) NULL, wxDefaultPosition, wxDefaultSize ) ||
 174         !CreateBase( (wxWindow*) NULL, -1, wxDefaultPosition, wxDefaultSize, 0, wxDefaultValidator, wxT("menubar") ))
 175     {
 176         wxFAIL_MSG( wxT("wxMenuBar creation failed") );
 177         return;
 178     }
 179
 180     m_menus.DeleteContents( TRUE );
 181
 182     /* GTK 1.2.0 doesn't have gtk_item_factory_get_item(), but GTK 1.2.1 has. */
 183 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
 184     m_accel = gtk_accel_group_new();
 185     m_factory = gtk_item_factory_new( GTK_TYPE_MENU_BAR, "<main>", m_accel );
 186     m_menubar = gtk_item_factory_get_widget( m_factory, "<main>" );
 187 #else
 188     m_menubar = gtk_menu_bar_new();
 189 #endif
 190
 191     m_widget = GTK_WIDGET(m_menubar);
 192
 193     PostCreation();
 194
 195     ApplyWidgetStyle();
 196 }
 197
 198 wxMenuBar::~wxMenuBar()
 199 {
 200 //    gtk_object_unref( GTK_OBJECT(m_factory) );  why not ?
 201 }
 202
 203 static void wxMenubarUnsetInvokingWindow( wxMenu *menu, wxWindow *win )
 204 {
 205     menu->SetInvokingWindow( (wxWindow*) NULL );
 206
 207 #if (GTK_MINOR_VERSION > 0)
 208     wxWindow *top_frame = win;
 209     while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
 210         top_frame = top_frame->GetParent();
 211
 212     /* support for native hot keys  */
 213     gtk_accel_group_detach( menu->m_accel, GTK_OBJECT(top_frame->m_widget) );
 214 #endif
 215
 216     wxMenuItemList::Node *node = menu->GetMenuItems().GetFirst();
 217     while (node)
 218     {
 219         wxMenuItem *menuitem = node->GetData();
 220         if (menuitem->IsSubMenu())
 221             wxMenubarUnsetInvokingWindow( menuitem->GetSubMenu(), win );
 222         node = node->GetNext();
 223     }
 224 }
 225
 226 static void wxMenubarSetInvokingWindow( wxMenu *menu, wxWindow *win )
 227 {
 228     menu->SetInvokingWindow( win );
 229
 230 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
 231     wxWindow *top_frame = win;
 232     while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
 233         top_frame = top_frame->GetParent();
 234
 235     /* support for native hot keys  */
 236     GtkObject *obj = GTK_OBJECT(top_frame->m_widget);
 237     if ( !g_slist_find( menu->m_accel->attach_objects, obj ) )
 238         gtk_accel_group_attach( menu->m_accel, obj );
 239 #endif
 240
 241     wxMenuItemList::Node *node = menu->GetMenuItems().GetFirst();
 242     while (node)
 243     {
 244         wxMenuItem *menuitem = node->GetData();
 245         if (menuitem->IsSubMenu())
 246             wxMenubarSetInvokingWindow( menuitem->GetSubMenu(), win );
 247         node = node->GetNext();
 248     }
 249 }
 250
 251 void wxMenuBar::SetInvokingWindow( wxWindow *win )
 252 {
 253     m_invokingWindow = win;
 254 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
 255     wxWindow *top_frame = win;
 256     while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
 257         top_frame = top_frame->GetParent();
 258
 259     /* support for native key accelerators indicated by underscroes */
 260     GtkObject *obj = GTK_OBJECT(top_frame->m_widget);
 261     if ( !g_slist_find( m_accel->attach_objects, obj ) )
 262         gtk_accel_group_attach( m_accel, obj );
 263 #endif
 264
 265     wxMenuList::Node *node = m_menus.GetFirst();
 266     while (node)
 267     {
 268         wxMenu *menu = node->GetData();
 269         wxMenubarSetInvokingWindow( menu, win );
 270         node = node->GetNext();
 271     }
 272 }
 273
 274 void wxMenuBar::UnsetInvokingWindow( wxWindow *win )
 275 {
 276     m_invokingWindow = (wxWindow*) NULL;
 277 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
 278     wxWindow *top_frame = win;
 279     while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
 280         top_frame = top_frame->GetParent();
 281
 282     /* support for native key accelerators indicated by underscroes */
 283     gtk_accel_group_detach( m_accel, GTK_OBJECT(top_frame->m_widget) );
 284 #endif
 285
 286     wxMenuList::Node *node = m_menus.GetFirst();
 287     while (node)
 288     {
 289         wxMenu *menu = node->GetData();
 290         wxMenubarUnsetInvokingWindow( menu, win );
 291         node = node->GetNext();
 292     }
 293 }
 294
 295 bool wxMenuBar::Append( wxMenu *menu, const wxString &title )
 296 {
 297     if ( !wxMenuBarBase::Append( menu, title ) )
 298         return FALSE;
 299
 300     return GtkAppend(menu, title);
 301 }
 302
 303 bool wxMenuBar::GtkAppend(wxMenu *menu, const wxString& title)
 304 {
 305     wxString str( wxReplaceUnderscore( title ) );
 306
 307     /* this doesn't have much effect right now */
 308     menu->SetTitle( str );
 309
 310     /* GTK 1.2.0 doesn't have gtk_item_factory_get_item(), but GTK 1.2.1 has. */
 311 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
 312
 313     /* local buffer in multibyte form */
 314     wxString buf;
 315     buf << wxT('/') << str.c_str();
 316
 317     char *cbuf = new char[buf.Length()+1];
 318     strcpy(cbuf, buf.mbc_str());
 319
 320     GtkItemFactoryEntry entry;
 321     entry.path = (gchar *)cbuf;  // const_cast
 322     entry.accelerator = (gchar*) NULL;
 323     entry.callback = (GtkItemFactoryCallback) NULL;
 324     entry.callback_action = 0;
 325     entry.item_type = "<Branch>";
 326
 327     gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
 328     /* in order to get the pointer to the item we need the item text _without_ underscores */
 329     wxString tmp = wxT("<main>/");
 330     const wxChar *pc;
 331     for ( pc = str; *pc != wxT('\0'); pc++ )
 332     {
 333        // contrary to the common sense, we must throw out _all_ underscores,
 334        // (i.e. "Hello__World" => "HelloWorld" and not "Hello_World" as we
 335        // might naively think). IMHO it's a bug in GTK+ (VZ)
 336        while (*pc == wxT('_'))
 337            pc++;
 338        tmp << *pc;
 339     }
 340     menu->m_owner = gtk_item_factory_get_item( m_factory, tmp.mb_str() );
 341     gtk_menu_item_set_submenu( GTK_MENU_ITEM(menu->m_owner), menu->m_menu );
 342     delete [] cbuf;
 343 #else
 344
 345     menu->m_owner = gtk_menu_item_new_with_label( str.mb_str() );
 346     gtk_widget_show( menu->m_owner );
 347     gtk_menu_item_set_submenu( GTK_MENU_ITEM(menu->m_owner), menu->m_menu );
 348
 349     gtk_menu_bar_append( GTK_MENU_BAR(m_menubar), menu->m_owner );
 350
 351 #endif
 352
 353     // m_invokingWindow is set after wxFrame::SetMenuBar(). This call enables
 354     // adding menu later on.
 355     if (m_invokingWindow)
 356         wxMenubarSetInvokingWindow( menu, m_invokingWindow );
 357
 358     return TRUE;
 359 }
 360
 361 bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title)
 362 {
 363     if ( !wxMenuBarBase::Insert(pos, menu, title) )
 364         return FALSE;
 365
 366 #if __WXGTK12__
 367     // GTK+ doesn't have a function to insert a menu using GtkItemFactory (as
 368     // of version 1.2.6), so we first append the item and then change its
 369     // index
 370     if ( !GtkAppend(menu, title) )
 371         return FALSE;
 372
 373     if (pos+1 >= m_menus.GetCount())
 374         return TRUE;
 375
 376     GtkMenuShell *menu_shell = GTK_MENU_SHELL(m_factory->widget);
 377     gpointer data = g_list_last(menu_shell->children)->data;
 378     menu_shell->children = g_list_remove(menu_shell->children, data);
 379     menu_shell->children = g_list_insert(menu_shell->children, data, pos);
 380
 381     return TRUE;
 382 #else  // GTK < 1.2
 383     // this should be easy to do with GTK 1.0 - can use standard functions for
 384     // this and don't need any hacks like above, but as I don't have GTK 1.0
 385     // any more I can't do it
 386     wxFAIL_MSG( wxT("TODO") );
 387
 388     return FALSE;
 389 #endif // GTK 1.2/1.0
 390 }
 391
 392 wxMenu *wxMenuBar::Replace(size_t pos, wxMenu *menu, const wxString& title)
 393 {
 394     // remove the old item and insert a new one
 395     wxMenu *menuOld = Remove(pos);
 396     if ( menuOld && !Insert(pos, menu, title) )
 397     {
 398         return (wxMenu*) NULL;
 399     }
 400
 401     // either Insert() succeeded or Remove() failed and menuOld is NULL
 402     return menuOld;
 403 }
 404
 405 wxMenu *wxMenuBar::Remove(size_t pos)
 406 {
 407     wxMenu *menu = wxMenuBarBase::Remove(pos);
 408     if ( !menu )
 409         return (wxMenu*) NULL;
 410
 411 /*
 412     GtkMenuShell *menu_shell = GTK_MENU_SHELL(m_factory->widget);
 413
 414     printf( "factory entries before %d\n", (int)g_slist_length(m_factory->items) );
 415     printf( "menu shell entries before %d\n", (int)g_list_length( menu_shell->children ) );
 416 */
 417
 418     // unparent calls unref() and that would delete the widget so we raise
 419     // the ref count to 2 artificially before invoking unparent.
 420     gtk_widget_ref( menu->m_menu );
 421     gtk_widget_unparent( menu->m_menu );
 422
 423     gtk_widget_destroy( menu->m_owner );
 424
 425 /*
 426     printf( "factory entries after %d\n", (int)g_slist_length(m_factory->items) );
 427     printf( "menu shell entries after %d\n", (int)g_list_length( menu_shell->children ) );
 428 */
 429
 430     return menu;
 431 }
 432
 433 static int FindMenuItemRecursive( const wxMenu *menu, const wxString &menuString, const wxString &itemString )
 434 {
 435     if (wxMenuItem::GetLabelFromText(menu->GetTitle()) == wxMenuItem::GetLabelFromText(menuString))
 436     {
 437         int res = menu->FindItem( itemString );
 438         if (res != wxNOT_FOUND)
 439             return res;
 440     }
 441
 442     wxMenuItemList::Node *node = menu->GetMenuItems().GetFirst();
 443     while (node)
 444     {
 445         wxMenuItem *item = node->GetData();
 446         if (item->IsSubMenu())
 447             return FindMenuItemRecursive(item->GetSubMenu(), menuString, itemString);
 448
 449         node = node->GetNext();
 450     }
 451
 452     return wxNOT_FOUND;
 453 }
 454
 455 int wxMenuBar::FindMenuItem( const wxString &menuString, const wxString &itemString ) const
 456 {
 457     wxMenuList::Node *node = m_menus.GetFirst();
 458     while (node)
 459     {
 460         wxMenu *menu = node->GetData();
 461         int res = FindMenuItemRecursive( menu, menuString, itemString);
 462         if (res != -1)
 463             return res;
 464         node = node->GetNext();
 465     }
 466
 467     return wxNOT_FOUND;
 468 }
 469
 470 // Find a wxMenuItem using its id. Recurses down into sub-menus
 471 static wxMenuItem* FindMenuItemByIdRecursive(const wxMenu* menu, int id)
 472 {
 473     wxMenuItem* result = menu->FindChildItem(id);
 474
 475     wxMenuItemList::Node *node = menu->GetMenuItems().GetFirst();
 476     while ( node && result == NULL )
 477     {
 478         wxMenuItem *item = node->GetData();
 479         if (item->IsSubMenu())
 480         {
 481             result = FindMenuItemByIdRecursive( item->GetSubMenu(), id );
 482         }
 483         node = node->GetNext();
 484     }
 485
 486     return result;
 487 }
 488
 489 wxMenuItem* wxMenuBar::FindItem( int id, wxMenu **menuForItem ) const
 490 {
 491     wxMenuItem* result = 0;
 492     wxMenuList::Node *node = m_menus.GetFirst();
 493     while (node && result == 0)
 494     {
 495         wxMenu *menu = node->GetData();
 496         result = FindMenuItemByIdRecursive( menu, id );
 497         node = node->GetNext();
 498     }
 499
 500     if ( menuForItem )
 501     {
 502         *menuForItem = result ? result->GetMenu() : (wxMenu *)NULL;
 503     }
 504
 505     return result;
 506 }
 507
 508 void wxMenuBar::EnableTop( size_t pos, bool flag )
 509 {
 510     wxMenuList::Node *node = m_menus.Item( pos );
 511
 512     wxCHECK_RET( node, wxT("menu not found") );
 513
 514     wxMenu* menu = node->GetData();
 515
 516     if (menu->m_owner)
 517         gtk_widget_set_sensitive( menu->m_owner, flag );
 518 }
 519
 520 wxString wxMenuBar::GetLabelTop( size_t pos ) const
 521 {
 522     wxMenuList::Node *node = m_menus.Item( pos );
 523
 524     wxCHECK_MSG( node, wxT("invalid"), wxT("menu not found") );
 525
 526     wxMenu* menu = node->GetData();
 527
 528     wxString label;
 529     wxString text( menu->GetTitle() );
 530 #if (GTK_MINOR_VERSION > 0)
 531     for ( const wxChar *pc = text.c_str(); *pc; pc++ )
 532     {
 533         if ( *pc == wxT('_') || *pc == wxT('&') )
 534         {
 535             // '_' is the escape character for GTK+ and '&' is the one for
 536             // wxWindows - skip both of them
 537             continue;
 538         }
 539
 540         label += *pc;
 541     }
 542 #else // GTK+ 1.0
 543     label = text;
 544 #endif // GTK+ 1.2/1.0
 545
 546     return label;
 547 }
 548
 549 void wxMenuBar::SetLabelTop( size_t pos, const wxString& label )
 550 {
 551     wxMenuList::Node *node = m_menus.Item( pos );
 552
 553     wxCHECK_RET( node, wxT("menu not found") );
 554
 555     wxMenu* menu = node->GetData();
 556
 557     wxString str( wxReplaceUnderscore( label ) );
 558
 559     menu->SetTitle( str );
 560
 561     if (menu->m_owner)
 562     {
 563         GtkLabel *label = GTK_LABEL( GTK_BIN(menu->m_owner)->child );
 564
 565         /* set new text */
 566         gtk_label_set( label, str.mb_str());
 567
 568         /* reparse key accel */
 569         (void)gtk_label_parse_uline (GTK_LABEL(label), str.mb_str() );
 570         gtk_accel_label_refetch( GTK_ACCEL_LABEL(label) );
 571     }
 572
 573 }
 574
 575 //-----------------------------------------------------------------------------
 576 // "activate"
 577 //-----------------------------------------------------------------------------
 578
 579 static void gtk_menu_clicked_callback( GtkWidget *widget, wxMenu *menu )
 580 {
 581     if (g_isIdle)
 582         wxapp_install_idle_handler();
 583
 584     int id = menu->FindMenuIdByMenuItem(widget);
 585
 586     /* should find it for normal (not popup) menu */
 587     wxASSERT_MSG( (id != -1) || (menu->GetInvokingWindow() != NULL),
 588                   _T("menu item not found in gtk_menu_clicked_callback") );
 589
 590     if (!menu->IsEnabled(id))
 591         return;
 592
 593     wxMenuItem* item = menu->FindChildItem( id );
 594     wxCHECK_RET( item, wxT("error in menu item callback") );
 595
 596     if (item->IsCheckable())
 597     {
 598         bool isReallyChecked = item->IsChecked();
 599         if ( item->wxMenuItemBase::IsChecked() == isReallyChecked )
 600         {
 601             /* the menu item has been checked by calling wxMenuItem->Check() */
 602             return;
 603         }
 604         else
 605         {
 606             /* the user pressed on the menu item -> report and make consistent
 607              * again */
 608             item->wxMenuItemBase::Check(isReallyChecked);
 609         }
 610     }
 611
 612     menu->SendEvent(item->GetId(), item->IsCheckable() ? item->IsChecked() : -1);
 613 }
 614
 615 //-----------------------------------------------------------------------------
 616 // "select"
 617 //-----------------------------------------------------------------------------
 618
 619 static void gtk_menu_hilight_callback( GtkWidget *widget, wxMenu *menu )
 620 {
 621     if (g_isIdle) wxapp_install_idle_handler();
 622
 623     int id = menu->FindMenuIdByMenuItem(widget);
 624
 625     wxASSERT( id != -1 ); // should find it!
 626
 627     if (!menu->IsEnabled(id))
 628         return;
 629
 630     wxMenuEvent event( wxEVT_MENU_HIGHLIGHT, id );
 631     event.SetEventObject( menu );
 632
 633     if (menu->GetEventHandler()->ProcessEvent(event))
 634         return;
 635
 636     wxWindow *win = menu->GetInvokingWindow();
 637     if (win) win->GetEventHandler()->ProcessEvent( event );
 638 }
 639
 640 //-----------------------------------------------------------------------------
 641 // "deselect"
 642 //-----------------------------------------------------------------------------
 643
 644 static void gtk_menu_nolight_callback( GtkWidget *widget, wxMenu *menu )
 645 {
 646     if (g_isIdle) wxapp_install_idle_handler();
 647
 648     int id = menu->FindMenuIdByMenuItem(widget);
 649
 650     wxASSERT( id != -1 ); // should find it!
 651
 652     if (!menu->IsEnabled(id))
 653         return;
 654
 655     wxMenuEvent event( wxEVT_MENU_HIGHLIGHT, -1 );
 656     event.SetEventObject( menu );
 657
 658     if (menu->GetEventHandler()->ProcessEvent(event))
 659         return;
 660
 661     wxWindow *win = menu->GetInvokingWindow();
 662     if (win)
 663         win->GetEventHandler()->ProcessEvent( event );
 664 }
 665
 666 //-----------------------------------------------------------------------------
 667 // wxMenuItem
 668 //-----------------------------------------------------------------------------
 669
 670 IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxMenuItemBase)
 671
 672 wxMenuItem *wxMenuItemBase::New(wxMenu *parentMenu,
 673                                 int id,
 674                                 const wxString& name,
 675                                 const wxString& help,
 676                                 bool isCheckable,
 677                                 wxMenu *subMenu)
 678 {
 679     return new wxMenuItem(parentMenu, id, name, help, isCheckable, subMenu);
 680 }
 681
 682 wxMenuItem::wxMenuItem(wxMenu *parentMenu,
 683                        int id,
 684                        const wxString& text,
 685                        const wxString& help,
 686                        bool isCheckable,
 687                        wxMenu *subMenu)
 688 {
 689     m_id = id;
 690     m_isCheckable = isCheckable;
 691     m_isChecked = FALSE;
 692     m_isEnabled = TRUE;
 693     m_subMenu = subMenu;
 694     m_parentMenu = parentMenu;
 695     m_help = help;
 696
 697     m_labelWidget = (GtkWidget *) NULL;
 698     m_menuItem = (GtkWidget *) NULL;
 699
 700     DoSetText(text);
 701 }
 702
 703 wxMenuItem::~wxMenuItem()
 704 {
 705    // don't delete menu items, the menus take care of that
 706 }
 707
 708 // return the menu item text without any menu accels
 709 /* static */
 710 wxString wxMenuItemBase::GetLabelFromText(const wxString& text)
 711 {
 712     wxString label;
 713
 714     for ( const wxChar *pc = text.c_str(); *pc; pc++ )
 715     {
 716         if ( *pc == wxT('_')  )
 717         {
 718             // wxGTK escapes "xxx_xxx" to "xxx__xxx"
 719             pc++;
 720             label += *pc;
 721             continue;
 722         }
 723
 724         if ( *pc == wxT('&') )
 725         {
 726             // wxMSW escapes &
 727             continue;
 728         }
 729
 730         label += *pc;
 731     }
 732
 733     return label;
 734 }
 735
 736 void wxMenuItem::SetText( const wxString& str )
 737 {
 738     DoSetText(str);
 739
 740     if (m_menuItem)
 741     {
 742         GtkLabel *label;
 743         if (m_labelWidget)
 744           label = (GtkLabel*) m_labelWidget;
 745         else
 746           label = GTK_LABEL( GTK_BIN(m_menuItem)->child );
 747
 748         /* set new text */
 749         gtk_label_set( label, m_text.mb_str());
 750
 751         /* reparse key accel */
 752         (void)gtk_label_parse_uline (GTK_LABEL(label), m_text.mb_str() );
 753         gtk_accel_label_refetch( GTK_ACCEL_LABEL(label) );
 754     }
 755 }
 756
 757 // it's valid for this function to be called even if m_menuItem == NULL
 758 void wxMenuItem::DoSetText( const wxString& str )
 759 {
 760     /* '\t' is the deliminator indicating a hot key */
 761     m_text.Empty();
 762     const wxChar *pc = str;
 763     for (; (*pc != wxT('\0')) && (*pc != wxT('\t')); pc++ )
 764     {
 765         if (*pc == wxT('&'))
 766         {
 767 #if (GTK_MINOR_VERSION > 0)
 768             m_text << wxT('_');
 769         }
 770         else if ( *pc == wxT('_') )    // escape underscores
 771         {
 772             m_text << wxT("__");
 773         }
 774         else if (*pc == wxT('/'))      /* we have to filter out slashes ... */
 775         {
 776             m_text << wxT('\\');  /* ... and replace them with back slashes */
 777 #endif
 778         }
 779         else
 780             m_text << *pc;
 781     }
 782
 783     /* only GTK 1.2 knows about hot keys */
 784     m_hotKey = wxT("");
 785 #if (GTK_MINOR_VERSION > 0)
 786     if(*pc == wxT('\t'))
 787     {
 788        pc++;
 789        m_hotKey = pc;
 790     }
 791 #endif
 792 }
 793
 794 #if wxUSE_ACCEL
 795
 796 wxAcceleratorEntry *wxMenuItem::GetAccel() const
 797 {
 798     if ( !GetHotKey() )
 799     {
 800         // nothing
 801         return (wxAcceleratorEntry *)NULL;
 802     }
 803
 804     // as wxGetAccelFromString() looks for TAB, insert a dummy one here
 805     wxString label;
 806     label << wxT('\t') << GetHotKey();
 807
 808     return wxGetAccelFromString(label);
 809 }
 810
 811 #endif // wxUSE_ACCEL
 812
 813 void wxMenuItem::Check( bool check )
 814 {
 815     wxCHECK_RET( m_menuItem, wxT("invalid menu item") );
 816
 817     wxCHECK_RET( IsCheckable(), wxT("Can't check uncheckable item!") )
 818
 819     if (check == m_isChecked)
 820         return;
 821
 822     wxMenuItemBase::Check( check );
 823     gtk_check_menu_item_set_state( (GtkCheckMenuItem*)m_menuItem, (gint)check );
 824 }
 825
 826 void wxMenuItem::Enable( bool enable )
 827 {
 828     wxCHECK_RET( m_menuItem, wxT("invalid menu item") );
 829
 830     gtk_widget_set_sensitive( m_menuItem, enable );
 831     wxMenuItemBase::Enable( enable );
 832 }
 833
 834 bool wxMenuItem::IsChecked() const
 835 {
 836     wxCHECK_MSG( m_menuItem, FALSE, wxT("invalid menu item") );
 837
 838     wxCHECK_MSG( IsCheckable(), FALSE,
 839                  wxT("can't get state of uncheckable item!") );
 840
 841     return ((GtkCheckMenuItem*)m_menuItem)->active != 0;
 842 }
 843
 844 wxString wxMenuItem::GetFactoryPath() const
 845 {
 846     /* in order to get the pointer to the item we need the item text
 847        _without_ underscores */
 848     wxString path( wxT("<main>/") );
 849
 850     for ( const wxChar *pc = m_text.c_str(); *pc; pc++ )
 851     {
 852         if ( *pc == wxT('_') || *pc == wxT('&') )
 853         {
 854             // remove '_' and '&' unconditionally
 855             continue;
 856         }
 857
 858         path += *pc;
 859     }
 860
 861     return path;
 862 }
 863
 864 //-----------------------------------------------------------------------------
 865 // wxMenu
 866 //-----------------------------------------------------------------------------
 867
 868 IMPLEMENT_DYNAMIC_CLASS(wxMenu,wxEvtHandler)
 869
 870 void wxMenu::Init()
 871 {
 872 #if (GTK_MINOR_VERSION > 0)
 873     m_accel = gtk_accel_group_new();
 874     m_factory = gtk_item_factory_new( GTK_TYPE_MENU, "<main>", m_accel );
 875     m_menu = gtk_item_factory_get_widget( m_factory, "<main>" );
 876 #else
 877     m_menu = gtk_menu_new();  // Do not show!
 878 #endif
 879
 880     m_owner = (GtkWidget*) NULL;
 881
 882 #if (GTK_MINOR_VERSION > 0)
 883     /* Tearoffs are entries, just like separators. So if we want this
 884        menu to be a tear-off one, we just append a tearoff entry
 885        immediately. */
 886     if(m_style & wxMENU_TEAROFF)
 887     {
 888        GtkItemFactoryEntry entry;
 889        entry.path = "/tearoff";
 890        entry.callback = (GtkItemFactoryCallback) NULL;
 891        entry.callback_action = 0;
 892        entry.item_type = "<Tearoff>";
 893        entry.accelerator = (gchar*) NULL;
 894        gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
 895        //GtkWidget *menuItem = gtk_item_factory_get_widget( m_factory, "<main>/tearoff" );
 896     }
 897 #endif
 898
 899     // append the title as the very first entry if we have it
 900     if ( !!m_title )
 901     {
 902         Append(-2, m_title);
 903         AppendSeparator();
 904     }
 905 }
 906
 907 wxMenu::~wxMenu()
 908 {
 909    m_items.Clear();
 910
 911    gtk_widget_destroy( m_menu );
 912
 913    gtk_object_unref( GTK_OBJECT(m_factory) );
 914 }
 915
 916 bool wxMenu::GtkAppend(wxMenuItem *mitem)
 917 {
 918     GtkWidget *menuItem;
 919
 920     bool appended = FALSE;
 921
 922     if ( mitem->IsSeparator() )
 923     {
 924 #if (GTK_MINOR_VERSION > 0)
 925         GtkItemFactoryEntry entry;
 926         entry.path = "/sep";
 927         entry.callback = (GtkItemFactoryCallback) NULL;
 928         entry.callback_action = 0;
 929         entry.item_type = "<Separator>";
 930         entry.accelerator = (gchar*) NULL;
 931
 932         gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
 933
 934         /* this will be wrong for more than one separator. do we care? */
 935         menuItem = gtk_item_factory_get_widget( m_factory, "<main>/sep" );
 936 #else // GTK+ 1.0
 937         menuItem = gtk_menu_item_new();
 938 #endif // GTK 1.2/1.0
 939     }
 940     else if ( mitem->IsSubMenu() )
 941     {
 942 #if (GTK_MINOR_VERSION > 0)
 943         /* text has "_" instead of "&" after mitem->SetText() */
 944         wxString text( mitem->GetText() );
 945
 946         /* local buffer in multibyte form */
 947         char buf[200];
 948         strcpy( buf, "/" );
 949         strcat( buf, text.mb_str() );
 950
 951         GtkItemFactoryEntry entry;
 952         entry.path = buf;
 953         entry.callback = (GtkItemFactoryCallback) 0;
 954         entry.callback_action = 0;
 955         entry.item_type = "<Branch>";
 956         entry.accelerator = (gchar*) NULL;
 957
 958         gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
 959
 960         wxString path( mitem->GetFactoryPath() );
 961         menuItem = gtk_item_factory_get_item( m_factory, path.mb_str() );
 962 #else // GTK+ 1.0
 963         menuItem = gtk_menu_item_new_with_label(mitem->GetText().mbc_str());
 964 #endif // GTK 1.2/1.0
 965
 966         gtk_menu_item_set_submenu( GTK_MENU_ITEM(menuItem), mitem->GetSubMenu()->m_menu );
 967
 968         // if adding a submenu to a menu already existing in the menu bar, we
 969         // must set invoking window to allow processing events from this
 970         // submenu
 971         if ( m_invokingWindow )
 972             wxMenubarSetInvokingWindow(mitem->GetSubMenu(), m_invokingWindow);
 973     }
 974     else if (mitem->GetBitmap().Ok()) // An item with bitmap
 975     {
 976         wxString text( mitem->GetText() );
 977         const wxBitmap *bitmap = &mitem->GetBitmap();
 978
 979         menuItem = gtk_pixmap_menu_item_new ();
 980         GtkWidget *label = gtk_accel_label_new (text.mb_str());
 981         gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
 982         gtk_container_add (GTK_CONTAINER (menuItem), label);
 983         guint accel_key = gtk_label_parse_uline (GTK_LABEL(label), text.mb_str() );
 984         gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (label), menuItem);
 985         if (accel_key != GDK_VoidSymbol)
 986             {
 987             gtk_widget_add_accelerator (menuItem,
 988                                         "activate_item",
 989                                         gtk_menu_ensure_uline_accel_group (GTK_MENU (m_menu)),
 990                                         accel_key, 0,
 991                                         GTK_ACCEL_LOCKED);
 992         }
 993         gtk_widget_show (label);
 994
 995         mitem->SetLabelWidget(label);
 996
 997         GtkWidget* pixmap = gtk_pixmap_new( bitmap->GetPixmap(), bitmap->GetMask() ? bitmap->GetMask()->GetBitmap() : (GdkBitmap* )NULL);
 998         gtk_widget_show(pixmap);
 999         gtk_pixmap_menu_item_set_pixmap(GTK_PIXMAP_MENU_ITEM( menuItem ), pixmap);
1000
1001         gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
1002                             GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),
1003                             (gpointer)this );
1004         gtk_menu_append( GTK_MENU(m_menu), menuItem );
1005         gtk_widget_show( menuItem );
1006
1007         appended = TRUE; // We've done this, don't do it again
1008     }
1009     else // a normal item
1010     {
1011 #if (GTK_MINOR_VERSION > 0)
1012         /* text has "_" instead of "&" after mitem->SetText() */
1013         wxString text( mitem->GetText() );
1014
1015         /* local buffer in multibyte form */
1016         char buf[200];
1017         strcpy( buf, "/" );
1018         strcat( buf, text.mb_str() );
1019
1020         GtkItemFactoryEntry entry;
1021         entry.path = buf;
1022         entry.callback = (GtkItemFactoryCallback) gtk_menu_clicked_callback;
1023         entry.callback_action = 0;
1024         if ( mitem->IsCheckable() )
1025             entry.item_type = "<CheckItem>";
1026         else
1027             entry.item_type = "<Item>";
1028         entry.accelerator = (gchar*) NULL;
1029
1030 #if wxUSE_ACCEL
1031         // due to an apparent bug in GTK+, we have to use a static buffer here -
1032         // otherwise GTK+ 1.2.2 manages to override the memory we pass to it
1033         // somehow! (VZ)
1034         static char s_accel[50]; // must be big enougg
1035         wxString tmp( GetHotKey(*mitem) );
1036         strncpy(s_accel, tmp.mb_str(), WXSIZEOF(s_accel));
1037         entry.accelerator = s_accel;
1038 #else // !wxUSE_ACCEL
1039         entry.accelerator = (char*) NULL;
1040 #endif // wxUSE_ACCEL/!wxUSE_ACCEL
1041
1042         gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
1043
1044         wxString path( mitem->GetFactoryPath() );
1045         menuItem = gtk_item_factory_get_widget( m_factory, path.mb_str() );
1046 #else // GTK+ 1.0
1047         menuItem = checkable ? gtk_check_menu_item_new_with_label( mitem->GetText().mb_str() )
1048                              : gtk_menu_item_new_with_label( mitem->GetText().mb_str() );
1049
1050         gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
1051                             GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),
1052                             (gpointer)this );
1053 #endif // GTK+ 1.2/1.0
1054     }
1055
1056     if ( !mitem->IsSeparator() )
1057     {
1058         gtk_signal_connect( GTK_OBJECT(menuItem), "select",
1059                             GTK_SIGNAL_FUNC(gtk_menu_hilight_callback),
1060                             (gpointer)this );
1061
1062         gtk_signal_connect( GTK_OBJECT(menuItem), "deselect",
1063                             GTK_SIGNAL_FUNC(gtk_menu_nolight_callback),
1064                             (gpointer)this );
1065     }
1066
1067 #if GTK_MINOR_VERSION == 0
1068     if (!appended)
1069     {
1070         gtk_menu_append( GTK_MENU(m_menu), menuItem );
1071         gtk_widget_show( menuItem );
1072     }
1073 #endif // GTK+ 1.0
1074
1075     mitem->SetMenuItem(menuItem);
1076
1077     return TRUE;
1078 }
1079
1080 bool wxMenu::DoAppend(wxMenuItem *mitem)
1081 {
1082     return GtkAppend(mitem) && wxMenuBase::DoAppend(mitem);
1083 }
1084
1085 bool wxMenu::DoInsert(size_t pos, wxMenuItem *item)
1086 {
1087     if ( !wxMenuBase::DoInsert(pos, item) )
1088         return FALSE;
1089
1090 #ifdef __WXGTK12__
1091     // GTK+ doesn't have a function to insert a menu using GtkItemFactory (as
1092     // of version 1.2.6), so we first append the item and then change its
1093     // index
1094     if ( !GtkAppend(item) )
1095         return FALSE;
1096
1097     if ( m_style & wxMENU_TEAROFF )
1098     {
1099         // change the position as the first item is the tear-off marker
1100         pos++;
1101     }
1102
1103     GtkMenuShell *menu_shell = GTK_MENU_SHELL(m_factory->widget);
1104     gpointer data = g_list_last(menu_shell->children)->data;
1105     menu_shell->children = g_list_remove(menu_shell->children, data);
1106     menu_shell->children = g_list_insert(menu_shell->children, data, pos);
1107
1108     return TRUE;
1109 #else // GTK < 1.2
1110     // this should be easy to do...
1111     wxFAIL_MSG( wxT("not implemented") );
1112
1113     return FALSE;
1114 #endif // GTK 1.2/1.0
1115 }
1116
1117 wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
1118 {
1119     if ( !wxMenuBase::DoRemove(item) )
1120         return (wxMenuItem *)NULL;
1121
1122     // TODO: this code doesn't delete the item factory item and this seems
1123     //       impossible as of GTK 1.2.6.
1124     gtk_widget_destroy( item->GetMenuItem() );
1125
1126     return item;
1127 }
1128
1129 int wxMenu::FindMenuIdByMenuItem( GtkWidget *menuItem ) const
1130 {
1131     wxNode *node = m_items.First();
1132     while (node)
1133     {
1134         wxMenuItem *item = (wxMenuItem*)node->Data();
1135         if (item->GetMenuItem() == menuItem)
1136            return item->GetId();
1137         node = node->Next();
1138     }
1139
1140     return wxNOT_FOUND;
1141 }
1142
1143 // ----------------------------------------------------------------------------
1144 // helpers
1145 // ----------------------------------------------------------------------------
1146
1147 #if (GTK_MINOR_VERSION > 0) && wxUSE_ACCEL
1148 static wxString GetHotKey( const wxMenuItem& item )
1149 {
1150     wxString hotkey;
1151
1152     wxAcceleratorEntry *accel = item.GetAccel();
1153     if ( accel )
1154     {
1155         int flags = accel->GetFlags();
1156         if ( flags & wxACCEL_ALT )
1157             hotkey += wxT("<alt>");
1158         if ( flags & wxACCEL_CTRL )
1159             hotkey += wxT("<control>");
1160         if ( flags & wxACCEL_SHIFT )
1161             hotkey += wxT("<shift>");
1162
1163         int code = accel->GetKeyCode();
1164         switch ( code )
1165         {
1166             case WXK_F1:
1167             case WXK_F2:
1168             case WXK_F3:
1169             case WXK_F4:
1170             case WXK_F5:
1171             case WXK_F6:
1172             case WXK_F7:
1173             case WXK_F8:
1174             case WXK_F9:
1175             case WXK_F10:
1176             case WXK_F11:
1177             case WXK_F12:
1178                 hotkey << wxT('F') << code - WXK_F1 + 1;
1179                 break;
1180
1181                 // GTK seems to use XStringToKeySym here
1182             case WXK_NUMPAD_INSERT:
1183                 hotkey << wxT("KP_Insert" );
1184                 break;
1185             case WXK_NUMPAD_DELETE:
1186                 hotkey << wxT("KP_Delete" );
1187                 break;
1188             case WXK_INSERT:
1189                 hotkey << wxT("Insert" );
1190                 break;
1191             case WXK_DELETE:
1192                 hotkey << wxT("Delete" );
1193                 break;
1194
1195                 // if there are any other keys wxGetAccelFromString() may return,
1196                 // we should process them here
1197
1198             default:
1199                 if ( wxIsalnum(code) )
1200                 {
1201                     hotkey << (wxChar)code;
1202
1203                     break;
1204                 }
1205
1206                 wxFAIL_MSG( wxT("unknown keyboard accel") );
1207         }
1208
1209         delete accel;
1210     }
1211
1212     return hotkey;
1213 }
1214 #endif // wxUSE_ACCEL
1215
1216
1217 //-----------------------------------------------------------------------------
1218 // substitute for missing GtkPixmapMenuItem
1219 //-----------------------------------------------------------------------------
1220
1221 /*
1222  * Copyright (C) 1998, 1999, 2000 Free Software Foundation
1223  * All rights reserved.
1224  *
1225  * This file is part of the Gnome Library.
1226  *
1227  * The Gnome Library is free software; you can redistribute it and/or
1228  * modify it under the terms of the GNU Library General Public License as
1229  * published by the Free Software Foundation; either version 2 of the
1230  * License, or (at your option) any later version.
1231  *
1232  * The Gnome Library is distributed in the hope that it will be useful,
1233  * but WITHOUT ANY WARRANTY; without even the implied warranty of
1234  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
1235  * Library General Public License for more details.
1236  *
1237  * You should have received a copy of the GNU Library General Public
1238  * License along with the Gnome Library; see the file COPYING.LIB.  If not,
1239  * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
1240  * Boston, MA 02111-1307, USA.
1241  */
1242 /*
1243   @NOTATION@
1244  */
1245
1246 /* Author: Dietmar Maurer <dm@vlsivie.tuwien.ac.at> */
1247
1248 #include <gtk/gtkaccellabel.h>
1249 #include <gtk/gtksignal.h>
1250 #include <gtk/gtkmenuitem.h>
1251 #include <gtk/gtkmenu.h>
1252 #include <gtk/gtkcontainer.h>
1253
1254 static void gtk_pixmap_menu_item_class_init    (GtkPixmapMenuItemClass *klass);
1255 static void gtk_pixmap_menu_item_init          (GtkPixmapMenuItem      *menu_item);
1256 static void gtk_pixmap_menu_item_draw          (GtkWidget              *widget,
1257                                                 GdkRectangle           *area);
1258 static gint gtk_pixmap_menu_item_expose        (GtkWidget              *widget,
1259                                                 GdkEventExpose         *event);
1260
1261 /* we must override the following functions */
1262
1263 static void gtk_pixmap_menu_item_map           (GtkWidget        *widget);
1264 static void gtk_pixmap_menu_item_size_allocate (GtkWidget        *widget,
1265                                                 GtkAllocation    *allocation);
1266 static void gtk_pixmap_menu_item_forall        (GtkContainer    *container,
1267                                                 gboolean         include_internals,
1268                                                 GtkCallback      callback,
1269                                                 gpointer         callback_data);
1270 static void gtk_pixmap_menu_item_size_request  (GtkWidget        *widget,
1271                                                 GtkRequisition   *requisition);
1272 static void gtk_pixmap_menu_item_remove        (GtkContainer *container,
1273                                                 GtkWidget    *child);
1274
1275 static void changed_have_pixmap_status         (GtkPixmapMenuItem *menu_item);
1276
1277 static GtkMenuItemClass *parent_class = NULL;
1278
1279 #define BORDER_SPACING  3
1280 #define PMAP_WIDTH 20
1281
1282 GtkType
1283 gtk_pixmap_menu_item_get_type (void)
1284 {
1285   static GtkType pixmap_menu_item_type = 0;
1286
1287   if (!pixmap_menu_item_type)
1288     {
1289       GtkTypeInfo pixmap_menu_item_info =
1290       {
1291         "GtkPixmapMenuItem",
1292         sizeof (GtkPixmapMenuItem),
1293         sizeof (GtkPixmapMenuItemClass),
1294         (GtkClassInitFunc) gtk_pixmap_menu_item_class_init,
1295         (GtkObjectInitFunc) gtk_pixmap_menu_item_init,
1296         /* reserved_1 */ NULL,
1297         /* reserved_2 */ NULL,
1298         (GtkClassInitFunc) NULL,
1299       };
1300
1301       pixmap_menu_item_type = gtk_type_unique (gtk_menu_item_get_type (),
1302                                                &pixmap_menu_item_info);
1303     }
1304
1305   return pixmap_menu_item_type;
1306 }
1307
1308 /**
1309  * gtk_pixmap_menu_item_new
1310  *
1311  * Creates a new pixmap menu item. Use gtk_pixmap_menu_item_set_pixmap()
1312  * to set the pixmap wich is displayed at the left side.
1313  *
1314  * Returns:
1315  * &GtkWidget pointer to new menu item
1316  **/
1317
1318 GtkWidget*
1319 gtk_pixmap_menu_item_new (void)
1320 {
1321   return GTK_WIDGET (gtk_type_new (gtk_pixmap_menu_item_get_type ()));
1322 }
1323
1324 static void
1325 gtk_pixmap_menu_item_class_init (GtkPixmapMenuItemClass *klass)
1326 {
1327   GtkObjectClass *object_class;
1328   GtkWidgetClass *widget_class;
1329   GtkMenuItemClass *menu_item_class;
1330   GtkContainerClass *container_class;
1331
1332   object_class = (GtkObjectClass*) klass;
1333   widget_class = (GtkWidgetClass*) klass;
1334   menu_item_class = (GtkMenuItemClass*) klass;
1335   container_class = (GtkContainerClass*) klass;
1336
1337   parent_class = (GtkMenuItemClass*) gtk_type_class (gtk_menu_item_get_type ());
1338
1339   widget_class->draw = gtk_pixmap_menu_item_draw;
1340   widget_class->expose_event = gtk_pixmap_menu_item_expose;
1341   widget_class->map = gtk_pixmap_menu_item_map;
1342   widget_class->size_allocate = gtk_pixmap_menu_item_size_allocate;
1343   widget_class->size_request = gtk_pixmap_menu_item_size_request;
1344
1345   container_class->forall = gtk_pixmap_menu_item_forall;
1346   container_class->remove = gtk_pixmap_menu_item_remove;
1347
1348   klass->orig_toggle_size = menu_item_class->toggle_size;
1349   klass->have_pixmap_count = 0;
1350 }
1351
1352 static void
1353 gtk_pixmap_menu_item_init (GtkPixmapMenuItem *menu_item)
1354 {
1355   GtkMenuItem *mi;
1356
1357   mi = GTK_MENU_ITEM (menu_item);
1358
1359   menu_item->pixmap = NULL;
1360 }
1361
1362 static void
1363 gtk_pixmap_menu_item_draw (GtkWidget    *widget,
1364                            GdkRectangle *area)
1365 {
1366   g_return_if_fail (widget != NULL);
1367   g_return_if_fail (GTK_IS_PIXMAP_MENU_ITEM (widget));
1368   g_return_if_fail (area != NULL);
1369
1370   if (GTK_WIDGET_CLASS (parent_class)->draw)
1371     (* GTK_WIDGET_CLASS (parent_class)->draw) (widget, area);
1372
1373   if (GTK_WIDGET_DRAWABLE (widget) &&
1374       GTK_PIXMAP_MENU_ITEM(widget)->pixmap) {
1375     gtk_widget_draw(GTK_WIDGET(GTK_PIXMAP_MENU_ITEM(widget)->pixmap),NULL);
1376   }
1377 }
1378
1379 static gint
1380 gtk_pixmap_menu_item_expose (GtkWidget      *widget,
1381                              GdkEventExpose *event)
1382 {
1383   g_return_val_if_fail (widget != NULL, FALSE);
1384   g_return_val_if_fail (GTK_IS_PIXMAP_MENU_ITEM (widget), FALSE);
1385   g_return_val_if_fail (event != NULL, FALSE);
1386
1387   if (GTK_WIDGET_CLASS (parent_class)->expose_event)
1388     (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
1389
1390   if (GTK_WIDGET_DRAWABLE (widget) &&
1391       GTK_PIXMAP_MENU_ITEM(widget)->pixmap) {
1392     gtk_widget_draw(GTK_WIDGET(GTK_PIXMAP_MENU_ITEM(widget)->pixmap),NULL);
1393   }
1394
1395   return FALSE;
1396 }
1397
1398 /**
1399  * gtk_pixmap_menu_item_set_pixmap
1400  * @menu_item: Pointer to the pixmap menu item
1401  * @pixmap: Pointer to a pixmap widget
1402  *
1403  * Set the pixmap of the menu item.
1404  *
1405  **/
1406
1407 void
1408 gtk_pixmap_menu_item_set_pixmap (GtkPixmapMenuItem *menu_item,
1409                                  GtkWidget         *pixmap)
1410 {
1411   g_return_if_fail (menu_item != NULL);
1412   g_return_if_fail (pixmap != NULL);
1413   g_return_if_fail (GTK_IS_PIXMAP_MENU_ITEM (menu_item));
1414   g_return_if_fail (GTK_IS_WIDGET (pixmap));
1415   g_return_if_fail (menu_item->pixmap == NULL);
1416
1417   gtk_widget_set_parent (pixmap, GTK_WIDGET (menu_item));
1418   menu_item->pixmap = pixmap;
1419
1420   if (GTK_WIDGET_REALIZED (pixmap->parent) &&
1421       !GTK_WIDGET_REALIZED (pixmap))
1422     gtk_widget_realize (pixmap);
1423
1424   if (GTK_WIDGET_VISIBLE (pixmap->parent)) {
1425     if (GTK_WIDGET_MAPPED (pixmap->parent) &&
1426         GTK_WIDGET_VISIBLE(pixmap) &&
1427         !GTK_WIDGET_MAPPED (pixmap))
1428       gtk_widget_map (pixmap);
1429   }
1430
1431   changed_have_pixmap_status(menu_item);
1432
1433   if (GTK_WIDGET_VISIBLE (pixmap) && GTK_WIDGET_VISIBLE (menu_item))
1434     gtk_widget_queue_resize (pixmap);
1435 }
1436
1437 static void
1438 gtk_pixmap_menu_item_map (GtkWidget *widget)
1439 {
1440   GtkPixmapMenuItem *menu_item;
1441
1442   g_return_if_fail (widget != NULL);
1443   g_return_if_fail (GTK_IS_PIXMAP_MENU_ITEM (widget));
1444
1445   menu_item = GTK_PIXMAP_MENU_ITEM(widget);
1446
1447   GTK_WIDGET_CLASS(parent_class)->map(widget);
1448
1449   if (menu_item->pixmap &&
1450       GTK_WIDGET_VISIBLE (menu_item->pixmap) &&
1451       !GTK_WIDGET_MAPPED (menu_item->pixmap))
1452     gtk_widget_map (menu_item->pixmap);
1453 }
1454
1455 static void
1456 gtk_pixmap_menu_item_size_allocate (GtkWidget        *widget,
1457                                     GtkAllocation    *allocation)
1458 {
1459   GtkPixmapMenuItem *pmenu_item;
1460
1461   pmenu_item = GTK_PIXMAP_MENU_ITEM(widget);
1462
1463   if (pmenu_item->pixmap && GTK_WIDGET_VISIBLE(pmenu_item))
1464     {
1465       GtkAllocation child_allocation;
1466       int border_width;
1467
1468       border_width = GTK_CONTAINER (widget)->border_width;
1469
1470       child_allocation.width = pmenu_item->pixmap->requisition.width;
1471       child_allocation.height = pmenu_item->pixmap->requisition.height;
1472       child_allocation.x = border_width + BORDER_SPACING;
1473       child_allocation.y = (border_width + BORDER_SPACING
1474                             + (((allocation->height - child_allocation.height) - child_allocation.x)
1475                                / 2)); /* center pixmaps vertically */
1476       gtk_widget_size_allocate (pmenu_item->pixmap, &child_allocation);
1477     }
1478
1479   if (GTK_WIDGET_CLASS (parent_class)->size_allocate)
1480     GTK_WIDGET_CLASS(parent_class)->size_allocate (widget, allocation);
1481 }
1482
1483 static void
1484 gtk_pixmap_menu_item_forall (GtkContainer    *container,
1485                              gboolean         include_internals,
1486                              GtkCallback      callback,
1487                              gpointer         callback_data)
1488 {
1489   GtkPixmapMenuItem *menu_item;
1490
1491   g_return_if_fail (container != NULL);
1492   g_return_if_fail (GTK_IS_PIXMAP_MENU_ITEM (container));
1493   g_return_if_fail (callback != NULL);
1494
1495   menu_item = GTK_PIXMAP_MENU_ITEM (container);
1496
1497   if (menu_item->pixmap)
1498     (* callback) (menu_item->pixmap, callback_data);
1499
1500   GTK_CONTAINER_CLASS(parent_class)->forall(container,include_internals,
1501                                             callback,callback_data);
1502 }
1503
1504 static void
1505 gtk_pixmap_menu_item_size_request (GtkWidget      *widget,
1506                                    GtkRequisition *requisition)
1507 {
1508   GtkPixmapMenuItem *menu_item;
1509   GtkRequisition req = {0, 0};
1510
1511   g_return_if_fail (widget != NULL);
1512   g_return_if_fail (GTK_IS_MENU_ITEM (widget));
1513   g_return_if_fail (requisition != NULL);
1514
1515   GTK_WIDGET_CLASS(parent_class)->size_request(widget,requisition);
1516
1517   menu_item = GTK_PIXMAP_MENU_ITEM (widget);
1518
1519   if (menu_item->pixmap)
1520     gtk_widget_size_request(menu_item->pixmap, &req);
1521
1522   requisition->height = MAX(req.height + GTK_CONTAINER(widget)->border_width + BORDER_SPACING, (unsigned int) requisition->height);
1523   requisition->width += (req.width + GTK_CONTAINER(widget)->border_width + BORDER_SPACING);
1524 }
1525
1526 static void
1527 gtk_pixmap_menu_item_remove (GtkContainer *container,
1528                              GtkWidget    *child)
1529 {
1530   GtkBin *bin;
1531   gboolean widget_was_visible;
1532
1533   g_return_if_fail (container != NULL);
1534   g_return_if_fail (GTK_IS_PIXMAP_MENU_ITEM (container));
1535   g_return_if_fail (child != NULL);
1536   g_return_if_fail (GTK_IS_WIDGET (child));
1537
1538   bin = GTK_BIN (container);
1539   g_return_if_fail ((bin->child == child ||
1540                      (GTK_PIXMAP_MENU_ITEM(container)->pixmap == child)));
1541
1542   widget_was_visible = GTK_WIDGET_VISIBLE (child);
1543
1544   gtk_widget_unparent (child);
1545   if (bin->child == child)
1546     bin->child = NULL;
1547   else {
1548     GTK_PIXMAP_MENU_ITEM(container)->pixmap = NULL;
1549     changed_have_pixmap_status(GTK_PIXMAP_MENU_ITEM(container));
1550   }
1551
1552   if (widget_was_visible)
1553     gtk_widget_queue_resize (GTK_WIDGET (container));
1554 }
1555
1556
1557 /* important to only call this if there was actually a _change_ in pixmap == NULL */
1558 static void
1559 changed_have_pixmap_status (GtkPixmapMenuItem *menu_item)
1560 {
1561   if (menu_item->pixmap != NULL) {
1562     GTK_PIXMAP_MENU_ITEM_GET_CLASS(menu_item)->have_pixmap_count += 1;
1563
1564     if (GTK_PIXMAP_MENU_ITEM_GET_CLASS(menu_item)->have_pixmap_count == 1) {
1565       /* Install pixmap toggle size */
1566       GTK_MENU_ITEM_GET_CLASS(menu_item)->toggle_size = MAX(GTK_PIXMAP_MENU_ITEM_GET_CLASS(menu_item)->orig_toggle_size, PMAP_WIDTH);
1567     }
1568   } else {
1569     GTK_PIXMAP_MENU_ITEM_GET_CLASS(menu_item)->have_pixmap_count -= 1;
1570
1571     if (GTK_PIXMAP_MENU_ITEM_GET_CLASS(menu_item)->have_pixmap_count == 0) {
1572       /* Install normal toggle size */
1573       GTK_MENU_ITEM_GET_CLASS(menu_item)->toggle_size = GTK_PIXMAP_MENU_ITEM_GET_CLASS(menu_item)->orig_toggle_size;
1574     }
1575   }
1576
1577   /* Note that we actually need to do this for _all_ GtkPixmapMenuItem
1578      whenever the klass->toggle_size changes; but by doing it anytime
1579      this function is called, we get the same effect, just because of
1580      how the preferences option to show pixmaps works. Bogus, broken.
1581   */
1582   if (GTK_WIDGET_VISIBLE(GTK_WIDGET(menu_item)))
1583     gtk_widget_queue_resize(GTK_WIDGET(menu_item));
1584 }
1585
1586