src/gtk/menu.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        menu.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Created:     01/02/97
   6 // Id:          $Id$
   7 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "menu.h"
  14 #endif
  15
  16 #include "wx/menu.h"
  17 #include "wx/log.h"
  18 #include "wx/intl.h"
  19
  20 //-----------------------------------------------------------------------------
  21 // wxMenuBar
  22 //-----------------------------------------------------------------------------
  23
  24 IMPLEMENT_DYNAMIC_CLASS(wxMenuBar,wxWindow)
  25
  26 wxMenuBar::wxMenuBar()
  27 {
  28   m_needParent = FALSE; // hmmm
  29
  30   PreCreation( NULL, -1, wxDefaultPosition, wxDefaultSize, 0, "menu" );
  31
  32   m_menus.DeleteContents( TRUE );
  33
  34   m_widget = gtk_handle_box_new();
  35
  36   m_menubar = gtk_menu_bar_new();
  37
  38   gtk_container_add( GTK_CONTAINER(m_widget), m_menubar );
  39
  40   gtk_widget_show( m_menubar );
  41
  42   PostCreation();
  43
  44   Show( TRUE );
  45 }
  46
  47 void wxMenuBar::Append( wxMenu *menu, const wxString &title )
  48 {
  49   m_menus.Append( menu );
  50   menu->m_title = title;    // ??????
  51
  52   int pos;
  53   do {
  54     pos = menu->m_title.First( '&' );
  55     if (pos != -1) menu->m_title.Remove( pos, 1 );
  56   } while (pos != -1);
  57
  58   GtkWidget *root_menu;
  59   root_menu = gtk_menu_item_new_with_label( WXSTRINGCAST(menu->m_title) );
  60   gtk_widget_show( root_menu );
  61   gtk_menu_item_set_submenu( GTK_MENU_ITEM(root_menu), menu->m_menu );
  62
  63   gtk_menu_bar_append( GTK_MENU_BAR(m_menubar), root_menu );
  64 }
  65
  66 static int FindMenuItemRecursive( const wxMenu *menu, const wxString &menuString, const wxString &itemString )
  67 {
  68   if (menu->m_title == menuString)
  69   {
  70     int res = menu->FindItem( itemString );
  71     if (res != -1) return res;
  72   }
  73   wxNode *node = menu->m_items.First();
  74   while (node)
  75   {
  76     wxMenuItem *item = (wxMenuItem*)node->Data();
  77     if (item->IsSubMenu())
  78       return FindMenuItemRecursive(item->GetSubMenu(), menuString, itemString);
  79     node = node->Next();
  80   }
  81   return -1;
  82 }
  83
  84 int wxMenuBar::FindMenuItem( const wxString &menuString, const wxString &itemString ) const
  85 {
  86   wxNode *node = m_menus.First();
  87   while (node)
  88   {
  89     wxMenu *menu = (wxMenu*)node->Data();
  90     int res = FindMenuItemRecursive( menu, menuString, itemString);
  91     if (res != -1) return res;
  92     node = node->Next();
  93   }
  94   return -1;
  95 }
  96
  97 // Find a wxMenuItem using its id. Recurses down into sub-menus
  98 static wxMenuItem* FindMenuItemByIdRecursive(const wxMenu* menu, int id)
  99 {
 100   wxMenuItem* result = menu->FindItem(id);
 101
 102   wxNode *node = menu->m_items.First();
 103   while ( node && result == NULL ) {
 104     wxMenuItem *item = (wxMenuItem*)node->Data();
 105     if ( item->IsSubMenu() )
 106       result = FindMenuItemByIdRecursive( item->GetSubMenu(), id );
 107     node = node->Next();
 108   }
 109
 110   return result;
 111 }
 112
 113 wxMenuItem* wxMenuBar::FindMenuItemById( int id ) const
 114 {
 115   wxMenuItem* result = 0;
 116   wxNode *node = m_menus.First();
 117   while (node && result == 0)
 118   {
 119     wxMenu *menu = (wxMenu*)node->Data();
 120     result = FindMenuItemByIdRecursive( menu, id );
 121     node = node->Next();
 122   }
 123   return result;
 124 }
 125
 126 void wxMenuBar::Check( int id, bool check )
 127 {
 128   wxMenuItem* item = FindMenuItemById( id );
 129   if (item) item->Check(check);
 130 }
 131
 132 bool wxMenuBar::Checked( int id ) const
 133 {
 134   wxMenuItem* item = FindMenuItemById( id );
 135   if (item) return item->IsChecked();
 136   return FALSE;
 137 }
 138
 139 void wxMenuBar::Enable( int id, bool enable )
 140 {
 141   wxMenuItem* item = FindMenuItemById( id );
 142   if (item) item->Enable(enable);
 143 }
 144
 145 bool wxMenuBar::Enabled( int id ) const
 146 {
 147   wxMenuItem* item = FindMenuItemById( id );
 148   if (item) return item->IsEnabled();
 149   return FALSE;
 150 }
 151
 152 //-----------------------------------------------------------------------------
 153 // wxMenu
 154 //-----------------------------------------------------------------------------
 155
 156 static void gtk_menu_clicked_callback( GtkWidget *widget, wxMenu *menu )
 157 {
 158   int id = menu->FindMenuIdByMenuItem(widget);
 159
 160   wxASSERT( id != -1 ); // should find it!
 161
 162   if (!menu->IsEnabled(id)) return;
 163
 164   wxCommandEvent event( wxEVENT_TYPE_MENU_COMMAND, id );
 165   event.SetEventObject( menu );
 166   event.SetInt(id );
 167
 168   if (menu->m_callback)
 169   {
 170      (void) (*(menu->m_callback)) (*menu, event);
 171      return;
 172   }
 173
 174   if (menu->GetEventHandler()->ProcessEvent(event)) return;
 175
 176   wxWindow *win = menu->GetInvokingWindow();
 177   if (win) win->GetEventHandler()->ProcessEvent( event );
 178 }
 179
 180 IMPLEMENT_DYNAMIC_CLASS(wxMenuItem,wxObject)
 181
 182 wxMenuItem::wxMenuItem()
 183 {
 184   m_id = ID_SEPARATOR;
 185   m_isCheckMenu = FALSE;
 186   m_isChecked = FALSE;
 187   m_isEnabled = TRUE;
 188   m_subMenu = NULL;
 189   m_menuItem = NULL;
 190 }
 191
 192 void wxMenuItem::SetText(const wxString& str)
 193 {
 194   m_text = "";
 195   for ( const char *pc = str; *pc != '\0'; pc++ ) {
 196     if ( *pc == '&' )
 197       pc++; // skip it
 198
 199     m_text << *pc;
 200   }
 201 }
 202
 203 void wxMenuItem::Check( bool check )
 204 {
 205   wxCHECK_RET( IsCheckable(), _("Can't check uncheckable item!") )
 206
 207   m_isChecked = check;
 208   gtk_check_menu_item_set_state( (GtkCheckMenuItem*)m_menuItem, (gint)check );
 209 }
 210
 211 void wxMenuItem::Enable( bool enable )
 212 {
 213   gtk_widget_set_sensitive( m_menuItem, enable );
 214   m_isEnabled = enable;
 215 }
 216
 217 bool wxMenuItem::IsChecked() const
 218 {
 219   wxCHECK( IsCheckable(), FALSE ); // can't get state of uncheckable item!
 220
 221   bool bIsChecked = ((GtkCheckMenuItem*)m_menuItem)->active != 0;
 222
 223   wxASSERT( bIsChecked == m_isChecked ); // consistency check
 224
 225   return bIsChecked;
 226 }
 227
 228 IMPLEMENT_DYNAMIC_CLASS(wxMenu,wxEvtHandler)
 229
 230 wxMenu::wxMenu( const wxString& title, const wxFunction func )
 231 {
 232   m_title = title;
 233   m_items.DeleteContents( TRUE );
 234   m_invokingWindow = NULL;
 235   m_menu = gtk_menu_new();  // Do not show!
 236   m_callback = func;
 237   m_eventHandler = this;
 238   if (m_title.IsNull()) m_title = "";
 239   if (m_title != "")
 240   {
 241     Append(-2, m_title);
 242     AppendSeparator();
 243   }
 244 }
 245
 246 void wxMenu::SetTitle( const wxString& title )
 247 {
 248   // Waiting for something better.
 249   m_title = title;
 250 }
 251
 252 const wxString wxMenu::GetTitle() const
 253 {
 254   return m_title;
 255 }
 256
 257 void wxMenu::AppendSeparator()
 258 {
 259   wxMenuItem *mitem = new wxMenuItem();
 260   mitem->SetId(ID_SEPARATOR);
 261
 262   GtkWidget *menuItem = gtk_menu_item_new();
 263   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 264   gtk_widget_show( menuItem );
 265   mitem->SetMenuItem(menuItem);
 266   m_items.Append( mitem );
 267 }
 268
 269 void wxMenu::Append( int id, const wxString &item, const wxString &helpStr, bool checkable )
 270 {
 271   wxMenuItem *mitem = new wxMenuItem();
 272   mitem->SetId(id);
 273   mitem->SetText(item);
 274   mitem->SetHelp(helpStr);
 275   mitem->SetCheckable(checkable);
 276   const char *text = mitem->GetText();
 277   GtkWidget *menuItem = checkable ? gtk_check_menu_item_new_with_label(text)
 278                                   : gtk_menu_item_new_with_label(text);
 279
 280   mitem->SetMenuItem(menuItem);
 281
 282   gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
 283                       GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),
 284                       (gpointer*)this );
 285
 286   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 287   gtk_widget_show( menuItem );
 288   m_items.Append( mitem );
 289 }
 290
 291 void wxMenu::Append( int id, const wxString &text, wxMenu *subMenu, const wxString &helpStr )
 292 {
 293   wxMenuItem *mitem = new wxMenuItem();
 294   mitem->SetId(id);
 295   mitem->SetText(text);
 296
 297   GtkWidget *menuItem = gtk_menu_item_new_with_label(mitem->GetText());
 298   mitem->SetHelp(helpStr);
 299   mitem->SetMenuItem(menuItem);
 300   mitem->SetSubMenu(subMenu);
 301
 302   gtk_menu_item_set_submenu( GTK_MENU_ITEM(menuItem), subMenu->m_menu );
 303   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 304   gtk_widget_show( menuItem );
 305   m_items.Append( mitem );
 306 }
 307
 308 int wxMenu::FindItem( const wxString itemString ) const
 309 {
 310   wxString s( itemString );
 311
 312   int pos;
 313   do {
 314     pos = s.First( '&' );
 315     if (pos != -1) s.Remove( pos, 1 );
 316   } while (pos != -1);
 317
 318   wxNode *node = m_items.First();
 319   while (node)
 320   {
 321     wxMenuItem *item = (wxMenuItem*)node->Data();
 322     if (item->GetText() == s)
 323       return item->GetId();
 324     node = node->Next();
 325   }
 326
 327   return -1;
 328 }
 329
 330 void wxMenu::Enable( int id, bool enable )
 331 {
 332   wxMenuItem *item = FindItem(id);
 333   if ( item )
 334     item->Enable(enable);
 335 }
 336
 337 bool wxMenu::IsEnabled( int id ) const
 338 {
 339   wxMenuItem *item = FindItem(id);
 340   if ( item )
 341     return item->IsEnabled();
 342   else
 343     return FALSE;
 344 }
 345
 346 void wxMenu::Check( int id, bool enable )
 347 {
 348   wxMenuItem *item = FindItem(id);
 349   if ( item )
 350     item->Check(enable);
 351 }
 352
 353 bool wxMenu::IsChecked( int id ) const
 354 {
 355   wxMenuItem *item = FindItem(id);
 356   if ( item )
 357     return item->IsChecked();
 358   else
 359     return FALSE;
 360 }
 361
 362 void wxMenu::SetLabel( int id, const wxString &label )
 363 {
 364   wxMenuItem *item = FindItem(id);
 365   if (item)
 366     item->SetText(label);
 367 }
 368
 369 wxString wxMenu::GetLabel( int id ) const
 370 {
 371   wxMenuItem *item = FindItem(id);
 372   if (item) return item->GetText();
 373   return "";
 374 }
 375
 376 void wxMenu::SetHelpString( int id, const wxString& helpString )
 377 {
 378   wxMenuItem *item = FindItem(id);
 379   if (item) item->SetHelp( helpString );
 380 }
 381
 382 wxString wxMenu::GetHelpString( int id ) const
 383 {
 384   wxMenuItem *item = FindItem(id);
 385   if (item) return item->GetHelp();
 386   return "";
 387 }
 388
 389 int wxMenu::FindMenuIdByMenuItem( GtkWidget *menuItem ) const
 390 {
 391   wxNode *node = m_items.First();
 392   while (node)
 393   {
 394     wxMenuItem *item = (wxMenuItem*)node->Data();
 395     if (item->GetMenuItem() == menuItem)
 396       return item->GetId();
 397     node = node->Next();
 398   }
 399
 400   return -1;
 401 }
 402
 403 wxMenuItem *wxMenu::FindItem(int id) const
 404 {
 405   wxNode *node = m_items.First();
 406   while (node) {
 407     wxMenuItem *item = (wxMenuItem*)node->Data();
 408     if ( item->GetId() == id )
 409       return item;
 410     node = node->Next();
 411   }
 412
 413   wxLogDebug(_("wxMenu::FindItem: item %d not found."), id);
 414
 415   return NULL;
 416 }
 417
 418 void wxMenu::SetInvokingWindow( wxWindow *win )
 419 {
 420   m_invokingWindow = win;
 421 }
 422
 423 wxWindow *wxMenu::GetInvokingWindow()
 424 {
 425   return m_invokingWindow;
 426 }
 427
 428