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::AppendSeparator()
 247 {
 248   wxMenuItem *mitem = new wxMenuItem();
 249   mitem->SetId(ID_SEPARATOR);
 250
 251   GtkWidget *menuItem = gtk_menu_item_new();
 252   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 253   gtk_widget_show( menuItem );
 254   mitem->SetMenuItem(menuItem);
 255   m_items.Append( mitem );
 256 }
 257
 258 void wxMenu::Append( int id, const wxString &item, const wxString &helpStr, bool checkable )
 259 {
 260   wxMenuItem *mitem = new wxMenuItem();
 261   mitem->SetId(id);
 262   mitem->SetText(item);
 263   mitem->SetHelp(helpStr);
 264   mitem->SetCheckable(checkable);
 265   const char *text = mitem->GetText();
 266   GtkWidget *menuItem = checkable ? gtk_check_menu_item_new_with_label(text)
 267                                   : gtk_menu_item_new_with_label(text);
 268
 269   mitem->SetMenuItem(menuItem);
 270
 271   gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
 272                       GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),
 273                       (gpointer*)this );
 274
 275   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 276   gtk_widget_show( menuItem );
 277   m_items.Append( mitem );
 278 }
 279
 280 void wxMenu::Append( int id, const wxString &text, wxMenu *subMenu, const wxString &helpStr )
 281 {
 282   wxMenuItem *mitem = new wxMenuItem();
 283   mitem->SetId(id);
 284   mitem->SetText(text);
 285
 286   GtkWidget *menuItem = gtk_menu_item_new_with_label(mitem->GetText());
 287   mitem->SetHelp(helpStr);
 288   mitem->SetMenuItem(menuItem);
 289   mitem->SetSubMenu(subMenu);
 290
 291   gtk_menu_item_set_submenu( GTK_MENU_ITEM(menuItem), subMenu->m_menu );
 292   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 293   gtk_widget_show( menuItem );
 294   m_items.Append( mitem );
 295 }
 296
 297 int wxMenu::FindItem( const wxString itemString ) const
 298 {
 299   wxString s( itemString );
 300
 301   int pos;
 302   do {
 303     pos = s.First( '&' );
 304     if (pos != -1) s.Remove( pos, 1 );
 305   } while (pos != -1);
 306
 307   wxNode *node = m_items.First();
 308   while (node)
 309   {
 310     wxMenuItem *item = (wxMenuItem*)node->Data();
 311     if (item->GetText() == s)
 312       return item->GetId();
 313     node = node->Next();
 314   }
 315
 316   return -1;
 317 }
 318
 319 void wxMenu::Enable( int id, bool enable )
 320 {
 321   wxMenuItem *item = FindItem(id);
 322   if ( item )
 323     item->Enable(enable);
 324 }
 325
 326 bool wxMenu::IsEnabled( int id ) const
 327 {
 328   wxMenuItem *item = FindItem(id);
 329   if ( item )
 330     return item->IsEnabled();
 331   else
 332     return FALSE;
 333 }
 334
 335 void wxMenu::Check( int id, bool enable )
 336 {
 337   wxMenuItem *item = FindItem(id);
 338   if ( item )
 339     item->Check(enable);
 340 }
 341
 342 bool wxMenu::IsChecked( int id ) const
 343 {
 344   wxMenuItem *item = FindItem(id);
 345   if ( item )
 346     return item->IsChecked();
 347   else
 348     return FALSE;
 349 }
 350
 351 void wxMenu::SetLabel( int id, const wxString &label )
 352 {
 353   wxMenuItem *item = FindItem(id);
 354   if (item)
 355     item->SetText(label);
 356 }
 357
 358 wxString wxMenu::GetLabel( int id ) const
 359 {
 360   wxMenuItem *item = FindItem(id);
 361   if (item) return item->GetText();
 362   return "";
 363 }
 364
 365 void wxMenu::SetHelpString( int id, const wxString& helpString )
 366 {
 367   wxMenuItem *item = FindItem(id);
 368   if (item) item->SetHelp( helpString );
 369 }
 370
 371 wxString wxMenu::GetHelpString( int id ) const
 372 {
 373   wxMenuItem *item = FindItem(id);
 374   if (item) return item->GetHelp();
 375   return "";
 376 }
 377
 378 int wxMenu::FindMenuIdByMenuItem( GtkWidget *menuItem ) const
 379 {
 380   wxNode *node = m_items.First();
 381   while (node)
 382   {
 383     wxMenuItem *item = (wxMenuItem*)node->Data();
 384     if (item->GetMenuItem() == menuItem)
 385       return item->GetId();
 386     node = node->Next();
 387   }
 388
 389   return -1;
 390 }
 391
 392 wxMenuItem *wxMenu::FindItem(int id) const
 393 {
 394   wxNode *node = m_items.First();
 395   while (node) {
 396     wxMenuItem *item = (wxMenuItem*)node->Data();
 397     if ( item->GetId() == id )
 398       return item;
 399     node = node->Next();
 400   }
 401
 402   wxLogDebug(_("wxMenu::FindItem: item %d not found."), id);
 403
 404   return NULL;
 405 }
 406
 407 void wxMenu::SetInvokingWindow( wxWindow *win )
 408 {
 409   m_invokingWindow = win;
 410 }
 411
 412 wxWindow *wxMenu::GetInvokingWindow()
 413 {
 414   return m_invokingWindow;
 415 }
 416
 417