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 bool wxMenuItem::IsChecked() const
 212 {
 213   wxCHECK( IsCheckable(), FALSE ); // can't get state of uncheckable item!
 214
 215   bool bIsChecked = ((GtkCheckMenuItem*)m_menuItem)->active != 0;
 216
 217   wxASSERT( bIsChecked == m_isChecked ); // consistency check
 218
 219   return bIsChecked;
 220 }
 221
 222 IMPLEMENT_DYNAMIC_CLASS(wxMenu,wxEvtHandler)
 223
 224 wxMenu::wxMenu( const wxString& title, const wxFunction func )
 225 {
 226   m_title = title;
 227   m_items.DeleteContents( TRUE );
 228   m_invokingWindow = NULL;
 229   m_menu = gtk_menu_new();  // Do not show!
 230   m_callback = func;
 231   m_eventHandler = this;
 232   if (m_title.IsNull()) m_title = "";
 233   if (m_title != "")
 234   {
 235     Append(-2, m_title);
 236     AppendSeparator();
 237   }
 238 }
 239
 240 void wxMenu::AppendSeparator()
 241 {
 242   wxMenuItem *mitem = new wxMenuItem();
 243   mitem->SetId(ID_SEPARATOR);
 244
 245   GtkWidget *menuItem = gtk_menu_item_new();
 246   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 247   gtk_widget_show( menuItem );
 248   mitem->SetMenuItem(menuItem);
 249   m_items.Append( mitem );
 250 }
 251
 252 void wxMenu::Append( int id, const wxString &item, const wxString &helpStr, bool checkable )
 253 {
 254   wxMenuItem *mitem = new wxMenuItem();
 255   mitem->SetId(id);
 256   mitem->SetText(item);
 257   mitem->SetHelp(helpStr);
 258   mitem->SetCheckable(checkable);
 259   const char *text = mitem->GetText();
 260   GtkWidget *menuItem = checkable ? gtk_check_menu_item_new_with_label(text)
 261                                   : gtk_menu_item_new_with_label(text);
 262   mitem->SetMenuItem(menuItem);
 263
 264   gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
 265                       GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),
 266                       (gpointer*)this );
 267
 268   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 269   gtk_widget_show( menuItem );
 270   m_items.Append( mitem );
 271 }
 272
 273 void wxMenu::Append( int id, const wxString &text, wxMenu *subMenu, const wxString &helpStr )
 274 {
 275   wxMenuItem *mitem = new wxMenuItem();
 276   mitem->SetId(id);
 277   mitem->SetText(text);
 278
 279   GtkWidget *menuItem = gtk_menu_item_new_with_label(mitem->GetText());
 280   mitem->SetHelp(helpStr);
 281   mitem->SetMenuItem(menuItem);
 282   mitem->SetSubMenu(subMenu);
 283
 284   gtk_menu_item_set_submenu( GTK_MENU_ITEM(menuItem), subMenu->m_menu );
 285   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 286   gtk_widget_show( menuItem );
 287   m_items.Append( mitem );
 288 }
 289
 290 int wxMenu::FindItem( const wxString itemString ) const
 291 {
 292   wxString s( itemString );
 293
 294   int pos;
 295   do {
 296     pos = s.First( '&' );
 297     if (pos != -1) s.Remove( pos, 1 );
 298   } while (pos != -1);
 299
 300   wxNode *node = m_items.First();
 301   while (node)
 302   {
 303     wxMenuItem *item = (wxMenuItem*)node->Data();
 304     if (item->GetText() == s)
 305       return item->GetId();
 306     node = node->Next();
 307   }
 308
 309   return -1;
 310 }
 311
 312 void wxMenu::Enable( int id, bool enable )
 313 {
 314   wxMenuItem *item = FindItem(id);
 315   if ( item )
 316     item->Enable(enable);
 317 }
 318
 319 bool wxMenu::IsEnabled( int id ) const
 320 {
 321   wxMenuItem *item = FindItem(id);
 322   if ( item )
 323     return item->IsEnabled();
 324   else
 325     return FALSE;
 326 }
 327
 328 void wxMenu::Check( int id, bool enable )
 329 {
 330   wxMenuItem *item = FindItem(id);
 331   if ( item )
 332     item->Check(enable);
 333 }
 334
 335 bool wxMenu::IsChecked( int id ) const
 336 {
 337   wxMenuItem *item = FindItem(id);
 338   if ( item )
 339     return item->IsChecked();
 340   else
 341     return FALSE;
 342 }
 343
 344 void wxMenu::SetLabel( int id, const wxString &label )
 345 {
 346   wxMenuItem *item = FindItem(id);
 347   if (item)
 348     item->SetText(label);
 349 }
 350
 351 wxString wxMenu::GetLabel( int id ) const
 352 {
 353   wxMenuItem *item = FindItem(id);
 354   if (item) return item->GetText();
 355   return "";
 356 }
 357
 358 void wxMenu::SetHelpString( int id, const wxString& helpString )
 359 {
 360   wxMenuItem *item = FindItem(id);
 361   if (item) item->SetHelp( helpString );
 362 }
 363
 364 wxString wxMenu::GetHelpString( int id ) const
 365 {
 366   wxMenuItem *item = FindItem(id);
 367   if (item) return item->GetHelp();
 368   return "";
 369 }
 370
 371 int wxMenu::FindMenuIdByMenuItem( GtkWidget *menuItem ) const
 372 {
 373   wxNode *node = m_items.First();
 374   while (node)
 375   {
 376     wxMenuItem *item = (wxMenuItem*)node->Data();
 377     if (item->GetMenuItem() == menuItem)
 378       return item->GetId();
 379     node = node->Next();
 380   }
 381
 382   return -1;
 383 }
 384
 385 wxMenuItem *wxMenu::FindItem(int id) const
 386 {
 387   wxNode *node = m_items.First();
 388   while (node) {
 389     wxMenuItem *item = (wxMenuItem*)node->Data();
 390     if ( item->GetId() == id )
 391       return item;
 392     node = node->Next();
 393   }
 394
 395   wxLogDebug(_("wxMenu::FindItem: item %d not found."), id);
 396
 397   return NULL;
 398 }
 399
 400 void wxMenu::SetInvokingWindow( wxWindow *win )
 401 {
 402   m_invokingWindow = win;
 403 }
 404
 405 wxWindow *wxMenu::GetInvokingWindow()
 406 {
 407   return m_invokingWindow;
 408 }
 409
 410