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
  19 //-----------------------------------------------------------------------------
  20 // wxMenuBar
  21 //-----------------------------------------------------------------------------
  22
  23 IMPLEMENT_DYNAMIC_CLASS(wxMenuBar,wxWindow)
  24
  25 wxMenuBar::wxMenuBar()
  26 {
  27   m_needParent = FALSE; // hmmm
  28
  29   PreCreation( NULL, -1, wxDefaultPosition, wxDefaultSize, 0, "menu" );
  30
  31   m_menus.DeleteContents( TRUE );
  32
  33   m_widget = gtk_handle_box_new();
  34
  35   m_menubar = gtk_menu_bar_new();
  36
  37   gtk_container_add( GTK_CONTAINER(m_widget), m_menubar );
  38
  39   gtk_widget_show( m_menubar );
  40
  41   PostCreation();
  42
  43   Show( TRUE );
  44 };
  45
  46 void wxMenuBar::Append( wxMenu *menu, const wxString &title )
  47 {
  48   m_menus.Append( menu );
  49   menu->m_title = title;    // ??????
  50
  51   int pos;
  52   do {
  53     pos = menu->m_title.First( '&' );
  54     if (pos != -1) menu->m_title.Remove( pos, 1 );
  55   } while (pos != -1);
  56
  57   GtkWidget *root_menu;
  58   root_menu = gtk_menu_item_new_with_label( WXSTRINGCAST(menu->m_title) );
  59   gtk_widget_show( root_menu );
  60   gtk_menu_item_set_submenu( GTK_MENU_ITEM(root_menu), menu->m_menu );
  61
  62   gtk_menu_bar_append( GTK_MENU_BAR(m_menubar), root_menu );
  63 };
  64
  65 static int FindMenuItemRecursive( const wxMenu *menu, const wxString &menuString, const wxString &itemString )
  66 {
  67   if (menu->m_title == menuString)
  68   {
  69     int res = menu->FindItem( itemString );
  70     if (res != -1) return res;
  71   };
  72   wxNode *node = menu->m_items.First();
  73   while (node)
  74   {
  75     wxMenuItem *item = (wxMenuItem*)node->Data();
  76     if (item->IsSubMenu())
  77       return FindMenuItemRecursive(item->GetSubMenu(), menuString, itemString);
  78     node = node->Next();
  79   };
  80   return -1;
  81 };
  82
  83 int wxMenuBar::FindMenuItem( const wxString &menuString, const wxString &itemString ) const
  84 {
  85   wxNode *node = m_menus.First();
  86   while (node)
  87   {
  88     wxMenu *menu = (wxMenu*)node->Data();
  89     int res = FindMenuItemRecursive( menu, menuString, itemString);
  90     if (res != -1) return res;
  91     node = node->Next();
  92   };
  93   return -1;
  94 };
  95
  96 // Find a wxMenuItem using its id. Recurses down into sub-menus
  97 static wxMenuItem* FindMenuItemByIdRecursive(const wxMenu* menu, int id)
  98 {
  99   wxMenuItem* result = menu->FindItem(id);
 100
 101   wxNode *node = menu->m_items.First();
 102   while ( node && result == NULL ) {
 103     wxMenuItem *item = (wxMenuItem*)node->Data();
 104     if ( item->IsSubMenu() )
 105       result = FindMenuItemByIdRecursive( item->GetSubMenu(), id );
 106     node = node->Next();
 107   };
 108
 109   return result;
 110 };
 111
 112 wxMenuItem* wxMenuBar::FindMenuItemById( int id ) const
 113 {
 114   wxMenuItem* result = 0;
 115   wxNode *node = m_menus.First();
 116   while (node && result == 0)
 117   {
 118     wxMenu *menu = (wxMenu*)node->Data();
 119     result = FindMenuItemByIdRecursive( menu, id );
 120     node = node->Next();
 121   }
 122   return result;
 123 }
 124
 125 bool wxMenuBar::IsChecked( int id ) const
 126 {
 127   wxMenuItem* item = FindMenuItemById( id );
 128   if (item) return item->IsChecked();
 129   return FALSE;
 130 }
 131
 132 bool wxMenuBar::IsEnabled( int id ) const
 133 {
 134   wxMenuItem* item = FindMenuItemById( id );
 135   if (item) return item->IsEnabled();
 136   return FALSE;
 137 }
 138
 139 //-----------------------------------------------------------------------------
 140 // wxMenu
 141 //-----------------------------------------------------------------------------
 142
 143 void gtk_menu_clicked_callback( GtkWidget *widget, gpointer data )
 144 {
 145   wxMenu *menu = (wxMenu*)data;
 146   int id = menu->FindMenuIdByMenuItem(widget);
 147
 148   wxASSERT( id != -1 ); // should find it!
 149
 150   if (!menu->IsEnabled(id))
 151     return;
 152
 153   wxCommandEvent event( wxEVENT_TYPE_MENU_COMMAND, id );
 154   event.SetEventObject( menu );
 155   event.SetInt(id );
 156   wxWindow *win = menu->GetInvokingWindow();
 157   if (win) win->GetEventHandler()->ProcessEvent( event );
 158 };
 159
 160 IMPLEMENT_DYNAMIC_CLASS(wxMenuItem,wxObject)
 161
 162 wxMenuItem::wxMenuItem()
 163 {
 164   m_id = ID_SEPARATOR;
 165   m_isCheckMenu = FALSE;
 166   m_isChecked = FALSE;
 167   m_isEnabled = TRUE;
 168   m_subMenu = NULL;
 169   m_menuItem = NULL;
 170 };
 171
 172 void wxMenuItem::SetText(const wxString& str)
 173 {
 174   for ( const char *pc = str; *pc != '\0'; pc++ ) {
 175     if ( *pc == '&' )
 176       pc++; // skip it
 177
 178     m_text << *pc;
 179   }
 180 }
 181
 182 void wxMenuItem::Check( bool check )
 183 {
 184   wxCHECK_RET( IsCheckable(), "can't check uncheckable item!" )
 185
 186   m_isChecked = check;
 187   gtk_check_menu_item_set_state( (GtkCheckMenuItem*)m_menuItem, (gint)check );
 188 }
 189
 190 bool wxMenuItem::IsChecked() const
 191 {
 192   wxCHECK( IsCheckable(), FALSE ); // can't get state of uncheckable item!
 193
 194   bool bIsChecked = ((GtkCheckMenuItem*)m_menuItem)->active != 0;
 195
 196   wxASSERT( bIsChecked == m_isChecked ); // consistency check
 197
 198   return bIsChecked;
 199 }
 200
 201 IMPLEMENT_DYNAMIC_CLASS(wxMenu,wxEvtHandler)
 202
 203 wxMenu::wxMenu( const wxString &title )
 204 {
 205   m_title = title;
 206   m_items.DeleteContents( TRUE );
 207   m_invokingWindow = NULL;
 208   m_menu = gtk_menu_new();  // Do not show!
 209 };
 210
 211 void wxMenu::AppendSeparator()
 212 {
 213   wxMenuItem *mitem = new wxMenuItem();
 214   mitem->SetId(ID_SEPARATOR);
 215
 216   GtkWidget *menuItem = gtk_menu_item_new();
 217   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 218   gtk_widget_show( menuItem );
 219   mitem->SetMenuItem(menuItem);
 220   m_items.Append( mitem );
 221 };
 222
 223 void wxMenu::Append( int id, const wxString &item, const wxString &helpStr, bool checkable )
 224 {
 225   wxMenuItem *mitem = new wxMenuItem();
 226   mitem->SetId(id);
 227   mitem->SetText(item);
 228   mitem->SetHelpString(helpStr);
 229   mitem->SetCheckable(checkable);
 230   const char *text = mitem->GetText();
 231   GtkWidget *menuItem = checkable ? gtk_check_menu_item_new_with_label(text)
 232                                   : gtk_menu_item_new_with_label(text);
 233   mitem->SetMenuItem(menuItem);
 234
 235   gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
 236                       GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),
 237                       (gpointer*)this );
 238
 239   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 240   gtk_widget_show( menuItem );
 241   m_items.Append( mitem );
 242 };
 243
 244 void wxMenu::Append( int id, const wxString &text, wxMenu *subMenu, const wxString &helpStr )
 245 {
 246   wxMenuItem *mitem = new wxMenuItem();
 247   mitem->SetId(id);
 248   mitem->SetText(text);
 249
 250   GtkWidget *menuItem = gtk_menu_item_new_with_label(mitem->GetText());
 251   mitem->SetHelpString(helpStr);
 252   mitem->SetMenuItem(menuItem);
 253   mitem->SetSubMenu(subMenu);
 254
 255   gtk_menu_item_set_submenu( GTK_MENU_ITEM(menuItem), subMenu->m_menu );
 256   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 257   gtk_widget_show( menuItem );
 258   m_items.Append( mitem );
 259 };
 260
 261 int wxMenu::FindItem( const wxString itemString ) const
 262 {
 263   wxString s( itemString );
 264
 265   int pos;
 266   do {
 267     pos = s.First( '&' );
 268     if (pos != -1) s.Remove( pos, 1 );
 269   } while (pos != -1);
 270
 271   wxNode *node = m_items.First();
 272   while (node)
 273   {
 274     wxMenuItem *item = (wxMenuItem*)node->Data();
 275     if (item->GetText() == s)
 276       return item->GetId();
 277     node = node->Next();
 278   };
 279
 280   return -1;
 281 };
 282
 283 void wxMenu::Enable( int id, bool enable )
 284 {
 285   wxMenuItem *item = FindItem(id);
 286   if ( item )
 287     item->Enable(enable);
 288 };
 289
 290 bool wxMenu::IsEnabled( int id ) const
 291 {
 292   wxMenuItem *item = FindItem(id);
 293   if ( item )
 294     return item->IsEnabled();
 295   else
 296     return FALSE;
 297 };
 298
 299 void wxMenu::Check( int id, bool enable )
 300 {
 301   wxMenuItem *item = FindItem(id);
 302   if ( item )
 303     item->Check(enable);
 304 };
 305
 306 bool wxMenu::IsChecked( int id ) const
 307 {
 308   wxMenuItem *item = FindItem(id);
 309   if ( item )
 310     return item->IsChecked();
 311   else
 312     return FALSE;
 313 };
 314
 315 void wxMenu::SetLabel( int id, const wxString &label )
 316 {
 317   wxMenuItem *item = FindItem(id);
 318   if ( item )
 319     item->SetText(label);
 320 };
 321
 322 int wxMenu::FindMenuIdByMenuItem( GtkWidget *menuItem ) const
 323 {
 324   wxNode *node = m_items.First();
 325   while (node)
 326   {
 327     wxMenuItem *item = (wxMenuItem*)node->Data();
 328     if (item->GetMenuItem() == menuItem)
 329       return item->GetId();
 330     node = node->Next();
 331   };
 332
 333   return -1;
 334 };
 335
 336 wxMenuItem *wxMenu::FindItem(int id) const
 337 {
 338   wxNode *node = m_items.First();
 339   while (node) {
 340     wxMenuItem *item = (wxMenuItem*)node->Data();
 341     if ( item->GetId() == id )
 342       return item;
 343     node = node->Next();
 344   };
 345
 346   wxLogDebug("wxMenu::FindItem: item %d not found.", id);
 347
 348   return NULL;
 349 }
 350
 351 void wxMenu::SetInvokingWindow( wxWindow *win )
 352 {
 353   m_invokingWindow = win;
 354 };
 355
 356 wxWindow *wxMenu::GetInvokingWindow()
 357 {
 358   return m_invokingWindow;
 359 };
 360
 361