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 void wxMenuBar::Check( int id, bool check )
 126 {
 127   wxMenuItem* item = FindMenuItemById( id );
 128   if (item) item->Check(check);
 129 };
 130
 131 bool wxMenuBar::Checked( int id ) const
 132 {
 133   wxMenuItem* item = FindMenuItemById( id );
 134   if (item) return item->IsChecked();
 135   return FALSE;
 136 };
 137
 138 void wxMenuBar::Enable( int id, bool enable )
 139 {
 140   wxMenuItem* item = FindMenuItemById( id );
 141   if (item) item->Enable(enable);
 142 };
 143
 144 bool wxMenuBar::Enabled( int id ) const
 145 {
 146   wxMenuItem* item = FindMenuItemById( id );
 147   if (item) return item->IsEnabled();
 148   return FALSE;
 149 };
 150
 151 //-----------------------------------------------------------------------------
 152 // wxMenu
 153 //-----------------------------------------------------------------------------
 154
 155 void gtk_menu_clicked_callback( GtkWidget *widget, gpointer data )
 156 {
 157   wxMenu *menu = (wxMenu*)data;
 158   int id = menu->FindMenuIdByMenuItem(widget);
 159
 160   wxASSERT( id != -1 ); // should find it!
 161
 162   if (!menu->IsEnabled(id))
 163     return;
 164
 165   wxCommandEvent event( wxEVENT_TYPE_MENU_COMMAND, id );
 166   event.SetEventObject( menu );
 167   event.SetInt(id );
 168   wxWindow *win = menu->GetInvokingWindow();
 169   if (win) win->GetEventHandler()->ProcessEvent( event );
 170 };
 171
 172 IMPLEMENT_DYNAMIC_CLASS(wxMenuItem,wxObject)
 173
 174 wxMenuItem::wxMenuItem()
 175 {
 176   m_id = ID_SEPARATOR;
 177   m_isCheckMenu = FALSE;
 178   m_isChecked = FALSE;
 179   m_isEnabled = TRUE;
 180   m_subMenu = NULL;
 181   m_menuItem = NULL;
 182 };
 183
 184 void wxMenuItem::SetText(const wxString& str)
 185 {
 186   for ( const char *pc = str; *pc != '\0'; pc++ ) {
 187     if ( *pc == '&' )
 188       pc++; // skip it
 189
 190     m_text << *pc;
 191   }
 192 }
 193
 194 void wxMenuItem::Check( bool check )
 195 {
 196   wxCHECK_RET( IsCheckable(), _("can't check uncheckable item!") )
 197
 198   m_isChecked = check;
 199   gtk_check_menu_item_set_state( (GtkCheckMenuItem*)m_menuItem, (gint)check );
 200 }
 201
 202 bool wxMenuItem::IsChecked() const
 203 {
 204   wxCHECK( IsCheckable(), FALSE ); // can't get state of uncheckable item!
 205
 206   bool bIsChecked = ((GtkCheckMenuItem*)m_menuItem)->active != 0;
 207
 208   wxASSERT( bIsChecked == m_isChecked ); // consistency check
 209
 210   return bIsChecked;
 211 }
 212
 213 IMPLEMENT_DYNAMIC_CLASS(wxMenu,wxEvtHandler)
 214
 215 wxMenu::wxMenu( const wxString &title )
 216 {
 217   m_title = title;
 218   m_items.DeleteContents( TRUE );
 219   m_invokingWindow = NULL;
 220   m_menu = gtk_menu_new();  // Do not show!
 221 };
 222
 223 void wxMenu::AppendSeparator()
 224 {
 225   wxMenuItem *mitem = new wxMenuItem();
 226   mitem->SetId(ID_SEPARATOR);
 227
 228   GtkWidget *menuItem = gtk_menu_item_new();
 229   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 230   gtk_widget_show( menuItem );
 231   mitem->SetMenuItem(menuItem);
 232   m_items.Append( mitem );
 233 };
 234
 235 void wxMenu::Append( int id, const wxString &item, const wxString &helpStr, bool checkable )
 236 {
 237   wxMenuItem *mitem = new wxMenuItem();
 238   mitem->SetId(id);
 239   mitem->SetText(item);
 240   mitem->SetHelpString(helpStr);
 241   mitem->SetCheckable(checkable);
 242   const char *text = mitem->GetText();
 243   GtkWidget *menuItem = checkable ? gtk_check_menu_item_new_with_label(text)
 244                                   : gtk_menu_item_new_with_label(text);
 245   mitem->SetMenuItem(menuItem);
 246
 247   gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
 248                       GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),
 249                       (gpointer*)this );
 250
 251   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 252   gtk_widget_show( menuItem );
 253   m_items.Append( mitem );
 254 };
 255
 256 void wxMenu::Append( int id, const wxString &text, wxMenu *subMenu, const wxString &helpStr )
 257 {
 258   wxMenuItem *mitem = new wxMenuItem();
 259   mitem->SetId(id);
 260   mitem->SetText(text);
 261
 262   GtkWidget *menuItem = gtk_menu_item_new_with_label(mitem->GetText());
 263   mitem->SetHelpString(helpStr);
 264   mitem->SetMenuItem(menuItem);
 265   mitem->SetSubMenu(subMenu);
 266
 267   gtk_menu_item_set_submenu( GTK_MENU_ITEM(menuItem), subMenu->m_menu );
 268   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 269   gtk_widget_show( menuItem );
 270   m_items.Append( mitem );
 271 };
 272
 273 int wxMenu::FindItem( const wxString itemString ) const
 274 {
 275   wxString s( itemString );
 276
 277   int pos;
 278   do {
 279     pos = s.First( '&' );
 280     if (pos != -1) s.Remove( pos, 1 );
 281   } while (pos != -1);
 282
 283   wxNode *node = m_items.First();
 284   while (node)
 285   {
 286     wxMenuItem *item = (wxMenuItem*)node->Data();
 287     if (item->GetText() == s)
 288       return item->GetId();
 289     node = node->Next();
 290   };
 291
 292   return -1;
 293 };
 294
 295 void wxMenu::Enable( int id, bool enable )
 296 {
 297   wxMenuItem *item = FindItem(id);
 298   if ( item )
 299     item->Enable(enable);
 300 };
 301
 302 bool wxMenu::IsEnabled( int id ) const
 303 {
 304   wxMenuItem *item = FindItem(id);
 305   if ( item )
 306     return item->IsEnabled();
 307   else
 308     return FALSE;
 309 };
 310
 311 void wxMenu::Check( int id, bool enable )
 312 {
 313   wxMenuItem *item = FindItem(id);
 314   if ( item )
 315     item->Check(enable);
 316 };
 317
 318 bool wxMenu::IsChecked( int id ) const
 319 {
 320   wxMenuItem *item = FindItem(id);
 321   if ( item )
 322     return item->IsChecked();
 323   else
 324     return FALSE;
 325 };
 326
 327 void wxMenu::SetLabel( int id, const wxString &label )
 328 {
 329   wxMenuItem *item = FindItem(id);
 330   if ( item )
 331     item->SetText(label);
 332 };
 333
 334 int wxMenu::FindMenuIdByMenuItem( GtkWidget *menuItem ) const
 335 {
 336   wxNode *node = m_items.First();
 337   while (node)
 338   {
 339     wxMenuItem *item = (wxMenuItem*)node->Data();
 340     if (item->GetMenuItem() == menuItem)
 341       return item->GetId();
 342     node = node->Next();
 343   };
 344
 345   return -1;
 346 };
 347
 348 wxMenuItem *wxMenu::FindItem(int id) const
 349 {
 350   wxNode *node = m_items.First();
 351   while (node) {
 352     wxMenuItem *item = (wxMenuItem*)node->Data();
 353     if ( item->GetId() == id )
 354       return item;
 355     node = node->Next();
 356   };
 357
 358   wxLogDebug(_("wxMenu::FindItem: item %d not found."), id);
 359
 360   return NULL;
 361 }
 362
 363 void wxMenu::SetInvokingWindow( wxWindow *win )
 364 {
 365   m_invokingWindow = win;
 366 };
 367
 368 wxWindow *wxMenu::GetInvokingWindow()
 369 {
 370   return m_invokingWindow;
 371 };
 372
 373