src/osx/menuitem_osx.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/menuitem_osx.cpp
   3 // Purpose:     wxMenuItem implementation
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id: menuitem.cpp 54129 2008-06-11 19:30:52Z SC $
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #if wxUSE_MENUS
  15
  16 #include "wx/menuitem.h"
  17 #include "wx/stockitem.h"
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/app.h"
  21     #include "wx/menu.h"
  22 #endif // WX_PRECOMP
  23
  24 #include "wx/osx/private.h"
  25
  26 IMPLEMENT_ABSTRACT_CLASS( wxMenuItemImpl , wxObject )
  27
  28 wxMenuItemImpl::~wxMenuItemImpl()
  29 {
  30 }
  31
  32 IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxObject)
  33
  34 wxMenuItem::wxMenuItem(wxMenu *pParentMenu,
  35                        int id,
  36                        const wxString& t,
  37                        const wxString& strHelp,
  38                        wxItemKind kind,
  39                        wxMenu *pSubMenu)
  40            :wxMenuItemBase(pParentMenu, id, t, strHelp, kind, pSubMenu)
  41 {
  42     wxASSERT_MSG( id != 0 || pSubMenu != NULL , wxT("A MenuItem ID of Zero does not work under Mac") ) ;
  43
  44     // In other languages there is no difference in naming the Exit/Quit menu item between MacOS and Windows guidelines
  45     // therefore these item must not be translated
  46     if ( wxStripMenuCodes(m_text).Upper() == wxT("EXIT") )
  47         m_text = wxT("Quit\tCtrl+Q") ;
  48
  49     m_radioGroup.start = -1;
  50     m_isRadioGroupStart = false;
  51
  52     wxString text = wxStripMenuCodes(m_text);
  53     if (text.IsEmpty() && !IsSeparator())
  54     {
  55         wxASSERT_MSG(wxIsStockID(GetId()), wxT("A non-stock menu item with an empty label?"));
  56         text = wxGetStockLabel(GetId(), wxSTOCK_WITH_ACCELERATOR|wxSTOCK_WITH_MNEMONIC);
  57     }
  58
  59     wxAcceleratorEntry *entry = wxAcceleratorEntry::Create( m_text ) ;
  60     // use accessors for ID and Kind because they might have been changed in the base constructor
  61     m_peer = wxMenuItemImpl::Create( this, pParentMenu, GetId(), text, entry, strHelp, GetKind(), pSubMenu );
  62     delete entry;
  63 }
  64
  65 wxMenuItem::~wxMenuItem()
  66 {
  67     delete m_peer;
  68 }
  69
  70 // change item state
  71 // -----------------
  72
  73 void wxMenuItem::SetBitmap(const wxBitmap& bitmap)
  74 {
  75       m_bitmap = bitmap;
  76       UpdateItemBitmap();
  77 }
  78
  79 void wxMenuItem::Enable(bool bDoEnable)
  80 {
  81     if (( m_isEnabled != bDoEnable
  82       // avoid changing menuitem state when menu is disabled
  83       // eg. BeginAppModalStateForWindow() will disable menus and ignore this change
  84       // which in turn causes m_isEnabled to become out of sync with real menuitem state
  85 #if wxOSX_USE_CARBON
  86          && !(m_parentMenu && !IsMenuItemEnabled(MAC_WXHMENU(m_parentMenu->GetHMenu()), 0))
  87 #endif
  88          )
  89       // always update builtin menuitems
  90          || (   GetId() == wxApp::s_macPreferencesMenuItemId
  91              || GetId() == wxApp::s_macExitMenuItemId
  92              || GetId() == wxApp::s_macAboutMenuItemId
  93          ))
  94     {
  95         wxMenuItemBase::Enable( bDoEnable ) ;
  96         UpdateItemStatus() ;
  97     }
  98 }
  99
 100 void wxMenuItem::UncheckRadio()
 101 {
 102     if ( m_isChecked )
 103     {
 104         wxMenuItemBase::Check( false ) ;
 105         UpdateItemStatus() ;
 106     }
 107 }
 108
 109 void wxMenuItem::Check(bool bDoCheck)
 110 {
 111     wxCHECK_RET( IsCheckable() && !IsSeparator(), wxT("only checkable items may be checked") );
 112
 113     if ( m_isChecked != bDoCheck )
 114     {
 115         if ( GetKind() == wxITEM_RADIO )
 116         {
 117             if ( bDoCheck )
 118             {
 119                 wxMenuItemBase::Check( bDoCheck ) ;
 120                 UpdateItemStatus() ;
 121
 122                 // get the index of this item in the menu
 123                 const wxMenuItemList& items = m_parentMenu->GetMenuItems();
 124                 int pos = items.IndexOf(this);
 125                 wxCHECK_RET( pos != wxNOT_FOUND,
 126                              wxT("menuitem not found in the menu items list?") );
 127
 128                 // get the radio group range
 129                 int start, end;
 130
 131                 if ( m_isRadioGroupStart )
 132                 {
 133                     // we already have all information we need
 134                     start = pos;
 135                     end = m_radioGroup.end;
 136                 }
 137                 else // next radio group item
 138                 {
 139                     // get the radio group end from the start item
 140                     start = m_radioGroup.start;
 141                     end = items.Item(start)->GetData()->m_radioGroup.end;
 142                 }
 143
 144                 // also uncheck all the other items in this radio group
 145                 wxMenuItemList::compatibility_iterator node = items.Item(start);
 146                 for ( int n = start; n <= end && node; n++ )
 147                 {
 148                     if ( n != pos )
 149                         ((wxMenuItem*)node->GetData())->UncheckRadio();
 150
 151                     node = node->GetNext();
 152                 }
 153             }
 154         }
 155         else
 156         {
 157             wxMenuItemBase::Check( bDoCheck ) ;
 158             UpdateItemStatus() ;
 159         }
 160     }
 161 }
 162
 163 void wxMenuItem::SetItemLabel(const wxString& text)
 164 {
 165     // don't do anything if label didn't change
 166     if ( m_text == text )
 167         return;
 168
 169     wxMenuItemBase::SetItemLabel(text);
 170
 171     UpdateItemText() ;
 172 }
 173
 174
 175 void wxMenuItem::UpdateItemBitmap()
 176 {
 177     if ( !m_parentMenu )
 178         return;
 179
 180     if ( m_bitmap.Ok() )
 181     {
 182         m_peer->SetBitmap( m_bitmap );
 183     }
 184 }
 185
 186 void wxMenuItem::UpdateItemStatus()
 187 {
 188     if ( !m_parentMenu )
 189         return ;
 190
 191     if ( IsSeparator() )
 192         return ;
 193
 194     if ( IsCheckable() && IsChecked() )
 195         m_peer->Check( true );
 196     else
 197         m_peer->Check( false );
 198
 199     m_peer->Enable( IsEnabled() );
 200 }
 201
 202 void wxMenuItem::UpdateItemText()
 203 {
 204     if ( !m_parentMenu )
 205         return ;
 206
 207     wxString text = wxStripMenuCodes(m_text);
 208     if (text.IsEmpty() && !IsSeparator())
 209     {
 210         wxASSERT_MSG(wxIsStockID(GetId()), wxT("A non-stock menu item with an empty label?"));
 211         text = wxGetStockLabel(GetId(), wxSTOCK_WITH_ACCELERATOR|wxSTOCK_WITH_MNEMONIC);
 212     }
 213
 214     wxAcceleratorEntry *entry = wxAcceleratorEntry::Create( m_text ) ;
 215     m_peer->SetLabel( text, entry );
 216     delete entry ;
 217 }
 218
 219 // radio group stuff
 220 // -----------------
 221
 222 void wxMenuItem::SetAsRadioGroupStart()
 223 {
 224     m_isRadioGroupStart = true;
 225 }
 226
 227 void wxMenuItem::SetRadioGroupStart(int start)
 228 {
 229     wxASSERT_MSG( !m_isRadioGroupStart,
 230                   wxT("should only be called for the next radio items") );
 231
 232     m_radioGroup.start = start;
 233 }
 234
 235 void wxMenuItem::SetRadioGroupEnd(int end)
 236 {
 237     wxASSERT_MSG( m_isRadioGroupStart,
 238                   wxT("should only be called for the first radio item") );
 239
 240     m_radioGroup.end = end;
 241 }
 242
 243 // ----------------------------------------------------------------------------
 244 // wxMenuItemBase
 245 // ----------------------------------------------------------------------------
 246
 247 wxMenuItem *wxMenuItemBase::New(wxMenu *parentMenu,
 248                                 int id,
 249                                 const wxString& name,
 250                                 const wxString& help,
 251                                 wxItemKind kind,
 252                                 wxMenu *subMenu)
 253 {
 254     return new wxMenuItem(parentMenu, id, name, help, kind, subMenu);
 255 }
 256
 257 #endif