src/mac/carbon/menuitem.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mac/carbon/menuitem.cpp
   3 // Purpose:     wxMenuItem implementation
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/menuitem.h"
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/app.h"
  18 #endif // WX_PRECOMP
  19
  20 #include "wx/menu.h"
  21
  22 #include "wx/mac/uma.h"
  23
  24 IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxObject)
  25
  26
  27 wxMenuItem::wxMenuItem(wxMenu *pParentMenu,
  28                        int id,
  29                        const wxString& text,
  30                        const wxString& strHelp,
  31                        wxItemKind kind,
  32                        wxMenu *pSubMenu)
  33            :wxMenuItemBase(pParentMenu, id, text, strHelp, kind, pSubMenu)
  34 {
  35     wxASSERT_MSG( id != 0 || pSubMenu != NULL , wxT("A MenuItem ID of Zero does not work under Mac") ) ;
  36
  37     // In other languages there is no difference in naming the Exit/Quit menu item between MacOS and Windows guidelines
  38     // therefore these item must not be translated
  39     if ( wxStripMenuCodes(m_text).Upper() == wxT("EXIT") )
  40         m_text = wxT("Quit\tCtrl+Q") ;
  41
  42     m_radioGroup.start = -1;
  43     m_isRadioGroupStart = false;
  44 }
  45
  46 wxMenuItem::~wxMenuItem()
  47 {
  48 }
  49
  50 // change item state
  51 // -----------------
  52
  53 void wxMenuItem::SetBitmap(const wxBitmap& bitmap)
  54 {
  55       m_bitmap = bitmap;
  56       UpdateItemBitmap();
  57 }
  58
  59 void wxMenuItem::UpdateItemBitmap()
  60 {
  61     if ( !m_parentMenu )
  62         return ;
  63
  64     MenuHandle mhandle = MAC_WXHMENU(m_parentMenu->GetHMenu()) ;
  65     MenuItemIndex index = m_parentMenu->MacGetIndexFromItem( this ) ;
  66     if ( mhandle == NULL || index == 0)
  67         return ;
  68
  69     if ( m_bitmap.Ok() )
  70     {
  71 #if wxUSE_BMPBUTTON
  72         ControlButtonContentInfo info ;
  73         wxMacCreateBitmapButton( &info , m_bitmap ) ;
  74         if ( info.contentType != kControlNoContent )
  75         {
  76             if ( info.contentType == kControlContentIconRef )
  77                 SetMenuItemIconHandle( mhandle , index ,
  78                     kMenuIconRefType , (Handle) info.u.iconRef ) ;
  79         }
  80         wxMacReleaseBitmapButton( &info ) ;
  81 #endif
  82     }
  83 }
  84
  85 void wxMenuItem::UpdateItemStatus()
  86 {
  87     if ( !m_parentMenu )
  88         return ;
  89
  90     if ( IsSeparator() )
  91         return ;
  92
  93 #if TARGET_CARBON
  94     if ( UMAGetSystemVersion() >= 0x1000 && GetId() == wxApp::s_macPreferencesMenuItemId)
  95     {
  96         if ( !IsEnabled() )
  97             DisableMenuCommand( NULL , kHICommandPreferences ) ;
  98         else
  99             EnableMenuCommand( NULL , kHICommandPreferences ) ;
 100     }
 101
 102     if ( UMAGetSystemVersion() >= 0x1000 && GetId() == wxApp::s_macExitMenuItemId)
 103     {
 104         if ( !IsEnabled() )
 105             DisableMenuCommand( NULL , kHICommandQuit ) ;
 106         else
 107             EnableMenuCommand( NULL , kHICommandQuit ) ;
 108     }
 109 #endif
 110
 111     {
 112         MenuHandle mhandle = MAC_WXHMENU(m_parentMenu->GetHMenu()) ;
 113         MenuItemIndex index = m_parentMenu->MacGetIndexFromItem( this ) ;
 114         if ( mhandle == NULL || index == 0)
 115             return ;
 116
 117         UMAEnableMenuItem( mhandle , index , m_isEnabled ) ;
 118         if ( IsCheckable() && IsChecked() )
 119             ::SetItemMark( mhandle , index , 0x12 ) ; // checkmark
 120         else
 121             ::SetItemMark( mhandle , index , 0 ) ; // no mark
 122
 123         UMASetMenuItemText( mhandle , index , wxStripMenuCodes(m_text) , wxFont::GetDefaultEncoding() ) ;
 124         wxAcceleratorEntry *entry = wxGetAccelFromString( m_text ) ;
 125         UMASetMenuItemShortcut( mhandle , index , entry ) ;
 126         delete entry ;
 127     }
 128 }
 129
 130 void wxMenuItem::UpdateItemText()
 131 {
 132     if ( !m_parentMenu )
 133         return ;
 134
 135     MenuHandle mhandle = MAC_WXHMENU(m_parentMenu->GetHMenu()) ;
 136     MenuItemIndex index = m_parentMenu->MacGetIndexFromItem( this ) ;
 137     if (mhandle == NULL || index == 0)
 138         return ;
 139
 140     UMASetMenuItemText( mhandle , index , wxStripMenuCodes(m_text) , wxFont::GetDefaultEncoding() ) ;
 141     wxAcceleratorEntry *entry = wxGetAccelFromString( m_text ) ;
 142     UMASetMenuItemShortcut( mhandle , index , entry ) ;
 143     delete entry ;
 144 }
 145
 146 void wxMenuItem::Enable(bool bDoEnable)
 147 {
 148     if (( m_isEnabled != bDoEnable
 149 #if TARGET_CARBON
 150       // avoid changing menuitem state when menu is disabled
 151       // eg. BeginAppModalStateForWindow() will disable menus and ignore this change
 152       // which in turn causes m_isEnabled to become out of sync with real menuitem state
 153          && !(m_parentMenu && !IsMenuItemEnabled(MAC_WXHMENU(m_parentMenu->GetHMenu()), 0)) )
 154       // always update builtin menuitems
 155          || (   GetId() == wxApp::s_macPreferencesMenuItemId
 156              || GetId() == wxApp::s_macExitMenuItemId
 157              || GetId() == wxApp::s_macAboutMenuItemId
 158 #endif
 159          ))
 160     {
 161         wxMenuItemBase::Enable( bDoEnable ) ;
 162         UpdateItemStatus() ;
 163     }
 164 }
 165
 166 void wxMenuItem::UncheckRadio()
 167 {
 168     if ( m_isChecked )
 169     {
 170         wxMenuItemBase::Check( false ) ;
 171         UpdateItemStatus() ;
 172     }
 173 }
 174
 175 void wxMenuItem::Check(bool bDoCheck)
 176 {
 177     wxCHECK_RET( IsCheckable() && !IsSeparator(), wxT("only checkable items may be checked") );
 178
 179     if ( m_isChecked != bDoCheck )
 180     {
 181         if ( GetKind() == wxITEM_RADIO )
 182         {
 183             if ( bDoCheck )
 184             {
 185                 wxMenuItemBase::Check( bDoCheck ) ;
 186                 UpdateItemStatus() ;
 187
 188                 // get the index of this item in the menu
 189                 const wxMenuItemList& items = m_parentMenu->GetMenuItems();
 190                 int pos = items.IndexOf(this);
 191                 wxCHECK_RET( pos != wxNOT_FOUND,
 192                              _T("menuitem not found in the menu items list?") );
 193
 194                 // get the radio group range
 195                 int start, end;
 196
 197                 if ( m_isRadioGroupStart )
 198                 {
 199                     // we already have all information we need
 200                     start = pos;
 201                     end = m_radioGroup.end;
 202                 }
 203                 else // next radio group item
 204                 {
 205                     // get the radio group end from the start item
 206                     start = m_radioGroup.start;
 207                     end = items.Item(start)->GetData()->m_radioGroup.end;
 208                 }
 209
 210                 // also uncheck all the other items in this radio group
 211                 wxMenuItemList::compatibility_iterator node = items.Item(start);
 212                 for ( int n = start; n <= end && node; n++ )
 213                 {
 214                     if ( n != pos )
 215                         ((wxMenuItem*)node->GetData())->UncheckRadio();
 216
 217                     node = node->GetNext();
 218                 }
 219             }
 220         }
 221         else
 222         {
 223             wxMenuItemBase::Check( bDoCheck ) ;
 224             UpdateItemStatus() ;
 225         }
 226     }
 227 }
 228
 229 void wxMenuItem::SetText(const wxString& text)
 230 {
 231     // don't do anything if label didn't change
 232     if ( m_text == text )
 233         return;
 234
 235     wxMenuItemBase::SetText(text);
 236
 237     UpdateItemText() ;
 238 }
 239
 240 // radio group stuff
 241 // -----------------
 242
 243 void wxMenuItem::SetAsRadioGroupStart()
 244 {
 245     m_isRadioGroupStart = true;
 246 }
 247
 248 void wxMenuItem::SetRadioGroupStart(int start)
 249 {
 250     wxASSERT_MSG( !m_isRadioGroupStart,
 251                   wxT("should only be called for the next radio items") );
 252
 253     m_radioGroup.start = start;
 254 }
 255
 256 void wxMenuItem::SetRadioGroupEnd(int end)
 257 {
 258     wxASSERT_MSG( m_isRadioGroupStart,
 259                   wxT("should only be called for the first radio item") );
 260
 261     m_radioGroup.end = end;
 262 }
 263
 264 // ----------------------------------------------------------------------------
 265 // wxMenuItemBase
 266 // ----------------------------------------------------------------------------
 267
 268 /* static */
 269 wxString wxMenuItemBase::GetLabelFromText(const wxString& text)
 270 {
 271     return wxStripMenuCodes(text);
 272 }
 273
 274 wxMenuItem *wxMenuItemBase::New(wxMenu *parentMenu,
 275                                 int id,
 276                                 const wxString& name,
 277                                 const wxString& help,
 278                                 wxItemKind kind,
 279                                 wxMenu *subMenu)
 280 {
 281     return new wxMenuItem(parentMenu, id, name, help, kind, subMenu);
 282 }