wxWidgets/src/mac/carbon/menuitem.cpp

///////////////////////////////////////////////////////////////////////////////
// Name:        menuitem.cpp
// Purpose:     wxMenuItem implementation
// Author:      AUTHOR
// Modified by: 
// Created:     ??/??/98
// RCS-ID:      $Id$
// Copyright:   (c) AUTHOR
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

// ============================================================================
// headers & declarations
// ============================================================================

#include "wx/app.h"
#include "wx/menu.h"
#include "wx/menuitem.h"

#include "wx/mac/uma.h"
// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// dynamic classes implementation
// ----------------------------------------------------------------------------

#if !USE_SHARED_LIBRARY
  IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxObject)
#endif  //USE_SHARED_LIBRARY

// ----------------------------------------------------------------------------
// wxMenuItem
// ----------------------------------------------------------------------------

//
// ctor & dtor
// -----------

wxMenuItem::wxMenuItem(wxMenu *pParentMenu,
                       int id,
                       const wxString& text,
                       const wxString& strHelp,
                       wxItemKind kind,
                       wxMenu *pSubMenu) 
          : wxMenuItemBase(pParentMenu, id, text, strHelp, kind, pSubMenu)
{
    // In other languages there is no difference in naming the Exit/Quit menu item between MacOS and Windows guidelines
    // therefore these item must not be translated
    if ( wxStripMenuCodes(m_text).Upper() ==  "EXIT" )
    {
        m_text = "Quit\tCtrl+Q" ;
    }

    m_radioGroup.start = -1;
    m_isRadioGroupStart = FALSE;
}

wxMenuItem::~wxMenuItem() 
{
}

// change item state
// -----------------

void wxMenuItem::SetBitmap(const wxBitmap& bitmap) 
{ 
  	m_bitmap = bitmap; 
  	UpdateItemBitmap() ;
}

void wxMenuItem::UpdateItemBitmap() 
{
	if ( !m_parentMenu )
		return ;
		
	MenuHandle mhandle = MAC_WXHMENU(m_parentMenu->GetHMenu()) ;
	MenuItemIndex index = m_parentMenu->MacGetIndexFromItem( this ) ;
	if( mhandle == NULL || index == 0)
		return ;
		
	if ( m_bitmap.Ok() )
	{
		ControlButtonContentInfo info ;
		wxMacCreateBitmapButton( &info , m_bitmap , kControlContentCIconHandle ) ;
		if ( info.contentType != kControlNoContent )
		{
			if ( info.contentType == kControlContentCIconHandle )
				SetMenuItemIconHandle( mhandle , index , 
					kMenuColorIconType , (Handle) info.u.cIconHandle ) ;
	    }
			
	}
}

void wxMenuItem::UpdateItemStatus() 
{
	if ( !m_parentMenu )
		return ;
		
	MenuHandle mhandle = MAC_WXHMENU(m_parentMenu->GetHMenu()) ;
	MenuItemIndex index = m_parentMenu->MacGetIndexFromItem( this ) ;
	if( mhandle == NULL || index == 0)
		return ;

  	UMAEnableMenuItem( mhandle , index , m_isEnabled ) ;
  	if ( IsCheckable() && IsChecked() )
		::SetItemMark( mhandle , index , 0x12 ) ; // checkmark
	else
		::SetItemMark( mhandle , index , 0 ) ; // no mark

   	UMASetMenuItemText( mhandle , index , m_text ) ; 
   	wxAcceleratorEntry *entry = wxGetAccelFromString( m_text ) ;
	UMASetMenuItemShortcut( mhandle , index , entry ) ;
	delete entry ;
}

void wxMenuItem::UpdateItemText() 
{
	if ( !m_parentMenu )
		return ;
		
	MenuHandle mhandle = MAC_WXHMENU(m_parentMenu->GetHMenu()) ;
	MenuItemIndex index = m_parentMenu->MacGetIndexFromItem( this ) ;
	if( mhandle == NULL || index == 0)
		return ;

   	UMASetMenuItemText( mhandle , index , m_text ) ; 
   	wxAcceleratorEntry *entry = wxGetAccelFromString( m_text ) ;
	UMASetMenuItemShortcut( mhandle , index , entry ) ;
	delete entry ;
}


void wxMenuItem::Enable(bool bDoEnable)
{
	if ( m_isEnabled != bDoEnable ) 
	{
		wxMenuItemBase::Enable( bDoEnable ) ;
		UpdateItemStatus() ;
	}
}
void wxMenuItem::UncheckRadio()
{
	if ( m_isChecked ) 
	{
		wxMenuItemBase::Check( false ) ;
		UpdateItemStatus() ;
	}
}

void wxMenuItem::Check(bool bDoCheck)
{
	wxCHECK_RET( IsCheckable(), "only checkable items may be checked" );

	if ( m_isChecked != bDoCheck ) 
	{
		if ( GetKind() == wxITEM_RADIO )
		{
			if ( bDoCheck )
			{
				wxMenuItemBase::Check( bDoCheck ) ;
				UpdateItemStatus() ;
				
		        // get the index of this item in the menu
		        const wxMenuItemList& items = m_parentMenu->GetMenuItems();
		        int pos = items.IndexOf(this);
		        wxCHECK_RET( pos != wxNOT_FOUND,
		                     _T("menuitem not found in the menu items list?") );

		        // get the radio group range
		        int start,
		            end;

		        if ( m_isRadioGroupStart )
		        {
		            // we already have all information we need
		            start = pos;
		            end = m_radioGroup.end;
		        }
		        else // next radio group item
		        {
		            // get the radio group end from the start item
		            start = m_radioGroup.start;
		            end = items.Item(start)->GetData()->m_radioGroup.end;
		        }

		        // also uncheck all the other items in this radio group
		        wxMenuItemList::Node *node = items.Item(start);
		        for ( int n = start; n <= end && node; n++ )
		        {
		            if ( n != pos )
		            {
		                ((wxMenuItem*)node->GetData())->UncheckRadio();
		            }
		            node = node->GetNext();
		        }
			}
		}
		else
		{
			wxMenuItemBase::Check( bDoCheck ) ;
			UpdateItemStatus() ;
		}
	}
}

void wxMenuItem::SetText(const wxString& text)
{
    // don't do anything if label didn't change
    if ( m_text == text )
        return;

    wxMenuItemBase::SetText(text);
    
    UpdateItemText() ;
}

// radio group stuff
// -----------------

void wxMenuItem::SetAsRadioGroupStart()
{
    m_isRadioGroupStart = TRUE;
}

void wxMenuItem::SetRadioGroupStart(int start)
{
    wxASSERT_MSG( !m_isRadioGroupStart,
                  _T("should only be called for the next radio items") );

    m_radioGroup.start = start;
}

void wxMenuItem::SetRadioGroupEnd(int end)
{
    wxASSERT_MSG( m_isRadioGroupStart,
                  _T("should only be called for the first radio item") );

    m_radioGroup.end = end;
}

// ----------------------------------------------------------------------------
// wxMenuItemBase
// ----------------------------------------------------------------------------

/* static */
wxString wxMenuItemBase::GetLabelFromText(const wxString& text)
{
    return wxStripMenuCodes(text);
}

wxMenuItem *wxMenuItemBase::New(wxMenu *parentMenu,
                                int id,
                                const wxString& name,
                                const wxString& help,
                                wxItemKind kind,
                                wxMenu *subMenu)
{
    return new wxMenuItem(parentMenu, id, name, help, kind, subMenu);
}