C++ GetMenuItems函数代码示例

wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
{
    // Update indices of radio groups.
    if ( m_radioData )
    {
        int pos = GetMenuItems().IndexOf(item);
        if ( m_radioData->UpdateOnRemoveItem(pos) )
        {
            wxASSERT_MSG( item->IsRadio(), wxS("Removing non radio button from radio group?") );
        }
        //else: item being removed is not in a radio group
    }

/*
    // we need to find the items position in the child list
    size_t pos;
    wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();

    for ( pos = 0; node; pos++ )
    {
        if ( node->GetData() == item )
            break;

        node = node->GetNext();
    }

    // DoRemove() (unlike Remove) can only be called for existing item!
    wxCHECK_MSG( node, NULL, wxT("bug in wxMenu::Remove logic") );

    wxOSXMenuRemoveItem(m_hMenu , pos );
    */
    GetPeer()->Remove( item );
    // and from internal data structures
    return wxMenuBase::DoRemove(item);
}

wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
{
    if ( m_startRadioGroup != -1 )
    {
        // Check if we're removing the item starting the radio group
        if ( GetMenuItems().Item(m_startRadioGroup)->GetData() == item )
        {
            // Yes, we do, so reset its index as the next item added shouldn't
            // count as part of the same radio group anyhow.
            m_startRadioGroup = -1;
        }
    }

    /*
        // we need to find the items position in the child list
        size_t pos;
        wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();

        for ( pos = 0; node; pos++ )
        {
            if ( node->GetData() == item )
                break;

            node = node->GetNext();
        }

        // DoRemove() (unlike Remove) can only be called for existing item!
        wxCHECK_MSG( node, NULL, wxT("bug in wxMenu::Remove logic") );

        wxOSXMenuRemoveItem(m_hMenu , pos );
        */
    GetPeer()->Remove( item );
    // and from internal data structures
    return wxMenuBase::DoRemove(item);
}

wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
{
    // we need to find the items position in the child list
    size_t pos;
    wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();

    for ( pos = 0; node; pos++ )
    {
        if ( node->GetData() == item )
            break;

        node = node->GetNext();
    }

    // DoRemove() (unlike Remove) can only be called for existing item!
    wxCHECK_MSG( node, NULL, wxT("bug in wxMenu::Remove logic") );

    ::DeleteMenuItem(MAC_WXHMENU(m_hMenu) , pos + 1);

    if ( IsAttached() && GetMenuBar()->IsAttached() )
        // otherwise, the change won't be visible
        GetMenuBar()->Refresh();

    // and from internal data structures
    return wxMenuBase::DoRemove(item);
}

void wxMenu::SetForegroundColour(const wxColour& col)
{
    m_foregroundColour = col;
    if (!col.IsOk())
        return;
    if (m_menuWidget)
        wxDoChangeForegroundColour(m_menuWidget, (wxColour&) col);
    if (m_buttonWidget)
        wxDoChangeForegroundColour(m_buttonWidget, (wxColour&) col);

#if defined(__INTEL_COMPILER) && 1 /* VDM auto patch */
#   pragma ivdep
#   pragma swp
#   pragma unroll
#   pragma prefetch
#   if 0
#       pragma simd noassert
#   endif
#endif /* VDM auto patch */
    for ( wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
          node;
          node = node->GetNext() )
    {
        wxMenuItem* item = node->GetData();
        if (item->GetButtonWidget())
        {
            // This crashes because it uses gadgets
            //            wxDoChangeForegroundColour(item->GetButtonWidget(), (wxColour&) col);
        }
        if (item->GetSubMenu())
            item->GetSubMenu()->SetForegroundColour((wxColour&) col);
    }
}

// non recursive search
wxMenuItem *wxMenuBase::FindChildItem(int id, size_t *ppos) const
{
    wxMenuItem *item = (wxMenuItem *)NULL;
    wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();

    size_t pos;
    for ( pos = 0; node; pos++ )
    {
        if ( node->GetData()->GetId() == id )
        {
            item = node->GetData();

            break;
        }

        node = node->GetNext();
    }

    if ( ppos )
    {
        *ppos = item ? pos : (size_t)wxNOT_FOUND;
    }

    return item;
}

wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
{
    // we need to find the items position in the child list
    size_t pos;
    wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
    for ( pos = 0; node; pos++ )
    {
        if ( node->GetData() == item )
            break;

        node = node->GetNext();
    }

    // DoRemove() (unlike Remove) can only be called for existing item!
    wxCHECK_MSG( node, NULL, wxT("bug in wxMenu::Remove logic") );

    // remove the item from the menu
    wxMenuItem *ret=wxMenuBase::DoRemove(item);

    if ( IsAttached() && GetMenuBar()->IsAttached() )
    {
        // Regenerate the menu resource
        GetMenuBar()->Refresh();
    }

    return ret;
}

// Destroys the Motif implementation of the menu,
// but maintains the wxWidgets data structures so we can
// do a CreateMenu again.
void wxMenu::DestroyMenu (bool full)
{
    for ( wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
            node;
            node = node->GetNext() )
    {
        wxMenuItem *item = node->GetData();
        item->SetMenuBar(NULL);

        item->DestroyItem(full);
    }

    if (m_buttonWidget)
    {
        if (full)
        {
            XtVaSetValues((Widget) m_buttonWidget, XmNsubMenuId, NULL, NULL);
            XtDestroyWidget ((Widget) m_buttonWidget);
            m_buttonWidget = (WXWidget) 0;
        }
    }
    if (m_menuWidget && full)
    {
        XtDestroyWidget((Widget) m_menuWidget);
        m_menuWidget = (WXWidget) NULL;
    }
}

WXWidget wxMenu::FindMenuItem (int id, wxMenuItem ** it) const
{
    if (id == m_menuId)
    {
        if (it)
            *it = NULL;
        return m_buttonWidget;
    }

    for ( wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
            node;
            node = node->GetNext() )
    {
        wxMenuItem *item = node->GetData ();
        if (item->GetId() == id)
        {
            if (it)
                *it = item;
            return item->GetButtonWidget();
        }

        if (item->GetSubMenu())
        {
            WXWidget w = item->GetSubMenu()->FindMenuItem (id, it);
            if (w)
            {
                return w;
            }
        }
    }

    if (it)
        *it = NULL;
    return (WXWidget) NULL;
}

/*virtual*/ void CWndToolBar::ChangeFocus(ui8 oldFocus)
{
	const CWndToolBar::CBarItem* pItems = GetMenuItems();
	SendMessage( GetParent(), ToWord('L', 'D'), (NATIVEPTR)pItems[oldFocus].m_pWndMenu );
	SendMessage( GetParent(), ToWord('L', 'E'), (NATIVEPTR)pItems[m_nFocus].m_pWndMenu );
	SendMessage( GetParent(), ToWord('L', 'R'), 0 );
	Settings.Runtime.m_nMenuItem = m_nFocus;
}

wxMenuItem* wxMenu::DoRemove(
  wxMenuItem*                       pItem
)
{
    //
    // We need to find the items position in the child list
    //
    size_t                          nPos;
    wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();

    for (nPos = 0; node; nPos++)
    {
        if (node->GetData() == pItem)
            break;
        node = node->GetNext();
    }

    //
    // DoRemove() (unlike Remove) can only be called for existing item!
    //
    wxCHECK_MSG(node, NULL, wxT("bug in wxMenu::Remove logic"));

#if wxUSE_ACCEL
    //
    // Remove the corresponding accel from the accel table
    //
    int                             n = FindAccel(pItem->GetId());

    if (n != wxNOT_FOUND)
    {
        delete m_vAccels[n];
        m_vAccels.RemoveAt(n);
    }

#endif // wxUSE_ACCEL
    //
    // Remove the item from the menu
    //
    ::WinSendMsg( GetHmenu()
                 ,MM_REMOVEITEM
                 ,MPFROM2SHORT(pItem->GetId(), TRUE)
                 ,(MPARAM)0
                );
    if (IsAttached() && GetMenuBar()->IsAttached())
    {
        //
        // Otherwise, the chane won't be visible
        //
        GetMenuBar()->Refresh();
    }

    //
    // And from internal data structures
    //
    return wxMenuBase::DoRemove(pItem);
} // end of wxMenu::DoRemove

void SuggestionsSidebarBlock::ClearSuggestionsMenu()
{
    auto m = m_suggestionsMenu;

    auto menuItems = m->GetMenuItems();
    for (auto i: menuItems)
    {
        if (std::find(m_suggestionMenuItems.begin(), m_suggestionMenuItems.end(), i) != m_suggestionMenuItems.end())
            m->Remove(i);
    }
}

wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
{
    if ( item->IsRadio() )
    {
        // Check if we're removing the item starting the radio group
        if ( item->IsRadioGroupStart() )
        {
            // Yes, we do, update the next radio group item, if any, to be the
            // start one now.
            const int endGroup = item->GetRadioGroupEnd();

            wxMenuItemList::compatibility_iterator
                node = GetMenuItems().Item(endGroup);
            wxASSERT_MSG( node, wxS("Should have valid radio group end") );

            while ( node->GetData() != item )
            {
                const wxMenuItemList::compatibility_iterator
                    prevNode = node->GetPrevious();
                wxMenuItem* const prevItem = prevNode->GetData();
                if ( prevItem == item )
                {
                    prevItem->SetAsRadioGroupStart();
                    prevItem->SetRadioGroupEnd(endGroup);
                    break;
                }

                node = prevNode;
            }
        }
    }

/*
    // we need to find the items position in the child list
    size_t pos;
    wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();

    for ( pos = 0; node; pos++ )
    {
        if ( node->GetData() == item )
            break;

        node = node->GetNext();
    }

    // DoRemove() (unlike Remove) can only be called for existing item!
    wxCHECK_MSG( node, NULL, wxT("bug in wxMenu::Remove logic") );

    wxOSXMenuRemoveItem(m_hMenu , pos );
    */
    GetPeer()->Remove( item );
    // and from internal data structures
    return wxMenuBase::DoRemove(item);
}

wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
{
    // we need to find the item's position in the child list
    size_t pos;
    wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
    for ( pos = 0; node; pos++ )
    {
        if ( node->GetData() == item )
            break;

        node = node->GetNext();
    }

#if wxUSE_ACCEL
    // remove the corresponding accel from the accel table
    int n = FindAccel(item->GetId());
    if ( n != wxNOT_FOUND )
    {
        delete m_accels[n];

        m_accels.RemoveAt(n);

#if wxUSE_OWNER_DRAWN
        ResetMaxAccelWidth();
#endif
    }
    //else: this item doesn't have an accel, nothing to do
#endif // wxUSE_ACCEL

    // Update indices of radio groups.
    if ( m_radioData )
    {
        bool inExistingGroup = m_radioData->UpdateOnRemoveItem(pos);

        wxASSERT_MSG( !inExistingGroup || item->GetKind() == wxITEM_RADIO,
                      wxT("Removing non radio button from radio group?") );
    }

    // remove the item from the menu
    if ( !::RemoveMenu(GetHmenu(), (UINT)pos, MF_BYPOSITION) )
    {
        wxLogLastError(wxT("RemoveMenu"));
    }

    if ( IsAttached() && GetMenuBar()->IsAttached() )
    {
        // otherwise, the change won't be visible
        GetMenuBar()->Refresh();
    }

    // and from internal data structures
    return wxMenuBase::DoRemove(item);
}

wxMenuItem* wxMenu::DoAppend(wxMenuItem *item)
{
    wxCHECK_MSG( item, NULL, wxT("NULL item in wxMenu::DoAppend") );

    bool check = false;

    if ( item->GetKind() == wxITEM_RADIO )
    {
        int count = GetMenuItemCount();

        if ( m_startRadioGroup == -1 )
        {
            // start a new radio group
            m_startRadioGroup = count;

            // for now it has just one element
            item->SetAsRadioGroupStart();
            item->SetRadioGroupEnd(m_startRadioGroup);

            // ensure that we have a checked item in the radio group
            check = true;
        }
        else // extend the current radio group
        {
            // we need to update its end item
            item->SetRadioGroupStart(m_startRadioGroup);
            wxMenuItemList::compatibility_iterator node = GetMenuItems().Item(m_startRadioGroup);

            if ( node )
            {
                node->GetData()->SetRadioGroupEnd(count);
            }
            else
            {
                wxFAIL_MSG( wxT("where is the radio group start item?") );
            }
        }
    }
    else // not a radio item
    {
        EndRadioGroup();
    }

    if ( !wxMenuBase::DoAppend(item) || !DoInsertOrAppend(item) )
        return NULL;

    if ( check )
        // check the item initially
        item->Check(true);

    return item;
}

// Update a menu and all submenus recursively. source is the object that has
// the update event handlers defined for it. If NULL, the menu or associated
// window will be used.
void wxMenuBase::UpdateUI(wxEvtHandler* source)
{
    if (GetInvokingWindow())
    {
        // Don't update menus if the parent
        // frame is about to get deleted
        wxWindow *tlw = wxGetTopLevelParent( GetInvokingWindow() );
        if (tlw && wxPendingDelete.Member(tlw))
            return;
    }

    if ( !source && GetInvokingWindow() )
        source = GetInvokingWindow()->GetEventHandler();
    if ( !source )
        source = GetEventHandler();
    if ( !source )
        source = this;

    wxMenuItemList::compatibility_iterator  node = GetMenuItems().GetFirst();
    while ( node )
    {
        wxMenuItem* item = node->GetData();
        if ( !item->IsSeparator() )
        {
            wxWindowID id = item->GetId();
            wxUpdateUIEvent event(id);
            event.SetEventObject( source );

            if ( source->ProcessEvent(event) )
            {
                // if anything changed, update the changed attribute
                if (event.GetSetText())
                    SetLabel(id, event.GetText());
                if (event.GetSetChecked())
                    Check(id, event.GetChecked());
                if (event.GetSetEnabled())
                    Enable(id, event.GetEnabled());
            }

            // recurse to the submenus
            if ( item->GetSubMenu() )
                item->GetSubMenu()->UpdateUI(source);
        }
        //else: item is a separator (which doesn't process update UI events)

        node = node->GetNext();
    }
}