C++ wxScopedPtr类代码示例

void SocketTestCase::UrlTest()
{
    if ( gs_serverHost.empty() )
        return;

    SocketTestEventLoop loop(ms_useLoop);

    wxURL url("http://" + gs_serverHost);

    const wxScopedPtr<wxInputStream> in(url.GetInputStream());
    CPPUNIT_ASSERT( in.get() );

    wxStringOutputStream out;
    CPPUNIT_ASSERT_EQUAL( wxSTREAM_EOF, in->Read(out).GetLastError() );
}

wxTaskBarJumpListCategory& wxTaskBarJumpListImpl::GetTasks()
{
    if ( m_tasks.get() == NULL )
        m_tasks.reset(new wxTaskBarJumpListCategory(m_jumpList, wxT("Tasks")));

    return *(m_tasks.get());
}

wxString wxFindFirstFile(const wxString& spec, int flags)
{
    wxFileName::SplitPath(spec, &gs_dirPath, NULL, NULL);
    if ( gs_dirPath.empty() )
        gs_dirPath = wxT(".");
    if ( !wxEndsWithPathSeparator(gs_dirPath ) )
        gs_dirPath << wxFILE_SEP_PATH;

    gs_dir.reset(new wxDir(gs_dirPath));

    if ( !gs_dir->IsOpened() )
    {
        wxLogSysError(_("Cannot enumerate files '%s'"), spec);
        return wxEmptyString;
    }

    int dirFlags;
    switch (flags)
    {
        case wxDIR:  dirFlags = wxDIR_DIRS; break;
        case wxFILE: dirFlags = wxDIR_FILES; break;
        default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
    }

    wxString result;
    gs_dir->GetFirst(&result, wxFileNameFromPath(spec), dirFlags);
    if ( result.empty() )
        return result;

    return gs_dirPath + result;
}

const wxTaskBarJumpListCategory& wxTaskBarJumpListImpl::GetRecentCategory()
{
    wxString title = wxT("Recent");
    if ( m_recent.get() == NULL )
        m_recent.reset(new wxTaskBarJumpListCategory(m_jumpList, title));
    LoadKnownCategory(title);

    return *m_recent.get();
}

void MyApp::ShowPreferencesEditor(wxWindow* parent)
{
    if ( !m_prefEditor )
    {
        m_prefEditor.reset(new wxPreferencesEditor);
        m_prefEditor->AddPage(new PrefsPageGeneral());
        m_prefEditor->AddPage(new PrefsPageTopics());
    }

    m_prefEditor->Show(parent);
}

void wxMenuBar::Init()
{
    if ( !gs_emptyMenuBar )
    {
        gs_emptyMenuBar.reset( new wxMenu() );
        gs_emptyMenuBar->AppendSubMenu(CreateAppleMenu(), "\x14") ;
    }
    
    m_eventHandler = this;
    m_menuBarFrame = NULL;
    m_rootMenu = new wxMenu();
    m_rootMenu->Attach(this);

    m_appleMenu = CreateAppleMenu();
    m_rootMenu->AppendSubMenu(m_appleMenu, "\x14") ;
}

void wxMenuBar::MacUninstallMenuBar()
{
  if (s_macInstalledMenuBar == this)
  {
    gs_emptyMenuBar->GetPeer()->MakeRoot();
    s_macInstalledMenuBar = NULL;
  }
}

wxString wxFindNextFile()
{
    wxCHECK_MSG( gs_dir, "", "You must call wxFindFirstFile before!" );

    wxString result;
    if ( !gs_dir->GetNext(&result) || result.empty() )
        return result;

    return gs_dirPath + result;
}

void wxTaskBarJumpListImpl::AddTasksToDestinationList()
{
    if ( !m_tasks.get() )
        return;

    wxCOMPtr<IObjectCollection> collection(CreateObjectCollection());
    if ( !collection )
        return;

    const wxTaskBarJumpListItems& tasks = m_tasks->GetItems();
    for ( wxTaskBarJumpListItems::const_iterator it = tasks.begin();
          it != tasks.end();
          ++it )
    {
        wxASSERT_MSG( ((*it)->GetType() == wxTASKBAR_JUMP_LIST_TASK ||
                       (*it)->GetType() == wxTASKBAR_JUMP_LIST_SEPARATOR),
                      "Invalid task Item." );
        AddShellLink(collection, *(*it));
    }
    m_destinationList->AddUserTasks(collection);
}

wxMenu::~wxMenu()
{
#if wxOSX_USE_CARBON
    // when destroying the empty menu bar from the static scoped ptr
    // the peer destructor removes an association from an already deleted
    // hashmap leading to crashes. The guard avoids this, accepting some leaks...
    static bool finalmenubar = false;
    
    if ( this == gs_emptyMenuBar.get() )
        finalmenubar = true;
    
    if ( !finalmenubar )
#endif
        delete m_peer;
}

wxMenuBar::~wxMenuBar()
{
    if (s_macCommonMenuBar == this)
        s_macCommonMenuBar = NULL;

    if (s_macInstalledMenuBar == this)
    {
        gs_emptyMenuBar->GetPeer()->MakeRoot();
        s_macInstalledMenuBar = NULL;
    }
    wxDELETE( m_rootMenu );
    // apple menu is a submenu, therefore we don't have to delete it
    m_appleMenu = NULL;

    // deleting the root menu also removes all its wxMenu* submenus, therefore
    // we must avoid double deleting them in the superclass destructor
    m_menus.clear();
}

void wxTaskBarJumpListImpl::LoadKnownCategory(const wxString& title)
{
    IApplicationDocumentLists *docList = 0;
    HRESULT hr = CoCreateInstance
                 (
                    wxCLSID_ApplicationDocumentLists,
                    NULL,
                    CLSCTX_INPROC_SERVER,
                    wxIID_IApplicationDocumentLists,
                    reinterpret_cast<void **>(&docList)
                 );
    if ( FAILED(hr) )
    {
        wxLogApiError("CoCreateInstance(wxCLSID_ApplicationDocumentLists)", hr);
        return;
    }
    if ( !m_appID.empty() )
        docList->SetAppID(m_appID.wc_str());

    IObjectArray *array = NULL;
    wxASSERT_MSG( title == "Recent" || title == "Frequent", "Invalid title." );
    hr = docList->GetList
                 (
                     title == "Recent" ? ADLT_RECENT : ADLT_FREQUENT,
                     0,
                     wxIID_IObjectArray,
                     reinterpret_cast<void **>(&array)
                 );
    if ( FAILED(hr) )
    {
        wxLogApiError("IApplicationDocumentLists::GetList", hr);
        return;
    }

    UINT count = 0;
    array->GetCount(&count);
    for (UINT i = 0; i < count; ++i)
    {
        IUnknown *collectionItem = NULL;
        hr = array->GetAt(i, wxIID_IUnknown,
                          reinterpret_cast<void **>(&collectionItem));
        if ( FAILED(hr) )
        {
            wxLogApiError("IObjectArray::GetAt", hr);
            continue;
        }

        IShellLink *shellLink = NULL;
        IShellItem *shellItem = NULL;
        wxTaskBarJumpListItem* item = NULL;

        if ( SUCCEEDED(collectionItem->QueryInterface(
                 wxIID_IShellLink, reinterpret_cast<void**>(&shellLink))) )
        {
            item = GetItemFromIShellLink(shellLink);
            shellLink->Release();
        }
        else if ( SUCCEEDED(collectionItem->QueryInterface(
                      wxIID_IShellItem, reinterpret_cast<void**>(&shellItem))) )
        {
            item = GetItemFromIShellItem(shellItem);
            shellItem->Release();
        }
        else
        {
            wxLogError("Can not query interfaces: IShellLink or IShellItem.");
        }

        if ( item )
        {
            if ( title == wxT("Frequent") )
                m_frequent->Append(item);
            else
                m_recent->Append(item);
        }
        collectionItem->Release();
    }

    array->Release();
    docList->Release();
}

void MyApp::DismissPreferencesEditor()
{
    if ( m_prefEditor )
        m_prefEditor->Dismiss();
}