自学教程：C++ GetPeer函数代码示例

void wxRadioButton::SetValue(bool val){    wxRadioButton *cycle;    if (GetPeer()->GetValue() == val)        return;    GetPeer()->SetValue( val );    if (val)    {        cycle = this->NextInCycle();        if (cycle != NULL)        {            while (cycle != this)            {                cycle->SetValue( false );                cycle = cycle->NextInCycle();            }        }    }}

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);}

void AwtLabel::DoPaint(HDC hDC, RECT& r){    JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);    if ((r.right-r.left) > 0 && (r.bottom-r.top) > 0 &&        m_peerObject != NULL && m_callbacksEnabled) {        if (env->EnsureLocalCapacity(3) < 0)            return;        long x,y;        SIZE size;        /* self is sun.awt.windows.WLabelPeer  */        jobject self = GetPeer(env);        DASSERT(self);        /* target is java.awt.Label */        jobject target = env->GetObjectField(self, AwtObject::targetID);        jobject font = GET_FONT(target, self);        jstring text = (jstring)env->GetObjectField(target, AwtLabel::textID);        size = AwtFont::getMFStringSize(hDC, font, text);        ::SetTextColor(hDC, GetColor());        /* Redraw whole label to eliminate display noise during resizing. */        VERIFY(::GetClientRect(GetHWnd(), &r));        VERIFY(::FillRect (hDC, &r, GetBackgroundBrush()));        y = (r.top + r.bottom - size.cy) / 2;        jint alignment = env->GetIntField(target, AwtLabel::alignmentID);        switch (alignment) {           case java_awt_Label_LEFT:              x = r.left + 2;              break;          case java_awt_Label_CENTER:              x = (r.left + r.right - size.cx) / 2;              break;          case java_awt_Label_RIGHT:              x = r.right - 2 - size.cx;              break;        }        /* draw string */        if (isEnabled()) {            AwtComponent::DrawWindowText(hDC, font, text, x, y);        } else {            AwtComponent::DrawGrayText(hDC, font, text, x, y);        }        DoCallback("handlePaint", "(IIII)V",                   r.left, r.top, r.right-r.left, r.bottom-r.top);        env->DeleteLocalRef(target);        env->DeleteLocalRef(font);        env->DeleteLocalRef(text);    }}

STDMETHODIMPCPosPassThru::get_StopTime(REFTIME * pllTime){    IMediaPosition* pMP;    HRESULT hr = GetPeer(&pMP);    if (FAILED(hr)) {	return hr;    }    hr = pMP->get_StopTime(pllTime);    pMP->Release();    return hr;}

void wxChoice::DoClear(){    for ( unsigned int i = 0 ; i < GetCount() ; i++ )    {        m_popUpMenu->Delete( m_popUpMenu->FindItemByPosition( 0 ) );    }    m_strings.Empty() ;    m_datas.Empty() ;    GetPeer()->SetMaximum( 0 ) ;}

MsgRoutingAwtTextComponent::WmNotify(UINT notifyCode){    if (notifyCode == EN_CHANGE) {        JNIEnv *env;        if (JVM->AttachCurrentThread((void **) &env, 0) == 0) {            env->CallVoidMethod(GetPeer(),                                 WCachedIDs.PPCTextComponentPeer_valueChangedMID);        }    }    return mrDoDefault;}

void pSocket::cmdPiece(size_t piece, size_t offset, unsigned char *data){	Session *sess = m_sess; 	if (!sess)	{		SetCloseAndDelete();		return;	}		Peer *peer = GetPeer();		size_t length = peer ? peer -> GotSlice(piece, offset) : 0;		if (length)	{		// Trafic Log		std::string sMl;		sMl.append("R ");		// Local ip @		sMl.append(m_sess->GetLocalIpAdr());		sMl.append(" ");		// Remote ip @		sMl.append(this->GetRemoteAddress());		sMl.append(" ");		// Number of hops to the remote ip @		std::ostringstream oss;		oss<<this->m_peer->GetNumberOfHops();		sMl.append(oss.str());		sMl.append(" ");		 // Number of bytes received from the remote peer		std::ostringstream oss2;		oss2<<length;		sMl.append(oss2.str());		sMl.append("/n");		if(ACTIVATE_LOG)		{				sess->AddDBytesToTrafficMatrix(this->GetRemoteAddress(), length);			sess ->matrix_log->add_line(sMl,false);		}		sess -> SaveSlice(piece, offset, length, data);		sess -> SetCheckComplete();		//TOVERIFY		sess -> GenerateRequest(peer);	}	else	{		char sMessage[100];		sprintf(sMessage,  "(%d)cmdPiece: no length for slice write", m_id);		if(ACTIVATE_LOG)			this->pSocket_log->add_line(sMessage,true);			}}

void wxSlider::SetValue(int value){    if ( m_macValueStatic )    {        wxString valuestring;        valuestring.Printf( wxT("%d"), value );        m_macValueStatic->SetLabel( valuestring );    }    // We only invert for the setting of the actual native widget    GetPeer()->SetValue( ValueInvertOrNot( value ) );}

	bool DarkNetwork::TryDispatchPackets(Packet &pck)	{		bool packet_dispatched = false;		Peer *peer = GetPeer(pck.address);		if (peer)		{			peer->SetInputBuffer(pck.buff);			packet_dispatched = true;		}		return packet_dispatched;	}

wxWindow *wxButton::SetDefault(){    wxWindow *btnOldDefault = wxButtonBase::SetDefault();    if ( btnOldDefault )    {        btnOldDefault->GetPeer()->SetDefaultButton( false );    }    GetPeer()->SetDefaultButton( true );    return btnOldDefault;}

CClient::~CClient(){	bool bWasChar;	// update ip history#ifndef _MTNETWORK	HistoryIP& history = g_NetworkIn.getIPHistoryManager().getHistoryForIP(GetPeer());#else	HistoryIP& history = g_NetworkManager.getIPHistoryManager().getHistoryForIP(GetPeer());#endif	if ( GetConnectType() != CONNECT_GAME )		history.m_connecting--;	history.m_connected--;	bWasChar = ( m_pChar != NULL );	CharDisconnect();	// am i a char in game ?	Cmd_GM_PageClear();	// Clear containers (CTAG and TOOLTIP)	m_TagDefs.Empty();	m_TooltipData.Clean(true);	CAccount * pAccount = GetAccount();	if ( pAccount )	{		pAccount->OnLogout(this, bWasChar);		m_pAccount = NULL;	}	if (m_pPopupPacket != NULL)	{		delete m_pPopupPacket;		m_pPopupPacket = NULL;	}	if (m_net->isClosed() == false)		g_Log.EventError("Client being deleted without being safely removed from the network system/n");}

void pSocket::cmdUnchoke(){	Peer *peer = GetPeer();	char sMessage[100];	sprintf(sMessage, ">(%d)Unchoke", m_id);	if(ACTIVATE_LOG)		this->pSocket_log->add_line(sMessage,true);		if (peer)	{		peer -> SetChoked(false);		peer -> RequestAvailable();	}}

// This function returns a local referencejobjectAwtMenuItem::GetFont(JNIEnv *env){    jobject self = GetPeer(env);    jobject target = env->GetObjectField(self, AwtObject::targetID);    jobject font = JNU_CallMethodByName(env, 0, target, "getFont_NoClientCode", "()Ljava/awt/Font;").l;    if (font == NULL) {        font = env->NewLocalRef(GetDefaultFont(env));    }    env->DeleteLocalRef(target);    return font;}

void pSocket::cmdNotinterested(){	char sMessage[100];	sprintf(sMessage, ">(%d)Notinterested", m_id);	if(ACTIVATE_LOG)		this->pSocket_log->add_line(sMessage,true);	Peer *peer = GetPeer();	if (peer)		peer -> SetInterested(false);	// We have modified the choking algorithm 	//if (!m_choke)	//	SendChoke(true);}

void wxChoice::DoDeleteOneItem(unsigned int n){    wxCHECK_RET( IsValid(n) , wxT("wxChoice::Delete: invalid index") );    if ( HasClientObjectData() )        delete GetClientObject( n );    m_popUpMenu->Delete( m_popUpMenu->FindItemByPosition( n ) );    m_strings.RemoveAt( n ) ;    m_datas.RemoveAt( n ) ;    GetPeer()->SetMaximum( GetCount() ) ;}

void AwtScrollPane::PostScrollEvent(int orient, int scrollCode, int pos) {    if (scrollCode == SB_ENDSCROLL) {	return;    }    // convert Windows scroll bar ident to peer ident    jint jorient;    if (orient == SB_VERT) {	jorient = java_awt_Adjustable_VERTICAL;    } else if (orient == SB_HORZ) {	jorient = java_awt_Adjustable_HORIZONTAL;    } else {	DASSERT(FALSE);	return;    }    // convert Windows scroll code to adjustment type and isAdjusting status    jint jscrollcode;    jboolean jadjusting = JNI_FALSE;    switch (scrollCode) {      case SB_LINEUP:	  jscrollcode = java_awt_event_AdjustmentEvent_UNIT_DECREMENT;	  break;      case SB_LINEDOWN:	  jscrollcode = java_awt_event_AdjustmentEvent_UNIT_INCREMENT;	  break;      case SB_PAGEUP:	  jscrollcode = java_awt_event_AdjustmentEvent_BLOCK_DECREMENT;	  break;      case SB_PAGEDOWN:	  jscrollcode = java_awt_event_AdjustmentEvent_BLOCK_INCREMENT;	  break;      case SB_THUMBTRACK:	  jscrollcode = java_awt_event_AdjustmentEvent_TRACK;	  jadjusting = JNI_TRUE;	  break;      case SB_THUMBPOSITION:	  jscrollcode = java_awt_event_AdjustmentEvent_TRACK;	  break;      default:	  DASSERT(FALSE);	  return;    }    JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);    env->CallVoidMethod(GetPeer(env), AwtScrollPane::postScrollEventID,			jorient, jscrollcode, (jint)pos, jadjusting);    DASSERT(!safe_ExceptionOccurred(env));}

MsgRoutingAwtChoice::WmNotify( UINT notifyCode ){    if ( notifyCode == CBN_SELCHANGE ) {        JNIEnv *env;        if ( JVM->AttachCurrentThread( (void **)&env, 0 ) != 0 ) {            return mrDoDefault; // ?        }        env->CallVoidMethod( GetPeer(),                             WCachedIDs.PPCChoicePeer_handleActionMID,                             SendMessage( CB_GETCURSEL ) );        ASSERT( !env->ExceptionCheck() );    }    return mrDoDefault;}

jobject AwtChoice::PreferredItemSize(JNIEnv *env){    jobject dimension = JNU_CallMethodByName(env, NULL, GetPeer(env),					     "preferredSize",					     "()Ljava/awt/Dimension;").l;    DASSERT(!safe_ExceptionOccurred(env));    if (dimension == NULL) {	return NULL;    }    /* This size is window size of choice and it's too big for each     * drop down item height.     */    env->SetIntField(dimension, AwtDimension::heightID,		       GetFontHeight(env));    return dimension;}

void wxMenuItem::UpdateItemText(){    if ( !m_parentMenu )        return ;    wxString text = wxStripMenuCodes(m_text, m_parentMenu != NULL && m_parentMenu->GetNoEventsMode() ? wxStrip_Accel : wxStrip_All);    if (text.IsEmpty() && !IsSeparator())    {        wxASSERT_MSG(wxIsStockID(GetId()), wxT("A non-stock menu item with an empty label?"));        text = wxGetStockLabel(GetId(), wxSTOCK_WITH_ACCELERATOR|wxSTOCK_WITH_MNEMONIC);    }    wxAcceleratorEntry *entry = wxAcceleratorEntry::Create( m_text ) ;    GetPeer()->SetLabel( text, entry );    delete entry ;}

/* * There currently is no good place to cache java.awt.Dimension field * ids. If this method gets called a lot, one such place should be found. * -- br 07/18/97. */jobject AwtList::PreferredItemSize(JNIEnv *env){    jobject peer = GetPeer(env);    jobject dimension = JNU_CallMethodByName(env, NULL, peer, "preferredSize",                                             "(I)Ljava/awt/Dimension;",                                             1).l;    DASSERT(!safe_ExceptionOccurred(env));    if (dimension == NULL) {        return NULL;    }    /* This size is too big for each item height. */    (env)->SetIntField(dimension, AwtDimension::heightID, GetFontHeight(env));    return dimension;}

bool CClient::OnRxConsoleLoginComplete(){	ADDTOCALLSTACK("CClient::OnRxConsoleLoginComplete");	if ( GetConnectType() != CONNECT_TELNET )		return false;	if ( !GetPeer().IsValidAddr() )		return false;	if ( GetPrivLevel() < PLEVEL_Admin )	// this really should not happen.	{		SysMessagef("%s/n", g_Cfg.GetDefaultMsg(DEFMSG_CONSOLE_NO_ADMIN));		return false;	}	SysMessagef("%s '%s' ('%s')/n", g_Cfg.GetDefaultMsg(DEFMSG_CONSOLE_WELCOME_2), GetName(), GetPeerStr());	return true;}

int CAuthServerHandler::HandleData(){    memset(m_pBuffer, 0x00, scgl::BUFFER_SIZE);    size_t n;    if ((n = GetPeer().recv(m_pBuffer, scgl::BUFFER_SIZE)) == -1)    {        return -1;    }    if (n < sizeof TAuthInfo)    {        return -1;    }    TAuthInfo authInfo;    authInfo << m_pBuffer;    tcout << authInfo.id << _T(":") << authInfo.password << std::endl;    return 0;}

HRESULT CInProcPlugHole::GetClassObject(REFCLSID rclsid, REFIID riid, LPVOID* ppv){	TRACE("%#x: GetClassObject(%s) thread %#x/n", GetCurrentThreadId(), GetImagePath());		IIPDolphinPtr piPeer;	HRESULT hr = GetPeer(&piPeer, rclsid);	if (FAILED(hr))	{		trace("%#x: CInProcPlugHole(%s)::GetClassObject() thread %#x: No peer available/n", GetCurrentThreadId(), GetImagePath());		return hr;	}	hr = piPeer->GetClassObject(rclsid, riid, ppv);	TRACE("%#x: GetClassObject() request returned %d/n", GetCurrentThreadId(), hr);	return hr;}

bool wxCheckBox::OSXHandleClicked( double WXUNUSED(timestampsec) ){    bool sendEvent = true;    wxCheckBoxState newState = Get3StateValue();    if ( !GetPeer()->ButtonClickDidStateChange() )    {        wxCheckBoxState origState ;        newState = origState = Get3StateValue();        switch (origState)        {            case wxCHK_UNCHECKED:                newState = wxCHK_CHECKED;                break;            case wxCHK_CHECKED:                // If the style flag to allow the user setting the undetermined state is set,                // then set the state to undetermined; otherwise set state to unchecked.                newState = Is3rdStateAllowedForUser() ? wxCHK_UNDETERMINED : wxCHK_UNCHECKED;                break;            case wxCHK_UNDETERMINED:                newState = wxCHK_UNCHECKED;                break;            default:                break;        }        if (newState == origState)            sendEvent = false;    }    if (sendEvent)    {        Set3StateValue( newState );        wxCommandEvent event( wxEVT_COMMAND_CHECKBOX_CLICKED, m_windowId );        event.SetInt( newState );        event.SetEventObject( this );        ProcessCommand( event );    }    return true;}