自学教程：C++ updateInfo函数代码示例

void Viewport::mouseMoveEvent(QMouseEvent *event){    _dragging = true;    _current_pos = event->pos();    QGraphicsView::mouseMoveEvent(event);    if (scene->mouseGrabberItem() == NULL)    {        if (event->buttons() == Qt::LeftButton)        {            pan(_click_pos_world - sceneToWorld(mapToScene(event->pos())));        }        else if (event->buttons() == Qt::RightButton && !angle_locked)        {            QPointF d = _click_pos - event->pos();            pitch = fmin(0, fmax(-M_PI, pitch - 0.01 * d.y()));            yaw = fmod(yaw + M_PI - 0.01 * d.x(), M_PI*2) - M_PI;            _click_pos = event->pos();            update();            scene->invalidate(QRect(),QGraphicsScene::ForegroundLayer);            emit(viewChanged());        }    }    updateInfo();}

//英雄按钮void EquipUpgradeLayer::heroButton_OnTouch(Ref* sender, Widget::TouchEventType type){    if (type!=Widget::TouchEventType::ENDED) return;    SoundBLL::getInstance()->playEffect(kButtonSound);        for (auto &btn : m_HeroItemButtons) {        btn->setTouchEnabled(true);        btn->setBright(true);    }        auto btn=(ui::Button*)sender;    btn->setTouchEnabled(false);    btn->setBright(false);        currSelectHeroID=btn->getTag();        showWearpack();        m_WearPanel->setVisible(false);    s_wearborder->setVisible(false);    //英雄    HeroBase *hero=GameObjectFactory::getHero(currSelectHeroID-1);    //刷新数据    updateInfo(hero->getHeroModel());}

//使用按钮void EquipLayer::Button_shiyong_BtnOnTouch(Ref* sender, Widget::TouchEventType type){    if (type!=Widget::TouchEventType::ENDED) return;    SoundBLL::getInstance()->playEffect(kButtonSound);        //是否有选择的ID    if(currSelectBackpackID==-1){        PopTipsLayer::addTipLayer(this, "请选择装备！");        return;    }        if(!equiplocalBll->wearEquip(currSelectBackpackID, currSelectHeroID)) {        PopTipsLayer::addTipLayer(this, "装备栏已满！");        return;    }    currSelectBackpackID=-1;        setWearpackDataView(false);    setBackpackDataView(false);        showBackpack();    showWearpack();        //刷新数据    HeroBase *hero=GameObjectFactory::getHero(currSelectHeroID-1);    updateInfo(hero->getHeroModel());        if (updateCalllback) {        updateCalllback(this);    }}

BalanceWindow::BalanceWindow(QWidget *parent) :    QMainWindow(parent),    ui(new Ui::BalanceWindow){    ui->setupUi(this);    INFO = QSystemTrayIcon::Information;    WARNING = QSystemTrayIcon::Warning;    CRYTICAL = QSystemTrayIcon::Critical;    isAuthPage = true;    setCentralWidget(ui->verticalLayoutWidget);    setupStatusBar();    setupTrayIcon();    trayMessageTimer = new QTimer();    trayMessageTimer->setSingleShot(true);    updateTimer = new QTimer();    connect(updateTimer, SIGNAL(timeout()), this, SLOT(updateBalance()));    connect(ui->updateAction, SIGNAL(triggered()), this, SLOT(updateBalance()));    getSettings();    updateInfo();    if(!d)        updateBalance();}

// this is the function called by the timer// it loops through all accountsstatic gboolean callUpdateInfo(){	GList* cur;	AcctVar* curAcct;	gboolean isPlaying;	char* prevInfo;	char* title;	char* artist;	isPlaying = getSong(&title, &artist);	cur = g_list_first(accounts);	while(cur != NULL)	{		curAcct = (AcctVar*)cur->data;		prevInfo = updateInfo(curAcct->c, curAcct->prevInfo,			       title, artist, isPlaying, FALSE);		g_free(curAcct->prevInfo);		curAcct->prevInfo = prevInfo;		cur = cur->next;	}	if(isPlaying)	{		g_free(title);		g_free(artist);	}	return TRUE;}

ADMVideoYadif::ADMVideoYadif(AVDMGenericVideoStream *in, CONFcouple *couples){  _in=in;		  memcpy(&_info,_in->getInfo(),sizeof(_info));   _info.encoding=1; // _uncompressed=new uint8_t [3*_in->getInfo()->width*_in->getInfo()->height];   if(couples)  {   	 _param=new (YADIF_PARAM);	GET(mode);        GET(order);  }  else  {    _param = new ( YADIF_PARAM);    _param->mode=0;    _param->order=1;  }  _uncompressed=new ADMImage(_in->getInfo()->width,_in->getInfo()->height);  ADM_assert(_uncompressed);    	  	  vidCache = new VideoCache (10, in);  updateInfo();}

uint8_t ADMVideoYadif::configure( AVDMGenericVideoStream *instream) {  _in= instream;     diaMenuEntry tMode[]={                             {0,      QT_TR_NOOP("Temporal & spatial check"),NULL},                             {1,   QT_TR_NOOP("Bob, temporal & spatial check"),NULL},                             {2,      QT_TR_NOOP("Skip spatial temporal check"),NULL},                             {3,  QT_TR_NOOP("Bob, skip spatial temporal check"),NULL}          };     diaMenuEntry tOrder[]={                             {0,      QT_TR_NOOP("Bottom field first"),NULL},                             {1,   QT_TR_NOOP("Top field first"),NULL}          };       diaElemMenu mMode(&(_param->mode),   QT_TR_NOOP("_Mode:"), 4,tMode);     diaElemMenu morder(&(_param->order),   QT_TR_NOOP("_Order:"), 2,tOrder);          diaElem *elems[]={&mMode,&morder};          if(diaFactoryRun(QT_TR_NOOP("yadif"),sizeof(elems)/sizeof(diaElem *),elems))     {        updateInfo();        return 1;     }     return 0;}

bool MainCityMoreView::init(int buildId, int type){    if (!PopupBaseView::init()) {        return false;    }    setIsHDPanel(true);    m_buildId = buildId;    m_type = type;    auto tmpCCB = CCBLoadFile("MainCityMoreView",this,this);    if (CCCommonUtils::isIosAndroidPad()) {        this->setContentSize(CCDirector::sharedDirector()->getWinSize());    }    else        this->setContentSize(tmpCCB->getContentSize());        if (!CCCommonUtils::isIosAndroidPad()) {        int oldBgHeight = m_buildBG->getContentSize().height;        changeBGHeight(m_buildBG);        int newBgHeight = m_buildBG->getContentSize().height;        int addHeight = newBgHeight - oldBgHeight;        int oldWidth = m_infoList->getContentSize().width;        int oldHeight = m_infoList->getContentSize().height;        m_infoList->setPositionY(m_infoList->getPositionY()-addHeight);        m_infoList->setContentSize(CCSizeMake(oldWidth, oldHeight+addHeight));    }        m_scrollView = CCScrollView::create(m_infoList->getContentSize());    m_scrollView->setDirection(kCCScrollViewDirectionVertical);    m_infoList->addChild(m_scrollView);        updateInfo();        return true;}

void SizeAdapter::updateGui(const ::Atlas::Message::Element& element){	AdapterSelfUpdateContext context(*this);	WFMath::AxisBox<3> axisBox;	try {		axisBox.fromAtlas(element.asList());	} catch (...) {		axisBox = WFMath::AxisBox<3>(WFMath::Point<3>(-0.5, -0.5, -0.5), WFMath::Point<3>(0.5, 0.5, 0.5));	}	if (mLowerXWindow) {		mLowerXWindow->setText(toString(axisBox.lowCorner().x()));	}	if (mLowerYWindow) {		mLowerYWindow->setText(toString(axisBox.lowCorner().y()));	}	if (mLowerZWindow) {		mLowerZWindow->setText(toString(axisBox.lowCorner().z()));	}	if (mUpperXWindow) {		mUpperXWindow->setText(toString(axisBox.highCorner().x()));	}	if (mUpperYWindow) {		mUpperYWindow->setText(toString(axisBox.highCorner().y()));	}	if (mUpperZWindow) {		mUpperZWindow->setText(toString(axisBox.highCorner().z()));	}	updateInfo();}

void UpdateCheckerDialog::downloadUpdate(){	QPushButton *button(qobject_cast<QPushButton*>(sender()));	if (button)	{		QVariant updateInfo(button->property("downloadInfo"));		if (!updateInfo.isNull())		{			for (int i = 0; i < m_ui->gridLayout->count(); ++i)			{				m_ui->gridLayout->itemAt(i)->widget()->setVisible(false);				m_ui->gridLayout->itemAt(i)->widget()->deleteLater();			}			m_ui->label->setText(tr("Downloading:"));			m_ui->progressBar->setRange(0, 100);			m_ui->progressBar->show();			m_ui->buttonBox->setDisabled(true);			Updater *updater(new Updater(updateInfo.value<UpdateInformation>(), this));			connect(updater, SIGNAL(progress(int)), this, SLOT(updateProgress(int)));			connect(updater, SIGNAL(finished(bool)), this, SLOT(transferFinished(bool)));		}	}}

void SVIParticleAnimation::update(SVIUInt& time) {	if( getStatus() == IDLE ) {	}	updateInfo(time);	if( getStatus() == ANIMATING ) {				if(mParticleEffect != NULL) {			if(mParticleEffect->getStatus() == SVIParticleEffect::IDLE) {				mSlide->getProjectionSlide()->addParticleEffect(mParticleEffect);			}			SVIFloat interpolateTime = mInterpolator->getTimeInterpolation(time);		if(mParticleEffect)			mParticleEffect->updateFromAnimation(time, interpolateTime, mDuration);		}		if( isEnd(time) ) {			setStatus(END);			if( !mIsContainedInAniSet && mSlide != NULL ) {				//mSlide->getProjectionSlide()->removeParticleEffect(mParticleEffect);				mParticleEffect->stop();				mParticleEffect = NULL;				mSlide->removeAnimation();			}		}	}}

UserConfig::UserConfig(Contact *contact, Group *group)        : QDialog( NULL){    this->setAttribute( Qt::WA_DeleteOnClose);    setupUi( this);    m_contact  = contact;    m_group    = group;    m_nUpdates = 0;    SET_WNDPROC("configure")    setIcon(Pict(contact ? "info" : "configure").pixmap());    setButtonsPict(this);    setTitle();    QIcon iconSet = Icon("webpress");    if (!iconSet.pixmap(QIcon::Small, QIcon::Normal).isNull())        btnUpdate->setIconSet(iconSet);    btnUpdate->hide();    lstBox->setHScrollBarMode(Q3ScrollView::AlwaysOff);    lstBox->setSorting(1);    lstBox->header()->hide();    fill();    connect(lstBox, SIGNAL(currentChanged(Q3ListViewItem*)), this, SLOT(itemSelected(Q3ListViewItem*)));    connect(buttonApply, SIGNAL(clicked()), this, SLOT(apply()));    connect(btnUpdate, SIGNAL(clicked()), this, SLOT(updateInfo()));    lstBox->setCurrentItem(lstBox->firstChild());    itemSelected(lstBox->firstChild());}

void UserInfoBox::processResponse(const Response &r){    const Response_GetUserInfo &response = r.GetExtension(Response_GetUserInfo::ext);    updateInfo(response.user_info());    setFixedSize(sizeHint());    show();}

App::App() : KUniqueApplication()    ,m_networkAccessManager(new NetworkAccessManager(this))    ,m_oauth(new QOAuth::Interface(this))    ,m_parser(new QJson::Parser)    ,m_mainWindow(0)    ,m_controller(0)    ,m_tray(0){    qmlRegisterType<QDeclarativePropertyMap>();    m_controller = new Controller;    m_mainWindow = new MainWindow;    m_tray = new KStatusNotifierItem(m_mainWindow);    m_tray->setIconByName("kmoefm");    m_tray->setTitle(i18n("Moe FM"));    m_tray->setToolTipIconByName("kmoefm");    m_tray->setToolTipTitle(i18n("KMoeFM"));    m_tray->setToolTipSubTitle(i18n("Moe FM"));    KAction* action;    action = m_tray->actionCollection()->addAction(QLatin1String("relogin"), this, SLOT(relogin()));    action->setText(i18n("Relogin"));    m_tray->contextMenu()->addAction(action);    m_tray->setAssociatedWidget(m_mainWindow);    connect(m_controller, SIGNAL(infoChanged()), this, SLOT(updateInfo()));    m_oauth->setConsumerKey(CONSUMER_KEY);    m_oauth->setConsumerSecret(CONSUMER_SECRET);    readSettings();    connect(this, SIGNAL(checkCredentialFinished(bool)), SLOT(firstRunCheck(bool)));    QTimer::singleShot(0, this, SLOT(checkCredential()));}

HRESULT HostDnsServiceDarwin::init(){    SCDynamicStoreContext ctx;    RT_ZERO(ctx);    ctx.info = this;    m->m_store = SCDynamicStoreCreate(NULL, CFSTR("org.virtualbox.VBoxSVC"),                                   (SCDynamicStoreCallBack)HostDnsServiceDarwin::hostDnsServiceStoreCallback,                                   &ctx);    AssertReturn(m->m_store, E_FAIL);    m->m_DnsWatcher = SCDynamicStoreCreateRunLoopSource(NULL, m->m_store, 0);    if (!m->m_DnsWatcher)        return E_OUTOFMEMORY;    int rc = RTSemEventCreate(&m->m_evtStop);    AssertRCReturn(rc, E_FAIL);    CFRunLoopSourceContext sctx;    RT_ZERO(sctx);    sctx.perform = HostDnsServiceDarwin::Data::performShutdownCallback;    m->m_Stopper = CFRunLoopSourceCreate(kCFAllocatorDefault, 0, &sctx);    AssertReturn(m->m_Stopper, E_FAIL);    HRESULT hrc = HostDnsMonitor::init();    AssertComRCReturn(hrc, hrc);    return updateInfo();}

    void ContactsForVideoConference::updateMemberList()    {        if (allMembers_.Members_.size() == 0)        {            // Fetch all members first.            auto model = Logic::getCustomSearchModelDLG(false, true);            connection_ = connect(model, &QAbstractItemModel::dataChanged, this, &ContactsForVideoConference::allMembersDataChanged);            model->searchPatternChanged(QString());        }        else        {            std::shared_ptr<Data::ChatInfo> chatInfo = std::make_shared<Data::ChatInfo>();            int nCount = 0;            for (int i = 0; i < allMembers_.Members_.size(); i++)            {                Data::ChatMemberInfo memberInfo = allMembers_.Members_[i];                if (!videoConferenceModel_.isContactInChat(memberInfo.AimId_))                {                    chatInfo->Members_.push_back(memberInfo);                    nCount++;                }            }            chatInfo->MembersCount_ = nCount;            updateInfo(chatInfo, true);        }    }

bool DccVoiceWindow::event(QEvent *e){    if(e->type() == KVI_THREAD_EVENT)    {        switch(((KviThreadEvent *)e)->id())        {        case KVI_DCC_THREAD_EVENT_ERROR:        {            KviError::Code * pError = ((KviThreadDataEvent<KviError::Code> *)e)->getData();            QString ssss = KviError::getDescription(*pError);            output(KVI_OUT_DCCERROR,__tr2qs_ctx("ERROR: %Q","dcc"),&(ssss));            delete pError;            m_pUpdateTimer->stop();            updateInfo();            m_pTalkButton->setEnabled(false);            m_pRecordingLabel->setEnabled(false);            m_pPlayingLabel->setEnabled(false);            return true;        }        break;        case KVI_DCC_THREAD_EVENT_MESSAGE:        {            KviCString * str = ((KviThreadDataEvent<KviCString> *)e)->getData();            outputNoFmt(KVI_OUT_DCCMSG,__tr_no_xgettext_ctx(str->ptr(),"dcc"));            delete str;            return true;        }        break;        case KVI_DCC_THREAD_EVENT_ACTION:        {            int * act = ((KviThreadDataEvent<int> *)e)->getData();            switch(*act)            {            case KVI_DCC_VOICE_THREAD_ACTION_START_RECORDING:                m_pRecordingLabel->setEnabled(true);                break;            case KVI_DCC_VOICE_THREAD_ACTION_STOP_RECORDING:                m_pRecordingLabel->setEnabled(false);                break;            case KVI_DCC_VOICE_THREAD_ACTION_START_PLAYING:                m_pPlayingLabel->setEnabled(true);                break;            case KVI_DCC_VOICE_THREAD_ACTION_STOP_PLAYING:                m_pPlayingLabel->setEnabled(false);                break;            }            delete act;            return true;        }        break;        default:            qDebug("Invalid event type %d received",((KviThreadEvent *)e)->id());            break;        }    }    return KviWindow::event(e);}

void Viewport::setPitch(float p){    pitch = p;    update();    updateInfo();    scene->invalidate(QRect(),QGraphicsScene::ForegroundLayer);    emit(viewChanged());}

void updateClientInfo(struct info info_ary[], int info_num, struct client* clnt, struct info info){    int idx;    idx = getClientInfo(info_ary, info_num, clnt->info.name);    updateInfo(info_ary, idx, info);    clnt->info = info;    saveClientInfo(clnt);}

void UIItemNetworkHost::fetchNetworkData(const UIDataNetworkHost &data){    /* Get from cache: */    m_data = data;    /* Fetch info: */    updateInfo();}

void item_equipBag::on_btn_pgDn_clicked(){	if (CurrentPage < pages)	{		++CurrentPage;		updateInfo();	}}

BugEditDialog::BugEditDialog(Bug *b, QWidget *parent, Qt::WFlags flags)	: QDialog(parent, flags), bug(b){	ui.setupUi(this);	connect(bug, SIGNAL(dying()), this, SLOT(close()));	connect(bug, SIGNAL(dying()), this, SLOT(deleteLater()));	ui.procPage->setProcessor(&bug->get_processor());	ui.dnaPage->setBug(bug);	connect(bug, SIGNAL(changed()), ui.procPage, SLOT(updateInfo()));	connect(bug, SIGNAL(changed()), ui.dnaPage, SLOT(updateInfo()));	setAttribute(Qt::WA_QuitOnClose, false);	setAttribute(Qt::WA_DeleteOnClose, true);}

/* Get data to item: */void UIHostInterfaceItem::fetchNetworkData(const UIHostNetworkData &data){    /* Fetch from cache: */    m_data = data;    /* Update tool-tip: */    updateInfo();}