自学教程：C++ updateLabel函数代码示例

void doIMU() {  // Accel (degrees)  IntToStr((int)(MPU9150A.out_accel.x * 90.0f),txt);  updateLabel(&accelX, ltrim(txt));  IntToStr((int)(MPU9150A.out_accel.y * 90.0f),txt);  updateLabel(&accelY, ltrim(txt));  IntToStr((int)(MPU9150A.out_accel.z * 90.0f),txt);  updateLabel(&accelZ, ltrim(txt));  // Gyro (degrees/second)  IntToStr((int)(MPU9150A.out_gyro.x * 1000.0f / MPU9150A.gdt),txt);  updateLabel(&gyroX, ltrim(txt));  IntToStr((int)(MPU9150A.out_gyro.y * 1000.0f / MPU9150A.gdt),txt);  updateLabel(&gyroY, ltrim(txt));  IntToStr((int)(MPU9150A.out_gyro.z * 1000.0f / MPU9150A.gdt),txt);  updateLabel(&gyroZ, ltrim(txt));  // Mag  WordToStr((int)(MPU9150A.mag.x),txt);  updateLabel(&magX, ltrim(txt));  IntToStr((int)(MPU9150A.mag.y),txt);  updateLabel(&magY, ltrim(txt));  IntToStr((int)(MPU9150A.mag.z),txt);  updateLabel(&magZ, ltrim(txt));  //temperature (celsius)  sprintf(txt, "%.2f", MPU9150A.temp);  strcat (txt, " °C");  updateLabel(&lblTemp, ltrim(txt));}

/** * Called when a widget wishes to display its documentation in the * doc window.  If there was already documentation there, that will * be updated before being removed from the view. * * Also call this function if you update the documentation in another * place, such as a properties dialog. Just set overwrite to true. * * Overwrite is used when you believe that the documentation window * is already displaying documentation for the widget you wish to * display. * Overwrite just determines whose version is more up to date. */void DocWindow::showDocumentation(UMLObject * object, bool overwrite){    if (!object) {        reset();        return;    }    if (m_Showing == st_UMLObject && object == m_pUMLObject) {        if (!overwrite) {            return;        }    }    else if (m_Showing == st_UMLWidget && object == m_pUMLWidget->umlObject()) {        if (!overwrite) {            updateDocumentation();        }    }    else {        updateDocumentation(true);    }    m_Showing = st_UMLObject;    m_pUMLObject = object;    m_docTE->setText(m_pUMLObject->doc());    if (m_pUMLObject->baseType() == UMLObject::ot_Folder) {        UMLFolder *folder = m_pUMLObject->asUMLFolder();        updateLabel(folder->localName());    }    else        updateLabel(m_pUMLObject->name());    toForeground();}

void LLPreviewGesture::initDefaultGesture(){	LLScrollListItem* item;	item = addStep("Animation");	LLGestureStepAnimation* anim = (LLGestureStepAnimation*)item->getUserdata();	anim->mAnimAssetID = ANIM_AGENT_HELLO;	anim->mAnimName = "Wave";	updateLabel(item);	item = addStep("Wait");	LLGestureStepWait* wait = (LLGestureStepWait*)item->getUserdata();	wait->mFlags = WAIT_FLAG_ALL_ANIM;	updateLabel(item);	item = addStep("Chat");	LLGestureStepChat* chat_step = (LLGestureStepChat*)item->getUserdata();	chat_step->mChatText = "Hello, avatar!";	updateLabel(item);	// Start with item list selected	mStepList->selectFirstItem();	// this is *new* content, so we are dirty	mDirty = TRUE;}

void ImageWidget::execPrg(QAction *action) {	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));	QString actionText = action->text();	if (actionText.startsWith("Set label")) {		int no = sizeof("Set label to ");		QString labelText = actionText.mid(no -1);		if (labelText == "None")			updateLabel("");		else 			updateLabel(labelText);qDebug() << "Setting label to " + labelText;	} else {		int space = actionText.indexOf(" ");		int no = actionText.left(space).toInt() -1;		InterlaceConfig* conf = InterlaceConfig::getInstance();		QString confCommand = conf->getPrgCommand(no);		QString file = QDir::toNativeSeparators(imageAbsoluteName);		QString command = confCommand.replace("${file}", file);		QProcess *proc = new QProcess();		connect(proc, SIGNAL( finished ( int , QProcess::ExitStatus)), proc, SLOT(deleteLater()));		proc->start(command);		proc->waitForStarted(-1);	}	QApplication::restoreOverrideCursor();}

KisMouseInputEditor::KisMouseInputEditor(QWidget *parent)    : KPushButton(parent), d(new Private){    QWidget *popup = new QWidget();    d->ui = new Ui::KisMouseInputEditor;    d->ui->setupUi(popup);    d->ui->mouseButton->setType(KisInputButton::MouseType);    d->ui->clearModifiersButton->setIcon(KisIconUtils::loadIcon("edit-clear"));    d->ui->clearMouseButton->setIcon(KisIconUtils::loadIcon("edit-clear"));    QWidgetAction *action = new QWidgetAction(this);    action->setDefaultWidget(popup);    QMenu *menu = new QMenu(this);    menu->addAction(action);    setMenu(menu);    QTimer::singleShot(0, this, SLOT(showMenu()));    connect(d->ui->mouseButton, SIGNAL(dataChanged()), SLOT(updateLabel()));    connect(d->ui->modifiersButton, SIGNAL(dataChanged()), SLOT(updateLabel()));    connect(d->ui->clearMouseButton, SIGNAL(clicked(bool)), d->ui->mouseButton, SLOT(clear()));    connect(d->ui->clearModifiersButton, SIGNAL(clicked(bool)), d->ui->modifiersButton, SLOT(clear()));}

void Annotator::pickLabel(void){    uint64_t index = 0;    bool picked = false;    int label = -1;    for(std::vector<QWidget*>::iterator iter=inputs_.begin();iter!=inputs_.end();++iter)    {        MeshPairViewerWidget* w = (MeshPairViewerWidget*)(*iter);        if(picked)w->first_selected().clear();        else {            if(!w->first_selected().empty())            {                label = labels_[index](w->first_selected().back());                picked = true;                w->first_selected().clear();            }        }        QApplication::processEvents();        ++index;    }    if( label >= 0 )    {        updateLabel(label);    }}

void ofxUIMinimalSlider::setParent(ofxUIWidget *_parent){    parent = _parent;             ofxUIRectangle *labelrect = label->getRect();     while(labelrect->width > rect->width)    {        string labelstring = label->getLabel();        string::iterator it;        it=labelstring.end();        it--;         labelstring.erase (it);         label->setLabel(labelstring);    }                if(autoSize || rect->height < label->getPaddingRect()->height)    {        rect->height = label->getPaddingRect()->height;                     }        float h = labelrect->getHeight();     float ph = rect->getHeight(); 	        labelrect->y = (int)(ph*.5 - h*.5);     labelrect->x = padding;     paddedRect->height = rect->height+padding*2.0;      paddedRect->width = rect->width+padding*2.0;      updateLabel(); }	

    //@{    void addClicked()    {        QTreeWidgetItem *newRow = 0;        QList<QTreeWidgetItem*> selectedPaths = m_treeView->selectedItems();        if(selectedPaths.empty())        {            newRow = new QTreeWidgetItem( m_treeView );        }        else        {            newRow = new QTreeWidgetItem();            m_treeView->insertTopLevelItem(m_treeView->indexOfTopLevelItem(selectedPaths.last()) + 1, newRow);        }        if(newRow)        {            newRow->setFlags(newRow->flags() | Qt::ItemIsEditable);            m_adapter.updateToRow(newRow, typename MFAdapter::value_type());            updateLabel();            rebuildRowIndexes();        }        Q_EMIT signalChanged();    }

bool BaseModel::setData(const QModelIndex & index, const QVariant & value, int role){	if(!index.isValid() || role != Qt::EditRole || index.column() != 0)		return false;	switch(value.toInt()) {	case(0):		if(selected_.contains(index))			selected_.remove(index);		break;	case(2):		if(!selected_.contains(index))			selected_ << index;		break;	case(3):		if(selected_.contains(index))			selected_.remove(index);		else			selected_ << index;		break;	}	emit dataChanged(index, index);	emit updateLabel(0);	return true;}

void BaseModel::unselectAll(){	emit layoutAboutToBeChanged();	selected_.clear();	emit updateLabel(0);	emit layoutChanged();}

MumeClockWidget::MumeClockWidget(MumeClock *clock, QWidget *parent)    : QWidget(parent),      m_clock(clock){    setupUi(this);    m_lastSeason = SEASON_UNKNOWN;    m_lastTime = TIME_UNKNOWN;    m_lastPrecision = MUMECLOCK_UNSET;    m_timer = new QTimer(this);    connect(m_timer, SIGNAL(timeout()), this, SLOT(updateLabel()));    m_timer->start(1000);    updateLabel();}

voidQueryLabel::setResult( const Tomahawk::result_ptr& result ){    if ( result.isNull() )        return;    if ( !m_text.isEmpty() && contentsMargins().left() != 0 ) // FIXME: hacky        m_textMargins = contentsMargins();    setContentsMargins( BOXMARGIN * 2, BOXMARGIN / 2, BOXMARGIN * 2, BOXMARGIN / 2);    if ( m_result.isNull() || m_result.data() != result.data() )    {        m_result = result;        m_query = m_result->toQuery();        QList<Tomahawk::result_ptr> rl;        rl << m_result;        m_query->addResults( rl );        updateLabel();        emit textChanged( text() );        emit resultChanged( m_result );    }}

// staticvoid LLPreviewGesture::onCommitAnimationTrigger(LLUICtrl* ctrl, void *data){	LLPreviewGesture* self = (LLPreviewGesture*)data;	LLScrollListItem* step_item = self->mStepList->getFirstSelected();	if (step_item)	{		LLGestureStep* step = (LLGestureStep*)step_item->getUserdata();		if (step->getType() == STEP_ANIMATION)		{			LLGestureStepAnimation* anim_step = (LLGestureStepAnimation*)step;			if (self->mAnimationRadio->getSelectedIndex() == 0)			{				// start				anim_step->mFlags &= ~ANIM_FLAG_STOP;			}			else			{				// stop				anim_step->mFlags |= ANIM_FLAG_STOP;			}			// Update the UI label in the list			updateLabel(step_item);			self->mDirty = TRUE;			self->refresh();		}	}}

// staticvoid LLPreviewGesture::onCommitWait(LLUICtrl* ctrl, void* data){	LLPreviewGesture* self = (LLPreviewGesture*)data;	LLScrollListItem* step_item = self->mStepList->getFirstSelected();	if (!step_item) return;	LLGestureStep* step = (LLGestureStep*)step_item->getUserdata();	if (step->getType() != STEP_WAIT) return;	LLGestureStepWait* wait_step = (LLGestureStepWait*)step;	U32 flags = 0x0;	if (self->mWaitAnimCheck->get()) flags |= WAIT_FLAG_ALL_ANIM;	if (self->mWaitTimeCheck->get()) flags |= WAIT_FLAG_TIME;	wait_step->mFlags = flags;	{		LLLocale locale(LLLocale::USER_LOCALE);		F32 wait_seconds = (F32)atof(self->mWaitTimeEditor->getText().c_str());		if (wait_seconds < 0.f) wait_seconds = 0.f;		if (wait_seconds > 3600.f) wait_seconds = 3600.f;		wait_step->mWaitSeconds = wait_seconds;	}	// Enable the input area if necessary	self->mWaitTimeEditor->setEnabled(self->mWaitTimeCheck->get());	// Update the UI label in the list	updateLabel(step_item);	self->mDirty = TRUE;	self->refresh();}

void CandidateWindowProxy::slotReadyStandardOutput(){    QByteArray output = process->readAllStandardOutput();    QList<QStringList> messageList = parse_messages(QString(output));    for (int i = 0, j = messageList.count(); i < j; i++) {        QStringList message = messageList[i];        QString command = message[0];        if (command == "set_candidate_index") {            uim_set_candidate_index(ic->uimContext(), message[1].toInt());        } else if (command == "set_candidate_index_2") {            candidateIndex = pageIndex * displayLimit + message[1].toInt();            uim_set_candidate_index(ic->uimContext(), candidateIndex);        } else if (command == "set_candwin_active") {            ic->setCandwinActive();        } else if (command == "set_focus_widget") {            setFocusWidget();        } else if (command == "update_label") {            updateLabel();        }#ifdef WORKAROUND_BROKEN_RESET_IN_QT4        else if (command == "shown") {            m_isVisible = true;        } else if (command == "hidden") {            m_isVisible = false;        }#endif    }}

void BowButton::onTouchEnded(Touch *pTouch, Event *event) {	int unlockJewel = 250;	if (this->isTouchedInsert(pTouch)) {		switch (_state) {		case BowButtonState::LOCKED:			if (DATAOPERATOR->getJewel() > unlockJewel && this->isUpgradeEnable()) {				DATAOPERATOR->setJewel(DATAOPERATOR->getJewel() - unlockJewel);				auto parent = dynamic_cast<SelectScene *>(_parent);				parent->updateLabel();				this->unlock();			}			else {				if (DATAOPERATOR->getEffectEnable())					AUDIOENGINE->playEffect(GOLDOVER_EFFECT_NAME);			}			break;		case BowButtonState::UNLOCK_UNSELECTED:			this->select();			_showSprite->setSpriteFrame(_up);			break;		case BowButtonState::UNLOCK_SELECTED:			_showSprite->setSpriteFrame(_up);			break;		default:			break;		}	}}

	void StatusSummaryItem::setCount(uint count) {		if (m_count != count)			emit countChanged();		m_count = count;		updateLabel();	}

void ofxUISlider_<T>::setValue(T _value){    value = ofxUIMap(_value, min, max, 0.0, 1.0, bClampValue);    updateValueRef();    updateLabel();}

Geometry::Geometry(){    setWindowTitle(tr("Geometry"));    label1 = new QLabel;    label1->setText("x():");     label2 = new QLabel;    label2->setText("y():");     label3 = new QLabel;    label3->setText("frameGeometry():");     label4 = new QLabel;    label4->setText("pos():");     label5 = new QLabel;    label5->setText("geometry():");     label6 = new QLabel;    label6->setText("width():");     label7 = new QLabel;    label7->setText("height():");     label8 = new QLabel;    label8->setText("rect():");     label9 = new QLabel;    label9->setText("size():");          xLabel = new QLabel;    yLabel = new QLabel;    frameGeoLabel = new QLabel;    posLabel = new QLabel;    geoLabel = new QLabel;    widthLabel = new QLabel;    heightLabel = new QLabel;    rectLabel = new QLabel;    sizeLabel = new QLabel;          QGridLayout *layout = new QGridLayout(this);    layout->setMargin(20);    layout->setSpacing(10);    int l = 0;    int c = 1;    layout->addWidget(label1,0,l);    layout->addWidget(xLabel,0,c);    layout->addWidget(label2,1,l);    layout->addWidget(yLabel,1,c);    layout->addWidget(label3,2,l);    layout->addWidget(frameGeoLabel,2,c);    layout->addWidget(label4,3,l);    layout->addWidget(posLabel,3,c);    layout->addWidget(label5,4,l);    layout->addWidget(geoLabel,4,c);    layout->addWidget(label6,5,l);    layout->addWidget(widthLabel,5,c);    layout->addWidget(label7,6,l);    layout->addWidget(heightLabel,6,c);    layout->addWidget(label8,7,l);    layout->addWidget(rectLabel,7,c);    layout->addWidget(label9,8,l);    layout->addWidget(sizeLabel,8,c);      updateLabel();}

EmailComposer::EmailComposer( QWidget *parent, const char *name )  : QTextEdit( parent ),    m_index( -1 ){    setObjectName(name);    setFrameStyle(NoFrame);    setSizePolicy( QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Expanding ) );    connect( this, SIGNAL(textChanged()), this, SIGNAL(contentChanged()) );    connect( this, SIGNAL(textChanged()), this, SLOT(updateLabel()) );    setWordWrapMode( QTextOption::WordWrap);    m_addAttDialog = new AddAttDialog(this, "attachmentDialog");    updateLabel();}

SkyLine::SkyLine(SKY_LINE_TYPE _line_type) : color(0.f, 0.f, 1.f){	// Font size is 14	font.setPixelSize(StelApp::getInstance().getBaseFontSize()+1);	line_type = _line_type;	updateLabel();}

void ofxUISlider_<T>::setParent(ofxUIWidget *_parent){	parent = _parent;	label->getRect()->setY(rect->getHeight()+padding);	calculatePaddingRect();	updateValueRef();	updateLabel();}

voidElideLabel::setElideMode(Qt::TextElideMode mode) {  if (mode == m_elideMode)    return;  m_elideMode = mode;  updateLabel();}

void ofxUIRotarySlider::update(){    if(useReference)    {        value = ofxUIMap(*valueRef, min, max, 0.0, 1.0, true);        updateLabel();    }}

void WTrackProperty::slotTrackLoaded(TrackPointer track) {    if (track) {        m_pCurrentTrack = track;        connect(track.data(), SIGNAL(changed(Track*)),                this, SLOT(updateLabel(Track*)));        updateLabel(track.data());    }}

void ofxUISlider_<T>::update(){	if(useReference)	{		value = ofxUIMap(*valueRef, min, max, 0.0, 1.0, bClampValue);		updateLabel();	}}