自学教程：C++ tip函数代码示例

KviIOGraphWidget::KviIOGraphWidget(QWidget * par)    : QWidget(par){	m_uLastSentBytes = g_uOutgoingTraffic;	m_uLastRecvBytes = g_uIncomingTraffic;	m_maxRate = 1;	unsigned int iMax = qMax(m_uLastSentBytes, m_uLastRecvBytes);	while(iMax > m_maxRate)		m_maxRate *= 2;	m_sendRates.prepend(0);	m_recvRates.prepend(0);	QString tip("<font color=/"#FF0000/">");	tip.append(__tr("Outgoing traffic"));	tip.append("</font><br/><font color=/"#0000FF/">");	tip.append(__tr("Incoming traffic"));	tip.append("</font>");	this->setToolTip(tip);	startTimer(1000);}

void WTextCreator::start(){	WGraphicsLayer* layer = scene()->addLayer(WCreatorSettings::instance().layer());	layer->setEditable(true);	scene()->setCurrentLayer(layer);	emit tip("press left button to select text's start point or press right button to cancel");}

QString LiveTemplate::generateTip() const{    static const QLatin1Char kNewLine('/n');    static const QLatin1Char kSpace(' ');    static const QLatin1String kBr("<br>");    static const QLatin1String kNbsp("&nbsp;");    static const QLatin1String kNoBr("<nobr>");    static const QLatin1String kOpenBold("<b>");    static const QLatin1String kCloseBold("</b>");    static const QLatin1String kEllipsis("...");    QString escapedContent(_content.toHtmlEscaped());    escapedContent.replace(kNewLine, kBr);    escapedContent.replace(kSpace, kNbsp);    QString tip(kNoBr);    int count = 0;    for (int i = 0; i < escapedContent.count(); ++i) {        if (escapedContent.at(i) != kVariableDelimiter) {            tip += escapedContent.at(i);            continue;        }        if (++count % 2) {            tip += kOpenBold;        } else {            if (escapedContent.at(i-1) == kVariableDelimiter)                tip += kEllipsis;            tip += kCloseBold;        }    }    return tip;}

void WEllipseCreator::mousePressEvent(WGraphicsSceneMouseEvent* event){	if (event->button() == Ws::RightButton)	{		if (_item)		{			scene()->currentLayer()->removeItem(_item, true);			scene()->currentLayer()->removeItem(_helperItem, true);		}		emit finished(0);		clear();	}	else if (event->button() == Ws::LeftButton)	{		WWorldPointF pos = event->scenePos();		if (_step == 0)		{			WWorldRectF rect(pos.x()-20, pos.y(), 20, 20);			const WCreatorSettings& settings = WCreatorSettings::instance();			_item = scene()->currentLayer()->addEllipse(rect, settings.pen(), settings.brush(), true);			_helperItem = scene()->currentLayer()->addRect(rect, 0.0, WPen(Ws::DashDotDotLine, WColor(0, 0, 255), 1.0), WBrush(), true);			emit geometry(cell_format(*_item));			emit tip("move mouse and release left button to select rectangle's bottom right point or press right button to cancel");			++_step;			}	}}

void HomeScreenController::goToTip(int index){	static QStringList tips;	if (tips.isEmpty())	{		// Normally, this will be read only once.		QFile file(QString::fromLatin1(":/help/tip-of-the-day/tips.txt"));		if (file.open(QIODevice::ReadOnly))		{			while (!file.atEnd())			{				QString tip(QString::fromUtf8(file.readLine().constData()));				if (tip.endsWith(QLatin1Char('/n')))					tip.chop(1);				if (!tip.isEmpty())					tips.push_back(tip);			}		}	}		if (tips.isEmpty())	{		// Some error may have occured during reading the tips file.		// Display a welcome text.		widget->setTipOfTheDay(QString::fromLatin1("<h2>%1</h2>").arg(tr("Welcome to OpenOrienteering Mapper!")));	}	else	{		Q_ASSERT(tips.count() > 0);		while (index < 0)			index += tips.count();		current_tip = index % tips.count();		widget->setTipOfTheDay(tips[current_tip]);	}}

void SyntheticDataGenerator::ReadJointAndTipTrajectory(std::string _jointTipTrajectoryfile,  bool isEMmeasurement){	int numTubes = this->robot->GetNumOfTubes();	this->jointTrajectory.clear();	this->tipTrajectory.clear();	std::vector<::std::string> lineVector = ReadLinesFromFile(_jointTipTrajectoryfile);	for(int i = 0; i < lineVector.size() ; ++i)	{		std::vector<double> doubleLineVector = DoubleVectorFromString(lineVector[i]);		std::vector<double> joint(doubleLineVector.begin(), doubleLineVector.begin() + 2*numTubes+1),							tip(doubleLineVector.begin()+2*numTubes+1, doubleLineVector.end());		// For now, tip has EM tracker frame. EM tracker has been attached on the robot tip		// with its x-axis colinearly aligned to z-axis of robot tip in opposite direction.		// So, the following lines swaps the x- and z-axes with proper signs.		// Note that it doesn't mean 'tip' is the correct tip orientation. It is correct with z-axis,		// but not correct with x- and y- axis.		if(isEMmeasurement)			for(int j = 0 ; j < 3; j++)			{				double temp = tip[3+j];				tip[3+j] = tip[9+j];				tip[9+j] = -temp;			}		this->jointTrajectory.push_back(joint);		this->tipTrajectory.push_back(tip);	}}

bool CalloutPointerItem::autoLocFromLoc(  QPoint loc){  QRect rect(0,             0,             callout->size[XX],             callout->size[YY]);  QPoint intersect;  PlacementEnc tplacement;  QPoint tip(points[Tip].x() + 0.5, points[Tip].y() + 0.5);  if (rectLineIntersect(tip,                        loc,                        rect,                        borderThickness,                        intersect,                        tplacement)) {    placement = tplacement;    points[Base] = intersect;    return true;  }      return false;}

void Cone::updateBufferNormals() {		GLfloat (*N)[3];	int i;	list<Vec4> points;	list<Vec4>::iterator curr, next;	Vec4 normal, tip(0,0,-1,1);		// Initialize	N = new GLfloat[getCount()][3];	points = Math::computeCircle(0.5, getCount() / 3);	points.push_back(Vec4(0.5,0,0,1));		// Fill array	curr = points.begin();	next = ++(points.begin());	while (next != points.end()) {		i = distance(points.begin(), curr) * 3;		normal = cross(tip-*curr, *next-*curr);		for (int j=0; j<3; ++j) {			N[ i ][j] = normal[j];			N[i+1][j] = normal[j];			N[i+2][j] = normal[j];		}		++curr;		++next;	}		// Send to buffer	setBufferData("MCNormal", N);	delete[] N;}

void show(CVideo& video,		  const std::string& window_id,		  const t_string& message,		  const tpoint& mouse){	/*	 * For now allow invalid tip names, might turn them to invalid wml messages	 * later on.	 */	ttip& t = tip();	t.set_window_id(window_id);	t.set_message(message);	t.set_mouse(mouse);	try	{		t.show(video);	}	catch(twindow_builder_invalid_id&)	{		ERR_CFG << "Tip with the requested id '" << window_id				<< "' doesn't exist, fall back to the default./n";		t.set_window_id("tooltip_large");		try		{			t.show(video);		}		catch(twindow_builder_invalid_id&)		{			ERR_CFG << "Default tooltip doesn't exist, no message shown."					<< std::endl;		}	}}

/*******************************************************************************  Displays the full alarm text in a tooltip, if not all the text is displayed.*/void AlarmListTooltip::maybeTip(const QPoint &pt){    AlarmListView *listView = (AlarmListView *)parentWidget()->parentWidget();    int column = listView->column(AlarmListView::MESSAGE_COLUMN);    int xOffset = listView->contentsX();    if(listView->header()->sectionAt(pt.x() + xOffset) == column)    {        AlarmListViewItem *item = (AlarmListViewItem *)listView->itemAt(pt);        if(item)        {            int columnX = listView->header()->sectionPos(column) - xOffset;            int columnWidth = listView->columnWidth(column);            int widthNeeded = item->messageColWidthNeeded();            if(!item->messageTruncated()  &&  columnWidth >= widthNeeded)            {                if(columnX + widthNeeded <= listView->viewport()->width())                    return;            }            QRect rect = listView->itemRect(item);            rect.setLeft(columnX);            rect.setWidth(columnWidth);            kdDebug(5950) << "AlarmListTooltip::maybeTip(): display/n";            tip(rect, AlarmText::summary(item->event(), 10));    // display up to 10 lines of text        }    }}

void main(){	int n;	while(1)	{		tip();		menu();		scanf("%d",&n);		if(n==0)			break;		switch(n)		{		case 1:			benjin();break;		case 2:			fuli();break;		case 3:			danli();break;		case 4:			shijian();break;		case 5:			lilu();break;		case 6:			nianjinzhongzhi();break;		case 7:			dengebenxi();break;		case 0:			n=0;			break; 		}			}}

void WArcCreator::start(){	clear();	WGraphicsLayer* layer = scene()->addLayer(WCreatorSettings::instance().layer());	layer->setEditable(true);	scene()->setCurrentLayer(layer);	emit tip("press left button to select rectangle's top left point or press right button to cancel");}

void SeafileTrayIcon::resetToolTip (){    QString tip("Seafile");    if (!seafApplet->settingsManager()->autoSync())        tip = tr("Auto sync is disabled");    setToolTip(tip);}

void ToolTipManager::Bind(wxWindow *window, wxString tooltip, const char *context, const char *command) {	ToolTipBinding tip(window, tooltip, command, context);	tip.Update();	static ToolTipManager instance;	instance.tips.push_back(tip);	hotkey::inst->AddHotkeyChangeListener(&ToolTipBinding::Update, &instance.tips.back());}

void SeafileTrayIcon::resetToolTip (){    QString tip(SEAFILE_CLIENT_BRAND);    if (!seafApplet->settingsManager()->autoSync()) {        tip = tr("auto sync is disabled");    }    setToolTip(tip);}

	/**	 * Called when the pre-conditions for a tool tip are met.	 * Asks the owner for a tip to display and, if one is returned, shows	 * the tool tip.	 * @param	ptPos	Current mouse position	 */	virtual void maybeTip(const QPoint& ptPos) {		QString sText;		QRect rc;				// Display a tip, if required by the owner		sText = m_pGraphWidget->getTip(ptPos, rc);		if (sText != QString::null)			tip(rc, sText);	}

int main(int argc, char *argv[]){    QApplication a(argc, argv);    TpListener listener;    listener.initConnection();    TipWidget tip("Soulxu", "This is a test message!");    tip.show();    return a.exec();}

void DynamicTip::maybeTip( const QPoint &pos ){    if( tekst.isEmpty())        return;    QRect r = QRect (pos, pos);    tip( r, tekst.fromLocal8Bit(tekst));}

void mmErrorDialogs::InvalidPayee(wxWindow *object){    const wxString& errorHeader = _("Invalid Payee");    const wxString& errorMessage = (_("Please type in a new payee,/nor make a selection using the dropdown button.")        + "/n");    wxRichToolTip tip(errorHeader, errorMessage);    tip.SetIcon(wxICON_WARNING);    tip.ShowFor(object);}

/*!    /fn SnippetWidget::maybeTip( const QPoint & p )    Shows the Snippet-Text as ToolTip */void SnippetWidget::maybeTip( const QPoint & p ){	SnippetItem * item = dynamic_cast<SnippetItem*>( itemAt( p ) );	if (!item)	  return;	QRect r = itemRect( item );	if (r.isValid() &&        _SnippetConfig.useToolTips() )	{        if (dynamic_cast<SnippetGroup*>(item)) {		    tip( r, i18n("Language:")+((SnippetGroup*)item)->getLanguage() );  //show the group's language        } else {		    tip( r, item->getText() );  //show the snippet's text        }	}}

void mmErrorDialogs::InvalidFile(wxWindow *object, bool open){    const wxString errorHeader = open ? _("Unable to open file.") : _("File name is empty.");    const wxString errorMessage = _("Please select the file for this operation.");    wxRichToolTip tip(errorHeader, errorMessage);    tip.SetIcon(wxICON_WARNING);    tip.ShowFor(object);}

void VariableTree::maybeTip(const QPoint &p){    VarItem * item = dynamic_cast<VarItem*>( itemAt(p) );    if (item != 0) {        QRect r = itemRect(item);        if (r.isValid()) {            tip(r, item->tipText());		}    }}

void KbStatusTip::ShowStatus(QString msg){	if ((QCursor::pos().x() > parentWidget()->mapToGlobal(parentWidget()->pos()).x())		&& (QCursor::pos().y() > parentWidget()->mapToGlobal(parentWidget()->pos()).y())		&& (QCursor::pos().x() < (parentWidget()->mapToGlobal(parentWidget()->pos()).x() + parentWidget()->width()))		&& (QCursor::pos().y() < (parentWidget()->mapToGlobal(parentWidget()->pos()).y() + parentWidget()->height())))	{		tip(parentWidget()->rect(), msg);	}}