C++ QProgressBar::minimum方法代码示例

/*!
    Sets the current value to \a value.

    \bold {Note:} Calling this slot by hand has no effect.
    Connect this slot to QProgressBar::valueChange().
 */
void QxtProgressLabel::setValue(int value)
{
    QProgressBar* bar = qobject_cast<QProgressBar*>(sender());
    if (bar)
    {
        if (!qxt_d().start.isValid())
            restart();

        qxt_d().cachedMin = bar->minimum();
        qxt_d().cachedMax = bar->maximum();
        qxt_d().cachedVal = value;

        refresh();
    }
}

void PinDialog::init( PinFlags flags, const QString &title, TokenData::TokenFlags token )
{
	setMinimumWidth( 350 );
	setWindowModality( Qt::ApplicationModal );

	QLabel *label = new QLabel( this );
	QVBoxLayout *l = new QVBoxLayout( this );
	l->addWidget( label );

	QString _title = title;
	QString text;

	if( token & TokenData::PinFinalTry )
		text += "<font color='red'><b>" + tr("PIN will be locked next failed attempt") + "</b></font><br />";
	else if( token & TokenData::PinCountLow )
		text += "<font color='red'><b>" + tr("PIN has been entered incorrectly one time") + "</b></font><br />";

	text += QString( "<b>%1</b><br />" ).arg( title );
	if( flags & Pin2Type )
	{
		_title = tr("Signing") + " - " + title;
		text += tr("Selected action requires sign certificate.") + "<br />" +
			(flags & PinpadFlag ?
				tr("For using sign certificate enter PIN2 with pinpad") :
				tr("For using sign certificate enter PIN2") );
		regexp.setPattern( "\\d{5,12}" );
	}
	else
	{
		_title = tr("Authendicating") + " - " + title;
		text += tr("Selected action requires auth certificate.") + "<br />" +
			(flags & PinpadFlag ?
				tr("For using auth certificate enter PIN1 with pinpad") :
				tr("For using auth certificate enter PIN1") );
		regexp.setPattern( "\\d{4,12}" );
	}
	setWindowTitle( _title );
	label->setText( text );

	if( flags & PinpadFlag )
	{
		setWindowFlags( (windowFlags() | Qt::CustomizeWindowHint) & ~Qt::WindowCloseButtonHint );
		QProgressBar *progress = new QProgressBar( this );
		progress->setRange( 0, 30 );
		progress->setValue( progress->maximum() );
		progress->setTextVisible( false );
		l->addWidget( progress );
		QTimeLine *statusTimer = new QTimeLine( progress->maximum() * 1000, this );
		statusTimer->setCurveShape( QTimeLine::LinearCurve );
		statusTimer->setFrameRange( progress->maximum(), progress->minimum() );
		connect( statusTimer, SIGNAL(frameChanged(int)), progress, SLOT(setValue(int)) );
		connect( this, SIGNAL(startTimer()), statusTimer, SLOT(start()) );
	}
	else
	{
		m_text = new QLineEdit( this );
		m_text->setEchoMode( QLineEdit::Password );
		m_text->setFocus();
		m_text->setValidator( new QRegExpValidator( regexp, m_text ) );
		connect( m_text, SIGNAL(textEdited(QString)), SLOT(textEdited(QString)) );
		l->addWidget( m_text );

		QDialogButtonBox *buttons = new QDialogButtonBox(
			QDialogButtonBox::Ok|QDialogButtonBox::Cancel, Qt::Horizontal, this );
		ok = buttons->button( QDialogButtonBox::Ok );
		ok->setAutoDefault( true );
		connect( buttons, SIGNAL(accepted()), SLOT(accept()) );
		connect( buttons, SIGNAL(rejected()), SLOT(reject()) );
		l->addWidget( buttons );

		textEdited( QString() );
	}
}

void
Progress::timerEvent(QTimerEvent * event)
{
    if (event->timerId() != timer.timerId() || noAnimations())
        return;

    //Update the registered progressbars.
    Items::iterator iter;
    QProgressBar *pb;
    bool mkProper = false;
    animationUpdate = true;
    for (iter = items.begin(); iter != items.end(); iter++)
    {
        QWidget *w = const_cast<QWidget*>(iter.key().data());
        if (!w) // not a progressbar - shouldn't be in items, btw...
            { mkProper = true; continue; }

        pb = qobject_cast<QProgressBar*>(w);
        if (!pb)
            continue; // not a progressbar - shouldn't be in items, btw...

        if (pb->maximum() != 0 || pb->minimum() != 0 || pb->paintingActive() || !pb->isVisible())
        {
            pb->setAttribute(Qt::WA_OpaquePaintEvent, false);
            continue; // no paint necessary
        }

        pb->setAttribute(Qt::WA_OpaquePaintEvent);

        ++iter.value();

        // dump pb geometry
        int x,y,l,t, *step = &iter.value()._step;
        if ( pb->orientation() == Qt::Vertical ) // swapped values
            pb->rect().getRect(&y,&x,&t,&l);
        else
            pb->rect().getRect(&x,&y,&l,&t);

        if (*step > l/_speed)
            *step = l/36-(int)(l/_speed);
        else if (*step == -1)
            *step = l/36-1;

        int s = qMin(qMax(l / 10, 16), qMin(t, 20));
        int ss = (3*s)/4;
        int n = l/s;
        if ( pb->orientation() == Qt::Vertical)
            { x = pb->rect().bottom(); x -= (l - n*s)/2 + ss; /*s = -s;*/ }
        else
            { x += (l - n*s)/2; /*s = qAbs(s);*/ }

        x += qMax((int)(_speed*qAbs(*step)*n*s/l) - s, 0);
        if ( pb->orientation() == Qt::Vertical )
            pb->repaint(y,x-s,s,3*s);
        else
            pb->repaint(x-s,y,3*s,s);
    }
    animationUpdate = false;
    if (mkProper)
        _release(NULL);
}