C++ QObjectList::at方法代码示例

void DkTransferToolBar::enableToolBar(bool enable) {

	QObjectList list = this->children();

	for (int i = 0; i < list.count(); i++) {
		if (QWidget *action = qobject_cast<QWidget*>(list.at(i)))
			action->setEnabled(enable);
	}
	
	if (enable)
		mEffect->setOpacity(1);
	else
		mEffect->setOpacity(.5);

}

void YGWidget::deleteAllSubuis()
{
    QObjectList childList = children();
    if(!childList.isEmpty())
    {
        for (int i = 0; i < childList.size(); ++i)
        {
            YGWidget* wgt = qobject_cast<YGWidget*>(childList.at(i));
            if(wgt)
            {
                wgt->deleteLater();
            }
        }
    }
}

void MainWindow::setWindowStatus()
{
    //Set window title
    QString title;
    //title = QString("%1").arg(CInfo::AppNameShort());
    title = QString("Visualize and Process");
    setWindowTitle(title);

    //Set status bar
    //Set data file informations
    if(m_pDataWindow->getDataModel()->m_bFileloaded) {
        int idx = m_qFileRaw.fileName().lastIndexOf("/");
        QString filename = m_qFileRaw.fileName().remove(0,idx+1);
        title = QString("Data file: %1  /  First sample: %2  /  Sample frequency: %3Hz").arg(filename).arg(m_pDataWindow->getDataModel()->firstSample()).arg(m_pDataWindow->getDataModel()->m_fiffInfo.sfreq);
    }
    else
        title = QString("No data file");

    //Set event file informations
    if(m_pEventWindow->getEventModel()->m_bFileloaded) {
        int idx = m_qEventFile.fileName().lastIndexOf("/");
        QString filename = m_qEventFile.fileName().remove(0,idx+1);

        title.append(QString("  -  Event file: %1").arg(filename));
    }
    else
        title.append("  -  No event file");

    //Set evoked file informations
    if(m_pAverageWindow->getAverageModel()->m_bFileloaded) {
        int idx = m_qEvokedFile.fileName().lastIndexOf("/");
        QString filename = m_qEvokedFile.fileName().remove(0,idx+1);

        title.append(QString("  -  Evoked file: %1").arg(filename));
    }
    else
        title.append("  -  No evoked file");

    //Add permanent widget to status bar after deleting old one
    QObjectList cildrenList = statusBar()->children();

    for(int i = 0; i< cildrenList.size(); i++)
        statusBar()->removeWidget((QWidget*)cildrenList.at(i));

    QLabel* label = new QLabel(title);
    statusBar()->addWidget(label);
}

static bool isChildOf(QWidget* child, QWidget *parent)
{
    if (!child)
        return false;
    QObjectList list = parent->children();
    for (int i = 0; i < list.size(); ++i) {
        QObject *obj = list.at(i);
        if (!obj->isWidgetType())
            continue;
        QWidget *widget = static_cast<QWidget *>(obj);
        if (!widget->isWindow())
            continue;
        if (widget == child || isChildOf(child, widget))
            return true;
    }
    return false;
}

void QSAEditor::completeQObject(const QVector<QObject *> &objects,
                                    const QString &object,
                                    QVector<CompletionEntry> &res)
{
    for ( int i = 0; i < objects.count(); i++ ) {
        QObject *qobj = objects[ i ];
        if ( !qobj )
            continue;
        // children
        QObjectList clist;
        if ( qobj == qApp )
            clist = interpreter()->topLevelObjects() != 0 ?
                    *((QObjectList*)interpreter()->topLevelObjects()) :
                    QObjectList();
        else
            clist = qobj->children();

        if ( !clist.isEmpty() ) {
            for (int ci = 0; ci<clist.size(); ++ci) {
                const QObject *o = clist.at(ci);
                CompletionEntry c;
                c.type = o->isWidgetType() ? "widget" : "object";
                c.text = o->objectName();
                c.postfix2 = o->metaObject()->className();
                if ( !c.postfix2.isEmpty() )
                    c.postfix2.prepend( QString::fromLatin1(" : ") );
                res << c;
            }
        }

        QSObject qsobj = interpreter()->wrap( qobj );
        int flags = 0;
        if ( i == 0 )
            flags |= IncludeSuperClass;
        completeQMetaObject( qobj->metaObject(),
                             object,
                             res,
                             flags,
                             qsobj
                             );

    }
}

/*
  sets all children of the group box except the qt_groupbox_checkbox
  to either disabled/enabled
*/
void QGroupBoxPrivate::_q_setChildrenEnabled(bool b)
{
    Q_Q(QGroupBox);
    QObjectList childList = q->children();
    for (int i = 0; i < childList.size(); ++i) {
        QObject *o = childList.at(i);
        if (o->isWidgetType()) {
            QWidget *w = static_cast<QWidget *>(o);
            if (b) {
                if (!w->testAttribute(Qt::WA_ForceDisabled))
                    w->setEnabled(true);
            } else {
                if (w->isEnabled()) {
                    w->setEnabled(false);
                    w->setAttribute(Qt::WA_ForceDisabled, false);
                }
            }
        }
    }
}

/*!
    \reimp
*/
QSize QSplitter::sizeHint() const
{
    Q_D(const QSplitter);
    ensurePolished();
    int l = 0;
    int t = 0;
    QObjectList childList = children();
    for (int i = 0; i < childList.size(); ++i) {
        if (QWidget *w = qobject_cast<QWidget *>(childList.at(i))) {
            if (w->isHidden())
                continue;
            QSize s = w->sizeHint();
            if (s.isValid()) {
                l += d->pick(s);
                t = qMax(t, d->trans(s));
            }
        }
    }
    return orientation() == Qt::Horizontal ? QSize(l, t) : QSize(t, l);
}

void WidgetSizeHelper::setDefaultFontSize(QWidget* pWidget) {

    // we get all of pWidget's children
    QObjectList children = pWidget->children();

    // for each child
    for ( int i = 0; i < children.length(); i++ ) {

        /*
         * we change its font size if it is of one of those types
         *
         *  - QLabel
         *  - QLineEdit
         *  - QRadioButton
         *  - QGroupBox
         *  - QCheckBox
         *  - QStatusBar
         */
        QWidget* pChild = static_cast<QWidget*> ( children.at(i) );

        if (  qobject_cast<QLabel*>(pChild) != NULL         ||
              qobject_cast<QLineEdit*>(pChild) != NULL      ||
              qobject_cast<QRadioButton*>(pChild) != NULL   ||
              qobject_cast<QGroupBox*>(pChild) != NULL      ||
              qobject_cast<QCheckBox*>(pChild) != NULL      ||
              qobject_cast<QStatusBar*>(pChild) != NULL )
        {
            QFont lFont = pChild->font();
            lFont.setPointSize(Constants::MAC_FONT_SIZE);
            pChild->setFont(lFont);
        }

        // and scan it, if it has children
        if (  ! pChild->children().isEmpty() ) {

            setDefaultFontSize( pChild );
        }
    }
}

void BasketStatusBar::setupStatusBar()
{
    QWidget* parent = statusBar();
    QObjectList lst = parent->findChildren<QObject*>("KRSqueezedTextLabel");

    //Tools::printChildren(parent);
    if (lst.count() == 0) {
        m_basketStatus = new QLabel(parent);
        QSizePolicy policy(QSizePolicy::Ignored, QSizePolicy::Ignored);
        policy.setHorizontalStretch(0);
        policy.setVerticalStretch(0);
        policy.setHeightForWidth(false);
        m_basketStatus->setSizePolicy(policy);
        addWidget(m_basketStatus, 1, false);  // Fit all extra space and is hiddable
    } else
        m_basketStatus = static_cast<QLabel*>(lst.at(0));
    lst.clear();

    m_selectionStatus = new QLabel(i18n("Loading..."), parent);
    addWidget(m_selectionStatus, 0, true);

    m_lockStatus = new QLabel(0/*this*/);
    m_lockStatus->setMinimumSize(18, 18);
    m_lockStatus->setAlignment(Qt::AlignCenter);
//  addWidget( m_lockStatus, 0, true );
    m_lockStatus->installEventFilter(this);

    m_savedStatusPixmap = SmallIcon("document-save");
    m_savedStatus = new QLabel(parent);
    m_savedStatus->setPixmap(m_savedStatusPixmap);
    m_savedStatus->setFixedSize(m_savedStatus->sizeHint());
    m_savedStatus->clear();
    //m_savedStatus->setPixmap(m_savedStatusIconSet.pixmap(QIconSet::Small, QIconSet::Disabled));
    //m_savedStatus->setEnabled(false);
    addWidget(m_savedStatus, 0, true);
    m_savedStatus->setToolTip("<p>" + i18n("Shows if there are changes that have not yet been saved."));


}

void QWidgetResizeHandler::setMouseCursor(MousePosition m)
{
#ifdef QT_NO_CURSOR
    Q_UNUSED(m);
#else
    QObjectList children = widget->children();
    for (int i = 0; i < children.size(); ++i) {
        if (QWidget *w = qobject_cast<QWidget*>(children.at(i))) {
            if (!w->testAttribute(Qt::WA_SetCursor)) {
                w->setCursor(Qt::ArrowCursor);
            }
        }
    }

    switch (m) {
    case TopLeft:
    case BottomRight:
        widget->setCursor(Qt::SizeFDiagCursor);
        break;
    case BottomLeft:
    case TopRight:
        widget->setCursor(Qt::SizeBDiagCursor);
        break;
    case Top:
    case Bottom:
        widget->setCursor(Qt::SizeVerCursor);
        break;
    case Left:
    case Right:
        widget->setCursor(Qt::SizeHorCursor);
        break;
    default:
        widget->setCursor(Qt::ArrowCursor);
        break;
    }
#endif // QT_NO_CURSOR
}

static QString buddyString(const QWidget *widget)
{
    if (!widget)
        return QString();
    QWidget *parent = widget->parentWidget();
    if (!parent)
        return QString();
#ifndef QT_NO_SHORTCUT
    QObjectList ol = parent->children();
    for (int i = 0; i < ol.size(); ++i) {
        QLabel *label = qobject_cast<QLabel*>(ol.at(i));
        if (label && label->buddy() == widget)
            return label->text();
    }
#endif

#ifndef QT_NO_GROUPBOX
    QGroupBox *groupbox = qobject_cast<QGroupBox*>(parent);
    if (groupbox)
        return groupbox->title();
#endif

    return QString();
}

/*!
    \reimp
*/
void Q3WidgetStack::setVisible(bool visible)
{
    if (visible) {
        //  Reimplemented in order to set the children's geometries
        //  appropriately and to pick the first widget as d->topWidget if no
        //  topwidget was defined
        QObjectList c = children();
        if (!isVisible() && !c.isEmpty()) {
            for (int i = 0; i < c.size(); ++i) {
                QObject * o = c.at(i);
                if (o->isWidgetType()) {
                    if (!topWidget && o != invisible)
                        topWidget = static_cast<QWidget*>(o);
                    if (o == topWidget)
                        static_cast<QWidget *>(o)->show();
                    else
                        static_cast<QWidget *>(o)->hide();
                }
            }
            setChildGeometries();
        }
    }
    Q3Frame::setVisible(visible);
}

/*!
  Creates an unit group. Usually done with CTRL+number.
  */
void CcfQmlBaseScenario::groupUnits(int groupNumber)
{
    if ((groupNumber < 0) || (selectedUnitsCount() == 0)) {
        return;
    }

    // Remove old members.
    if (groupNumber < mUnitGroups.count()) {
        for (int i = 0; i < mUnitGroups.value(groupNumber).length(); ++i) {
            if (mUnitGroups.value(groupNumber).at(i)->getBool("selected") == false)
                mUnitGroups.value(groupNumber).at(i)->set("groupNumber", 0);
        }
    }

    QObjectList group = selectedUnits();
    mUnitGroups.insert(groupNumber, group);

    for (int i = 0; i < group.length(); ++i) {
        group.at(i)->set("groupNumber", groupNumber);
    }

    //    console.log("Group " + groupNumber + " created.");
    mlogger->statusMessage(tr("Group %1 created.").arg(groupNumber));
}

void
CQGroupBox::
updateCollapsed()
{
  //area_->setVisible(isCollapsed());

  QObjectList childList = children();

  for (int i = 0; i < childList.size(); ++i) {
    QObject *o = childList.at(i);

    if (! o->isWidgetType()) continue;

    QWidget *w = static_cast<QWidget *>(o);

    w->setVisible(! isCollapsed());
  }

  QSize size = this->size();

  size.setHeight(minimumSizeHint().height());

  resize(size);
}

void Q3WidgetStack::raiseWidget(QWidget *w)
{
    if (!w || w == invisible || w->parent() != this || w == topWidget)
        return;

    if (id(w) == -1)
        addWidget(w);
    if (!isVisible()) {
        topWidget = w;
        return;
    }

    if (w->maximumSize().width() < invisible->width()
            || w->maximumSize().height() < invisible->height())
        invisible->setBackgroundMode(backgroundMode());
    else if (invisible->backgroundMode() != NoBackground)
        invisible->setBackgroundMode(NoBackground);

    if (invisible->isHidden()) {
        invisible->setGeometry(contentsRect());
        invisible->lower();
        invisible->show();
        QApplication::sendPostedEvents(invisible, QEvent::ShowWindowRequest);
    }

    // try to move focus onto the incoming widget if focus
    // was somewhere on the outgoing widget.
    if (topWidget) {
        QWidget * fw = window()->focusWidget();
        if (topWidget->isAncestorOf(fw)) { // focus was on old page
            // look for the best focus widget we can find
            QWidget *p = w->focusWidget();
            if (!p) {
                // second best == first child widget in the focus chain
                QWidget *i = fw;
                while ((i = i->nextInFocusChain()) != fw) {
                    if (((i->focusPolicy() & Qt::TabFocus) == Qt::TabFocus)
                            && !i->focusProxy() && i->isVisibleTo(w) && i->isEnabled()
                            && w->isAncestorOf(i)) {
                        p = i;
                        break;
                    }
                }
            }
            if (p)
                p->setFocus();
        } else {
            // the focus wasn't on the old page, so we have to ensure focus doesn't go to
            // the widget in the page that last had focus when we show the page again.
            QWidget *oldfw = topWidget->focusWidget();
            if (oldfw)
                oldfw->clearFocus();
        }
    }

    if (isVisible()) {
        emit aboutToShow(w);
        int i = id(w);
        if (i != -1)
            emit aboutToShow(i);
    }

    topWidget = w;

    QObjectList c = children();
    for (int i = 0; i < c.size(); ++i) {
        QObject * o = c.at(i);
        if (o->isWidgetType() && o != w && o != invisible)
            static_cast<QWidget *>(o)->hide();
    }

    w->setGeometry(invisible->geometry());
    w->show();
}