C++ setUpdatesEnabled函数代码示例

void InterfaceTree::resizeEvent(QResizeEvent *evt)
{
    int max_if_width = width() * 2 / 3; // Arbitrary

    setUpdatesEnabled(false);
    resizeColumnToContents(IFTREE_COL_NAME);
    if (columnWidth(IFTREE_COL_NAME) > max_if_width) {
        setColumnWidth(IFTREE_COL_NAME, max_if_width);
    }

    setUpdatesEnabled(true);

    QTreeWidget::resizeEvent(evt);
}

void QuizFrame::restoreCommentField() {
    setUpdatesEnabled( false );
    action[ ACTION_MAXIMIZE ]->setChecked( false );
    maximizeCommentButton->setChecked( false );
    firstLangPanel->show();
    testLangPanel->show();

    if( containsValidImage() )
        imageBox->show();

    if( !buttonsHidden )
        controlPanel->show();
    setUpdatesEnabled( true );
}

bool KIconEditGrid::zoomTo(int scale)
{
  QApplication::setOverrideCursor(waitCursor);
  emit scalingchanged(cellSize(), false);
  setUpdatesEnabled(false);
  setCellSize( scale );
  setUpdatesEnabled(true);
  emit needPainting();
  QApplication::restoreOverrideCursor();
  emit scalingchanged(cellSize(), true);
  if(scale == 1)
    return false;
  return true;
}

void UiMessageBox::display(const QString &title, const QString &description) {
    setUpdatesEnabled(false);
    ui->choices->setCurrentIndex(2);
    ui->messageLabel->setText(description);
    ui->messageButtons->setStandardButtons(QDialogButtonBox::Ok);
    setWindowTitle(title);
    setUpdatesEnabled(true);

    updateGeometry();
    QRect screen = QApplication::desktop()->screenGeometry();
    move(screen.center() - QPoint(200, 100));
    show();
    raise();
}

void ComboTabBar::removeTab(int index)
{
    if (validIndex(index)) {
        setUpdatesEnabled(false);

        localTabBar(index)->removeTab(toLocalIndex(index));
        updatePinnedTabBarVisibility();
        tabRemoved(index);
        setMinimumWidths();

        setUpdatesEnabled(true);
        updateTabBars();
    }
}

void KomposeFullscreenWidget::destroyChildWidgets()
{
  setUpdatesEnabled( false );
  KomposeWidget *child;
  QPtrListIterator<KomposeWidget> it( *(layout->getManagedWidgets()));
  while ( (child = it.current()) != 0 )
  {
    ++it;
    layout->remove(child);
    dynamic_cast<QWidget*>(child)->deleteLater();
  }
  setUpdatesEnabled( true );
  kdDebug() << "KomposeFullscreenWidget::destroyChildWidgets() - all children destroyed" << endl;
}

void Playlist::appendTracks( const QList<Track*> tracks )
{
    // a week attempt to speed up the setItemWidget time issue
    setUpdatesEnabled(false);
    bool doSort = isSortingEnabled();
    setSortingEnabled(false);
    hide();

    appendTracks( tracks,(PlaylistItem*)lastChild());

    setSortingEnabled(doSort);
    setUpdatesEnabled(true);
    show();
}

// this is an eventfilter for the KTabListBoxTable which holds all
// of the todo items.
bool TodoView::eventFilter(QObject *, QEvent *event)
{
  if (event->type() == Event_MouseButtonPress) {
    QMouseEvent *e = (QMouseEvent *) event;
    setUpdatesEnabled(FALSE);
    doMouseEvent(e);
    setUpdatesEnabled(TRUE);
    return TRUE;
  }
  if (event->type() == Event_Resize) {
      adjustColumns();
  }
  return FALSE;
}

void KonqCombo::updatePixmaps()
{
    saveState();

    setUpdatesEnabled( false );
    KonqPixmapProvider *prov = KonqPixmapProvider::self();
    for ( int i = 1; i < count(); i++ ) {
        setItemIcon( i, prov->pixmapFor( itemText( i ) ) );
    }
    setUpdatesEnabled( true );
    repaint();

    restoreState();
}

//! Remove all items.
void QwtLegend::clear()
{
#if QT_VERSION < 0x040000
    bool doUpdate = isUpdatesEnabled();
#else
    bool doUpdate = updatesEnabled();
#endif
    setUpdatesEnabled(false);

    d_data->map.clear();

    setUpdatesEnabled(doUpdate);
    update();
}

void GuiDialog::updateView()
{
	setUpdatesEnabled(false);

	bc().setReadOnly(isBufferReadonly());
	// protect the BC from unwarranted state transitions
	updating_ = true;
	updateContents();
	updating_ = false;
	// The widgets may not be valid, so refresh the button controller
	bc().refresh();

	setUpdatesEnabled(true);
}

void ImportASCIIDialog::updateImportMode(int mode)
{
	setUpdatesEnabled(false);

	if (mode == Overwrite)
		setFileMode( QFileDialog::ExistingFile );
	else
		setFileMode( QFileDialog::ExistingFiles );

	initPreview(mode);

	setUpdatesEnabled(true);
	repaint();
}

void
NowPlayingWidget::onStopped()
{
    setUpdatesEnabled( false );

    if ( m_metadata )
    {
        layout()->removeWidget( m_metadata );
        m_metadata->deleteLater();
        qobject_cast<QVBoxLayout*>(layout())->addStretch( 1 );
    }

    setUpdatesEnabled( true );
}

void QYLineNumbers::setLineCount( int lines )
{
    setUpdatesEnabled(false);
    if ( mRows->count() > lines ) {
        QLayoutItem* row;
        while ( (row = mRows->takeAt(lines)) ) {
            delete row;
        }
    } else {
        for ( int i = mRows->count(); i < lines; ++i ) {
            mRows->addWidget( new QYNumberLabel( font() ) );
        }
    }
    setUpdatesEnabled(true);
}

void MainWindow::addTab(TabbedWidget* tab)
{
	if(!tab->beginSetup()) return;
	addLookup(tab);
	setUpdatesEnabled(false);
	int tabNum = ui_tabWidget->addTab(tab->widget(), QString::fromAscii(""));
	ui_tabWidget->setCurrentIndex(tabNum);
	setUpdatesEnabled(true);
	tab->completeSetup();
	moveToTab(tab);
	
	QObject::connect(this, SIGNAL(settingsUpdated()), tab->widget(), SLOT(refreshSettings()));
	
	emit updateActivatable();
}