void CurveTracker::transition(const QEvent* event)
{
QEvent::Type t = event->type();
switch(event->type()) {
case QEvent::MouseButtonPress:
{
const QMouseEvent *me =
static_cast< const QMouseEvent * >( event );
if(me->button() == Qt::RightButton)
return;
if(this->pickedPoints().count() > 0) {
QPoint p = pickedPoints().at(0);
int x1 = p.x();
int x2 = me->pos().x();
if(abs(x1 - x2) < 5)
QwtPlotPicker::transition(event);
}
break;
}
default: {
QwtPlotPicker::transition(event);
}
}
}
void AdvPlotZoomer::drawRubberBand( QPainter *painter ) const
{
if ( !isActive() || rubberBandPen().style() == Qt::NoPen )
return;
QwtPickerMachine::SelectionType selectionType =
QwtPickerMachine::NoSelection;
if ( stateMachine() )
selectionType = stateMachine()->selectionType();
if ( d_zoomConstrain == NoConstrain || rubberBand() != RectRubberBand ) {
QwtPlotZoomer::drawRubberBand(painter);
return;
}
const QRect &pRect = pickArea().boundingRect().toRect();
const QPolygon &pa = pickedPoints();
const int npa = pa.count();
switch ( d_zoomConstrain ) {
case HZoomOnly:
if ( npa >= 1 )
QwtPainter::drawLine(painter, pa[0].x(), pRect.top(), pa[0].x(),
pRect.bottom());
if ( npa >= 2 )
QwtPainter::drawLine(painter, pa[1].x(), pRect.top(), pa[1].x(),
pRect.bottom());
break;
case VZoomOnly:
if ( npa >= 1 )
QwtPainter::drawLine(painter, pRect.left(), pa[0].y(),
pRect.right(), pa[0].y());
if ( npa >= 2 )
QwtPainter::drawLine(painter, pRect.left(), pa[1].y(),
pRect.right(), pa[1].y());
break;
default:
// Nothing to be done here
break;
}
}
