/*!
Qt::MidButton zooms out one position on the zoom stack,
Qt::RightButton to the zoom base.
Changes the current position on the stack, but doesn't pop
any rectangle.
\note The mouse events can be changed, using
QwtEventPattern::setMousePattern: 2, 1
*/
void QwtPlotZoomer::widgetMouseReleaseEvent( QMouseEvent *me )
{
if ( mouseMatch( MouseSelect2, me ) )
zoom( 0 );
else if ( mouseMatch( MouseSelect3, me ) )
zoom( -1 );
else if ( mouseMatch( MouseSelect6, me ) )
zoom( +1 );
else
QwtPlotPicker::widgetMouseReleaseEvent( me );
}
/*!
\brief Compare a mouse event with an event pattern.
A mouse event matches the pattern when both have the same button
value and in the state value the same key flags(Qt::KeyButtonMask)
are set.
\param code Index of the event pattern
\param event Mouse event
\return true if matches
\sa keyMatch()
*/
bool QwtEventPattern::mouseMatch( MousePatternCode code,
const QMouseEvent *event ) const
{
if ( code >= 0 && code < MousePatternCount )
return mouseMatch( d_mousePattern[ code ], event );
return false;
}
/*!
\brief Compare a mouse event with an event pattern.
A mouse event matches the pattern when both have the same button
value and in the state value the same key flags(Qt::KeyButtonMask)
are set.
\param pattern Index of the event pattern
\param e Mouse event
\return true if matches
\sa keyMatch()
*/
bool QwtEventPattern::mouseMatch(uint pattern, const QMouseEvent *e) const
{
bool ok = false;
if ( e && pattern < (uint)d_mousePattern.count() )
ok = mouseMatch(d_mousePattern[int(pattern)], e);
return ok;
}
void PlotZoomer::widgetMouseReleaseEvent(QMouseEvent *event)
{
if (mouseMatch(MouseSelect3, event))
{
// Panner handles middle button.
return;
}
QwtPlotZoomer::widgetMouseReleaseEvent(event);
if (mouseMatch(MouseSelect2, event))
{
if (_contextMenuExpectedSeq == _contextMenuSequenceNumber)
{
++_contextMenuSequenceNumber;
zoomToFit();
}
}
}
void PlotZoomer::widgetMousePressEvent(QMouseEvent *event)
{
if (mouseMatch(MouseSelect2, event))
{
_contextMenuExpectedSeq = ++_contextMenuSequenceNumber;
//QTimer::singleShot(_contextMenuTimeMs, this, &PlotZoomer::contextMenuTimeout);
QTimer::singleShot(_contextMenuTimeMs, this, SLOT(contextMenuTimeout()));
}
Super::widgetMousePressEvent(event);
}