/*!
\brief Mouse press event handler
Start movement of the wheel.
\param event Mouse event
*/
void QwtWheel::mousePressEvent( QMouseEvent *event )
{
stopFlying();
d_data->isScrolling = wheelRect().contains( event->pos() );
if ( d_data->isScrolling )
{
d_data->time.start();
d_data->speed = 0.0;
d_data->mouseValue = valueAt( event->pos() );
d_data->mouseOffset = d_data->mouseValue - d_data->value;
d_data->pendingValueChanged = false;
Q_EMIT wheelPressed();
}
}
void
SoQtThumbWheel::mousePressEvent(QMouseEvent * event)
{
if (this->state != SoQtThumbWheel::Idle)
return;
if (event->button() != Qt::LeftButton)
return;
QRect wheelrect;
if (this->orient == Vertical) {
wheelrect.setLeft(SHADEBORDERWIDTH + 3);
wheelrect.setTop(SHADEBORDERWIDTH + 6);
wheelrect.setRight(this->width() - SHADEBORDERWIDTH - 3);
wheelrect.setBottom(this->height() - SHADEBORDERWIDTH - 6);
} else {
wheelrect.setLeft(SHADEBORDERWIDTH + 6);
wheelrect.setTop(SHADEBORDERWIDTH + 3);
wheelrect.setRight(this->width() - SHADEBORDERWIDTH - 6);
wheelrect.setBottom(this->height() - SHADEBORDERWIDTH - 3);
}
if (!wheelrect.contains(event->pos()))
return;
this->state = SoQtThumbWheel::Dragging;
if (this->orient == SoQtThumbWheel::Vertical)
this->mouseDownPos = event->pos().y() - SHADEBORDERWIDTH - 6;
else
this->mouseDownPos = event->pos().x() - SHADEBORDERWIDTH - 6;
this->mouseLastPos = this->mouseDownPos;
emit wheelPressed();
}