bool RangeProfilePlotManager::wheelEvent(PlotView* pView, QWheelEvent* pEvent)
{
double scaleAdjust = pEvent->delta() / 1440.0; // yup, a magic number, started with one full rotation to double
// then experimented until I got something that looked good
scaleAdjust = (scaleAdjust < 0.0) ? (-1.0 - scaleAdjust) : (1.0 - scaleAdjust);
std::list<PlotObject*> selected;
pView->getSelectedObjects(selected, true);
for (std::list<PlotObject*>::iterator obj = selected.begin(); obj != selected.end(); ++obj)
{
PointSet* pSet = dynamic_cast<PointSet*>(*obj);
if (pSet != NULL)
{
double minX, minY, maxX, maxY;
pSet->getExtents(minX, minY, maxX, maxY);
double shift = minY;
std::vector<Point*> points = pSet->getPoints();
for (std::vector<Point*>::iterator point = points.begin(); point != points.end(); ++point)
{
LocationType loc = (*point)->getLocation();
loc.mY -= shift;
if (scaleAdjust < 0.0)
{
loc.mY *= fabs(scaleAdjust);
}
else
{
loc.mY /= scaleAdjust;
}
loc.mY += shift;
(*point)->setLocation(loc);
}
}
}
pView->refresh();
return false;
}
