MatrixTool::FollowMode
MatrixMover::handleMouseMove(const MatrixMouseEvent *e)
{
if (!e) return NoFollow;
MATRIX_DEBUG << "MatrixMover::handleMouseMove() snapped time = "
<< e->snappedLeftTime << endl;
setBasicContextHelp(e->modifiers & Qt::ControlModifier);
if (!m_currentElement || !m_currentViewSegment) return NoFollow;
if (getSnapGrid()->getSnapSetting() != SnapGrid::NoSnap) {
setContextHelp(tr("Hold Shift to avoid snapping to beat grid"));
} else {
clearContextHelp();
}
timeT newTime = m_currentElement->getViewAbsoluteTime() +
(e->snappedLeftTime - m_clickSnappedLeftTime);
int newPitch = e->pitch;
emit hoveredOverNoteChanged(newPitch, true, newTime);
// get a basic pitch difference calculation comparing the current element's
// pitch to the clicked pitch (this does not take the transpose factor into
// account, so in a -9 segment, the initial result winds up being 9
// semitones too low)
using BaseProperties::PITCH;
int diffPitch = 0;
if (m_currentElement->event()->has(PITCH)) {
diffPitch = newPitch - m_currentElement->event()->get<Int>(PITCH);
}
EventSelection* selection = m_scene->getSelection();
// factor in transpose to adjust the height calculation
long pitchOffset = selection->getSegment().getTranspose();
diffPitch += (pitchOffset * -1);
for (EventSelection::eventcontainer::iterator it =
selection->getSegmentEvents().begin();
it != selection->getSegmentEvents().end(); ++it) {
MatrixElement *element = 0;
ViewElementList::iterator vi = m_currentViewSegment->findEvent(*it);
if (vi != m_currentViewSegment->getViewElementList()->end()) {
element = static_cast<MatrixElement *>(*vi);
}
if (!element) continue;
timeT diffTime = element->getViewAbsoluteTime() -
m_currentElement->getViewAbsoluteTime();
int epitch = 0;
if (element->event()->has(PITCH)) {
epitch = element->event()->get<Int>(PITCH);
}
element->reconfigure(newTime + diffTime,
element->getViewDuration(),
epitch + diffPitch);
element->setSelected(true);
}
if (newPitch != m_lastPlayedPitch) {
long velocity = m_widget->getCurrentVelocity();
m_currentElement->event()->get<Int>(BaseProperties::VELOCITY, velocity);
m_scene->playNote(m_currentViewSegment->getSegment(), newPitch + (pitchOffset * -1), velocity);
m_lastPlayedPitch = newPitch;
}
return FollowMode(FollowHorizontal | FollowVertical);
}
