void
CPitchBendEventRenderer::Draw(
const CEvent &ev,
bool shadowed) const
{
CDestination *dest = Editor()->TrackWindow()->Document()->FindDestination(ev.GetVChannel());
BRect r;
if (shadowed)
Editor()->SetDrawingMode( B_OP_BLEND );
Editor()->SetHighColor(dest->Color());
if ((ev.Duration() > 0) && (ev.pitchBend.updatePeriod > 0))
{
Editor()->BeginLineArray(ev.Duration() / ev.pitchBend.updatePeriod);
for (int i = ev.pitchBend.updatePeriod; i < ev.Duration(); i += ev.pitchBend.updatePeriod)
{
long v = ev.pitchBend.startBend - 0x2000
+ ((ev.pitchBend.targetBend - ev.pitchBend.startBend)
* i / ev.Duration());
BPoint point(Editor()->TimeToViewCoords(ev.Start() + i),
Editor()->ValueToViewCoords(v));
Editor()->AddLine(point, point, Editor()->HighColor());
}
Editor()->EndLineArray();
r.left = Editor()->TimeToViewCoords(ev.Stop() ) - 2.0;
r.top = Editor()->ValueToViewCoords(ev.pitchBend.targetBend - 0x2000) - 2.0;
r.right = r.left + 4.0;
r.bottom = r.top + 4.0;
Editor()->FillEllipse(r);
r.InsetBy(-1.0, -1.0);
if (ev.IsSelected() && !shadowed && Editor()->IsSelectionVisible())
Editor()->SetHighColor(0, 0, 255);
else
Editor()->SetHighColor(0, 0, 0);
Editor()->StrokeEllipse(r);
}
r.left = Editor()->TimeToViewCoords(ev.Start()) - 2.0;
r.top = Editor()->ValueToViewCoords(ev.pitchBend.startBend - 0x2000) - 2.0;
r.right = r.left + 4.0;
r.bottom = r.top + 4.0;
Editor()->SetHighColor(dest->Color());
Editor()->FillEllipse(r);
if (ev.IsSelected() && !shadowed && Editor()->IsSelectionVisible())
Editor()->SetHighColor(0, 0, 255);
else
Editor()->SetHighColor(0, 0, 0);
r.InsetBy(-1.0, -1.0);
Editor()->StrokeEllipse(r);
}
long
CPitchBendEventRenderer::Pick(
const CEvent &ev,
BPoint pickPt,
short &partCode) const
{
if (ev.Duration() > 0)
{
BPoint start(Editor()->TimeToViewCoords(ev.Start()),
Editor()->ValueToViewCoords(ev.pitchBend.startBend - 0x2000));
BPoint stop(Editor()->TimeToViewCoords(ev.Stop()),
Editor()->ValueToViewCoords(ev.pitchBend.targetBend - 0x2000));
float best = MAX(fabs(pickPt.x - stop.x), fabs(pickPt.y - stop.y));
float dist = MAX(fabs(pickPt.x - start.x), fabs(pickPt.y - start.y));
partCode = Part_End;
if (dist < best)
{
best = dist;
partCode = Part_Start;
}
if (best > 3.0)
{
dist = MathUtils::DistanceFromPointToLine(pickPt, start, stop);
if (dist < best)
{
best = dist + 2.0;
partCode = Part_Whole;
}
}
if (best > 8.0)
return LONG_MAX;
return static_cast<long>(best);
}
else
{
BPoint diff(pickPt.x - Editor()->TimeToViewCoords(ev.Start()),
pickPt.y - Editor()->ValueToViewCoords(ev.pitchBend.startBend - 0x2000));
if ((diff.y > 8) || (diff.y < -8) || (diff.x > 10) || (diff.x < -8))
return LONG_MAX;
if (diff.x >= 3.0)
partCode = Part_End;
else
partCode = Part_Whole;
return static_cast<long>(MAX(fabs(diff.x), fabs(diff.y)));
}
}
BRect
CPitchBendEventRenderer::Extent(
const CEvent &ev) const
{
float yStart = Editor()->ValueToViewCoords(ev.pitchBend.startBend - 0x2000);
float yStop = Editor()->ValueToViewCoords(ev.pitchBend.targetBend - 0x2000);
BRect r;
r.left = Editor()->TimeToViewCoords(ev.Start()) - 5.0;
r.right = Editor()->TimeToViewCoords(ev.Stop()) + 5.0;
r.bottom = MAX(yStart, yStop) + 5.0;
r.top = MIN(yStart, yStop) - 5.0;
return r;
}