// caution: this is called very frequently i.e. as often as possible
internal bool TimerTick(long msec, int beatsPerMinute, int sliderBarOffset, Action <int> setNewBarIndex)
{
if (sliderBarOffset < 1)
{
throw new Exception();
}
--sliderBarOffset;
Model.Bar firstBar = modelBars[sliderBarOffset];
int firstMsecs = firstBar.getMsec(beatsPerMinute);
if (msec < firstMsecs)
{
int interval = (int)((double)firstBar.state.nIntervalsPerBar * msec / firstMsecs);
bars[sliderBarOffset].CountdownTick(interval);
return(true);
}
msec -= firstMsecs;
Model.When?when = modelBars.getWhen(msec, beatsPerMinute, sliderBarOffset);
if (!when.HasValue)
{
// end of play
StopPlay();
return(false);
}
timerTick(when.Value, setNewBarIndex);
return(true);
}
internal Bar(Model.Bar modelBar, Model.Bar likeOther = null)
{
state = modelBar.state;
Width = 220;
Height = 190;
for (int i = 0; i < 6; ++i)
{
newHorizontal(20, 200, lineY(i));
}
newLabel(
lineY(5),
timeX(0, LabelType.BarNumber),
modelBar.barNumber.number.ToString(),
LabelType.BarNumber
);
string comment = modelBar.barNumber.comment;
if (string.IsNullOrEmpty(comment) && (likeOther != null))
{
comment = string.Format("(like {0})", likeOther.barNumber.number);
}
if (!string.IsNullOrEmpty(comment))
{
newLabel(
lineY(-1),
timeX(0, LabelType.Comment),
comment,
LabelType.Comment
);
}
if (likeOther != null)
{
showContents(likeOther);
}
else
{
showContents(modelBar);
}
this.Background = backgroundBrush;
}
void showContents(Model.Bar modelBar)
{
foreach (Chord chord in modelBar.chords)
{
newLabel(
lineY(6),
timeX(chord.time, LabelType.Chord),
chord.name,
LabelType.Chord
);
}
foreach (Note note in modelBar.notes)
{
newLabel(
lineY(note.line),
timeX(note.time, LabelType.Note),
note.fret.ToString(),
LabelType.Note
);
}
}