private void AddElement(TrackDisplayElement element, bool isFirstTrack, int startIndex)
{
if (isFirstTrack)
{
m_displayElementList.Add(element);
}
else
{
for (int i = startIndex; i < m_displayElementList.Count; ++i)
{
TrackDisplayElement iter = (TrackDisplayElement)m_displayElementList[i];
if (iter.m_colorList.Count == 1 && iter.m_colorList[0] == element.m_colorList[0])
{
// The two elements are of the same color, they cannot overlap
continue;
}
if (element.m_y == iter.m_y &&
iter.m_time2 > element.m_time1 &&
iter.m_time1 < element.m_time2)
{
// These elements overlap
int overlapTime1 = iter.m_time1;
int overlapTime2 = iter.m_time2;
if (iter.m_time1 < element.m_time1)
{
// This is the piece of the already existing element
// that does not overlap to the left
m_displayElementList.Add(new TrackDisplayElement(iter.m_time1, element.m_time1, iter.m_y, new ArrayList(iter.m_colorList), new ArrayList(iter.m_widthList)));
overlapTime1 = element.m_time1;
}
else if (iter.m_time1 > element.m_time1)
{
// call this method recursively for the nonoverlapping part
// start at index i, since we already checked all the elements before that
AddElement(new TrackDisplayElement(element.m_time1, iter.m_time1, element.m_y, (Color)element.m_colorList[0], (float)element.m_widthList[0]), false, i + 1);
}
if (iter.m_time2 > element.m_time2)
{
// This is the piece of the already existing element
// that does not overlap to right
m_displayElementList.Add(new TrackDisplayElement(element.m_time2, iter.m_time2, iter.m_y, new ArrayList(iter.m_colorList), new ArrayList(iter.m_widthList)));
overlapTime2 = element.m_time2;
}
else if (iter.m_time2 < element.m_time2)
{
// call this method recursively for the nonoverlapping part
// start at index i, since we already checked all the elements before that
AddElement(new TrackDisplayElement(iter.m_time2, element.m_time2, element.m_y, (Color)element.m_colorList[0], (float)element.m_widthList[0]), false, i + 1);
}
// update iter for the overlapping data
iter.m_time1 = overlapTime1;
iter.m_time2 = overlapTime2;
iter.AddOverlappingData((Color)element.m_colorList[0], (float)element.m_widthList[0]);
// All the elements have been added, return
return;
}
}
// Can only get here if there was no overlap
// Add the element as is
m_displayElementList.Add(element);
}
}
public TrackDisplay(MidiTrack[] tracks, Color[] trackColors)
{
m_displayElementList = new ArrayList();
// store notes-
ArrayList evts = new ArrayList();
for (int n = 0; n < tracks.Length; n++) //MidiTrack t in f.tracks)
{
MidiTrack t = tracks[n];
if (!t.enabled)
{
continue;
}
evts.Clear();
float width = 1;
for (int i = 0; i < t.events.Count; i++)
{
if (t.get_e(i).IsMidi)
{
TimedMidiMsg m = (TimedMidiMsg)t.get_e(i);
if (m.m.IsNoteOn)
{
evts.Add(m);
}
else if (m.m.IsNoteOff)
{
TimedMidiMsg e1 = null;
TimedMidiMsg e2 = m;
foreach (TimedMidiMsg mm in evts)
{
if (mm.m.Byte2 == e2.m.Byte2)
{
e1 = mm;
evts.Remove(mm);
break;
}
}
if (e1 != null)
{
TrackDisplayElement element =
new TrackDisplayElement(e1.Time, e2.Time, e2.m.Byte2,
trackColors[Array.IndexOf(tracks, t)], width);
AddElement(element, n == 0, 0);
}
}
}
else if (t.get_e(i).IsMeta)
{
MetaMsg m = (MetaMsg)t.get_e(i);
if (m.Type == 6) // "Marker"
{
if (m.Txt.ToLower() == "bold")
{
width = 2;
}
else if (m.Txt.ToLower() == "stop")
{
width = 1;
}
}
}
}
}
}