enum ItemType {
RegionItem,
StreamItem,
+ WaveItem,
PlayheadCursorItem,
MarkerItem,
MarkerBarItem,
GainLineItem,
AutomationLineItem,
MeterMarkerItem,
+ TempoCurveItem,
TempoMarkerItem,
MeterBarItem,
TempoBarItem,
MinsecRulerItem,
BBTRulerItem,
SamplesRulerItem,
-
+ DropZoneItem,
+
/* don't remove this */
NoItem