public HistoryViewer(Rect Bounds, ScrollBar AHScrollBar, ScrollBar AVScrollBar, int AHistoryId) : base(Bounds, 1, AHScrollBar, AVScrollBar)
{
HistoryId = AHistoryId;
SetRange(History.HistoryCount(AHistoryId));
if (Range > 1)
{
FocusItem(1);
}
HScrollBar.SetRange(1, HistoryWidth() - Size.X + 3);
}