/// <summary>
/// Get line background color based on line birth date (index)
/// </summary>
protected Brush GetLineBackgroundBrush(SnapshotVM snapshot, int linenum)
{
var lineSnapshotsNumber = host.Snapshots.Count - host.GetLineBirth(snapshot, linenum);
if (lineSnapshotsNumber < 0)
{
lineSnapshotsNumber = 0; // In case if host.Snapshot not yet updated with new commits.
}
var lineLifeTimePercent = (lineSnapshotsNumber * 100.0 / (host.Snapshots.Count - host.Snapshot.Index)) / 100;
if (lineLifeTimePercent > 1)
{
lineLifeTimePercent = 1;
}
if (host.Snapshots.Count == 1)
{
lineLifeTimePercent = 0;
}
var byteColor = Convert.ToByte(255 - (5 + 249 * lineLifeTimePercent));
return(new SolidColorBrush(Color.FromRgb(byteColor, 0xff, byteColor)));
}