private void UpdateCenter()
{
double num = TimelineView.PositionFromSeconds(this.timelineView.CurrentTime);
this.wasCurrentTimeVisible = num >= this.ScrollBar.Value && num <= this.ScrollBar.Value + this.visibleWidth;
this.centerTime = TimelineView.SecondsFromPosition(this.ScrollBar.Value + this.visibleWidth / 2.0);
}
private void UpdateScrollExtents(bool isZooming)
{
ScrollViewer scrollViewer = (ScrollViewer)this.Viewers[0];
ExtendedScrollBar extendedScrollBar = (ExtendedScrollBar)this.ScrollBar;
double num1 = TimelineView.PositionFromSeconds(Math.Max(this.timelineView.LastSignificantTime, TimelineView.SecondsFromPosition(scrollViewer.RenderSize.Width)) + 1.0) - scrollViewer.RenderSize.Width;
if (isZooming)
{
if (this.wasCurrentTimeVisible)
{
this.centerTime = this.timelineView.CurrentTime;
}
double num2 = Math.Max(0.0, TimelineView.PositionFromSeconds(this.centerTime) - this.visibleWidth / 2.0);
extendedScrollBar.ContentMaximum = num1;
extendedScrollBar.Value = num2;
}
else
{
extendedScrollBar.ContentMaximum = num1;
}
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
return((object)TimelineView.PositionFromSeconds((double)value));
}
