private bool actionTimeHasPassed(TestAction action, TestReplay TR)
 {
     TimeSpan span = action.getStartTime().Subtract(TR.getStartTime());
     double seconds = span.TotalSeconds;
     bool b = seconds < stopwatch.Elapsed.TotalSeconds;
     return b;
 }
 private bool lineDataTimeHasPassed(LineData lineData, TestReplay TR)
 {
     TimeSpan span = lineData.getDateTime().Subtract(TR.getStartTime());
     double seconds = span.TotalSeconds;
     bool b = seconds < stopwatch.Elapsed.TotalSeconds;
     return b;
 }
 private int getColorTimeInterval(TestReplay TR)
 {
     double testDuration = (TR.getEndTime() - TR.getStartTime()).TotalSeconds;
     if (testDuration <= 8) { return 1; }
     else if (testDuration <= 40) { return 5; }
     else if (testDuration <= 120) { return 15; }
     else { return 30; }
 }