private void buttonRemoveAll_Click(object sender, EventArgs e)
 {
     listViewStyles.Items.Clear();
     var sub = new Subtitle();
     if (_isSubStationAlpha)
     {
         var ssa = new SubStationAlpha();
         string text = ssa.ToText(sub, string.Empty);
         string[] lineArray = text.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);
         var lines = new List<string>();
         foreach (string line in lineArray)
             lines.Add(line);
         ssa.LoadSubtitle(sub, lines, string.Empty);
         _header = _header.Remove(_header.IndexOf("[V4 Styles]", StringComparison.Ordinal)) + sub.Header.Substring(sub.Header.IndexOf("[V4 Styles]", StringComparison.Ordinal));
     }
     else
     {
         var ass = new AdvancedSubStationAlpha();
         string text = ass.ToText(sub, string.Empty);
         string[] lineArray = text.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);
         var lines = new List<string>();
         foreach (string line in lineArray)
             lines.Add(line);
         ass.LoadSubtitle(sub, lines, string.Empty);
         _header = _header.Remove(_header.IndexOf("[V4+ Styles]", StringComparison.Ordinal)) + sub.Header.Substring(sub.Header.IndexOf("[V4+ Styles]", StringComparison.Ordinal));
     }
     InitializeListView();
 }
 public void AssSimpleFontSizeMultipleToText()
 {
     var target = new AdvancedSubStationAlpha();
     var subtitle = new Subtitle();
     subtitle.Paragraphs.Add(new Paragraph("<font size=\"1\">T</font><font size=\"2\">E</font><font size=\"3\">S</font><font size=\"4\">T</font>", 0, 2000));
     var result = target.ToText(subtitle, "");
     Assert.IsTrue(result.Contains(@"{\fs1}T{\fs2}E{\fs3}S{\fs4}T"));
 }