private void GetCaptions(CaptionFormats captionFormat, TimeSpan timeSpan)
{
var itemIndex = 0;
string
startString,
endString = "00:00:00,000",
text,
previousText = string.Empty;
string[] CreateNewItem()
{
switch (captionFormat)
{
case CaptionFormats.SubRip:
return(new[]
{
$"{++itemIndex}",
$"{startString} --> {endString}",
string.IsNullOrWhiteSpace(text) ? string.Empty : $" {text.Trim()} ",
string.Empty
});
case CaptionFormats.SubViewer:
return(new[]
{
$"{startString},{endString}",
string.IsNullOrWhiteSpace(text) ? string.Empty : $" {text.Trim()} ",
string.Empty
});
}
return(new string[0]);
}
(int, int) GetEndPosition()
{
switch (captionFormat)
{
case CaptionFormats.SubRip:
return(4 * itemIndex - 3, 17);
case CaptionFormats.SubViewer:
return(3 * itemIndex - 2, 12);
}
return(0, 0);
}
string GetTimeFormat()
{
switch (captionFormat)
{
case CaptionFormats.SubRip:
return(@"hh\:mm\:ss\,fff"); // ms separator is comma
case CaptionFormats.SubViewer:
return(@"hh\:mm\:ss\.fff"); // ms separator is period
}
return(string.Empty);
}
Lines.Clear();
Lines.AddRange(((FileController)Parent).LyricsTextBox.Lines);
Captions.Clear();
var lineEnd = 0.0;
TimeSpan
startTime,
endTime = TimeSpan.Zero;
var totalTime = timeSpan.TotalMilliseconds;
var linesEnd = Lines.Sum(line => ParseLine(line).Item2);
var timeFormat = GetTimeFormat();
foreach (var line in Lines)
{
text = line;
var lineDelta = ParseLine(ref text);
if (lineDelta == 0) // Ignore lines starting with a hyphen.
{
continue;
}
lineEnd += lineDelta;
startTime = endTime;
endTime = TimeSpan.FromMilliseconds(totalTime * lineEnd / linesEnd);
startString = endString;
endString = endTime.ToString(timeFormat);
if (text != "\"" && text != previousText || itemIndex == 0) // Add the new text.
{
Captions.AddRange(CreateNewItem());
previousText = text;
}
else // The previous lyric is repeated, so just extend its display time.
{
var p = GetEndPosition();
Captions[p.Item1] = $"{Captions[p.Item1].Substring(0, p.Item2)}{endString}";
}
}
}
internal void GetCaptions(CaptionFormats captionFormat, int min, int sec, int ms) => GetCaptions(captionFormat, new TimeSpan(0, 0, min, sec, ms));
