public override TimeTagCaretPosition MoveToLast()
{
var timeTags = Lyrics.SelectMany(x => x.TimeTags ?? new TimeTag[] { }).ToArray();
var lastTag = timeTags.LastOrDefault(timeTagMovable);
return(timeTagToPosition(lastTag));
}
public override TimeTagCaretPosition MoveLeft(TimeTagCaretPosition currentPosition)
{
var timeTags = Lyrics.SelectMany(x => x.TimeTags ?? new TimeTag[] { }).ToArray();
var previousTimeTag = timeTags.GetPreviousMatch(currentPosition.TimeTag, timeTagMovable);
return(timeTagToPosition(previousTimeTag));
}
public override TimeTagCaretPosition MoveRight(TimeTagCaretPosition currentPosition)
{
var timeTags = Lyrics.SelectMany(x => x.TimeTags ?? new TimeTag[] { }).ToArray();
var nextTimeTag = timeTags.GetNextMatch(currentPosition.TimeTag, timeTagMovable);
return(timeTagToPosition(nextTimeTag));
}
public override EditTextTagCaretPosition MoveLeft(EditTextTagCaretPosition currentPosition)
{
base.MoveLeft(currentPosition);
var currentTextTag = currentPosition.TextTag;
var textTags = Lyrics.SelectMany(x => getRelatedTypeTextTag(x, currentPosition) ?? new ITextTag[] { }).ToArray();
var previousTextTag = textTags.GetPrevious(currentTextTag);
var currentLyric = currentPosition.Lyric;
if (getRelatedTypeTextTag(currentLyric, currentPosition).Contains(previousTextTag))
{
return(new EditTextTagCaretPosition(currentLyric, previousTextTag));
}
var previousLyric = getPreviousLyricWithTextTag(currentLyric, currentTextTag);
if (previousLyric == null)
{
return(null);
}
return(new EditTextTagCaretPosition(previousLyric, previousTextTag));
}
