private void AppendLineTags(AssLine line, AssStyle style, AssLineContentBuilder lineContent)
{
if (line.AnchorPoint != style.AnchorPoint)
{
lineContent.AppendTag("an", GetAlignment(line.AnchorPoint));
}
if (line.Position != null)
{
lineContent.AppendTag("pos", line.Position.Value.X, line.Position.Value.Y);
}
if (line.VerticalTextType != VerticalTextType.None)
{
lineContent.AppendTag("ytvert", AssVerticalTypeTagHandler.GetVerticalTextTypeId(line.VerticalTextType));
}
}
private void AppendLineTags(AssLine line, AssStyle style, AssLineContentBuilder lineContent)
{
if (line.AnchorPoint != style.AnchorPoint)
{
lineContent.AppendTag("an", GetAlignment(line.AnchorPoint));
}
if (line.Position != null)
{
lineContent.AppendTag("pos", line.Position.Value.X, line.Position.Value.Y);
}
if (line.VerticalTextType != VerticalTextType.None)
{
lineContent.AppendTag("ytvert", AssVerticalTypeTagHandler.GetVerticalTextTypeId(line.HorizontalTextDirection, line.VerticalTextType));
}
else if (line.HorizontalTextDirection != HorizontalTextDirection.LeftToRight)
{
lineContent.AppendTag("ytdir", AssHorizontalTextDirectionTag.GetHorizontalTextDirectionId(line.HorizontalTextDirection));
}
}
private void AppendSectionTags(AssSection section, AssSection prevSection, AssLineContentBuilder lineContent)
{
if (section.Font != prevSection.Font)
{
lineContent.AppendTag("fn", section.Font);
}
float prevLineHeight = ScaleToLineHeight(prevSection.Font, prevSection.Scale);
float lineHeight = ScaleToLineHeight(section.Font, section.Scale);
if (lineHeight != prevLineHeight)
{
lineContent.AppendTag("fs", lineHeight);
}
if (section.Bold != prevSection.Bold)
{
lineContent.AppendTag("b", section.Bold);
}
if (section.Italic != prevSection.Italic)
{
lineContent.AppendTag("i", section.Italic);
}
if (section.Underline != prevSection.Underline)
{
lineContent.AppendTag("u", section.Underline);
}
AppendColorTags("c", "1a", prevSection.ForeColor, section.ForeColor, lineContent);
AppendColorTags("2c", "2a", prevSection.SecondaryColor, section.SecondaryColor, lineContent);
if (section.BackColor.A > 0)
{
AppendColorTags("3c", "3a", prevSection.BackColor, section.BackColor, lineContent);
if (prevSection.ShadowColors.Count == 1 && section.ShadowColors.Count == 1)
{
AppendColorTags("4c", "4a", prevSection.ShadowColors.Values.First(), section.ShadowColors.Values.First(), lineContent);
}
}
else if (prevSection.ShadowColors.Count == 1 && section.ShadowColors.Count == 1)
{
if (section.ShadowColors.Keys.First() == ShadowType.Glow)
{
AppendColorTags("3c", "3a", prevSection.ShadowColors.Values.First(), section.ShadowColors.Values.First(), lineContent);
}
else
{
AppendColorTags("4c", "4a", prevSection.ShadowColors.Values.First(), section.ShadowColors.Values.First(), lineContent);
}
}
if (section.Offset != prevSection.Offset)
{
lineContent.AppendTag(
section.Offset switch
{
OffsetType.Subscript => "ytsub",
OffsetType.Superscript => "ytsup",
OffsetType.Regular => "ytsur",
}
protected virtual void WriteLine(AssLine line, StreamWriter writer)
{
if (line.Sections.Count == 0)
{
return;
}
AssStyle style = GetStyleMatchingStructure((AssSection)line.Sections[0]);
WriteLineMetadata(line, style, writer);
AssSection prevSection = new AssSection();
AssStyle prevStyle = style;
ApplyStyle(prevSection, prevStyle);
AssLineContentBuilder lineContent = new AssLineContentBuilder();
AppendLineTags(line, style, lineContent);
RubyPart currentRubyPosition = RubyPart.None;
for (int i = 0; i < line.Sections.Count; i++)
{
AssSection section = (AssSection)line.Sections[i];
style = GetStyleMatchingStructure(section);
if (style != prevStyle || (currentRubyPosition != RubyPart.None && section.RubyPart == RubyPart.None))
{
lineContent.AppendTag("r", style);
currentRubyPosition = RubyPart.None;
prevSection = (AssSection)prevSection.Clone();
ApplyStyle(prevSection, style);
}
AppendSectionTags(section, prevSection, lineContent);
if (section.RubyPart == RubyPart.Text)
{
RubyPart rubyPart;
if (i + 4 > line.Sections.Count || ((rubyPart = line.Sections[i + 2].RubyPart) != RubyPart.RubyAbove && rubyPart != RubyPart.RubyBelow))
{
throw new InvalidDataException("Invalid ruby sequence");
}
if (rubyPart != currentRubyPosition)
{
lineContent.AppendTag("ytruby", rubyPart == RubyPart.RubyAbove ? 8 : 2);
currentRubyPosition = rubyPart;
}
lineContent.AppendText($"[{section.Text}/{line.Sections[i + 2].Text}]");
i += 3;
}
else
{
lineContent.AppendText(section.Text);
}
prevSection = section;
prevStyle = style;
}
writer.WriteLine(lineContent);
}
