internal StyleReset Apply(TextWriter output, RichTextBoxThemeStyle style, ref int invisibleCharacterCount)
{
invisibleCharacterCount += Set(output, style);
invisibleCharacterCount += ResetCharCount;
return(new StyleReset(this, output));
}
/// <inheritdoc/>
public override int Set(TextWriter output, RichTextBoxThemeStyle style)
{
if (_styles.TryGetValue(style, out var runStyle))
{
var buffer = new StringBuilder();
buffer.Append("<Run");
var _ = 0;
var backgroundColor = runStyle.Background;
if (!string.IsNullOrWhiteSpace(backgroundColor))
{
buffer.AppendFormat(" Background=\"{0}\"", SpecialCharsEscaping.Apply(backgroundColor, ref _));
}
var foregroundColor = runStyle.Foreground;
if (!string.IsNullOrWhiteSpace(foregroundColor))
{
buffer.AppendFormat(" Foreground=\"{0}\"", SpecialCharsEscaping.Apply(foregroundColor, ref _));
}
var fontWeight = runStyle.FontWeight;
if (!string.IsNullOrWhiteSpace(fontWeight))
{
buffer.AppendFormat(" FontWeight=\"{0}\"", SpecialCharsEscaping.Apply(fontWeight, ref _));
}
buffer.Append('>');
output.Write(buffer);
return(buffer.Length);
}
return(0);
}
public override int Set(TextWriter output, RichTextBoxThemeStyle style)
{
var start = $"<{style.ToString().ToLowerInvariant()}>";
output.Write(start);
return(start.Length);
}
/// <summary> /// Begin a span of text in the specified <paramref name="style"/>. /// </summary> /// <param name="output">Output destination.</param> /// <param name="style">Style to apply.</param> /// <returns> The number of characters written to <paramref name="output"/>. </returns> public abstract int Set(TextWriter output, RichTextBoxThemeStyle style);
public override int Set(TextWriter output, RichTextBoxThemeStyle style) => 0;
protected StyleReset ApplyStyle(TextWriter output, RichTextBoxThemeStyle style, ref int invisibleCharacterCount)
{
return(_theme.Apply(output, style, ref invisibleCharacterCount));
}