/// <summary>
/// Creates a <see cref="RichTextModel"/> that stores the highlighting of this line.
/// </summary>
public RichTextModel ToRichTextModel()
{
var builder = new RichTextModel();
var startOffset = DocumentLine.Offset;
foreach (var section in Sections)
{
builder.ApplyHighlighting(section.Offset - startOffset, section.Length, section.Color);
}
return(builder);
}
/// <summary>
/// Creates a RichText instance with the given text and RichTextModel.
/// </summary>
/// <param name="text">
/// The text to use in this RichText instance.
/// </param>
/// <param name="model">
/// The model that contains the formatting to use for this RichText instance.
/// <c>model.DocumentLength</c> should correspond to <c>text.Length</c>.
/// This parameter may be null, in which case the RichText instance just holds plain text.
/// </param>
public RichText(string text, RichTextModel model = null)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
if (model != null)
{
var sections = model.GetHighlightedSections(0, text.Length).ToArray();
StateChangeOffsets = new int[sections.Length];
StateChanges = new HighlightingColor[sections.Length];
for (var i = 0; i < sections.Length; i++)
{
StateChangeOffsets[i] = sections[i].Offset;
StateChanges[i] = sections[i].Color;
}
}
else
{
StateChangeOffsets = new[] { 0 };
StateChanges = new[] { HighlightingColor.Empty };
}
}
/// <summary>
/// Creates a new RichTextColorizer instance.
/// </summary>
public RichTextColorizer(RichTextModel richTextModel)
{
_richTextModel = richTextModel ?? throw new ArgumentNullException(nameof(richTextModel));
}