/// <summary>
/// Initializes a new instance of the <see cref="TextLayoutToken"/> structure.
/// </summary>
/// <param name="text">The token's text.</param>
/// <param name="bounds">The token's bounds relative to its layout region.</param>
/// <param name="fontFace">The token's font face.</param>
/// <param name="icon">The token's icon.</param>
/// <param name="glyphShader">The token's glyph shader.</param>
/// <param name="color">The token's color.</param>
internal TextLayoutToken(StringSegment text, Rectangle bounds, SpriteFontFace fontFace, TextIconInfo? icon, GlyphShader glyphShader, Color? color)
{
this.text = text;
this.bounds = bounds;
this.fontFace = fontFace;
this.icon = icon;
this.glyphShader = glyphShader;
this.color = color;
}
/// <summary>
/// Registers the specified icon with the command stream and returns its resulting index.
/// </summary>
private Int16 RegisterIconWithCommandStream(TextLayoutCommandStream output, StringSegment name, out TextIconInfo icon)
{
if (!registeredIcons.TryGetValue(name, out icon))
throw new InvalidOperationException(UltravioletStrings.UnrecognizedIcon.Format(name));
return output.RegisterIcon(name, icon);
}
/// <summary>
/// Registers an icon with the command stream.
/// </summary>
/// <param name="name">The name of the icon to register.</param>
/// <param name="icon">The icon to register under the specified name.</param>
/// <returns>The index of the specified icon within the command stream's internal registry.</returns>
public Int16 RegisterIcon(StringSegment name, TextIconInfo icon) =>
(resources = resources ?? new TextLayoutCommandStreamResources()).RegisterIcon(name, icon);