/// <summary> Gets the advance width of this character in device-independent units. </summary>
private double GetAdvanceWidth(Glyph glyph)
{
return GlyphRunViewModel.glyphFace.AdvanceWidths[glyph.Index] * glyph.Size;
}
/// <summary> Handles adding a new glyph. </summary>
private void AddNewGlyphsMutation(Glyph newGlyph, int palpableIndex, BoxViewModel glyphReceiver)
{
Func<IEnumerable<NameInstance>> mutation = () => GetMutation(newGlyph, palpableIndex).ToSingleton();
GetCollectionToAddTo(GetRoute(glyphReceiver)).Add(palpableIndex, mutation, true);
//() => EnumerableExtensions.Zip(newGlyphs.Select(glyph => glyph.Character),newGlyphs.Select(glyph => glyph.Markup),Enumerable.Range(0, int.MaxValue).Select(i => new LinearPosition(palpableIndex + i)),ToNameInstance),true);
}
private NameInstance GetMutation(Glyph newGlyph, int palpableIndex)
{
//no registering of an event handler necessary
return ToNameInstance(newGlyph.Character, newGlyph.Markup, new LinearPosition(palpableIndex));
}
/// <summary> Returns whether the specified glyph represents the placeholder glyph. </summary>
public static bool IsPlaceholder(Glyph glyph)
{
return glyph.Character == placeholderGlyphCharacter;
}