/// <summary>
/// Return a StyledParagraph reflecting the insertion of a single character
/// into the text. This method will attempt to reuse the given paragraph,
/// but may create a new paragraph. </summary>
/// <param name="aci"> an iterator over the text. The text should be the same as the
/// text used to create (or most recently update) oldParagraph, with
/// the exception of inserting a single character at insertPos. </param>
/// <param name="chars"> the characters in aci </param>
/// <param name="insertPos"> the index of the new character in aci </param>
/// <param name="oldParagraph"> a StyledParagraph for the text in aci before the
/// insertion </param>
public static StyledParagraph InsertChar(AttributedCharacterIterator aci, char[] chars, int insertPos, StyledParagraph oldParagraph)
{
// If the styles at insertPos match those at insertPos-1,
// oldParagraph will be reused. Otherwise we create a new
// paragraph.
char ch = aci.setIndex(insertPos);
int relativePos = System.Math.Max(insertPos - aci.BeginIndex - 1, 0);
//JAVA TO C# CONVERTER TODO TASK: Java wildcard generics are not converted to .NET:
//ORIGINAL LINE: java.util.Map<? extends java.text.AttributedCharacterIterator_Attribute, ?> attributes = addInputMethodAttrs(aci.getAttributes());
IDictionary <?, ?> attributes = AddInputMethodAttrs(aci.Attributes);
Decoration d = Decoration.getDecoration(attributes);
if (!oldParagraph.GetDecorationAt(relativePos).Equals(d))
{
return(new StyledParagraph(aci, chars));
}
Object f = GetGraphicOrFont(attributes);
if (f == null)
{
FontResolver resolver = FontResolver.Instance;
int fontIndex = resolver.getFontIndex(ch);
f = resolver.getFont(fontIndex, attributes);
}
if (!oldParagraph.GetFontOrGraphicAt(relativePos).Equals(f))
{
return(new StyledParagraph(aci, chars));
}
// insert into existing paragraph
oldParagraph.Length += 1;
if (oldParagraph.Decorations != null)
{
InsertInto(relativePos, oldParagraph.DecorationStarts, oldParagraph.Decorations.Count);
}
if (oldParagraph.Fonts != null)
{
InsertInto(relativePos, oldParagraph.FontStarts, oldParagraph.Fonts.Count);
}
return(oldParagraph);
}
