public void AddTextSpan(Run textRun)
{
if (CurrentLine.IsBlankLine)
{
CurrentLine.AddLast(textRun);
SetCurrentTextRun(textRun);
CurrentLine.TextLineReCalculateActualLineSize();
CurrentLine.RefreshInlineArrange();
SetCurrentCharIndex(CharIndex + textRun.CharacterCount);
}
else
{
if (CurrentTextRun != null)
{
VisualPointInfo newPointInfo = CurrentLine.Split(GetCurrentPointInfo());
if (newPointInfo.IsOnTheBeginOfLine)
{
if (newPointInfo.Run == null)
{
CurrentLine.AddFirst(textRun);
}
else
{
CurrentLine.AddBefore(newPointInfo.Run, textRun);
}
}
else
{
if (newPointInfo.Run == null)
{
CurrentLine.AddFirst(textRun);
}
else
{
CurrentLine.AddAfter(newPointInfo.Run, textRun);
}
}
CurrentLine.TextLineReCalculateActualLineSize();
CurrentLine.RefreshInlineArrange();
EnsureCurrentTextRun(CharIndex + textRun.CharacterCount);
}
else
{
throw new NotSupportedException();
}
}
}
public void SplitToNewLine()
{
EditableRun lineBreakRun = new EditableTextRun(this.Root, '\n', this.CurrentSpanStyle);
EditableRun currentRun = CurrentTextRun;
if (CurrentLine.IsBlankLine)
{
CurrentLine.AddLast(lineBreakRun);
}
else
{
if (CharIndex == -1)
{
CurrentLine.AddFirst(lineBreakRun);
SetCurrentTextRun(null);
}
else
{
EditableRun rightSplitedPart = EditableRun.InnerRemove(currentRun,
CurrentTextRunCharIndex + 1, true);
if (rightSplitedPart != null)
{
CurrentLine.AddAfter(currentRun, rightSplitedPart);
}
CurrentLine.AddAfter(currentRun, lineBreakRun);
if (currentRun.CharacterCount == 0)
{
CurrentLine.Remove(currentRun);
}
}
}
this.TextLayer.TopDownReCalculateContentSize();
EnsureCurrentTextRun();
}