/// <summary>
/// Determines whether a fixup segment should start based on the provided source and destination text-formatting.
/// </summary>
/// <param name="sourceStyle">The current text-formatting at the source.</param>
/// <param name="destinationStyle">The current text-formatting at the destination.</param>
/// <param name="fixupSegment">The fixup segment that is currently open for this TextStyle.</param>
/// <returns>true if the provided fixup segment should be ended and a new fixup segment started, and false
/// otherwise.</returns>
private bool ShouldStartFixupSegment(TextStyle sourceStyle, TextStyle destinationStyle, FixupSegment fixupSegment)
{
// If we've moved into a range where the source and copy styles don't match (and there's not already an
// open fixup segment that will make them match) then we should start a fixup segment.
if (sourceStyle != destinationStyle && (fixupSegment == null || fixupSegment.SourceTextStyle != sourceStyle))
{
return true;
}
return false;
}
/// <summary>
/// Determines whether a fixup segment should end based on the provided source and destination text-formatting.
/// </summary>
/// <param name="sourceStyle">The current text-formatting at the source.</param>
/// <param name="destinationStyle">The current text-formatting at the destination.</param>
/// <param name="fixupSegment">The fixup segment that is currently open for this TextStyle.</param>
/// <returns>true if the provided fixup segment should be ended and false otherwise.</returns>
private bool ShouldEndFixupSegment(TextStyle sourceStyle, TextStyle destinationStyle, FixupSegment fixupSegment)
{
// Can't end a non-existent fixup segment.
if (fixupSegment == null)
{
return false;
}
// If we've moved into a range where the source and copy styles match then we should end the fixup segment.
if (destinationStyle == sourceStyle)
{
return true;
}
// If we've moved into a range where the open fixup segment doesn't apply anymore then we should end the
// fixup segment.
if (fixupSegment.SourceTextStyle != sourceStyle)
{
return true;
}
return false;
}