internal void AddMatch(string s, Location ml, bool offsetPos, Predicate<ChangeType> changeTypeSelector)
{
Location mlDup = ml.Clone() as Location;
int charsToGoBack = s.Length - 1 ;
if (offsetPos)
{
mlDup.CharOffset--;
mlDup.RedlineCharPos--;
}
if (mlDup.CharOffset == -1)
{
mlDup.CharOffset = 0;
charsToGoBack++;
}
// we are looking at the last char in the string when we get called, so offset back to the first
WorkBackwards(mlDup, charsToGoBack, changeTypeSelector);
#if DEBUG
TextRun tr = mlDup.TargetObject as TextRun;
Debug.Assert(tr != null);
if (mlDup.CharOffset + mlDup.Length <= tr.Content.Length)
{
string sCheck = tr.Content.Substring(mlDup.CharOffset, mlDup.Length);
Debug.Assert(sCheck.ToUpper() == s.ToUpper());
}
else
{
Debug.Assert(s.ToUpper().StartsWith(tr.Content.ToUpper().Substring(mlDup.CharOffset)));
}
#endif
MatchLocations.Add(mlDup);
}
private void WorkBackwards(Location l, int charCount, Predicate<ChangeType> changeTypeSelector)
{
while (charCount > 0)
{
int stepBackNow = Math.Max(0, Math.Min(charCount, l.CharOffset));
l.CharOffset -= stepBackNow;
l.RedlineCharPos -= stepBackNow;
charCount -= stepBackNow;
if (charCount > 0)
l.GoBackToPreviousRun(changeTypeSelector);
}
}
private ISummaryItem BuildItem(Location ml)
{
_si = new SummaryItem();
DocObjectWithContent dowc = null;
int index = -1;
foreach (LocationElement le in ml.LocationStack)
{
if (le.Container.Content.Count > 1 || SummaryItemBuilder.StartsNewContext(le.Container))
{
dowc = le.Container;
index = le.ChildIndex;
}
}
if (dowc == null)
throw new InvalidCastException();
while (index > 0)
{
index--;
if (dowc.Content[index] is ParaMarker)
{
break;
}
if (SummaryItemBuilder.StartsNewContext(dowc.Content[index]))
{
index++;
break;
}
}
_charsToGrab = 0;
_seenTarget = false;
_location = ml;
AddContentToSummaryItem(dowc, index);
return _si;
}
private Change FindChangeInLocationStack(Location l)
{
foreach (LocationElement le in l.LocationStack)
{
if (le.Container is Change)
return le.Container as Change;
}
return null;
}
private DocObject FindObject(RedlineDocument rd, Location l)
{
DocObject result = null;
DocObjectWithContent container = rd;
foreach (LocationElement le in l.LocationStack)
{
Assert.AreSame(container, le.Container);
result = container.Content[le.ChildIndex];
container = result as DocObjectWithContent;
}
return result;
}
