/// <summary>
/// Add the specified layer fragment to this part. Any other existing
/// fragment eventually overlapping the new one will be removed.
/// </summary>
/// <param name="fragment">The new fragment.</param>
/// <exception cref="ArgumentNullException">null item</exception>
public void AddFragment(TFragment fragment)
{
if (fragment == null)
{
throw new ArgumentNullException(nameof(fragment));
}
if (Fragments == null)
{
Fragments = new List <TFragment>();
}
// remove all the existing overlapping fragments
TokenTextLocation newLoc = TokenTextLocation.Parse(fragment.Location);
for (int i = Fragments.Count - 1; i > -1; i--)
{
TokenTextLocation loc =
TokenTextLocation.Parse(Fragments[i].Location);
if (newLoc.Overlaps(loc))
{
Fragments.RemoveAt(i);
}
}
Fragments.Add(fragment);
}
/// <summary>
/// Gets the fragments hints for the specified list of editing
/// operations on the base text.
/// </summary>
/// <param name="operations">The operations.</param>
/// <returns>The hints list, one hint per fragment.</returns>
/// <exception cref="ArgumentNullException">operations</exception>
public IList <LayerHint> GetFragmentHints(
IList <YXEditOperation> operations)
{
if (operations == null)
{
throw new ArgumentNullException(nameof(operations));
}
List <LayerHint> hints = new List <LayerHint>();
foreach (AnonFragment fr in Fragments)
{
TokenTextLocation frLoc = TokenTextLocation.Parse(fr.Location);
LayerHint hint = new LayerHint
{
Location = fr.Location
};
hints.Add(hint);
foreach (YXEditOperation operation in operations)
{
TokenTextLocation opLoc = TokenTextLocation.Parse(
operation.OldLocation);
bool isOverlap = frLoc.Overlaps(opLoc);
bool isCoincident = !frLoc.IsRange &&
frLoc.A.Y == opLoc.A.Y &&
frLoc.A.X == opLoc.A.X;
switch (operation.Operator)
{
case YXEditOperation.EQU:
if (isOverlap &&
operation.OldLocation != operation.Location)
{
hint.EditOperation = operation.ToString();
hint.Description = $"text \"{operation.Value}\" moved";
if (isCoincident)
{
hint.ImpactLevel = 2;
hint.PatchOperation =
$"mov {operation.OldLocation} {operation.Location}";
}
else
{
hint.ImpactLevel = 1;
}
}
break;
case YXEditOperation.DEL:
if (isOverlap)
{
hint.EditOperation = operation.ToString();
hint.Description =
$"text \"{operation.Value}\" deleted";
if (isCoincident)
{
hint.ImpactLevel = 2;
hint.PatchOperation =
$"del {operation.OldLocation}";
}
else
{
hint.ImpactLevel = 1;
}
}
break;
case YXEditOperation.MVD:
if (isCoincident)
{
hint.EditOperation = operation.ToString();
hint.Description =
$"text \"{operation.Value}\" moved";
hint.ImpactLevel = 2;
string newLoc = operations.First(o =>
o.GroupId == operation.GroupId &&
o != operation).OldLocation;
hint.PatchOperation =
$"mov {operation.Location} {newLoc}";
break;
}
if (isOverlap)
{
hint.EditOperation = operation.ToString();
hint.Description =
$"text \"{operation.Value}\" moved";
hint.ImpactLevel = 1;
}
break;
case YXEditOperation.REP:
if (isOverlap)
{
hint.EditOperation = operation.ToString();
hint.Description =
$"text \"{operation.OldValue}\" " +
$"replaced with \"{operation.Value}\"";
hint.ImpactLevel = 1;
}
break;
// no hint for ins/mvi as relocations are already
// processed for equ
}
}
}
return(hints);
}
