public IEnumerable<TextChangeEventArgs> GetChangesTo(ITextBufferVersion other)
{
SnapshotVersion otherVersion = other as SnapshotVersion;
if (otherVersion == null)
throw new ArgumentException("Does not belong to same document");
return checkpoint.GetChangesTo(otherVersion.checkpoint).Select(c => new TextChangeEventArgs(c.Offset, c.RemovedText, c.InsertedText));
}
public int CompareAge(ITextBufferVersion other)
{
SnapshotVersion otherVersion = other as SnapshotVersion;
if (otherVersion == null)
throw new ArgumentException("Does not belong to same document");
return checkpoint.CompareAge(otherVersion.checkpoint);
}
public int MoveOffsetTo(ITextBufferVersion other, int oldOffset, AnchorMovementType movement)
{
SnapshotVersion otherVersion = other as SnapshotVersion;
if (otherVersion == null)
throw new ArgumentException("Does not belong to same document");
switch (movement) {
case AnchorMovementType.AfterInsertion:
return checkpoint.MoveOffsetTo(otherVersion.checkpoint, oldOffset, ICSharpCode.AvalonEdit.Document.AnchorMovementType.AfterInsertion);
case AnchorMovementType.BeforeInsertion:
return checkpoint.MoveOffsetTo(otherVersion.checkpoint, oldOffset, ICSharpCode.AvalonEdit.Document.AnchorMovementType.BeforeInsertion);
default:
throw new NotSupportedException();
}
}
public bool BelongsToSameDocumentAs(ITextBufferVersion other)
{
SnapshotVersion otherVersion = other as SnapshotVersion;
return(otherVersion != null && checkpoint.BelongsToSameDocumentAs(otherVersion.checkpoint));
}