| public GetNewOffset ( int offset, AnchorMovementType movementType = AnchorMovementType.Default ) : int | ||
| offset | int | |
| movementType | AnchorMovementType | |
| return | int | |
public virtual int GetNewOffset(int offset, AnchorMovementType movementType = AnchorMovementType.Default)
{
if (offset >= this.Offset && offset <= this.Offset + this.RemovalLength) {
if (movementType == AnchorMovementType.BeforeInsertion)
return this.Offset;
else
return this.Offset + this.InsertionLength;
} else if (offset > this.Offset) {
return offset + this.InsertionLength - this.RemovalLength;
} else {
return offset;
}
}
public void Update(TextChangeEventArgs change)
{
if (SurviveDeletion || offset <= change.Offset || offset >= change.Offset + change.RemovalLength)
{
offset = change.GetNewOffset(offset, MovementType);
}
else
{
offset = -1;
}
}