private static void MoveUnitBounded(MarkupPointer p, MoveDirection direction, MoveContextFilter continueFilter, MarkupPointer boundary)
{
MarkupPointer p1 = p.Clone();
MarkupPointer lastGoodPosition = p.Clone();
MarkupContext context = new MarkupContext();
MoveFilterResult result = MoveFilterResult.CONTINUE;
while (CheckMoveBoundary(p1, boundary, direction) && result == MoveFilterResult.CONTINUE)
{
lastGoodPosition.MoveToPointer(p1);
MovePointer(p1, direction, context);
result = continueFilter(context);
}
if (result == MoveFilterResult.CONTINUE)
{
//we hit the boundary, so position pointer at the boundary
p1.MoveToPointer(boundary);
}
else if (result == MoveFilterResult.STOP_BACK)
{
p1.MoveToPointer(lastGoodPosition);
}
p.MoveToPointer(p1);
}
private static void MoveUnitBounded(MarkupPointer p, MoveDirection direction, MoveContextFilter continueFilter, MarkupPointer boundary)
{
MarkupPointer p1 = p.Clone();
MarkupPointer lastGoodPosition = p.Clone();
MarkupContext context = new MarkupContext();
MoveFilterResult result = MoveFilterResult.CONTINUE;
while (CheckMoveBoundary(p1, boundary, direction) && result == MoveFilterResult.CONTINUE)
{
lastGoodPosition.MoveToPointer(p1);
MovePointer(p1, direction, context);
result = continueFilter(context);
}
if (result == MoveFilterResult.CONTINUE)
{
//we hit the boundary, so position pointer at the boundary
p1.MoveToPointer(boundary);
}
else if (result == MoveFilterResult.STOP_BACK)
{
p1.MoveToPointer(lastGoodPosition);
}
p.MoveToPointer(p1);
}
public static void MoveUnitBounded(MarkupPointer p, MoveDirection direction, MarkupPointerAdjacency stopRule, MarkupPointer boundary)
{
MoveContextFilter filter = CreateMoveContextFilter(stopRule);
MoveUnitBounded(p, direction, filter, boundary);
}
public CompoundMoveContextFilter(MoveContextFilter[] filters)
{
_filters = filters;
}