public bool CanReorder(ScenPart part, ReorderDirection dir)
{
if (!part.def.PlayerAddRemovable)
{
return(false);
}
int num = parts.IndexOf(part);
switch (dir)
{
case ReorderDirection.Up:
if (num == 0)
{
return(false);
}
if (num > 0 && !parts[num - 1].def.PlayerAddRemovable)
{
return(false);
}
return(true);
case ReorderDirection.Down:
return(num != parts.Count - 1);
default:
throw new NotImplementedException();
}
}
public bool CanReorder(ScenPart part, ReorderDirection dir)
{
bool result;
if (!part.def.PlayerAddRemovable)
{
result = false;
}
else
{
int num = this.parts.IndexOf(part);
if (dir == ReorderDirection.Up)
{
result = (num != 0 && (num <= 0 || this.parts[num - 1].def.PlayerAddRemovable));
}
else
{
if (dir != ReorderDirection.Down)
{
throw new NotImplementedException();
}
result = (num != this.parts.Count - 1);
}
}
return(result);
}
public static IList <int> Reorder(IList <int> indicies, int length, ReorderDirection moveDirection)
{
Contract.Requires(indicies != null, "indicies cannot be null");
Contract.Requires(length >= 0, "the target length cannot be negative");
Contract.Requires(indicies.Count <= length, "cannot have more indicies than the target length");
Contract.Requires(Contract.ForAll(indicies, i => i >= 0), "All indicies must be non-negative");
Contract.Requires(Contract.ForAll(indicies, i => i < length), "All indicies must be less than the target length");
Debug.Assert(indicies.TrueForAllAdjacentPairs((a, b) => a < b), "indicies should be sorted (and unique)");
if (indicies.Count > 0 && indicies.Count < length)
{
// a bit silly, but I hate doing math in comparisons
int lastPossibleIndex = length - 1;
// Two cases: bunched and unbunched
// 1 - Unbunched: two or more selected items that are not packed together
// Can always move unbunched items
// TODO: unbunched not supported at this time
// 2 - Bunched: one or more items, all together
// If items are bunched, can only move if there is room to move them in the desired direction
var bunched = indicies.TrueForAllAdjacentPairs((a, b) => (b - a) == 1);
if (bunched)
{
if (moveDirection == ReorderDirection.Beginning)
{
int leadIndex = indicies.First();
if (leadIndex == 0)
{
// already at the beginning
// cannot move
return(null);
}
else
{
// not at the beginning!
// move everything towards beginning!
return(indicies.Select(initial => initial - 1).ToArray());
}
}
else
{
Debug.Assert(moveDirection == ReorderDirection.End);
int leadIndex = indicies.Last();
if (leadIndex == lastPossibleIndex)
{
// already at the end
// cannot move
return(null);
}
else
{
return(indicies.Select(initial => initial + 1).ToArray());
}
}
}
}
return(null);
}
public void Reorder(ScenPart part, ReorderDirection dir)
{
int num = parts.IndexOf(part);
parts.RemoveAt(num);
if (dir == ReorderDirection.Up)
{
parts.Insert(num - 1, part);
}
if (dir == ReorderDirection.Down)
{
parts.Insert(num + 1, part);
}
}
public void Reorder(Guid id, ReorderDirection direction)
{
var modelToMove = GetModel(id);
if (modelToMove == null)
{
throw new NullReferenceException(string.Format("No ContentProvider model found with id = {0}", id));
}
if (direction == ReorderDirection.Up)
{
MoveModelUp(modelToMove);
}
if (direction == ReorderDirection.Down)
{
MoveModelDown(modelToMove);
}
return;
}
public static bool CanReorder(IList <int> indicies, int length, ReorderDirection direction)
{
var result = Reorder(indicies, length, direction);
return(result != null);
}
public static IList<int> Reorder(IList<int> indicies, int length, ReorderDirection moveDirection)
{
Contract.Requires(indicies != null, "indicies cannot be null");
Contract.Requires(length >= 0, "the target length cannot be negative");
Contract.Requires(indicies.Count <= length, "cannot have more indicies than the target length");
Contract.Requires(Contract.ForAll(indicies, i => i >= 0), "All indicies must be non-negative");
Contract.Requires(Contract.ForAll(indicies, i => i < length), "All indicies must be less than the target length");
Debug.Assert(indicies.TrueForAllAdjacentPairs((a, b) => a < b), "indicies should be sorted (and unique)");
if (indicies.Count > 0 && indicies.Count < length)
{
// a bit silly, but I hate doing math in comparisons
int lastPossibleIndex = length - 1;
// Two cases: bunched and unbunched
// 1 - Unbunched: two or more selected items that are not packed together
// Can always move unbunched items
// 2 - Bunched: one or more items, all together
// If items are bunched, can only move if there is room to move them in the desired direction
var bunched = indicies.TrueForAllAdjacentPairs((a, b) => (b - a) == 1);
if (bunched)
{
if (moveDirection == ReorderDirection.Beginning)
{
int leadIndex = indicies.First();
if (leadIndex == 0)
{
// already at the beginning
// cannot move
return null;
}
else
{
// not at the beginning!
// move everything towards beginning!
return indicies.Select(initial => initial - 1).ToArray();
}
}
else
{
Debug.Assert(moveDirection == ReorderDirection.End);
int leadIndex = indicies.Last();
if (leadIndex == lastPossibleIndex)
{
// already at the end
// cannot move
return null;
}
else
{
return indicies.Select(initial => initial + 1).ToArray();
}
}
}
else
{
Debug.Assert(indicies.Count > 1);
var slices = Slice(indicies);
if (moveDirection == ReorderDirection.Beginning)
{
var subSlice = slices.Last();
slices.Remove(subSlice);
// reorder just the subSlice
subSlice = Reorder(subSlice, length, moveDirection);
slices.Add(subSlice);
}
else
{
Debug.Assert(moveDirection == ReorderDirection.End);
var subSlice = slices.First();
slices.Remove(subSlice);
// reorder just the subSlice
subSlice = Reorder(subSlice, length, moveDirection);
slices.Insert(0, subSlice);
}
return slices.SelectMany(s => s).ToList();
}
}
return null;
}
public static bool CanReorder(IList<int> indicies, int length, ReorderDirection direction)
{
var result = Reorder(indicies, length, direction);
return result != null;
}