void EnsureRoot(double val)
{
if (null == this.root)
{
this.root = new IntervalBoundary(val, null);
}
}
private void EnsureRoot(double val)
{
if (this.root == null)
{
this.root = new IntervalBoundary(val, null);
}
}
internal bool MoveNext()
{
while (this.nextNode != null)
{
this.currentNode = this.nextNode;
double num = this.currentNode.Value;
if (this.val < num)
{
this.slot = this.currentNode.LtSlot;
this.nextNode = this.currentNode.Left;
}
else if (this.val > num)
{
this.slot = this.currentNode.GtSlot;
this.nextNode = this.currentNode.Right;
}
else
{
this.slot = this.currentNode.EqSlot;
this.nextNode = null;
}
if (this.slot != null)
{
return(true);
}
}
return(false);
}
internal IntervalTreeTraverser(double val, IntervalBoundary root)
{
this.currentNode = null;
this.slot = null;
this.nextNode = root;
this.val = val;
}
internal IntervalTreeTraverser(double val, IntervalBoundary root)
{
this.currentNode = null;
this.slot = null;
this.nextNode = root;
this.val = val;
}
void Replace(IntervalBoundary replace, IntervalBoundary with)
{
IntervalBoundary parent = replace.Parent;
if (null != parent)
{
if (replace == parent.Left)
{
parent.Left = with;
}
else if (replace == parent.Right)
{
parent.Right = with;
}
}
else
{
// Replacing root
this.root = with;
}
if (null != with)
{
with.Parent = parent;
}
}
internal bool MoveNext()
{
while (this.nextNode != null)
{
this.currentNode = this.nextNode;
double num = this.currentNode.Value;
if (this.val < num)
{
this.slot = this.currentNode.LtSlot;
this.nextNode = this.currentNode.Left;
}
else if (this.val > num)
{
this.slot = this.currentNode.GtSlot;
this.nextNode = this.currentNode.Right;
}
else
{
this.slot = this.currentNode.EqSlot;
this.nextNode = null;
}
if (this.slot != null)
{
return true;
}
}
return false;
}
internal bool MoveNext()
{
while (null != this.nextNode)
{
this.currentNode = this.nextNode;
double currentVal = this.currentNode.Value;
if (val < currentVal)
{
this.slot = this.currentNode.LtSlot;
this.nextNode = this.currentNode.Left;
}
else if (val > currentVal)
{
this.slot = this.currentNode.GtSlot;
this.nextNode = this.currentNode.Right;
}
else
{
this.slot = this.currentNode.EqSlot;
this.nextNode = null;
}
if (null != this.slot)
{
return(true);
}
}
return(false);
}
internal IntervalBoundary EnsureLeft(double val)
{
if (this.left == null)
{
this.left = new IntervalBoundary(val, this);
}
return this.left;
}
internal IntervalBoundary EnsureRight(double val)
{
if (this.right == null)
{
this.right = new IntervalBoundary(val, this);
}
return this.right;
}
internal IntervalBoundary EnsureRight(double val)
{
if (this.right == null)
{
this.right = new IntervalBoundary(val, this);
}
return(this.right);
}
internal IntervalBoundary EnsureLeft(double val)
{
if (this.left == null)
{
this.left = new IntervalBoundary(val, this);
}
return(this.left);
}
private void EditRight(Interval interval, bool add)
{
double num;
if (add)
{
this.EnsureRoot(interval.UpperBound);
}
IntervalBoundary root = this.root;
IntervalBoundary boundary2 = null;
Label_0018:
num = root.Value;
if (num > interval.UpperBound)
{
root = add ? root.EnsureLeft(interval.UpperBound) : root.Left;
goto Label_0018;
}
if ((boundary2 != null) && (boundary2.Value >= interval.LowerBound))
{
if (add)
{
root.AddToLtSlot(interval);
}
else
{
root.RemoveFromLtSlot(interval);
}
}
if (num < interval.UpperBound)
{
if (num > interval.LowerBound)
{
if (add)
{
root.AddToEqSlot(interval);
}
else
{
root.RemoveFromEqSlot(interval);
}
}
boundary2 = root;
root = add ? root.EnsureRight(interval.UpperBound) : root.Right;
goto Label_0018;
}
if (IntervalOp.LessThanEquals == interval.UpperOp)
{
if (add)
{
root.AddToEqSlot(interval);
}
else
{
root.RemoveFromEqSlot(interval);
}
}
}
private void EditLeft(Interval interval, bool add)
{
double num;
if (add)
{
this.EnsureRoot(interval.LowerBound);
}
IntervalBoundary root = this.root;
IntervalBoundary boundary2 = null;
Label_0018:
num = root.Value;
if (num < interval.LowerBound)
{
root = add ? root.EnsureRight(interval.LowerBound) : root.Right;
goto Label_0018;
}
if ((boundary2 != null) && (boundary2.Value <= interval.UpperBound))
{
if (add)
{
root.AddToGtSlot(interval);
}
else
{
root.RemoveFromGtSlot(interval);
}
}
if (num > interval.LowerBound)
{
if (num < interval.UpperBound)
{
if (add)
{
root.AddToEqSlot(interval);
}
else
{
root.RemoveFromEqSlot(interval);
}
}
boundary2 = root;
root = add ? root.EnsureLeft(interval.LowerBound) : root.Left;
goto Label_0018;
}
if (IntervalOp.LessThanEquals == interval.LowerOp)
{
if (add)
{
root.AddToEqSlot(interval);
}
else
{
root.RemoveFromEqSlot(interval);
}
}
}
void RemoveBoundary(IntervalBoundary boundary)
{
IntervalCollection replacementIntervals = null;
int replacementCount = 0;
if (null != boundary.Left && null != boundary.Right)
{
// Neither left/right are null. Typical binary tree node removal - replace the removed node
// with the symmetric order predecessor
IntervalBoundary replacement = boundary.Left;
while (null != replacement.Right)
{
replacement = replacement.Right;
}
// Find all intervals with endpoint y in the tree
replacementIntervals = this.intervals.GetIntervalsWithEndPoint(replacement.Value);
// Remove the intervals from the tree
replacementCount = replacementIntervals.Count;
for (int i = 0; i < replacementCount; ++i)
{
this.RemoveIntervalFromTree(replacementIntervals[i]);
}
double val = boundary.Value;
boundary.Value = replacement.Value;
replacement.Value = val;
boundary = replacement;
}
if (null != boundary.Left)
{
this.Replace(boundary, boundary.Left);
}
else
{
this.Replace(boundary, boundary.Right);
}
// Discard the node
boundary.Parent = null;
boundary.Left = null;
boundary.Right = null;
// Reinstall Intervals
for (int i = 0; i < replacementCount; ++i)
{
this.AddIntervalToTree(replacementIntervals[i]);
}
}
internal IntervalBoundary FindBoundaryNode(IntervalBoundary root, double val)
{
IntervalBoundary boundary = null;
if (root != null)
{
if (root.Value == val)
{
return(root);
}
boundary = this.FindBoundaryNode(root.Left, val);
if (boundary == null)
{
boundary = this.FindBoundaryNode(root.Right, val);
}
}
return(boundary);
}
internal IntervalBoundary FindBoundaryNode(IntervalBoundary root, double val)
{
IntervalBoundary boundary = null;
if (null != root)
{
if (root.Value == val)
{
boundary = root;
}
else
{
if (null == (boundary = this.FindBoundaryNode(root.Left, val)))
{
boundary = this.FindBoundaryNode(root.Right, val);
}
}
}
return(boundary);
}
private void RemoveBoundary(IntervalBoundary boundary)
{
IntervalCollection intervalsWithEndPoint = null;
int count = 0;
if ((boundary.Left != null) && (boundary.Right != null))
{
IntervalBoundary left = boundary.Left;
while (left.Right != null)
{
left = left.Right;
}
intervalsWithEndPoint = this.intervals.GetIntervalsWithEndPoint(left.Value);
count = intervalsWithEndPoint.Count;
for (int j = 0; j < count; j++)
{
this.RemoveIntervalFromTree(intervalsWithEndPoint[j]);
}
double num3 = boundary.Value;
boundary.Value = left.Value;
left.Value = num3;
boundary = left;
}
if (boundary.Left != null)
{
this.Replace(boundary, boundary.Left);
}
else
{
this.Replace(boundary, boundary.Right);
}
boundary.Parent = null;
boundary.Left = null;
boundary.Right = null;
for (int i = 0; i < count; i++)
{
this.AddIntervalToTree(intervalsWithEndPoint[i]);
}
}
private void Replace(IntervalBoundary replace, IntervalBoundary with)
{
IntervalBoundary parent = replace.Parent;
if (parent != null)
{
if (replace == parent.Left)
{
parent.Left = with;
}
else if (replace == parent.Right)
{
parent.Right = with;
}
}
else
{
this.root = with;
}
if (with != null)
{
with.Parent = parent;
}
}
internal IntervalBoundary(double val, IntervalBoundary parent)
{
this.val = val;
this.parent = parent;
}
private void EnsureRoot(double val)
{
if (this.root == null)
{
this.root = new IntervalBoundary(val, null);
}
}
internal IntervalBoundary FindBoundaryNode(IntervalBoundary root, double val)
{
IntervalBoundary boundary = null;
if (root != null)
{
if (root.Value == val)
{
return root;
}
boundary = this.FindBoundaryNode(root.Left, val);
if (boundary == null)
{
boundary = this.FindBoundaryNode(root.Right, val);
}
}
return boundary;
}
internal IntervalBoundary(double val, IntervalBoundary parent)
{
this.val = val;
this.parent = parent;
}
void Replace(IntervalBoundary replace, IntervalBoundary with)
{
IntervalBoundary parent = replace.Parent;
if (null != parent)
{
if (replace == parent.Left)
{
parent.Left = with;
}
else if (replace == parent.Right)
{
parent.Right = with;
}
}
else
{
// Replacing root
this.root = with;
}
if (null != with)
{
with.Parent = parent;
}
}
void RemoveBoundary(IntervalBoundary boundary)
{
IntervalCollection replacementIntervals = null;
int replacementCount = 0;
if (null != boundary.Left && null != boundary.Right)
{
// Neither left/right are null. Typical binary tree node removal - replace the removed node
// with the symmetric order predecessor
IntervalBoundary replacement = boundary.Left;
while (null != replacement.Right)
{
replacement = replacement.Right;
}
// Find all intervals with endpoint y in the tree
replacementIntervals = this.intervals.GetIntervalsWithEndPoint(replacement.Value);
// Remove the intervals from the tree
replacementCount = replacementIntervals.Count;
for (int i = 0; i < replacementCount; ++i)
{
this.RemoveIntervalFromTree(replacementIntervals[i]);
}
double val = boundary.Value;
boundary.Value = replacement.Value;
replacement.Value = val;
boundary = replacement;
}
if (null != boundary.Left)
{
this.Replace(boundary, boundary.Left);
}
else
{
this.Replace(boundary, boundary.Right);
}
// Discard the node
boundary.Parent = null;
boundary.Left = null;
boundary.Right = null;
// Reinstall Intervals
for (int i = 0; i < replacementCount; ++i)
{
this.AddIntervalToTree(replacementIntervals[i]);
}
}
internal IntervalBoundary FindBoundaryNode(IntervalBoundary root, double val)
{
IntervalBoundary boundary = null;
if (null != root)
{
if (root.Value == val)
{
boundary = root;
}
else
{
if (null == (boundary = this.FindBoundaryNode(root.Left, val)))
{
boundary = this.FindBoundaryNode(root.Right, val);
}
}
}
return boundary;
}
void EnsureRoot(double val)
{
if (null == this.root)
{
this.root = new IntervalBoundary(val, null);
}
}
void EditRight(Interval interval, bool add)
{
if (add)
{
this.EnsureRoot(interval.UpperBound);
}
IntervalBoundary root = this.root;
IntervalBoundary rightAncestor = null;
while (true)
{
double rootVal = root.Value;
if (rootVal > interval.UpperBound)
{
// root is outside the interval range because it is > the upper bound
root = add ? root.EnsureLeft(interval.UpperBound) : root.Left;
continue;
}
// rootVal is <= to interval.UpperBound
//
// All values in the subtree at 'root' are > leftAncestor.Value
// All values to the right of this node cannot be in the interval because they are > the interval's
// upper bound.
// Values to the left of this node lie in range (rightAncestor.Value to root.Value)
// Thus, the entire left subtree of root will be inside the range if the interval.lowerBound
// is <= rightAncestor.Value
if (null != rightAncestor && rightAncestor.Value >= interval.LowerBound)
{
if (add)
{
root.AddToLtSlot(interval);
}
else
{
root.RemoveFromLtSlot(interval);
}
}
if (rootVal < interval.UpperBound)
{
// This node itself lies in the range if it is also > the lower bound
if (rootVal > interval.LowerBound)
{
if (add)
{
root.AddToEqSlot(interval);
}
else
{
root.RemoveFromEqSlot(interval);
}
}
rightAncestor = root;
root = add ? root.EnsureRight(interval.UpperBound) : root.Right;
continue;
}
// upperBound == rootVal. We're done.
// If upperBound == lowerBound, we already inserted this when doing AddLeft
if (IntervalOp.LessThanEquals == interval.UpperOp)
{
// If the range is inclusive of the upper bound, then since this node == upperBound,
// it must be in the range.
if (add)
{
root.AddToEqSlot(interval);
}
else
{
root.RemoveFromEqSlot(interval);
}
}
break;
}
}
internal bool MoveNext()
{
while (null != this.nextNode)
{
this.currentNode = this.nextNode;
double currentVal = this.currentNode.Value;
if (val < currentVal)
{
this.slot = this.currentNode.LtSlot;
this.nextNode = this.currentNode.Left;
}
else if (val > currentVal)
{
this.slot = this.currentNode.GtSlot;
this.nextNode = this.currentNode.Right;
}
else
{
this.slot = this.currentNode.EqSlot;
this.nextNode = null;
}
if (null != this.slot)
{
return true;
}
}
return false;
}
private void RemoveBoundary(IntervalBoundary boundary)
{
IntervalCollection intervalsWithEndPoint = null;
int count = 0;
if ((boundary.Left != null) && (boundary.Right != null))
{
IntervalBoundary left = boundary.Left;
while (left.Right != null)
{
left = left.Right;
}
intervalsWithEndPoint = this.intervals.GetIntervalsWithEndPoint(left.Value);
count = intervalsWithEndPoint.Count;
for (int j = 0; j < count; j++)
{
this.RemoveIntervalFromTree(intervalsWithEndPoint[j]);
}
double num3 = boundary.Value;
boundary.Value = left.Value;
left.Value = num3;
boundary = left;
}
if (boundary.Left != null)
{
this.Replace(boundary, boundary.Left);
}
else
{
this.Replace(boundary, boundary.Right);
}
boundary.Parent = null;
boundary.Left = null;
boundary.Right = null;
for (int i = 0; i < count; i++)
{
this.AddIntervalToTree(intervalsWithEndPoint[i]);
}
}
private void Replace(IntervalBoundary replace, IntervalBoundary with)
{
IntervalBoundary parent = replace.Parent;
if (parent != null)
{
if (replace == parent.Left)
{
parent.Left = with;
}
else if (replace == parent.Right)
{
parent.Right = with;
}
}
else
{
this.root = with;
}
if (with != null)
{
with.Parent = parent;
}
}
void EditRight(Interval interval, bool add)
{
if (add)
{
this.EnsureRoot(interval.UpperBound);
}
IntervalBoundary root = this.root;
IntervalBoundary rightAncestor = null;
while (true)
{
double rootVal = root.Value;
if (rootVal > interval.UpperBound)
{
// root is outside the interval range because it is > the upper bound
root = add ? root.EnsureLeft(interval.UpperBound) : root.Left;
continue;
}
// rootVal is <= to interval.UpperBound
//
// All values in the subtree at 'root' are > leftAncestor.Value
// All values to the right of this node cannot be in the interval because they are > the interval's
// upper bound.
// Values to the left of this node lie in range (rightAncestor.Value to root.Value)
// Thus, the entire left subtree of root will be inside the range if the interval.lowerBound
// is <= rightAncestor.Value
if (null != rightAncestor && rightAncestor.Value >= interval.LowerBound)
{
if (add)
{
root.AddToLtSlot(interval);
}
else
{
root.RemoveFromLtSlot(interval);
}
}
if (rootVal < interval.UpperBound)
{
// This node itself lies in the range if it is also > the lower bound
if (rootVal > interval.LowerBound)
{
if (add)
{
root.AddToEqSlot(interval);
}
else
{
root.RemoveFromEqSlot(interval);
}
}
rightAncestor = root;
root = add ? root.EnsureRight(interval.UpperBound) : root.Right;
continue;
}
// upperBound == rootVal. We're done.
// If upperBound == lowerBound, we already inserted this when doing AddLeft
if (IntervalOp.LessThanEquals == interval.UpperOp)
{
// If the range is inclusive of the upper bound, then since this node == upperBound,
// it must be in the range.
if (add)
{
root.AddToEqSlot(interval);
}
else
{
root.RemoveFromEqSlot(interval);
}
}
break;
}
}