// Function ReplacePartialRoot replaces all full nodes by a single P-node
// with leaves corresponding the keys stored in leafKeys.
void PlanarPQTree::ReplacePartialRoot(SListPure<PlanarLeafKey<indInfo*>*> &leafKeys)
{
m_pertinentRoot->childCount(m_pertinentRoot->childCount() + 1 -
fullChildren(m_pertinentRoot)->size());
while (fullChildren(m_pertinentRoot)->size() > 1)
removeChildFromSiblings(fullChildren(m_pertinentRoot)->popFrontRet());
PQNode<edge,indInfo*,bool> *currentNode = fullChildren(m_pertinentRoot)->popFrontRet();
currentNode->parent(m_pertinentRoot);
m_pertinentRoot = currentNode;
ReplaceFullRoot(leafKeys);
}
// Function ReplaceFullRoot either replaces the full root
// or one full child of a partial root of a pertinent subtree
// by a single P-node with leaves corresponding the keys stored in leafKeys.
void PlanarSubgraphPQTree::
ReplaceFullRoot(SListPure<PlanarLeafKey<whaInfo*>*> &leafKeys)
{
PQLeaf<edge,whaInfo*,bool> *leafPtr = 0; // dummy
PQInternalNode<edge,whaInfo*,bool> *nodePtr = 0; // dummy
//PQNodeKey<edge,whaInfo*,bool> *nodeInfoPtr = 0; // dummy
PQNode<edge,whaInfo*,bool> *currentNode = 0; // dummy
SListIterator<PlanarLeafKey<whaInfo*>* > it;
if (!leafKeys.empty() && leafKeys.front() == leafKeys.back())
{
//ReplaceFullRoot: replace pertinent root by a single leaf
leafPtr = OGDF_NEW PQLeaf<edge,whaInfo*,bool>(m_identificationNumber++,
EMPTY,(PQLeafKey<edge,whaInfo*,bool>*)leafKeys.front());
exchangeNodes(m_pertinentRoot,(PQNode<edge,whaInfo*,bool>*) leafPtr);
if (m_pertinentRoot == m_root)
m_root = (PQNode<edge,whaInfo*,bool>*) leafPtr;
}
else if (!leafKeys.empty()) // at least two leaves
{
//replace pertinent root by a $P$-node
if ((m_pertinentRoot->type() == P_NODE) ||
(m_pertinentRoot->type() == Q_NODE))
{
nodePtr = (PQInternalNode<edge,whaInfo*,bool>*)m_pertinentRoot;
nodePtr->type(P_NODE);
nodePtr->status(PERTROOT);
nodePtr->childCount(0);
while (!fullChildren(m_pertinentRoot)->empty())
{
currentNode = fullChildren(m_pertinentRoot)->popFrontRet();
removeChildFromSiblings(currentNode);
}
}
else if (m_pertinentRoot->type() == LEAF)
{
nodePtr = OGDF_NEW PQInternalNode<edge,whaInfo*,bool>(m_identificationNumber++,
P_NODE,EMPTY);
exchangeNodes(m_pertinentRoot,nodePtr);
}
SListPure<PQLeafKey<edge,whaInfo*,bool>*> castLeafKeys;
for (it = leafKeys.begin(); it.valid(); ++it)
castLeafKeys.pushBack((PQLeafKey<edge,whaInfo*,bool>*) *it);
addNewLeavesToTree(nodePtr,castLeafKeys);
}
}
// Function ReplaceFullRoot either replaces the full root
// or one full child of a partial root of a pertinent subtree
// by a single P-node with leaves corresponding the keys stored in leafKeys.
void PlanarPQTree::ReplaceFullRoot(SListPure<PlanarLeafKey<indInfo*>*> &leafKeys)
{
if (!leafKeys.empty() && leafKeys.front() == leafKeys.back())
{
//ReplaceFullRoot: replace pertinent root by a single leaf
PQLeaf<edge,indInfo*,bool> *leafPtr =
OGDF_NEW PQLeaf<edge,indInfo*,bool>(m_identificationNumber++,
EMPTY,(PQLeafKey<edge,indInfo*,bool>*)leafKeys.front());
exchangeNodes(m_pertinentRoot,(PQNode<edge,indInfo*,bool>*) leafPtr);
if (m_pertinentRoot == m_root)
m_root = (PQNode<edge,indInfo*,bool>*) leafPtr;
m_pertinentRoot = 0; // check for this emptyAllPertinentNodes
}
else if (!leafKeys.empty()) // at least two leaves
{
PQInternalNode<edge,indInfo*,bool> *nodePtr = 0; // dummy
//replace pertinent root by a $P$-node
if ((m_pertinentRoot->type() == PQNodeRoot::PNode) ||
(m_pertinentRoot->type() == PQNodeRoot::QNode))
{
nodePtr = (PQInternalNode<edge,indInfo*,bool>*)m_pertinentRoot;
nodePtr->type(PQNodeRoot::PNode);
nodePtr->childCount(0);
while (!fullChildren(m_pertinentRoot)->empty())
removeChildFromSiblings(fullChildren(m_pertinentRoot)->popFrontRet());
}
else if (m_pertinentRoot->type() == PQNodeRoot::leaf)
{
nodePtr = OGDF_NEW PQInternalNode<edge,indInfo*,bool>(m_identificationNumber++,
PQNodeRoot::PNode,EMPTY);
exchangeNodes(m_pertinentRoot,nodePtr);
m_pertinentRoot = 0; // check for this emptyAllPertinentNodes
}
SListPure<PQLeafKey<edge,indInfo*,bool>*> castLeafKeys;
SListIterator<PlanarLeafKey<indInfo*>* > it;
for (it = leafKeys.begin(); it.valid(); ++it)
castLeafKeys.pushBack((PQLeafKey<edge,indInfo*,bool>*) *it);
addNewLeavesToTree(nodePtr,castLeafKeys);
}
}
void EmbedPQTree::ReplacePartialRoot(
SListPure<PlanarLeafKey<indInfo*>*> &leafKeys,
SListPure<PQBasicKey<edge,indInfo*,bool>*> &frontier,
node v)
{
m_pertinentRoot->childCount(m_pertinentRoot->childCount() + 1 -
fullChildren(m_pertinentRoot)->size());
PQNode<edge,indInfo*,bool> *predNode = 0; // dummy
PQNode<edge,indInfo*,bool> *beginSequence = 0; // marks begin consecuitve seqeunce
PQNode<edge,indInfo*,bool> *endSequence = 0; // marks end consecutive sequence
PQNode<edge,indInfo*,bool> *beginInd = 0; // initially, marks direct sibling indicator
// next to beginSequence not contained
// in consectuive sequence
// Get beginning and end of sequence.
while (fullChildren(m_pertinentRoot)->size())
{
PQNode<edge,indInfo*,bool> *currentNode = fullChildren(m_pertinentRoot)->popFrontRet();
if (!clientSibLeft(currentNode) ||
clientSibLeft(currentNode)->status() == EMPTY)
{
if (!beginSequence)
{
beginSequence = currentNode;
predNode = clientSibLeft(currentNode);
beginInd =PQTree<edge,indInfo*,bool>::clientSibLeft(currentNode);
}
else
endSequence = currentNode;
}
else if (!clientSibRight(currentNode) ||
clientSibRight(currentNode)->status() == EMPTY )
{
if (!beginSequence)
{
beginSequence = currentNode;
predNode = clientSibRight(currentNode);
beginInd =PQTree<edge,indInfo*,bool>::clientSibRight(currentNode);
}
else
endSequence = currentNode;
}
}
SListPure<PQBasicKey<edge,indInfo*,bool>*> partialFrontier;
// Now scan the sequence of full nodes. Remove all of them but the last.
// Call ReplaceFullRoot on the last one.
// For every full node get its frontier. Scan intermediate indicators.
PQNode<edge,indInfo*,bool> *currentNode = beginSequence;
while (currentNode != endSequence)
{
PQNode<edge,indInfo*,bool>* nextNode =
clientNextSib(currentNode,predNode);
front(currentNode,partialFrontier);
frontier.conc(partialFrontier);
PQNode<edge,indInfo*,bool>* currentInd = PQTree<edge,indInfo*,bool>::
clientNextSib(currentNode,beginInd);
// Scan for intermediate direction indicators.
while (currentInd != nextNode)
{
PQNode<edge,indInfo*,bool> *nextInd = PQTree<edge,indInfo*,bool>::
clientNextSib(currentInd,currentNode);
if (currentNode == currentInd->getSib(RIGHT)) //Direction changed
currentInd->getNodeInfo()->userStructInfo()->changeDir = true;
frontier.pushBack((PQBasicKey<edge,indInfo*,bool>*)
currentInd->getNodeInfo());
removeChildFromSiblings(currentInd);
m_pertinentNodes->pushBack(currentInd);
currentInd = nextInd;
}
removeChildFromSiblings(currentNode);
currentNode = nextNode;
}
currentNode->parent(m_pertinentRoot);
m_pertinentRoot = currentNode;
ReplaceFullRoot(leafKeys,partialFrontier,v,true,beginInd);
frontier.conc(partialFrontier);
}
void EmbedPQTree::ReplaceFullRoot(
SListPure<PlanarLeafKey<indInfo*>*> &leafKeys,
SListPure<PQBasicKey<edge,indInfo*,bool>*> &frontier,
node v,
bool addIndicator,
PQNode<edge,indInfo*,bool> *opposite)
{
EmbedIndicator *newInd = 0;
front(m_pertinentRoot,frontier);
if (addIndicator)
{
indInfo *newInfo = OGDF_NEW indInfo(v);
embedKey *nodeInfoPtr = OGDF_NEW embedKey(newInfo);
newInd = OGDF_NEW EmbedIndicator(m_identificationNumber++,
(PQNodeKey<edge,indInfo*,bool>*)nodeInfoPtr);
newInd->setNodeInfo(nodeInfoPtr);
nodeInfoPtr->setNodePointer(newInd);
}
if (!leafKeys.empty() && leafKeys.front() == leafKeys.back())
{
//ReplaceFullRoot: replace pertinent root by a single leaf
if (addIndicator)
{
opposite = m_pertinentRoot->getNextSib(opposite);
if (!opposite) // m_pertinentRoot is endmost child
{
addNodeToNewParent(m_pertinentRoot->parent(),newInd,
m_pertinentRoot,opposite);
}
else
addNodeToNewParent(0,newInd,m_pertinentRoot,opposite);
// Setting the sibling pointers into opposite direction of
// scanning the front allows to track swaps of the indicator
newInd->changeSiblings(m_pertinentRoot,0);
newInd->changeSiblings(opposite,0);
newInd->putSibling(m_pertinentRoot,LEFT);
newInd->putSibling(opposite,RIGHT);
}
PQLeaf<edge,indInfo*,bool> *leafPtr =
OGDF_NEW PQLeaf<edge,indInfo*,bool>(m_identificationNumber++,
EMPTY,(PQLeafKey<edge,indInfo*,bool>*)leafKeys.front());
exchangeNodes(m_pertinentRoot,(PQNode<edge,indInfo*,bool>*) leafPtr);
if (m_pertinentRoot == m_root)
m_root = (PQNode<edge,indInfo*,bool>*) leafPtr;
m_pertinentRoot = 0; // check for this emptyAllPertinentNodes
}
else if (!leafKeys.empty()) // at least two leaves
{
//replace pertinent root by a $P$-node
if (addIndicator)
{
opposite = m_pertinentRoot->getNextSib(opposite);
if (!opposite) // m_pertinentRoot is endmost child
{
addNodeToNewParent(m_pertinentRoot->parent(),newInd,
m_pertinentRoot,opposite);
}
else
addNodeToNewParent(0,newInd,m_pertinentRoot,opposite);
// Setting the sibling pointers into opposite direction of
// scanning the front allows to track swaps of the indicator
newInd->changeSiblings(m_pertinentRoot,0);
newInd->changeSiblings(opposite,0);
newInd->putSibling(m_pertinentRoot,LEFT);
newInd->putSibling(opposite,RIGHT);
}
PQInternalNode<edge,indInfo*,bool> *nodePtr = 0; // dummy
if ((m_pertinentRoot->type() == PQNodeRoot::PNode) ||
(m_pertinentRoot->type() == PQNodeRoot::QNode))
{
nodePtr = (PQInternalNode<edge,indInfo*,bool>*)m_pertinentRoot;
nodePtr->type(PQNodeRoot::PNode);
nodePtr->childCount(0);
while (!fullChildren(m_pertinentRoot)->empty())
{
PQNode<edge,indInfo*,bool> *currentNode =
fullChildren(m_pertinentRoot)->popFrontRet();
removeChildFromSiblings(currentNode);
}
}
else if (m_pertinentRoot->type() == PQNodeRoot::leaf)
{
nodePtr = OGDF_NEW PQInternalNode<edge,indInfo*,bool>(m_identificationNumber++,
PQNodeRoot::PNode,EMPTY);
exchangeNodes(m_pertinentRoot,nodePtr);
m_pertinentRoot = 0; // check for this emptyAllPertinentNodes
}
SListPure<PQLeafKey<edge,indInfo*,bool>*> castLeafKeys;
SListIterator<PlanarLeafKey<indInfo*>* > it;
for (it = leafKeys.begin(); it.valid(); ++it)
castLeafKeys.pushBack((PQLeafKey<edge,indInfo*,bool>*) *it);
addNewLeavesToTree(nodePtr,castLeafKeys);
}
}
void EmbedPQTree::ReplaceFullRoot(
SListPure<PlanarLeafKey<IndInfo*>*> &leafKeys,
SListPure<PQBasicKey<edge,IndInfo*,bool>*> &frontier,
node v,
bool addIndicator,
PQNode<edge,IndInfo*,bool> *opposite)
{
EmbedIndicator *newInd = nullptr;
front(m_pertinentRoot,frontier);
if (addIndicator)
{
IndInfo *newInfo = new IndInfo(v);
PQNodeKey<edge,IndInfo*,bool> *nodeInfoPtr = new PQNodeKey<edge,IndInfo*,bool>(newInfo);
newInd = new EmbedIndicator(m_identificationNumber++, nodeInfoPtr);
newInd->setNodeInfo(nodeInfoPtr);
nodeInfoPtr->setNodePointer(newInd);
}
if (!leafKeys.empty() && leafKeys.front() == leafKeys.back())
{
//ReplaceFullRoot: replace pertinent root by a single leaf
if (addIndicator)
{
opposite = m_pertinentRoot->getNextSib(opposite);
if (!opposite) // m_pertinentRoot is endmost child
{
addNodeToNewParent(m_pertinentRoot->parent(), newInd, m_pertinentRoot, opposite);
}
else
addNodeToNewParent(nullptr,newInd,m_pertinentRoot,opposite);
// Setting the sibling pointers into opposite direction of
// scanning the front allows to track swaps of the indicator
newInd->changeSiblings(m_pertinentRoot,nullptr);
newInd->changeSiblings(opposite,nullptr);
newInd->putSibling(m_pertinentRoot,PQNodeRoot::SibDirection::Left);
newInd->putSibling(opposite,PQNodeRoot::SibDirection::Right);
}
PQLeaf<edge,IndInfo*,bool> *leafPtr =
new PQLeaf<edge,IndInfo*,bool>(m_identificationNumber++,
PQNodeRoot::PQNodeStatus::Empty,(PQLeafKey<edge,IndInfo*,bool>*)leafKeys.front());
exchangeNodes(m_pertinentRoot,(PQNode<edge,IndInfo*,bool>*) leafPtr);
if (m_pertinentRoot == m_root)
m_root = (PQNode<edge,IndInfo*,bool>*) leafPtr;
m_pertinentRoot = nullptr; // check for this emptyAllPertinentNodes
}
else if (!leafKeys.empty()) // at least two leaves
{
//replace pertinent root by a $P$-node
if (addIndicator)
{
opposite = m_pertinentRoot->getNextSib(opposite);
if (!opposite) // m_pertinentRoot is endmost child
{
addNodeToNewParent(m_pertinentRoot->parent(), newInd, m_pertinentRoot, opposite);
}
else
addNodeToNewParent(nullptr, newInd, m_pertinentRoot, opposite);
// Setting the sibling pointers into opposite direction of
// scanning the front allows to track swaps of the indicator
newInd->changeSiblings(m_pertinentRoot,nullptr);
newInd->changeSiblings(opposite,nullptr);
newInd->putSibling(m_pertinentRoot,PQNodeRoot::SibDirection::Left);
newInd->putSibling(opposite,PQNodeRoot::SibDirection::Right);
}
PQInternalNode<edge,IndInfo*,bool> *nodePtr = nullptr; // dummy
if ((m_pertinentRoot->type() == PQNodeRoot::PQNodeType::PNode) ||
(m_pertinentRoot->type() == PQNodeRoot::PQNodeType::QNode))
{
nodePtr = (PQInternalNode<edge,IndInfo*,bool>*)m_pertinentRoot;
nodePtr->type(PQNodeRoot::PQNodeType::PNode);
nodePtr->childCount(0);
while (!fullChildren(m_pertinentRoot)->empty())
{
PQNode<edge,IndInfo*,bool> *currentNode =
fullChildren(m_pertinentRoot)->popFrontRet();
removeChildFromSiblings(currentNode);
}
}
else if (m_pertinentRoot->type() == PQNodeRoot::PQNodeType::Leaf)
{
nodePtr = new PQInternalNode<edge,IndInfo*,bool>(m_identificationNumber++,
PQNodeRoot::PQNodeType::PNode,
PQNodeRoot::PQNodeStatus::Empty);
exchangeNodes(m_pertinentRoot,nodePtr);
m_pertinentRoot = nullptr; // check for this emptyAllPertinentNodes
}
SListPure<PQLeafKey<edge, IndInfo*, bool>*> castLeafKeys;
for (PlanarLeafKey<IndInfo*> *key : leafKeys)
castLeafKeys.pushBack(static_cast<PQLeafKey<edge, IndInfo*, bool>*>(key));
addNewLeavesToTree(nodePtr, castLeafKeys);
}
}
