void CDasherModel::Reparent_root(int lower, int upper) {
DASHER_ASSERT(m_Root != NULL);
// Change the root node to the parent of the existing node. We need
// to recalculate the coordinates for the "new" root as the user may
// have moved around within the current root
CDasherNode *pNewRoot;
if(oldroots.size() == 0) {
pNewRoot = m_Root->RebuildParent();
}
else {
pNewRoot = oldroots.back();
oldroots.pop_back();
}
// Return if there's no existing parent and no way of recreating one
if(pNewRoot == NULL)
return;
pNewRoot->SetFlag(NF_COMMITTED, false);
CDasherNode *pCurrent = m_Root;
// Need to iterate through group pseudo-nodes
while(pCurrent != pNewRoot) {
lower = pCurrent->Lbnd();
upper = pCurrent->Hbnd();
pCurrent = pCurrent->Parent();
myint iWidth = upper - lower;
myint iRootWidth = m_Rootmax - m_Rootmin;
// Fail and undo root creation if the new root is bigger than allowed by normalisation
if(((myint((GetLongParameter(LP_NORMALIZATION) - upper)) / static_cast<double>(iWidth)) >
(m_Rootmax_max - m_Rootmax)/static_cast<double>(iRootWidth)) ||
((myint(lower) / static_cast<double>(iWidth)) >
(m_Rootmin - m_Rootmin_min) / static_cast<double>(iRootWidth))) {
pNewRoot->OrphanChild(m_Root);
delete pNewRoot;
return;
}
//Update the root coordinates to reflect the new root
m_Root = pNewRoot;
m_Rootmax = m_Rootmax + (myint((GetLongParameter(LP_NORMALIZATION) - upper)) * iRootWidth / iWidth);
m_Rootmin = m_Rootmin - (myint(lower) * iRootWidth / iWidth);
for(std::deque<SGotoItem>::iterator it(m_deGotoQueue.begin()); it != m_deGotoQueue.end(); ++it) {
iRootWidth = it->iN2 - it->iN1;
it->iN2 = it->iN2 + (myint((GetLongParameter(LP_NORMALIZATION) - upper)) * iRootWidth / iWidth);
it->iN1 = it->iN1 - (myint(lower) * iRootWidth / iWidth);
}
}
}
void CDasherInterfaceBase::SetOffset(int iOffset, bool bForce) {
if (iOffset == m_pDasherModel->GetOffset() && !bForce) return;
CDasherNode *pNode = m_pNCManager->GetAlphabetManager()->GetRoot(NULL, iOffset!=0, iOffset);
if (GetGameModule()) pNode->SetFlag(NF_GAME, true);
m_pDasherModel->SetNode(pNode);
//ACL TODO note that CTL_MOVE, etc., do not come here (that would probably
// rebuild the model / violently repaint the screen every time!). But we
// still want to notifyOffset all text actions, so the "New" suboption sees
// all the editing the user's done...
for (set<TextAction *>::iterator it = m_vTextActions.begin(); it!=m_vTextActions.end(); it++) {
(*it)->NotifyOffset(iOffset);
}
ScheduleRedraw();
}
