Src/DasherCore/ConvertingAlphMgr.cpp

   1 /*
   2  *  ConvertingAlphMgr.cpp
   3  *  Dasher
   4  *
   5  *  Created by Alan Lawrence on 06/08/2010.
   6  *  Copyright 2010 Cavendish Laboratory. All rights reserved.
   7  *
   8  */
   9
  10 #include "ConvertingAlphMgr.h"
  11 #include "NodeCreationManager.h"
  12
  13 using namespace Dasher;
  14
  15 CConvertingAlphMgr::CConvertingAlphMgr(CSettingsUser *pCreateFrom, CDasherInterfaceBase *pInterface, CNodeCreationManager *pNCManager, CConversionManager *pConvMgr, const CAlphInfo *pAlphabet)
  16  : CAlphabetManager(pCreateFrom, pInterface, pNCManager, pAlphabet), m_pConvMgr(pConvMgr) {
  17  }
  18
  19 void CConvertingAlphMgr::MakeLabels(CDasherScreen *pScreen) {
  20   CAlphabetManager::MakeLabels(pScreen);
  21   m_pConvMgr->ChangeScreen(pScreen);
  22 }
  23
  24 CConvertingAlphMgr::~CConvertingAlphMgr() {
  25 }
  26
  27 CDasherNode *CConvertingAlphMgr::CreateSymbolNode(CAlphNode *pParent, symbol iSymbol) {
  28   //int i=m_pAlphabet->iEnd;
  29   if (iSymbol == m_pAlphabet->iEnd) {
  30     pParent->GetProbInfo();
  31     DASHER_ASSERT(pCProb->size() == m_pAlphabet->iEnd+1);//initial 0, final conversion prob
  32
  33     //this used to be the "CloneAlphContext" method. Why it uses the
  34     // ConversionManager's LM to clone a context from an Alphabet Node,
  35     // I don't know - not sure how LanguageModelling WRT conversion
  36     // is supposed to work...
  37     CLanguageModel::Context iContext = (pParent->iContext)
  38       ? m_pConvMgr->m_pLanguageModel->CloneContext(pParent->iContext)
  39       : m_pConvMgr->m_pLanguageModel->CreateEmptyContext();
  40
  41     //ACL setting m_iOffset+1 for consistency with "proper" symbol nodes...
  42     return m_pConvMgr->GetRoot(pParent->offset()+1, iContext);
  43     //Note: previous code used (*pCProb)[i-1] and (*pCProb)[i] instead of
  44     // iLbnd and iHbnd passed in; presumably these must have been the same?
  45   } else {
  46     return CAlphabetManager::CreateSymbolNode(pParent, iSymbol);
  47   }
  48 }