1 files changed, 77 insertions, 0 deletions

diff --git a/inputmethods/dasher/LanguageModel.cpp b/inputmethods/dasher/LanguageModel.cpp
new file mode 100644
index 0000000..9635273
--- a/dev/null
+++ b/inputmethods/dasher/LanguageModel.cpp
@@ -0,0 +1,77 @@
+// LanguageModel.cpp
+//
+/////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2001-2002 David Ward
+//
+/////////////////////////////////////////////////////////////////////////////
+
+#include "LanguageModel.h"
+
+using namespace Dasher;
+using namespace std;
+
+// I have removed the following as it doesn't seem to compile in gcc:
+
+// using CLanguageModel::CNodeContext;
+
+///////////////////////////////////////////////////////////////////
+
+CLanguageModel::CLanguageModel(CAlphabet* Alphabet, int Normalization)
+        : m_Alphabet(Alphabet), m_iNorm(Normalization)
+{
+        m_iModelChars = m_Alphabet->GetNumberSymbols();
+}
+
+
+///////////////////////////////////////////////////////////////////
+
+void CLanguageModel::EnterText(CNodeContext* NodeContext, string TheText)
+{
+        vector<symbol> Symbols;
+        m_Alphabet->GetSymbols(&Symbols, &TheText, false);
+        for (unsigned int i=0; i<Symbols.size(); i++)
+                EnterSymbol((CContext*) NodeContext, (modelchar) Symbols[i]);
+}
+
+///////////////////////////////////////////////////////////////////
+
+void CLanguageModel::LearnText(CNodeContext* NodeContext, string* TheText, bool IsMore)
+{
+        vector<symbol> Symbols;
+        
+        m_Alphabet->GetSymbols(&Symbols, TheText, IsMore);
+        
+        for (unsigned int i=0; i<Symbols.size(); i++)
+                LearnSymbol((CContext*) NodeContext, (modelchar) Symbols[i]);
+}
+
+///////////////////////////////////////////////////////////////////
+
+bool CLanguageModel::GetNodeProbs(CNodeContext* Context, vector<symbol> &NewSymbols,
+                vector<unsigned int> &Groups, vector<unsigned int> &Probs, double AddProb)
+{
+        // make sure it is a valid context
+        if (Context) {
+                int s = m_Alphabet->GetNumberSymbols();
+                NewSymbols.resize(s);
+                Groups.resize(s);
+                for (int i=0;i<s;i++) {
+                        NewSymbols[i]=i; // This will be replaced by something that works out valid nodes for this context
+                        Groups[i]=m_Alphabet->get_group(i);
+                }
+                GetProbs((CContext*) Context,Probs,AddProb);
+                return true;
+        }
+        return false;
+}
+
+int CLanguageModel::GetColour(int character)
+{
+  std::string colour=m_Alphabet->GetColour(character);
+  if (colour!="") {
+    return atoi(colour.c_str());
+  } else {
+    return 0;
+  }
+}