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;
+  }
+}