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diff --git a/inputmethods/dasher/DasherAppInterface.h b/inputmethods/dasher/DasherAppInterface.h
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+++ b/inputmethods/dasher/DasherAppInterface.h
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+// DasherAppInterface.h
+//
+/////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2002 Iain Murray
+//
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef __DasherAppInterface_h__
+#define __DasherAppInterface_h__
+
+#include "DasherScreen.h"
+#include "DashEdit.h"
+#include "AlphIO.h"
+#include <string>
+#include <vector>
+
+namespace Dasher {class CDasherAppInterface;}
+class Dasher::CDasherAppInterface
+{
+public:
+        // We may change the widgets Dasher uses at run time
+
+        //! Change the screen being used by the core to NewScreen
+        virtual void ChangeScreen(CDasherScreen* NewScreen)=0;
+
+        //! Change the editbox being used by the core to NewEdit
+        virtual void ChangeEdit(CDashEditbox* NewEdit)=0;
+        
+        // Training by string segments or file all training data must be in UTF-8.
+        //! Train the core on Trainstring
+        //
+        //! \param TrainString UTF-8 encoded string to train the core on
+        //! \param IsMore True if more text is to follow as part of the same
+        //! logical sequence, false otherwise (this allows the model to make
+        //! assumptions regarding whether the final character provided is in 
+        //! the middle of a word or not)
+        virtual void Train(std::string* TrainString, bool IsMore)=0;
+
+        //! Train the core on the file in Filename.
+        //
+        //! The file should contain UTF-8 encoded text
+        virtual void TrainFile(std::string Filename)=0;
+        
+        // App may want to display characters per minute or frames per second.
+
+        //! Tell the interface how many font sizes there are and what they are
+
+        virtual void GetFontSizes(std::vector<int> *FontSizes)=0;
+
+        //! Provides the number of characters per minute input. (Not implemented)
+        virtual double GetCurCPM()=0;
+        
+        //! Provides the framerate that Dasher is runnin at. (Not implemented)
+        virtual double GetCurFPS()=0;
+
+        // Customize alphabet
+        //! Get a vector containing a list of alphabet names available to Dasher
+        virtual void GetAlphabets(std::vector< std::string >* AlphabetList)=0;
+        
+        //! Return an AlphInfo object containing the alphabet with name AlphID
+        virtual const CAlphIO::AlphInfo& GetInfo(const std::string& AlphID)=0;
+
+        //! Save a new or modified AlphInfo object
+        virtual void SetInfo(const CAlphIO::AlphInfo& NewInfo)=0;
+
+        //! Delete the alphabet with name AlphID
+        virtual void DeleteAlphabet(const std::string& AlphID)=0;
+};
+
+
+#endif /* #ifndef __DasherAppInterface_h__ */