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DasherWidgetInterface.h

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// DasherWidgetInterface.h
//
//
// Copyright (c) 2002 Iain Murray
//

#ifndef __DasherWidgetInterface_h__
#define __DasherWidgetInterface_h__


#include "DasherTypes.h"
#include <string>

namespace Dasher {class CDasherWidgetInterface;}
class Dasher::CDasherWidgetInterface
{
public:
        //
        virtual void Start()=0;
        
        // Times in milliseconds are required so Dasher runs at the correct speed.
        //
        virtual void TapOn(int MouseX, int MouseY, unsigned long Time)=0;
        
        virtual void PauseAt(int MouseX, int MouseY)=0;
        
        //
        virtual void Unpause(unsigned long Time)=0;

        virtual void Redraw()=0;
        
        // The widgets need to tell the engine when they have been affected
        // by external interaction
        
        virtual void ChangeScreen()=0;

        virtual void ChangeEdit()=0;
        
        // These are needed so widgets know how to render the alphabet.
        // All strings are encoded in UTF-8.

        virtual unsigned int GetNumberSymbols()=0;
        
        //
        virtual const std::string& GetDisplayText(Dasher::symbol Symbol)=0;

        //
        virtual const std::string& GetEditText(Dasher::symbol Symbol)=0;

        //
        virtual Opts::ScreenOrientations GetAlphabetOrientation()=0;

        virtual Opts::AlphabetTypes GetAlphabetType()=0;

        virtual const std::string& GetTrainFile()=0; // Returns a fully-qualified path to file:
                                                     // UserLocation + TrainFile
};

#endif /* #ifndef __DasherWidgetInterface_h__ */

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