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#pragma once
#include "stdafx.h"
#include <string>
#include <vector>
class TextToSpeech
{
public:
enum State
{
State_Loaded,
State_Unloaded,
};
TextToSpeech();
virtual ~TextToSpeech();
//--------------------------------------------------------------------------
// Description : is the api available for use
// Return : true - it is available
// false - it is not available
//--------------------------------------------------------------------------
virtual bool isAvailable() = 0;
//--------------------------------------------------------------------------
// Description : load/unload/reload the speech api
// Return : true - the action succeeded
// false - the action failed
//--------------------------------------------------------------------------
virtual bool load() = 0;
virtual bool unload() = 0;
//--------------------------------------------------------------------------
// Description : check if the speech api is loaded
// Return : true - the speech_api is loaded
// false - its not loaded
//--------------------------------------------------------------------------
virtual bool isLoaded() const = 0;
//--------------------------------------------------------------------------
// Description : speak a sentence
// Parameters : sentence - the sentence to speak
// Returns : true - speak successful
// false - speak failed
//--------------------------------------------------------------------------
virtual bool say(const std::wstring &sentence) = 0;
//--------------------------------------------------------------------------
// Description : set the voice settings
// Parameters : range from 0 to 100
//--------------------------------------------------------------------------
virtual bool setVolume(int volume) = 0;
virtual bool setPitch(int pitch) = 0;
virtual bool setRate(int rate) = 0;
//--------------------------------------------------------------------------
// Description : set the voice
//--------------------------------------------------------------------------
virtual bool setVoice(const std::wstring &voice) = 0;
//--------------------------------------------------------------------------
// Description : get the available voices
//--------------------------------------------------------------------------
virtual std::vector<std::wstring> getVoices() const = 0;
//--------------------------------------------------------------------------
// Description : open the lexicon dialog for this engine
// Parameters : window - handle to the parent window
// Return : true - dialog completely successfully
// false - dialog failed
//--------------------------------------------------------------------------
virtual bool lexiconDialog(HWND window) = 0;
};
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