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 * 
 * Licensed to the Apache Software Foundation (ASF) under one
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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
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 * 
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#ifndef _SAL_I18N_INPUTCONTEXT_HXX
#define _SAL_I18N_INPUTCONTEXT_HXX

#include <i18npool/lang.h>
#include "i18n_cb.hxx"

class SalI18N_InputContext
{

private:

	Bool    mbUseable; // system supports current locale ?  
	Bool    mbMultiLingual; // system supports iiimp ?  
	XIC		maContext;

	XIMStyle mnSupportedStatusStyle;
	XIMStyle mnSupportedPreeditStyle;
	XIMStyle mnStatusStyle;
	XIMStyle mnPreeditStyle;

	preedit_data_t maClientData;
	XIMCallback maPreeditStartCallback;
	XIMCallback maPreeditDoneCallback;
	XIMCallback maPreeditDrawCallback;
	XIMCallback maPreeditCaretCallback;
	XIMCallback maCommitStringCallback;
    XIMCallback maSwitchIMCallback;
	XIMCallback maDestroyCallback;

	XVaNestedList mpAttributes;
	XVaNestedList mpStatusAttributes;
	XVaNestedList mpPreeditAttributes;
		
	Bool 		 SupportInputMethodStyle( XIMStyles *pIMStyles );
	unsigned int GetWeightingOfIMStyle(   XIMStyle n_style ) const ;
	Bool 		 IsSupportedIMStyle(      XIMStyle n_style ) const ;

public:

	Bool UseContext() 		{ return mbUseable; }
	Bool IsMultiLingual() 	{ return mbMultiLingual; }
	Bool IsPreeditMode()	{ return maClientData.eState == ePreeditStatusActive; }
	XIC  GetContext() 		{ return maContext; }

	void ExtendEventMask(  XLIB_Window aFocusWindow );
	void SetICFocus( SalFrame* pFocusFrame );
	void UnsetICFocus( SalFrame* pFrame );
    void HandleDestroyIM();

	int  HandleKeyEvent( XKeyEvent *pEvent, SalFrame *pFrame ); // unused
	void EndExtTextInput( sal_uInt16 nFlags );						// unused
	int  CommitStringCallback( sal_Unicode* pText, sal_Size nLength );
    int  CommitKeyEvent( sal_Unicode* pText, sal_Size nLength );
    int  UpdateSpotLocation();

	void Map( SalFrame *pFrame );
	void Unmap( SalFrame* pFrame );

    void SetPreeditState(Bool aPreeditState);
    void SetLanguage(LanguageType aInputLanguage);

	SalI18N_InputContext( SalFrame *aFrame );
	~SalI18N_InputContext();

private:

	SalI18N_InputContext(); // do not use this

};

#endif // _SAL_I18N_INPUTCONTEXT_HXX