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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
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
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#ifndef _TXATRITR_HXX
#define _TXATRITR_HXX

#include <tools/solar.h>
#include <sal/types.h>
#include <svl/svarray.hxx>
#include <editeng/langitem.hxx>
#include <hintids.hxx>

class String;
class SwTxtNode;
class SwTxtAttr;
class SfxPoolItem;


class SwScriptIterator
{
	const String& rText;
	xub_StrLen nChgPos;
	sal_uInt16 nCurScript;
    sal_Bool bForward;

public:
    SwScriptIterator( const String& rStr, xub_StrLen nStart = 0,
                      sal_Bool bFrwrd = sal_True );

	sal_Bool Next();

	sal_uInt16 GetCurrScript() const 		{ return nCurScript; }
	xub_StrLen GetScriptChgPos() const		{ return nChgPos; }
	const String& GetText() const			{ return rText;	}
};


class SwTxtAttrIterator
{
	SwScriptIterator aSIter;
	SvPtrarr aStack;
	const SwTxtNode& rTxtNd;
	const SfxPoolItem *pParaItem, *pCurItem;
	xub_StrLen nChgPos;
	sal_uInt16 nAttrPos, nWhichId;
    sal_Bool bIsUseGetWhichOfScript;

	void AddToStack( const SwTxtAttr& rAttr );
	void SearchNextChg();

public:
	SwTxtAttrIterator( const SwTxtNode& rTxtNd, sal_uInt16 nWhichId,
                        xub_StrLen nStart = 0, sal_Bool bUseGetWhichOfScript = sal_True );

	sal_Bool Next();

	const SfxPoolItem& GetAttr() const	{ return *pCurItem; }
	xub_StrLen GetChgPos() const		{ return nChgPos; }
};


class SwLanguageIterator : public SwTxtAttrIterator
{
public:
    SwLanguageIterator( const SwTxtNode& rTxtNode, xub_StrLen nStart = 0,
                        sal_uInt16 nWhich = RES_CHRATR_LANGUAGE,
                        sal_Bool bUseGetWhichOfScript = sal_True )
        : SwTxtAttrIterator( rTxtNode, nWhich, nStart, bUseGetWhichOfScript )
	{}

	sal_uInt16 GetLanguage() const
		{ return ((SvxLanguageItem&)GetAttr()).GetValue(); }
};


#endif