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#ifndef SW_ACMPLWRD_HXX
#define SW_ACMPLWRD_HXX

#include <deque>

#include <editeng/swafopt.hxx>
#include <editeng/LatinLookupTree.hxx>

class SwDoc;
class SwAutoCompleteWord_Impl;
class SwAutoCompleteClient;
class SwAutoCompleteString;

typedef std::deque<SwAutoCompleteString*> SwAutoCompleteStringPtrDeque;

class SwAutoCompleteWord
{
    friend class SwAutoCompleteClient;

    /// contains extended strings carrying source information
    editeng::SortedAutoCompleteStrings m_WordList;
    LookupTree* m_LookupTree;
    SwAutoCompleteStringPtrDeque aLRULst;

    SwAutoCompleteWord_Impl* pImpl;
    sal_uInt16 nMaxCount, nMinWrdLen;
    bool bLockWordLst;

    void DocumentDying(const SwDoc& rDoc);
public:
    SwAutoCompleteWord( sal_uInt16 nWords = 500, sal_uInt16 nMWrdLen = 10 );
    ~SwAutoCompleteWord();

    sal_Bool InsertWord( const String& rWord, SwDoc& rDoc );

    sal_Bool GetRange( const String& rWord, sal_uInt16& rStt, sal_uInt16& rEnd ) const;

    const String& operator[](size_t n) const
        { return m_WordList[n]->GetAutoCompleteString(); }

    bool IsLockWordLstLocked() const           { return bLockWordLst; }
    void SetLockWordLstLocked( bool bFlag ) { bLockWordLst = bFlag; }

    void SetMaxCount( sal_uInt16 n );

    sal_uInt16 GetMinWordLen() const                { return nMinWrdLen; }
    void SetMinWordLen( sal_uInt16 n );

    const editeng::SortedAutoCompleteStrings& GetWordList() const
        { return m_WordList; }

    void CheckChangedList(const editeng::SortedAutoCompleteStrings& rNewLst);

    // Resets the current position within the tree to its root node.
    void returnToRoot();

    // Advances to a given node within the AutoComplete tree.
    void gotoNode(OUString sNode);

    // Advances from the current position towards the node keyed with cKey.
    void advance(const sal_Unicode cKey);

    // Goes back one char within the tree, except if the current node is already the root node.
    void goBack();

    // Returns all words matching a given prefix aMatch. If bIgnoreCurrentPos is set, the current
    // position within the tree is ignored and replaced by aMatch.
    bool GetWordsMatching(String aMatch, std::vector<String>& aWords, sal_Bool bIgnoreCurrentPos) const;
};


#endif

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