/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * 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,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


#ifndef _TEXTDOC_HXX
#define _TEXTDOC_HXX

#include <svl/svarray.hxx>
#include <svtools/textdata.hxx>
#include <svtools/txtattr.hxx>

#include <tools/debug.hxx>
#include <tools/string.hxx>
#include <tools/list.hxx>

typedef TextCharAttrib* TextCharAttribPtr;
SV_DECL_PTRARR_DEL( TextCharAttribs, TextCharAttribPtr, 0, 4 )

class TextCharAttribList : private TextCharAttribs
{
private:
	sal_Bool			mbHasEmptyAttribs;

					TextCharAttribList( const TextCharAttribList& ) : TextCharAttribs() {}

public:
					TextCharAttribList();
					~TextCharAttribList();

	void			Clear( sal_Bool bDestroyAttribs );
	sal_uInt16			Count()	const				{ return TextCharAttribs::Count(); }

	TextCharAttrib*	GetAttrib( sal_uInt16 n ) const	{ return TextCharAttribs::GetObject( n ); }
	void			RemoveAttrib( sal_uInt16 n )	{ TextCharAttribs::Remove( n, 1 ); }

	void			InsertAttrib( TextCharAttrib* pAttrib );

	void			DeleteEmptyAttribs();
	void			ResortAttribs();

	sal_Bool			HasEmptyAttribs() const	{ return mbHasEmptyAttribs; }
	sal_Bool&			HasEmptyAttribs() 		{ return mbHasEmptyAttribs; }

	TextCharAttrib*	FindAttrib( sal_uInt16 nWhich, sal_uInt16 nPos );
	TextCharAttrib*	FindNextAttrib( sal_uInt16 nWhich, sal_uInt16 nFromPos, sal_uInt16 nMaxPos = 0xFFFF ) const;
	TextCharAttrib*	FindEmptyAttrib( sal_uInt16 nWhich, sal_uInt16 nPos );
	sal_Bool 			HasAttrib( sal_uInt16 nWhich ) const;
	sal_Bool			HasBoundingAttrib( sal_uInt16 nBound );

#ifdef  DBG_UTIL
	sal_Bool 			DbgCheckAttribs();
#endif
};


class TextNode
{
private:
	String				maText;
	TextCharAttribList	maCharAttribs;

						TextNode( const TextNode& ) {;}
protected:
	void				ExpandAttribs( sal_uInt16 nIndex, sal_uInt16 nNewChars );
	void				CollapsAttribs( sal_uInt16 nIndex, sal_uInt16 nDelChars );

public:
						TextNode( const String& rText );


	const String&				GetText() const 		{ return maText; }

	const TextCharAttribList&	GetCharAttribs() const	{ return maCharAttribs; }
	TextCharAttribList&			GetCharAttribs() 		{ return maCharAttribs; }

	void				InsertText( sal_uInt16 nPos, const String& rText );
	void				InsertText( sal_uInt16 nPos, sal_Unicode c );
	void 				RemoveText( sal_uInt16 nPos, sal_uInt16 nChars );

	TextNode*			Split( sal_uInt16 nPos, sal_Bool bKeepEndigAttribs );
	void				Append( const TextNode& rNode );
};

class TextDoc
{
private:
	ToolsList<TextNode*> maTextNodes;
	sal_uInt16				mnLeftMargin;

protected:
	void				DestroyTextNodes();

public:
						TextDoc();
						~TextDoc();

	void				Clear();

	ToolsList<TextNode*>&		GetNodes() 				{ return maTextNodes; }
	const ToolsList<TextNode*>&	GetNodes() const 		{ return maTextNodes; }

	TextPaM				RemoveChars( const TextPaM& rPaM, sal_uInt16 nChars );
	TextPaM				InsertText( const TextPaM& rPaM, sal_Unicode c );
	TextPaM				InsertText( const TextPaM& rPaM, const String& rStr );

	TextPaM				InsertParaBreak( const TextPaM& rPaM, sal_Bool bKeepEndingAttribs );
	TextPaM				ConnectParagraphs( TextNode* pLeft, TextNode* pRight );

	sal_uLong				GetTextLen( const sal_Unicode* pSep, const TextSelection* pSel = NULL ) const;
	String				GetText( const sal_Unicode* pSep ) const;
	String				GetText( sal_uLong nPara ) const;

	void				SetLeftMargin( sal_uInt16 n )	{ mnLeftMargin = n; }
	sal_uInt16				GetLeftMargin() const		{ return mnLeftMargin; }

//	sal_Bool				RemoveAttribs( TextNode* pNode, sal_uInt16 nStart, sal_uInt16 nEnd ), sal_uInt16 nWhich = 0 );
//	sal_Bool				RemoveAttribs( TextNode* pNode, sal_uInt16 nStart, sal_uInt16 nEnd, TextCharAttrib*& rpStarting, TextCharAttrib*& rpEnding, sal_uInt16 nWhich = 0 );
//	void				InsertAttrib( const EditCharAttrib* pAttr );
//	void				InsertAttribInSelection( const EditCharAttrib* pAttr );
//	void				FindAttribs( TextNode* pNode, sal_uInt16 nStartPos, sal_uInt16 nEndPos, SfxItemSet& rCurSet );

	sal_Bool				IsValidPaM( const TextPaM& rPaM );
};

#endif // _TEXTDOC_HXX