/* AbiWord
 * Copyright (C) 2000 AbiSource, Inc.
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  
 * 02111-1307, USA.
 */
#ifndef FIELD_H
#define FIELD_H

#include "ut_types.h"
#include "ut_xml.h"
#include "pf_Frag_Object.h"
#include "pf_Frag_Text.h"
#include "pt_Types.h"

class fl_BlockLayout;
class pf_Frag_Object;

/*!
 \note This class will eventually have subclasses to implement the different
 types of fields.
*/

class ABI_EXPORT fd_Field
{
 public:
    // TBD: convention for naming 
    typedef enum _FieldType 
	{
		FD_Test,
		FD_MartinTest,
		FD_Time, 
		FD_PageNumber, 
		FD_PageCount,
		FD_ListLabel,
		FD_FileName,
		FD_Date,

		FD_Date_MMDDYY,
		FD_Date_DDMMYY,
		FD_Date_MDY,
		FD_Date_MthDY,
		FD_Date_DFL,
		FD_Date_NTDFL,
		FD_Date_Wkday,
		FD_Date_DOY,

		FD_Time_MilTime,
		FD_Time_AMPM,
		FD_Time_Zone,
		FD_Time_Epoch,

		FD_Table_sum_rows,
		FD_Table_sum_cols,

		FD_DateTime_Custom,

		FD_Doc_WordCount,
		FD_Doc_CharCount,
		FD_Doc_LineCount,
		FD_Doc_ParaCount,
		FD_Doc_NbspCount,

		FD_App_Version,
		FD_App_ID,
		FD_App_Options,
		FD_App_Target,
		FD_App_CompileTime,
		FD_App_CompileDate,
		
		FD_Endnote_Ref,
		FD_Endnote_Anchor,

		FD_Footnote_Ref,
		FD_Footnote_Anchor,
		
		FD_PageReference,
		FD_MailMerge,

		FD_Meta_Title,
		FD_Meta_Creator,
		FD_Meta_Subject,
		FD_Meta_Publisher,
		FD_Meta_Date,
		FD_Meta_Type,
		FD_Meta_Language,
		FD_Meta_Rights,
		FD_Meta_Keywords,
		FD_Meta_Contributor,
		FD_Meta_Coverage,
		FD_Meta_Description,

		__last_field_dont_use__
	} FieldType;
    fd_Field(pf_Frag_Object& fO, pt_PieceTable * pt, FieldType fieldType, const XML_Char *pParam);
    virtual							~fd_Field(void);
    bool							update(void);
    void							setBlock(fl_BlockLayout * pBlock);
    fl_BlockLayout *				getBlock( void);
	FieldType						getFieldType(void) const;
	XML_Char *						getValue(void) const;
	void							setValue(const XML_Char * szValue);
	const XML_Char * 				getParameter(void) const {return static_cast<const XML_Char *>(m_pParameter);};
    // probably need different types of update
    // which are overridden in the appropriate subclass
    // eg positionChangeUpdate
    //    referenceChangeUpdate
 protected:
    bool							_deleteSpan(void);
    void							_throwChangeRec(PT_DocPosition docPos);
    fl_BlockLayout * m_pBlock;
    // will need some more helper functions in here eg. to test 
    // whether text has changed to avoid unnecessary updates
 private:
    pf_Frag_Object& m_fragObject;
    pt_PieceTable *	m_pPieceTable;
    UT_uint32 m_updateCount;
    FieldType m_iFieldType;
	XML_Char * m_szValue;
	XML_Char * m_pParameter;
};

#endif




