//
// LocatorImpl.h
//
// $Id: //poco/Main/XML/include/SAX/LocatorImpl.h#5 $
//
// An implementation of the SAX Locator interface.
//
// Copyright (c) 2004, Guenter Obiltschnig/Applied Informatics.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
//
// 3. Redistributions in any form must be accompanied by information on
//    how to obtain complete source code for this software and any
//    accompanying software that uses this software.  The source code
//    must either be included in the distribution or be available for no
//    more than the cost of distribution plus a nominal fee, and must be
//    freely redistributable under reasonable conditions.  For an
//    executable file, complete source code means the source code for all
//    modules it contains.  It does not include source code for modules or
//    files that typically accompany the major components of the operating
//    system on which the executable file runs.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//


#ifndef SAX_LocatorImpl_INCLUDED
#define SAX_LocatorImpl_INCLUDED


#ifndef XML_XML_INCLUDED
#include "XML/XML.h"
#endif
#ifndef SAX_Locator_INCLUDED
#include "SAX/Locator.h"
#endif
#ifndef XMLString_INCLUDED
#include "XML/XMLString.h"
#endif


XML_BEGIN


class XML_API LocatorImpl: public Locator
	/// Provide an optional convenience implementation of Locator.
{
public:
	LocatorImpl();
		/// Zero-argument constructor.
		/// 
		/// This will not normally be useful, since the main purpose of this class is 
		/// to make a snapshot of an existing Locator.
		
	LocatorImpl(const Locator& loc);
		/// Copy constructor.
		/// 
		/// Create a persistent copy of the current state of a locator. When the original 
		/// locator changes, this copy will still keep the original values (and it can be 
		/// used outside the scope of DocumentHandler methods).

	~LocatorImpl();
		/// Destroys the Locator.
		
	LocatorImpl& operator = (const Locator& loc);
		/// Assignment operator.

	XMLString getPublicId() const;
		/// Return the saved public identifier.
		
	XMLString getSystemId() const;
		/// Return the saved system identifier.

	int getLineNumber() const;
		/// Return the saved line number (1-based).
		
	int getColumnNumber() const;
		/// Return the saved column number (1-based).
		
	void setPublicId(const XMLString& publicId);
		/// Set the public identifier for this locator.

	void setSystemId(const XMLString& systemId);
		/// Set the system identifier for this locator.

	void setLineNumber(int lineNumber);
		/// Set the line number for this locator (1-based).

	void setColumnNumber(int columnNumber);
		/// Set the column number for this locator (1-based).

private:
	XMLString _publicId;
	XMLString _systemId;
	int _lineNumber;
	int _columnNumber;
};


XML_END


#endif // SAX_LocatorImpl_INCLUDED