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 * 
 * 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
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#ifndef DBAUI_CONNECTIONLINE_HXX
#define DBAUI_CONNECTIONLINE_HXX

#ifndef _SV_GEN_HXX
#include <tools/gen.hxx>
#endif
#ifndef _STRING_HXX
#include <tools/string.hxx>
#endif
#ifndef DBAUI_CONNECTIONLINEDATA_HXX
#include "ConnectionLineData.hxx"
#endif
#include <functional>

class OutputDevice;
namespace dbaui
{

	//==================================================================
	// ConnData		---------->*	ConnLineData
	//    ^1							^1
	//    |								|
	//	Conn		---------->*	ConnLine
	//==================================================================

	/*
		the class OConnectionLine represents the graphical line between the to two windows
	**/
	class OConnectionLineData;
	class OTableConnection;
	class OTableWindow;
	class OConnectionLine 
	{
		OTableConnection*		m_pTabConn;
		OConnectionLineDataRef	m_pData;

		Point					m_aSourceConnPos, 
								m_aDestConnPos;
		Point					m_aSourceDescrLinePos, 
								m_aDestDescrLinePos;
	public:
		OConnectionLine( OTableConnection* pConn, OConnectionLineDataRef pLineData );
		OConnectionLine( const OConnectionLine& rLine );
		virtual ~OConnectionLine();

		virtual OConnectionLine& operator=( const OConnectionLine& rLine );

		Rectangle			GetBoundingRect();
		sal_Bool				RecalcLine();
		void				Draw( OutputDevice* pOutDev );
		bool				CheckHit( const Point& rMousePos ) const;
		String				GetSourceFieldName() const { return m_pData->GetSourceFieldName(); }
		String				GetDestFieldName() const { return m_pData->GetDestFieldName(); }

		sal_Bool				IsValid() const;

		Rectangle			GetSourceTextPos() const;
		Rectangle			GetDestTextPos() const;

		OConnectionLineDataRef	GetData() const { return m_pData; }

		Point				getMidPoint() const;
	};
	/// unary_function Functor object for class OConnectionLine returntype is void
	/// draws a connectionline object on outputdevice
	struct TConnectionLineDrawFunctor : ::std::unary_function<OConnectionLine*,void> 
	{
		OutputDevice* pDevice;
		TConnectionLineDrawFunctor(OutputDevice* _pDevice)
		{
			pDevice = _pDevice;
		}
		inline void operator()(OConnectionLine* _pLine)
		{
			_pLine->Draw(pDevice);
		}
	};
	/// binary_function Functor object for class OConnectionLine returntype is bool
	/// checks if the point is on connectionline
	struct TConnectionLineCheckHitFunctor : ::std::binary_function<OConnectionLine*,Point,bool> 
	{
		inline bool operator()(const OConnectionLine* lhs,const Point& rhs)	const
		{
			return lhs->CheckHit(rhs);
		}
	};

}
#endif // DBAUI_CONNECTIONLINE_HXX