/**********************************************************
 * Version $Id$
 *********************************************************/
/*******************************************************************************
    SearchInTable.cpp
    Copyright (C) Victor Olaya

    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., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301, USA
*******************************************************************************/

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//---------------------------------------------------------
#include "SearchInTable.h"


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//---------------------------------------------------------
CSelect_String::CSelect_String(void)
{
	CSG_Parameter	*pNode;

	//-----------------------------------------------------
	Set_Name		(_TL("Select by Attributes... (String Expression)"));

	Set_Author		(SG_T("V.Olaya (c) 2004, O.Conrad (c) 2011"));

	Set_Description	(_TW(
		"Searches for an character string expression in the attributes table and selects records where the expression is found."
	));

	//-----------------------------------------------------
	pNode	= Parameters.Add_Shapes(
		NULL	, "SHAPES"		, _TL("Shapes"),
		_TL(""),
		PARAMETER_INPUT
	);

	Parameters.Add_Table_Field(
		pNode	, "FIELD"		, _TL("Attribute"),
		_TL("attribute to be searched; if not set all attributes will be searched"),
		true
	);

	Parameters.Add_String(
		NULL	, "EXPRESSION"	, _TL("Expression"),
		_TL(""),
		SG_T("")
	);

	Parameters.Add_Value(
		NULL	, "CASE"		, _TL("Case Sensitive"),
		_TL(""),
		PARAMETER_TYPE_Bool, true
	);

	Parameters.Add_Choice(
		NULL	, "COMPARE"		, _TL("Select if..."),
		_TL(""),
		CSG_String::Format(SG_T("%s|%s|%s|"),
			_TL("attribute is identical with search expression"),
			_TL("attribute contains search expression"),
			_TL("attribute is contained in search expression")
		), 1
	);

	Parameters.Add_Choice(
		NULL	, "METHOD"		, _TL("Method"),
		_TL(""),
		CSG_String::Format(SG_T("%s|%s|%s|%s|"),
			_TL("new selection"),
			_TL("add to current selection"),
			_TL("select from current selection"),
			_TL("remove from current selection")
		), 0
	);
}


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//---------------------------------------------------------
bool CSelect_String::On_Execute(void)
{
	int			Method;
	CSG_Shapes	*pShapes;

	//-----------------------------------------------------
	pShapes			= Parameters("SHAPES")		->asShapes();
	m_Field			= Parameters("FIELD")		->asInt();
	m_Expression	= Parameters("EXPRESSION")	->asString();
	m_Case			= Parameters("CASE")		->asBool();
	m_Compare		= Parameters("COMPARE")		->asInt();
	Method			= Parameters("METHOD")		->asInt();

	//-----------------------------------------------------
	if( m_Case == false )
	{
		m_Expression.Make_Upper();
	}

	//-----------------------------------------------------
	for(int i=0; i<pShapes->Get_Count() && Set_Progress(i, pShapes->Get_Count()); i++)
	{
		CSG_Shape	*pShape	= pShapes->Get_Shape(i);

		switch( Method )
		{
		case 0:	// New selection
			if( ( pShape->is_Selected() && !Do_Select(pShape))
			||	(!pShape->is_Selected() &&  Do_Select(pShape)) )
			{
				pShapes->Select(i, true);
			}
			break;

		case 1:	// Add to current selection
			if(  !pShape->is_Selected() &&  Do_Select(pShape) )
			{
				pShapes->Select(i, true);
			}
			break;

		case 2:	// Select from current selection
			if(   pShape->is_Selected() && !Do_Select(pShape) )
			{
				pShapes->Select(i, true);
			}
			break;

		case 3:	// Remove from current selection
			if(   pShape->is_Selected() &&  Do_Select(pShape) )
			{
				pShapes->Select(i, true);
			}
			break;
		}
	}

	//-----------------------------------------------------
	Message_Add(CSG_String::Format(SG_T("%s: %d"), _TL("selected shapes"), pShapes->Get_Selection_Count()));

	DataObject_Update(pShapes);

	return( true );
}


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//---------------------------------------------------------
inline bool CSelect_String::Do_Compare(const SG_Char *Value)
{
	CSG_String	s(Value);

	if( m_Case == false )
	{
		s.Make_Upper();
	}

	switch( m_Compare )
	{
	case 0:	// identical
		return( m_Expression.Cmp(s) == 0 );

	case 1:	// contains
		return( s.Find(m_Expression) >= 0 );

	case 2:	// contained
		return( m_Expression.Find(s) >= 0 );
	}

	return( false );
}

//---------------------------------------------------------
inline bool CSelect_String::Do_Select(CSG_Shape *pShape)
{
	if( m_Field >= 0 && m_Field < pShape->Get_Table()->Get_Field_Count() )
	{
		return( Do_Compare(pShape->asString(m_Field)) );
	}

	for(int i=0; i<pShape->Get_Table()->Get_Field_Count(); i++)
	{
		if( Do_Compare(pShape->asString(i)) )
		{
			return( true );
		}
	}

	return( false );
}


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//---------------------------------------------------------
