150 lines
4.6 KiB
C++
150 lines
4.6 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: composertools.hxx,v $
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*
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* $Revision: 1.4 $
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*
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* last change: $Author: obo $ $Date: 2006-07-10 15:12:43 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#ifndef DBACCESS_SOURCE_CORE_INC_COMPOSERTOOLS_HXX
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#define DBACCESS_SOURCE_CORE_INC_COMPOSERTOOLS_HXX
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/** === begin UNO includes === **/
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/** === end UNO includes === **/
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#ifndef _RTL_USTRBUF_HXX_
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#include <rtl/ustrbuf.hxx>
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#endif
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#include <functional>
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//........................................................................
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namespace dbaccess
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{
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//........................................................................
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//====================================================================
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//= TokenComposer
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//====================================================================
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struct TokenComposer : public ::std::unary_function< ::rtl::OUString, void >
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{
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private:
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#ifdef DBG_UTIL
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bool m_bUsed;
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#endif
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protected:
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::rtl::OUStringBuffer m_aBuffer;
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public:
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::rtl::OUString getComposedAndClear()
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{
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#ifdef DBG_UTIL
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m_bUsed = true;
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#endif
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return m_aBuffer.makeStringAndClear();
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}
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void clear()
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{
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#ifdef DBG_UTIL
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m_bUsed = false;
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#endif
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m_aBuffer.makeStringAndClear();
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}
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public:
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TokenComposer()
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#ifdef DBG_UTIL
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:m_bUsed( false )
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#endif
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{
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}
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virtual ~TokenComposer()
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{
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}
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void operator() (const ::rtl::OUString& lhs)
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{
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append(lhs);
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}
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void append( const ::rtl::OUString& lhs )
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{
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#ifdef DBG_UTIL
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OSL_ENSURE( !m_bUsed, "FilterCreator::append: already used up!" );
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#endif
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if ( lhs.getLength() )
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{
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if ( m_aBuffer.getLength() )
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appendNonEmptyToNonEmpty( lhs );
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else
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m_aBuffer.append( lhs );
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}
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}
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/// append the given part. Only to be called when both the part and our buffer so far are not empty
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virtual void appendNonEmptyToNonEmpty( const ::rtl::OUString& lhs ) = 0;
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};
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//====================================================================
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//= FilterCreator
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//====================================================================
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struct FilterCreator : public TokenComposer
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{
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virtual void appendNonEmptyToNonEmpty( const ::rtl::OUString& lhs )
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{
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m_aBuffer.insert( 0, (sal_Unicode)' ' );
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m_aBuffer.insert( 0, (sal_Unicode)'(' );
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m_aBuffer.appendAscii( " ) AND ( " );
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m_aBuffer.append( lhs );
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m_aBuffer.appendAscii( " )" );
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}
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};
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//====================================================================
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//= FilterCreator
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//====================================================================
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struct OrderCreator : public TokenComposer
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{
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virtual void appendNonEmptyToNonEmpty( const ::rtl::OUString& lhs )
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{
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m_aBuffer.appendAscii( ", " );
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m_aBuffer.append( lhs );
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}
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};
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//........................................................................
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} // namespace dbaccess
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//........................................................................
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#endif // DBACCESS_SOURCE_CORE_INC_COMPOSERTOOLS_HXX
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