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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _FILTER_CONTAINER_HXX_
#define _FILTER_CONTAINER_HXX_
#include <sal/types.h>
#include <rtl/ustring.hxx>
#include <vector>
//------------------------------------------------------
// helper class, only useable by OFilterContainer
//------------------------------------------------------
class CFilterContainer
{
public:
// defines a filter entry which is made of a name and a filter value
// e.g. 'Text *.txt'
typedef std::pair< rtl::OUString, rtl::OUString > FILTER_ENTRY_T;
public:
explicit CFilterContainer( sal_Int32 initSize = 0 );
// add a new filter
// returns true if the filter was successfully added
// returns false if duplicates are not allowed and
// the filter is already in the container
sal_Bool SAL_CALL addFilter(
const ::rtl::OUString& aName,
const ::rtl::OUString& aFilter,
sal_Bool bAllowDuplicates = sal_False );
// delete the specified filter returns true on
// success and false if the filter was not found
sal_Bool SAL_CALL delFilter( const ::rtl::OUString& aName );
// the number of filter already added
sal_Int32 SAL_CALL numFilter( );
// clear all entries
void SAL_CALL empty( );
// retrieve a filter from the container both methods
// return true on success and false if the specified
// filter was not found
sal_Bool SAL_CALL getFilter( const ::rtl::OUString& aName, ::rtl::OUString& theFilter ) const;
sal_Bool SAL_CALL getFilter( sal_Int32 aIndex, ::rtl::OUString& theFilter ) const;
// returns the position of the specified filter or -1
// if the filter was not found
sal_Int32 SAL_CALL getFilterPos( const ::rtl::OUString& aName ) const;
// starts enumerating the filter in the container
void SAL_CALL beginEnumFilter( );
// returns true if another filter has been retrieved
sal_Bool SAL_CALL getNextFilter( FILTER_ENTRY_T& nextFilterEntry );
// cache current filter
void SAL_CALL setCurrentFilter( const ::rtl::OUString& aName );
// returns cached current filter
::rtl::OUString SAL_CALL getCurrentFilter() const;
protected:
typedef std::vector< FILTER_ENTRY_T > FILTER_VECTOR_T;
private:
// prevent copy and assignment
CFilterContainer( const CFilterContainer& );
CFilterContainer& SAL_CALL operator=( const CFilterContainer& );
sal_Int32 SAL_CALL getFilterTagPos( const ::rtl::OUString& aName ) const;
private:
FILTER_VECTOR_T m_vFilters;
FILTER_VECTOR_T::const_iterator m_iter;
sal_Bool m_bIterInitialized;
::rtl::OUString m_sCurrentFilter;
};
//----------------------------------------------------------------
// a helper function to create a filter buffer in the format
// the Win32 API requires, e.g. "Text\0*.txt\0Doc\0*.doc;*xls\0\0"
//----------------------------------------------------------------
rtl::OUString SAL_CALL makeWinFilterBuffer( CFilterContainer& aFilterContainer );
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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