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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#ifndef INCLUDED_FPICKER_SOURCE_WIN32_FILEPICKER_FILTERCONTAINER_HXX
#define INCLUDED_FPICKER_SOURCE_WIN32_FILEPICKER_FILTERCONTAINER_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< OUString, 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
bool SAL_CALL addFilter(
const OUString& aName,
const OUString& aFilter,
bool bAllowDuplicates = false );
// delete the specified filter returns true on
// success and false if the filter was not found
bool SAL_CALL delFilter( const 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
bool SAL_CALL getFilter( const OUString& aName, OUString& theFilter ) const;
bool SAL_CALL getFilter( sal_Int32 aIndex, OUString& theFilter ) const;
// returns the position of the specified filter or -1
// if the filter was not found
sal_Int32 SAL_CALL getFilterPos( const OUString& aName ) const;
// starts enumerating the filter in the container
void SAL_CALL beginEnumFilter( );
// returns true if another filter has been retrieved
bool SAL_CALL getNextFilter( FILTER_ENTRY_T& nextFilterEntry );
// cache current filter
void SAL_CALL setCurrentFilter( const OUString& aName );
// returns cached current filter
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 OUString& aName ) const;
private:
FILTER_VECTOR_T m_vFilters;
FILTER_VECTOR_T::const_iterator m_iter;
bool m_bIterInitialized;
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"
OUString SAL_CALL makeWinFilterBuffer( CFilterContainer& aFilterContainer );
#endif
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