Files
libreoffice/include/comphelper/extract.hxx
Stephan Bergmann 6cf436799c More comphelper/extract.hxx clean up
Change-Id: I36c1ebea58bcd32b65a48d3447c106aeecdac230
2016-05-31 08:47:05 +02:00

118 lines
3.3 KiB
C++

/* -*- 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_COMPHELPER_EXTRACT_HXX
#define INCLUDED_COMPHELPER_EXTRACT_HXX
#include <sal/config.h>
#include <cassert>
#include <com/sun/star/lang/IllegalArgumentException.hpp>
#include <com/sun/star/uno/TypeClass.hpp>
#include <com/sun/star/uno/Type.hxx>
#include <com/sun/star/uno/Any.hxx>
#include <cppu/unotype.hxx>
namespace cppu
{
/**
* Sets enum from int32 value. This function does NOT check for valid enum values!
*<BR>
* @param nEnum int32 enum value
* @param rType enum type
* @return enum or empty any.
*/
inline css::uno::Any SAL_CALL int2enum(
sal_Int32 nEnum, const css::uno::Type & rType )
{
assert(rType.getTypeClass() == css::uno::TypeClass_ENUM);
return css::uno::Any( &nEnum, rType );
}
/**
* Sets int32 from enum or int in any.
*<BR>
* @param rnEnum [out] int32 enum value
* @param rAny enum or int
* @param sal_True if enum or int value was set else sal_False.
*/
inline bool enum2int( sal_Int32 & rnEnum, const css::uno::Any & rAny )
{
if (rAny.getValueTypeClass() == css::uno::TypeClass_ENUM)
{
rnEnum = * static_cast< const sal_Int32 * >( rAny.getValue() );
return true;
}
return rAny >>= rnEnum;
}
/**
* Sets int32 from enum or int in any with additional typecheck
* <BR>
* @param rAny enum or int
* @param eRet the enum value as int. If there is not enum of the given type or
* a css::lang::IllegalArgumentException is thrown
*/
template< typename E >
inline void any2enum( E & eRet, const css::uno::Any & rAny )
throw( css::lang::IllegalArgumentException )
{
// check for typesafe enum
if (! (rAny >>= eRet))
{
// if not enum, maybe integer?
sal_Int32 nValue = 0;
if (! (rAny >>= nValue))
throw css::lang::IllegalArgumentException();
eRet = static_cast<E>(nValue);
}
}
/**
* extracts a boolean either as a bool or an integer from
* an any. If there is no bool or integer inside the any
* a css::lang::IllegalArgumentException is thrown
*
*/
inline bool any2bool( const css::uno::Any & rAny )
throw( css::lang::IllegalArgumentException )
{
bool b;
if (rAny >>= b)
{
return b;
}
else
{
sal_Int32 nValue = 0;
if (! (rAny >>= nValue))
throw css::lang::IllegalArgumentException();
return nValue != 0;
}
}
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */