/* -*- 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.h>
#include <com/sun/star/uno/Any.hxx>
namespace cppu
{
/**
* Sets enum from int32 value. This function does NOT check for valid enum values!
*
* @param nEnum int32 enum value
* @param rType enum type
* @return enum or empty any.
*/
inline css::uno::Any 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.
*
* @param[out] rnEnum int32 enum value
* @param rAny enum or int
* @retval true if enum or int value was set
* @retval false otherwise
*/
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
*
* @param[out] eRet the enum value as int. If there is no enum of the given type
* a css::lang::IllegalArgumentException is thrown
* @param rAny enum or int
* @throws css::lang::IllegalArgumentException
*/
template <
typename E>
inline void any2enum(E& eRet,
const css::uno::Any& rAny)
{
// 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
*
* @throws css::lang::IllegalArgumentException
*/
inline bool any2bool(
const css::uno::Any& rAny)
{
bool b;
if (rAny >>= b)
{
return b;
}
else
{
sal_Int32 nValue = 0;
if (!(rAny >>= nValue))
throw css::lang::IllegalArgumentException();
return nValue != 0;
}
}
}
#endif
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