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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 _COMPHELPER_PROPERTY_HXX_
#define _COMPHELPER_PROPERTY_HXX_
#include <cppuhelper/proptypehlp.hxx>
#include <comphelper/extract.hxx>
#include <com/sun/star/beans/Property.hpp>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <functional>
#include "comphelper/comphelperdllapi.h"
#include "cppu/unotype.hxx"
//=========================================================================
//= property helper classes
//=========================================================================
//... namespace comphelper .......................................................
namespace comphelper
{
//.........................................................................
namespace starbeans = ::com::sun::star::beans;
namespace staruno = ::com::sun::star::uno;
/** compare two properties by name
*/
//--------------------------------------------------------------------------
// comparing two property instances
struct PropertyCompareByName : public ::std::binary_function< ::com::sun::star::beans::Property, ::com::sun::star::beans::Property, bool >
{
bool operator() (const ::com::sun::star::beans::Property& x, const ::com::sun::star::beans::Property& y) const
{
return x.Name.compareTo(y.Name) < 0;// ? true : false;
}
};
//--------------------------------------------------------------------------
/** compare two properties by name
*/
struct PropertyStringEqualFunctor : ::std::binary_function< ::com::sun::star::beans::Property, ::rtl::OUString, bool >
{
// ................................................................
inline bool operator()( const ::com::sun::star::beans::Property& lhs, const ::rtl::OUString& rhs ) const
{
return lhs.Name.compareTo(rhs) == 0;
}
// ................................................................
inline bool operator()( const ::rtl::OUString& lhs, const ::com::sun::star::beans::Property& rhs ) const
{
return lhs.compareTo(rhs.Name) == 0;
}
};
//--------------------------------------------------------------------------
// comparing two property instances
struct PropertyEqualByName : public ::std::binary_function< ::com::sun::star::beans::Property, ::com::sun::star::beans::Property, bool >
{
bool operator() (const ::com::sun::star::beans::Property& x, const ::com::sun::star::beans::Property& y) const
{
return x.Name.compareTo(y.Name) == 0;
}
};
//------------------------------------------------------------------
/// remove the property with the given name from the given sequence
COMPHELPER_DLLPUBLIC void RemoveProperty(staruno::Sequence<starbeans::Property>& seqProps, const ::rtl::OUString& _rPropName);
//------------------------------------------------------------------
/** within the given property sequence, modify attributes of a special property
@param _rProps the sequence of properties to search in
@param _sPropName the name of the property which's attributes should be modified
@param _nAddAttrib the attributes which should be added
@param _nRemoveAttrib the attributes which should be removed
*/
COMPHELPER_DLLPUBLIC void ModifyPropertyAttributes(staruno::Sequence<starbeans::Property>& _rProps, const ::rtl::OUString& _sPropName, sal_Int16 _nAddAttrib, sal_Int16 _nRemoveAttrib);
//------------------------------------------------------------------
/** check if the given set has the given property.
*/
COMPHELPER_DLLPUBLIC sal_Bool hasProperty(const rtl::OUString& _rName, const staruno::Reference<starbeans::XPropertySet>& _rxSet);
//------------------------------------------------------------------
/** copy properties between property sets, in compliance with the property
attributes of the target object
*/
COMPHELPER_DLLPUBLIC void copyProperties(const staruno::Reference<starbeans::XPropertySet>& _rxSource,
const staruno::Reference<starbeans::XPropertySet>& _rxDest);
//==================================================================
//= property conversion helpers
//==================================================================
/** helper for implementing ::cppu::OPropertySetHelper::convertFastPropertyValue
@param _rConvertedValue the conversion result (if successfull)
@param _rOldValue the old value of the property, calculated from _rCurrentValue
@param _rValueToSet the new value which is about to be set
@param _rCurrentValue the current value of the property
@return sal_True, if the value could be converted and has changed
sal_False, if the value could be converted and has not changed
@exception InvalidArgumentException thrown if the value could not be converted to the requested type (which is the template argument)
*/
template <typename T>
sal_Bool tryPropertyValue(staruno::Any& /*out*/_rConvertedValue, staruno::Any& /*out*/_rOldValue, const staruno::Any& _rValueToSet, const T& _rCurrentValue)
{
sal_Bool bModified(sal_False);
T aNewValue = T();
::cppu::convertPropertyValue(aNewValue, _rValueToSet);
if (aNewValue != _rCurrentValue)
{
_rConvertedValue <<= aNewValue;
_rOldValue <<= _rCurrentValue;
bModified = sal_True;
}
return bModified;
}
/** helper for implementing ::cppu::OPropertySetHelper::convertFastPropertyValue for enum values
@param _rConvertedValue the conversion result (if successfull)
@param _rOldValue the old value of the property, calculated from _rCurrentValue
@param _rValueToSet the new value which is about to be set
@param _rCurrentValue the current value of the property
@return sal_True, if the value could be converted and has changed
sal_False, if the value could be converted and has not changed
@exception InvalidArgumentException thrown if the value could not be converted to the requested type (which is the template argument)
*/
template <class ENUMTYPE>
sal_Bool tryPropertyValueEnum(staruno::Any& /*out*/_rConvertedValue, staruno::Any& /*out*/_rOldValue, const staruno::Any& _rValueToSet, const ENUMTYPE& _rCurrentValue)
{
if (cppu::getTypeFavourUnsigned(&_rCurrentValue).getTypeClass()
!= staruno::TypeClass_ENUM)
return tryPropertyValue(_rConvertedValue, _rOldValue, _rValueToSet, _rCurrentValue);
sal_Bool bModified(sal_False);
ENUMTYPE aNewValue;
::cppu::any2enum(aNewValue, _rValueToSet);
// will throw an exception if not convertible
if (aNewValue != _rCurrentValue)
{
_rConvertedValue <<= aNewValue;
_rOldValue <<= _rCurrentValue;
bModified = sal_True;
}
return bModified;
}
/** helper for implementing ::cppu::OPropertySetHelper::convertFastPropertyValue for boolean properties
@param _rConvertedValue the conversion result (if successfull)
@param _rOldValue the old value of the property, calculated from _rCurrentValue
@param _rValueToSet the new value which is about to be set
@param _rCurrentValue the current value of the property
@return sal_True, if the value could be converted and has changed
sal_False, if the value could be converted and has not changed
@exception InvalidArgumentException thrown if the value could not be converted to a boolean type
*/
inline sal_Bool tryPropertyValue(staruno::Any& /*out*/_rConvertedValue, staruno::Any& /*out*/_rOldValue, const staruno::Any& _rValueToSet, sal_Bool _bCurrentValue)
{
sal_Bool bModified(sal_False);
sal_Bool bNewValue(sal_False);
::cppu::convertPropertyValue(bNewValue, _rValueToSet);
if (bNewValue != _bCurrentValue)
{
_rConvertedValue.setValue(&bNewValue, ::getBooleanCppuType());
_rOldValue.setValue(&_bCurrentValue, ::getBooleanCppuType());
bModified = sal_True;
}
return bModified;
}
/** helper for implementing ::cppu::OPropertySetHelper::convertFastPropertyValue
@param _rConvertedValue the conversion result (if successfull)
@param _rOldValue the old value of the property, calculated from _rCurrentValue
@param _rValueToSet the new value which is about to be set
@param _rCurrentValue the current value of the property
@param _rExpectedType the type which the property should have (if not void)
@return sal_True, if the value could be converted and has changed
sal_False, if the value could be converted and has not changed
@exception InvalidArgumentException thrown if the value could not be converted to the requested type (which is the template argument)
*/
COMPHELPER_DLLPUBLIC sal_Bool tryPropertyValue(staruno::Any& _rConvertedValue, staruno::Any& _rOldValue, const staruno::Any& _rValueToSet, const staruno::Any& _rCurrentValue, const staruno::Type& _rExpectedType);
//.........................................................................
}
//... namespace comphelper .......................................................
#endif // _COMPHELPER_PROPERTY_HXX_
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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