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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_COMPHELPER_PROPERTYCONTAINERHELPER_HXX
#define INCLUDED_COMPHELPER_PROPERTYCONTAINERHELPER_HXX
#include <com/sun/star/uno/Type.hxx>
#include <com/sun/star/beans/Property.hpp>
#include <vector>
#include <comphelper/comphelperdllapi.h>
namespace comphelper
{
// infos about one single property
struct COMPHELPER_DLLPUBLIC PropertyDescription
{
// the possibilities where a property holding object may be located
enum class LocationType
{
DerivedClassRealType, // within the derived class, it's a "real" (non-Any) type
DerivedClassAnyType, // within the derived class, it's a com.sun.star.uno::Any
HoldMyself // within m_aHoldProperties
};
// the location of an object holding a property value :
union LocationAccess
{
void* pDerivedClassMember; // a pointer to a member of an object of a derived class
sal_Int32 nOwnClassVectorIndex; // an index within m_aHoldProperties
};
css::beans::Property aProperty;
LocationType eLocated; // where is the object containing the value located ?
LocationAccess aLocation; // access to the property value
PropertyDescription()
:aProperty( OUString(), -1, css::uno::Type(), 0 )
,eLocated( LocationType::HoldMyself )
{
aLocation.nOwnClassVectorIndex = -1;
}
};
//= OPropertyContainerHelper
/** helper class for managing property values, and implementing most of the X*Property* interfaces
The property values are usually held in derived classes, but can also be given to the
responsibility of this class here.
For more information, see http://wiki.openoffice.org/wiki/Development/Cpp/Helper/PropertyContainerHelper.
*/
class COMPHELPER_DLLPUBLIC OPropertyContainerHelper
{
typedef ::std::vector< css::uno::Any > PropertyContainer;
PropertyContainer m_aHoldProperties;
// the properties which are hold by this class' instance, not the derived one's
private:
typedef ::std::vector< PropertyDescription > Properties;
typedef Properties::iterator PropertiesIterator;
typedef Properties::const_iterator ConstPropertiesIterator;
Properties m_aProperties;
protected:
OPropertyContainerHelper();
~OPropertyContainerHelper();
/** register a property. The property is represented through a member of the derived class which calls
this methdod.
@param _rName the name of the property
@param _nHandle the handle of the property
@param _nAttributes the attributes of the property
@param _pPointerToMember the pointer to the member representing the property
within the derived class.
@param _rMemberType the cppu type of the property represented by the object
to which _pPointerToMember points.
*/
void registerProperty(const OUString& _rName, sal_Int32 _nHandle, sal_Int32 _nAttributes,
void* _pPointerToMember, const css::uno::Type& _rMemberType);
/** register a property. The property is represented through a css::uno::Any member of the
derived class which calls this methdod.
@param _rName the name of the property
@param _nHandle the handle of the property
@param _nAttributes the attributes of the property
@param _pPointerToMember the pointer to the member representing the property
within the derived class, which has to be a css::uno::Any.
@param _rExpectedType the expected type of the property. NOT the type of the object to which
_pPointerToMember points (this is always an Any).
*/
void registerMayBeVoidProperty(const OUString& _rName, sal_Int32 _nHandle, sal_Int32 _nAttributes,
css::uno::Any* _pPointerToMember, const css::uno::Type& _rExpectedType);
/** register a property. The repository will create an own object holding this property, so there is no
need to declare an extra member in your derived class
@param _rName the name of the property
@param _nHandle the handle of the property
@param _nAttributes the attributes of the property
@param _rType the type of the property
@param _pInitialValue the initial value of the property. May be void if _nAttributes includes
the css::beans::PropertyAttribute::MAYBEVOID flag.
Else it must contain a value compatible with the type described by _rType.
*/
void registerPropertyNoMember(const OUString& _rName, sal_Int32 _nHandle, sal_Int32 _nAttributes,
const css::uno::Type& _rType, css::uno::Any const & _pInitialValue);
/** revokes a previously registered property
@throw css::beans::UnknownPropertyException
if no property with the given handle is registered
*/
void revokeProperty( sal_Int32 _nHandle );
/// checks whether a property with the given handle has been registered
bool isRegisteredProperty( sal_Int32 _nHandle ) const;
/// checks whether a property with the given name has been registered
bool isRegisteredProperty( const OUString& _rName ) const;
// helper for implementing OPropertySetHelper overridables
bool convertFastPropertyValue(
css::uno::Any & rConvertedValue,
css::uno::Any & rOldValue,
sal_Int32 nHandle,
const css::uno::Any& rValue
);
void setFastPropertyValue(
sal_Int32 nHandle,
const css::uno::Any& rValue
);
void getFastPropertyValue(
css::uno::Any& rValue,
sal_Int32 nHandle
) const;
// helper
/** appends the descriptions of all properties which were registered 'til that moment to the given sequence,
keeping the array sorted (by name)
@precond
the given sequence is already sorted by name
@param _rProps
initial property sequence which is to be extended
*/
void describeProperties(css::uno::Sequence< css::beans::Property >& /* [out] */ _rProps) const;
/** retrieves the description for a registered property
@throw css::beans::UnknownPropertyException
if no property with the given name is registered
*/
const css::beans::Property&
getProperty( const OUString& _rName ) const;
private:
/// insertion of _rProp into m_aProperties, keeping the sort order
COMPHELPER_DLLPRIVATE void implPushBackProperty(const PropertyDescription& _rProp);
/// search the PropertyDescription for the given handle (within m_aProperties)
COMPHELPER_DLLPRIVATE PropertiesIterator searchHandle(sal_Int32 _nHandle);
private:
OPropertyContainerHelper( const OPropertyContainerHelper& ) = delete;
OPropertyContainerHelper& operator=( const OPropertyContainerHelper& ) = delete;
};
} // namespace comphelper
#endif // INCLUDED_COMPHELPER_PROPERTYCONTAINERHELPER_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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