/* -*- 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 #include #include #include 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 method. @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 method. @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: */