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| -rw-r--r-- | include/comphelper/propertybag.hxx | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/include/comphelper/propertybag.hxx b/include/comphelper/propertybag.hxx new file mode 100644 index 000000000..3cf9de9ff --- /dev/null +++ b/include/comphelper/propertybag.hxx @@ -0,0 +1,226 @@ +/* -*- 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_PROPERTYBAG_HXX +#define INCLUDED_COMPHELPER_PROPERTYBAG_HXX + +#include <config_options.h> +#include <com/sun/star/uno/Any.h> +#include <comphelper/comphelperdllapi.h> +#include <comphelper/propertycontainerhelper.hxx> + +#include <map> + + +namespace comphelper +{ + + + //= PropertyBag + + /** provides a bag of properties associated with their values + + This class can, for instance, be used for components which need to implement + the com.sun.star.beans.PropertyBag service. + */ + class UNLESS_MERGELIBS(COMPHELPER_DLLPUBLIC) PropertyBag final : protected OPropertyContainerHelper + { + std::map< sal_Int32, css::uno::Any > aDefaults; + bool m_bAllowEmptyPropertyName; + public: + PropertyBag(); + virtual ~PropertyBag(); + + /** allow adding property with empty string as name + (by default, such names are rejected with IllegalActionException). + @param i_isAllowed + iff true, empty property name will be allowed + */ + void setAllowEmptyPropertyName(bool i_isAllowed); + + /** adds a property to the bag + + The type of the property is determined from its initial value (<code>_rInitialValue</code>). + + @param _rName + the name of the new property. Must not be empty unless + explicitly allowed with setAllowEmptyPropertyName. + @param _nHandle + the handle of the new property + @param _nAttributes + the attributes of the property + @param _rInitialValue + the initial value of the property. Must not be <NULL/>, to allow + determining the property type. + + @throws css::beans::IllegalTypeException + if the initial value is <NULL/> + @throws css::beans::PropertyExistException + if the name or the handle are already used + @throws css::beans::IllegalArgumentException + if the name is empty + */ + void addProperty( + const OUString& _rName, + sal_Int32 _nHandle, + sal_Int32 _nAttributes, + const css::uno::Any& _rInitialValue + ); + + /** adds a property to the bag + + The initial value of the property is <NULL/>. + + @param _rName + the name of the new property. Must not be empty unless + explicitly allowed with setAllowEmptyPropertyName. + @param _rType + the type of the new property + @param _nHandle + the handle of the new property + @param _nAttributes + the attributes of the property + + @throws css::beans::IllegalTypeException + if the initial value is <NULL/> + @throws css::beans::PropertyExistException + if the name or the handle are already used + @throws css::beans::IllegalArgumentException + if the name is empty + */ + void addVoidProperty( + const OUString& _rName, + const css::uno::Type& _rType, + sal_Int32 _nHandle, + sal_Int32 _nAttributes + ); + + /** removes a property from the bag + @param _rName + the name of the to-be-removed property. + @throws UnknownPropertyException + if the bag does not contain a property with the given name + @throws NotRemoveableException + if the property with the given name is not removable, as indicated + by the property attributes used in a previous <code>addProperty</code> + call. + */ + void removeProperty( + const OUString& _rName + ); + + /** describes all properties in the bag + @param _out_rProps + takes, upon return, the descriptions of all properties in the bag + */ + void describeProperties( + css::uno::Sequence< css::beans::Property >& _out_rProps + ) const + { + OPropertyContainerHelper::describeProperties( _out_rProps ); + } + + /** retrieves the value of a property given by handle + @param _nHandle + the handle of the property whose value is to be retrieved + @param _out_rValue + output parameter taking the property value + @throws UnknownPropertyException + if the given handle does not denote a property in the bag + */ + void getFastPropertyValue( + sal_Int32 _nHandle, + css::uno::Any& _out_rValue + ) const; + + /** converts a to-be-set value of a property (given by handle) so that it can + be used in subsequent calls to setFastPropertyValue + @param _nHandle + the handle of the property + @param _rNewValue + the new value, which should be converted + @param _out_rConvertedValue + output parameter taking the converted value + @param _out_rCurrentValue + output parameter taking the current value of the + property + @throws UnknownPropertyException + if the given handle does not denote a property in the bag + @throws IllegalArgumentException + if the given value cannot be lossless converted into a value + for the given property. + */ + bool convertFastPropertyValue( + sal_Int32 _nHandle, + const css::uno::Any& _rNewValue, + css::uno::Any& _out_rConvertedValue, + css::uno::Any& _out_rCurrentValue + ) const; + + /** sets a new value for a property given by handle + @throws UnknownPropertyException + if the given handle does not denote a property in the bag + */ + void setFastPropertyValue( + sal_Int32 _nHandle, + const css::uno::Any& _rValue + ); + + /** returns the default value for a property given by handle + + The default value of a property is its initial value, as passed + to ->addProperty. + + @param _nHandle + handle of the property whose default value is to be obtained + @param _out_rValue + the default value + @throws UnknownPropertyException + if the given handle does not denote a property in the bag + */ + void getPropertyDefaultByHandle( + sal_Int32 _nHandle, + css::uno::Any& _out_rValue + ) const; + + /** determines whether a property with a given name is part of the bag + */ + bool hasPropertyByName( const OUString& _rName ) const + { + return isRegisteredProperty( _rName ); + } + + /** determines whether a property with a given handle is part of the bag + */ + bool hasPropertyByHandle( sal_Int32 _nHandle ) const + { + return isRegisteredProperty( _nHandle ); + } + protected: + using OPropertyContainerHelper::convertFastPropertyValue; + using OPropertyContainerHelper::getFastPropertyValue; + }; + + +} // namespace comphelper + + +#endif // INCLUDED_COMPHELPER_PROPERTYBAG_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |