Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_SVX_SHAPEPROPERTYNOTIFIER_HXX
      21             : #define INCLUDED_SVX_SHAPEPROPERTYNOTIFIER_HXX
      22             : 
      23             : #include <svx/svxdllapi.h>
      24             : #include <svx/shapeproperty.hxx>
      25             : 
      26             : #include <com/sun/star/beans/PropertyChangeEvent.hpp>
      27             : #include <com/sun/star/beans/XPropertyChangeListener.hpp>
      28             : 
      29             : #include <memory>
      30             : 
      31             : namespace cppu
      32             : {
      33             :     class OWeakObject;
      34             : }
      35             : 
      36             : 
      37             : namespace svx
      38             : {
      39             : 
      40             : 
      41             : 
      42             :     //= IPropertyValueProvider
      43             : 
      44             :     /** a provider for a property value
      45             :     */
      46      340858 :     class SVX_DLLPUBLIC IPropertyValueProvider
      47             :     {
      48             :     public:
      49             :         /** returns the name of the property which this provider is responsible for
      50             :         */
      51             :         virtual OUString getPropertyName() const = 0;
      52             : 
      53             :         /** returns the current value of the property which the provider is responsible for
      54             :         */
      55             :         virtual void getCurrentValue( ::com::sun::star::uno::Any& _out_rValue ) const = 0;
      56             : 
      57             :         virtual ~IPropertyValueProvider();
      58             :     };
      59             :     typedef std::shared_ptr< IPropertyValueProvider >  PPropertyValueProvider;
      60             : 
      61             : 
      62             :     //= PropertyValueProvider
      63             : 
      64             :     /** default implementation of a IPropertyValueProvider
      65             : 
      66             :         This default implementation queries the object which it is constructed with for the XPropertySet interface,
      67             :         and calls the getPropertyValue method.
      68             :     */
      69      347212 :     class SVX_DLLPUBLIC PropertyValueProvider   :public IPropertyValueProvider
      70             :     {
      71             :     public:
      72      340858 :         PropertyValueProvider( ::cppu::OWeakObject& _rContext, const sal_Char* _pAsciiPropertyName )
      73             :             :m_rContext( _rContext )
      74      340858 :             ,m_sPropertyName( OUString::createFromAscii( _pAsciiPropertyName ) )
      75             :         {
      76      340858 :         }
      77             : 
      78             :         virtual OUString getPropertyName() const SAL_OVERRIDE;
      79             :         virtual void getCurrentValue( ::com::sun::star::uno::Any& _out_rValue ) const SAL_OVERRIDE;
      80             : 
      81             :     protected:
      82           0 :         ::cppu::OWeakObject&    getContext() const { return m_rContext; }
      83             :         PropertyValueProvider(const PropertyValueProvider&) SAL_DELETED_FUNCTION;
      84             :         PropertyValueProvider& operator=(const PropertyValueProvider&) SAL_DELETED_FUNCTION;
      85             : 
      86             :     private:
      87             :         ::cppu::OWeakObject&    m_rContext;
      88             :         const OUString   m_sPropertyName;
      89             :     };
      90             : 
      91             : 
      92             :     //= PropertyChangeNotifier
      93             : 
      94             :     struct PropertyChangeNotifier_Data;
      95             : 
      96             :     /** helper class for notifying XPropertyChangeListeners
      97             : 
      98             :         The class is intended to be held as member of the class which does the property change broadcasting.
      99             :     */
     100             :     class SVX_DLLPUBLIC PropertyChangeNotifier
     101             :     {
     102             :     public:
     103             :         /** constructs a notifier instance
     104             : 
     105             :             @param _rOwner
     106             :                 the owner instance of the notifier. Will be used as css.lang.EventObject.Source when
     107             :                 notifying events.
     108             :         */
     109             :         PropertyChangeNotifier( ::cppu::OWeakObject& _rOwner, ::osl::Mutex& _rMutex );
     110             :         ~PropertyChangeNotifier();
     111             : 
     112             :         // listener maintanance
     113             :         void addPropertyChangeListener( const OUString& _rPropertyName, const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertyChangeListener >& _rxListener );
     114             :         void removePropertyChangeListener( const OUString& _rPropertyName, const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertyChangeListener >& _rxListener );
     115             : 
     116             :         /** registers a IPropertyValueProvider
     117             :         */
     118             :         void    registerProvider( const ShapeProperty _eProperty, const PPropertyValueProvider& _rProvider );
     119             : 
     120             :         /** notifies changes in the given property to all registered listeners
     121             : 
     122             :             If no property value provider for the given property ID is registered, this is worth an assertion in a
     123             :             non-product build, and otherwise ignored.
     124             :         */
     125             :         void    notifyPropertyChange( const ShapeProperty _eProperty ) const;
     126             : 
     127             :         /** is called to dispose the instance
     128             :         */
     129             :         void    disposing();
     130             : 
     131             :     private:
     132             :         PropertyChangeNotifier(const PropertyChangeNotifier&) SAL_DELETED_FUNCTION;
     133             :         PropertyChangeNotifier& operator=(const PropertyChangeNotifier&) SAL_DELETED_FUNCTION;
     134             : 
     135             :         std::unique_ptr< PropertyChangeNotifier_Data >  m_xData;
     136             :     };
     137             : 
     138             : 
     139             : }
     140             : 
     141             : 
     142             : #endif // INCLUDED_SVX_SHAPEPROPERTYNOTIFIER_HXX
     143             : 
     144             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */