svx/source/unodraw/shapepropertynotifier.cxx

   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
  21 #include "svx/shapepropertynotifier.hxx"
  22
  23 #include <com/sun/star/beans/XPropertySet.hpp>
  24
  25 #include <comphelper/stl_types.hxx>
  26 #include <cppuhelper/interfacecontainer.hxx>
  27 #include <cppuhelper/weak.hxx>
  28 #include <tools/diagnose_ex.h>
  29
  30 #include <boost/unordered_map.hpp>
  31
  32 namespace
  33 {
  34
  35     struct ShapePropertyHash
  36     {
  37         size_t operator()( ::svx::ShapeProperty __x ) const
  38         {
  39             return size_t( __x );
  40         }
  41     };
  42 }
  43
  44 //........................................................................
  45 namespace svx
  46 {
  47 //........................................................................
  48
  49     using ::com::sun::star::uno::Reference;
  50     using ::com::sun::star::uno::XInterface;
  51     using ::com::sun::star::uno::UNO_QUERY;
  52     using ::com::sun::star::uno::UNO_QUERY_THROW;
  53     using ::com::sun::star::uno::UNO_SET_THROW;
  54     using ::com::sun::star::uno::Exception;
  55     using ::com::sun::star::uno::RuntimeException;
  56     using ::com::sun::star::uno::Any;
  57     using ::com::sun::star::uno::makeAny;
  58     using ::com::sun::star::uno::Sequence;
  59     using ::com::sun::star::uno::Type;
  60     using ::com::sun::star::beans::PropertyChangeEvent;
  61     using ::com::sun::star::beans::XPropertyChangeListener;
  62     using ::com::sun::star::lang::EventObject;
  63     using ::com::sun::star::beans::XPropertySet;
  64
  65     typedef ::boost::unordered_map< ShapeProperty, PPropertyValueProvider, ShapePropertyHash  >    PropertyProviders;
  66
  67     typedef ::cppu::OMultiTypeInterfaceContainerHelperVar   <   OUString
  68                                                             ,   OUStringHash
  69                                                             ,   ::comphelper::UStringEqual
  70                                                             >   PropertyChangeListenerContainer;
  71
  72     //====================================================================
  73     //= IPropertyValueProvider
  74     //====================================================================
  75     IPropertyValueProvider::~IPropertyValueProvider()
  76     {
  77     }
  78
  79     //====================================================================
  80     //= PropertyChangeNotifier_Data
  81     //====================================================================
  82     struct PropertyChangeNotifier_Data
  83     {
  84         ::cppu::OWeakObject&            m_rContext;
  85         PropertyProviders               m_aProviders;
  86         PropertyChangeListenerContainer m_aPropertyChangeListeners;
  87
  88         PropertyChangeNotifier_Data( ::cppu::OWeakObject& _rContext, ::osl::Mutex& _rMutex )
  89             :m_rContext( _rContext )
  90             ,m_aPropertyChangeListeners( _rMutex )
  91         {
  92         }
  93     };
  94     //====================================================================
  95     //= PropertyValueProvider
  96     //====================================================================
  97     //--------------------------------------------------------------------
  98     OUString PropertyValueProvider::getPropertyName() const
  99     {
 100         return m_sPropertyName;
 101     }
 102
 103     //--------------------------------------------------------------------
 104     void PropertyValueProvider::getCurrentValue( Any& _out_rValue ) const
 105     {
 106         Reference< XPropertySet > xContextProps( const_cast< PropertyValueProvider* >( this )->m_rContext, UNO_QUERY_THROW );
 107         _out_rValue = xContextProps->getPropertyValue( getPropertyName() );
 108     }
 109
 110     //====================================================================
 111     //= PropertyChangeNotifier
 112     //====================================================================
 113     //--------------------------------------------------------------------
 114     PropertyChangeNotifier::PropertyChangeNotifier( ::cppu::OWeakObject& _rOwner, ::osl::Mutex& _rMutex )
 115         :m_pData( new PropertyChangeNotifier_Data( _rOwner, _rMutex ) )
 116     {
 117     }
 118
 119     //--------------------------------------------------------------------
 120     PropertyChangeNotifier::~PropertyChangeNotifier()
 121     {
 122     }
 123
 124     //--------------------------------------------------------------------
 125     void PropertyChangeNotifier::registerProvider( const ShapeProperty _eProperty, const PPropertyValueProvider _pProvider )
 126     {
 127         ENSURE_OR_THROW( _eProperty != eInvalidShapeProperty, "Illegal ShapeProperty value!" );
 128         ENSURE_OR_THROW( !!_pProvider, "NULL factory not allowed." );
 129
 130         OSL_ENSURE( m_pData->m_aProviders.find( _eProperty ) == m_pData->m_aProviders.end(),
 131             "PropertyChangeNotifier::registerProvider: factory for this ID already present!" );
 132
 133         m_pData->m_aProviders[ _eProperty ] = _pProvider;
 134     }
 135
 136     //--------------------------------------------------------------------
 137     void PropertyChangeNotifier::notifyPropertyChange( const ShapeProperty _eProperty ) const
 138     {
 139         ENSURE_OR_THROW( _eProperty != eInvalidShapeProperty, "Illegal ShapeProperty value!" );
 140
 141         PropertyProviders::const_iterator provPos = m_pData->m_aProviders.find( _eProperty );
 142         OSL_ENSURE( provPos != m_pData->m_aProviders.end(), "PropertyChangeNotifier::notifyPropertyChange: no factory!" );
 143         if ( provPos == m_pData->m_aProviders.end() )
 144             return;
 145
 146         OUString sPropertyName( provPos->second->getPropertyName() );
 147
 148         ::cppu::OInterfaceContainerHelper* pPropListeners = m_pData->m_aPropertyChangeListeners.getContainer( sPropertyName );
 149         ::cppu::OInterfaceContainerHelper* pAllListeners = m_pData->m_aPropertyChangeListeners.getContainer( OUString() );
 150         if ( !pPropListeners && !pAllListeners )
 151             return;
 152
 153         try
 154         {
 155             PropertyChangeEvent aEvent;
 156             aEvent.Source = m_pData->m_rContext;
 157             // Handle/OldValue not supported
 158             aEvent.PropertyName = provPos->second->getPropertyName();
 159             provPos->second->getCurrentValue( aEvent.NewValue );
 160
 161             if ( pPropListeners )
 162                 pPropListeners->notifyEach( &XPropertyChangeListener::propertyChange, aEvent );
 163             if ( pAllListeners )
 164                 pAllListeners->notifyEach( &XPropertyChangeListener::propertyChange, aEvent );
 165         }
 166         catch( const Exception& )
 167         {
 168             DBG_UNHANDLED_EXCEPTION();
 169         }
 170     }
 171
 172     //--------------------------------------------------------------------
 173     void PropertyChangeNotifier::addPropertyChangeListener( const OUString& _rPropertyName, const Reference< XPropertyChangeListener >& _rxListener )
 174     {
 175         m_pData->m_aPropertyChangeListeners.addInterface( _rPropertyName, _rxListener );
 176     }
 177
 178     //--------------------------------------------------------------------
 179     void PropertyChangeNotifier::removePropertyChangeListener( const OUString& _rPropertyName, const Reference< XPropertyChangeListener >& _rxListener )
 180     {
 181         m_pData->m_aPropertyChangeListeners.removeInterface( _rPropertyName, _rxListener );
 182     }
 183
 184     //--------------------------------------------------------------------
 185     void PropertyChangeNotifier::disposing()
 186     {
 187         EventObject aEvent;
 188         aEvent.Source = m_pData->m_rContext;
 189         m_pData->m_aPropertyChangeListeners.disposeAndClear( aEvent );
 190     }
 191
 192 //........................................................................
 193 } // namespace svx
 194 //........................................................................
 195
 196 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */