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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 SVX_PROPERTYCHANGENOTIFIER_HXX
21 : #define SVX_PROPERTYCHANGENOTIFIER_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 <boost/noncopyable.hpp>
30 : #include <boost/shared_ptr.hpp>
31 : #include <memory>
32 :
33 : namespace cppu
34 : {
35 : class OWeakObject;
36 : }
37 :
38 : //........................................................................
39 : namespace svx
40 : {
41 : //........................................................................
42 :
43 : //====================================================================
44 : //= IPropertyValueProvider
45 : //====================================================================
46 : /** a provider for a property value
47 : */
48 173571 : class SVX_DLLPUBLIC IPropertyValueProvider
49 : {
50 : public:
51 : /** returns the name of the property which this provider is responsible for
52 : */
53 : virtual OUString getPropertyName() const = 0;
54 :
55 : /** returns the current value of the property which the provider is responsible for
56 : */
57 : virtual void getCurrentValue( ::com::sun::star::uno::Any& _out_rValue ) const = 0;
58 :
59 : virtual ~IPropertyValueProvider();
60 : };
61 : typedef ::boost::shared_ptr< IPropertyValueProvider > PPropertyValueProvider;
62 :
63 : //====================================================================
64 : //= PropertyValueProvider
65 : //====================================================================
66 : /** default implementation of a IPropertyValueProvider
67 :
68 : This default implementation queries the object which it is constructed with for the XPropertySet interface,
69 : and calls the getPropertyValue method.
70 : */
71 174660 : class SVX_DLLPUBLIC PropertyValueProvider :public IPropertyValueProvider
72 : ,public ::boost::noncopyable
73 : {
74 : public:
75 173571 : PropertyValueProvider( ::cppu::OWeakObject& _rContext, const sal_Char* _pAsciiPropertyName )
76 : :m_rContext( _rContext )
77 173571 : ,m_sPropertyName( OUString::createFromAscii( _pAsciiPropertyName ) )
78 : {
79 173571 : }
80 :
81 : virtual OUString getPropertyName() const;
82 : virtual void getCurrentValue( ::com::sun::star::uno::Any& _out_rValue ) const;
83 :
84 : protected:
85 0 : ::cppu::OWeakObject& getContext() const { return m_rContext; }
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 : public ::boost::noncopyable
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 _pProvider );
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 : ::std::auto_ptr< PropertyChangeNotifier_Data > m_pData;
133 : };
134 :
135 : //........................................................................
136 : } // namespace svx
137 : //........................................................................
138 :
139 : #endif // SVX_PROPERTYCHANGENOTIFIER_HXX
140 :
141 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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