summaryrefslogtreecommitdiffstats
path: root/forms/source/xforms/propertysetbase.cxx
blob: 0b0787c49c3ebd195a28d071510f005787143564 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
/* -*- 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 .
 */


#include "propertysetbase.hxx"

#include <com/sun/star/beans/XMultiPropertySet.hpp>
#include <com/sun/star/uno/Reference.hxx>

using com::sun::star::uno::Any;
using com::sun::star::uno::Reference;
using com::sun::star::uno::Exception;
using com::sun::star::lang::IllegalArgumentException;
using com::sun::star::beans::Property;
using com::sun::star::beans::XPropertySetInfo;

PropertyAccessorBase::~PropertyAccessorBase()
{
}

PropertySetBase::PropertySetBase( )
{
}

PropertySetBase::~PropertySetBase( )
{
}

cppu::IPropertyArrayHelper& SAL_CALL PropertySetBase::getInfoHelper()
{
    if ( !m_pProperties )
    {
        OSL_ENSURE( !m_aProperties.empty(), "PropertySetBase::getInfoHelper: no registered properties!" );
        m_pProperties.reset(new cppu::OPropertyArrayHelper( m_aProperties.data(), m_aProperties.size(), false ));
    }
    return *m_pProperties;
}

Reference< XPropertySetInfo > SAL_CALL PropertySetBase::getPropertySetInfo(  )
{
    return cppu::OPropertySetHelper::createPropertySetInfo( getInfoHelper() );
}

void PropertySetBase::registerProperty( const Property& rProperty,
    const ::rtl::Reference< PropertyAccessorBase >& rAccessor )
{
    OSL_ENSURE(rAccessor,
               "PropertySetBase::registerProperty: invalid property accessor, this will crash!");
    m_aAccessors.emplace( rProperty.Handle, rAccessor );

    OSL_ENSURE( rAccessor->isWriteable()
                == ( ( rProperty.Attributes & css::beans::PropertyAttribute::READONLY ) == 0 ),
        "PropertySetBase::registerProperty: inconsistence!" );

    m_aProperties.push_back( rProperty );
}

void PropertySetBase::notifyAndCachePropertyValue( sal_Int32 nHandle )
{
    ::osl::ClearableMutexGuard aGuard( GetMutex() );

    PropertyValueCache::iterator aPos = m_aCache.find( nHandle );
    if ( aPos == m_aCache.end() )
    {   // method has never before been invoked for this property
        try
        {
            // determine the type of this property
            ::cppu::IPropertyArrayHelper& rPropertyMetaData = getInfoHelper();
            OUString sPropName;
            OSL_VERIFY( rPropertyMetaData.fillPropertyMembersByHandle( &sPropName, nullptr, nHandle ) );
            Property aProperty = rPropertyMetaData.getPropertyByName( sPropName );
            // default construct a value of this type
            Any aEmptyValue( nullptr, aProperty.Type );
            // insert into the cache
            aPos = m_aCache.emplace( nHandle, aEmptyValue ).first;
        }
        catch( const Exception& )
        {
            OSL_FAIL( "PropertySetBase::notifyAndCachePropertyValue: this is not expected to fail!" );
        }
    }
    Any aOldValue = aPos->second;
    // determine the current value
    Any aNewValue;
    getFastPropertyValue( aNewValue, nHandle );
    // remember the old value
    aPos->second = aNewValue;

    aGuard.clear();
    if ( aNewValue != aOldValue )
        firePropertyChange( nHandle, aNewValue, aOldValue );
}

void PropertySetBase::initializePropertyValueCache( sal_Int32 nHandle )
{
    Any aCurrentValue;
    getFastPropertyValue( aCurrentValue, nHandle );

    ::std::pair< PropertyValueCache::iterator, bool > aInsertResult =
          m_aCache.emplace( nHandle, aCurrentValue );
    OSL_ENSURE( aInsertResult.second, "PropertySetBase::initializePropertyValueCache: already cached a value for this property!" );
}

PropertyAccessorBase& PropertySetBase::locatePropertyHandler( sal_Int32 nHandle ) const
{
    PropertyAccessors::const_iterator aPropertyPos = m_aAccessors.find( nHandle );
    OSL_ENSURE( aPropertyPos != m_aAccessors.end() && aPropertyPos->second,
        "PropertySetBase::locatePropertyHandler: accessor map is corrupted!" );
        // neither should this be called for handles where there is no accessor, nor should a
        // NULL accessor be in the map
    return *aPropertyPos->second;
}

sal_Bool SAL_CALL PropertySetBase::convertFastPropertyValue( Any& rConvertedValue, Any& rOldValue, sal_Int32 nHandle,
    const Any& rValue )
{
    PropertyAccessorBase& rAccessor = locatePropertyHandler( nHandle );
    if ( !rAccessor.approveValue( rValue ) )
        throw IllegalArgumentException( OUString(), *this, 0 );

    rAccessor.getValue( rOldValue );
    if ( rOldValue != rValue )
    {
        rConvertedValue = rValue;   // no conversion at all
        return true;
    }
    return false;
}

void SAL_CALL PropertySetBase::setFastPropertyValue_NoBroadcast( sal_Int32 nHandle, const Any& rValue )
{
    PropertyAccessorBase& rAccessor = locatePropertyHandler( nHandle );
    rAccessor.setValue( rValue );
}

void SAL_CALL PropertySetBase::getFastPropertyValue( Any& rValue, sal_Int32 nHandle ) const
{
    PropertyAccessorBase& rAccessor = locatePropertyHandler( nHandle );
    rAccessor.getValue( rValue );
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */