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
|
/* -*- 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_PROPARRHLP_HXX
#define INCLUDED_COMPHELPER_PROPARRHLP_HXX
#include <comphelper/propagg.hxx>
#include <cppuhelper/propshlp.hxx>
#include <mutex>
#include <osl/diagnose.h>
namespace comphelper
{
template <class TYPE>
class OPropertyArrayUsageHelper
{
protected:
static sal_Int32 s_nRefCount;
static ::cppu::IPropertyArrayHelper* s_pProps;
static std::mutex& theMutex()
{
static std::mutex SINGLETON;
return SINGLETON;
}
public:
OPropertyArrayUsageHelper();
virtual ~OPropertyArrayUsageHelper();
/** call this in the getInfoHelper method of your derived class. The method returns the array helper of the
class, which is created if necessary.
*/
::cppu::IPropertyArrayHelper* getArrayHelper();
protected:
/** used to implement the creation of the array helper which is shared amongst all instances of the class.
This method needs to be implemented in derived classes.
<BR>
The method gets called with Mutex acquired.
@return a pointer to the newly created array helper. Must not be NULL.
*/
virtual ::cppu::IPropertyArrayHelper* createArrayHelper( ) const = 0;
};
/** an OPropertyArrayUsageHelper which will create an OPropertyArrayAggregationHelper
*/
template <class TYPE>
class OAggregationArrayUsageHelper: public OPropertyArrayUsageHelper<TYPE>
{
protected:
/** overwrite this in your derived class. initialize the two sequences with your and your aggregate's
properties.
<BR>
The method gets called with Mutex acquired.
@param _rProps out parameter to be filled with the property descriptions of your own class
@param _rAggregateProps out parameter to be filled with the properties of your aggregate.
*/
virtual void fillProperties(
css::uno::Sequence< css::beans::Property >& /* [out] */ _rProps,
css::uno::Sequence< css::beans::Property >& /* [out] */ _rAggregateProps
) const = 0;
/** creates an OPropertyArrayAggregationHelper filled with properties for which's initialization
fillProperties is called. getInfoService and getFirstAggregateId may be overwritten to determine
the additional parameters of the OPropertyArrayAggregationHelper.
*/
virtual ::cppu::IPropertyArrayHelper* createArrayHelper( ) const;
};
template<class TYPE>
sal_Int32 OPropertyArrayUsageHelper< TYPE >::s_nRefCount = 0;
template<class TYPE>
::cppu::IPropertyArrayHelper* OPropertyArrayUsageHelper< TYPE >::s_pProps = nullptr;
template <class TYPE>
OPropertyArrayUsageHelper<TYPE>::OPropertyArrayUsageHelper()
{
std::unique_lock aGuard(theMutex());
++s_nRefCount;
}
template <class TYPE>
OPropertyArrayUsageHelper<TYPE>::~OPropertyArrayUsageHelper()
{
std::unique_lock aGuard(theMutex());
OSL_ENSURE(s_nRefCount > 0, "OPropertyArrayUsageHelper::~OPropertyArrayUsageHelper : suspicious call : have a refcount of 0 !");
if (!--s_nRefCount)
{
delete s_pProps;
s_pProps = nullptr;
}
}
template <class TYPE>
::cppu::IPropertyArrayHelper* OPropertyArrayUsageHelper<TYPE>::getArrayHelper()
{
OSL_ENSURE(s_nRefCount, "OPropertyArrayUsageHelper::getArrayHelper : suspicious call : have a refcount of 0 !");
if (!s_pProps)
{
std::unique_lock aGuard(theMutex());
if (!s_pProps)
{
s_pProps = createArrayHelper();
OSL_ENSURE(s_pProps, "OPropertyArrayUsageHelper::getArrayHelper : createArrayHelper returned nonsense !");
}
}
return s_pProps;
}
template <class TYPE> inline
::cppu::IPropertyArrayHelper* OAggregationArrayUsageHelper<TYPE>::createArrayHelper() const
{
css::uno::Sequence< css::beans::Property > aProps;
css::uno::Sequence< css::beans::Property > aAggregateProps;
fillProperties(aProps, aAggregateProps);
OSL_ENSURE(aProps.hasElements(), "OAggregationArrayUsageHelper::createArrayHelper : fillProperties returned nonsense !");
return new OPropertyArrayAggregationHelper(aProps, aAggregateProps, nullptr, DEFAULT_AGGREGATE_PROPERTY_ID);
}
}
#endif // INCLUDED_COMPHELPER_PROPARRHLP_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
