blob: 0ce80922b8ceb2a71aa7d3f2a2ea4d4db54f52cc (
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
|
/* -*- 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 <memory>
#include <tools/IconCache.hxx>
#include <tools/debug.hxx>
#include <osl/doublecheckedlocking.h>
#include <osl/getglobalmutex.hxx>
#include <unordered_map>
namespace sd
{
//===== IconCache::Implementation =============================================
class IconCache::Implementation
{
private:
friend class IconCache;
/** This pointer holds a valid reference from first time that
IconCache::Instance() is called to the end of the sd module when the
cache is destroyed from SdGlobalResourceContainer.
*/
static IconCache* s_pIconCache;
typedef std::unordered_map<OUString, Image> ImageContainer;
ImageContainer maContainer;
Image GetIcon(const OUString& rResourceId);
};
IconCache* IconCache::Implementation::s_pIconCache = nullptr;
Image IconCache::Implementation::GetIcon(const OUString& rResourceId)
{
Image aResult;
ImageContainer::iterator iImage = maContainer.find(rResourceId);
if (iImage == maContainer.end())
{
aResult = Image(StockImage::Yes, rResourceId);
maContainer[rResourceId] = aResult;
}
else
aResult = iImage->second;
return aResult;
}
//===== IconCache =============================================================
//static
IconCache& IconCache::Instance()
{
if (Implementation::s_pIconCache == nullptr)
{
::osl::GetGlobalMutex aMutexFunctor;
::osl::MutexGuard aGuard(aMutexFunctor());
if (Implementation::s_pIconCache == nullptr)
{
IconCache* pCache = new IconCache();
SdGlobalResourceContainer::Instance().AddResource(
::std::unique_ptr<SdGlobalResource>(pCache));
OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
Implementation::s_pIconCache = pCache;
}
}
else
{
OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
}
DBG_ASSERT(Implementation::s_pIconCache != nullptr, "IconCache::Instance(): instance is NULL");
return *Implementation::s_pIconCache;
}
Image IconCache::GetIcon(const OUString& rResourceId) { return mpImpl->GetIcon(rResourceId); }
IconCache::IconCache()
: mpImpl(new Implementation)
{
}
IconCache::~IconCache()
{
// empty
}
} // end of namespace sd
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|