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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
/* -*- 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_ANYCOMPARE_HXX
#define INCLUDED_COMPHELPER_ANYCOMPARE_HXX
#include <comphelper/comphelperdllapi.h>
#include <com/sun/star/lang/IllegalArgumentException.hpp>
#include <com/sun/star/i18n/XCollator.hpp>
#include <comphelper/extract.hxx>
#include <memory>
namespace comphelper
{
//= IKeyPredicateLess
class SAL_NO_VTABLE IKeyPredicateLess
{
public:
virtual bool isLess( css::uno::Any const & _lhs, css::uno::Any const & _rhs ) const = 0;
virtual ~IKeyPredicateLess() {}
};
//= LessPredicateAdapter
struct LessPredicateAdapter
{
LessPredicateAdapter( const IKeyPredicateLess& _predicate )
:m_predicate( _predicate )
{
}
bool operator()( css::uno::Any const & _lhs, css::uno::Any const & _rhs ) const
{
return m_predicate.isLess( _lhs, _rhs );
}
private:
IKeyPredicateLess const & m_predicate;
};
//= ScalarPredicateLess
template< typename SCALAR >
class ScalarPredicateLess : public IKeyPredicateLess
{
public:
virtual bool isLess( css::uno::Any const & _lhs, css::uno::Any const & _rhs ) const override
{
SCALAR lhs(0), rhs(0);
if ( !( _lhs >>= lhs )
|| !( _rhs >>= rhs )
)
throw css::lang::IllegalArgumentException();
return lhs < rhs;
}
};
//= StringPredicateLess
class StringPredicateLess : public IKeyPredicateLess
{
public:
virtual bool isLess( css::uno::Any const & _lhs, css::uno::Any const & _rhs ) const override
{
OUString lhs, rhs;
if ( !( _lhs >>= lhs )
|| !( _rhs >>= rhs )
)
throw css::lang::IllegalArgumentException();
return lhs < rhs;
}
};
//= StringCollationPredicateLess
class StringCollationPredicateLess : public IKeyPredicateLess
{
public:
StringCollationPredicateLess( css::uno::Reference< css::i18n::XCollator > const & i_collator )
:m_collator( i_collator )
{
}
virtual bool isLess( css::uno::Any const & _lhs, css::uno::Any const & _rhs ) const override
{
OUString lhs, rhs;
if ( !( _lhs >>= lhs )
|| !( _rhs >>= rhs )
)
throw css::lang::IllegalArgumentException();
return m_collator->compareString( lhs, rhs ) < 0;
}
private:
css::uno::Reference< css::i18n::XCollator > const m_collator;
};
//= TypePredicateLess
class TypePredicateLess : public IKeyPredicateLess
{
public:
virtual bool isLess( css::uno::Any const & _lhs, css::uno::Any const & _rhs ) const override
{
css::uno::Type lhs, rhs;
if ( !( _lhs >>= lhs )
|| !( _rhs >>= rhs )
)
throw css::lang::IllegalArgumentException();
return lhs.getTypeName() < rhs.getTypeName();
}
};
//= EnumPredicateLess
class EnumPredicateLess : public IKeyPredicateLess
{
public:
EnumPredicateLess( css::uno::Type const & _enumType )
:m_enumType( _enumType )
{
}
virtual bool isLess( css::uno::Any const & _lhs, css::uno::Any const & _rhs ) const override
{
sal_Int32 lhs(0), rhs(0);
if ( !::cppu::enum2int( lhs, _lhs )
|| !::cppu::enum2int( rhs, _rhs )
|| !_lhs.getValueType().equals( m_enumType )
|| !_rhs.getValueType().equals( m_enumType )
)
throw css::lang::IllegalArgumentException();
return lhs < rhs;
}
private:
css::uno::Type const m_enumType;
};
//= InterfacePredicateLess
class InterfacePredicateLess : public IKeyPredicateLess
{
public:
virtual bool isLess( css::uno::Any const & _lhs, css::uno::Any const & _rhs ) const override
{
if ( ( _lhs.getValueTypeClass() != css::uno::TypeClass_INTERFACE )
|| ( _rhs.getValueTypeClass() != css::uno::TypeClass_INTERFACE )
)
throw css::lang::IllegalArgumentException();
css::uno::Reference< css::uno::XInterface > lhs( _lhs, css::uno::UNO_QUERY );
css::uno::Reference< css::uno::XInterface > rhs( _rhs, css::uno::UNO_QUERY );
return lhs.get() < rhs.get();
}
};
//= getStandardLessPredicate
/** creates a default IKeyPredicateLess instance for the given UNO type
@param i_type
the type for which a predicate instance should be created
@param i_collator
specifies a collator instance to use, or <NULL/>. If <NULL/>, strings will be compared using the <code><</code>
operator, otherwise the collator will be used. The parameter is ignored if <arg>i_type</arg> does not specify
the string type.
@return
a default implementation of IKeyPredicateLess, which is able to compare values of the given type. If no
such default implementation is known for the given type, then <NULL/> is returned.
*/
::std::unique_ptr< IKeyPredicateLess > COMPHELPER_DLLPUBLIC
getStandardLessPredicate(
css::uno::Type const & i_type,
css::uno::Reference< css::i18n::XCollator > const & i_collator
);
} // namespace comphelper
#endif // INCLUDED_COMPHELPER_ANYCOMPARE_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
