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agentfilterproxymodel.cpp
1 /*
2  Copyright (c) 2007 Volker Krause <vkrause@kde.org>
3 
4  This library is free software; you can redistribute it and/or modify it
5  under the terms of the GNU Library General Public License as published by
6  the Free Software Foundation; either version 2 of the License, or (at your
7  option) any later version.
8 
9  This library is distributed in the hope that it will be useful, but WITHOUT
10  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
12  License for more details.
13 
14  You should have received a copy of the GNU Library General Public License
15  along with this library; see the file COPYING.LIB. If not, write to the
16  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17  02110-1301, USA.
18 */
19 
20 #include "agentfilterproxymodel.h"
21 
22 #include "agenttypemodel.h"
23 #include "agentinstancemodel.h"
24 
25 #include <kdebug.h>
26 #include <kmimetype.h>
27 
28 #include <QtCore/QStringList>
29 
30 #include <boost/static_assert.hpp>
31 
32 using namespace Akonadi;
33 
34 // ensure the role numbers are equivalent for both source models
35 BOOST_STATIC_ASSERT( (int)AgentTypeModel::CapabilitiesRole == (int)AgentInstanceModel::CapabilitiesRole );
36 BOOST_STATIC_ASSERT( (int)AgentTypeModel::MimeTypesRole == (int)AgentInstanceModel::MimeTypesRole );
37 
41 class AgentFilterProxyModel::Private
42 {
43  public:
44  QStringList mimeTypes;
45  QStringList capabilities;
46  QStringList excludeCapabilities;
47 };
48 
49 AgentFilterProxyModel::AgentFilterProxyModel( QObject *parent )
50  : QSortFilterProxyModel( parent ),
51  d( new Private )
52 {
53  setDynamicSortFilter( true );
54 }
55 
56 AgentFilterProxyModel::~AgentFilterProxyModel()
57 {
58  delete d;
59 }
60 
61 void AgentFilterProxyModel::addMimeTypeFilter( const QString &mimeType )
62 {
63  d->mimeTypes << mimeType;
64  invalidateFilter();
65 }
66 
67 void AgentFilterProxyModel::addCapabilityFilter( const QString &capability )
68 {
69  d->capabilities << capability;
70  invalidateFilter();
71 }
72 
73 
74 void AgentFilterProxyModel::excludeCapabilities( const QString &capability )
75 {
76  d->excludeCapabilities << capability;
77  invalidateFilter();
78 }
79 
80 void AgentFilterProxyModel::clearFilters()
81 {
82  d->capabilities.clear();
83  d->mimeTypes.clear();
84  d->excludeCapabilities.clear();
85  invalidateFilter();
86 }
87 
88 bool AgentFilterProxyModel::filterAcceptsRow( int row, const QModelIndex& ) const
89 {
90  const QModelIndex index = sourceModel()->index( row, 0 );
91 
92  // First see if the name matches a set regexp filter.
93  if ( !filterRegExp().isEmpty() && !index.data().toString().contains( filterRegExp() ) ) {
94  return false;
95  }
96 
97  if ( !d->mimeTypes.isEmpty() ) {
98  bool found = false;
99  foreach ( const QString &mimeType, index.data( AgentTypeModel::MimeTypesRole ).toStringList() ) {
100  if ( d->mimeTypes.contains( mimeType ) ) {
101  found = true;
102  } else {
103  KMimeType::Ptr mimeTypePtr = KMimeType::mimeType( mimeType, KMimeType::ResolveAliases );
104  if ( !mimeTypePtr.isNull() ) {
105  foreach ( const QString &type, d->mimeTypes ) {
106  if ( mimeTypePtr->is( type ) ) {
107  found = true;
108  break;
109  }
110  }
111  }
112  }
113 
114  if ( found ) {
115  break;
116  }
117  }
118 
119  if ( !found ) {
120  return false;
121  }
122  }
123 
124  if ( !d->capabilities.isEmpty() ) {
125  bool found = false;
126  foreach ( const QString &capability, index.data( AgentTypeModel::CapabilitiesRole ).toStringList() ) {
127  if ( d->capabilities.contains( capability ) ) {
128  found = true;
129  break;
130  }
131  }
132 
133  if ( !found ) {
134  return false;
135  }
136 
137  if ( found && !d->excludeCapabilities.isEmpty() ) {
138  foreach ( const QString &capability, index.data( AgentTypeModel::CapabilitiesRole ).toStringList() ) {
139  if ( d->excludeCapabilities.contains( capability ) ) {
140  found = false;
141  break;
142  }
143  }
144 
145  if ( !found ) {
146  return false;
147  }
148  }
149  }
150 
151  return true;
152 }
153 
Akonadi::AgentFilterProxyModel::~AgentFilterProxyModel
~AgentFilterProxyModel()
Destroys the agent filter proxy model.
Definition: agentfilterproxymodel.cpp:56
Akonadi::AgentFilterProxyModel::addMimeTypeFilter
void addMimeTypeFilter(const QString &mimeType)
Accept agents supporting mimeType.
Definition: agentfilterproxymodel.cpp:61
Akonadi::AgentFilterProxyModel::excludeCapabilities
void excludeCapabilities(const QString &capability)
Excludes agents with the given capability.
Definition: agentfilterproxymodel.cpp:74
Akonadi::AgentFilterProxyModel::AgentFilterProxyModel
AgentFilterProxyModel(QObject *parent=0)
Create a new agent filter proxy model.
Definition: agentfilterproxymodel.cpp:49
Akonadi::AgentInstanceModel::CapabilitiesRole
A list of supported capabilities.
Definition: agentinstancemodel.h:63
Akonadi::AgentTypeModel::CapabilitiesRole
A list of supported capabilities.
Definition: agenttypemodel.h:63
Akonadi::AgentFilterProxyModel::addCapabilityFilter
void addCapabilityFilter(const QString &capability)
Accept agents with the given capability.
Definition: agentfilterproxymodel.cpp:67
Akonadi::AgentFilterProxyModel::clearFilters
void clearFilters()
Clear the filters ( mimeTypes &amp; capabilities ).
Definition: agentfilterproxymodel.cpp:80
Akonadi::AgentInstanceModel::MimeTypesRole
A list of supported mimetypes.
Definition: agentinstancemodel.h:62
Akonadi::AgentTypeModel::MimeTypesRole
A list of supported mimetypes.
Definition: agenttypemodel.h:62
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