1/***************************************************************************
2 * Copyright (C) 2005-2014 by the Quassel Project *
3 * devel@quassel-irc.org *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) version 3. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
19 ***************************************************************************/
20
21#include "bufferviewoverlayfilter.h"
22
23#include "bufferviewoverlay.h"
24#include "networkmodel.h"
25#include "types.h"
26
27BufferViewOverlayFilter::BufferViewOverlayFilter(QAbstractItemModel *model, BufferViewOverlay *overlay)
28 : QSortFilterProxyModel(model),
29 _overlay(0)
30{
31 setOverlay(overlay);
32 setSourceModel(model);
33
34 setDynamicSortFilter(true);
35}
36
37
38void BufferViewOverlayFilter::setOverlay(BufferViewOverlay *overlay)
39{
40 if (_overlay == overlay)
41 return;
42
43 if (_overlay) {
44 disconnect(_overlay, 0, this, 0);
45 }
46
47 _overlay = overlay;
48
49 if (!overlay) {
50 invalidate();
51 return;
52 }
53
54 connect(overlay, SIGNAL(destroyed()), this, SLOT(overlayDestroyed()));
55 connect(overlay, SIGNAL(hasChanged()), this, SLOT(invalidate()));
56 invalidate();
57}
58
59
60void BufferViewOverlayFilter::overlayDestroyed()
61{
62 setOverlay(0);
63}
64
65
66bool BufferViewOverlayFilter::filterAcceptsRow(int source_row, const QModelIndex &source_parent) const
67{
68 if (!_overlay)
69 return false;
70
71 QModelIndex source_bufferIndex = sourceModel()->index(source_row, 0, source_parent);
72
73 if (!source_bufferIndex.isValid()) {
74 qWarning() << "filterAcceptsRow has been called with an invalid Child";
75 return false;
76 }
77
78 NetworkModel::ItemType itemType = (NetworkModel::ItemType)sourceModel()->data(source_bufferIndex, NetworkModel::ItemTypeRole).toInt();
79
80 NetworkId networkId = sourceModel()->data(source_bufferIndex, NetworkModel::NetworkIdRole).value<NetworkId>();
81 if (!_overlay->networkIds().contains(networkId) && !_overlay->allNetworks()) {
82 return false;
83 }
84 else if (itemType == NetworkModel::NetworkItemType) {
85 // network items don't need further checks.
86 return true;
87 }
88
89 int activityLevel = sourceModel()->data(source_bufferIndex, NetworkModel::BufferActivityRole).toInt();
90 if (_overlay->minimumActivity() > activityLevel)
91 return false;
92
93 int bufferType = sourceModel()->data(source_bufferIndex, NetworkModel::BufferTypeRole).toInt();
94 if (!(_overlay->allowedBufferTypes() & bufferType))
95 return false;
96
97 BufferId bufferId = sourceModel()->data(source_bufferIndex, NetworkModel::BufferIdRole).value<BufferId>();
98 Q_ASSERT(bufferId.isValid());
99
100 if (_overlay->bufferIds().contains(bufferId))
101 return true;
102
103 if (_overlay->tempRemovedBufferIds().contains(bufferId))
104 return activityLevel > BufferInfo::OtherActivity;
105
106 if (_overlay->removedBufferIds().contains(bufferId))
107 return false;
108
109 // the buffer is not known to us
110 qDebug() << "BufferViewOverlayFilter::filterAcceptsRow()" << bufferId << "is unknown!";
111 return false;
112}
113