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unity8/plugins/Unity/filters.cpp
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1/*
2 * Copyright (C) 2011, 2013 Canonical, Ltd.
3 *
4 * Authors:
5 * Florian Boucault <florian.boucault@canonical.com>
6 * Pawel Stolowski <pawel.stolowski@canonical.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 3.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
21// Self
22#include "filters.h"
24// Local
25#include "filter.h"
27// Qt
28#include <QDebug>
30Filters::Filters(unity::dash::Filters::Ptr unityFilters, QObject *parent) :
31 QAbstractListModel(parent), m_unityFilters(unityFilters)
33 for (unsigned int i=0; i<m_unityFilters->count(); i++) {
34 unity::dash::Filter::Ptr unityFilter = m_unityFilters->FilterAtIndex(i);
35 addFilter(unityFilter, i);
36 }
37 m_unityFilters->filter_added.connect(sigc::mem_fun(this, &Filters::onFilterAdded));
38 m_unityFilters->filter_changed.connect(sigc::mem_fun(this, &Filters::onFilterChanged));
39 m_unityFilters->filter_removed.connect(sigc::mem_fun(this, &Filters::onFilterRemoved));
42Filters::~Filters()
44 while (!m_filters.isEmpty()) {
45 delete m_filters.takeFirst();
46 }
49int Filters::rowCount(const QModelIndex& parent) const
51 Q_UNUSED(parent)
53 return m_unityFilters->count();
56QVariant Filters::data(const QModelIndex& index, int role) const
58 if (!index.isValid()) {
59 return QVariant();
60 }
62 Filter* filter = m_filters.at(index.row());
63 switch (role)
64 {
65 case Filters::RoleId:
66 return filter->id();
67 case Filters::RoleName:
68 case Qt::DisplayRole:
69 return filter->name();
70 case Filters::RoleIconHint:
71 return filter->iconHint();
72 case Filters::RoleRendererName:
73 return filter->rendererName();
74 case Filters::RoleVisible:
75 return filter->visible();
76 case Filters::RoleCollapsed:
77 return filter->collapsed();
78 case Filters::RoleFiltering:
79 return filter->filtering();
80 default:
81 break;
82 }
83 return QVariant();
86QHash<int, QByteArray> Filters::roleNames() const
88 QHash<int, QByteArray> roles;
89 roles[Filters::RoleId] = "id";
90 roles[Filters::RoleName] = "name";
91 roles[Filters::RoleIconHint] = "iconHint";
92 roles[Filters::RoleRendererName] = "rendererName";
93 roles[Filters::RoleVisible] = "visible";
94 roles[Filters::RoleCollapsed] = "collapsed";
95 roles[Filters::RoleFiltering] = "filtering";
96 return roles;
99Filter* Filters::getFilter(const QString& id) const
101 Q_FOREACH (Filter* filter, m_filters) {
102 if (filter->id() == id) {
103 return filter;
104 }
105 }
106 return nullptr;
109void Filters::onFilterAdded(unity::dash::Filter::Ptr unityFilter)
111 if (unityFilter == nullptr) {
112 return;
113 }
115 int index = m_filters.count();
116 addFilter(unityFilter, index);
119void Filters::onFilterChanged(unity::dash::Filter::Ptr unityFilter)
121 if (unityFilter == nullptr) {
122 return;
123 }
125 QModelIndex filterIndex = index(indexForFilter(unityFilter));
126 Q_EMIT dataChanged(filterIndex, filterIndex);
129void Filters::onFilterRemoved(unity::dash::Filter::Ptr unityFilter)
131 removeFilter(indexForFilter(unityFilter));
134void Filters::addFilter(unity::dash::Filter::Ptr unityFilter, int index)
136 beginInsertRows(QModelIndex(), index, index);
137 Filter* filter = Filter::newFromUnityFilter(unityFilter);
138 if (filter != nullptr) {
139 m_filters.insert(index, filter);
140 }
141 endInsertRows();
144void Filters::removeFilter(int index)
146 beginRemoveRows(QModelIndex(), index, index);
147 Filter* filter = m_filters.takeAt(index);
148 delete filter;
149 endRemoveRows();
152int Filters::indexForFilter(unity::dash::Filter::Ptr unityFilter)
154 for (int index=0; index<m_filters.count(); index++) {
155 if (m_filters[index]->hasUnityFilter(unityFilter)) {
156 return index;
157 }
158 }
159 qWarning() << "Filter" << QString::fromStdString(unityFilter->name()) << "not found in local cache.";
160 return -1;