git.iko.soy/unity8
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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>
30// libunity-core
31#include <UnityCore/Filters.h>
33Filters::Filters(unity::dash::Filters::Ptr unityFilters, QObject *parent) :
34 QAbstractListModel(parent), m_unityFilters(unityFilters)
36 for (unsigned int i=0; i<m_unityFilters->count(); i++) {
37 unity::dash::Filter::Ptr unityFilter = m_unityFilters->FilterAtIndex(i);
38 addFilter(unityFilter, i);
39 }
40 m_unityFilters->filter_added.connect(sigc::mem_fun(this, &Filters::onFilterAdded));
41 m_unityFilters->filter_changed.connect(sigc::mem_fun(this, &Filters::onFilterChanged));
42 m_unityFilters->filter_removed.connect(sigc::mem_fun(this, &Filters::onFilterRemoved));
45Filters::~Filters()
47 while (!m_filters.isEmpty()) {
48 delete m_filters.takeFirst();
49 }
52int Filters::rowCount(const QModelIndex& parent) const
54 Q_UNUSED(parent)
56 return m_unityFilters->count();
59QVariant Filters::data(const QModelIndex& index, int role) const
61 Q_UNUSED(role)
63 if (!index.isValid()) {
64 return QVariant();
65 }
67 if (role == Filters::RoleFilter) {
68 Filter* filter = m_filters.at(index.row());
69 return QVariant::fromValue(filter);
70 } else {
71 return QVariant();
72 }
75QHash<int, QByteArray> Filters::roleNames() const
77 QHash<int, QByteArray> roles;
78 roles[Filters::RoleFilter] = "filter";
79 return roles;
82Filter* Filters::getFilter(const QString& id) const
84 Q_FOREACH (Filter* filter, m_filters) {
85 if (filter->id() == id) {
86 return filter;
87 }
88 }
89 return nullptr;
92void Filters::onFilterAdded(unity::dash::Filter::Ptr unityFilter)
94 if (unityFilter == nullptr) {
95 return;
96 }
98 int index = m_filters.count();
99 addFilter(unityFilter, index);
102void Filters::onFilterChanged(unity::dash::Filter::Ptr unityFilter)
104 if (unityFilter == nullptr) {
105 return;
106 }
108 QModelIndex filterIndex = index(indexForFilter(unityFilter));
109 Q_EMIT dataChanged(filterIndex, filterIndex);
112void Filters::onFilterRemoved(unity::dash::Filter::Ptr unityFilter)
114 removeFilter(indexForFilter(unityFilter));
117void Filters::addFilter(unity::dash::Filter::Ptr unityFilter, int index)
119 beginInsertRows(QModelIndex(), index, index);
120 Filter* filter = Filter::newFromUnityFilter(unityFilter);
121 m_filters.insert(index, filter);
122 endInsertRows();
125void Filters::removeFilter(int index)
127 beginRemoveRows(QModelIndex(), index, index);
128 Filter* filter = m_filters.takeAt(index);
129 delete filter;
130 endRemoveRows();
133int Filters::indexForFilter(unity::dash::Filter::Ptr unityFilter)
135 // TODO: use a map
136 int index;
137 for (index=0; index<m_filters.count(); index++) {
138 if (m_filters[index]->hasUnityFilter(unityFilter)) {
139 return index;
140 }
141 }
142 qWarning() << "Filter" << QString::fromStdString(unityFilter->name()) << "not found in local cache.";
143 return -1;
147#include "filters.moc"