Unity 8
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visibleindicatorsmodel.cpp
1 /*
2  * Copyright (C) 2012, 2013 Canonical, Ltd.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; version 3.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
15  */
16 
17 // self
18 #include "visibleindicatorsmodel.h"
19 #include "indicators.h"
20 
21 VisibleIndicatorsModel::VisibleIndicatorsModel(QObject *parent)
22  : QIdentityProxyModel(parent),
23  m_inserting(false)
24 {
25  QObject::connect(this, SIGNAL(rowsAboutToBeInserted(QModelIndex, int, int)), this, SLOT(onBeginRowInserted(QModelIndex, int, int)));
26  QObject::connect(this, SIGNAL(rowsInserted(QModelIndex, int, int)), this, SLOT(onRowInserted(QModelIndex, int, int)));
27 }
28 
29 QHash<int, QByteArray> VisibleIndicatorsModel::roleNames() const
30 {
31  static QHash<int, QByteArray> roles;
32  if (roles.isEmpty())
33  {
34  roles[IndicatorsModelRole::Identifier] = "identifier";
35  roles[IndicatorsModelRole::Position] = "position";
36  roles[IndicatorsModelRole::WidgetSource] = "widgetSource";
37  roles[IndicatorsModelRole::PageSource] = "pageSource";
38  roles[IndicatorsModelRole::IndicatorProperties] = "indicatorProperties";
39  roles[IndicatorsModelRole::IsVisible] = "isVisible";
40  }
41  return roles;
42 }
43 
44 void VisibleIndicatorsModel::setSourceModel(QAbstractItemModel *model)
45 {
46  if (sourceModel() != model) {
47  QIdentityProxyModel::setSourceModel(model);
48  Q_EMIT modelChanged();
49  }
50 }
51 
52 QVariantMap VisibleIndicatorsModel::visible() const
53 {
54  return m_visible;
55 }
56 
57 void VisibleIndicatorsModel::onBeginRowInserted(const QModelIndex&, int, int)
58 {
59  m_inserting = true;
60 }
61 
62 void VisibleIndicatorsModel::onRowInserted(const QModelIndex&, int, int)
63 {
64  m_inserting = false;
65 }
66 
67 void VisibleIndicatorsModel::setVisible(const QVariantMap& visible)
68 {
69  if (m_visible != visible) {
70  m_visible = visible;
71  Q_EMIT visibleChanged();
72 
73  // need to tell the view that the visible data has changed.
74  if (!m_inserting && rowCount() > 0) {
75  Q_EMIT dataChanged(index(0, 0), index(rowCount() - 1, 0), QVector<int>() << IndicatorsModelRole::IsVisible);
76  }
77  }
78 }
79 
80 QVariant VisibleIndicatorsModel::data(const QModelIndex &index, int role) const
81 {
82  if (role != IndicatorsModelRole::IsVisible) {
83  return QIdentityProxyModel::data(index, role);
84  }
85 
86  if (!index.isValid()) {
87  return false;
88  }
89 
90  QString ident = QIdentityProxyModel::data(index, IndicatorsModelRole::Identifier).toString();
91  return m_visible.value(ident, false).toBool();
92 }