diff options
Diffstat (limited to 'examples/quickcontrols2/eventcalendar/eventmodel.cpp')
-rw-r--r-- | examples/quickcontrols2/eventcalendar/eventmodel.cpp | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/examples/quickcontrols2/eventcalendar/eventmodel.cpp b/examples/quickcontrols2/eventcalendar/eventmodel.cpp new file mode 100644 index 0000000000..48fdc24065 --- /dev/null +++ b/examples/quickcontrols2/eventcalendar/eventmodel.cpp @@ -0,0 +1,135 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "eventmodel.h" + +#include "sqleventdatabase.h" + +EventModel::EventModel(QObject *parent) + : QAbstractListModel(parent) +{ +} + +SqlEventDatabase *EventModel::eventDatabase() +{ + return m_eventDatabase; +} + +void EventModel::setEventDatabase(SqlEventDatabase *eventDatabase) +{ + if (eventDatabase == m_eventDatabase) + return; + + m_eventDatabase = eventDatabase; + repopulate(); + emit eventDatabaseChanged(); +} + +QDate EventModel::date() const +{ + return m_date; +} + +void EventModel::setDate(const QDate &date) +{ + if (date == m_date) + return; + + m_date = date; + repopulate(); + emit dateChanged(); +} + +int EventModel::rowCount(const QModelIndex &) const +{ + return m_events.size(); +} + +QVariant EventModel::data(const QModelIndex &index, int role) const +{ + if (!checkIndex(index, CheckIndexOption::IndexIsValid)) + return QVariant(); + + switch (role) { + case NameRole: return m_events.at(index.row()).name; + case StartDateRole: return m_events.at(index.row()).startDate; + case EndDateRole: return m_events.at(index.row()).endDate; + default: return QVariant(); + } +} + +QHash<int, QByteArray> EventModel::roleNames() const +{ + static const QHash<int, QByteArray> roles { + { NameRole, "name" }, + { StartDateRole, "startDate" }, + { EndDateRole, "endDate" } + }; + return roles; +} + +bool EventModel::isValid() const +{ + return m_eventDatabase && !m_date.isNull(); +} + +void EventModel::repopulate() +{ + beginResetModel(); + + if (!m_eventDatabase || m_date.isNull()) { + m_events.clear(); + return; + } + + m_events = m_eventDatabase->eventsForDate(m_date); + + endResetModel(); +} |