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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Labs Calendar module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qquickweeknumbermodel_p.h"
#include <QtCore/private/qabstractitemmodel_p.h>
#include <QtCore/qdatetime.h>
QT_BEGIN_NAMESPACE
class QQuickWeekNumberModelPrivate : public QAbstractItemModelPrivate
{
Q_DECLARE_PUBLIC(QQuickWeekNumberModel)
public:
QQuickWeekNumberModelPrivate() : month(-1), year(-1)
{
QDate date = QDate::currentDate();
init(date.month(), date.year(), locale);
month = date.month();
year = date.year();
}
void init(int month, int year, const QLocale &locale = QLocale());
static QDate calculateFirst(int month, int year, const QLocale &locale);
int month;
int year;
QLocale locale;
int weekNumbers[6];
};
void QQuickWeekNumberModelPrivate::init(int m, int y, const QLocale &l)
{
Q_Q(QQuickWeekNumberModel);
if (m == month && y == year && l.firstDayOfWeek() == locale.firstDayOfWeek())
return;
// The actual first (1st) day of the month.
QDate firstDayOfMonthDate(y, m, 1);
int difference = ((firstDayOfMonthDate.dayOfWeek() - l.firstDayOfWeek()) + 7) % 7;
// The first day to display should never be the 1st of the month, as we want some days from
// the previous month to be visible.
if (difference == 0)
difference += 7;
for (int i = 0; i < 6; ++i)
weekNumbers[i] = firstDayOfMonthDate.addDays(i * 7 - difference).weekNumber();
if (q) // null at construction
emit q->dataChanged(q->index(0, 0), q->index(5, 0));
}
QQuickWeekNumberModel::QQuickWeekNumberModel(QObject *parent) :
QAbstractListModel(*(new QQuickWeekNumberModelPrivate), parent)
{
}
int QQuickWeekNumberModel::month() const
{
Q_D(const QQuickWeekNumberModel);
return d->month;
}
void QQuickWeekNumberModel::setMonth(int month)
{
Q_D(QQuickWeekNumberModel);
if (d->month != month) {
d->init(month, d->year, d->locale);
d->month = month;
emit monthChanged();
}
}
int QQuickWeekNumberModel::year() const
{
Q_D(const QQuickWeekNumberModel);
return d->year;
}
void QQuickWeekNumberModel::setYear(int year)
{
Q_D(QQuickWeekNumberModel);
if (d->year != year) {
d->init(d->month, year, d->locale);
d->year = year;
emit yearChanged();
}
}
QLocale QQuickWeekNumberModel::locale() const
{
Q_D(const QQuickWeekNumberModel);
return d->locale;
}
void QQuickWeekNumberModel::setLocale(const QLocale &locale)
{
Q_D(QQuickWeekNumberModel);
if (d->locale != locale) {
d->init(d->month, d->year, locale);
d->locale = locale;
emit localeChanged();
}
}
int QQuickWeekNumberModel::weekNumberAt(int index) const
{
Q_D(const QQuickWeekNumberModel);
if (index < 0 || index > 5)
return -1;
return d->weekNumbers[index];
}
int QQuickWeekNumberModel::indexOf(int weekNumber) const
{
Q_D(const QQuickWeekNumberModel);
if (weekNumber < d->weekNumbers[0] || weekNumber > d->weekNumbers[5])
return -1;
return weekNumber - d->weekNumbers[0];
}
QVariant QQuickWeekNumberModel::data(const QModelIndex &index, int role) const
{
if (role == WeekNumberRole) {
int weekNumber = weekNumberAt(index.row());
if (weekNumber != -1)
return weekNumber;
}
return QVariant();
}
int QQuickWeekNumberModel::rowCount(const QModelIndex &parent) const
{
if (parent.isValid())
return 0;
return 6;
}
QHash<int, QByteArray> QQuickWeekNumberModel::roleNames() const
{
QHash<int, QByteArray> roles;
roles[WeekNumberRole] = QByteArrayLiteral("weekNumber");
return roles;
}
QT_END_NAMESPACE
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