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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#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), weekNumbers{}
{
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
#include "moc_qquickweeknumbermodel_p.cpp"
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