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Diffstat (limited to 'src/calendar/qquickmonthmodel.cpp')
| -rw-r--r-- | src/calendar/qquickmonthmodel.cpp | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/src/calendar/qquickmonthmodel.cpp b/src/calendar/qquickmonthmodel.cpp new file mode 100644 index 00000000..61185d57 --- /dev/null +++ b/src/calendar/qquickmonthmodel.cpp @@ -0,0 +1,224 @@ +/**************************************************************************** +** +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the Qt Quick 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 "qquickmonthmodel_p.h" + +#include <QtCore/private/qabstractitemmodel_p.h> + +namespace { + static const int daysInAWeek = 7; + static const int weeksOnACalendarMonth = 6; + static const int daysOnACalendarMonth = daysInAWeek * weeksOnACalendarMonth; +} + +QT_BEGIN_NAMESPACE + +class QQuickMonthModelPrivate : public QAbstractItemModelPrivate +{ + Q_DECLARE_PUBLIC(QQuickMonthModel) + +public: + QQuickMonthModelPrivate() : dates(daysOnACalendarMonth) + { + QDate date = QDate::currentDate(); + month = date.month(); + year = date.year(); + } + + bool populate(int month, int year, const QLocale &locale, bool force = false); + + int month; + int year; + QString title; + QLocale locale; + QVector<QDate> dates; +}; + +bool QQuickMonthModelPrivate::populate(int m, int y, const QLocale &l, bool force) +{ + Q_Q(QQuickMonthModel); + if (!force && m == month && y == year && l.firstDayOfWeek() == locale.firstDayOfWeek()) + return false; + + // 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; + QDate firstDateToDisplay = firstDayOfMonthDate.addDays(-difference); + + for (int i = 0; i < daysOnACalendarMonth; ++i) + dates[i] = firstDateToDisplay.addDays(i); + + q->setTitle(l.standaloneMonthName(m) + QStringLiteral(" ") + QString::number(y)); + + return true; +} + +QQuickMonthModel::QQuickMonthModel(QObject *parent) : + QAbstractListModel(*(new QQuickMonthModelPrivate), parent) +{ + Q_D(QQuickMonthModel); + d->populate(d->month, d->year, d->locale, true); +} + +int QQuickMonthModel::month() const +{ + Q_D(const QQuickMonthModel); + return d->month; +} + +void QQuickMonthModel::setMonth(int month) +{ + Q_D(QQuickMonthModel); + if (d->month != month) { + if (d->populate(month, d->year, d->locale)) + emit dataChanged(index(0, 0), index(daysOnACalendarMonth - 1, 0)); + d->month = month; + emit monthChanged(); + } +} + +int QQuickMonthModel::year() const +{ + Q_D(const QQuickMonthModel); + return d->year; +} + +void QQuickMonthModel::setYear(int year) +{ + Q_D(QQuickMonthModel); + if (d->year != year) { + if (d->populate(d->month, year, d->locale)) + emit dataChanged(index(0, 0), index(daysOnACalendarMonth - 1, 0)); + d->year = year; + emit yearChanged(); + } +} + +QLocale QQuickMonthModel::locale() const +{ + Q_D(const QQuickMonthModel); + return d->locale; +} + +void QQuickMonthModel::setLocale(const QLocale &locale) +{ + Q_D(QQuickMonthModel); + if (d->locale != locale) { + if (d->populate(d->month, d->year, locale)) + emit dataChanged(index(0, 0), index(daysOnACalendarMonth - 1, 0)); + d->locale = locale; + emit localeChanged(); + } +} + +QString QQuickMonthModel::title() const +{ + Q_D(const QQuickMonthModel); + return d->title; +} + +void QQuickMonthModel::setTitle(const QString &title) +{ + Q_D(QQuickMonthModel); + if (d->title != title) { + d->title = title; + emit titleChanged(); + } +} + +QDate QQuickMonthModel::dateAt(int index) const +{ + Q_D(const QQuickMonthModel); + return d->dates.value(index); +} + +int QQuickMonthModel::indexOf(const QDate &date) const +{ + Q_D(const QQuickMonthModel); + if (date < d->dates.first() || date > d->dates.last()) + return -1; + return qMax(qint64(0), d->dates.first().daysTo(date)); +} + +QVariant QQuickMonthModel::data(const QModelIndex &index, int role) const +{ + Q_D(const QQuickMonthModel); + if (index.isValid() && index.row() < daysOnACalendarMonth) { + const QDate date = d->dates.at(index.row()); + switch (role) { + case DateRole: + return date; + case DayRole: + return date.day(); + case TodayRole: + return date == QDate::currentDate(); + case WeekNumberRole: + return date.weekNumber(); + case MonthRole: + return date.month(); + case YearRole: + return date.year(); + default: + break; + } + } + return QVariant(); +} + +int QQuickMonthModel::rowCount(const QModelIndex &parent) const +{ + if (parent.isValid()) + return 0; + return daysOnACalendarMonth; +} + +QHash<int, QByteArray> QQuickMonthModel::roleNames() const +{ + QHash<int, QByteArray> roles; + roles[DateRole] = QByteArrayLiteral("date"); + roles[DayRole] = QByteArrayLiteral("day"); + roles[TodayRole] = QByteArrayLiteral("today"); + roles[WeekNumberRole] = QByteArrayLiteral("weekNumber"); + roles[MonthRole] = QByteArrayLiteral("month"); + roles[YearRole] = QByteArrayLiteral("year"); + return roles; +} + +QT_END_NAMESPACE |