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Diffstat (limited to 'src/calendar/qquickcalendarmodel.cpp')
| -rw-r--r-- | src/calendar/qquickcalendarmodel.cpp | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/src/calendar/qquickcalendarmodel.cpp b/src/calendar/qquickcalendarmodel.cpp new file mode 100644 index 00000000..c1386ed0 --- /dev/null +++ b/src/calendar/qquickcalendarmodel.cpp @@ -0,0 +1,195 @@ +/**************************************************************************** +** +** 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 "qquickcalendarmodel_p.h" + +#include <QtCore/private/qabstractitemmodel_p.h> + +QT_BEGIN_NAMESPACE + +class QQuickCalendarModelPrivate : public QAbstractItemModelPrivate +{ + Q_DECLARE_PUBLIC(QQuickCalendarModel) + +public: + QQuickCalendarModelPrivate() : complete(false), + from(1,1,1), to(275759, 9, 25), count(0) + { + } + + static int getCount(const QDate& from, const QDate &to); + + void populate(const QDate &from, const QDate &to, bool force = false); + + bool complete; + QDate from; + QDate to; + int count; +}; + +int QQuickCalendarModelPrivate::getCount(const QDate& from, const QDate &to) +{ + QDate f(from.year(), from.month(), 1); + QDate t(to.year(), to.month(), to.daysInMonth()); + QDate r = QDate(1, 1, 1).addDays(f.daysTo(t)); + int years = r.year() - 1; + int months = r.month() - 1; + return 12 * years + months + (r.day() / t.day()); +} + +void QQuickCalendarModelPrivate::populate(const QDate &f, const QDate &t, bool force) +{ + Q_Q(QQuickCalendarModel); + if (!force && f == from && t == to) + return; + + int c = getCount(from, to); + if (c != count) { + q->beginResetModel(); + count = c; + q->endResetModel(); + emit q->countChanged(); + } else { + emit q->dataChanged(q->index(0, 0), q->index(c - 1, 0)); + } +} + +QQuickCalendarModel::QQuickCalendarModel(QObject *parent) : + QAbstractListModel(*(new QQuickCalendarModelPrivate), parent) +{ +} + +QDate QQuickCalendarModel::from() const +{ + Q_D(const QQuickCalendarModel); + return d->from; +} + +void QQuickCalendarModel::setFrom(const QDate &from) +{ + Q_D(QQuickCalendarModel); + if (d->from != from) { + if (d->complete) + d->populate(from, d->to); + d->from = from; + emit fromChanged(); + } +} + +QDate QQuickCalendarModel::to() const +{ + Q_D(const QQuickCalendarModel); + return d->to; +} + +void QQuickCalendarModel::setTo(const QDate &to) +{ + Q_D(QQuickCalendarModel); + if (d->to != to) { + if (d->complete) + d->populate(d->from, to); + d->to = to; + emit fromChanged(); + } +} + +int QQuickCalendarModel::monthAt(int index) const +{ + Q_D(const QQuickCalendarModel); + return d->from.addMonths(index).month(); +} + +int QQuickCalendarModel::yearAt(int index) const +{ + Q_D(const QQuickCalendarModel); + return d->from.addMonths(index).year(); +} + +int QQuickCalendarModel::indexOf(const QDate &date) const +{ + return indexOf(date.year(), date.month()); +} + +int QQuickCalendarModel::indexOf(int year, int month) const +{ + Q_D(const QQuickCalendarModel); + return d->getCount(d->from, QDate(year, month, 1)) - 1; +} + +QVariant QQuickCalendarModel::data(const QModelIndex &index, int role) const +{ + Q_D(const QQuickCalendarModel); + if (index.isValid() && index.row() < d->count) { + switch (role) { + case MonthRole: + return monthAt(index.row()); + case YearRole: + return yearAt(index.row()); + default: + break; + } + } + return QVariant(); +} + +int QQuickCalendarModel::rowCount(const QModelIndex &parent) const +{ + Q_D(const QQuickCalendarModel); + if (!parent.isValid()) + return d->count; + return 0; +} + +QHash<int, QByteArray> QQuickCalendarModel::roleNames() const +{ + QHash<int, QByteArray> roles; + roles[MonthRole] = QByteArrayLiteral("month"); + roles[YearRole] = QByteArrayLiteral("year"); + return roles; +} + +void QQuickCalendarModel::classBegin() +{ +} + +void QQuickCalendarModel::componentComplete() +{ + Q_D(QQuickCalendarModel); + d->complete = true; + d->populate(d->from, d->to, true); +} + +QT_END_NAMESPACE |