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36
37#include "qquickweeknumbermodel_p.h"
38
39#include <QtCore/private/qabstractitemmodel_p.h>
40#include <QtCore/qdatetime.h>
41
42QT_BEGIN_NAMESPACE
43
44class QQuickWeekNumberModelPrivate : public QAbstractItemModelPrivate
45{
46 Q_DECLARE_PUBLIC(QQuickWeekNumberModel)
47
48public:
49 QQuickWeekNumberModelPrivate() : month(-1), year(-1), weekNumbers{}
50 {
51 QDate date = QDate::currentDate();
52 init(month: date.month(), year: date.year(), locale);
53 month = date.month();
54 year = date.year();
55 }
56
57 void init(int month, int year, const QLocale &locale = QLocale());
58 static QDate calculateFirst(int month, int year, const QLocale &locale);
59
60 int month;
61 int year;
62 QLocale locale;
63 int weekNumbers[6];
64};
65
66void QQuickWeekNumberModelPrivate::init(int m, int y, const QLocale &l)
67{
68 Q_Q(QQuickWeekNumberModel);
69 if (m == month && y == year && l.firstDayOfWeek() == locale.firstDayOfWeek())
70 return;
71
72 // The actual first (1st) day of the month.
73 QDate firstDayOfMonthDate(y, m, 1);
74 int difference = ((firstDayOfMonthDate.dayOfWeek() - l.firstDayOfWeek()) + 7) % 7;
75 // The first day to display should never be the 1st of the month, as we want some days from
76 // the previous month to be visible.
77 if (difference == 0)
78 difference += 7;
79
80 for (int i = 0; i < 6; ++i)
81 weekNumbers[i] = firstDayOfMonthDate.addDays(days: i * 7 - difference).weekNumber();
82
83 if (q) // null at construction
84 emit q->dataChanged(topLeft: q->index(row: 0, column: 0), bottomRight: q->index(row: 5, column: 0));
85}
86
87QQuickWeekNumberModel::QQuickWeekNumberModel(QObject *parent) :
88 QAbstractListModel(*(new QQuickWeekNumberModelPrivate), parent)
89{
90}
91
92int QQuickWeekNumberModel::month() const
93{
94 Q_D(const QQuickWeekNumberModel);
95 return d->month;
96}
97
98void QQuickWeekNumberModel::setMonth(int month)
99{
100 Q_D(QQuickWeekNumberModel);
101 if (d->month != month) {
102 d->init(m: month, y: d->year, l: d->locale);
103 d->month = month;
104 emit monthChanged();
105 }
106}
107
108int QQuickWeekNumberModel::year() const
109{
110 Q_D(const QQuickWeekNumberModel);
111 return d->year;
112}
113
114void QQuickWeekNumberModel::setYear(int year)
115{
116 Q_D(QQuickWeekNumberModel);
117 if (d->year != year) {
118 d->init(m: d->month, y: year, l: d->locale);
119 d->year = year;
120 emit yearChanged();
121 }
122}
123
124QLocale QQuickWeekNumberModel::locale() const
125{
126 Q_D(const QQuickWeekNumberModel);
127 return d->locale;
128}
129
130void QQuickWeekNumberModel::setLocale(const QLocale &locale)
131{
132 Q_D(QQuickWeekNumberModel);
133 if (d->locale != locale) {
134 d->init(m: d->month, y: d->year, l: locale);
135 d->locale = locale;
136 emit localeChanged();
137 }
138}
139
140int QQuickWeekNumberModel::weekNumberAt(int index) const
141{
142 Q_D(const QQuickWeekNumberModel);
143 if (index < 0 || index > 5)
144 return -1;
145 return d->weekNumbers[index];
146}
147
148int QQuickWeekNumberModel::indexOf(int weekNumber) const
149{
150 Q_D(const QQuickWeekNumberModel);
151 if (weekNumber < d->weekNumbers[0] || weekNumber > d->weekNumbers[5])
152 return -1;
153 return weekNumber - d->weekNumbers[0];
154}
155
156QVariant QQuickWeekNumberModel::data(const QModelIndex &index, int role) const
157{
158 if (role == WeekNumberRole) {
159 int weekNumber = weekNumberAt(index: index.row());
160 if (weekNumber != -1)
161 return weekNumber;
162 }
163 return QVariant();
164}
165
166int QQuickWeekNumberModel::rowCount(const QModelIndex &parent) const
167{
168 if (parent.isValid())
169 return 0;
170 return 6;
171}
172
173QHash<int, QByteArray> QQuickWeekNumberModel::roleNames() const
174{
175 QHash<int, QByteArray> roles;
176 roles[WeekNumberRole] = QByteArrayLiteral("weekNumber");
177 return roles;
178}
179
180QT_END_NAMESPACE
181

source code of qtquickcontrols2/src/imports/calendar/qquickweeknumbermodel.cpp