qcalendarwidget.h

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// Copyright (C) 2020 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
 
#ifndef QCALENDARWIDGET_H
#define QCALENDARWIDGET_H
 
#include <QtWidgets/qtwidgetsglobal.h>
#include <QtWidgets/qwidget.h>
#include <QtCore/qdatetime.h>
 
QT_REQUIRE_CONFIG(calendarwidget);
 
QT_BEGIN_NAMESPACE
 
class QDate;
class QTextCharFormat;
class QCalendarWidgetPrivate;
 
class Q_WIDGETS_EXPORT QCalendarWidget : public QWidget
{
    Q_OBJECT
    Q_ENUMS(Qt::DayOfWeek)
    Q_PROPERTY(QDate selectedDate READ selectedDate WRITE setSelectedDate)
    Q_PROPERTY(QDate minimumDate READ minimumDate WRITE setMinimumDate RESET clearMinimumDate)
    Q_PROPERTY(QDate maximumDate READ maximumDate WRITE setMaximumDate RESET clearMaximumDate)
    Q_PROPERTY(Qt::DayOfWeek firstDayOfWeek READ firstDayOfWeek WRITE setFirstDayOfWeek)
    Q_PROPERTY(bool gridVisible READ isGridVisible WRITE setGridVisible)
    Q_PROPERTY(SelectionMode selectionMode READ selectionMode WRITE setSelectionMode)
    Q_PROPERTY(HorizontalHeaderFormat horizontalHeaderFormat READ horizontalHeaderFormat
               WRITE setHorizontalHeaderFormat)
    Q_PROPERTY(VerticalHeaderFormat verticalHeaderFormat READ verticalHeaderFormat
               WRITE setVerticalHeaderFormat)
    Q_PROPERTY(bool navigationBarVisible READ isNavigationBarVisible WRITE setNavigationBarVisible)
    Q_PROPERTY(bool dateEditEnabled READ isDateEditEnabled WRITE setDateEditEnabled)
    Q_PROPERTY(int dateEditAcceptDelay READ dateEditAcceptDelay WRITE setDateEditAcceptDelay)
 
public:
    enum HorizontalHeaderFormat {
        NoHorizontalHeader,
        SingleLetterDayNames,
        ShortDayNames,
        LongDayNames
    };
    Q_ENUM(HorizontalHeaderFormat)
 
    enum VerticalHeaderFormat {
        NoVerticalHeader,
        ISOWeekNumbers
    };
    Q_ENUM(VerticalHeaderFormat)
 
    enum SelectionMode {
        NoSelection,
        SingleSelection
    };
    Q_ENUM(SelectionMode)
 
    explicit QCalendarWidget(QWidget *parent = nullptr);
    ~QCalendarWidget();
 
    virtual QSize sizeHint() const override;
    virtual QSize minimumSizeHint() const override;
 
    QDate selectedDate() const;
 
    int yearShown() const;
    int monthShown() const;
 
    QDate minimumDate() const;
    void setMinimumDate(QDate date);
    void clearMinimumDate();
 
    QDate maximumDate() const;
    void setMaximumDate(QDate date);
    void clearMaximumDate();
 
    Qt::DayOfWeek firstDayOfWeek() const;
    void setFirstDayOfWeek(Qt::DayOfWeek dayOfWeek);
 
    bool isNavigationBarVisible() const;
    bool isGridVisible() const;
 
    QCalendar calendar() const;
    void setCalendar(QCalendar calendar);
 
    SelectionMode selectionMode() const;
    void setSelectionMode(SelectionMode mode);
 
    HorizontalHeaderFormat horizontalHeaderFormat() const;
    void setHorizontalHeaderFormat(HorizontalHeaderFormat format);
 
    VerticalHeaderFormat verticalHeaderFormat() const;
    void setVerticalHeaderFormat(VerticalHeaderFormat format);
 
    QTextCharFormat headerTextFormat() const;
    void setHeaderTextFormat(const QTextCharFormat &format);
 
    QTextCharFormat weekdayTextFormat(Qt::DayOfWeek dayOfWeek) const;
    void setWeekdayTextFormat(Qt::DayOfWeek dayOfWeek, const QTextCharFormat &format);
 
    QMap<QDate, QTextCharFormat> dateTextFormat() const;
    QTextCharFormat dateTextFormat(QDate date) const;
    void setDateTextFormat(QDate date, const QTextCharFormat &format);
 
    bool isDateEditEnabled() const;
    void setDateEditEnabled(bool enable);
 
    int dateEditAcceptDelay() const;
    void setDateEditAcceptDelay(int delay);
 
protected:
    bool event(QEvent *event) override;
    bool eventFilter(QObject *watched, QEvent *event) override;
    void mousePressEvent(QMouseEvent *event) override;
    void resizeEvent(QResizeEvent * event) override;
    void keyPressEvent(QKeyEvent * event) override;
 
    virtual void paintCell(QPainter *painter, const QRect &rect, QDate date) const;
    void updateCell(QDate date);
    void updateCells();
 
public Q_SLOTS:
    void setSelectedDate(QDate date);
    void setDateRange(QDate min, QDate max);
    void setCurrentPage(int year, int month);
    void setGridVisible(bool show);
    void setNavigationBarVisible(bool visible);
    void showNextMonth();
    void showPreviousMonth();
    void showNextYear();
    void showPreviousYear();
    void showSelectedDate();
    void showToday();
 
Q_SIGNALS:
    void selectionChanged();
    void clicked(QDate date);
    void activated(QDate date);
    void currentPageChanged(int year, int month);
 
private:
    Q_DECLARE_PRIVATE(QCalendarWidget)
    Q_DISABLE_COPY(QCalendarWidget)
 
    Q_PRIVATE_SLOT(d_func(), void _q_slotShowDate(QDate date))
    Q_PRIVATE_SLOT(d_func(), void _q_slotChangeDate(QDate date))
    Q_PRIVATE_SLOT(d_func(), void _q_slotChangeDate(QDate date, bool changeMonth))
    Q_PRIVATE_SLOT(d_func(), void _q_editingFinished())
    Q_PRIVATE_SLOT(d_func(), void _q_prevMonthClicked())
    Q_PRIVATE_SLOT(d_func(), void _q_nextMonthClicked())
    Q_PRIVATE_SLOT(d_func(), void _q_yearEditingFinished())
    Q_PRIVATE_SLOT(d_func(), void _q_yearClicked())
    Q_PRIVATE_SLOT(d_func(), void _q_monthChanged(QAction *act))
 
};
 
QT_END_NAMESPACE
 
#endif // QCALENDARWIDGET_H