calendar_header.dart
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// Copyright 2019 Aleksander Woźniak
// SPDX-License-Identifier: Apache-2.0
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:intl/intl.dart';
import 'package:table_calendar/src/customization/header_style.dart';
import 'package:table_calendar/src/shared/utils.dart'
show CalendarFormat, DayBuilder;
import 'package:table_calendar/src/widgets/custom_icon_button.dart';
import 'package:table_calendar/src/widgets/format_button.dart';
class CalendarHeader extends StatelessWidget {
final dynamic locale;
final DateTime focusedMonth;
final CalendarFormat calendarFormat;
final HeaderStyle headerStyle;
final VoidCallback onLeftChevronTap;
final VoidCallback onRightChevronTap;
final VoidCallback onHeaderTap;
final VoidCallback onHeaderLongPress;
final ValueChanged<CalendarFormat> onFormatButtonTap;
final Map<CalendarFormat, String> availableCalendarFormats;
final DayBuilder? headerTitleBuilder;
final VoidCallback selectPreviousYear;
final VoidCallback selectNextYear;
const CalendarHeader({
super.key,
this.locale,
required this.focusedMonth,
required this.calendarFormat,
required this.headerStyle,
required this.onLeftChevronTap,
required this.onRightChevronTap,
required this.onHeaderTap,
required this.onHeaderLongPress,
required this.onFormatButtonTap,
required this.availableCalendarFormats,
this.headerTitleBuilder,
required this.selectPreviousYear,
required this.selectNextYear,
});
// void _selectPreviousYear() {
// setState(() {
// widget.calendarController.previousPageYear();
// });
// }
// void _selectNextYear() {
// setState(() {
// widget.calendarController.nextPageYear();
// });
// }
@override
Widget build(BuildContext context) {
final text = headerStyle.titleTextFormatter?.call(focusedMonth, locale) ??
DateFormat.yMMMM(locale).format(focusedMonth);
return Container(
decoration: headerStyle.decoration,
margin: headerStyle.headerMargin,
padding: headerStyle.headerPadding,
child: Row(
children: [
InkWell(
onTap: selectPreviousYear,
child: Container(
padding: EdgeInsets.only(left: 20),
// color: Colors.red,
child: Image.asset(
'assets/date_y_l.png',
width: 16,
height: 45,
))),
if (headerStyle.leftChevronVisible)
CustomIconButton(
icon: headerStyle.leftChevronIcon,
onTap: onLeftChevronTap,
margin: headerStyle.leftChevronMargin,
padding: headerStyle.leftChevronPadding,
),
Expanded(
child: headerTitleBuilder?.call(context, focusedMonth) ??
GestureDetector(
onTap: onHeaderTap,
onLongPress: onHeaderLongPress,
child: Text(
text,
style: headerStyle.titleTextStyle,
textAlign: headerStyle.titleCentered
? TextAlign.center
: TextAlign.start,
),
),
),
if (headerStyle.formatButtonVisible &&
availableCalendarFormats.length > 1)
Padding(
padding: const EdgeInsets.only(left: 8.0),
child: FormatButton(
onTap: onFormatButtonTap,
availableCalendarFormats: availableCalendarFormats,
calendarFormat: calendarFormat,
decoration: headerStyle.formatButtonDecoration,
padding: headerStyle.formatButtonPadding,
textStyle: headerStyle.formatButtonTextStyle,
showsNextFormat: headerStyle.formatButtonShowsNext,
),
),
if (headerStyle.rightChevronVisible)
CustomIconButton(
icon: headerStyle.rightChevronIcon,
onTap: onRightChevronTap,
margin: headerStyle.rightChevronMargin,
padding: headerStyle.rightChevronPadding,
),
InkWell(
onTap: selectNextYear,
child: Container(
padding: EdgeInsets.only(right: 20),
// color: Colors.red,
child: Image.asset(
'assets/date_y_r.png',
width: 12,
height: 45,
))),
],
),
);
}
}