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Started prototyping the year value calculation instruction page on the MonthValuesPage

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BroodjeAap 2020-12-06 16:15:33 +01:00
parent ff95e415d2
commit d3f55cb9ae
1 changed files with 115 additions and 26 deletions
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141
lib/pages/MonthValuesPage.dart
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@ -1,32 +1,10 @@
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart'; import 'package:flutter/material.dart';
import 'package:ohthatsa/other/AppDrawer.dart'; import 'package:ohthatsa/other/AppDrawer.dart';
import 'package:ohthatsa/util/Months.dart'; import 'package:ohthatsa/util/Months.dart';
class MonthValuesPage extends StatelessWidget { class MonthValuesPage extends StatelessWidget {
final monthTableRowTextStyle = TextStyle(fontSize: 35);
TableRow getMonthTableRow(MapEntry<String, Month> month) {
return TableRow(
children: [
TableCell(
child: Text(
month.key,
style: monthTableRowTextStyle,
textAlign: TextAlign.right
)
),
TableCell(
child: Text(
month.value.value.toString(),
style: monthTableRowTextStyle,
textAlign: TextAlign.center
)
)
]
);
}
@override @override
Widget build(BuildContext context) { Widget build(BuildContext context) {
return Scaffold( return Scaffold(
@ -35,9 +13,120 @@ class MonthValuesPage extends StatelessWidget {
title: Text("Month Values") title: Text("Month Values")
), ),
body: Center( body: Center(
child: Table( child: Column(
children: Months.stringMap.entries.map(getMonthTableRow).toList() children: <Widget>[
) Text(
"To calculate the value for a year,",
style: TextStyle(fontSize: 20)
),
Text(
"Take only the last two digits: ",
style: TextStyle(fontSize: 20)
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
"YY",
style: TextStyle(
color: Colors.grey,
fontSize: 25
)
),
Text(
"YY",
style: TextStyle(
color: Colors.green,
fontSize: 25
)
)
],
),
Text(
"Calculate:",
style: TextStyle(fontSize: 20)
),
Text(
"(YY + floor(YY / 4)) % 7",
style: TextStyle(fontSize: 20)
),
Text(
"So for example:",
style: TextStyle(fontSize: 20)
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
"19",
style: TextStyle(
color: Colors.grey,
fontSize: 25
)
),
Text(
"67",
style: TextStyle(
color: Colors.green,
fontSize: 25
)
)
],
),
Text(
"The calculation becomes",
style: TextStyle(fontSize: 20)
),
Text(
"(67 + floor(67 / 4)) % 7",
style: TextStyle(fontSize: 20)
),
Text(
"Let's first calculate '67 / 4': 16.75",
style: TextStyle(fontSize: 20)
),
Text(
"Fill that into the calculation:",
style: TextStyle(fontSize: 20)
),
Text(
"(67 + floor(16.75)) % 7",
style: TextStyle(fontSize: 20)
),
Text(
"'Floor' it:",
style: TextStyle(fontSize: 20)
),
Text(
"(67 + 16) % 7",
style: TextStyle(fontSize: 20)
),
Text(
"(67 + 16) % 7",
style: TextStyle(fontSize: 20)
),
Text(
"Calculate '67 + 16': 83",
style: TextStyle(fontSize: 20)
),
Text(
"And that leaves us with: ",
style: TextStyle(fontSize: 20)
),
Text(
"83 % 7",
style: TextStyle(fontSize: 20)
),
Text(
"The final calculation gives us a year value of:",
style: TextStyle(fontSize: 20)
),
Text(
"6",
style: TextStyle(fontSize: 20)
),
],
)
) )
); );
} }