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add structure

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sainw
2020-05-29 07:45:27 +06:30
parent 4c851d9971
commit bad27ba5c4
272 changed files with 36065 additions and 174 deletions
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254
lib/reports/fixed_header.dart Normal file
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import 'package:fcs/vo/report.dart';
import 'package:flutter/material.dart';
class ReportsDataTable2 extends StatefulWidget {
Report report;
ReportsDataTable2({this.report});
@override
_ReportsDataTable2State createState() => _ReportsDataTable2State();
}
class _ReportsDataTable2State extends State<ReportsDataTable2> {
final _rowsCells = [
[1, 8, 10, 8, 7],
[2, 10, 9, 6, 6],
[3, 4, 5, 7, 5],
[4, 4, 1, 7, 8],
[7, 8, 10, 8, 7],
[10, 10, 9, 6, 6],
[5, 4, 5, 7, 5],
[9, 4, 1, 7, 8],
[7, 8, 10, 8, 7],
[10, 10, 9, 6, 6],
[5, 4, 5, 7, 5],
[9, 4, 1, 7, 8],
[7, 8, 10, 8, 7],
[10, 10, 9, 6, 6],
[5, 4, 5, 7, 5],
[9, 4, 1, 7, 8]
];
final _fixedColCells = [
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"10",
"11",
"12",
"13",
"14",
"15",
"16"
];
final _fixedRowCells = [
"Math",
"Informatics",
"Geography",
"Physics",
"Biology"
];
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(),
body: CustomDataTable(
rowsCells: _rowsCells,
fixedColCells: _fixedColCells,
fixedRowCells: _fixedRowCells,
cellBuilder: (data) {
return Container(
decoration:
BoxDecoration(border: Border.all(color: Colors.grey[400])),
alignment: Alignment.centerRight,
child: Text('$data'));
},
fixedCornerCell: "",
fixedColWidth: 20,
cellWidth: 150,
),
);
}
}
class CustomDataTable<T> extends StatefulWidget {
final T fixedCornerCell;
final List<T> fixedColCells;
final List<T> fixedRowCells;
final List<List<T>> rowsCells;
final Widget Function(T data) cellBuilder;
final double fixedColWidth;
final double cellWidth;
final double cellHeight;
final double cellMargin;
final double cellSpacing;
CustomDataTable({
this.fixedCornerCell,
this.fixedColCells,
this.fixedRowCells,
@required this.rowsCells,
this.cellBuilder,
this.fixedColWidth = 60.0,
this.cellHeight = 56.0,
this.cellWidth = 120.0,
this.cellMargin = 0.0,
this.cellSpacing = 0,
});
@override
State<StatefulWidget> createState() => CustomDataTableState();
}
class CustomDataTableState<T> extends State<CustomDataTable<T>> {
final _columnController = ScrollController();
final _rowController = ScrollController();
final _subTableYController = ScrollController();
final _subTableXController = ScrollController();
Widget _buildChild(double width, T data) => SizedBox(
width: width, child: widget.cellBuilder?.call(data) ?? Text('$data'));
Widget _buildHeader(double width, T data) => SizedBox(
width: width, child: Container(
decoration:
BoxDecoration(border: Border.all(color: Colors.grey[400])),
alignment: Alignment.centerRight,
child: Text('$data')));
Widget _buildFixedCol() => widget.fixedColCells == null
? SizedBox.shrink()
: Material(
color: Colors.grey[300],
child: DataTable(
horizontalMargin: widget.cellMargin,
columnSpacing: widget.cellSpacing,
headingRowHeight: widget.cellHeight,
dataRowHeight: widget.cellHeight,
columns: [
DataColumn(
label: _buildChild(
widget.fixedColWidth, widget.fixedColCells.first),
numeric: true)
],
rows: widget.fixedColCells
.sublist(widget.fixedRowCells == null ? 1 : 0)
.map((c) => DataRow(
cells: [DataCell(_buildChild(widget.fixedColWidth, c))]))
.toList()),
);
Widget _buildFixedRow() => widget.fixedRowCells == null
? SizedBox.shrink()
: Material(
color: Colors.grey[300],
child: Theme(
data: Theme.of(context).copyWith(dividerColor: Colors.green),
child: DataTable(
horizontalMargin: widget.cellMargin,
columnSpacing: widget.cellSpacing,
headingRowHeight: widget.cellHeight,
dataRowHeight: widget.cellHeight,
columns: widget.fixedRowCells
.map((c) =>
DataColumn(label: _buildHeader(widget.cellWidth, c)))
.toList(),
rows: []),
),
);
Widget _buildSubTable() => Material(
child: DataTable(
horizontalMargin: widget.cellMargin,
columnSpacing: widget.cellSpacing,
headingRowHeight: widget.cellHeight,
dataRowHeight: widget.cellHeight,
// MyDataRowHeight: widget.cellHeight,
columns: widget.rowsCells.first
.map((c) => DataColumn(
label: _buildChild(widget.cellWidth, c), numeric: true))
.toList(),
rows: widget.rowsCells
.sublist(widget.fixedRowCells == null ? 1 : 0)
.map((row) => DataRow(
cells: row
.map((c) => DataCell(_buildChild(widget.cellWidth, c)))
.toList()))
.toList()));
Widget _buildCornerCell() =>
widget.fixedColCells == null || widget.fixedRowCells == null
? SizedBox.shrink()
: Material(
color: Colors.grey[300],
child: DataTable(
horizontalMargin: widget.cellMargin,
columnSpacing: widget.cellSpacing,
headingRowHeight: widget.cellHeight,
dataRowHeight: widget.cellHeight,
columns: [
DataColumn(
label: _buildChild(
widget.fixedColWidth, widget.fixedCornerCell))
],
rows: []),
);
@override
void initState() {
super.initState();
_subTableXController.addListener(() {
_rowController.jumpTo(_subTableXController.position.pixels);
});
_subTableYController.addListener(() {
_columnController.jumpTo(_subTableYController.position.pixels);
});
}
@override
Widget build(BuildContext context) {
return Stack(
children: <Widget>[
Row(
children: <Widget>[
SingleChildScrollView(
controller: _columnController,
scrollDirection: Axis.vertical,
physics: NeverScrollableScrollPhysics(),
child: _buildFixedCol(),
),
Flexible(
child: SingleChildScrollView(
controller: _subTableXController,
scrollDirection: Axis.horizontal,
child: SingleChildScrollView(
controller: _subTableYController,
scrollDirection: Axis.vertical,
child: _buildSubTable(),
),
),
),
],
),
Row(
children: <Widget>[
_buildCornerCell(),
Flexible(
child: SingleChildScrollView(
controller: _rowController,
scrollDirection: Axis.horizontal,
physics: NeverScrollableScrollPhysics(),
child: _buildFixedRow(),
),
),
],
),
],
);
}
}