mirror of
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Add flutter_web samples (#75)
This commit is contained in:
Kevin Moore
committed by
Andrew Brogdon
Andrew Brogdon
parent
42f2dce01b
commit
3fe927cb29
50
web/charts/example/lib/i18n/i18n_gallery.dart
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50
web/charts/example/lib/i18n/i18n_gallery.dart
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// Copyright 2018 the Charts project authors. Please see the AUTHORS file
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// for details.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import 'package:flutter_web/material.dart';
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import '../gallery_scaffold.dart';
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import 'rtl_bar_chart.dart';
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import 'rtl_line_chart.dart';
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import 'rtl_line_segments.dart';
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import 'rtl_series_legend.dart';
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List<GalleryScaffold> buildGallery() {
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return [
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new GalleryScaffold(
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listTileIcon: new Icon(Icons.flag),
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title: 'RTL Bar Chart',
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subtitle: 'Simple bar chart in RTL',
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childBuilder: () => new RTLBarChart.withRandomData(),
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),
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new GalleryScaffold(
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listTileIcon: new Icon(Icons.flag),
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title: 'RTL Line Chart',
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subtitle: 'Simple line chart in RTL',
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childBuilder: () => new RTLLineChart.withRandomData(),
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),
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new GalleryScaffold(
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listTileIcon: new Icon(Icons.flag),
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title: 'RTL Line Segments',
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subtitle: 'Stacked area chart with style segments in RTL',
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childBuilder: () => new RTLLineSegments.withRandomData(),
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),
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new GalleryScaffold(
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listTileIcon: new Icon(Icons.flag),
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title: 'RTL Series Legend',
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subtitle: 'Series legend in RTL',
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childBuilder: () => new RTLSeriesLegend.withRandomData(),
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),
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];
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}
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119
web/charts/example/lib/i18n/rtl_bar_chart.dart
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119
web/charts/example/lib/i18n/rtl_bar_chart.dart
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@@ -0,0 +1,119 @@
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// Copyright 2018 the Charts project authors. Please see the AUTHORS file
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// for details.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/// RTL Bar chart example
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// EXCLUDE_FROM_GALLERY_DOCS_START
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import 'dart:math';
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// EXCLUDE_FROM_GALLERY_DOCS_END
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import 'package:charts_flutter/flutter.dart' as charts;
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import 'package:flutter_web/material.dart';
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class RTLBarChart extends StatelessWidget {
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final List<charts.Series> seriesList;
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final bool animate;
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RTLBarChart(this.seriesList, {this.animate});
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/// Creates a [BarChart] with sample data and no transition.
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factory RTLBarChart.withSampleData() {
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return new RTLBarChart(
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_createSampleData(),
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// Disable animations for image tests.
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animate: false,
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);
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}
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// EXCLUDE_FROM_GALLERY_DOCS_START
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// This section is excluded from being copied to the gallery.
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// It is used for creating random series data to demonstrate animation in
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// the example app only.
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factory RTLBarChart.withRandomData() {
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return new RTLBarChart(_createRandomData());
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}
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/// Create random data.
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static List<charts.Series<OrdinalSales, String>> _createRandomData() {
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final random = new Random();
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final data = [
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new OrdinalSales('2014', random.nextInt(100)),
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new OrdinalSales('2015', random.nextInt(100)),
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new OrdinalSales('2016', random.nextInt(100)),
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new OrdinalSales('2017', random.nextInt(100)),
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];
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return [
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new charts.Series<OrdinalSales, String>(
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id: 'Sales',
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domainFn: (OrdinalSales sales, _) => sales.year,
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measureFn: (OrdinalSales sales, _) => sales.sales,
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data: data,
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)
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];
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}
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// EXCLUDE_FROM_GALLERY_DOCS_END
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@override
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Widget build(BuildContext context) {
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// Charts will determine if RTL is enabled by checking the directionality by
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// requesting Directionality.of(context). This returns the text direction
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// from the closest instance of that encloses the context passed to build
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// the chart. A [TextDirection.rtl] will be treated as a RTL chart. This
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// means that the directionality widget does not have to directly wrap each
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// chart. It is show here as an example only.
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//
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// By default, when a chart detects RTL:
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// Measure axis positions are flipped. Primary measure axis is on the right
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// and the secondary measure axis is on the left (when used).
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// Domain axis' first domain starts on the right and grows left.
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//
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// Optionally, [RTLSpec] can be passed in when creating the chart to specify
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// chart display settings in RTL mode.
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return new Directionality(
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textDirection: TextDirection.rtl,
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child: new charts.BarChart(
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seriesList,
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animate: animate,
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vertical: false,
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));
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}
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/// Create one series with sample hard coded data.
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static List<charts.Series<OrdinalSales, String>> _createSampleData() {
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final data = [
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new OrdinalSales('2014', 5),
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new OrdinalSales('2015', 25),
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new OrdinalSales('2016', 100),
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new OrdinalSales('2017', 75),
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];
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return [
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new charts.Series<OrdinalSales, String>(
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id: 'Sales',
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domainFn: (OrdinalSales sales, _) => sales.year,
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measureFn: (OrdinalSales sales, _) => sales.sales,
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data: data,
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)
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];
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}
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}
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/// Sample ordinal data type.
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class OrdinalSales {
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final String year;
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final int sales;
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OrdinalSales(this.year, this.sales);
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}
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115
web/charts/example/lib/i18n/rtl_line_chart.dart
Normal file
115
web/charts/example/lib/i18n/rtl_line_chart.dart
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@@ -0,0 +1,115 @@
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// Copyright 2018 the Charts project authors. Please see the AUTHORS file
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// for details.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
|
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/// RTL Line chart example
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// EXCLUDE_FROM_GALLERY_DOCS_START
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import 'dart:math';
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// EXCLUDE_FROM_GALLERY_DOCS_END
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import 'package:charts_flutter/flutter.dart' as charts;
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import 'package:flutter_web/material.dart';
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class RTLLineChart extends StatelessWidget {
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final List<charts.Series> seriesList;
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final bool animate;
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RTLLineChart(this.seriesList, {this.animate});
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/// Creates a [LineChart] with sample data and no transition.
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factory RTLLineChart.withSampleData() {
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return new RTLLineChart(
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_createSampleData(),
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// Disable animations for image tests.
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animate: false,
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);
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}
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// EXCLUDE_FROM_GALLERY_DOCS_START
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// This section is excluded from being copied to the gallery.
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// It is used for creating random series data to demonstrate animation in
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// the example app only.
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factory RTLLineChart.withRandomData() {
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return new RTLLineChart(_createRandomData());
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}
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/// Create random data.
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static List<charts.Series<LinearSales, num>> _createRandomData() {
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final random = new Random();
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final data = [
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new LinearSales(0, random.nextInt(100)),
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new LinearSales(1, random.nextInt(100)),
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new LinearSales(2, random.nextInt(100)),
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new LinearSales(3, random.nextInt(100)),
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];
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return [
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new charts.Series<LinearSales, int>(
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id: 'Sales',
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domainFn: (LinearSales sales, _) => sales.year,
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measureFn: (LinearSales sales, _) => sales.sales,
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data: data,
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)
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];
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}
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// EXCLUDE_FROM_GALLERY_DOCS_END
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@override
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Widget build(BuildContext context) {
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// Charts will determine if RTL is enabled by checking the directionality by
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// requesting Directionality.of(context). This returns the text direction
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// from the closest instance of that encloses the context passed to build
|
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// the chart. A [TextDirection.rtl] will be treated as a RTL chart. This
|
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// means that the directionality widget does not have to directly wrap each
|
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// chart. It is show here as an example only.
|
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//
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// By default, when a chart detects RTL:
|
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// Measure axis positions are flipped. Primary measure axis is on the right
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// and the secondary measure axis is on the left (when used).
|
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// Domain axis' first domain starts on the right and grows left.
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return new Directionality(
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textDirection: TextDirection.rtl,
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child: new charts.LineChart(
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seriesList,
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animate: animate,
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));
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}
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/// Create one series with sample hard coded data.
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static List<charts.Series<LinearSales, int>> _createSampleData() {
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final data = [
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new LinearSales(0, 5),
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new LinearSales(1, 25),
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new LinearSales(2, 100),
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new LinearSales(3, 75),
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];
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return [
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new charts.Series<LinearSales, int>(
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id: 'Sales',
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domainFn: (LinearSales sales, _) => sales.year,
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measureFn: (LinearSales sales, _) => sales.sales,
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data: data,
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)
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];
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}
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}
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/// Sample linear data type.
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class LinearSales {
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final int year;
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final int sales;
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LinearSales(this.year, this.sales);
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}
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248
web/charts/example/lib/i18n/rtl_line_segments.dart
Normal file
248
web/charts/example/lib/i18n/rtl_line_segments.dart
Normal file
@@ -0,0 +1,248 @@
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// Copyright 2018 the Charts project authors. Please see the AUTHORS file
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// for details.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
|
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// you may not use this file except in compliance with the License.
|
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// You may obtain a copy of the License at
|
||||
//
|
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// http://www.apache.org/licenses/LICENSE-2.0
|
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//
|
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// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
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// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
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/// Example of a RTL stacked area chart with changing styles within each line.
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///
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/// Each series of data in this example contains different values for color,
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/// dashPattern, or strokeWidthPx between each datum. The line and area skirt
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/// will be rendered in segments, with the styling of the series changing when
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/// these data attributes change.
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///
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/// Note that if a dashPattern or strokeWidth value is not found for a
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/// particular datum, then the chart will fall back to use the value defined in
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/// the [charts.LineRendererConfig]. This could be used, for example, to define
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/// a default dash pattern for the series, with only a specific datum called out
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/// with a different pattern.
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// EXCLUDE_FROM_GALLERY_DOCS_START
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import 'dart:math';
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// EXCLUDE_FROM_GALLERY_DOCS_END
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import 'package:charts_flutter/flutter.dart' as charts;
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import 'package:flutter_web/material.dart';
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class RTLLineSegments extends StatelessWidget {
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final List<charts.Series> seriesList;
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final bool animate;
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RTLLineSegments(this.seriesList, {this.animate});
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/// Creates a [LineChart] with sample data and no transition.
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factory RTLLineSegments.withSampleData() {
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return new RTLLineSegments(
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_createSampleData(),
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// Disable animations for image tests.
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animate: false,
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);
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}
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|
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// EXCLUDE_FROM_GALLERY_DOCS_START
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// This section is excluded from being copied to the gallery.
|
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// It is used for creating random series data to demonstrate animation in
|
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// the example app only.
|
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factory RTLLineSegments.withRandomData() {
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return new RTLLineSegments(_createRandomData());
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}
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/// Create random data.
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static List<charts.Series<LinearSales, num>> _createRandomData() {
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final random = new Random();
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// Series of data with static dash pattern and stroke width. The colorFn
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// accessor will colorize each datum (for all three series).
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final colorChangeData = [
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new LinearSales(0, random.nextInt(100), null, 2.0),
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new LinearSales(1, random.nextInt(100), null, 2.0),
|
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new LinearSales(2, random.nextInt(100), null, 2.0),
|
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new LinearSales(3, random.nextInt(100), null, 2.0),
|
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new LinearSales(4, random.nextInt(100), null, 2.0),
|
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new LinearSales(5, random.nextInt(100), null, 2.0),
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new LinearSales(6, random.nextInt(100), null, 2.0),
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];
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// Series of data with changing color and dash pattern.
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final dashPatternChangeData = [
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new LinearSales(0, random.nextInt(100), [2, 2], 2.0),
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new LinearSales(1, random.nextInt(100), [2, 2], 2.0),
|
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new LinearSales(2, random.nextInt(100), [4, 4], 2.0),
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new LinearSales(3, random.nextInt(100), [4, 4], 2.0),
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new LinearSales(4, random.nextInt(100), [4, 4], 2.0),
|
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new LinearSales(5, random.nextInt(100), [8, 3, 2, 3], 2.0),
|
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new LinearSales(6, random.nextInt(100), [8, 3, 2, 3], 2.0),
|
||||
];
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|
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// Series of data with changing color and stroke width.
|
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final strokeWidthChangeData = [
|
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new LinearSales(0, random.nextInt(100), null, 2.0),
|
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new LinearSales(1, random.nextInt(100), null, 2.0),
|
||||
new LinearSales(2, random.nextInt(100), null, 4.0),
|
||||
new LinearSales(3, random.nextInt(100), null, 4.0),
|
||||
new LinearSales(4, random.nextInt(100), null, 4.0),
|
||||
new LinearSales(5, random.nextInt(100), null, 6.0),
|
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new LinearSales(6, random.nextInt(100), null, 6.0),
|
||||
];
|
||||
|
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// Generate 2 shades of each color so that we can style the line segments.
|
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final blue = charts.MaterialPalette.blue.makeShades(2);
|
||||
final red = charts.MaterialPalette.red.makeShades(2);
|
||||
final green = charts.MaterialPalette.green.makeShades(2);
|
||||
|
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return [
|
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new charts.Series<LinearSales, int>(
|
||||
id: 'Color Change',
|
||||
// Light shade for even years, dark shade for odd.
|
||||
colorFn: (LinearSales sales, _) =>
|
||||
sales.year % 2 == 0 ? blue[1] : blue[0],
|
||||
dashPatternFn: (LinearSales sales, _) => sales.dashPattern,
|
||||
strokeWidthPxFn: (LinearSales sales, _) => sales.strokeWidthPx,
|
||||
domainFn: (LinearSales sales, _) => sales.year,
|
||||
measureFn: (LinearSales sales, _) => sales.sales,
|
||||
data: colorChangeData,
|
||||
),
|
||||
new charts.Series<LinearSales, int>(
|
||||
id: 'Dash Pattern Change',
|
||||
// Light shade for even years, dark shade for odd.
|
||||
colorFn: (LinearSales sales, _) =>
|
||||
sales.year % 2 == 0 ? red[1] : red[0],
|
||||
dashPatternFn: (LinearSales sales, _) => sales.dashPattern,
|
||||
strokeWidthPxFn: (LinearSales sales, _) => sales.strokeWidthPx,
|
||||
domainFn: (LinearSales sales, _) => sales.year,
|
||||
measureFn: (LinearSales sales, _) => sales.sales,
|
||||
data: dashPatternChangeData,
|
||||
),
|
||||
new charts.Series<LinearSales, int>(
|
||||
id: 'Stroke Width Change',
|
||||
// Light shade for even years, dark shade for odd.
|
||||
colorFn: (LinearSales sales, _) =>
|
||||
sales.year % 2 == 0 ? green[1] : green[0],
|
||||
dashPatternFn: (LinearSales sales, _) => sales.dashPattern,
|
||||
strokeWidthPxFn: (LinearSales sales, _) => sales.strokeWidthPx,
|
||||
domainFn: (LinearSales sales, _) => sales.year,
|
||||
measureFn: (LinearSales sales, _) => sales.sales,
|
||||
data: strokeWidthChangeData,
|
||||
),
|
||||
];
|
||||
}
|
||||
// EXCLUDE_FROM_GALLERY_DOCS_END
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
// Charts will determine if RTL is enabled by checking the directionality by
|
||||
// requesting Directionality.of(context). This returns the text direction
|
||||
// from the closest instance of that encloses the context passed to build
|
||||
// the chart. A [TextDirection.rtl] will be treated as a RTL chart. This
|
||||
// means that the directionality widget does not have to directly wrap each
|
||||
// chart. It is show here as an example only.
|
||||
//
|
||||
// By default, when a chart detects RTL:
|
||||
// Measure axis positions are flipped. Primary measure axis is on the right
|
||||
// and the secondary measure axis is on the left (when used).
|
||||
// Domain axis' first domain starts on the right and grows left.
|
||||
return new Directionality(
|
||||
textDirection: TextDirection.rtl,
|
||||
child: new charts.LineChart(
|
||||
seriesList,
|
||||
defaultRenderer:
|
||||
new charts.LineRendererConfig(includeArea: true, stacked: true),
|
||||
animate: animate,
|
||||
));
|
||||
}
|
||||
|
||||
/// Create one series with sample hard coded data.
|
||||
static List<charts.Series<LinearSales, int>> _createSampleData() {
|
||||
// Series of data with static dash pattern and stroke width. The colorFn
|
||||
// accessor will colorize each datum (for all three series).
|
||||
final colorChangeData = [
|
||||
new LinearSales(0, 5, null, 2.0),
|
||||
new LinearSales(1, 15, null, 2.0),
|
||||
new LinearSales(2, 25, null, 2.0),
|
||||
new LinearSales(3, 75, null, 2.0),
|
||||
new LinearSales(4, 100, null, 2.0),
|
||||
new LinearSales(5, 90, null, 2.0),
|
||||
new LinearSales(6, 75, null, 2.0),
|
||||
];
|
||||
|
||||
// Series of data with changing color and dash pattern.
|
||||
final dashPatternChangeData = [
|
||||
new LinearSales(0, 5, [2, 2], 2.0),
|
||||
new LinearSales(1, 15, [2, 2], 2.0),
|
||||
new LinearSales(2, 25, [4, 4], 2.0),
|
||||
new LinearSales(3, 75, [4, 4], 2.0),
|
||||
new LinearSales(4, 100, [4, 4], 2.0),
|
||||
new LinearSales(5, 90, [8, 3, 2, 3], 2.0),
|
||||
new LinearSales(6, 75, [8, 3, 2, 3], 2.0),
|
||||
];
|
||||
|
||||
// Series of data with changing color and stroke width.
|
||||
final strokeWidthChangeData = [
|
||||
new LinearSales(0, 5, null, 2.0),
|
||||
new LinearSales(1, 15, null, 2.0),
|
||||
new LinearSales(2, 25, null, 4.0),
|
||||
new LinearSales(3, 75, null, 4.0),
|
||||
new LinearSales(4, 100, null, 4.0),
|
||||
new LinearSales(5, 90, null, 6.0),
|
||||
new LinearSales(6, 75, null, 6.0),
|
||||
];
|
||||
|
||||
// Generate 2 shades of each color so that we can style the line segments.
|
||||
final blue = charts.MaterialPalette.blue.makeShades(2);
|
||||
final red = charts.MaterialPalette.red.makeShades(2);
|
||||
final green = charts.MaterialPalette.green.makeShades(2);
|
||||
|
||||
return [
|
||||
new charts.Series<LinearSales, int>(
|
||||
id: 'Color Change',
|
||||
// Light shade for even years, dark shade for odd.
|
||||
colorFn: (LinearSales sales, _) =>
|
||||
sales.year % 2 == 0 ? blue[1] : blue[0],
|
||||
dashPatternFn: (LinearSales sales, _) => sales.dashPattern,
|
||||
strokeWidthPxFn: (LinearSales sales, _) => sales.strokeWidthPx,
|
||||
domainFn: (LinearSales sales, _) => sales.year,
|
||||
measureFn: (LinearSales sales, _) => sales.sales,
|
||||
data: colorChangeData,
|
||||
),
|
||||
new charts.Series<LinearSales, int>(
|
||||
id: 'Dash Pattern Change',
|
||||
// Light shade for even years, dark shade for odd.
|
||||
colorFn: (LinearSales sales, _) =>
|
||||
sales.year % 2 == 0 ? red[1] : red[0],
|
||||
dashPatternFn: (LinearSales sales, _) => sales.dashPattern,
|
||||
strokeWidthPxFn: (LinearSales sales, _) => sales.strokeWidthPx,
|
||||
domainFn: (LinearSales sales, _) => sales.year,
|
||||
measureFn: (LinearSales sales, _) => sales.sales,
|
||||
data: dashPatternChangeData,
|
||||
),
|
||||
new charts.Series<LinearSales, int>(
|
||||
id: 'Stroke Width Change',
|
||||
// Light shade for even years, dark shade for odd.
|
||||
colorFn: (LinearSales sales, _) =>
|
||||
sales.year % 2 == 0 ? green[1] : green[0],
|
||||
dashPatternFn: (LinearSales sales, _) => sales.dashPattern,
|
||||
strokeWidthPxFn: (LinearSales sales, _) => sales.strokeWidthPx,
|
||||
domainFn: (LinearSales sales, _) => sales.year,
|
||||
measureFn: (LinearSales sales, _) => sales.sales,
|
||||
data: strokeWidthChangeData,
|
||||
),
|
||||
];
|
||||
}
|
||||
}
|
||||
|
||||
/// Sample linear data type.
|
||||
class LinearSales {
|
||||
final int year;
|
||||
final int sales;
|
||||
final List<int> dashPattern;
|
||||
final double strokeWidthPx;
|
||||
|
||||
LinearSales(this.year, this.sales, this.dashPattern, this.strokeWidthPx);
|
||||
}
|
||||
206
web/charts/example/lib/i18n/rtl_series_legend.dart
Normal file
206
web/charts/example/lib/i18n/rtl_series_legend.dart
Normal file
@@ -0,0 +1,206 @@
|
||||
// Copyright 2018 the Charts project authors. Please see the AUTHORS file
|
||||
// for details.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
/// RTL Bar chart example
|
||||
// EXCLUDE_FROM_GALLERY_DOCS_START
|
||||
import 'dart:math';
|
||||
// EXCLUDE_FROM_GALLERY_DOCS_END
|
||||
import 'package:charts_flutter/flutter.dart' as charts;
|
||||
import 'package:flutter_web/material.dart';
|
||||
|
||||
class RTLSeriesLegend extends StatelessWidget {
|
||||
final List<charts.Series> seriesList;
|
||||
final bool animate;
|
||||
|
||||
RTLSeriesLegend(this.seriesList, {this.animate});
|
||||
|
||||
/// Creates a [BarChart] with sample data and no transition.
|
||||
factory RTLSeriesLegend.withSampleData() {
|
||||
return new RTLSeriesLegend(
|
||||
_createSampleData(),
|
||||
// Disable animations for image tests.
|
||||
animate: false,
|
||||
);
|
||||
}
|
||||
|
||||
// EXCLUDE_FROM_GALLERY_DOCS_START
|
||||
// This section is excluded from being copied to the gallery.
|
||||
// It is used for creating random series data to demonstrate animation in
|
||||
// the example app only.
|
||||
factory RTLSeriesLegend.withRandomData() {
|
||||
return new RTLSeriesLegend(_createRandomData());
|
||||
}
|
||||
|
||||
/// Create random data.
|
||||
static List<charts.Series<OrdinalSales, String>> _createRandomData() {
|
||||
final random = new Random();
|
||||
|
||||
final desktopSalesData = [
|
||||
new OrdinalSales('2014', random.nextInt(100)),
|
||||
new OrdinalSales('2015', random.nextInt(100)),
|
||||
new OrdinalSales('2016', random.nextInt(100)),
|
||||
new OrdinalSales('2017', random.nextInt(100)),
|
||||
];
|
||||
|
||||
final tabletSalesData = [
|
||||
new OrdinalSales('2014', random.nextInt(100)),
|
||||
new OrdinalSales('2015', random.nextInt(100)),
|
||||
new OrdinalSales('2016', random.nextInt(100)),
|
||||
new OrdinalSales('2017', random.nextInt(100)),
|
||||
];
|
||||
|
||||
final mobileSalesData = [
|
||||
new OrdinalSales('2014', random.nextInt(100)),
|
||||
new OrdinalSales('2015', random.nextInt(100)),
|
||||
new OrdinalSales('2016', random.nextInt(100)),
|
||||
new OrdinalSales('2017', random.nextInt(100)),
|
||||
];
|
||||
|
||||
final otherSalesData = [
|
||||
new OrdinalSales('2014', random.nextInt(100)),
|
||||
new OrdinalSales('2015', random.nextInt(100)),
|
||||
new OrdinalSales('2016', random.nextInt(100)),
|
||||
new OrdinalSales('2017', random.nextInt(100)),
|
||||
];
|
||||
|
||||
return [
|
||||
new charts.Series<OrdinalSales, String>(
|
||||
id: 'Desktop',
|
||||
domainFn: (OrdinalSales sales, _) => sales.year,
|
||||
measureFn: (OrdinalSales sales, _) => sales.sales,
|
||||
data: desktopSalesData,
|
||||
),
|
||||
new charts.Series<OrdinalSales, String>(
|
||||
id: 'Tablet',
|
||||
domainFn: (OrdinalSales sales, _) => sales.year,
|
||||
measureFn: (OrdinalSales sales, _) => sales.sales,
|
||||
data: tabletSalesData,
|
||||
),
|
||||
new charts.Series<OrdinalSales, String>(
|
||||
id: 'Mobile',
|
||||
domainFn: (OrdinalSales sales, _) => sales.year,
|
||||
measureFn: (OrdinalSales sales, _) => sales.sales,
|
||||
data: mobileSalesData,
|
||||
),
|
||||
new charts.Series<OrdinalSales, String>(
|
||||
id: 'Other',
|
||||
domainFn: (OrdinalSales sales, _) => sales.year,
|
||||
measureFn: (OrdinalSales sales, _) => sales.sales,
|
||||
data: otherSalesData,
|
||||
),
|
||||
];
|
||||
}
|
||||
// EXCLUDE_FROM_GALLERY_DOCS_END
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
// Charts will determine if RTL is enabled by checking the directionality by
|
||||
// requesting Directionality.of(context). This returns the text direction
|
||||
// from the closest instance of that encloses the context passed to build
|
||||
// the chart. A [TextDirection.rtl] will be treated as a RTL chart. This
|
||||
// means that the directionality widget does not have to directly wrap each
|
||||
// chart. It is show here as an example only.
|
||||
//
|
||||
// When the legend behavior detects RTL:
|
||||
// [BehaviorPosition.start] is to the right of the chart.
|
||||
// [BehaviorPosition.end] is to the left of the chart.
|
||||
//
|
||||
// If the [BehaviorPosition] is top or bottom, the start justification
|
||||
// is to the right, and the end justification is to the left.
|
||||
//
|
||||
// The legend's tabular layout will also layout rows and columns from right
|
||||
// to left.
|
||||
//
|
||||
// The below example changes the position to 'start' and max rows of 2 in
|
||||
// order to show these effects, but are not required for SeriesLegend to
|
||||
// work with the correct directionality.
|
||||
return new Directionality(
|
||||
textDirection: TextDirection.rtl,
|
||||
child: new charts.BarChart(
|
||||
seriesList,
|
||||
animate: animate,
|
||||
behaviors: [
|
||||
new charts.SeriesLegend(
|
||||
position: charts.BehaviorPosition.end, desiredMaxRows: 2)
|
||||
],
|
||||
));
|
||||
}
|
||||
|
||||
/// Create series list with multiple series
|
||||
static List<charts.Series<OrdinalSales, String>> _createSampleData() {
|
||||
final desktopSalesData = [
|
||||
new OrdinalSales('2014', 5),
|
||||
new OrdinalSales('2015', 25),
|
||||
new OrdinalSales('2016', 100),
|
||||
new OrdinalSales('2017', 75),
|
||||
];
|
||||
|
||||
final tabletSalesData = [
|
||||
new OrdinalSales('2014', 25),
|
||||
new OrdinalSales('2015', 50),
|
||||
new OrdinalSales('2016', 10),
|
||||
new OrdinalSales('2017', 20),
|
||||
];
|
||||
|
||||
final mobileSalesData = [
|
||||
new OrdinalSales('2014', 10),
|
||||
new OrdinalSales('2015', 15),
|
||||
new OrdinalSales('2016', 50),
|
||||
new OrdinalSales('2017', 45),
|
||||
];
|
||||
|
||||
final otherSalesData = [
|
||||
new OrdinalSales('2014', 20),
|
||||
new OrdinalSales('2015', 35),
|
||||
new OrdinalSales('2016', 15),
|
||||
new OrdinalSales('2017', 10),
|
||||
];
|
||||
|
||||
return [
|
||||
new charts.Series<OrdinalSales, String>(
|
||||
id: 'Desktop',
|
||||
domainFn: (OrdinalSales sales, _) => sales.year,
|
||||
measureFn: (OrdinalSales sales, _) => sales.sales,
|
||||
data: desktopSalesData,
|
||||
),
|
||||
new charts.Series<OrdinalSales, String>(
|
||||
id: 'Tablet',
|
||||
domainFn: (OrdinalSales sales, _) => sales.year,
|
||||
measureFn: (OrdinalSales sales, _) => sales.sales,
|
||||
data: tabletSalesData,
|
||||
),
|
||||
new charts.Series<OrdinalSales, String>(
|
||||
id: 'Mobile',
|
||||
domainFn: (OrdinalSales sales, _) => sales.year,
|
||||
measureFn: (OrdinalSales sales, _) => sales.sales,
|
||||
data: mobileSalesData,
|
||||
),
|
||||
new charts.Series<OrdinalSales, String>(
|
||||
id: 'Other',
|
||||
domainFn: (OrdinalSales sales, _) => sales.year,
|
||||
measureFn: (OrdinalSales sales, _) => sales.sales,
|
||||
data: otherSalesData,
|
||||
),
|
||||
];
|
||||
}
|
||||
}
|
||||
|
||||
/// Sample ordinal data type.
|
||||
class OrdinalSales {
|
||||
final String year;
|
||||
final int sales;
|
||||
|
||||
OrdinalSales(this.year, this.sales);
|
||||
}
|
||||
Reference in New Issue
Block a user