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samples/web/charts/lib/axes/hidden_ticks_and_labels_axi...

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// 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.
/// No Axis Example
// EXCLUDE_FROM_GALLERY_DOCS_START
import 'dart:math';
// EXCLUDE_FROM_GALLERY_DOCS_END
import 'package:flutter/material.dart';
import 'package:charts_flutter/flutter.dart' as charts;
/// Example of hiding both axis.
class HiddenTicksAndLabelsAxis extends StatelessWidget {
final List<charts.Series> seriesList;
final bool animate;
const HiddenTicksAndLabelsAxis(this.seriesList, {this.animate, Key key})
: super(key: key);
factory HiddenTicksAndLabelsAxis.withSampleData() {
return HiddenTicksAndLabelsAxis(
_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 HiddenTicksAndLabelsAxis.withRandomData() {
return HiddenTicksAndLabelsAxis(_createRandomData());
}
/// Create random data.
static List<charts.Series<OrdinalSales, String>> _createRandomData() {
final random = Random();
final globalSalesData = [
OrdinalSales('2014', random.nextInt(100) * 100),
OrdinalSales('2015', random.nextInt(100) * 100),
OrdinalSales('2016', random.nextInt(100) * 100),
OrdinalSales('2017', random.nextInt(100) * 100),
];
return [
charts.Series<OrdinalSales, String>(
id: 'Global Revenue',
domainFn: (OrdinalSales sales, _) => sales.year,
measureFn: (OrdinalSales sales, _) => sales.sales,
data: globalSalesData,
),
];
}
// EXCLUDE_FROM_GALLERY_DOCS_END
@override
Widget build(BuildContext context) {
return charts.BarChart(
seriesList,
animate: animate,
/// Assign a custom style for the measure axis.
///
/// The NoneRenderSpec can still draw an axis line with
/// showAxisLine=true.
primaryMeasureAxis:
const charts.NumericAxisSpec(renderSpec: charts.NoneRenderSpec()),
/// This is an OrdinalAxisSpec to match up with BarChart's default
/// ordinal domain axis (use NumericAxisSpec or DateTimeAxisSpec for
/// other charts).
domainAxis: const charts.OrdinalAxisSpec(
// Make sure that we draw the domain axis line.
showAxisLine: true,
// But don't draw anything else.
renderSpec: charts.NoneRenderSpec()),
);
}
/// Create series list with single series
static List<charts.Series<OrdinalSales, String>> _createSampleData() {
final globalSalesData = [
OrdinalSales('2014', 5000),
OrdinalSales('2015', 25000),
OrdinalSales('2016', 100000),
OrdinalSales('2017', 750000),
];
return [
charts.Series<OrdinalSales, String>(
id: 'Global Revenue',
domainFn: (OrdinalSales sales, _) => sales.year,
measureFn: (OrdinalSales sales, _) => sales.sales,
data: globalSalesData,
),
];
}
}
/// Sample ordinal data type.
class OrdinalSales {
final String year;
final int sales;
OrdinalSales(this.year, this.sales);
}