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Merge pull request #2178 from get10101/feat/leverage-slider
feat(webapp): add leverage slider
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,175 @@ | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:font_awesome_flutter/font_awesome_flutter.dart'; | ||
| import 'package:get_10101/common/color.dart'; | ||
| import 'package:get_10101/common/theme.dart'; | ||
| import 'package:intl/intl.dart'; | ||
| import 'package:syncfusion_flutter_sliders/sliders.dart'; | ||
| import 'package:syncfusion_flutter_core/theme.dart' as slider_theme; | ||
|
|
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| const gradientColors = <Color>[Colors.green, Colors.deepOrange]; | ||
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| const LinearGradient gradient = LinearGradient(colors: gradientColors); | ||
|
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| const double minLeverage = 1.0; | ||
| const double maxLeverage = 5.0; | ||
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| /// Slider that allows the user to select a leverage between minLeverage and maxLeverage. | ||
| /// It uses linear scale and fractional leverage values are rounded to the nearest integer. | ||
| class LeverageSlider extends StatefulWidget { | ||
| final double initialValue; | ||
| final Function(double) onLeverageChanged; | ||
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| const LeverageSlider({required this.onLeverageChanged, this.initialValue = 2, super.key}); | ||
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| @override | ||
| State<LeverageSlider> createState() => _LeverageSliderState(); | ||
| } | ||
|
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| class _LeverageSliderState extends State<LeverageSlider> { | ||
| late double _leverage; | ||
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| @override | ||
| void initState() { | ||
| _leverage = widget.initialValue; | ||
| super.initState(); | ||
| } | ||
|
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| @override | ||
| Widget build(BuildContext context) { | ||
| return InputDecorator( | ||
| decoration: InputDecoration( | ||
| border: const OutlineInputBorder(), | ||
| labelText: "Leverage", | ||
| labelStyle: const TextStyle(color: tenTenOnePurple), | ||
| filled: true, | ||
| fillColor: Colors.white, | ||
| errorStyle: TextStyle( | ||
| color: Colors.red[900], | ||
| ), | ||
| ), | ||
| child: Padding( | ||
| padding: const EdgeInsets.only(left: 8, right: 8), | ||
| child: SizedBox( | ||
| height: 35, | ||
| child: Row( | ||
| mainAxisAlignment: MainAxisAlignment.spaceBetween, | ||
| children: [ | ||
| RoundedIconButton( | ||
| icon: FontAwesomeIcons.minus, | ||
| onTap: () { | ||
| setState(() { | ||
| updateLeverage(_leverage > 1 ? _leverage - 1.0 : _leverage); | ||
| }); | ||
| }, | ||
| ), | ||
| Expanded( | ||
| child: Padding( | ||
| padding: const EdgeInsets.only(left: 2, right: 2), | ||
| child: slider_theme.SfSliderTheme( | ||
| data: slider_theme.SfSliderThemeData( | ||
| activeLabelStyle: const TextStyle(color: Colors.black, fontSize: 12), | ||
| inactiveLabelStyle: const TextStyle(color: Colors.black45, fontSize: 12), | ||
| activeTrackColor: tenTenOnePurple.shade50, | ||
| inactiveTrackColor: tenTenOnePurple.shade50, | ||
| ), | ||
| child: SfSlider( | ||
| min: 1, | ||
| max: maxLeverage, | ||
| value: _leverage, | ||
| stepSize: 1, | ||
| interval: 1, | ||
| showTicks: true, | ||
| showLabels: true, | ||
| enableTooltip: true, | ||
| tooltipShape: const SfPaddleTooltipShape(), | ||
| numberFormat: NumberFormat("x"), | ||
| tooltipTextFormatterCallback: (dynamic actualValue, String formattedText) { | ||
| return "${actualValue}x"; | ||
| }, | ||
| onChanged: (dynamic value) { | ||
| updateLeverage(value); | ||
| }, | ||
| ), | ||
| ), | ||
| ), | ||
| ), | ||
| RoundedIconButton( | ||
| icon: FontAwesomeIcons.plus, | ||
| onTap: () { | ||
| updateLeverage(_leverage < maxLeverage ? _leverage + 1.0 : maxLeverage); | ||
| }, | ||
| ), | ||
| ], | ||
| ), | ||
| ), | ||
| ), | ||
| ); | ||
| } | ||
|
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| updateLeverage(double leverage) { | ||
| setState(() { | ||
| _leverage = leverage; | ||
| }); | ||
|
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| widget.onLeverageChanged(_leverage); | ||
| } | ||
| } | ||
|
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| class LeverageButton extends StatelessWidget { | ||
| const LeverageButton({required this.label, required this.onPressed, super.key}); | ||
|
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| final Function onPressed; | ||
| final String label; | ||
|
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| @override | ||
| Widget build(BuildContext context) { | ||
| TenTenOneTheme tradeTheme = Theme.of(context).extension<TenTenOneTheme>()!; | ||
|
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| return SizedBox( | ||
| width: 30, | ||
| height: 30, | ||
| child: ElevatedButton( | ||
| style: ElevatedButton.styleFrom( | ||
| shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)), | ||
| padding: EdgeInsets.zero, | ||
| backgroundColor: tradeTheme.leverageMinusButtonColor), | ||
| onPressed: () => onPressed(), | ||
| child: Text( | ||
| label, | ||
| style: const TextStyle(color: Colors.white), | ||
| )), | ||
| ); | ||
| } | ||
| } | ||
|
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| class RoundedIconButton extends StatelessWidget { | ||
| final IconData icon; | ||
| final VoidCallback onTap; | ||
|
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| const RoundedIconButton({ | ||
| Key? key, | ||
| required this.icon, | ||
| required this.onTap, | ||
| }) : super(key: key); | ||
|
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| @override | ||
| Widget build(BuildContext context) { | ||
| return InkWell( | ||
| onTap: onTap, | ||
| child: Container( | ||
| width: 20, | ||
| height: 20, | ||
| decoration: BoxDecoration( | ||
| shape: BoxShape.rectangle, | ||
| color: tenTenOnePurple, | ||
| borderRadius: BorderRadius.circular(3), | ||
| ), | ||
| child: Icon( | ||
| icon, | ||
| color: Colors.white, | ||
| size: 16, | ||
| ), | ||
| ), | ||
| ); | ||
| } | ||
| } |
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