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import 'dart:math';
import 'package:flutter/material.dart';
import 'package:numberpicker/numberpicker.dart';
class HVACPage extends StatelessWidget {
const HVACPage({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Container(
constraints: BoxConstraints.expand(),
alignment: Alignment.center,
child: const MainPage(title: 'AGL - Flutter HVAC'),
);
}
}
class _TemperatureSelector extends StatefulWidget {
double referenceFontSize = 24;
_TemperatureSelector({Key? key, referenceFontSize}) : super(key: key);
@override
_TemperatureSelectorState createState() => _TemperatureSelectorState();
}
class _TemperatureSelectorState extends State<_TemperatureSelector> {
int _currentValue = 22; // INIT FROM AGLJS wrapper
@override
Widget build(BuildContext context) {
return Column(
children: <Widget>[
NumberPicker(
value: _currentValue,
minValue: 18,
maxValue: 25,
onChanged: (value) => setState(() => _currentValue = value),
textStyle: DefaultTextStyle.of(context).style.copyWith(
color: Colors.teal.shade200,
fontSize: widget.referenceFontSize,
),
selectedTextStyle: DefaultTextStyle.of(context).style.copyWith(
color: Colors.white,
fontSize: widget.referenceFontSize * 1.5,
),
itemHeight: widget.referenceFontSize * 3,
itemWidth: widget.referenceFontSize * 6,
),
],
);
}
}
/// This is the stateful widget that the main application instantiates.
class HVACFanSpeed extends StatefulWidget {
const HVACFanSpeed({Key? key}) : super(key: key);
@override
State<HVACFanSpeed> createState() => _HVACFanSpeedState();
}
/// This is the private State class that goes with MyStatefulWidget.
class _HVACFanSpeedState extends State<HVACFanSpeed> {
double _currentSliderValue = 20;
@override
Widget build(BuildContext context) {
return Slider(
value: _currentSliderValue,
min: 0,
max: 300,
label: _currentSliderValue.round().toString(),
onChanged: (double value) {
setState(() {
_currentSliderValue = value;
});
},
);
}
}
class MainPage extends StatefulWidget {
const MainPage({Key? key, required this.title}) : super(key: key);
final String title;
@override
State<MainPage> createState() => _MyHomePageState();
}
String chairOn = 'images/HMI_HVAC_Left_Chair_ON.png';
String chairOff = 'images/HMI_HVAC_Right_Chair_ON.png';
bool selected = true; // Get from API
class _MyHomePageState extends State<MainPage> {
final double fanSpeed = 20;
Widget _buildLayout(BuildContext context, BoxConstraints constraints) {
// describe the layout in terms of fractions of the container size
double mainDimension = max(constraints.maxWidth, constraints.maxHeight);
double minDimension = min(constraints.maxWidth, constraints.maxHeight);
double iconSize = mainDimension / 12.0;
double largeIconSize = mainDimension / 8.0;
double spacingSize = minDimension / 48.0;
double buttonWidth = constraints.maxWidth / 6.0;
double buttonHeight = constraints.maxHeight / 6.0;
double defaultFontSize = constraints.maxHeight / 24.0;
TextStyle buttonTextStyle = DefaultTextStyle.of(context).style.copyWith(
color: Colors.white,
fontSize: defaultFontSize,
);
Widget fanSpeedControl = Container(
padding: EdgeInsets.symmetric(
vertical: spacingSize,
horizontal: 3 * spacingSize,
),
child: Row(
children: [
Expanded(flex: 4, child: const HVACFanSpeed()),
SizedBox(width: spacingSize),
Expanded(
flex: 1,
child: Image.asset('images/HMI_HVAC_Fan_Icon.png',
width: iconSize, height: iconSize, fit: BoxFit.contain)),
],
),
);
Widget rightSeat = Container(
padding: EdgeInsets.all(spacingSize),
child: Column(
children: [
IconButton(
iconSize: largeIconSize,
icon: Image.asset(selected ? chairOn : chairOff,
width: largeIconSize,
height: largeIconSize,
fit: BoxFit.contain),
onPressed: () {
selected = !selected;
},
),
SizedBox(height: spacingSize),
_TemperatureSelector(
referenceFontSize: defaultFontSize,
),
],
),
);
Widget leftSeat = Container(
padding: EdgeInsets.all(spacingSize),
child: Column(
children: [
Image.asset('images/HMI_HVAC_Right_Chair_ON.png',
width: largeIconSize, height: largeIconSize, fit: BoxFit.contain),
SizedBox(height: spacingSize),
_TemperatureSelector(
referenceFontSize: defaultFontSize,
),
],
),
);
Widget centerView = Container(
padding: EdgeInsets.all(spacingSize),
child: Column(
children: [
Container(
width: buttonWidth,
height: buttonHeight,
margin: EdgeInsets.all(spacingSize),
decoration: BoxDecoration(
border: Border.all(color: Colors.green),
borderRadius: BorderRadius.circular(20)),
child: OutlinedButton(
onPressed: () {
// Respond to button press
},
child: Text("A / C", style: buttonTextStyle),
),
),
Container(
width: buttonWidth,
height: buttonHeight,
margin: EdgeInsets.all(spacingSize),
decoration: BoxDecoration(
border: Border.all(color: Colors.green),
borderRadius: BorderRadius.circular(20)),
child: OutlinedButton(
onPressed: () {
// Respond to button press
},
child: Text("Auto", style: buttonTextStyle),
),
),
Container(
width: buttonWidth,
height: buttonHeight,
margin: EdgeInsets.all(spacingSize),
decoration: BoxDecoration(
border: Border.all(color: Colors.green),
borderRadius: BorderRadius.circular(20)),
child: OutlinedButton(
onPressed: () {
// Respond to button press
},
child: Image.asset('images/HMI_HVAC_Circulation_Inactive.png',
width: iconSize, height: iconSize, fit: BoxFit.contain)),
),
],
),
);
Widget actions = Container(
padding: EdgeInsets.all(spacingSize),
child: Column(
children: [
Image.asset('images/HMI_HVAC_AirDown_Inactive.png',
width: iconSize, height: iconSize, fit: BoxFit.contain),
SizedBox(height: spacingSize),
Image.asset('images/HMI_HVAC_AirUp_Inactive.png',
width: iconSize, height: iconSize, fit: BoxFit.contain),
SizedBox(height: spacingSize),
Image.asset('images/HMI_HVAC_Front_Inactive.png',
width: iconSize, height: iconSize, fit: BoxFit.contain),
SizedBox(height: spacingSize),
Image.asset('images/HMI_HVAC_Rear_Active.png',
width: iconSize, height: iconSize, fit: BoxFit.contain),
],
),
);
return Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
fanSpeedControl,
Row(children: [
Expanded(flex: 1, child: rightSeat),
Expanded(flex: 1, child: centerView),
Expanded(flex: 1, child: leftSeat),
Expanded(flex: 1, child: actions)
])
],
);
}
@override
Widget build(BuildContext context) {
return Container(
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomRight,
colors: [Colors.black, Colors.teal.shade900])),
child: Center(
child: LayoutBuilder(
builder: _buildLayout,
)));
}
}
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