You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
117 lines
4.0 KiB
Dart
117 lines
4.0 KiB
Dart
import 'package:flutter/foundation.dart';
|
|
import 'package:flutter/material.dart';
|
|
import 'package:signature/signature.dart';
|
|
import 'package:test_sa/views/app_style/colors.dart';
|
|
import 'package:test_sa/views/app_style/sizing.dart';
|
|
import 'package:test_sa/views/widgets/loaders/image_loader.dart';
|
|
|
|
class ESignature extends StatefulWidget {
|
|
final String oldSignature;
|
|
final Uint8List newSignature;
|
|
final Function(Uint8List) onSaved;
|
|
const ESignature({Key key, this.oldSignature, this.onSaved, this.newSignature}) : super(key: key);
|
|
|
|
@override
|
|
State<ESignature> createState() => _ESignatureState();
|
|
}
|
|
|
|
class _ESignatureState extends State<ESignature> {
|
|
// Initialise a controller. It will contains signature points, stroke width and pen color.
|
|
final SignatureController _controller = SignatureController(
|
|
penStrokeWidth: 2,
|
|
penColor: Colors.black,
|
|
exportBackgroundColor: Colors.white,
|
|
);
|
|
|
|
Uint8List signature;
|
|
|
|
bool _unpaint = false;
|
|
@override
|
|
void initState() {
|
|
if(widget.newSignature != null) {
|
|
signature = widget.newSignature;
|
|
}
|
|
// TODO: implement initState
|
|
super.initState();
|
|
}
|
|
|
|
@override
|
|
void dispose() {
|
|
_controller.dispose();
|
|
super.dispose();
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return Column(
|
|
children: [
|
|
if(widget.oldSignature != null || signature != null)
|
|
Container(
|
|
width: MediaQuery.of(context).size.width,
|
|
padding: const EdgeInsets.only(bottom: 8),
|
|
height: 90 * AppStyle.getScaleFactor(context),
|
|
child: signature != null ?
|
|
Image.memory(signature):
|
|
ImageLoader(
|
|
boxFit: BoxFit.contain,
|
|
url: widget.oldSignature)
|
|
),
|
|
FormField<String>(
|
|
onSaved: (_) async {
|
|
widget.onSaved(signature);
|
|
},
|
|
builder: (FormFieldState<String> state) {
|
|
return Column(
|
|
children: [
|
|
Container(
|
|
width: MediaQuery.of(context).size.width,
|
|
padding: const EdgeInsets.symmetric(
|
|
horizontal: 16
|
|
),
|
|
decoration: BoxDecoration(
|
|
color: Colors.white,
|
|
border: Border.all(color:AColors.black),
|
|
borderRadius: BorderRadius.circular(
|
|
AppStyle.borderRadius * AppStyle.getScaleFactor(context)
|
|
),
|
|
boxShadow: const [
|
|
AppStyle.boxShadow
|
|
]
|
|
),
|
|
child: AbsorbPointer(
|
|
absorbing: _unpaint,
|
|
child: Signature(
|
|
controller: _controller,
|
|
height: 160 * AppStyle.getScaleFactor(context),
|
|
backgroundColor: Colors.transparent,
|
|
),
|
|
),
|
|
),
|
|
Row(
|
|
children: [
|
|
IconButton(onPressed: (){_controller.clear();}, icon: const Icon(Icons.clear)),
|
|
IconButton(onPressed: (){_controller.undo();}, icon: const Icon(Icons.undo)),
|
|
IconButton(onPressed: (){_controller.redo();}, icon: const Icon(Icons.redo)),
|
|
|
|
IconButton(onPressed: (){
|
|
_unpaint = !_unpaint;
|
|
setState(() {});
|
|
}, icon: Icon(
|
|
_unpaint ? Icons.draw : Icons.ac_unit,
|
|
color: _unpaint ? AColors.orange : null,)),
|
|
const Spacer(),
|
|
IconButton(onPressed: () async {
|
|
signature = await _controller.toPngBytes();
|
|
setState(() {});
|
|
}, icon: const Icon(Icons.check)),
|
|
],
|
|
)
|
|
],
|
|
);
|
|
}
|
|
),
|
|
],
|
|
);
|
|
}
|
|
}
|