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fix infinite loading for image painter

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This commit is contained in:
Mikkel Troels Kongsted 2025-02-06 09:09:47 +01:00
parent eafabc8afa
commit e8c666412c
2 changed files with 10 additions and 5 deletions
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11
mobile/lib/pages/product_location_page.dart
View File

@ -1,5 +1,4 @@
import 'dart:ui' as ui; import 'dart:ui' as ui;
import 'package:flutter/material.dart'; import 'package:flutter/material.dart';
import 'package:mobile/repos/location_image.dart'; import 'package:mobile/repos/location_image.dart';
import 'package:mobile/repos/product.dart'; import 'package:mobile/repos/product.dart';
@ -21,7 +20,6 @@ class ProductLocationPage extends StatelessWidget {
], ],
), ),
Consumer<LocationImageRepo>(builder: (context, locationImage, child) { Consumer<LocationImageRepo>(builder: (context, locationImage, child) {
locationImage.load();
if (locationImage.image == null) { if (locationImage.image == null) {
return const CircularProgressIndicator( return const CircularProgressIndicator(
color: Colors.blue, color: Colors.blue,
@ -35,7 +33,6 @@ class ProductLocationPage extends StatelessWidget {
double parentWidth = constraints.maxWidth; double parentWidth = constraints.maxWidth;
final image = locationImage.image!; final image = locationImage.image!;
// Maintain aspect ratio
double imageWidth = image.width.toDouble(); double imageWidth = image.width.toDouble();
double imageHeight = image.height.toDouble(); double imageHeight = image.height.toDouble();
double scale = (parentWidth / imageWidth).clamp(0.0, 1.0); double scale = (parentWidth / imageWidth).clamp(0.0, 1.0);
@ -71,10 +68,14 @@ class LocationImagePainter extends CustomPainter {
canvas.drawImage(image, const Offset(0, 0), paint); canvas.drawImage(image, const Offset(0, 0), paint);
Paint circlePaint = Paint()..color = Colors.red; Paint circlePaint = Paint();
circlePaint.color = Colors.red;
canvas.drawCircle(Offset(location.x, location.y), 50, circlePaint); canvas.drawCircle(Offset(location.x, location.y), 50, circlePaint);
} }
@override @override
bool shouldRepaint(covariant CustomPainter oldDelegate) => true; bool shouldRepaint(covariant LocationImagePainter oldDelegate) {
return oldDelegate.image != image || oldDelegate.scale != scale;
}
} }

4
mobile/lib/repos/location_image.dart
View File

@ -6,6 +6,10 @@ import 'package:flutter/services.dart';
class LocationImageRepo extends ChangeNotifier { class LocationImageRepo extends ChangeNotifier {
ui.Image? image; ui.Image? image;
LocationImageRepo() {
load();
}
Future<void> load() async { Future<void> load() async {
final ByteData data = await rootBundle.load('assets/floor_plan.png'); final ByteData data = await rootBundle.load('assets/floor_plan.png');
final Uint8List list = data.buffer.asUint8List(); final Uint8List list = data.buffer.asUint8List();