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added long press to remove metering spot

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This commit is contained in:
Vadim 2023-11-08 13:18:32 +01:00
parent e029cea713
commit d5b9448c89
3 changed files with 13 additions and 10 deletions
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17
lib/screens/metering/components/camera_container/components/camera_preview/components/camera_spot_detector/widget_camera_spot_detector.dart
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@ -2,7 +2,7 @@ import 'package:flutter/material.dart';
import 'package:lightmeter/res/dimens.dart';
class CameraSpotDetector extends StatefulWidget {
final ValueChanged<Offset> onSpotTap;
final ValueChanged<Offset?> onSpotTap;
const CameraSpotDetector({
required this.onSpotTap,
@ -22,6 +22,7 @@ class _CameraSpotDetectorState extends State<CameraSpotDetector> {
builder: (_, constraints) => GestureDetector(
behavior: HitTestBehavior.opaque,
onTapDown: (TapDownDetails details) => onViewFinderTap(details, constraints),
onLongPress: () => onViewFinderTap(null, constraints),
child: Stack(
children: [
if (spot != null)
@ -39,16 +40,18 @@ class _CameraSpotDetectorState extends State<CameraSpotDetector> {
);
}
void onViewFinderTap(TapDownDetails details, BoxConstraints constraints) {
void onViewFinderTap(TapDownDetails? details, BoxConstraints constraints) {
setState(() {
spot = details.localPosition;
spot = details?.localPosition;
});
widget.onSpotTap(
Offset(
details.localPosition.dx / constraints.maxWidth,
details.localPosition.dy / constraints.maxHeight,
),
details != null
? Offset(
details.localPosition.dx / constraints.maxWidth,
details.localPosition.dy / constraints.maxHeight,
)
: null,
);
}
}

4
lib/screens/metering/components/camera_container/components/camera_preview/widget_camera_preview.dart
View file

@ -13,7 +13,7 @@ import 'package:lightmeter/screens/metering/components/camera_container/models/c
class CameraPreview extends StatefulWidget {
final CameraController? controller;
final CameraErrorType? error;
final ValueChanged<Offset> onSpotTap;
final ValueChanged<Offset?> onSpotTap;
const CameraPreview({
this.controller,
@ -53,7 +53,7 @@ class _CameraPreviewState extends State<CameraPreview> {
class _CameraPreviewBuilder extends StatefulWidget {
final CameraController controller;
final ValueChanged<Offset> onSpotTap;
final ValueChanged<Offset?> onSpotTap;
const _CameraPreviewBuilder({
required this.controller,

2
lib/screens/metering/components/camera_container/event_container_camera.dart
View file

@ -57,7 +57,7 @@ class ExposureOffsetResetEvent extends CameraContainerEvent {
}
class ExposureSpotChangedEvent extends CameraContainerEvent {
final Offset offset;
final Offset? offset;
const ExposureSpotChangedEvent(this.offset);