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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'; import 'package:lightmeter/res/dimens.dart';
class CameraSpotDetector extends StatefulWidget { class CameraSpotDetector extends StatefulWidget {
final ValueChanged<Offset> onSpotTap; final ValueChanged<Offset?> onSpotTap;
const CameraSpotDetector({ const CameraSpotDetector({
required this.onSpotTap, required this.onSpotTap,
@ -22,6 +22,7 @@ class _CameraSpotDetectorState extends State<CameraSpotDetector> {
builder: (_, constraints) => GestureDetector( builder: (_, constraints) => GestureDetector(
behavior: HitTestBehavior.opaque, behavior: HitTestBehavior.opaque,
onTapDown: (TapDownDetails details) => onViewFinderTap(details, constraints), onTapDown: (TapDownDetails details) => onViewFinderTap(details, constraints),
onLongPress: () => onViewFinderTap(null, constraints),
child: Stack( child: Stack(
children: [ children: [
if (spot != null) 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(() { setState(() {
spot = details.localPosition; spot = details?.localPosition;
}); });
widget.onSpotTap( widget.onSpotTap(
Offset( details != null
details.localPosition.dx / constraints.maxWidth, ? Offset(
details.localPosition.dy / constraints.maxHeight, 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 { class CameraPreview extends StatefulWidget {
final CameraController? controller; final CameraController? controller;
final CameraErrorType? error; final CameraErrorType? error;
final ValueChanged<Offset> onSpotTap; final ValueChanged<Offset?> onSpotTap;
const CameraPreview({ const CameraPreview({
this.controller, this.controller,
@ -53,7 +53,7 @@ class _CameraPreviewState extends State<CameraPreview> {
class _CameraPreviewBuilder extends StatefulWidget { class _CameraPreviewBuilder extends StatefulWidget {
final CameraController controller; final CameraController controller;
final ValueChanged<Offset> onSpotTap; final ValueChanged<Offset?> onSpotTap;
const _CameraPreviewBuilder({ const _CameraPreviewBuilder({
required this.controller, 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 { class ExposureSpotChangedEvent extends CameraContainerEvent {
final Offset offset; final Offset? offset;
const ExposureSpotChangedEvent(this.offset); const ExposureSpotChangedEvent(this.offset);