45 lines
1 KiB
Dart
45 lines
1 KiB
Dart
import 'package:aves/widgets/common/magnifier/controller/state.dart';
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import 'package:equatable/equatable.dart';
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import 'package:flutter/widgets.dart';
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@immutable
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class ScaleStateChange extends Equatable {
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final ScaleState state;
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final ChangeSource source;
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final Offset? childFocalPoint;
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@override
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List<Object?> get props => [state, source, childFocalPoint];
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const ScaleStateChange({
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required this.state,
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required this.source,
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this.childFocalPoint,
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});
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}
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enum ScaleState {
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initial,
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covering,
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originalSize,
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zoomedIn,
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zoomedOut,
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}
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ScaleState defaultScaleStateCycle(ScaleState actual) {
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switch (actual) {
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case ScaleState.initial:
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return ScaleState.covering;
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case ScaleState.covering:
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return ScaleState.originalSize;
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case ScaleState.originalSize:
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return ScaleState.initial;
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case ScaleState.zoomedIn:
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case ScaleState.zoomedOut:
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return ScaleState.initial;
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default:
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return ScaleState.initial;
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}
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}
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typedef ScaleStateCycle = ScaleState Function(ScaleState actual);
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