87 lines
2.4 KiB
Dart
87 lines
2.4 KiB
Dart
import 'dart:math' as math;
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import 'package:aves/widgets/editor/transform/crop_region.dart';
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import 'package:aves_model/aves_model.dart';
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import 'package:equatable/equatable.dart';
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import 'package:flutter/foundation.dart';
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import 'package:latlong2/latlong.dart';
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import 'package:vector_math/vector_math_64.dart';
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@immutable
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class Transformation extends Equatable {
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final TransformOrientation orientation;
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final double straightenDegrees;
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final CropRegion region;
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@override
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List<Object?> get props => [orientation, straightenDegrees, region];
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static const zero = Transformation(
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orientation: TransformOrientation.normal,
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straightenDegrees: 0,
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region: CropRegion.zero,
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);
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const Transformation({
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required this.orientation,
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required this.straightenDegrees,
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required this.region,
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});
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Transformation copyWith({
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TransformOrientation? orientation,
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double? straightenDegrees,
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CropRegion? region,
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}) {
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return Transformation(
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orientation: orientation ?? this.orientation,
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straightenDegrees: straightenDegrees ?? this.straightenDegrees,
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region: region ?? this.region,
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);
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}
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Matrix4 get matrix => _orientationMatrix..multiply(_straightenMatrix);
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Matrix4 get _orientationMatrix {
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final matrix = Matrix4.identity();
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switch (orientation) {
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case TransformOrientation.normal:
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break;
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case TransformOrientation.rotate90:
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matrix.rotateZ(math.pi / 2);
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break;
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case TransformOrientation.rotate180:
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matrix.rotateZ(math.pi);
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break;
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case TransformOrientation.rotate270:
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matrix.rotateZ(3 * math.pi / 2);
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break;
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case TransformOrientation.transverse:
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matrix.scale(-1.0, 1.0, 1.0);
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matrix.rotateZ(-3 * math.pi / 2);
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break;
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case TransformOrientation.flipVertical:
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matrix.scale(1.0, -1.0, 1.0);
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break;
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case TransformOrientation.transpose:
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matrix.scale(-1.0, 1.0, 1.0);
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matrix.rotateZ(-1 * math.pi / 2);
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break;
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case TransformOrientation.flipHorizontal:
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matrix.scale(-1.0, 1.0, 1.0);
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break;
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}
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return matrix;
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}
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Matrix4 get _straightenMatrix => Matrix4.rotationZ(degToRadian((orientation.isFlipped ? -1 : 1) * straightenDegrees));
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}
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@immutable
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class TransformEvent {
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final TransformActivity activity;
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const TransformEvent({
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required this.activity,
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});
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}
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