chore: better preset management and tooling

mobile/lib/constants/aspect_ratios.dart

@@ -1,19 +1,65 @@
 import 'package:flutter/material.dart';
 
-enum AspectRatioPreset {
-  free(ratio: null, label: 'Free', icon: Icons.crop_free_rounded),
-  square(ratio: 1.0, label: '1:1', icon: Icons.crop_square_rounded),
-  ratio16x9(ratio: 16 / 9, label: '16:9', icon: Icons.crop_16_9_rounded),
-  ratio3x2(ratio: 3 / 2, label: '3:2', icon: Icons.crop_3_2_rounded),
-  ratio7x5(ratio: 7 / 5, label: '7:5', icon: Icons.crop_7_5_rounded),
-  ratio9x16(ratio: 9 / 16, label: '9:16', icon: Icons.crop_16_9_rounded, iconRotated: true),
-  ratio2x3(ratio: 2 / 3, label: '2:3', icon: Icons.crop_3_2_rounded, iconRotated: true),
-  ratio5x7(ratio: 5 / 7, label: '5:7', icon: Icons.crop_7_5_rounded, iconRotated: true);
+class CropAspectRatio {
+  final int? numerator;
+  final int? denominator;
 
-  final double? ratio;
-  final String label;
-  final IconData icon;
-  final bool iconRotated;
+  final String? customLabel;
+  final IconData? icon;
 
-  const AspectRatioPreset({required this.ratio, required this.label, required this.icon, this.iconRotated = false});
+  const CropAspectRatio({this.numerator, this.denominator, this.customLabel, this.icon});
+
+  static const free = CropAspectRatio(customLabel: "Free", icon: Icons.crop_free);
+  static const original = CropAspectRatio(customLabel: "Original", icon: Icons.crop_original);
+
+  String get label {
+    return customLabel ?? (numerator != null && denominator != null ? '$numerator:$denominator' : 'Free');
+  }
+
+  bool get hasFlippedVariant => numerator != denominator;
+  double? get ratio => (numerator != null && denominator != null) ? numerator! / denominator! : null;
+
+  CropAspectRatio get flipped {
+    return CropAspectRatio(numerator: denominator, denominator: numerator, customLabel: customLabel, icon: icon);
+  }
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(this, other)) {
+      return true;
+    }
+
+    return other is CropAspectRatio &&
+        other.numerator == numerator &&
+        other.denominator == denominator &&
+        other.customLabel == customLabel &&
+        other.icon == icon;
+  }
+
+  @override
+  int get hashCode {
+    return numerator.hashCode ^ denominator.hashCode ^ customLabel.hashCode ^ icon.hashCode;
+  }
 }
+
+const aspectRatioFree = CropAspectRatio(customLabel: "Free", icon: Icons.crop_free);
+const aspectRatioOriginal = CropAspectRatio(customLabel: "Original", icon: Icons.crop_original);
+
+final aspectRatioPresets = [
+  CropAspectRatio.free,
+  CropAspectRatio.original,
+
+  const CropAspectRatio(numerator: 1, denominator: 1),
+
+  // lanscape
+  const CropAspectRatio(numerator: 16, denominator: 9),
+  const CropAspectRatio(numerator: 3, denominator: 2),
+  const CropAspectRatio(numerator: 7, denominator: 5),
+  const CropAspectRatio(numerator: 4, denominator: 3),
+
+  // portrait
+  const CropAspectRatio(numerator: 16, denominator: 9).flipped,
+  const CropAspectRatio(numerator: 3, denominator: 2).flipped,
+  const CropAspectRatio(numerator: 7, denominator: 5).flipped,
+  const CropAspectRatio(numerator: 4, denominator: 3).flipped,
+];

mobile/lib/presentation/pages/edit/drift_edit.page.dart

@@ -154,7 +154,7 @@ class _DriftEditImagePageState extends ConsumerState<DriftEditImagePage> with Ti
 }
 
 class _AspectRatioButton extends StatelessWidget {
-  final AspectRatioPreset ratio;
+  final CropAspectRatio ratio;
   final bool isSelected;
   final VoidCallback onPressed;
 
@@ -162,15 +162,16 @@ class _AspectRatioButton extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final color = isSelected ? context.primaryColor : context.themeData.iconTheme.color;
+
     return Column(
       mainAxisSize: MainAxisSize.max,
       children: [
         IconButton(
           iconSize: 36,
-          icon: Transform.rotate(
-            angle: ratio.iconRotated ? pi / 2 : 0,
-            child: Icon(ratio.icon, color: isSelected ? context.primaryColor : context.themeData.iconTheme.color),
-          ),
+          icon: ratio.ratio != null
+              ? _AspectRatioRect(ratio: ratio.ratio!, color: color)
+              : Icon(ratio.icon, color: color),
           onPressed: onPressed,
         ),
         Text(ratio.label, style: context.textTheme.displayMedium),
@@ -179,6 +180,32 @@ class _AspectRatioButton extends StatelessWidget {
   }
 }
 
+class _AspectRatioRect extends StatelessWidget {
+  final double ratio;
+  final Color? color;
+
+  const _AspectRatioRect({required this.ratio, required this.color});
+
+  @override
+  Widget build(BuildContext context) {
+    return SizedBox(
+      width: 28,
+      height: 28,
+      child: Center(
+        child: AspectRatio(
+          aspectRatio: ratio,
+          child: Container(
+            decoration: BoxDecoration(
+              border: Border.all(color: color ?? Colors.transparent, width: 3),
+              borderRadius: BorderRadius.circular(4),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}
+
 class _AspectRatioSelector extends ConsumerWidget {
   const _AspectRatioSelector();
 
@@ -187,22 +214,16 @@ class _AspectRatioSelector extends ConsumerWidget {
     final editorState = ref.watch(editorStateProvider);
     final editorNotifier = ref.read(editorStateProvider.notifier);
 
-    // the whole crop view is rotated, so we need to swap the aspect ratio when the rotation is 90 or 270 degrees
-    double? selectedAspectRatio = editorState.aspectRatio;
-    if (editorState.rotationAngle % 180 != 0 && selectedAspectRatio != null) {
-      selectedAspectRatio = 1 / selectedAspectRatio;
-    }
-
     return SingleChildScrollView(
       scrollDirection: Axis.horizontal,
       child: Row(
-        children: AspectRatioPreset.values.map((entry) {
+        children: aspectRatioPresets.map((entry) {
           return Padding(
             padding: const EdgeInsets.symmetric(horizontal: 8.0),
             child: _AspectRatioButton(
               ratio: entry,
-              isSelected: selectedAspectRatio == entry.ratio,
-              onPressed: () => editorNotifier.setAspectRatio(entry.ratio),
+              isSelected: editorState.aspectRatio == entry,
+              onPressed: () => editorNotifier.setAspectRatio(entry),
             ),
           );
         }).toList(),
@@ -357,8 +378,24 @@ class _EditorPreviewState extends ConsumerState<_EditorPreview> with TickerProvi
     final editorState = ref.watch(editorStateProvider);
     final editorNotifier = ref.read(editorStateProvider.notifier);
 
-    ref.listen(editorStateProvider, (_, current) {
-      cropController.aspectRatio = current.aspectRatio;
+    ref.listen(editorStateProvider, (previous, current) {
+      // Only re-apply the aspect ratio when it changes, otherwise the crop rect will shrink on every rotation
+      if (previous?.aspectRatio != current.aspectRatio) {
+        double? ratio;
+
+        switch (current.aspectRatio) {
+          case CropAspectRatio.original:
+            ratio = current.originalWidth / current.originalHeight;
+          default:
+            ratio = current.aspectRatio.ratio;
+        }
+
+        if (current.rotationAngle % 180 != 0) {
+          ratio = ratio != null ? 1 / ratio : null;
+        }
+
+        cropController.aspectRatio = ratio;
+      }
 
       if (cropController.crop != current.crop) {
         cropController.crop = current.crop;
@@ -386,7 +423,9 @@ class _EditorPreviewState extends ConsumerState<_EditorPreview> with TickerProvi
                   1.0,
                   1.0,
                 ),
-              child: Container(
+              child: AnimatedContainer(
+                duration: editorState.animationDuration,
+                curve: Curves.easeInOut,
                 padding: const EdgeInsets.all(10),
                 width: (editorState.rotationAngle % 180 == 0) ? baseWidth : baseHeight,
                 height: (editorState.rotationAngle % 180 == 0) ? baseHeight : baseWidth,

mobile/lib/presentation/pages/edit/editor.provider.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/services.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/constants/aspect_ratios.dart';
 import 'package:immich_mobile/domain/models/asset_edit.model.dart';
 import 'package:immich_mobile/domain/models/exif.model.dart';
 import 'package:immich_mobile/utils/editor.utils.dart';
@@ -60,13 +61,8 @@ class EditorProvider extends Notifier<EditorState> {
     state = state.copyWith(crop: crop, hasUnsavedEdits: true);
   }
 
-  void setAspectRatio(double? aspectRatio) {
-    if (aspectRatio != null && state.rotationAngle % 180 != 0) {
-      // When rotated 90 or 270 degrees, swap width and height for aspect ratio calculations
-      aspectRatio = 1 / aspectRatio;
-    }
-
-    state = state.copyWith(aspectRatio: aspectRatio);
+  void setAspectRatio(CropAspectRatio preset) {
+    state = state.copyWith(aspectRatio: preset, hasUnsavedEdits: true);
   }
 
   void resetEdits() {
@@ -76,19 +72,19 @@ class EditorProvider extends Notifier<EditorState> {
       flipHorizontal: false,
       flipVertical: false,
       crop: const Rect.fromLTRB(0, 0, 1, 1),
-      aspectRatio: null,
+      aspectRatio: CropAspectRatio.free,
       hasUnsavedEdits: true,
     );
   }
 
   void rotateCCW() {
     _animateRotation(state.rotationAngle - 90);
-    state = state.copyWith(hasUnsavedEdits: true);
+    state = state.copyWith(aspectRatio: state.aspectRatio.flipped, hasUnsavedEdits: true);
   }
 
   void rotateCW() {
     _animateRotation(state.rotationAngle + 90);
-    state = state.copyWith(hasUnsavedEdits: true);
+    state = state.copyWith(aspectRatio: state.aspectRatio.flipped, hasUnsavedEdits: true);
   }
 
   void flipHorizontally() {
@@ -117,7 +113,7 @@ class EditorState {
   final bool flipHorizontal;
   final bool flipVertical;
   final Rect crop;
-  final double? aspectRatio;
+  final CropAspectRatio aspectRatio;
 
   final int originalWidth;
   final int originalHeight;
@@ -132,7 +128,7 @@ class EditorState {
     bool? flipHorizontal,
     bool? flipVertical,
     Rect? crop,
-    this.aspectRatio,
+    CropAspectRatio? aspectRatio,
     int? originalWidth,
     int? originalHeight,
     Duration? animationDuration,
@@ -145,6 +141,7 @@ class EditorState {
        originalWidth = originalWidth ?? 0,
        originalHeight = originalHeight ?? 0,
        crop = crop ?? const Rect.fromLTRB(0, 0, 1, 1),
+       aspectRatio = aspectRatio ?? CropAspectRatio.free,
        hasUnsavedEdits = hasUnsavedEdits ?? false;
 
   EditorState copyWith({
@@ -152,7 +149,7 @@ class EditorState {
     int? rotationAngle,
     bool? flipHorizontal,
     bool? flipVertical,
-    double? aspectRatio = double.infinity,
+    CropAspectRatio? aspectRatio,
     int? originalWidth,
     int? originalHeight,
     Duration? animationDuration,
@@ -164,7 +161,7 @@ class EditorState {
       rotationAngle: rotationAngle ?? this.rotationAngle,
       flipHorizontal: flipHorizontal ?? this.flipHorizontal,
       flipVertical: flipVertical ?? this.flipVertical,
-      aspectRatio: aspectRatio == double.infinity ? this.aspectRatio : aspectRatio,
+      aspectRatio: aspectRatio ?? this.aspectRatio,
       animationDuration: animationDuration ?? this.animationDuration,
       originalWidth: originalWidth ?? this.originalWidth,
       originalHeight: originalHeight ?? this.originalHeight,