tweaks

Signed-off-by: dom <githubaccount56556@proton.me>

lib/common/widgets/flutter/text_field/controller.dart

@@ -85,11 +85,9 @@ class RichTextEditingDeltaInsertion extends TextEditingDeltaInsertion
     this.emote,
     this.id,
     this.rawText,
-  }) {
-    this.type =
-        type ??
-        (composing.isValid ? RichTextType.composing : RichTextType.text);
-  }
+  }) : type =
+           type ??
+           (composing.isValid ? RichTextType.composing : RichTextType.text);
 
   @override
   late final RichTextType type;
@@ -116,11 +114,9 @@ class RichTextEditingDeltaReplacement extends TextEditingDeltaReplacement
     this.emote,
     this.id,
     this.rawText,
-  }) {
-    this.type =
-        type ??
-        (composing.isValid ? RichTextType.composing : RichTextType.text);
-  }
+  }) : type =
+           type ??
+           (composing.isValid ? RichTextType.composing : RichTextType.text);
 
   @override
   late final RichTextType type;
@@ -158,9 +154,7 @@ class RichTextItem {
     required this.range,
     this.emote,
     this.id,
-  }) {
-    _rawText = rawText;
-  }
+  }) : _rawText = rawText;
 
   RichTextItem.fromStart(
     this.text, {
@@ -168,10 +162,8 @@ class RichTextItem {
     this.type = RichTextType.text,
     this.emote,
     this.id,
-  }) {
-    range = TextRange(start: 0, end: text.length);
-    _rawText = rawText;
-  }
+  }) : range = TextRange(start: 0, end: text.length),
+       _rawText = rawText;
 
   List<RichTextItem>? onInsert(
     TextEditingDeltaInsertion delta,

lib/common/widgets/progress_bar/segment_progress_bar.dart

@@ -20,20 +20,22 @@ import 'package:flutter/gestures.dart' show TapGestureRecognizer;
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart' show BoxHitTestEntry;
 
+@immutable
 sealed class BaseSegment {
   final double start;
   final double end;
 
-  BaseSegment({
+  const BaseSegment({
     required this.start,
     required this.end,
   });
 }
 
+@immutable
 class Segment extends BaseSegment {
   final Color color;
 
-  Segment({
+  const Segment({
     required super.start,
     required super.end,
     required this.color,
@@ -54,13 +56,14 @@ class Segment extends BaseSegment {
   int get hashCode => Object.hash(start, end, color);
 }
 
+@immutable
 class ViewPointSegment extends BaseSegment {
   final String? title;
   final String? url;
   final int? from;
   final int? to;
 
-  ViewPointSegment({
+  const ViewPointSegment({
     required super.start,
     required super.end,
     this.title,

lib/common/widgets/scale_app.dart

@@ -18,7 +18,7 @@ class ScaledWidgetsFlutterBinding extends WidgetsFlutterBinding {
   double _scaleFactor;
 
   /// Update scaleFactor callback, then rebuild layout
-  void setScaleFactor(double scaleFactor) {
+  set scaleFactor(double scaleFactor) {
     if (_scaleFactor == scaleFactor) return;
     _scaleFactor = scaleFactor;
     handleMetricsChanged();