47 lines
1.6 KiB
Dart
47 lines
1.6 KiB
Dart
import 'package:json_annotation/json_annotation.dart';
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part 'chat_background_settings.g.dart';
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/// Source of the chat background.
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/// * [pattern] — the bundled tiled asset (legacy default, dark-mode inverted)
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/// * [image] — a user-picked image stored at [AppPaths.chatBackgroundImage]
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/// * [color] — a single solid colour ([ChatBackgroundSettings.colorValue])
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/// * [none] — plain theme surface colour
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enum ChatBackgroundType { pattern, image, color, none }
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/// How [ChatBackgroundType.pattern]/[ChatBackgroundType.image] fill the area.
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enum ChatBackgroundFit { cover, tile, center }
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@JsonSerializable()
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class ChatBackgroundSettings {
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ChatBackgroundType type;
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ChatBackgroundFit fit;
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/// ARGB colour for [ChatBackgroundType.color]; null until the user picks one.
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int? colorValue;
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/// Monotonically increasing cache-buster. The image lives under a constant
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/// filename, so Flutter's [ImageCache] can't tell a replacement apart — this
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/// counter drives a [ValueKey] that forces a fresh subtree after a swap.
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int imageVersion;
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/// Strength of the black dim overlay drawn above the background (0..1).
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double dim;
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/// Gaussian blur sigma applied to the pattern/image layer (0..~25).
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double blur;
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ChatBackgroundSettings({
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required this.type,
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required this.fit,
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required this.colorValue,
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required this.imageVersion,
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required this.dim,
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required this.blur,
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});
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factory ChatBackgroundSettings.fromJson(Map<String, dynamic> json) =>
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_$ChatBackgroundSettingsFromJson(json);
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Map<String, dynamic> toJson() => _$ChatBackgroundSettingsToJson(this);
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}
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