dellevin/MookNote
1
0
Fork 0
generated from dellevin/template
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

加入新图标，优化通知栏，统计界面加入标签词云

Browse Source
This commit is contained in:
DelLevin-Home
2026-05-26 21:24:14 +08:00
parent 73f3795e65
commit daf66bd737
17 changed files with 766 additions and 403 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
android/app/src/main/AndroidManifest.xml
View File

@@ -48,6 +48,21 @@
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity-alias>
<!-- 图标3: M 风格 -->
<activity-alias
android:name=".MainActivityIcon3"
android:targetActivity=".MainActivity"
android:enabled="false"
android:exported="true"
android:icon="@mipmap/ic_launcher_m"
android:roundIcon="@mipmap/ic_launcher_m"
android:label="MookNote">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity-alias>
<meta-data
android:name="flutterEmbedding"

24
android/app/src/main/kotlin/top/iletter/mooknote/MainActivity.kt
View File

@@ -36,26 +36,30 @@ class MainActivity : FlutterActivity() {
val pm = packageManager
val icon1 = ComponentName(this, "${packageName}.MainActivityIcon1")
val icon2 = ComponentName(this, "${packageName}.MainActivityIcon2")
val icon3 = ComponentName(this, "${packageName}.MainActivityIcon3")
when (iconName) {
"app_icon2" -> {
pm.setComponentEnabledSetting(icon1, PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP)
pm.setComponentEnabledSetting(icon2, PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP)
}
else -> {
pm.setComponentEnabledSetting(icon2, PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP)
pm.setComponentEnabledSetting(icon1, PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP)
}
// 先全部禁用
pm.setComponentEnabledSetting(icon1, PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP)
pm.setComponentEnabledSetting(icon2, PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP)
pm.setComponentEnabledSetting(icon3, PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP)
// 启用选中的
val target = when (iconName) {
"app_icon2" -> icon2
"app_icon_m" -> icon3
else -> icon1
}
pm.setComponentEnabledSetting(target, PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP)
}
private fun getCurrentIcon(): String {
val pm = packageManager
val icon1 = ComponentName(this, "${packageName}.MainActivityIcon1")
val icon2 = ComponentName(this, "${packageName}.MainActivityIcon2")
val icon3 = ComponentName(this, "${packageName}.MainActivityIcon3")
return when {
pm.getComponentEnabledSetting(icon2) == PackageManager.COMPONENT_ENABLED_STATE_ENABLED -> "app_icon2"
pm.getComponentEnabledSetting(icon3) == PackageManager.COMPONENT_ENABLED_STATE_ENABLED -> "app_icon_m"
else -> "app_icon"
}
}

BIN
android/app/src/main/res/mipmap-hdpi/ic_launcher_m.png Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 355 B

BIN
android/app/src/main/res/mipmap-mdpi/ic_launcher_m.png Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 239 B

BIN
android/app/src/main/res/mipmap-xhdpi/ic_launcher_m.png Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 447 B

BIN
android/app/src/main/res/mipmap-xxhdpi/ic_launcher_m.png Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 829 B

BIN
android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_m.png Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 1.3 KiB

BIN
assets/icon/app_icon_m.png Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 12 KiB

9
lib/main.dart
View File

@@ -57,15 +57,21 @@ class _MyAppState extends State<MyApp> with WidgetsBindingObserver {
super.initState();
WidgetsBinding.instance.addObserver(this);
widget.appProvider.loadThemeMode();
widget.appProvider.addListener(_onThemeChanged);
_updateSystemUI(widget.appProvider.themeMode);
}
@override
void dispose() {
widget.appProvider.removeListener(_onThemeChanged);
WidgetsBinding.instance.removeObserver(this);
super.dispose();
}
void _onThemeChanged() {
_updateSystemUI(widget.appProvider.themeMode);
}
@override
void didChangeAppLifecycleState(AppLifecycleState state) {
if (state == AppLifecycleState.resumed) {
@@ -85,6 +91,8 @@ class _MyAppState extends State<MyApp> with WidgetsBindingObserver {
}
final isDark = brightness == Brightness.dark;
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
statusBarColor: Colors.transparent,
statusBarIconBrightness: isDark ? Brightness.light : Brightness.dark,
systemNavigationBarColor: isDark ? const Color(0xFF1A1A1A) : Colors.white,
systemNavigationBarIconBrightness: isDark ? Brightness.light : Brightness.dark,
));
@@ -100,7 +108,6 @@ class _MyAppState extends State<MyApp> with WidgetsBindingObserver {
],
child: Consumer<AppProvider>(
builder: (context, provider, _) {
_updateSystemUI(provider.themeMode);
return MaterialApp(
title: 'MookNote',
debugShowCheckedModeBanner: false,

104
lib/pages/app_icon_picker_page.dart
View File

@@ -18,6 +18,7 @@ class _AppIconPickerPageState extends State<AppIconPickerPage> {
final List<Map<String, String>> _icons = [
{'name': 'app_icon', 'label': '默认图标'},
{'name': 'app_icon2', 'label': '风格二'},
{'name': 'app_icon_m', 'label': '风格三'},
];
@override
@@ -28,35 +29,22 @@ class _AppIconPickerPageState extends State<AppIconPickerPage> {
Future<void> _loadCurrentIcon() async {
final nativeIcon = await AppIconChannel.getCurrentIcon();
setState(() {
_currentIconName = nativeIcon;
});
setState(() => _currentIconName = nativeIcon);
}
Future<void> _selectIcon(String iconName) async {
if (iconName == _currentIconName) return;
try {
final success = await AppIconChannel.switchIcon(iconName);
if (success) {
await _userPrefs.setAppIconName(iconName);
setState(() {
_currentIconName = iconName;
});
if (mounted) {
ToastUtil.show(context, '图标已切换，请返回桌面查看');
}
setState(() => _currentIconName = iconName);
if (mounted) ToastUtil.show(context, '图标已切换，请返回桌面查看');
} else {
if (mounted) {
ToastUtil.show(context, '图标切换失败');
}
if (mounted) ToastUtil.show(context, '图标切换失败');
}
} catch (e) {
if (mounted) {
ToastUtil.show(context, '切换出错: $e');
}
if (mounted) ToastUtil.show(context, '切换出错: $e');
}
}
@@ -64,66 +52,68 @@ class _AppIconPickerPageState extends State<AppIconPickerPage> {
Widget build(BuildContext context) {
final colors = Theme.of(context).colorScheme;
return Scaffold(
backgroundColor: colors.surface,
backgroundColor: colors.surfaceContainerHigh,
appBar: AppBar(
title: const Text('应用图标'),
),
body: GridView.builder(
padding: const EdgeInsets.all(24),
gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 2,
childAspectRatio: 0.85,
crossAxisSpacing: 16,
mainAxisSpacing: 16,
),
body: ListView.builder(
padding: const EdgeInsets.symmetric(vertical: 12),
itemCount: _icons.length,
itemBuilder: (context, index) {
final icon = _icons[index];
final isSelected = _currentIconName == icon['name'];
return GestureDetector(
return InkWell(
onTap: () => _selectIcon(icon['name']!),
child: Container(
margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 6),
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
decoration: BoxDecoration(
color: isSelected ? colors.outlineVariant : colors.surfaceContainerHigh,
borderRadius: BorderRadius.circular(16),
color: colors.surface,
borderRadius: BorderRadius.circular(12),
border: Border.all(
color: isSelected ? colors.primary : colors.outlineVariant,
width: isSelected ? 2 : 1,
color: isSelected ? colors.primary : Colors.transparent,
width: isSelected ? 2 : 0,
),
),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
child: Row(
children: [
Image.asset(
'assets/icon/${icon['name']}.png',
Container(
width: 64,
height: 64,
errorBuilder: (context, error, stackTrace) {
return Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(14),
border: Border.all(color: colors.outlineVariant, width: 0.5),
),
clipBehavior: Clip.antiAlias,
child: Image.asset(
'assets/icon/${icon['name']}.png',
width: 64,
height: 64,
fit: BoxFit.cover,
errorBuilder: (_, __, ___) => Container(
width: 64,
height: 64,
decoration: BoxDecoration(
color: colors.outlineVariant,
borderRadius: BorderRadius.circular(12),
),
child: Icon(Icons.image_not_supported, color: colors.onSurface.withValues(alpha: 0.4)),
);
},
),
const SizedBox(height: 12),
Text(
icon['label']!,
style: TextStyle(
fontSize: 14,
fontWeight: isSelected ? FontWeight.w600 : FontWeight.normal,
color: colors.onSurface,
color: colors.surfaceContainerHighest,
child: Icon(Icons.image_not_supported, size: 24, color: colors.onSurface.withValues(alpha: 0.3)),
),
),
),
if (isSelected) ...[
const SizedBox(height: 4),
Icon(Icons.check_circle, size: 18, color: colors.primary),
],
const SizedBox(width: 16),
Expanded(
child: Text(
icon['label']!,
style: TextStyle(
fontSize: 15,
fontWeight: FontWeight.w500,
color: colors.onSurface,
),
),
),
if (isSelected)
Icon(Icons.check_circle, size: 22, color: colors.primary)
else
Icon(Icons.radio_button_unchecked, size: 22, color: colors.onSurface.withValues(alpha: 0.2)),
],
),
),

37
lib/pages/movies/movie_detail_page.dart
View File

@@ -9,6 +9,7 @@ import 'package:permission_handler/permission_handler.dart';
import '../../providers/app_provider.dart';
import '../../models/data_models.dart';
import '../../utils/toast_util.dart';
import '../../utils/user_prefs.dart';
import 'movie_reviews_page.dart';
import 'movie_posters_page.dart';
import 'movie_share_page.dart';
@@ -24,15 +25,17 @@ class MovieDetailPage extends StatefulWidget {
}
class _MovieDetailPageState extends State<MovieDetailPage> {
late bool _showExactDate;
@override
void didChangeDependencies() {
super.didChangeDependencies();
_refreshMovieData();
void initState() {
super.initState();
_showExactDate = UserPrefs().showExactReleaseDate;
}
void _refreshMovieData() {
final provider = context.read<AppProvider>();
provider.loadMovies();
void _toggleDateDisplay() {
setState(() => _showExactDate = !_showExactDate);
UserPrefs().setShowExactReleaseDate(_showExactDate);
}
@override
@@ -275,11 +278,23 @@ class _MovieDetailPageState extends State<MovieDetailPage> {
),
const SizedBox(height: 8),
if (movie.releaseDate != null)
Text(
'${movie.releaseDate!.year}年${movie.releaseDate!.month.toString().padLeft(2, '0')}月上映',
style: TextStyle(
fontSize: 14,
color: colors.onSurface.withValues(alpha: 0.4),
GestureDetector(
onTap: _toggleDateDisplay,
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
Text(
_showExactDate
? '${movie.releaseDate!.year}年${movie.releaseDate!.month.toString().padLeft(2, '0')}月${movie.releaseDate!.day.toString().padLeft(2, '0')}日上映'
: '${movie.releaseDate!.year}年${movie.releaseDate!.month.toString().padLeft(2, '0')}月上映',
style: TextStyle(
fontSize: 14,
color: colors.onSurface.withValues(alpha: 0.4),
),
),
const SizedBox(width: 4),
Icon(Icons.tune, size: 14, color: colors.onSurface.withValues(alpha: 0.2)),
],
),
),
const SizedBox(height: 8),

267
lib/pages/movies/movie_review_detail_page.dart
View File

@@ -1,7 +1,9 @@
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../../models/data_models.dart';
import '../../providers/app_provider.dart';
import '../../utils/toast_util.dart';
import 'movie_review_form_page.dart';
/// 影评详情页
@@ -28,162 +30,149 @@ class _MovieReviewDetailPageState extends State<MovieReviewDetailPage> {
_review = widget.review;
}
@override
void didChangeDependencies() {
super.didChangeDependencies();
_refreshReviewData();
}
Future<void> _refreshReviewData() async {
final provider = context.read<AppProvider>();
final reviews = await provider.getMovieReviews(widget.movieId);
final updatedReview = reviews
.where((r) => r.id == widget.review.id)
.firstOrNull;
final updatedReview = reviews.where((r) => r.id == widget.review.id).firstOrNull;
if (updatedReview != null && updatedReview.id == _review.id) {
setState(() {
_review = updatedReview;
});
setState(() => _review = updatedReview);
}
}
@override
Widget build(BuildContext context) {
final colors = Theme.of(context).colorScheme;
return Scaffold(
backgroundColor: colors.surface,
appBar: AppBar(
title: const Text('影评详情'),
actions: [
// 编辑按钮
IconButton(
icon: const Icon(Icons.edit_outlined),
onPressed: () => _navigateToEdit(context),
),
const SizedBox(width: 8),
],
),
body: SingleChildScrollView(
padding: const EdgeInsets.all(24),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// 影评内容
Text(
_review.content,
style: TextStyle(
fontSize: 16,
color: colors.onSurface,
height: 1.8,
),
),
const SizedBox(height: 32),
// 分隔线
Container(
height: 0.5,
color: colors.outline,
),
const SizedBox(height: 24),
// 影评人
_buildInfoRow(
icon: Icons.person_outline,
label: '影评人：',
value: _review.reviewer.isNotEmpty ? _review.reviewer : '匿名',
colors: colors,
),
const SizedBox(height: 16),
// 来源
if (_review.source.isNotEmpty)
_buildInfoRow(
icon: Icons.source_outlined,
label: '来源：',
value: _review.source,
colors: colors,
),
if (_review.source.isNotEmpty) const SizedBox(height: 16),
// 类型
_buildInfoRow(
icon: Icons.category_outlined,
label: '类型：',
value: _review.typeText,
colors: colors,
),
const SizedBox(height: 16),
// 时间
_buildInfoRow(
icon: Icons.access_time,
label: '时间：',
value: _formatDate(_review.createdAt),
colors: colors,
),
],
),
),
);
Movie? _getMovie() {
return context.read<AppProvider>().movies.where((m) => m.id == widget.movieId).firstOrNull;
}
/// 构建信息行
Widget _buildInfoRow({
required IconData icon,
required String label,
required String value,
required ColorScheme colors,
}) {
return Row(
children: [
Icon(
icon,
size: 20,
color: colors.onSurface.withValues(alpha: 0.4),
),
const SizedBox(width: 12),
// 固定宽度容器，以"影评人："的最大宽度为准
SizedBox(
width: 64,
child: Text(
label,
style: TextStyle(
fontSize: 14,
color: colors.onSurface.withValues(alpha: 0.4),
),
Future<void> _deleteReview() async {
final colors = Theme.of(context).colorScheme;
final confirmed = await showDialog<bool>(
context: context,
builder: (ctx) => AlertDialog(
backgroundColor: colors.surface,
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
title: Text('确认删除', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: colors.onSurface)),
content: Text('确定要删除这条影评吗？', style: TextStyle(fontSize: 14, color: colors.onSurface.withValues(alpha: 0.6))),
actions: [
TextButton(onPressed: () => Navigator.pop(ctx, false), child: Text('取消', style: TextStyle(color: colors.onSurface.withValues(alpha: 0.5)))),
ElevatedButton(
onPressed: () => Navigator.pop(ctx, true),
style: ElevatedButton.styleFrom(backgroundColor: colors.error, foregroundColor: colors.onError, elevation: 0, shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8))),
child: const Text('删除'),
),
),
Expanded(
child: Text(
value,
style: TextStyle(
fontSize: 15,
color: colors.onSurface,
),
),
),
],
],
),
);
if (confirmed == true) {
await context.read<AppProvider>().removeMovieReview(_review.id);
if (mounted) { ToastUtil.show(context, '已删除'); Navigator.pop(context); }
}
}
void _navigateToEdit(BuildContext context) {
Navigator.push(
context,
MaterialPageRoute(builder: (_) => MovieReviewFormPage(movieId: widget.movieId, review: _review)),
).then((_) => _refreshReviewData());
}
String _formatDate(DateTime date) {
return '${date.year}.${date.month.toString().padLeft(2, '0')}.${date.day.toString().padLeft(2, '0')}';
}
void _navigateToEdit(BuildContext context) {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => MovieReviewFormPage(
movieId: widget.movieId,
review: _review,
),
@override
Widget build(BuildContext context) {
final colors = Theme.of(context).colorScheme;
final movie = _getMovie();
return Scaffold(
backgroundColor: colors.surfaceContainerHigh,
appBar: AppBar(
title: const Text('影评详情'),
actions: [
IconButton(icon: const Icon(Icons.edit_outlined, size: 20), onPressed: () => _navigateToEdit(context), tooltip: '编辑'),
IconButton(icon: Icon(Icons.delete_outline, size: 20, color: colors.error.withValues(alpha: 0.7)), onPressed: _deleteReview, tooltip: '删除'),
const SizedBox(width: 4),
],
),
).then((_) => _refreshReviewData());
body: SingleChildScrollView(
padding: const EdgeInsets.all(16),
child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
// ── 电影信息卡片 ──────────────────────
if (movie != null) _buildMovieCard(movie, colors),
if (movie != null) const SizedBox(height: 16),
// ── 影评内容卡片 ──────────────────────
_buildContentCard(colors),
const SizedBox(height: 16),
// ── 元信息卡片 ────────────────────────
_buildInfoCard(colors),
]),
),
);
}
Widget _buildMovieCard(Movie movie, ColorScheme colors) => Container(
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(color: colors.surface, borderRadius: BorderRadius.circular(12)),
child: Row(children: [
Container(
width: 52, height: 68,
decoration: BoxDecoration(borderRadius: BorderRadius.circular(6), color: colors.surfaceContainerHighest),
clipBehavior: Clip.antiAlias,
child: movie.posterPath != null
? Image.file(File(movie.posterPath!), fit: BoxFit.cover, errorBuilder: (_, __, ___) => Icon(Icons.movie_outlined, size: 22, color: colors.onSurface.withValues(alpha: 0.25)))
: Icon(Icons.movie_outlined, size: 22, color: colors.onSurface.withValues(alpha: 0.25)),
),
const SizedBox(width: 12),
Expanded(child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
Text(movie.title, style: TextStyle(fontSize: 15, fontWeight: FontWeight.w600, color: colors.onSurface), maxLines: 2, overflow: TextOverflow.ellipsis),
if (movie.rating != null) ...[const SizedBox(height: 4), Row(children: [
Icon(Icons.star, size: 14, color: const Color(0xFFFFB800)),
const SizedBox(width: 2),
Text('${movie.rating}', style: TextStyle(fontSize: 13, fontWeight: FontWeight.w600, color: colors.onSurface.withValues(alpha: 0.6))),
])],
])),
]),
);
Widget _buildContentCard(ColorScheme colors) => Container(
width: double.infinity,
padding: const EdgeInsets.all(20),
decoration: BoxDecoration(color: colors.surface, borderRadius: BorderRadius.circular(12)),
child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
Text(_review.content, style: TextStyle(fontSize: 16, color: colors.onSurface, height: 1.8)),
const SizedBox(height: 16),
Row(children: [
Container(
padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 3),
decoration: BoxDecoration(color: colors.primary.withValues(alpha: 0.1), borderRadius: BorderRadius.circular(10)),
child: Text(_review.typeText, style: TextStyle(fontSize: 12, fontWeight: FontWeight.w500, color: colors.primary)),
),
]),
]),
);
Widget _buildInfoCard(ColorScheme colors) => Container(
width: double.infinity,
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(color: colors.surface, borderRadius: BorderRadius.circular(12)),
child: Column(children: [
_infoRow(Icons.person_outline, '影评人', _review.reviewer.isNotEmpty ? _review.reviewer : '匿名', colors),
Divider(height: 24, color: colors.outlineVariant),
if (_review.source.isNotEmpty) ...[
_infoRow(Icons.link, '来源', _review.source, colors),
const Divider(height: 24),
],
_infoRow(Icons.access_time, '时间', _formatDate(_review.createdAt), colors),
]),
);
Widget _infoRow(IconData icon, String label, String value, ColorScheme colors) => Row(children: [
Icon(icon, size: 18, color: colors.onSurface.withValues(alpha: 0.35)),
const SizedBox(width: 10),
Text(label, style: TextStyle(fontSize: 14, color: colors.onSurface.withValues(alpha: 0.4))),
const Spacer(),
Text(value, style: TextStyle(fontSize: 14, fontWeight: FontWeight.w500, color: colors.onSurface)),
]);
}

396
lib/pages/movies/movie_review_form_page.dart
View File

@@ -1,19 +1,16 @@
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../../providers/app_provider.dart';
import '../../models/data_models.dart';
import '../../utils/toast_util.dart';
/// 添加/编辑影评页面 - 极简设计
/// 添加/编辑影评页面
class MovieReviewFormPage extends StatefulWidget {
final String movieId;
final MovieReview? review;
const MovieReviewFormPage({
super.key,
required this.movieId,
this.review,
});
const MovieReviewFormPage({super.key, required this.movieId, this.review});
@override
State<MovieReviewFormPage> createState() => _MovieReviewFormPageState();
@@ -29,11 +26,10 @@ class _MovieReviewFormPageState extends State<MovieReviewFormPage> {
@override
void initState() {
super.initState();
final review = widget.review;
_contentController = TextEditingController(text: review?.content ?? '');
_reviewerController = TextEditingController(text: review?.reviewer ?? '');
_sourceController = TextEditingController(text: review?.source ?? '');
_reviewType = review?.reviewType ?? 1;
_contentController = TextEditingController(text: widget.review?.content ?? '');
_reviewerController = TextEditingController(text: widget.review?.reviewer ?? '');
_sourceController = TextEditingController(text: widget.review?.source ?? '');
_reviewType = widget.review?.reviewType ?? 1;
}
@override
@@ -44,107 +40,92 @@ class _MovieReviewFormPageState extends State<MovieReviewFormPage> {
super.dispose();
}
Movie? _getMovie() {
return context.read<AppProvider>().movies.where((m) => m.id == widget.movieId).firstOrNull;
}
// ═══════════════════════════════════════════════════════════════════
@override
Widget build(BuildContext context) {
final colors = Theme.of(context).colorScheme;
final isEdit = widget.review != null;
final movie = _getMovie();
return Scaffold(
backgroundColor: colors.surface,
appBar: AppBar(
title: Text(isEdit ? '编辑影评' : '写影评'),
actions: [
TextButton(
onPressed: _saveReview,
child: const Text(
'保存',
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.w500,
),
),
),
const SizedBox(width: 8),
],
),
body: Form(
key: _formKey,
child: Column(
children: [
// 顶部信息栏
Container(
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(color: colors.outline, width: 0.5),
),
),
child: Row(
children: [
// 类型选择
_buildTypeSelector(colors),
const SizedBox(width: 16),
// 评论人
Expanded(
child: TextField(
controller: _reviewerController,
style: TextStyle(fontSize: 14, color: colors.onSurface),
decoration: InputDecoration(
hintText: '评论人',
hintStyle: TextStyle(fontSize: 14, color: colors.onSurface.withValues(alpha: 0.25)),
border: InputBorder.none,
isDense: true,
contentPadding: EdgeInsets.zero,
),
),
),
const SizedBox(width: 16),
// 来源
SizedBox(
width: 100,
child: TextField(
controller: _sourceController,
style: TextStyle(fontSize: 14, color: colors.onSurface),
decoration: InputDecoration(
hintText: '来源',
hintStyle: TextStyle(fontSize: 14, color: colors.onSurface.withValues(alpha: 0.25)),
border: InputBorder.none,
isDense: true,
contentPadding: EdgeInsets.zero,
),
),
),
],
),
),
// 评论内容区域
Expanded(
child: TextFormField(
controller: _contentController,
maxLines: null,
expands: true,
textAlignVertical: TextAlignVertical.top,
style: TextStyle(
fontSize: 16,
color: colors.onSurface,
height: 1.7,
child: SingleChildScrollView(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// ── 电影信息卡片 ──────────────────
if (movie != null) _buildMovieCard(movie, colors),
const SizedBox(height: 20),
// ── 类型选择 ──────────────────────
Text('影评类型', style: TextStyle(fontSize: 13, fontWeight: FontWeight.w500, color: colors.onSurface.withValues(alpha: 0.5))),
const SizedBox(height: 8),
_buildTypeSelector(colors),
const SizedBox(height: 20),
// ── 元信息 ────────────────────────
_buildMetaField(
icon: Icons.person_outline,
hint: '评论人（选填）',
controller: _reviewerController,
colors: colors,
),
const SizedBox(height: 12),
_buildMetaField(
icon: Icons.link,
hint: '来源（选填）',
controller: _sourceController,
colors: colors,
),
const SizedBox(height: 20),
// ── 评论内容 ──────────────────────
Text('评论内容', style: TextStyle(fontSize: 13, fontWeight: FontWeight.w500, color: colors.onSurface.withValues(alpha: 0.5))),
const SizedBox(height: 8),
_buildContentField(colors),
],
),
decoration: InputDecoration(
hintText: '写下你的影评...',
hintStyle: TextStyle(
fontSize: 16,
color: colors.onSurface.withValues(alpha: 0.25),
),
),
// ── 底部保存按钮 ──────────────────────
Container(
padding: EdgeInsets.only(
left: 16, right: 16, top: 12,
bottom: MediaQuery.of(context).padding.bottom + 12,
),
decoration: BoxDecoration(
color: colors.surface,
border: Border(top: BorderSide(color: colors.outlineVariant, width: 0.5)),
),
child: SizedBox(
width: double.infinity,
height: 48,
child: ElevatedButton(
onPressed: _saveReview,
style: ElevatedButton.styleFrom(
backgroundColor: colors.primary,
foregroundColor: colors.onPrimary,
elevation: 0,
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
),
border: InputBorder.none,
contentPadding: const EdgeInsets.all(16),
child: Text(isEdit ? '更新影评' : '保存影评',
style: const TextStyle(fontSize: 16, fontWeight: FontWeight.w600)),
),
validator: (value) {
if (value == null || value.trim().isEmpty) {
return '请输入评论内容';
}
return null;
},
),
),
],
@@ -153,84 +134,173 @@ class _MovieReviewFormPageState extends State<MovieReviewFormPage> {
);
}
/// 构建类型选择器
Widget _buildTypeSelector(ColorScheme colors) {
return GestureDetector(
onTap: () => _showTypeSelector(),
child: Container(
padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 4),
decoration: BoxDecoration(
border: Border.all(color: colors.outline),
),
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
Text(
_reviewType == 1 ? '短评' : '长评',
style: TextStyle(
fontSize: 13,
color: colors.onSurface.withValues(alpha: 0.6),
),
),
const SizedBox(width: 4),
Icon(
Icons.arrow_drop_down,
size: 16,
color: colors.onSurface.withValues(alpha: 0.4),
),
],
),
),
);
}
// ═══════════════════════════════════════════════════════════════════
// 电影信息卡片
// ═══════════════════════════════════════════════════════════════════
/// 显示类型选择
void _showTypeSelector() {
showModalBottomSheet(
context: context,
backgroundColor: Colors.transparent,
shape: const RoundedRectangleBorder(borderRadius: BorderRadius.zero),
builder: (context) {
final colors = Theme.of(context).colorScheme;
return Container(
color: colors.surface,
child: SafeArea(
Widget _buildMovieCard(Movie movie, ColorScheme colors) {
return Container(
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(
color: colors.surfaceContainerHighest,
borderRadius: BorderRadius.circular(12),
),
child: Row(
children: [
Container(
width: 56, height: 72,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(6),
color: colors.outlineVariant,
),
clipBehavior: Clip.antiAlias,
child: movie.posterPath != null
? Image.file(File(movie.posterPath!), fit: BoxFit.cover,
errorBuilder: (_, __, ___) => Icon(Icons.movie_outlined, size: 24, color: colors.onSurface.withValues(alpha: 0.25)))
: Icon(Icons.movie_outlined, size: 24, color: colors.onSurface.withValues(alpha: 0.25)),
),
const SizedBox(width: 14),
Expanded(
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
ListTile(
title: const Text('短评'),
trailing: _reviewType == 1
? Icon(Icons.check, color: colors.onSurface)
: null,
onTap: () {
setState(() => _reviewType = 1);
Navigator.pop(context);
},
),
Divider(height: 0.5, color: colors.outline),
ListTile(
title: const Text('长评'),
trailing: _reviewType == 2
? Icon(Icons.check, color: colors.onSurface)
: null,
onTap: () {
setState(() => _reviewType = 2);
Navigator.pop(context);
},
),
Text(movie.title, style: TextStyle(fontSize: 15, fontWeight: FontWeight.w600, color: colors.onSurface), maxLines: 2, overflow: TextOverflow.ellipsis),
if (movie.rating != null) ...[
const SizedBox(height: 4),
Row(children: [
Icon(Icons.star, size: 14, color: const Color(0xFFFFB800)),
const SizedBox(width: 2),
Text('${movie.rating}', style: TextStyle(fontSize: 13, fontWeight: FontWeight.w600, color: colors.onSurface.withValues(alpha: 0.6))),
]),
],
],
),
),
);
},
],
),
);
}
// ═══════════════════════════════════════════════════════════════════
// 类型选择器（分段按钮）
// ═══════════════════════════════════════════════════════════════════
Widget _buildTypeSelector(ColorScheme colors) {
return SegmentedButton<int>(
segments: const [
ButtonSegment(value: 1, label: Text('短评'), icon: Icon(Icons.short_text)),
ButtonSegment(value: 2, label: Text('长评'), icon: Icon(Icons.menu_book)),
],
selected: {_reviewType},
onSelectionChanged: (v) => setState(() => _reviewType = v.first),
style: ButtonStyle(
backgroundColor: WidgetStateProperty.resolveWith((states) {
if (states.contains(WidgetState.selected)) return colors.primary;
return colors.surfaceContainerHighest;
}),
foregroundColor: WidgetStateProperty.resolveWith((states) {
if (states.contains(WidgetState.selected)) return colors.onPrimary;
return colors.onSurface.withValues(alpha: 0.6);
}),
iconColor: WidgetStateProperty.resolveWith((states) {
if (states.contains(WidgetState.selected)) return colors.onPrimary;
return colors.onSurface.withValues(alpha: 0.4);
}),
),
);
}
// ═══════════════════════════════════════════════════════════════════
// 元信息输入
// ═══════════════════════════════════════════════════════════════════
Widget _buildMetaField({
required IconData icon,
required String hint,
required TextEditingController controller,
required ColorScheme colors,
}) {
return Container(
padding: const EdgeInsets.symmetric(horizontal: 14),
decoration: BoxDecoration(
color: colors.surfaceContainerHighest,
borderRadius: BorderRadius.circular(10),
),
child: Row(
children: [
Icon(icon, size: 18, color: colors.onSurface.withValues(alpha: 0.35)),
const SizedBox(width: 10),
Expanded(
child: TextField(
controller: controller,
style: TextStyle(fontSize: 14, color: colors.onSurface),
decoration: InputDecoration(
hintText: hint,
hintStyle: TextStyle(fontSize: 14, color: colors.onSurface.withValues(alpha: 0.3)),
border: InputBorder.none,
enabledBorder: InputBorder.none,
focusedBorder: InputBorder.none,
contentPadding: const EdgeInsets.symmetric(vertical: 12),
),
),
),
],
),
);
}
// ═══════════════════════════════════════════════════════════════════
// 内容输入区 + 字数统计
// ═══════════════════════════════════════════════════════════════════
Widget _buildContentField(ColorScheme colors) {
return Container(
decoration: BoxDecoration(
color: colors.surfaceContainerHighest,
borderRadius: BorderRadius.circular(10),
),
child: Column(
children: [
TextFormField(
controller: _contentController,
maxLines: 10,
minLines: 6,
textAlignVertical: TextAlignVertical.top,
style: TextStyle(fontSize: 15, color: colors.onSurface, height: 1.7),
decoration: InputDecoration(
hintText: '写下你的影评...',
hintStyle: TextStyle(fontSize: 15, color: colors.onSurface.withValues(alpha: 0.25)),
border: InputBorder.none,
enabledBorder: InputBorder.none,
focusedBorder: InputBorder.none,
contentPadding: const EdgeInsets.all(14),
),
validator: (value) {
if (value == null || value.trim().isEmpty) return '请输入评论内容';
return null;
},
),
Padding(
padding: const EdgeInsets.only(right: 14, bottom: 10),
child: Align(
alignment: Alignment.centerRight,
child: Text(
'${_contentController.text.length} 字',
style: TextStyle(fontSize: 11, color: colors.onSurface.withValues(alpha: 0.3)),
),
),
),
],
),
);
}
// ═══════════════════════════════════════════════════════════════════
// 保存
// ═══════════════════════════════════════════════════════════════════
Future<void> _saveReview() async {
if (!_formKey.currentState!.validate()) {
return;
}
if (!_formKey.currentState!.validate()) return;
final now = DateTime.now();
@@ -258,9 +328,7 @@ class _MovieReviewFormPageState extends State<MovieReviewFormPage> {
}
if (!mounted) return;
ToastUtil.show(context, widget.review == null ? '添加成功' : '更新成功');
Navigator.pop(context);
}
}

86
lib/pages/statistics_page.dart
View File

@@ -1,3 +1,4 @@
import 'dart:math' as math;
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../providers/app_provider.dart';
@@ -13,6 +14,7 @@ class StatisticsPage extends StatefulWidget {
}
class _StatisticsPageState extends State<StatisticsPage> {
int _cloudTabIndex = 0; // 0=影视, 1=书籍, 2=笔记
bool get _showMovies => UserPrefs().showMovieTab;
bool get _showBooks => UserPrefs().showBookTab;
bool get _showNotes => UserPrefs().showNoteTab;
@@ -50,6 +52,8 @@ class _StatisticsPageState extends State<StatisticsPage> {
_buildNoteTagDistribution('笔记标签分布', notes),
const SizedBox(height: 28),
],
_buildTagCloud(movies, books, notes),
const SizedBox(height: 28),
_buildRatingDistribution('评分分布', movies, books),
const SizedBox(height: 28),
_buildMonthlyTrend(movies, books, notes),
@@ -398,6 +402,88 @@ class _StatisticsPageState extends State<StatisticsPage> {
return 5 - diff; // index 0..5 where 0=5 months ago, 5=current month
}
// ─── 标签词云 ──────────────────────────────────────────────────────────
Widget _buildTagCloud(List<Movie> movies, List<Book> books, List<Note> notes) {
final colors = Theme.of(context).colorScheme;
final tabs = <String>[];
if (_showMovies) tabs.add('影视');
if (_showBooks) tabs.add('书籍');
if (_showNotes) tabs.add('笔记');
if (tabs.isEmpty) return const SizedBox.shrink();
// 确保 cloudTabIndex 在有效范围内
if (_cloudTabIndex >= tabs.length) _cloudTabIndex = 0;
final tagCounts = <String, int>{};
switch (tabs[_cloudTabIndex]) {
case '影视':
for (final m in movies) { for (final g in m.genres) { tagCounts[g] = (tagCounts[g] ?? 0) + 1; } }
break;
case '书籍':
for (final b in books) { for (final g in b.genres) { tagCounts[g] = (tagCounts[g] ?? 0) + 1; } }
break;
case '笔记':
for (final n in notes) { for (final t in n.tags) { tagCounts[t] = (tagCounts[t] ?? 0) + 1; } }
break;
}
final sorted = tagCounts.entries.toList()..sort((a, b) => b.value.compareTo(a.value));
if (sorted.isEmpty) return const SizedBox.shrink();
final maxCount = sorted.first.value;
final minCount = sorted.last.value;
final range = math.max(maxCount - minCount, 1);
const cloudColors = [
Color(0xFFE53935), Color(0xFF4A90D9), Color(0xFF7E57C2),
Color(0xFF66BB6A), Color(0xFFFF8F00), Color(0xFF00ACC1),
Color(0xFF5C6BC0), Color(0xFF26A69A), Color(0xFF8D6E63),
];
return _buildCard(
title: '标签词云',
child: Column(children: [
// Tab 切换
Row(
children: tabs.map((t) {
final i = tabs.indexOf(t);
final selected = _cloudTabIndex == i;
return Expanded(
child: GestureDetector(
onTap: () => setState(() => _cloudTabIndex = i),
child: Container(
padding: const EdgeInsets.symmetric(vertical: 8),
margin: EdgeInsets.only(right: i < tabs.length - 1 ? 6 : 0),
decoration: BoxDecoration(
color: selected ? colors.primary : colors.surfaceContainerHighest,
borderRadius: BorderRadius.circular(8),
),
child: Text(t, textAlign: TextAlign.center, style: TextStyle(fontSize: 13, fontWeight: selected ? FontWeight.w600 : FontWeight.w500, color: selected ? colors.onPrimary : colors.onSurface.withValues(alpha: 0.5))),
),
),
);
}).toList(),
),
const SizedBox(height: 16),
// 词云
Wrap(
spacing: 6,
runSpacing: 6,
children: sorted.map((e) {
final ratio = (e.value - minCount) / range;
final fontSize = (12.0 + ratio * 18.0).roundToDouble();
final c = cloudColors[((ratio * (cloudColors.length - 1)).round()).clamp(0, cloudColors.length - 1)];
return Padding(
padding: const EdgeInsets.symmetric(horizontal: 2, vertical: 1),
child: Text(e.key, style: TextStyle(fontSize: fontSize, fontWeight: fontSize > 18 ? FontWeight.w700 : FontWeight.w500, color: c, height: 1.3)),
);
}).toList(),
),
]),
);
}
// ─── 通用卡片 ────────────────────────────────────────────────────────
Widget _buildCard({required String title, required Widget child}) {

4
lib/utils/user_prefs.dart
View File

@@ -46,6 +46,10 @@ class UserPrefs {
/// 主题模式: 0=跟随系统, 1=浅色, 2=深色
int get themeMode => prefs.getInt('themeMode') ?? 0;
Future<bool> setThemeMode(int value) => prefs.setInt('themeMode', value);
/// 上映日期：显示到日（true）/ 显示到月（false）
bool get showExactReleaseDate => prefs.getBool('showExactReleaseDate') ?? true;
Future<bool> setShowExactReleaseDate(bool value) => prefs.setBool('showExactReleaseDate', value);
/// 是否首次启动
bool get isFirstLaunch => prefs.getBool('isFirstLaunch') ?? true;

21
lib/widgets/custom_drawer.dart
View File

@@ -125,27 +125,6 @@ class _CustomDrawerState extends State<CustomDrawer> {
_buildProfileStatRow(Icons.menu_book_outlined, bookCount, '阅读'),
const SizedBox(height: 12),
_buildProfileStatRow(Icons.note_outlined, noteCount, '笔记'),
const SizedBox(height: 14),
Divider(height: 1, color: colors.outlineVariant),
InkWell(
onTap: () {
Navigator.pop(context);
Navigator.push(context, MaterialPageRoute(builder: (_) => const SettingsPage()));
},
borderRadius: BorderRadius.circular(8),
child: Padding(
padding: const EdgeInsets.only(top: 14),
child: Row(
children: [
Icon(Icons.settings_outlined, size: 16, color: colors.onSurface.withValues(alpha: 0.4)),
const SizedBox(width: 8),
Text('设置', style: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.5))),
const Spacer(),
Icon(Icons.chevron_right, size: 14, color: colors.onSurface.withValues(alpha: 0.2)),
],
),
),
),
],
),
);

206
tool/generate_icon.dart Normal file
View File

@@ -0,0 +1,206 @@
import 'dart:io';
import 'dart:typed_data';
import 'dart:math' as math;
void main() {
final outputDir = Directory('assets/icon');
if (!outputDir.existsSync()) outputDir.createSync(recursive: true);
final bytes1024 = generateIcon(1024);
File('${outputDir.path}/app_icon_m.png').writeAsBytesSync(bytes1024);
print('Generated app_icon_m.png (1024×1024)');
final androidMipmapDir = 'android/app/src/main/res';
final densities = {
'mipmap-mdpi': 48, 'mipmap-hdpi': 72, 'mipmap-xhdpi': 96,
'mipmap-xxhdpi': 144, 'mipmap-xxxhdpi': 192,
};
for (final entry in densities.entries) {
final dir = Directory('$androidMipmapDir/${entry.key}');
if (!dir.existsSync()) dir.createSync(recursive: true);
File('${dir.path}/ic_launcher_m.png').writeAsBytesSync(generateIcon(entry.value));
print('Generated ${entry.key}/ic_launcher_m.png');
}
print('Done!');
}
Uint8List generateIcon(int size) {
final bm = _Bitmap(size, size);
// 透明背景
for (int y = 0; y < size; y++) {
for (int x = 0; x < size; x++) {
bm.setPixel(x, y, 0, 0, 0, 0);
}
}
// 圆角黑底
final cr = (size * 0.22).round();
_fillRoundedRect(bm, 0, 0, size, size, cr, 0, 0, 0, 255);
// 绘制标准 M
_drawStandardM(bm);
return _encodePng(bm);
}
/// 用扫描线 + 区间运算绘制标准 M
void _drawStandardM(_Bitmap bm) {
const int r = 255, g = 255, b = 255, a = 255;
final size = bm.width;
final letterW = size * 0.36;
final letterH = size * 0.38;
final stroke = letterW * 0.24;
final cx = size / 2.0;
final cy = size / 2.0;
final hw = letterW / 2.0;
final hh = letterH / 2.0;
final hs = stroke / 2.0;
final top = cy - hh;
final bot = cy + hh;
final leftOuter = cx - hw - hs;
final leftInner = cx - hw + hs;
final rightInner = cx + hw - hs;
final rightOuter = cx + hw + hs;
final botC = bot; // 对角线与竖笔底边齐平
// V 形切口的底端 y
final vBotY = cy - hh * 0.15;
// V 形在 vBotY 处的半宽
final vBotHW = hw * 0.30;
final minY = top.floor().clamp(0, size - 1);
final maxY = botC.ceil().clamp(0, size - 1);
for (int y = minY; y <= maxY; y++) {
// 该行的像素掩码
final row = List.filled(size, false);
// ── 填充各部件 ──
// 左竖笔
if (y >= top && y <= bot) {
_setRange(row, leftOuter, leftInner);
}
// 右竖笔
if (y >= top && y <= bot) {
_setRange(row, rightInner, rightOuter);
}
// 左对角线（左边缘从 bar 外缘开始，保持连续无断裂）
if (y >= top && y <= botC) {
final t = (y - top) / (botC - top);
final l = leftOuter + (cx - hs - leftOuter) * t;
final r = leftInner + (cx + hs - leftInner) * t;
_setRange(row, l, r);
}
// 右对角线（右边缘从 bar 外缘开始，保持连续无断裂）
if (y >= top && y <= botC) {
final t = (y - top) / (botC - top);
final l = rightInner + (cx - hs - rightInner) * t;
final r = rightOuter + (cx + hs - rightOuter) * t;
_setRange(row, l, r);
}
// V 形切口（清除中心区域）
if (y >= top && y <= vBotY) {
final vt = (y - top) / (vBotY - top);
final vw = vBotHW * vt; // V 宽度随 y 增大而增大
_clearRange(row, cx - vw, cx + vw);
}
// ── 输出 ──
_fillRowFromMask(bm, row, y, r, g, b, a);
}
}
void _setRange(List<bool> row, double from, double to) {
final a = from.round().clamp(0, row.length - 1);
final b = to.round().clamp(0, row.length - 1);
final start = math.min(a, b);
final end = math.max(a, b);
for (int i = start; i <= end; i++) {
row[i] = true;
}
}
void _clearRange(List<bool> row, double from, double to) {
final a = from.round().clamp(0, row.length - 1);
final b = to.round().clamp(0, row.length - 1);
final start = math.min(a, b);
final end = math.max(a, b);
for (int i = start; i <= end; i++) {
row[i] = false;
}
}
void _fillRowFromMask(_Bitmap bm, List<bool> row, int y, int r, int g, int b, int a) {
for (int x = 0; x < row.length; x++) {
if (row[x]) bm.setPixel(x, y, r, g, b, a);
}
}
// ═══════════════════════════════════════════════════════════════════
void _fillRoundedRect(_Bitmap bm, int x, int y, int w, int h, int rr, int r, int g, int b, int a) {
final radius = rr.clamp(0, math.min(w, h) ~/ 2);
for (int dy = 0; dy < h; dy++) {
for (int dx = 0; dx < w; dx++) {
bool inside = true;
if (dx < radius && dy < radius) {
inside = math.sqrt((radius - dx) * (radius - dx) + (radius - dy) * (radius - dy)) <= radius;
} else if (dx >= w - radius && dy < radius) {
inside = math.sqrt((dx - (w - radius - 1)) * (dx - (w - radius - 1)) + (radius - dy) * (radius - dy)) <= radius;
} else if (dx < radius && dy >= h - radius) {
inside = math.sqrt((radius - dx) * (radius - dx) + (dy - (h - radius - 1)) * (dy - (h - radius - 1))) <= radius;
} else if (dx >= w - radius && dy >= h - radius) {
inside = math.sqrt((dx - (w - radius - 1)) * (dx - (w - radius - 1)) + (dy - (h - radius - 1)) * (dy - (h - radius - 1))) <= radius;
}
if (inside) bm.setPixel(x + dx, y + dy, r, g, b, a);
}
}
}
// ── Bitmap ────────────────────────────────────────────────────────
class _Bitmap {
final int width, height;
final Uint8List data;
_Bitmap(this.width, this.height) : data = Uint8List(width * height * 4);
void setPixel(int x, int y, int r, int g, int b, int a) {
if (x < 0 || x >= width || y < 0 || y >= height) return;
final o = (y * width + x) * 4;
data[o] = r; data[o + 1] = g; data[o + 2] = b; data[o + 3] = a;
}
}
// ── PNG Encoder ───────────────────────────────────────────────────
Uint8List _encodePng(_Bitmap bm) {
final w = bm.width, h = bm.height;
final raw = <int>[];
for (int y = 0; y < h; y++) {
raw.add(0);
raw.addAll(bm.data.sublist(y * w * 4, (y + 1) * w * 4));
}
final deflated = ZLibEncoder().convert(raw);
final buf = BytesBuilder();
buf.add(_chunk('IHDR', [..._be32(w), ..._be32(h), 8, 6, 0, 0, 0]));
buf.add(_chunk('IDAT', deflated));
buf.add(_chunk('IEND', []));
return Uint8List.fromList([137, 80, 78, 71, 13, 10, 26, 10, ...buf.toBytes()]);
}
List<int> _chunk(String type, List<int> data) {
final body = [...type.codeUnits, ...data];
return [..._be32(data.length), ...body, ..._be32(_crc32(body))];
}
List<int> _be32(int v) => [(v >> 24) & 0xFF, (v >> 16) & 0xFF, (v >> 8) & 0xFF, v & 0xFF];
int _crc32(List<int> data) {
int crc = 0xFFFFFFFF;
for (final b in data) { crc ^= b; for (int i = 0; i < 8; i++) crc = (crc & 1) != 0 ? (crc >> 1) ^ 0xEDB88320 : (crc >> 1); }
return crc ^ 0xFFFFFFFF;
}