757 lines
25 KiB
Dart
757 lines
25 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:path/path.dart' as p;
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import '../app/app_controller.dart';
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import '../app/subtitle_editor_controller.dart';
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import '../core/models.dart';
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import '../core/srt.dart';
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import '../core/text_codec.dart';
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import '../services/preview_player.dart';
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import 'app_actions.dart';
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import 'theme.dart';
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import 'timeline.dart';
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/// 자막을 불러와 편집 화면을 연다.
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Future<void> openSubtitleEditor(
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BuildContext context, AppController c, VideoItem v, SubtitleEntry s) async {
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final nav = Navigator.of(context);
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final messenger = ScaffoldMessenger.of(context);
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showDialog<void>(
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context: context,
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barrierDismissible: false,
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builder: (_) => const Center(child: CircularProgressIndicator()),
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);
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List<Cue> cues;
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try {
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cues = await c.loadCues(v, s);
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} catch (e) {
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nav.pop();
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messenger.showSnackBar(SnackBar(content: Text('자막을 불러올 수 없습니다: $e')));
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return;
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}
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nav.pop();
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final charset = s.kind == SubtitleKind.external && s.codec == 'srt'
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? (s.charset ?? 'UTF-8')
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: 'UTF-8';
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await nav.push(MaterialPageRoute<void>(
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builder: (_) => SubtitleEditorPage(
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app: c,
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video: v,
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entry: s,
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editor: SubtitleEditorController(cues, saveCharset: charset),
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player: c.services.createPlayer?.call(),
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),
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));
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}
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class SubtitleEditorPage extends StatefulWidget {
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final AppController app;
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final VideoItem video;
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final SubtitleEntry entry;
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final SubtitleEditorController editor;
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/// 영상 재생기 (없으면 자막 표만 표시)
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final PreviewPlayer? player;
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const SubtitleEditorPage({
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super.key,
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required this.app,
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required this.video,
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required this.entry,
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required this.editor,
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this.player,
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});
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@override
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State<SubtitleEditorPage> createState() => _SubtitleEditorPageState();
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}
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class _SubtitleEditorPageState extends State<SubtitleEditorPage> {
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late SubtitleEntry _entry = widget.entry;
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final _shift = TextEditingController(text: '0');
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bool _saving = false;
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// 재생 상태
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final _position = ValueNotifier(Duration.zero);
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final _active = ValueNotifier<Cue?>(null);
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final _subs = <StreamSubscription<Object?>>[];
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Duration _duration = Duration.zero;
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bool _playing = false;
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double _rate = 1.0;
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String? _playerError;
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SubtitleEditorController get e => widget.editor;
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PreviewPlayer? get _pl => widget.player;
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@override
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void initState() {
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super.initState();
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final pl = _pl;
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if (pl == null) return;
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_subs
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..add(pl.positionStream.listen((d) {
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_position.value = d;
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_updateActive();
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}))
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..add(pl.durationStream.listen((d) => setState(() => _duration = d)))
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..add(pl.playingStream.listen((b) => setState(() => _playing = b)))
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..add(pl.errorStream.listen((m) => setState(() => _playerError = m)));
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e.addListener(_updateActive);
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pl.open(widget.video.path).catchError((Object err) {
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if (mounted) setState(() => _playerError = '$err');
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});
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}
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void _updateActive() {
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final list = e.activeAt(_position.value);
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_active.value = list.isEmpty ? null : list.first;
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}
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@override
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void dispose() {
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for (final s in _subs) {
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s.cancel();
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}
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e.removeListener(_updateActive);
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_pl?.dispose();
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_position.dispose();
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_active.dispose();
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_shift.dispose();
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widget.editor.dispose();
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super.dispose();
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}
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// ───────── 재생 조작 ─────────
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void _seek(Duration d) {
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if (d.isNegative) d = Duration.zero;
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if (_duration > Duration.zero && d > _duration) d = _duration;
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_position.value = d; // 화면 즉시 반영
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_updateActive();
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_pl?.seek(d);
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}
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void _seekBy(int ms) => _seek(_position.value + Duration(milliseconds: ms));
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/// 줄 선택 + 그 줄 시작으로 이동
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void _selectCue(Cue c) {
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e.select(c);
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_seek(c.start);
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}
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void _playSelected() {
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final c = e.selected;
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if (c == null || _pl == null) return;
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_seek(c.start);
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if (!_playing) _pl!.playOrPause();
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}
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void _setStartHere() {
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final c = e.selected;
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if (c != null) e.setStart(c, _position.value);
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}
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void _setEndHere() {
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final c = e.selected;
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if (c != null) e.setEnd(c, _position.value);
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}
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void _alignHere() {
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final c = e.selected;
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if (c != null) e.alignFrom(c, _position.value);
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}
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void _insertHere() => e.insertAt(_position.value);
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Map<ShortcutActivator, VoidCallback> get _shortcuts => {
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const SingleActivator(LogicalKeyboardKey.space, control: true): () => _pl?.playOrPause(),
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const SingleActivator(LogicalKeyboardKey.arrowLeft, alt: true): () => _seekBy(-1000),
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const SingleActivator(LogicalKeyboardKey.arrowRight, alt: true): () => _seekBy(1000),
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const SingleActivator(LogicalKeyboardKey.arrowLeft, alt: true, shift: true): () => _seekBy(-100),
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const SingleActivator(LogicalKeyboardKey.arrowRight, alt: true, shift: true): () => _seekBy(100),
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const SingleActivator(LogicalKeyboardKey.f7): _insertHere,
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const SingleActivator(LogicalKeyboardKey.f8): _playSelected,
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const SingleActivator(LogicalKeyboardKey.f9): _setStartHere,
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const SingleActivator(LogicalKeyboardKey.f10): _setEndHere,
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};
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/// 표현할 수 없는 글자가 있으면 확인
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Future<bool> _confirmLoss() async {
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final lost = encodeText(formatSrt(e.cues), e.saveCharset).lostChars;
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if (lost == 0) return true;
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final ok = await showDialog<bool>(
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context: context,
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builder: (ctx) => AlertDialog(
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title: const Text('문자셋 경고'),
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content: Text('${saveCharsets[e.saveCharset]} 로 표현할 수 없는 글자 $lost개가 '
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'"?" 로 바뀝니다.\n계속 저장할까요? (UTF-8 을 권장합니다)'),
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actions: [
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TextButton(onPressed: () => Navigator.pop(ctx, false), child: const Text('취소')),
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FilledButton(onPressed: () => Navigator.pop(ctx, true), child: const Text('저장')),
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],
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),
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);
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return ok ?? false;
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}
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Future<void> _save() async {
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if (!await _confirmLoss() || !mounted) return;
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setState(() => _saving = true);
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final messenger = ScaffoldMessenger.of(context);
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try {
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final (path, _) = await widget.app
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.saveEdited(widget.video, _entry, e.cues, e.saveCharset);
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_entry = widget.video.subtitles
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.firstWhere((s) => s.path != null && p.equals(s.path!, path));
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e.markSaved();
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messenger.showSnackBar(
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SnackBar(content: Text('저장했습니다: ${p.basename(path)} (MKV 에 반영됨)')));
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} catch (err) {
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messenger.showSnackBar(SnackBar(content: Text('저장 실패: $err')));
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} finally {
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if (mounted) setState(() => _saving = false);
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}
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}
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Future<void> _saveAs() async {
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if (!await _confirmLoss() || !mounted) return;
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final messenger = ScaffoldMessenger.of(context);
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final name = '${widget.video.baseName}_${_entry.language.code}.srt';
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try {
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final (path, _) = await widget.app
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.saveCuesAs(widget.video, e.cues, e.saveCharset, name);
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if (path != null) {
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messenger.showSnackBar(SnackBar(content: Text('저장했습니다: $path')));
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}
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} catch (err) {
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messenger.showSnackBar(SnackBar(content: Text('저장 실패: $err')));
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}
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}
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Future<bool> _confirmLeave() async {
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if (!e.dirty) return true;
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final ok = await showDialog<bool>(
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context: context,
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builder: (ctx) => AlertDialog(
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title: const Text('저장하지 않은 변경'),
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content: const Text('변경 내용을 저장하지 않고 나갈까요?'),
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actions: [
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TextButton(onPressed: () => Navigator.pop(ctx, false), child: const Text('계속 편집')),
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FilledButton(onPressed: () => Navigator.pop(ctx, true), child: const Text('나가기')),
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],
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),
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);
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return ok ?? false;
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}
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@override
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Widget build(BuildContext context) {
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return ListenableBuilder(
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listenable: e,
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builder: (context, _) => PopScope(
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canPop: !e.dirty,
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onPopInvokedWithResult: (didPop, _) async {
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if (didPop) return;
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final nav = Navigator.of(context);
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if (await _confirmLeave()) {
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e.markSaved();
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nav.pop();
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}
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},
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child: CallbackShortcuts(
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bindings: _shortcuts,
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child: Focus(
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autofocus: true,
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child: Scaffold(
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body: Column(
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children: [
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_toolbar(context),
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_statusBar(),
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Expanded(
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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if (_pl != null) ...[
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Expanded(flex: 9, child: _videoPane()),
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const VerticalDivider(width: 1),
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],
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Expanded(flex: 11, child: _cueTable()),
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],
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),
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),
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if (_pl != null) ...[
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const Divider(height: 1),
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_transportBar(),
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SizedBox(
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height: 104,
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child: SubtitleTimeline(
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editor: e,
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position: _position,
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duration: _duration,
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followPlayhead: _playing,
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onSeek: _seek,
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onSelect: _selectCue,
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),
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),
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],
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],
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),
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floatingActionButton: e.cues.isEmpty
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? FloatingActionButton.extended(
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onPressed: () => e.insertAfter(-1),
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icon: const Icon(Icons.add),
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label: const Text('첫 줄 추가'),
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)
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: null,
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),
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),
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),
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),
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);
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}
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// ───────── 영상 · 자막 겹쳐 보기 ─────────
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Widget _videoPane() => Container(
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color: Colors.black,
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child: Stack(
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fit: StackFit.expand,
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children: [
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_pl!.buildView(),
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// 편집 중인 자막을 영상 위에 표시
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Positioned(
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left: 16,
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right: 16,
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bottom: 20,
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child: IgnorePointer(
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child: ValueListenableBuilder<Duration>(
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valueListenable: _position,
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builder: (_, pos, _) => ListenableBuilder(
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listenable: e,
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builder: (_, _) {
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final text = e.activeAt(pos).map((c) => c.text).join('\n');
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if (text.isEmpty) return const SizedBox();
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return Center(
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 4),
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color: Colors.black.withValues(alpha: 0.55),
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child: Text(
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text,
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textAlign: TextAlign.center,
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style: const TextStyle(
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fontSize: 20, color: Colors.white, height: 1.3),
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),
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),
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);
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},
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),
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),
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),
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),
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if (_playerError != null)
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Positioned(
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left: 8,
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right: 8,
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top: 8,
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child: Container(
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padding: const EdgeInsets.all(8),
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color: JjColors.danger.withValues(alpha: 0.85),
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child: Text('영상 재생 오류: $_playerError',
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style: const TextStyle(fontSize: 12, color: Colors.white)),
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),
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),
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],
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),
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);
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Widget _cueTable() => Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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const _HeaderRow(),
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const Divider(height: 1),
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Expanded(
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child: ValueListenableBuilder<Cue?>(
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valueListenable: _active,
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builder: (_, active, _) => ListView.builder(
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itemCount: e.cues.length,
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itemBuilder: (_, i) {
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final c = e.cues[i];
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return _CueRow(
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key: ObjectKey(c),
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index: i,
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cue: c,
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editor: e,
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orderError: e.invalidOrder.contains(i),
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selected: e.selected == c,
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active: active == c,
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onSelect: () => _selectCue(c),
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);
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},
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),
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),
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),
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],
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);
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// ───────── 재생 조작 막대 ─────────
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Widget _transportBar() {
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final hasSel = e.selected != null;
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Widget btn(String label, String key, VoidCallback? onTap) => Padding(
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padding: const EdgeInsets.only(left: 6),
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child: Tooltip(
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message: key,
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child: OutlinedButton(
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style: OutlinedButton.styleFrom(
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padding: const EdgeInsets.symmetric(horizontal: 10),
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visualDensity: VisualDensity.compact),
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onPressed: onTap,
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child: Text(label, style: const TextStyle(fontSize: 12)),
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),
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),
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);
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return Container(
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height: 48,
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color: JjColors.panel,
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padding: const EdgeInsets.symmetric(horizontal: 8),
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child: Row(
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children: [
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IconButton(
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tooltip: '5초 뒤로',
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icon: const Icon(Icons.replay_5),
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onPressed: () => _seekBy(-5000),
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),
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IconButton(
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tooltip: '재생/정지 (Ctrl+Space)',
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iconSize: 30,
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icon: Icon(_playing ? Icons.pause_circle : Icons.play_circle,
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color: JjColors.accent),
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onPressed: () => _pl?.playOrPause(),
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),
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IconButton(
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tooltip: '5초 앞으로',
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icon: const Icon(Icons.forward_5),
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onPressed: () => _seekBy(5000),
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),
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const SizedBox(width: 6),
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ValueListenableBuilder<Duration>(
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valueListenable: _position,
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builder: (_, pos, _) => Text(
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'${formatSrtTime(pos)} / ${formatSrtTime(_duration)}',
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style: const TextStyle(fontFamily: 'Consolas', fontSize: 13),
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),
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),
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const SizedBox(width: 10),
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DropdownButton<double>(
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value: _rate,
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isDense: true,
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underline: const SizedBox(),
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style: const TextStyle(fontSize: 12, color: JjColors.text),
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items: [
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for (final r in const [0.5, 0.75, 1.0, 1.25, 1.5, 2.0])
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DropdownMenuItem(value: r, child: Text('${r}x')),
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],
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onChanged: (r) {
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setState(() => _rate = r!);
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_pl?.setRate(r!);
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},
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),
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// 폭이 좁으면 (휴대폰) 밀어서 본다. 넓으면 지금처럼 오른쪽에 붙는다 (reverse)
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Expanded(
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child: SingleChildScrollView(
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scrollDirection: Axis.horizontal,
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reverse: true,
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child: Row(mainAxisSize: MainAxisSize.min, children: [
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btn('+ 여기에 새 줄', 'F7', _insertHere),
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btn('선택 줄 재생', 'F8', hasSel ? _playSelected : null),
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btn('시작 = 현재', 'F9', hasSel ? _setStartHere : null),
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btn('끝 = 현재', 'F10', hasSel ? _setEndHere : null),
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btn('선택 줄부터 여기로 맞추기', '선택한 줄과 그 뒤 모든 줄을 함께 이동', hasSel ? _alignHere : null),
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]),
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),
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),
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],
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),
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);
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}
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Widget _toolbar(BuildContext context) => Container(
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height: appBarHeight,
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color: JjColors.panel,
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padding: const EdgeInsets.only(left: 8, right: appBarRightPadding),
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child: Row(
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children: [
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const AppNavButtons(),
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const SizedBox(width: 4),
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Expanded(
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child: Text(
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'자막 편집 · ${_entry.displayName}',
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overflow: TextOverflow.ellipsis,
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style: const TextStyle(fontSize: 15, fontWeight: FontWeight.w600),
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),
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),
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// 폭이 좁으면 (휴대폰) 도구 줄을 밀어서 본다 - 설정 · 종료 버튼은 늘 오른쪽 끝에
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Flexible(
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flex: 4,
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child: SingleChildScrollView(
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scrollDirection: Axis.horizontal,
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child: Row(mainAxisSize: MainAxisSize.min, children: [
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// 전체 싱크 이동
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const Text('싱크', style: TextStyle(fontSize: 12, color: JjColors.textDim)),
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const SizedBox(width: 6),
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SizedBox(
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width: 80,
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child: TextField(
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controller: _shift,
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textAlign: TextAlign.right,
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style: const TextStyle(fontSize: 13),
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decoration: const InputDecoration(
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isDense: true, suffixText: 'ms', border: OutlineInputBorder()),
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),
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),
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const SizedBox(width: 4),
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OutlinedButton(
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onPressed: () {
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final ms = int.tryParse(_shift.text.trim());
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if (ms == null) return;
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e.shiftAll(ms);
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},
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child: const Text('전체 이동'),
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),
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const SizedBox(width: 8),
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OutlinedButton(onPressed: e.sortByTime, child: const Text('시간순 정렬')),
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const SizedBox(width: 12),
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DropdownButton<String>(
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value: e.saveCharset,
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isDense: true,
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underline: const SizedBox(),
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style: const TextStyle(fontSize: 13, color: JjColors.text),
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items: [
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for (final c in saveCharsets.entries)
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DropdownMenuItem(value: c.key, child: Text(c.value)),
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],
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onChanged: (v) => e.setCharset(v!),
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),
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const SizedBox(width: 8),
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OutlinedButton(
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onPressed: e.canSave ? _saveAs : null,
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child: const Text('다른 이름으로 저장'),
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),
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const SizedBox(width: 8),
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FilledButton.icon(
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onPressed: e.canSave && !_saving ? _save : null,
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icon: const Icon(Icons.save, size: 18),
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label: Text(e.dirty ? '저장 (MKV 반영) *' : '저장 (MKV 반영)'),
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),
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]),
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),
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),
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const AppActions(),
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],
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),
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);
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Widget _statusBar() {
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final order = e.invalidOrder;
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final msgs = <String>[
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'${e.cues.length}줄',
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if (e.badInput.isNotEmpty) '시간 형식 오류 ${e.badInput.length}곳',
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if (order.isNotEmpty)
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'끝 시간이 시작보다 빠른 줄: ${order.take(10).map((i) => i + 1).join(', ')}'
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'${order.length > 10 ? ' …' : ''}',
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];
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final hasError = e.badInput.isNotEmpty || order.isNotEmpty;
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return Container(
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width: double.infinity,
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color: hasError ? JjColors.danger.withValues(alpha: 0.12) : JjColors.bg,
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 6),
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child: Text(msgs.join(' · '),
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style: TextStyle(
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fontSize: 12, color: hasError ? JjColors.danger : JjColors.textDim)),
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);
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}
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}
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class _HeaderRow extends StatelessWidget {
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const _HeaderRow();
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@override
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Widget build(BuildContext context) => Container(
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color: JjColors.panel,
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
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child: const Row(children: [
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SizedBox(width: 48, child: Text('#', style: _hdr)),
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SizedBox(width: 130, child: Text('시작', style: _hdr)),
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SizedBox(width: 130, child: Text('끝', style: _hdr)),
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Expanded(child: Text('내용', style: _hdr)),
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SizedBox(width: 96),
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]),
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);
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}
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const _hdr = TextStyle(fontSize: 12, color: JjColors.textDim);
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class _CueRow extends StatefulWidget {
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final int index;
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final Cue cue;
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final SubtitleEditorController editor;
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final bool orderError;
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final bool selected;
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/// 현재 재생 위치에서 표시 중인 줄
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final bool active;
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final VoidCallback? onSelect;
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const _CueRow({
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super.key,
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required this.index,
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required this.cue,
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required this.editor,
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required this.orderError,
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this.selected = false,
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this.active = false,
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this.onSelect,
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});
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@override
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State<_CueRow> createState() => _CueRowState();
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}
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class _CueRowState extends State<_CueRow> {
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late final _start = TextEditingController(text: formatSrtTime(widget.cue.start));
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late final _end = TextEditingController(text: formatSrtTime(widget.cue.end));
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late final _text = TextEditingController(text: widget.cue.text);
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final _startFocus = FocusNode();
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final _endFocus = FocusNode();
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bool _startBad = false, _endBad = false;
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@override
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void didUpdateWidget(covariant _CueRow old) {
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super.didUpdateWidget(old);
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// 전체 이동 등 바깥에서 바뀐 시간을 입력칸에 반영 (입력 중이 아닐 때만)
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if (!_startFocus.hasFocus && !_startBad) _sync(_start, formatSrtTime(widget.cue.start));
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if (!_endFocus.hasFocus && !_endBad) _sync(_end, formatSrtTime(widget.cue.end));
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}
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void _sync(TextEditingController c, String v) {
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if (c.text != v) c.text = v;
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}
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@override
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void dispose() {
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_start.dispose();
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_end.dispose();
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_text.dispose();
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_startFocus.dispose();
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_endFocus.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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final e = widget.editor;
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return Container(
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 4),
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decoration: BoxDecoration(
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color: widget.orderError
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? JjColors.danger.withValues(alpha: 0.08)
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: widget.selected
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? JjColors.accent.withValues(alpha: 0.12)
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: null,
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border: Border(
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bottom: const BorderSide(color: JjColors.border),
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left: BorderSide(
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color: widget.active ? JjColors.accent : Colors.transparent, width: 3),
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),
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),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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SizedBox(
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width: 48,
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child: InkWell(
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onTap: widget.onSelect,
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child: Padding(
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padding: const EdgeInsets.only(top: 10, bottom: 10),
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child: Text('${widget.index + 1}',
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style: TextStyle(
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fontSize: 12,
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color: widget.selected ? JjColors.accent : JjColors.textDim)),
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),
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),
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),
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SizedBox(width: 130, child: _timeField(_start, _startFocus, _startBad, true)),
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SizedBox(width: 130, child: _timeField(_end, _endFocus, _endBad, false)),
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Expanded(
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child: TextField(
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controller: _text,
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minLines: 1,
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maxLines: 4,
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style: const TextStyle(fontSize: 14),
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decoration: const InputDecoration(isDense: true, border: InputBorder.none),
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onTap: () => e.select(widget.cue),
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onChanged: (t) => e.setText(widget.cue, t),
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),
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),
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SizedBox(
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width: 96,
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child: Row(children: [
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IconButton(
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tooltip: '아래에 줄 추가',
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iconSize: 18,
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icon: const Icon(Icons.add, color: JjColors.textDim),
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onPressed: () => e.insertAfter(widget.index),
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),
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IconButton(
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tooltip: '줄 삭제',
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iconSize: 18,
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icon: const Icon(Icons.delete_outline, color: JjColors.textDim),
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onPressed: () => e.removeAt(widget.index),
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),
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]),
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),
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],
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),
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);
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}
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Widget _timeField(
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TextEditingController c, FocusNode f, bool bad, bool isStart) {
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return Padding(
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padding: const EdgeInsets.only(right: 10),
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child: TextField(
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controller: c,
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focusNode: f,
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style: const TextStyle(fontSize: 13, fontFamily: 'Consolas'),
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decoration: InputDecoration(
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isDense: true,
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border: InputBorder.none,
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errorText: bad ? '형식 오류' : null,
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errorStyle: const TextStyle(fontSize: 10),
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),
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onTap: () => widget.editor.select(widget.cue),
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onChanged: (t) {
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final ok = widget.editor.setTime(widget.cue, t, isStart: isStart);
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setState(() {
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if (isStart) {
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_startBad = !ok;
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} else {
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_endBad = !ok;
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}
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});
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},
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onEditingComplete: () {
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// 입력을 마치면 표준 형식으로 정리
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final d = parseSrtTime(c.text);
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if (d != null) c.text = formatSrtTime(d);
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f.unfocus();
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},
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),
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);
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}
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}
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