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use crate::{
subtitles::{SUBTITLE_TRACKS, StreamIndex},
translation::TRANSLATIONS,
util::Tracker,
};
#[derive(Default)]
pub struct SubtitleState {
pub stream_ix: Option<StreamIndex>,
pub last_started_cue_ix: Tracker<Option<usize>>,
pub last_ended_cue_ix: Tracker<Option<usize>>,
}
#[derive(Clone, Copy, Debug)]
pub struct CueAddress(pub StreamIndex, pub usize);
impl SubtitleState {
pub fn active_cue(&self) -> Option<CueAddress> {
if let Some(stream_ix) = self.stream_ix {
match (*self.last_started_cue_ix, *self.last_ended_cue_ix) {
(None, _) => None,
(Some(started_ix), None) => Some(CueAddress(stream_ix, started_ix)),
(Some(started_ix), Some(ended_ix)) => {
if started_ix > ended_ix {
Some(CueAddress(stream_ix, started_ix))
} else {
None
}
}
}
} else {
None
}
}
pub fn is_dirty(&self) -> bool {
self.last_started_cue_ix.is_dirty() || self.last_ended_cue_ix.is_dirty()
}
pub fn reset(&mut self) {
self.last_started_cue_ix.reset();
self.last_ended_cue_ix.reset();
}
pub fn set_stream_ix(&mut self, stream_ix: Option<StreamIndex>) {
self.stream_ix = stream_ix;
self.last_started_cue_ix.set(None);
self.last_ended_cue_ix.set(None);
}
}
impl CueAddress {
pub fn resolve_text(&self) -> String {
SUBTITLE_TRACKS.read().get(&self.0).unwrap().texts[self.1].clone()
}
pub fn resolve_translation(&self) -> Option<String> {
TRANSLATIONS
.read()
.get(&self.0)
.and_then(|tln| tln.get(self.1).cloned())
}
}
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