50 lines
1.1 KiB
Rust
50 lines
1.1 KiB
Rust
use crate::payload::{Decode, Encode, SeStringChunkKind};
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use std::io::{Read, Seek};
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use crate::Payload;
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#[derive(Debug, Clone, PartialEq)]
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pub struct EmphasisPayload(pub bool);
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impl EmphasisPayload {
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pub fn enable() -> Self {
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Self(true)
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}
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pub fn disable() -> Self {
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Self(false)
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}
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pub fn enabled(&self) -> bool {
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self.0
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}
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}
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impl From<bool> for EmphasisPayload {
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fn from(enabled: bool) -> Self {
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Self(enabled)
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}
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}
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impl Decode for EmphasisPayload {
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fn decode<R: Read + Seek>(reader: R, _chunk_len: usize) -> Result<Self, crate::Error> {
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let enabled = Self::read_integer(reader)?;
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Ok(Self(enabled == 1))
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}
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}
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impl Encode for EmphasisPayload {
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fn encode(&self) -> Vec<u8> {
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use std::iter::once;
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let enabled = Self::make_integer(if self.0 { 1 } else { 0 });
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let chunk_len = enabled.len() + 1;
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once(Payload::START_BYTE)
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.chain(once(SeStringChunkKind::Emphasis.as_u8()))
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.chain(once(chunk_len as u8))
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.chain(enabled.into_iter())
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.chain(once(Payload::END_BYTE))
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.collect()
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}
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}
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