Struct Preview 

#[non_exhaustive]
pub struct Preview {
    pub width: u32,
    pub height: u32,
    pub row_bytes: u32,
    pub bitmap: Vec<u8>,
}

Embedded preview thumbnail, decoded and (optionally) upscaled to match the main image’s pixel dimensions.

Marked #[non_exhaustive] for the same reason as Page: see that type’s docs.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

width: u32

Preview width in pixels.

height: u32

Preview height in pixels.

row_bytes: u32

Bytes per row.

bitmap: Vec<u8>

1-bit packed, MSB-first, bit=1 means BLACK.

Trait Implementations

impl Clone for Preview

fn clone(&self) -> Preview

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Preview

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.