Struct ViewerPrefsRecord 

pub struct ViewerPrefsRecord {
    pub hide_toolbar: Option<bool>,
    pub hide_menubar: Option<bool>,
    pub hide_window_ui: Option<bool>,
    pub fit_window: Option<bool>,
    pub center_window: Option<bool>,
    pub display_doc_title: Option<bool>,
    pub non_full_screen_page_mode: Option<String>,
    pub direction: Option<String>,
    pub page_layout: Option<String>,
    pub page_mode: Option<String>,
}

One /VIEWERPREFERENCES payload. All keys are optional; later records override earlier ones key-by-key. The “page layout” and “page mode” entries technically live on /Catalog directly (not under /ViewerPreferences) but Adobe pdfmark groups them with the rest of the viewer-control bag, so stet does too.

Fields

hide_toolbar: Option<bool>

hide_menubar: Option<bool>

hide_window_ui: Option<bool>

fit_window: Option<bool>

center_window: Option<bool>

display_doc_title: Option<bool>

non_full_screen_page_mode: Option<String>

/NonFullScreenPageMode — one of UseNone, UseOutlines, UseThumbs, UseOC. Stored as the raw bytes for forward- compatibility with values stet doesn’t recognise.

direction: Option<String>

/Direction — L2R or R2L.

page_layout: Option<String>

Catalog-level /PageLayout: SinglePage, OneColumn, TwoColumnLeft, TwoColumnRight, TwoPageLeft, TwoPageRight.

page_mode: Option<String>

Catalog-level /PageMode: UseNone, UseOutlines, UseThumbs, FullScreen, UseOC, UseAttachments. Wins over the UseOutlines default the writer applies when /OUT records exist.

Implementations

impl ViewerPrefsRecord

pub fn merge_over(&self, other: &ViewerPrefsRecord) -> ViewerPrefsRecord

Merge other into self — self’s Some values win when both records set the same key. Used to layer multiple /VIEWERPREFERENCES blocks into one effective record.

pub fn nested_is_empty(&self) -> bool

True when no field has a value — the writer skips the catalog entry entirely in this case.

Trait Implementations

impl Clone for ViewerPrefsRecord

fn clone(&self) -> ViewerPrefsRecord

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ViewerPrefsRecord

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

Formats the value using the given formatter.

impl Default for ViewerPrefsRecord

fn default() -> ViewerPrefsRecord

Returns the “default value” for a type.