Struct WidgetAnnotation 

pub struct WidgetAnnotation {
    pub field_name: String,
    pub field_type: Option<FieldType>,
    pub value: Option<FieldValue>,
    pub default_value: Option<FieldValue>,
    pub flags: Option<i32>,
    pub max_len: Option<i32>,
    pub options: Option<Vec<ChoiceOption>>,
    pub quadding: Option<i32>,
    pub default_appearance: Option<String>,
}

/Widget annotation payload — also acts as the field dict when the widget is a single-leaf field (the common case). Multiple widgets sharing the same dotted field_name become /Kids of an implicit parent field at write time (radio groups).

Fields

field_name: String

/T — fully qualified field name. Dot-separated segments imply nesting (order.shipping.street → parents order → order.shipping and a leaf street). The PDF emitter renders only the last segment as /T; PDF resolves the full name by walking the /Parent chain.

field_type: Option<FieldType>

/FT field type. Optional — when absent the field inherits its type from the parent. Required on root fields.

value: Option<FieldValue>

/V field value — variant shape depends on /FT. Optional.

default_value: Option<FieldValue>

/DV default value — same shape rules as value.

flags: Option<i32>

/Ff field flags (PDF 1.7 spec § 12.7.3.1). Bit semantics vary by /FT; passed through verbatim.

max_len: Option<i32>

/MaxLen — text-field-only character limit.

options: Option<Vec<ChoiceOption>>

/Opt — choice-field options. Each entry is either a single display string (export = display) or [export display] pair.

quadding: Option<i32>

/Q quadding: 0=left, 1=center, 2=right.

default_appearance: Option<String>

/DA default appearance string. Falls back to the form-level /DA (or 0 0 0 rg /Helv 10 Tf when neither is set) at write time.

Trait Implementations

impl Clone for WidgetAnnotation

fn clone(&self) -> WidgetAnnotation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WidgetAnnotation

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

Formats the value using the given formatter.

impl Default for WidgetAnnotation

fn default() -> WidgetAnnotation

Returns the “default value” for a type.