Struct ChoiceConfig 

pub struct ChoiceConfig {
    pub combo: bool,
    pub editable: bool,
    pub multi_select: bool,
    pub read_only: bool,
}

How a choice field behaves, read once from its flags.

Four independent /Ff bits; see TextConfig for why they stay separate named fields rather than becoming a mask.

use pdfrum_form::ChoiceConfig;

// The default record is a plain single-select list box.
let config = ChoiceConfig::default();
assert!(!config.combo);
assert!(!config.multi_select);

Fields

combo: bool

Whether the field is a drop-down rather than a list.

editable: bool

Whether a combo box also accepts typed text.

multi_select: bool

Whether a list box accepts more than one selected row.

read_only: bool

Whether the field refuses edits.

Implementations

impl ChoiceConfig

pub fn read(flags: FieldFlags) -> ChoiceConfig

Reads a choice field’s configuration from its flags.

The editable bit is a combo box’s alone and the multi-select bit is a list box’s alone: the same bit set on the other kind reads as nothing, because it does not mean that there.

use pdfrum_doc::form::FieldFlags;
use pdfrum_form::ChoiceConfig;

// Combo (bit 18) plus editable (bit 19).
let combo = ChoiceConfig::read(FieldFlags::from_bits((1 << 17) | (1 << 18)));
assert!(combo.combo && combo.editable);

// The same editable bit on a list box is not read as anything.
let list = ChoiceConfig::read(FieldFlags::from_bits(1 << 18));
assert!(!list.combo && !list.editable);

// And multi-select (bit 22) is only a list box's.
assert!(ChoiceConfig::read(FieldFlags::from_bits(1 << 21)).multi_select);

Trait Implementations

impl Clone for ChoiceConfig

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChoiceConfig

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

Formats the value using the given formatter.

impl Default for ChoiceConfig

fn default() -> Self

Returns the “default value” for a type.

impl Eq for ChoiceConfig

impl PartialEq for ChoiceConfig

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ChoiceConfig