Struct pdfium_render::form_field_list::PdfFormListBoxField

pub struct PdfFormListBoxField<'a> { /* private fields */ }

Expand description

A single PdfFormField of type PdfFormFieldType::ListBox. The form field object defines an interactive drop-down list widget that allows the user to select a value from a list of options.

Form fields in Pdfium are wrapped inside page annotations of type PdfPageAnnotationType::Widget or PdfPageAnnotationType::XfaWidget. User-specified values can be retrieved directly from each form field object by unwrapping the form field from the annotation, or in bulk from the PdfForm::field_values() function.

Implementations§

impl<'a> PdfFormListBoxField<'a>

pub fn bindings(&self) -> &'a dyn PdfiumLibraryBindings

Returns the PdfiumLibraryBindings used by this PdfFormListBoxField object.

pub fn options(&self) -> &PdfFormFieldOptions<'_>

Returns the collection of selectable options in this PdfFormListBoxField.

pub fn value(&self) -> Option<String>

Returns the displayed label for the currently selected option in this PdfFormListBoxField object, if any.

Trait Implementations§

impl<'a> From<PdfFormListBoxField<'a>> for PdfFormField<'a>

fn from(field: PdfFormListBoxField<'a>) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

impl<'a> !RefUnwindSafe for PdfFormListBoxField<'a>

impl<'a> !Send for PdfFormListBoxField<'a>

impl<'a> !Sync for PdfFormListBoxField<'a>

impl<'a> Unpin for PdfFormListBoxField<'a>

impl<'a> !UnwindSafe for PdfFormListBoxField<'a>

Blanket Implementations§

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<'a, T> PdfFormFieldCommon for Twhere T: PdfFormFieldPrivate<'a>,

fn name(&self) -> Option<String>

Returns the name of this PdfFormField, if any.

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.