Struct gtk4::EntryBuffer

pub struct EntryBuffer { /* private fields */ }

A EntryBuffer hold the text displayed in a Text widget.

A single EntryBuffer object can be shared by multiple widgets which will then share the same text content, but not the cursor position, visibility attributes, icon etc.

EntryBuffer may be derived from. Such a derived class might allow text to be stored in an alternate location, such as non-pageable memory, useful in the case of important passwords. Or a derived class could integrate with an application’s concept of undo/redo.

Properties

length

The length (in characters) of the text in buffer.

Readable

max-length

The maximum length (in characters) of the text in the buffer.

Readable | Writeable

text

The contents of the buffer.

Readable | Writeable

Signals

deleted-text

The text is altered in the default handler for this signal.

If you want access to the text after the text has been modified, use G_CONNECT_AFTER.

inserted-text

This signal is emitted after text is inserted into the buffer.

Implements

EntryBufferExt, [trait@glib::ObjectExt], EntryBufferExtManual

Implementations

impl EntryBuffer

pub const NONE: Option<&'static EntryBuffer> = None

pub fn builder() -> EntryBufferBuilder

Creates a new builder-pattern struct instance to construct EntryBuffer objects.

This method returns an instance of EntryBufferBuilder which can be used to create EntryBuffer objects.

impl EntryBuffer

pub fn new(initial_chars: impl IntoOptionalGStr) -> Self

Create a new EntryBuffer object.

Optionally, specify initial text to set in the buffer.

initial_chars

initial buffer text

n_initial_chars

number of characters in @initial_chars, or -1

Returns

A new EntryBuffer object.

Trait Implementations

impl Clone for EntryBuffer

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for EntryBuffer

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

Formats the value using the given formatter.

impl Default for EntryBuffer

fn default() -> Self

Returns the “default value” for a type.

impl HasParamSpec for EntryBuffer

type ParamSpec = ParamSpecObject

type SetValue = EntryBuffer

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, EntryBuffer>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for EntryBuffer

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T: EntryBufferImpl> IsSubclassable<T> for EntryBuffer

fn class_init(class: &mut Class<Self>)

Override the virtual methods of this class for the given subclass and do other class initialization.

fn instance_init(instance: &mut InitializingObject<T>)

Instance specific initialization.

impl Ord for EntryBuffer

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl ParentClassIs for EntryBuffer

type Parent = Object

impl<OT: ObjectType> PartialEq<OT> for EntryBuffer

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<OT: ObjectType> PartialOrd<OT> for EntryBuffer

fn partial_cmp(&self, other: &OT) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for EntryBuffer

fn static_type() -> Type

Returns the type identifier of Self.

impl Write for EntryBuffer

fn write_str(&mut self, s: &str) -> Result

Writes a string slice into this writer, returning whether the write succeeded.

fn write_char(&mut self, c: char) -> Result<(), Error>

Writes a char into this writer, returning whether the write succeeded.

fn write_fmt(&mut self, args: Arguments<'_>) -> Result<(), Error>

Glue for usage of the write! macro with implementors of this trait.

impl Eq for EntryBuffer

impl IsA<EntryBuffer> for PasswordEntryBuffer

Available on crate feature v4_4 only.