Trait TextBuffer 

pub trait TextBuffer {
    // Required methods
    fn is_secure(&self) -> bool;
    fn insert_text_at_char_idx(
        &mut self,
        char_idx: usize,
        text_to_insert: &str,
    ) -> usize;
    fn delete_text_char_range(&mut self, char_range: Range<usize>);
    fn char_len(&self) -> usize;
    fn to_string(&self) -> String;
}

Buffer used by SecureTextEdit.

Implemented for String always, and for [secure_types::SecureString] when the secure-types feature is on. Secure buffers report TextBuffer::is_secure so the widget can avoid extra copies.

Required Methods

fn is_secure(&self) -> bool

true when the backing store should not be cloned into egui history.

fn insert_text_at_char_idx( &mut self, char_idx: usize, text_to_insert: &str, ) -> usize

Insert text_to_insert at the given char index. Returns chars written.

fn delete_text_char_range(&mut self, char_range: Range<usize>)

Delete the half-open char range.

fn char_len(&self) -> usize

Number of Unicode scalar values.

fn to_string(&self) -> String

Snapshot the contents. Prefer not calling this on a secure buffer.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl TextBuffer for String

fn is_secure(&self) -> bool

fn insert_text_at_char_idx( &mut self, char_idx: usize, text_to_insert: &str, ) -> usize

fn delete_text_char_range(&mut self, char_range: Range<usize>)

fn char_len(&self) -> usize

fn to_string(&self) -> String

Implementors