Struct ThemeCursor 

pub struct ThemeCursor<T> { /* private fields */ }

A cycling cursor over a list of themes of type T.

peek() returns the current theme without moving. next() and prev() advance or retreat the cursor and return the new current theme. Both wrap around at the ends.

To iterate over all themes without cycling, use ThemeCursor::themes.

Type parameters

• ThemeCursor<tca_types::Theme> — raw themes; see ThemeCursor::with_builtins etc.
• [tca_ratatui::TcaThemeCursor] — resolved Ratatui themes; convenience constructors are available via tca_ratatui.

Implementations

impl<T> ThemeCursor<T>

pub fn new(themes: Vec<T>) -> Self

Create a cursor from an explicit list. The cursor starts at the first theme.

pub fn peek(&self) -> Option<&T>

Returns the current theme without moving the cursor.

pub fn next(&mut self) -> Option<&T>

Advances the cursor to the next theme (wrapping) and returns it.

Returns None if the cursor is empty.

pub fn prev(&mut self) -> Option<&T>

Retreats the cursor to the previous theme (wrapping) and returns it.

Returns None if the cursor is empty.

pub fn themes(&self) -> &[T]

Returns a slice of all themes in the cursor.

pub fn len(&self) -> usize

Returns the number of themes.

pub fn is_empty(&self) -> bool

Returns true if the cursor contains no themes.

impl ThemeCursor<Theme>

Convenience constructors for ThemeCursor<Theme>.

pub fn with_builtins() -> Self

All built-in themes.

pub fn with_user_themes() -> Self

User-installed themes only.

pub fn with_all_themes() -> Self

Built-ins + user themes. User themes with matching names override builtins.