television_previewers::previewers::cache

Struct PreviewCache

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pub struct PreviewCache { /* private fields */ }
Expand description

A cache for previews. The cache is implemented as an LRU cache with a fixed size.

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impl PreviewCache

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pub fn new(capacity: usize) -> Self

Create a new preview cache with the given capacity.

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pub fn get(&self, key: &str) -> Option<Arc<Preview>>

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pub fn insert(&mut self, key: String, preview: &Arc<Preview>)

Insert a new preview into the cache. If the cache is full, the oldest entry will be removed. If the key is already in the cache, the preview will be updated.

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pub fn get_or_insert<F>(&mut self, key: String, f: F) -> Arc<Preview>
where F: FnOnce() -> Preview,

Get the preview for the given key, or insert a new preview if it doesn’t exist.

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impl Debug for PreviewCache

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

Formats the value using the given formatter. Read more
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impl Default for PreviewCache

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<D> OwoColorize for D

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fn fg<C>(&self) -> FgColorDisplay<'_, C, Self>
where C: Color,

Set the foreground color generically Read more
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fn bg<C>(&self) -> BgColorDisplay<'_, C, Self>
where C: Color,

Set the background color generically. Read more
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fn black<'a>(&'a self) -> FgColorDisplay<'a, Black, Self>

Change the foreground color to black
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fn on_black<'a>(&'a self) -> BgColorDisplay<'a, Black, Self>

Change the background color to black
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fn red<'a>(&'a self) -> FgColorDisplay<'a, Red, Self>

Change the foreground color to red
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fn on_red<'a>(&'a self) -> BgColorDisplay<'a, Red, Self>

Change the background color to red
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fn green<'a>(&'a self) -> FgColorDisplay<'a, Green, Self>

Change the foreground color to green
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fn on_green<'a>(&'a self) -> BgColorDisplay<'a, Green, Self>

Change the background color to green
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fn yellow<'a>(&'a self) -> FgColorDisplay<'a, Yellow, Self>

Change the foreground color to yellow
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fn on_yellow<'a>(&'a self) -> BgColorDisplay<'a, Yellow, Self>

Change the background color to yellow
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fn blue<'a>(&'a self) -> FgColorDisplay<'a, Blue, Self>

Change the foreground color to blue
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fn on_blue<'a>(&'a self) -> BgColorDisplay<'a, Blue, Self>

Change the background color to blue
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fn magenta<'a>(&'a self) -> FgColorDisplay<'a, Magenta, Self>

Change the foreground color to magenta
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fn on_magenta<'a>(&'a self) -> BgColorDisplay<'a, Magenta, Self>

Change the background color to magenta
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fn purple<'a>(&'a self) -> FgColorDisplay<'a, Magenta, Self>

Change the foreground color to purple
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fn on_purple<'a>(&'a self) -> BgColorDisplay<'a, Magenta, Self>

Change the background color to purple
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fn cyan<'a>(&'a self) -> FgColorDisplay<'a, Cyan, Self>

Change the foreground color to cyan
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fn on_cyan<'a>(&'a self) -> BgColorDisplay<'a, Cyan, Self>

Change the background color to cyan
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fn white<'a>(&'a self) -> FgColorDisplay<'a, White, Self>

Change the foreground color to white
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fn on_white<'a>(&'a self) -> BgColorDisplay<'a, White, Self>

Change the background color to white
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fn default_color<'a>(&'a self) -> FgColorDisplay<'a, Default, Self>

Change the foreground color to the terminal default
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fn on_default_color<'a>(&'a self) -> BgColorDisplay<'a, Default, Self>

Change the background color to the terminal default
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fn bright_black<'a>(&'a self) -> FgColorDisplay<'a, BrightBlack, Self>

Change the foreground color to bright black
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fn on_bright_black<'a>(&'a self) -> BgColorDisplay<'a, BrightBlack, Self>

Change the background color to bright black
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fn bright_red<'a>(&'a self) -> FgColorDisplay<'a, BrightRed, Self>

Change the foreground color to bright red
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fn on_bright_red<'a>(&'a self) -> BgColorDisplay<'a, BrightRed, Self>

Change the background color to bright red
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fn bright_green<'a>(&'a self) -> FgColorDisplay<'a, BrightGreen, Self>

Change the foreground color to bright green
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fn on_bright_green<'a>(&'a self) -> BgColorDisplay<'a, BrightGreen, Self>

Change the background color to bright green
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fn bright_yellow<'a>(&'a self) -> FgColorDisplay<'a, BrightYellow, Self>

Change the foreground color to bright yellow
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fn on_bright_yellow<'a>(&'a self) -> BgColorDisplay<'a, BrightYellow, Self>

Change the background color to bright yellow
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fn bright_blue<'a>(&'a self) -> FgColorDisplay<'a, BrightBlue, Self>

Change the foreground color to bright blue
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fn on_bright_blue<'a>(&'a self) -> BgColorDisplay<'a, BrightBlue, Self>

Change the background color to bright blue
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fn bright_magenta<'a>(&'a self) -> FgColorDisplay<'a, BrightMagenta, Self>

Change the foreground color to bright magenta
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fn on_bright_magenta<'a>(&'a self) -> BgColorDisplay<'a, BrightMagenta, Self>

Change the background color to bright magenta
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fn bright_purple<'a>(&'a self) -> FgColorDisplay<'a, BrightMagenta, Self>

Change the foreground color to bright purple
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fn on_bright_purple<'a>(&'a self) -> BgColorDisplay<'a, BrightMagenta, Self>

Change the background color to bright purple
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fn bright_cyan<'a>(&'a self) -> FgColorDisplay<'a, BrightCyan, Self>

Change the foreground color to bright cyan
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fn on_bright_cyan<'a>(&'a self) -> BgColorDisplay<'a, BrightCyan, Self>

Change the background color to bright cyan
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fn bright_white<'a>(&'a self) -> FgColorDisplay<'a, BrightWhite, Self>

Change the foreground color to bright white
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fn on_bright_white<'a>(&'a self) -> BgColorDisplay<'a, BrightWhite, Self>

Change the background color to bright white
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fn bold<'a>(&'a self) -> BoldDisplay<'a, Self>

Make the text bold
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fn dimmed<'a>(&'a self) -> DimDisplay<'a, Self>

Make the text dim
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fn italic<'a>(&'a self) -> ItalicDisplay<'a, Self>

Make the text italicized
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fn underline<'a>(&'a self) -> UnderlineDisplay<'a, Self>

Make the text italicized
Make the text blink
Make the text blink (but fast!)
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fn reversed<'a>(&'a self) -> ReversedDisplay<'a, Self>

Swap the foreground and background colors
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fn hidden<'a>(&'a self) -> HiddenDisplay<'a, Self>

Hide the text
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fn strikethrough<'a>(&'a self) -> StrikeThroughDisplay<'a, Self>

Cross out the text
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fn color<Color>(&self, color: Color) -> FgDynColorDisplay<'_, Color, Self>
where Color: DynColor,

Set the foreground color at runtime. Only use if you do not know which color will be used at compile-time. If the color is constant, use either OwoColorize::fg or a color-specific method, such as OwoColorize::green, Read more
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fn on_color<Color>(&self, color: Color) -> BgDynColorDisplay<'_, Color, Self>
where Color: DynColor,

Set the background color at runtime. Only use if you do not know what color to use at compile-time. If the color is constant, use either OwoColorize::bg or a color-specific method, such as OwoColorize::on_yellow, Read more
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fn fg_rgb<const R: u8, const G: u8, const B: u8>( &self, ) -> FgColorDisplay<'_, CustomColor<R, G, B>, Self>

Set the foreground color to a specific RGB value.
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fn bg_rgb<const R: u8, const G: u8, const B: u8>( &self, ) -> BgColorDisplay<'_, CustomColor<R, G, B>, Self>

Set the background color to a specific RGB value.
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fn truecolor(&self, r: u8, g: u8, b: u8) -> FgDynColorDisplay<'_, Rgb, Self>

Sets the foreground color to an RGB value.
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fn on_truecolor(&self, r: u8, g: u8, b: u8) -> BgDynColorDisplay<'_, Rgb, Self>

Sets the background color to an RGB value.
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fn style(&self, style: Style) -> Styled<&Self>

Apply a runtime-determined style
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more