Struct render_tree::stylesheet::ColorAccumulator

pub struct ColorAccumulator { /* fields omitted */ }

A facility for creating visually inspectable representations of colored output so they can be easily tested.

A new color is represented as {style} and a reset is represented by {/}.

Attributes are printed in this order:

• Foreground color as fg:Color
• Background color as bg:Color
• Bold as bold
• Underline as underline
• Intense as bright

For example, the style "intense, bold red foreground" would be printed as:

{fg:Red bold intense}

Since this implementation attempts to make it possible to faithfully understand what real WriteColor implementations would do, it tries to approximate the contract in the WriteColor trait: "Subsequent writes to this write will use these settings until either reset is called or new color settings are set.")

• If set_color is called with a style, {...} is emitted containing the color attributes.
• If set_color is called with no style, {/} is emitted
• If reset is called, {/} is emitted

Methods

impl ColorAccumulator

Important traits for ColorAccumulator

impl Write for ColorAccumulator

pub fn new() -> ColorAccumulator

pub fn to_string(self) -> String

Trait Implementations

impl Write for ColorAccumulator

fn write(&mut self, buf: &[u8]) -> Result<usize>

Write a buffer into this writer, returning how many bytes were written.

fn flush(&mut self) -> Result<()>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>

Attempts to write an entire buffer into this writer.

fn write_fmt(&mut self, fmt: Arguments) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered.

fn by_ref(&mut self) -> &mut Self

Creates a "by reference" adaptor for this instance of Write.

impl WriteColor for ColorAccumulator

fn supports_color(&self) -> bool

Returns true if and only if the underlying writer supports colors.

fn set_color(&mut self, spec: &ColorSpec) -> Result<()>

Set the color settings of the writer.

fn reset(&mut self) -> Result<()>

Reset the current color settings to their original settings.

fn is_synchronous(&self) -> bool

Returns true if and only if the underlying writer must synchronously interact with an end user's device in order to control colors. By default, this always returns false.