Struct Text 

pub struct Text {
    pub font: Atlas<Color3>,
    pub geom: Mesh<TexCoord>,
    /* private fields */
}

Text represented as texture-mapped geometry, one quad per glyph.

Fields

font: Atlas<Color3>

geom: Mesh<TexCoord>

Implementations

impl Text

pub fn new(font: Atlas<Color3>) -> Self

Creates a new empty text object with the given font.

pub fn clear(&mut self)

Erases all text from self.

pub fn sample(&self, uv: TexCoord) -> Color3

Samples the font at uv.

Trait Implementations

impl Clone for Text

fn clone(&self) -> Text

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Write for Text

Available on crate feature std only.

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

Creates geometry to represent the bytes in buf.

This method uses each byte in buf as an index to the font. Only up to 256 glyphs are thus supported. The font should have enough glyphs to cover each byte value in buf.

Because a one-to-one mapping from bytes to glyphs is used, the result will be mojibake if the buffer contains UTF-8 encoded data beyond the ASCII range.

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

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

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers.

fn is_write_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)

Determines if this Writer has an efficient write_vectored implementation.

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

Attempts to write an entire buffer into this writer.

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

🔬This is a nightly-only experimental API. (write_all_vectored)

Attempts to write multiple buffers into this writer.

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

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

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

where Self: Sized,

Creates a “by reference” adapter for this instance of Write.

impl Write for Text

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

Creates geometry to represent the characters in s.

This method iterates over the chars of the string, and uses the value of each char as an index into the font. As such, the font should have enough glyphs to cover all the characters used.

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.