Struct WindowTextSystem 

pub struct WindowTextSystem { /* private fields */ }

The GPUI text layout subsystem.

Implementations

impl WindowTextSystem

pub fn new(text_system: Arc<TextSystem>) -> Self

Create a new WindowTextSystem with the given TextSystem.

pub fn shape_line( &self, text: SharedString, font_size: Pixels, runs: &[TextRun], force_width: Option<Pixels>, ) -> ShapedLine

Shape the given line, at the given font_size, for painting to the screen. Subsets of the line can be styled independently with the runs parameter.

Note that this method can only shape a single line of text. It will panic if the text contains newlines. If you need to shape multiple lines of text, use Self::shape_text instead.

pub fn shape_text( &self, text: SharedString, font_size: Pixels, runs: &[TextRun], wrap_width: Option<Pixels>, line_clamp: Option<usize>, ) -> Result<SmallVec<[WrappedLine; 1]>>

Shape a multi line string of text, at the given font_size, for painting to the screen. Subsets of the text can be styled independently with the runs parameter. If wrap_width is provided, the line breaks will be adjusted to fit within the given width.

pub fn layout_line( &self, text: &str, font_size: Pixels, runs: &[TextRun], force_width: Option<Pixels>, ) -> Arc<LineLayout>

Layout the given line of text, at the given font_size. Subsets of the line can be styled independently with the runs parameter. Generally, you should prefer to use Self::shape_line instead, which can be painted directly.

pub fn layout_width( &self, font_id: FontId, font_size: Pixels, ch: char, ) -> Pixels

Returns the shaped layout width of for the given character, in the given font and size.

pub fn em_layout_width(&self, font_id: FontId, font_size: Pixels) -> Pixels

Returns the shaped layout width of an em.

Trait Implementations

impl Deref for WindowTextSystem

type Target = Arc<TextSystem>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.