Struct FontsView

pub struct FontsView<'a> {
    pub fonts: &'a mut FontsImpl,
    /* private fields */
}

The context’s collection of fonts, with this context’s pixels_per_point. This is what you use to do text layout.

Fields

fonts: &'a mut FontsImpl

Implementations

impl FontsView<'_>

pub fn max_texture_side(&self) -> usize

pub fn definitions(&self) -> &FontDefinitions

pub fn image(&self) -> ColorImage

The full font atlas image.

pub fn font_image_size(&self) -> [usize; 2]

Current size of the font image. Pass this to crate::Tessellator.

pub fn glyph_width(&mut self, font_id: &FontId, c: char) -> f32

Width of this character in points.

If the font doesn’t exist, this will return 0.0.

pub fn has_glyph(&mut self, font_id: &FontId, c: char) -> bool

Can we display this glyph?

pub fn has_glyphs(&mut self, font_id: &FontId, s: &str) -> bool

Can we display all the glyphs in this text?

pub fn row_height(&mut self, font_id: &FontId) -> f32

Height of one row of text in points.

Returns a value rounded to emath::GUI_ROUNDING.

pub fn families(&self) -> Vec<FontFamily>

List of all known font families.

pub fn layout_job(&mut self, job: LayoutJob) -> Arc<Galley>

Layout some text.

This is the most advanced layout function. See also Self::layout, Self::layout_no_wrap and Self::layout_delayed_color.

The implementation uses memoization so repeated calls are cheap.

pub fn num_galleys_in_cache(&self) -> usize

pub fn font_atlas_fill_ratio(&self) -> f32

How full is the font atlas?

This increases as new fonts and/or glyphs are used, but can also decrease in a call to Fonts::begin_pass.

pub fn layout( &mut self, text: String, font_id: FontId, color: Color32, wrap_width: f32, ) -> Arc<Galley>

Will wrap text at the given width and line break at \n.

The implementation uses memoization so repeated calls are cheap.

pub fn layout_no_wrap( &mut self, text: String, font_id: FontId, color: Color32, ) -> Arc<Galley>

Will line break at \n.

The implementation uses memoization so repeated calls are cheap.

pub fn layout_delayed_color( &mut self, text: String, font_id: FontId, wrap_width: f32, ) -> Arc<Galley>

Like Self::layout, made for when you want to pick a color for the text later.

The implementation uses memoization so repeated calls are cheap.