Struct dotrix_egui::FontDefinitions [−]
pub struct FontDefinitions {
pub font_data: BTreeMap<String, Cow<'static, [u8]>>,
pub fonts_for_family: BTreeMap<FontFamily, Vec<String, Global>>,
pub family_and_size: BTreeMap<TextStyle, (FontFamily, f32)>,
}
Expand description
Describes the font data and the sizes to use.
Often you would start with FontDefinitions::default()
and then add/change the contents.
let mut fonts = FontDefinitions::default();
// Large button text:
fonts.family_and_size.insert(
TextStyle::Button,
(FontFamily::Proportional, 32.0)
);
ctx.set_fonts(fonts);
You can also install your own custom fonts:
let mut fonts = FontDefinitions::default();
// Install my own font (maybe supporting non-latin characters):
fonts.font_data.insert("my_font".to_owned(),
std::borrow::Cow::Borrowed(include_bytes!("../../fonts/Ubuntu-Light.ttf"))); // .ttf and .otf supported
// Put my font first (highest priority):
fonts.fonts_for_family.get_mut(&FontFamily::Proportional).unwrap()
.insert(0, "my_font".to_owned());
// Put my font as last fallback for monospace:
fonts.fonts_for_family.get_mut(&FontFamily::Monospace).unwrap()
.push("my_font".to_owned());
ctx.set_fonts(fonts);
Fields
font_data: BTreeMap<String, Cow<'static, [u8]>>
List of font names and their definitions.
The definition must be the contents of either a .ttf
or .otf
font file.
epaint
has built-in-default for these,
but you can override them if you like.
fonts_for_family: BTreeMap<FontFamily, Vec<String, Global>>
Which fonts (names) to use for each FontFamily
.
The list should be a list of keys into Self::font_data
.
When looking for a character glyph epaint
will start with
the first font and then move to the second, and so on.
So the first font is the primary, and then comes a list of fallbacks in order of priority.
family_and_size: BTreeMap<TextStyle, (FontFamily, f32)>
The FontFamily
and size you want to use for a specific TextStyle
.
Trait Implementations
impl Clone for FontDefinitions
impl Clone for FontDefinitions
pub fn clone(&self) -> FontDefinitions
pub fn clone(&self) -> FontDefinitions
Returns a copy of the value. Read more
Performs copy-assignment from source
. Read more
impl Debug for FontDefinitions
impl Debug for FontDefinitions
impl Default for FontDefinitions
impl Default for FontDefinitions
pub fn default() -> FontDefinitions
pub fn default() -> FontDefinitions
Returns the “default value” for a type. Read more
impl PartialEq<FontDefinitions> for FontDefinitions
impl PartialEq<FontDefinitions> for FontDefinitions
pub fn eq(&self, other: &FontDefinitions) -> bool
pub fn eq(&self, other: &FontDefinitions) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
pub fn ne(&self, other: &FontDefinitions) -> bool
pub fn ne(&self, other: &FontDefinitions) -> bool
This method tests for !=
.
impl StructuralPartialEq for FontDefinitions
Auto Trait Implementations
impl RefUnwindSafe for FontDefinitions
impl Send for FontDefinitions
impl Sync for FontDefinitions
impl Unpin for FontDefinitions
impl UnwindSafe for FontDefinitions
Blanket Implementations
Mutably borrows from an owned value. Read more
Instruments this type with the provided Span
, returning an
Instrumented
wrapper. Read more