Struct fontdue::layout::Layout

pub struct Layout { /* fields omitted */ }

Text layout requires a small amount of heap usage which is contained in the Layout struct. This context is reused between layout calls. Reusing the Layout struct will greatly reduce memory allocations and is advisable for performance.

Implementations

impl Layout

pub fn new() -> Layout

pub fn layout_horizontal<T: Borrow<Font>>(
    &mut self,
    fonts: &[T],
    styles: &[&TextStyle<'_>],
    settings: &LayoutSettings,
    output: &mut Vec<GlyphPosition>
)

Performs layout for text horizontally, and wrapping vertically. This makes a best effort attempt at laying out the text defined in the given styles with the provided layout settings. Text may overflow out of the bounds defined in the layout settings and it's up to the application to decide how to deal with this. Works with &Font or &[&Font].

Characters from the input string can only be omitted from the output, they are never reordered. The output buffer will always contain characters in the order they were defined in the styles.