Struct ytesrev::latex::latex_obj::LatexObj

pub struct LatexObj {
    pub inner: Option<PngImage>,
    pub expr: &'static str,
    pub is_text: bool,
    /* private fields */
}

Represents a LaTeX expression. When loaded, this will create a PNG of the expression and load it.

Fields

inner: Option<PngImage>

The rendered document

expr: &'static str

The LaTeX expression that will be rendered

is_text: bool

A LaTeX expression can either be text or math, with math being surrounded by dollar sings

Implementations

impl LatexObj

pub fn math(expr: &'static str) -> LatexObj

Create a LaTeX object containing math

use ytesrev::latex::LatexObj;

let e_mc2 = LatexObj::math("E = mc^2");
assert!(!e_mc2.is_text);
assert_eq!(e_mc2.expr, "E = mc^2");

pub fn text(expr: &'static str) -> LatexObj

Create a LaTeX object containing text

use ytesrev::latex::LatexObj;

let lorem = LatexObj::text("Lorem Ipsum");
assert!(lorem.is_text);
assert_eq!(lorem.expr, "Lorem Ipsum");

Trait Implementations

impl Drawable for LatexObj

fn content(&self) -> Vec<&dyn Drawable>

What this object contains

fn content_mut(&mut self) -> Vec<&mut dyn Drawable>

What this object contains, mutably

fn draw(
    &self,
    canvas: &mut Canvas<Window>,
    position: &Position,
    settings: DrawSettings
)

Draw everything

fn register(&mut self)

Register all content. This is mostly just used by LatexObjs, that need to be registered before loaded.

fn load(&mut self)

Load all content

fn step(&mut self)

When the user presses space, the state of the presentation is advanced. This method is what is called.

fn state(&self) -> State

What state the object is in

fn event(&mut self, e: Event)

When any event occurs

fn update(&mut self, dt: f64)

Tick the object

impl ImageContainer for LatexObj

fn get_data(&self) -> &Vec<u8>

Retrieve the data in the image

fn get_data_mut(&mut self) -> &mut Vec<u8>

Retrieve the data in the image, mutably

fn into_data(self) -> Vec<u8>

Retrieve the data in the image, consuming the object

fn as_knownsize(&self) -> &dyn KnownSize

Convert the object to a dynamic KnownSize object, as rust doesn’t support calling KnownSize -methods directly on this object

impl KnownSize for LatexObj

fn width(&self) -> usize

The width of the object

fn height(&self) -> usize

The height of the object