Struct TooltipComponentDrawEvent 

pub struct TooltipComponentDrawEvent<'a> {
    pub stack: &'a ItemStack,
    pub draw: &'a mut dyn DrawContext,
    pub origin: [f32; 2],
    pub size: [f32; 2],
}

What ItemPart::tooltip_component_draw is told. Each field is that hook’s argument of the same name, described in the hook’s doc.

Fields

stack: &'a ItemStack

draw: &'a mut dyn DrawContext

origin: [f32; 2]

size: [f32; 2]