Compositors

mutable struct Compositor
    layout::Expr
    elements::Dict{Symbol,LayoutElement}
end

A layout compositor, creates an updatable layout from an expression.

Compositor(layout::Expr; hpad::Int = 0, vpad::Int = 0, check::Bool = true, kwargs...)

Constructor. Parses a layout expression and creates LayoutElements for each element in the expression.

Base.show(io::IO, ::MIME"text/plain", compositor::Compositor)

Show a compositor.

collect_elements(ex::Expr)

Collects elements (individual LayoutElements) that are in a layout expresssion.

extract_renderable_from_kwargs(s, h, w; kwargs...)

When passing kwargs to a Compositor, check for renderables that are to be assigned to its content.

get_elements_and_sizes(ex::Expr)

Get elements names and sizes.

parse_single_element_layout(ex::Expr)

Parse an expression with a single layout element, like :(A(5, 25)) or :(A)

render(compositor::Compositor; show_placeholders = false)

Render a compositor's current layout.

Get a renderable from each LayoutElement in the compositor and evaluate the layout expression interpolating the renderables.

function update!(
    compositor::Compositor,
    id::Symbol,
    content::Union{String,AbstractRenderable},
)

Update a LayoutElement in a Compositor with new content. If the content's measure doesn't match the pre-defined size of the LayoutElement, it prints a warning message.