lazy-layout

lazy-layout(direction: ttb, body)(source)

Equalize the sizes of multiple side-by-side (or stacked) blocks along one axis, while keeping the overall container size equal to the largest block (not the full page size).

Wrap a multi-block layout with lazy-layout so that lazy-v or lazy-h markers inside each block are resolved correctly. The function first measures the natural size of the content (ignoring all lazy markers), then re-renders it at that fixed size with the markers activated. This causes the fractional spaces to fill only the remaining room inside each block up to the largest block's size, making all blocks the same size without the container growing beyond the largest block.

The direction parameter controls which axis is equalized and which lazy marker type is activated:

• Vertical directions (ttb, btt): activates lazy-v markers, equalizes block heights. This is the default and matches side-by-side(lazy-layout: true).
• Horizontal directions (ltr, rtl): activates lazy-h markers, equalizes block widths.

Mixing lazy-v and lazy-h markers inside the same lazy-layout call will panic.

Use side-by-side(lazy-layout: true) as a convenient shorthand for the vertical case, or wrap a manual grid / stack directly:

// Vertical (default): equalize block heights
#components.lazy-layout(grid(
  columns: (1fr, 1fr),
  block(width: 100%)[
    #lorem(10)
    #components.lazy-v(1fr)
    Bottom left.
  ],
  block(width: 100%)[
    #lorem(20)
    #components.lazy-v(1fr)
    Bottom right.
  ],
))

// Horizontal: equalize block widths
#components.lazy-layout(
  direction: ltr,
  stack(
    dir: ltr,
    block(height: 100%)[Left. #components.lazy-h(1fr) Right.],
    block(height: 100%)[Longer left. #components.lazy-h(1fr) Right.],
  ),
)

Parameters

direction : direction    default: ttb

The axis along which blocks are equalized. Accepts any Typst direction value (ttb, btt, ltr, rtl). Vertical directions activate lazy-v; horizontal directions activate lazy-h. Default is ttb.

body : content

The content that may contain lazy-v or lazy-h markers.

Returns: content