Can Typst detect the current column?

Questions
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11

(Not to toot my own horn too much, but here’s a suggestion using my marginalia package:)

To detect what column you’re in, cmparing the current x coordinate with the page width seems unavoidable. However, for the actual placing-something-in-the-margin-relatice-to-the-current-line, you can use marginalia:

#import "@preview/marginalia:0.3.0" as marginalia: note

#show: marginalia.setup.with(
  // customize margin width here
)
#set page(columns: 2, height: 10cm)

#let hd(t) = context {
  text(fill: blue, t)
  let side = if here().position().x < (page.width / 2) { "left" } else { "right" }
  note(side: side, shift: "ignore", counter: none, alignment: "bottom", dy: 5pt, align(center, rect(width: 20pt, height: 20pt)))
}
Rest of code for example below 
Foo #hd[Handout]

#lorem(20)

- Foo #hd[Handout]
  - Foo #hd[Handout!]
    
   - Foo #hd[Handout]

   
Foo #hd[Handout]

#lorem(20)

- Foo #hd[Handout]
  - Foo #hd[Handout!]
    
   - Foo #hd[Handout]

image
image806×393 47.1 KB

This hd function should work no matter where it is nested, and always place the image/rect in the nearest margin.

  • Replace rect(width: 20pt, height: 20pt) in the above code with something that draws your image, and dy: 5pt with something appropriate (here, dy is how far below the text baseline your image is supposed to go)
  • Replace text(fill: blue, t) however you want to style the (blue) text
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