How to fix the bug (?) for outline entries with long titles?

Questions
1

Sorry I couldn’t find a title that concisely described the bug.

Here is the code:

#outline()
= This is a very very very very very very very very very very very very very very very very long title

image
image721×202 26.3 KB

Here the page number in the outline is pushed to the next line, but it is not right-aligned. Is this normal, and if not, is there a way to fix this?

2

It’s a known issue, but in my thesis I had to fix this + first line indent issue. The code I used is too complicated, and I need to extract it, so I don’t wanna do this. But I copied the core logic down and changed it a bit:

#let fix-multi-line-outline-entries = it => {
  let indent = {
    let indent = outline.indent
    if type(indent) != relative {
      indent = 0pt
    }
    h(indent * (it.level - 1))
  }
  let count = counter(heading).at(it.element.location())
  let space-width = measure("| |").width - measure("||").width
  let make-entry(body) = {
    let content = [#body #box(width: 1fr, it.fill) #it.page]
    let content = if it.element.numbering != none {
      grid(
        columns: 2,
        gutter: space-width,
        numbering(it.element.numbering, ..count),
        content,
      )
    } else {
      content
    }
    link(it.element.location(), content)
  }
  box(layout(((width, height)) => {
    let entry = make-entry(it.element.body)
    // Fix long headings that don't trigger filler to extend to the end.
    if measure(indent + box(entry)).width > width {
      let content = it.element.body
      // If heading is `sequence`.
      if content.func() == [].func() {
        let mapper = x => if x != [ ] { x.text } else { " " }
        content = content.children.map(mapper).join()
        content = [#content]
      }
      assert(content.func() == text, message: "not implemented")
      let parts = content.text.split()
      let last = parts.pop()
      let first = parts.join(" ")
      let new = first + parbreak() + last
      // Ignore headings that are long enough to trigger the filler.
      if measure(new).width <= width {
        entry = make-entry(new)
      }
    }
    indent + box(entry)
  }))
}

#show outline.entry: fix-multi-line-outline-entries

#outline()

#let prefix = "This is a" + " very" * 16

= #prefix long titl
= #prefix long title
= #prefix long titlee

#set heading(numbering: "1.")

= #prefix longg
= #prefix long tit
= #prefix long titl

image
image587×626 73.4 KB

Few notes:

  1. here the indentation feature is broken, but it can probably be fixed somehow or removed completely if not needed;
  2. I made headings so that 1st is one-liner, then the bug, then two-liner (without and with numbering);
  3. it’s so huge and (somewhat) broken, there should be something more practical, but an ultimate solution might be even bigger;
  4. the underlying outline.entry structure is most definitely different, so styling will be applied incorrectly in some cases.
1 Like
3

Unfortunately, this is not a copy paste solution.

1 Like
4

I suspect that the outline issue is essentially the same as this problem with a QED symbol that needs to be on the right:

And indeed Laurenz’ solution can be adapted to this use case:

#show outline.entry: it => {
  link(it.element.location(), {
    it.body
    box(width: 0pt)
    box(width: 1fr, it.fill)
    sym.wj
    [#it.element.location().page()]
  })
}

#outline()
#outline(
  title: [List of Figures],
  target: figure.where(kind: image)
)


#let prefix = "This is a" + " very" * 16
= #prefix long title
= #prefix long! title
== #prefix long title

#set heading(numbering: (..nums) => "Ch " + numbering("1.", ..nums))
#let prefix = "This is a" + " very" * 15
= #prefix looong title
= #prefix loooong title
== #prefix long title

#let prefix = "This is a" + " very" * 13
#figure(
  [a],
  caption: [#prefix looong caption]
)
#figure(
  [a],
  caption: [#prefix looong! caption]
)
#figure(
  [a],
  caption: [#prefix loooong caption]
)
Rendered outlines

outline
outline1601×985 236 KB

What I didn’t attempt is duplicate @Andrew’s indentation of follow-up lines: for example, the word “title” in the second line of the third entry starts to the left of the start of the entry. Other than that, I think this solution worked pretty well.

1 Like