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Sections and Subsections

Structure​

Like Beamer, Touying also has the concept of sections and subsections.

Generally, first-level, second-level, and third-level headings correspond to sections, subsections, and subsubsections, respectively, such as in the dewdrop theme.

#import "@preview/touying:0.5.5": *
#import themes.dewdrop: *

#show: dewdrop-theme.with(aspect-ratio: "16-9")

= Section

== Subsection

=== Title

Hello, Touying!

image

However, there are many times when we do not need subsections, so we also use first-level and second-level headings to correspond to sections and titles, respectively, such as in the university theme.

#import "@preview/touying:0.5.5": *
#import themes.university: *

#show: university-theme.with(aspect-ratio: "16-9")

= Section

== Title

Hello, Touying!

image

In fact, we can control this behavior through the slide-level parameter of the config-common function. slide-level represents the complexity of the nesting structure, starting from 0. For example, #show: university-theme.with(config-common(slide-level: 2)) is equivalent to both section and subsection creating new slides; while #show: university-theme.with(config-common(slide-level: 3)) is equivalent to section, subsection, and subsubsection all creating new slides.

Numbering​

To add numbering to sections and subsections, we simply use

#set heading(numbering: "1.1")
#show heading.where(level: 1): set heading(numbering: "1.")

This sets the default numbering to 1.1, and the section corresponds to the numbering 1..

Table of Contents​

Displaying a table of contents in Touying is straightforward:

#import "@preview/touying:0.5.5": *
#import themes.simple: *
#import "@preview/numbly:0.1.0": numbly

#set heading(numbering: numbly("{1}.", default: "1.1"))

#show: simple-theme.with(aspect-ratio: "16-9")

= Section

== Subsection

#components.adaptive-columns(outline(indent: 1em))

image

The outline(indent: 1em) is a native Typst function for the table of contents. The #components.adaptive-columns() function ensures that the table of contents occupies only one page, adapting by setting #columns(1, body) or #columns(2, body), and so on.

If you need a outline function that can display the current progress, you might consider using #components.progressive-outline() or #components.custom-progressive-outline(), as seen in the dewdrop theme.