#+TITLE: UML
#+AUTHOR: Christopher James Hayward
#+EMAIL: chris@chrishayward.xyz

#+PROPERTY: header-args:emacs-lisp :tangle uml.el :comments org
#+PROPERTY: header-args:shell      :tangle no
#+PROPERTY: header-args            :results silent :eval no-export :comments org

#+OPTIONS: num:nil toc:nil todo:nil tasks:nil tags:nil
#+OPTIONS: skip:nil author:nil email:nil creator:nil timestamp:nil

Draw UML[fn:1] diagrams inside Emacs.

* Setup

Make sure all of the required components are installed on your system before loading the module.

#+begin_src shell
RUN apt install -y default-jre
#+end_src

* Config

Download and install ~PlantUML~[fn:2], a text-based markup language for creating UML[fn:1] diagrams. You can read my notes about using the software here[fn:3]. Support for Emacs is added through the ~plantuml-mode~[fn:4] package. Configure the ~babel~ language module and structure templates to write diagrams in ~org-mode~ buffers.

#+begin_src emacs-lisp
(use-package plantuml-mode
  :after org
  :custom (plantuml-default-exec-mode 'jar)
          (plantuml-jar-path "~/.local/bin/plantuml.jar")
          (org-plantuml-jar-path (expand-file-name "~/.local/bin/plantuml.jar"))
          (org-startup-with-inline-images t)
  :config (add-to-list 'org-src-lang-modes '("plantuml" . plantuml))
          (add-to-list 'org-structure-template-alist '("pl" . "src plantuml"))
          (org-babel-do-load-languages 'org-babel-load-languages '((plantuml . t))))
#+end_src

* Shortcuts

Toggle inline imagines with =SPC t i=.

#+begin_src emacs-lisp
(dotfiles/leader
  "ti" '(org-toggle-inline-images :which-key "Images"))
#+end_src

* Footnotes

[fn:1] https://tutorialspoint.com/uml/uml_standard_diagrams.htm

[fn:2] https://plantuml.com

[fn:3] https://chrishayward.xyz/notes/plantuml/

[fn:4] https://github.com/skuro/plantuml-mode