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dotfiles/modules/capture.org

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Capture

Capturing images, screencasts, screenshots or live-streaming. It's defined in this file.

Slides

Produce high quality presentations that work anywhere with HTML/JS and the Reveal.js1 package. Achieve this behaviour in Emacs with Ox-reveal2], configured to use a cdn allows us to produce ones that are not dependent on a local version. An important caveat here is that paths to images must be absolute URLs.

(use-package ox-reveal
  :after ox
  :custom (org-reveal-root "https://cdn.jsdelivr.net/npm/reveal.js"))

Create a capture template for creating slides quickly, with our desired configuration.

(with-eval-after-load 'org-roam
  (add-to-list 'org-roam-capture-templates
               '("s" "Slides" plain (function org-roam-capture--get-point)
                 "%?"
                 :file-name "docs/slides/${slug}"
                 :unnarrowed t
                 :head
"
,#+TITLE: ${title}
,#+AUTHOR: Christopher James Hayward
,#+EMAIL: chris@chrishayward.xyz

,#+REVEAL_ROOT: https://cdn.jsdelivr.net/npm/reveal.js
,#+REVEAL_THEME: serif

,#+EXPORT_FILE_NAME: ${slug}

,#+OPTIONS: reveal_title_slide:nil
,#+OPTIONS: num:nil toc:nil todo:nil tasks:nil tags:nil
,#+OPTIONS: skip:nil author:nil email:nil creator:nil timestamp:nil
")))

Screens

Download screenshot.el3 for taking screenshots of highlighted regions or entire buffers.

(straight-use-package 
  '(screenshot 
    :type git 
    :host github 
    :repo "tecosaur/screenshot"))

Create screencasts with one-frame-per-action GIF recording via Emacs gif screencast4.

  • Pause / Resume

  • High Quality

  • Optimized

It requires the installation of scrot, gifsicle, and convert from the ImageMagick library.

(use-package gif-screencast
  :commands (gif-screencast-start-or-stop gif-screencast-toggle-pause)
  :custom (gif-screencast-output-directory (concat dotfiles/home "docs/images/")))

  • Place keybindings for capturing the screen behind SPC s.

    • Screenshot with s

    • Screencast with c

(dotfiles/leader
  "s" '(:ignore t :which-key "Screen")
  "ss" '(screenshot :which-key "Screenshot")
  "sc" '(gif-screencast-start-or-stop :which-key "Screencast"))

Resources