Processing 2 with Emacs

processing2withEmacs

install Processing (Mac) version 2.0b9

install processing-emacs
  $ cd ~/.emacs.d/vendor
  $ git clone https://github.com/ptrv/processing2-emacs.git

install processing-java command line utility
- Open Processing.app
- Tools > Install "processing-java"

there's a bug in the Processing 2.0b9 version of /usr/bin/processing-java that can be fixed by looking at this post:
http://forum.processing.org/topic/processing-2-0b9-processing-java-can-t-find-org-eclipse-jdi-bootstrap

silence yasnippet
- edit your ~/.emacs.d/vendor/processing2-emacs/processing-mode.el
- find the following section and comment it out, unless you want yasnippet
;;;###autoload
;; (eval-after-load 'yasnippet
;;   '(processing-snippets-initialize))

configure your Emacs init.el
- update ~/.emacs.d/init.el with this
;; From: https://github.com/ptrv/processing2-emacs
(add-to-list 'load-path "~/.emacs.d/vendor/processing2-emacs/")
(autoload 'processing-mode "processing-mode" "Processing mode" t)
(add-to-list 'auto-mode-alist '("\\.pde$" . processing-mode))
(setq processing-location "/usr/bin/processing-java")
(setq processing-application-dir "/Applications/Processing.app")
(setq processing-sketch-dir "~/Documents/Processing")

(defun processing-mode-init ()
  (make-local-variable 'ac-sources)
  (setq ac-sources '(ac-source-dictionary ac-source-yasnippet))
  (make-local-variable 'ac-user-dictionary)
  (setq ac-user-dictionary processing-functions)
  (setq ac-user-dictionary (append ac-user-dictionary processing-builtins))
  (setq ac-user-dictionary (append ac-user-dictionary processing-constants)))

(add-to-list 'ac-modes 'processing-mode)
(add-hook 'processing-mode-hook 'processing-mode-init)

;; C-c C-p r    Run a sketch.
;; C-c C-p b    Compile a sketch into .class files.
;; C-c C-p p    Run a sketch full screen.
;; C-c C-p e    Export sketch.
;; C-c C-p d    Find in reference.
;; C-c C-p f    Find or create sketch.
;; C-c C-p s    Search in Processing forum.