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Processing 2 major-mode for Emacs
Emacs Lisp
branch: master

README.md

Emacs major-mode for Processing 2.0

MELPA

Based on Rudolf Olah's version and modification by Bunny Blake.

https://github.com/emacsmirror/processing-mode

https://gist.github.com/4083326

The snippets are taken from Sublime Text 2's Processing plugin and converted to yasnippet snippets.

Installation

The easiest way is to install the ELPA package from MELPA with M-x package-install RET processing-mode. All dependencies are automatically installed.

Manual installation

To install processing-mode manually, clone the repository:

git clone https://github.com/ptrv/processing2-emacs

In your .emacs file, add this:

(add-to-list 'load-path "/path/to/processing2-emacs/")
(autoload 'processing-mode "processing-mode" "Processing mode" t)
(add-to-list 'auto-mode-alist '("\\.pde$" . processing-mode))

Add the following to set up processing snippets for yasnippet:

(autoload 'processing-snippets-initialize "processing-snippets" nil nil nil)
(eval-after-load 'yasnippet '(processing-snippets-initialize))

Configuration

Set variables in .emacs or with customize-group RET processing RET (this works only after processing-mode has been loaded):

(setq processing-location "/path/to/processing-java")
(setq processing-application-dir "/path/to/processing-application-dir")
(setq processing-sketchbook-dir "/path/to/processing-sketchbook-dir")

For example, on Mac the default settings are the following:

(setq processing-location "/usr/bin/processing-java")
(setq processing-application-dir "/Applications/Processing.app")
(setq processing-sketchbook-dir "~/Documents/Processing")

Usually when you run a processing sketch, the build files are generated in a sub-directory called output in the current sketch directory. It is also possible to set the processing-output-dir to another directory:

(setq processing-output-dir "/tmp")

Optionally it is also possible to set up basic Auto-Complete support to have keyword completion.

(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 (append processing-functions
                                   processing-builtins
                                   processing-constants)))

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

Usage

The key-bindings are:

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.
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