Arcadia Ruby Ide

version 0.2.0

by Antonio Galeone on Oct 25, 2007


Arcadia is a Integrated Development Environment (IDE) for Ruby language written in Ruby using the classic tcl/tk GUI toolkit.

Some of Arcadia ruby ide project features include:

  • Editor with source browsing, syntax highlighting, code completion

  • Debugging support

  • Contextual ruby documentation

  • Working on any platform where ruby and tcl-tk work.

  • Highly extensibility architecture.

In this release

  • mod

    extension architecture changes

  • fix


  • new

    added “search in files” features (in Search menu item)

How to install

There are two way:

  1. exec as root on command line “gem install arcadia” or as user “sudo gem install arcadia”

  2. using archive distribution

    1. untar (on unix) (tar -xzf) arcadia-<version>.tar.gz

    2. unzip (on windows) arcadia-<version>.zip

How to run

  • exec on command line “ruby arcadia.rb”

Short User guide

As you can see the application layout is splitted in vertical and horizontal resizing frames. Clicking on vertical splitter appear two button for left or right one shot frame close. The horizontal splitter has two little button for the same reason (perhaps i will conform them to the vertical style). Every frame has a title and a button to expand or resizing it. In this beta release there are very essential feature:

Main Toolbar

The toolbar button are in order:

  • new, open, save (relatively to edit operation)

  • run current, run last (for execute the raised file in the editor or the last runned file)

  • debug current, debug last, quit debug panel (for debug need)

  • show rad palette (for tk rad need)

  • quit (to exit from arcadia)


Editor use the notebook metaphor. Same command are on the popup menu that is raised on “Button-3” click event fundamentalally for closing the tab under the mouse pointer. These are same editor short-cut:

  • Ctrl-c => copy selected text

  • Ctrl-v => paste copied text

  • Ctrl-x => cut selected text

  • Ctrl-z => undo

  • Ctrl-f => copy the selected text on input combobox of find dialog and moves focus

  • Ctrl-s => save

  • Ctrl-space => completion code

  • Ctrl-shift-i => indent the selected block

  • Ctrl-shift-u => unindent the selected block

  • Ctrl-shift-c => comment/uncomment the selected code block

  • F5 => execute the file

  • F3 => find/ find next

  • F1 => contextual ruby documentation (called from editor or from code completion item)

  • Double-Click on line number set or unset a debug breakpoint

File history

The last used files are organizing in tree so you can reopen them or there

directory by clicking on the tree node.

Rad Palette

It contain the wrapper components for the tk gui building. It is in very unstabled and incomplete state. The first component is a TkTopLevel wrapper, when you click on it a new form is created and a Object inspector appears. The other components must be first selected and then created by clicking on container widget. The so created widgets has a popup menu for deleting them or in the toplevel case to switch to a code view. On the palette there are also two button, one for deselect and other for copy from the selected created widget. The copy action copy also the code into the clipboard, so you can copy the code rapresenting the gui into the embedded editor or into external editor.

Rad Object Inspector

It is for modify the widget property at runtime


It is created when a debug session init. The debug button are: Step Next, Step Into, Step Over, Resume and quit. The debug frame show the local, instance and global variables for each step.


Same Arcadia properties are locally configurabled by editing the file arcadia.conf under ~/.arcadia directory. The format of property definition are: <OPERATING SYSTEM IDENTIFY::>PROPERTY_NAME=PROPERTY_VALUE


I include into distribution also the BWidget lib (under tcl directory) so are require realy only the standard tcl tk lib (tested on tcl tk 8.4). I have tested arcadia with ruby 1.8.4, 1.8.5, 1.8.6 on

  • FreeBsd6.x,

  • Vector linux 5.8,

  • Windows 2000/XP,

  • Cygwin (note: same page fault error on dll under cygwin may be solved in this way: by ash.exe exec “/bin/rebaseall”).

If you will test arcadia on other operating system sends me an e-mail.

Developers information

Soon i will write samething about the arcadia software architecture (when it is more stable) in order to allow extensions writing and collaborations.


Arcadia is released under the Ruby License


For questions: For bugs, support request, features request