I'm looking to try and develop some simple indicators, for numlock/capslock and brigthness, etc. How would I go about creating indicators in python? Are there any tutorials that walk me through writing my first appindicator (like for apps in quickly)? Any easy solutions for starting like quickly templates?
I think Writing indicators with Python, GIR and GTK3 ,as mentioned by @fossfreedom, covers how create indicators for Unity. (Read that 1st)
I'm using Ubuntu 14.04, Quickly 12.08.1 . This is demo for a complete working example build from a Quickly template.
OP wants just indicator (not complete GUI app) so let's start with ubuntu-cli Quickly template:
quickly create ubuntu-cli indicator-demo
It may raise an error message for unreleased bug fix (bug#1064110) in this template:
Creating project directory indicator-demo Creating bzr repository and committing Launching your newly created project! Traceback (most recent call last): ... OSError: [Errno 13] Permission denied ERROR: create command failed Aborting
cd indicator-demo/ chmod +x bin/indicator-demo
$ quickly run I'm launched and my args are:
There is a nice PYGI example from Ubuntu Wiki: Application Indicators. It should be easy to integrate it.
Open for edit:
__init__.py, add need modules imports:
from gi.repository import Gtk from gi.repository import AppIndicator3 as appindicator
print _("I'm launched and my args are: %s") % (" ".join(args)) logging.debug(_('end of prog'))
ind = appindicator.Indicator.new_with_path ( _("Indicator demo for Quickly"), "indicator-demo-icon-normal", appindicator.IndicatorCategory.APPLICATION_STATUS, indicator_democonfig.get_data_path()) ind.set_status (appindicator.IndicatorStatus.ACTIVE) ind.set_attention_icon ("indicator-demo-icon-attention") # create a menu menu = Gtk.Menu() # create one item menu_items = Gtk.MenuItem(_("Quit")) menu.append(menu_items) # this is where you would connect your menu item up with a function: menu_items.connect("activate", Gtk.main_quit ) # show the item menu_items.show() ind.set_menu(menu) Gtk.main()
Add icons to a newly created data folder:
I copied some icons from installed packages, just to make the example:
cp /usr/share/icons/ubuntu-mono-dark/status/22/indicator-messages.svg data/indicator-demo-icon-normal.svg cp /usr/share/icons/ubuntu-mono-dark/status/22/indicator-messages-new.svg data/indicator-demo-icon-attention.svg
Create package and publish it:
quickly package quickly share --ppa your-ppa
Well, I didn't update debian package control file, But the dependencies have been auto added to the generated DEB:
Package: indicator-demo Version: 0.1 Architecture: all Maintainer: UNKNOWN <UNKNOWN> Installed-Size: 57 Depends: python (>= 2.7), python (<< 2.8), python:any (>= 2.7.1-0ubuntu2), gir1.2-gtk-3.0, gir1.2-appindicator3-0.1 Section: python Priority: extra Description: UNKNOWN UNKNOWN
Also, the previously added icons in data folder were included in the package.
I faced a similar case before, How to add a keyboard modifier state applet to Unity panel?. The answer contains an example/prototype keyboard indicator using libappindicator (But in the c programming language).
libappindicator lacks an important feature which make easy to ports other desktops indicators. Icon can be loaded only from path. See Bug #812067 API needed: pixbuf icon setting support
The complete API reference for libappindicator is available as HTML in the
libappindicator-docpackage. Look in
Notice that it supports adding label a beside indicator icon.
- Ubuntu Wiki: Application Indicators
- Ubuntu Wiki: Quickly
This link will teach you to create a basic new mail indicator in python+unity, which works with GMail. This will give you a solid grounding in the basic structure of an applet while providing a real-world (albeit simplistic) example that you can easily extend.
It's go through the final script piece by piece.
This is another python program with comments in code, made using