Transparent Python Home applet for n900

[daperl]

6512

Here's the code (/usr/lib/hildon-desktop/hw_home_applet_c.py):

#! /usr/bin/env python

from math import pi
import cairo
import gtk
import hildondesktop

class hw_home_applet_c(hildondesktop.HomePluginItem):
'''
__gsignals__ = {
'realize' : 'override',
'expose-event' : 'override',
}
'''
def __init__(s):
hildondesktop.HomePluginItem.__init__(s)
pb = gtk.gdk.pixbuf_new_from_file('/home/user/src/demos/images/gnome-gimp.png')
i = gtk.Image()
s.set_size_request(90,90)
i.set_from_pixbuf(pb)
i.show_all()
s.add(i)

def do_expose_event(s, e):
a = e.area
cr = s.window.cairo_create()
cr.arc(a.width/2,a.height/2,a.width/2,0,2*pi)
cr.set_source_rgba(1.0,0.0,0.0,0.625)
cr.fill()
hildondesktop.HomePluginItem.do_expose_event(s,e)

def do_realize(s):
scn = s.get_screen()
cm = scn.get_rgba_colormap()
s.set_colormap(scn.get_rgba_colormap())
s.set_app_paintable(True)
hildondesktop.HomePluginItem.do_realize(s)

hd_plugin_type = hw_home_applet_c

if __name__ == '__main__':
import gobject
gobject.type_register(hd_plugin_type)
obj = gobject.new(hd_plugin_type, plugin_id='plugin_id')
obj.show_all()
gtk.main()

Here's the desktop file (/usr/share/applications/hildon-home/hw_home_applet_c.desktop):

[Desktop Entry]
Name=hw_home_applet_c
Comment=Description of the Hello World Home Applet c
Type=python
X-Path=hw_home_applet_c.py

But you're gonna have to BYOIP (Bring Your Own Image Path).

[daperl]

Oh, and don't forget to do this if you haven't already done so:

apt-get install python-hildondesktop hildon-desktop-python-loader

Further information can be found here (http://wiki.maemo.org/PyMaemo/HildonDesktop) and here (http://maemo.org/api_refs/5.0/5.0-final/libhildondesktop/HDHomePluginItem.html).

[lizardo]

Oh, and don't forget to do this if you haven't already done so:

apt-get install python-hildondesktop hildon-desktop-python-loader

You forgot to mention "python-cairo" above :)

Also see these two links:


http://lists.maemo.org/pipermail/maemo-developers/2009-December/023206.html
http://lists.maemo.org/pipermail/maemo-developers/2009-December/023207.html


For important notes when mixing python-hildondesktop and python-cairo.

[mu_mind]

I've just uploaded a project to http://gitorious.org/python-hildonhomepluginitem to ease creating semi-transparent home applets. It won't do everything yet, but I intend it to be built up it into a base for most common styles of home applets, and make the level of transparency and most of the other styling optional/selectable.

Please consider updating it to support what you want if you need a transparent applet, or file a bug for what knobs you'd like to see on it.