#!/usr/bin/python

# notify.py is a simple notification program displaying a message on the
# screen.

# Copyright (C) 2011-2013  Simon Ruderich
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.


import sys
import locale

import pygtk
pygtk.require('2.0') # there might be a GTK 1 version installed, ignore it
import gtk
import pango
import gobject


# Pressing the mouse inside the window quits notify.
def mouse_press_callback(widget, event):
    gtk.main_quit()


if __name__ == '__main__':
    if len(sys.argv) != 2:
        sys.stderr.write("Usage: %s <message>\n" % (sys.argv[0]))
        sys.exit(1)

    # Display configuration.
    BOLD     = True
    FG_COLOR = 'blue'
    BG_COLOR = 'yellow'

    # We need a popup so the window manager doesn't touch our window.
    window = gtk.Window(gtk.WINDOW_POPUP)
    # No window border or close/resize buttons.
    window.set_decorated(False)
    # In case set_decorated(False) doesn't work with the used window manager
    # quit when the window is manually closed.
    window.connect('delete-event', gtk.main_quit)
    # Enable mouse click events, by default windows don't receive them.
    window.add_events(gtk.gdk.BUTTON_PRESS_MASK)
    window.connect('button-press-event', mouse_press_callback)

    # Background color.
    window.modify_bg(gtk.STATE_NORMAL, gtk.gdk.color_parse(BG_COLOR))

    string = sys.argv[1].decode(locale.getdefaultlocale()[1])

    # Colored message string.
    label_message = gtk.Label(string)
    label_message.modify_fg(gtk.STATE_NORMAL, gtk.gdk.color_parse(FG_COLOR))
    window.add(label_message)

    if BOLD:
        attributes = pango.AttrList()
        attributes.insert(pango.AttrWeight(pango.WEIGHT_HEAVY, end_index=-1))
        label_message.set_attributes(attributes)

    # Display at the top at full screen width.
    screen = window.get_screen()
    window.resize(screen.get_width(), 30)
    window.move(0, 15)

    window.show_all()
    gtk.main()