sugar-toolkit-gtk3/shell/console/logviewer.py

#!/usr/bin/python

# Copyright (C) 2006, Red Hat, Inc.
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

import os

import pygtk
pygtk.require('2.0')
import gtk
import gobject

from sugar import env

class LogBuffer(gtk.TextBuffer):
    def __init__(self, logfile):
        gtk.TextBuffer.__init__(self)

        self._logfile = logfile
        self._pos = 0

        self.update()

    def update(self):
        f = open(self._logfile, 'r')

        f.seek(self._pos)
        self.insert(self.get_end_iter(), f.read())
        self._pos = f.tell()

        f.close()

        return True

class LogView(gtk.ScrolledWindow):
    def __init__(self, model):
        gtk.ScrolledWindow.__init__(self)

        self.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)

        textview = gtk.TextView(model)
        textview.set_wrap_mode(gtk.WRAP_WORD)
        textview.set_editable(False)

        self.add(textview)
        textview.show()

class MultiLogView(gtk.Notebook):
    def __init__(self, path):
        gtk.Notebook.__init__(self)

        self._logs_path = path
        self._pages = {}

        self._update()

        gobject.timeout_add(1000, self._update)

    def _add_page(self, logfile):
        full_log_path = os.path.join(self._logs_path, logfile)
        model = LogBuffer(full_log_path)

        view = LogView(model)
        self.append_page(view, gtk.Label(logfile))
        view.show()

        self._pages[logfile] = model

    def _update(self):
        if not os.path.isdir(self._logs_path):
            return True

        for logfile in os.listdir(self._logs_path):
            if self._pages.has_key(logfile):
                self._pages[logfile].update()
            else:
                self._add_page(logfile)

        return True

class Interface:

    def __init__(self):
        path = os.path.join(env.get_profile_path(), 'logs')
        viewer = MultiLogView(path)
        viewer.show()
        self.widget = viewer