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# -*- coding: utf-8; mode: python; -*-
#
# GStreamer Inspector - Multimedia system plugin introspection
#
# Copyright (C) 2007 René Stadler <mail@renestadler.de>
#
# 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/>.
"""GStreamer Inspector GUI.app module."""
import os
import logging
import gtk
from GstInspector import Data, main
from GstInspector.GUI.actions import Actions
from GstInspector.GUI.filters import FilterManager
from GstInspector.GUI.models import ElementModel
from GstInspector.GUI.state import InspectorAppState
from GstInspector.GUI.utils import UIFactory, WidgetFactory
from GstInspector.GUI.window import InspectorWindow
class InspectorApp (Data.Consumer):
def __init__ (self):
self.logger = logging.getLogger ("app")
self.windows = []
self.state = InspectorAppState ()
self.element_model = ElementModel ()
ui_filter_classes = FilterManager.iter_item_classes ()
model_factories = set ((cls.get_model_factory ()
for cls in ui_filter_classes))
if None in model_factories:
model_factories.remove (None)
self.data_producer = Data.Producer (Data.GSourceDispatcher (),
Data.Policy (long_running = True))
self.data_producer.consumers += model_factories
self.data_producer.consumers += [self.element_model, self]
gtk.window_set_default_icon_name ("gst-inspector")
# Keep startup notification spinning until we have filled the view.
gtk.window_set_auto_startup_notification (False)
menu_group = gtk.ActionGroup ("MenuActions")
menu_group.add_actions ([("FileMenuAction", None, _("_File")),
("ViewMenuAction", None, _("_View")),
("ViewColumnsMenuAction", None, _("_Columns")),
("HelpMenuAction", None, _("_Help")),
("NameValueContextMenuAction", None, "")])
self.actions = Actions ()
self.actions.add_group (menu_group)
self.widget_factory = WidgetFactory (main.Paths.data_dir)
ui_filename = os.path.join (main.Paths.data_dir, "menus.ui")
self.ui_factory = UIFactory (ui_filename, self.actions)
self.new_window ()
def handle_load_started_after (self):
self.logger.info ("data load has started")
def handle_data_error (self, error):
"""Data.Consumer method."""
if error.exc_type_name == ImportError.__name__:
raise ImportError (error.error)
else:
import sys
print >> sys.stderr, "Exception in child process:"
print >> sys.stderr, error.traceback,
raise RuntimeError ("error from child process: %s"
% (error.error,))
def handle_load_finished (self):
"""Data.Consumer method."""
gtk.gdk.notify_startup_complete ()
self.logger.info ("data load has finished")
def new_window (self):
window = InspectorWindow (self)
self.logger.info ("created new window (%i)", window.count)
self.data_producer.consumers.append (window)
self.windows.append (window)
self.logger.debug ("window list is now %r", self.windows)
action = window.actions.new_window
handler = self.handle_new_window_action_activate
action.connect ("activate", handler)
action = window.actions.reload_data
handler = self.handle_reload_data_action_activate
action.connect ("activate", handler)
def close_window (self, window):
try:
window.detach ()
finally:
self.state.save ()
self.logger.info ("window (%i) closed", window.count)
self.data_producer.consumers.remove (window)
self.windows.remove (window)
if self.windows:
self.logger.debug ("window list is now %r", self.windows)
if not self.windows:
self.logger.info ("last window closed, exiting main loop")
self.state.save (now = True)
gtk.main_quit ()
def update_data (self):
"""Trigger a refresh of all introspection data."""
self.logger.info ("reloading data")
policy = Data.Policy (update = True)
self.data_producer.policy.modify (policy)
self.data_producer.start ()
def handle_new_window_action_activate (self, action):
self.new_window ()
def handle_reload_data_action_activate (self, action):
self.update_data ()
def run (self):
try:
self.data_producer.start ()
main_loop_wrapper = main.MainLoopWrapper (enterfunc = gtk.main,
exitfunc = gtk.main_quit)
main_loop_wrapper.run ()
finally:
gtk.gdk.notify_startup_complete ()
from gettext import gettext as _
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