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# window.py
#
# Copyright 2019 Evangelos Rigas
#
# 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 os
import sys
import dbus
from gi.repository import Gtk
BUS = dbus.SystemBus()
SESSION = BUS.get_object(
"org.rnd2.cpupower_gui.helper", "/org/rnd2/cpupower_gui/helper"
)
HELPER = dbus.Interface(SESSION, "org.rnd2.cpupower_gui.helper")
def dialog_response(widget, response_id):
""" Error message dialog """
# if the button clicked gives response OK (-5)
if response_id == Gtk.ResponseType.OK:
print("OK")
# if the messagedialog is destroyed (by pressing ESC)
elif response_id == Gtk.ResponseType.DELETE_EVENT:
print("dialog closed or cancelled")
widget.destroy()
def error_message(msg, transient):
message = Gtk.MessageDialog(type=Gtk.MessageType.ERROR, buttons=Gtk.ButtonsType.OK)
message.set_markup(msg)
message.set_transient_for(transient)
message.show()
message.connect("response", dialog_response)
@Gtk.Template(resource_path='/org/rnd2/cpupower_gui/window.glade')
class CpupowerGuiWindow(Gtk.ApplicationWindow):
__gtype_name__ = 'CpupowerGuiWindow'
cpu_box = Gtk.Template.Child()
status = Gtk.Template.Child()
gov_box = Gtk.Template.Child()
adj_min = Gtk.Template.Child()
adj_max = Gtk.Template.Child()
apply_btn = Gtk.Template.Child()
toall = Gtk.Template.Child()
about_dialog = Gtk.Template.Child()
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.update_cpubox()
self._read_settings(self._get_active_cpu())
self.upd_sliders()
self.status_icon = self.status
self.status_icon.connect("popup-menu", self.right_click_event)
self.status_icon.connect("activate", self.status_activate)
def update_cpubox(self):
self.cpu_store = Gtk.ListStore(int)
for cpu in self.online_cpus:
self.cpu_store.append([cpu])
self.cpu_box.set_model(self.cpu_store)
self.cpu_box.set_active(0)
def right_click_event(self, icon, button, time):
"""Handler for right click action on status icon """
self.menu = Gtk.Menu()
about = Gtk.MenuItem()
about.set_label("About")
about.connect("activate", self.on_about_clicked)
self.menu.append(about)
quit = Gtk.MenuItem()
quit.set_label("Quit")
quit.connect("activate", self.quit)
self.menu.append(quit)
self.menu.show_all()
self.menu.popup(None, None, None, self.status_icon, button, time)
def status_activate(self, status_icon):
"""Open window from status icon """
self.window.deiconify()
self.window.present()
def quit(self, *args):
"""Quit """
# HELPER.quit()
exit(0)
def _get_active_cpu(self):
iter = self.cpu_box.get_active_iter()
if iter is not None:
return int(self.cpu_store[iter][0])
self.update_cpubox()
return 0
def upd_sliders(self):
""" Updates the slider widgets by reading the sys files"""
cpu = self._get_active_cpu()
self._read_settings(cpu)
freq_min, freq_max = HELPER.get_cpu_frequencies(cpu)
gov_store = Gtk.ListStore(str, int)
for gov in self.governors.items():
if gov[1] == self.governor:
gov_id = gov[0]
gov_store.append([gov[1].capitalize(), gov[0]])
self.gov_box.set_model(gov_store)
self.gov_box.set_active(gov_id)
self.adj_min.set_lower(int(self.freq_min_hw / 1000))
self.adj_min.set_upper(int(self.freq_max_hw / 1000))
self.adj_max.set_lower(int(self.freq_min_hw / 1000))
self.adj_max.set_upper(int(self.freq_max_hw / 1000))
self.adj_min.set_value(int(freq_min / 1000))
self.adj_max.set_value(int(freq_max / 1000))
self.apply_btn.set_sensitive(False)
@Gtk.Template.Callback()
def on_cpu_changed(self, *args):
""" Callback for cpu box """
# pylint: disable=W0612,W0613
self.upd_sliders()
@Gtk.Template.Callback()
def on_toall_state_set(self, _, val):
""" Enable/Disable cpu_box """
if val:
self.cpu_box.set_sensitive(False)
else:
self.cpu_box.set_sensitive(True)
@Gtk.Template.Callback()
def on_atboot_state_set(self, _, val):
if val:
self.ATBOOT = True
print(HELPER.isauthorized())
else:
self.ATBOOT = False
@Gtk.Template.Callback()
def on_adj_min_value_changed(self, *args):
""" Callback for adj_min """
# pylint: disable=W0612,W0613
if self.adj_min.get_value() > self.adj_max.get_value():
if self.adj_min.get_value() + 10 > self.freq_max_hw / 1000:
self.adj_max.set_value(self.freq_max_hw / 1000)
else:
self.adj_max.set_value(self.adj_min.get_value() + 10)
elif self.adj_max.get_value() < self.adj_min.get_value():
if self.adj_max.get_value() - 10 < self.freq_min_hw / 1000:
self.adj_min.set_value(self.freq_min_hw / 1000)
else:
self.adj_min.set_value(self.adj_max.get_value() - 10)
self.apply_btn.set_sensitive(True)
@Gtk.Template.Callback()
def on_adj_max_value_changed(self, *args):
""" Callback for adj_max """
# pylint: disable=W0612,W0613
if self.adj_max.get_value() < self.adj_min.get_value():
self.adj_min.set_value(self.adj_max.get_value() - 10)
self.apply_btn.set_sensitive(True)
@Gtk.Template.Callback()
def on_governor_changed(self, *args):
""" Change governor and enable apply_btn """
# pylint: disable=W0612,W0613
mod = self.gov_box.get_model()
text, tid = mod[self.gov_box.get_active_iter()][:2]
self.governor = self.governors[tid]
self.apply_btn.set_sensitive(True)
@Gtk.Template.Callback()
def on_apply_clicked(self, button):
""" Write changes back to sysfs """
fmin = int(self.adj_min.get_value() * 1000)
fmax = int(self.adj_max.get_value() * 1000)
cpu = self._get_active_cpu()
ret = -1
if HELPER.isauthorized():
if self.toall.get_active():
for i in self.online_cpus:
ret = HELPER.update_cpu_settings(i, fmin, fmax, self.governor)
else:
if self.is_online(cpu):
ret = HELPER.update_cpu_settings(cpu, fmin, fmax, self.governor)
else:
error_message("The CPU you selected is not online.", self.window)
self.update_cpubox()
return
if ret == 0:
button.set_sensitive(False)
else:
error_message(
"Error occurred, check if you have permissions.", self.window
)
else:
error_message(
"You don't have permissions to update cpu settings!", self.window
)
@Gtk.Template.Callback()
def on_about_clicked(self, button):
self.show_about_dialog()
def show_about_dialog(self):
self.about_dialog.run()
self.about_dialog.hide()
@Gtk.Template.Callback()
def on_config_box_changed(self, button):
self.about_dialog.hide()
def _read_settings(self, cpu):
if self.is_online(cpu):
self.freq_min_hw, self.freq_max_hw = HELPER.get_cpu_limits(cpu)
self.governor = HELPER.get_cpu_governor(cpu)
self.governors = {}
for i, gov in enumerate(HELPER.get_cpu_governors(cpu)):
self.governors[i] = gov
else:
error_message("The CPU you selected is not online.", self.window)
self.update_cpubox()
self._read_settings(self._get_active_cpu())
@property
def online_cpus(self):
return HELPER.get_cpus_available()
@staticmethod
def is_online(cpu):
online = HELPER.get_cpus_online()
present = HELPER.get_cpus_present()
return (cpu in present) and (cpu in online)
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