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kivy_ui.py
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kivy_ui.py
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from kivy.app import App
from kivy.uix.widget import Widget
from kivy.uix.button import Button
from kivy.uix.togglebutton import ToggleButton
from kivy.uix.label import Label
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.gridlayout import GridLayout
from kivy.uix.textinput import TextInput
from kivy.uix.scrollview import ScrollView
from kivy.clock import Clock
from kivy.graphics import Color, Rectangle
import packet_watcher
import packet_limiter
from kivy.config import Config
Config.set('graphics', 'width', '1000')
Config.set('graphics', 'height', '1000')
class PortInfo(BoxLayout):
def __init__(self, **kwargs):
super(PortInfo, self).__init__(**kwargs)
i = kwargs['item']
self.net_data = i
port = kwargs['port']
self.port_label = Label(text=str(port))
self.total_label = Label()
self.raw_speed_label = Label()
self.speed_label = Label()
self.add_widget(self.port_label)
self.add_widget(self.total_label)
self.add_widget(self.raw_speed_label)
self.add_widget(self.speed_label)
self.up_limit = TextInput()
self.down_limit = TextInput()
self.enable_limit = ToggleButton(text="limit?")
self.add_widget(self.up_limit)
self.add_widget(self.down_limit)
self.add_widget(self.enable_limit)
self.Blue = port & 40
self.Green = (port >> 8) & 40
self.Red = (port >> 16) & 40
with self.canvas.before:
Color(self.Red/40.0, self.Green/40.0, self.Blue/40.0, .5) # green; colors range from 0-1 not 0-255
self.rect = Rectangle(size=self.size, pos=self.pos)
self.bind(size=self._update_rect, pos=self._update_rect)
def _update_rect(self, instance, value):
self.rect.pos = instance.pos
self.rect.size = instance.size
def update(self, v):
self.net_data = v
self.speed_label.text = "{:.1f}".format(v['speed'] / 1000.0)
self.total_label.text = "{:.1f}".format(v['total'] / 1000.0)
self.raw_speed_label.text = "{:.1f}".format(v['speed_raw'] / 1000.0)
sort_key = 'speed'
class TableHeader(BoxLayout):
def __init__(self, **kwargs):
super(TableHeader, self).__init__(**kwargs)
self.port_label = Button(text="port", on_release=self.set_sort)
self.port_label.sort_key = "port"
self.total_label = Button(text="total\nkb", on_release=self.set_sort)
self.total_label.sort_key = "total"
self.raw_speed_label = Button(text="raw\nspd kb", on_release=self.set_sort)
self.raw_speed_label.sort_key = "speed_raw"
self.speed_label = Button(text="speed\nkb", on_release=self.set_sort)
self.speed_label.sort_key = "speed"
self.add_widget(self.port_label)
self.add_widget(self.total_label)
self.add_widget(self.raw_speed_label)
self.add_widget(self.speed_label)
self.up_limit_label = Label(text="up\nlimit")
self.down_limit_label = Label(text="down\nlimit")
self.enable_limit_label = Label(text="enable\nlimit")
self.add_widget(self.up_limit_label)
self.add_widget(self.down_limit_label)
self.add_widget(self.enable_limit_label)
self.size_hint_y = 0.1
def set_sort(self, obj):
global sort_key
sort_key = obj.sort_key
print sort_key
def cmp_PI(ix, iy):
x = ix.net_data[sort_key]
y = iy.net_data[sort_key]
if x > y:
return 1
elif x == y:
return 0
else: # x < y
return -1
class MainView(GridLayout):
def __init__(self, **kwargs):
kwargs['cols'] = 1
super(MainView, self).__init__(**kwargs)
self.main_table = BoxLayout(orientation='vertical')
self.main_table.add_widget(TableHeader())
self.main_list = GridLayout(cols=1, spacing=1, row_default_height= '30dp', row_force_default= True, size_hint_y=None)
self.main_list.bind(minimum_height=self.main_list.setter('height'))
self.scroll_view = ScrollView()
self.main_table.add_widget(self.scroll_view)
self.scroll_view.add_widget(self.main_list)
self.add_widget(Label(text="LinNetLim\n press apply to limit selected ports", size_hint_y=.15))
self.add_widget(self.main_table)
Clock.schedule_interval(self.update_cb, 0.5)
self.connected_widgets = {}
self.info_panel = BoxLayout(orientation='vertical', size_hint_x=.2)
clearbtn = Button(text='Apply', size_hint_y=.1)
clearbtn.bind(on_release=self.apply_limits)
self.add_widget(clearbtn)
#self.info_panel.add_widget(clearbtn)
#generate a list of ports with up/down limit and pass to the packet limiter
def apply_limits(self, obj):
indata = []
for r in self.main_list.children:
if r.enable_limit.state == 'down':
indata.append({
"port": int(r.port_label.text),
"up_limit": int(r.up_limit.text),
"down_limit": int(r.down_limit.text)
})
packet_limiter.set_from_ports_list(indata)
#read list of ports, with raw_speed, total and speed
def update_cb(self, dt):
for k in list(packet_watcher.portcounts.keys()):
v = packet_watcher.portcounts[k]
w = self.connected_widgets.get(k, None)
if not w:
w = PortInfo(port=k, item=v, height=100)
self.connected_widgets[k] = w
self.main_list.add_widget(w)
w.update(v)
self.main_list.children.sort(cmp_PI)
class NetLimitApp(App):
def build(self):
parent = MainView()
packet_watcher.start_background_thread()
self.mainwidget = parent
return parent
mainapp = NetLimitApp()
if __name__ == '__main__':
mainapp.run()