svkill.py :  » Language-Interface » ChinesePython » chinesepython2.1.3-0.4 » Demo » tkinter » guido » Python Open Source

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Python Open Source » Language Interface » ChinesePython 
ChinesePython » chinesepython2.1.3 0.4 » Demo » tkinter » guido » svkill.py
#! /usr/bin/env python

# Tkinter interface to SYSV `ps' and `kill' commands.

from Tkinter import *

if TkVersion < 4.0:
  raise ImportError, "This version of svkill requires Tk 4.0 or later"

from string import splitfields
from string import split
import commands
import os

user = os.environ['LOGNAME']

class BarButton(Menubutton):
  def __init__(self, master=None, **cnf):
    apply(Menubutton.__init__, (self, master), cnf)
    self.pack(side=LEFT)
    self.menu = Menu(self, name='menu')
    self['menu'] = self.menu    

class Kill(Frame):
  # List of (name, option, pid_column)
  view_list = [
    ('Default', ''),
    ('Every (-e)', '-e'),
    ('Non process group leaders (-d)', '-d'),
    ('Non leaders with tty (-a)', '-a'),
    ('For this user (-u %s)' % user, '-u %s' % user),
    ]
  format_list = [
    ('Default', '', 0),
    ('Long (-l)', '-l', 3),
    ('Full (-f)', '-f', 1),
    ('Full Long (-f -l)', '-l -f', 3),
    ('Session and group ID (-j)', '-j', 0),
    ('Scheduler properties (-c)', '-c', 0),
    ]
  def kill(self, selected):
    c = self.format_list[self.format.get()][2]
    pid = split(selected)[c]
    os.system('kill -9 ' + pid)
    self.do_update()
  def do_update(self):
    format = self.format_list[self.format.get()][1]
    view = self.view_list[self.view.get()][1]
    s = commands.getoutput('ps %s %s' % (view, format))
    list = splitfields(s, '\n')
    self.header.set(list[0] + '          ')
    del list[0]
    self.frame.list.delete(0, AtEnd())
    for line in list:
      self.frame.list.insert(0, line)
  def do_motion(self, e):
    e.widget.select_clear('0', 'end')
    e.widget.select_set(e.widget.nearest(e.y))
  def do_leave(self, e):
    e.widget.select_clear('0', 'end')
  def do_1(self, e):
    self.kill(e.widget.get(e.widget.nearest(e.y)))
  def __init__(self, master=None, **cnf):
    apply(Frame.__init__, (self, master), cnf)
    self.pack(expand=1, fill=BOTH)
    self.bar = Frame(self, name='bar', relief=RAISED,
         borderwidth=2)
    self.bar.pack(fill=X)
    self.bar.file = BarButton(self.bar, text='File')
    self.bar.file.menu.add_command(
      label='Quit', command=self.quit)
    self.bar.view = BarButton(self.bar, text='View')
    self.bar.format = BarButton(self.bar, text='Format')
    self.view = IntVar(self)
    self.view.set(0)
    self.format = IntVar(self)
    self.format.set(0)
    for num in range(len(self.view_list)):
      label, option = self.view_list[num]
      self.bar.view.menu.add_radiobutton(
        label=label,
        command=self.do_update,
        variable=self.view,
        value=num)
    for num in range(len(self.format_list)):
      label, option, col = self.format_list[num]
      self.bar.format.menu.add_radiobutton(
        label=label,
        command=self.do_update,
        variable=self.format,
        value=num)
    self.bar.tk_menuBar(self.bar.file,
            self.bar.view,
            self.bar.format)
    self.frame = Frame(self, relief=RAISED, borderwidth=2)
    self.frame.pack(expand=1, fill=BOTH)
    self.header = StringVar(self)
    self.frame.label = Label(
      self.frame, relief=FLAT, anchor=NW, borderwidth=0,
      font='*-Courier-Bold-R-Normal-*-120-*',
      textvariable=self.header)
    self.frame.label.pack(fill=Y, anchor=W)
    self.frame.vscroll = Scrollbar(self.frame, orient=VERTICAL)
    self.frame.list = Listbox(
      self.frame, 
      relief=SUNKEN,
      font='*-Courier-Medium-R-Normal-*-120-*',
      width=40, height=10,
      selectbackground='#eed5b7',
      selectborderwidth=0,
      selectmode=BROWSE,
      yscroll=self.frame.vscroll.set)
    self.frame.vscroll['command'] = self.frame.list.yview
    self.frame.vscroll.pack(side=RIGHT, fill=Y)
    self.frame.list.pack(expand=1, fill=BOTH)
    self.update = Button(self, text='Update',
             command=self.do_update)
    self.update.pack(fill=X)
    self.frame.list.bind('<Motion>', self.do_motion)
    self.frame.list.bind('<Leave>', self.do_leave)
    self.frame.list.bind('<1>', self.do_1)
    self.do_update()

if __name__ == '__main__':
  kill = Kill(None, borderwidth=5)
  kill.winfo_toplevel().title('Tkinter Process Killer (SYSV)')
  kill.winfo_toplevel().minsize(1, 1)
  kill.mainloop()
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