stdgui.py

这是用python语言写的一个数字广播的信号处理工具包。利用它

#
# Copyright 2004 Free Software Foundation, Inc.
# 
# This file is part of GNU Radio
# 
# GNU Radio 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, or (at your option)
# any later version.
# 
# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
# 

'''A simple wx gui for GNU Radio applications'''

import wx
import sys
from gnuradio import gr


class stdapp (wx.App):
    def __init__ (self, flow_graph_maker, title="GNU Radio", nstatus=2):
        self.flow_graph_maker = flow_graph_maker
        self.title = title
        self._nstatus = nstatus
        # All our initialization must come before calling wx.App.__init__.
        # OnInit is called from somewhere in the guts of __init__.
        wx.App.__init__ (self, redirect=False)

    def OnInit (self):
        frame = stdframe (self.flow_graph_maker, self.title, self._nstatus)
        frame.Show (True)
        self.SetTopWindow (frame)
        return True


class stdframe (wx.Frame):
    def __init__ (self, flow_graph_maker, title="GNU Radio", nstatus=2):
        # print "stdframe.__init__"
        wx.Frame.__init__(self, None, -1, title)

        self.CreateStatusBar (nstatus)
        mainmenu = wx.MenuBar ()

        menu = wx.Menu ()
        item = menu.Append (200, 'E&xit', 'Exit')
        self.Bind (wx.EVT_MENU, self.OnCloseWindow, item)
        mainmenu.Append (menu, "&File")
        self.SetMenuBar (mainmenu)

        self.Bind (wx.EVT_CLOSE, self.OnCloseWindow)
        self.panel = stdpanel (self, self, flow_graph_maker)
        vbox = wx.BoxSizer(wx.VERTICAL)
        vbox.Add(self.panel, 1, wx.EXPAND)
        self.SetSizer(vbox)
        self.SetAutoLayout(True)
        vbox.Fit(self)

    def OnCloseWindow (self, event):
        self.flow_graph().stop()
        self.Destroy ()

    def flow_graph (self):
        return self.panel.fg
    
class stdpanel (wx.Panel):
    def __init__ (self, parent, frame, flow_graph_maker):
        # print "stdpanel.__init__"
        wx.Panel.__init__ (self, parent, -1)
        self.frame = frame

        vbox = wx.BoxSizer (wx.VERTICAL)
        self.fg = flow_graph_maker (frame, self, vbox, sys.argv)
        self.SetSizer (vbox)
        self.SetAutoLayout (True)
        vbox.Fit (self)

        self.fg.start ()

class gui_flow_graph (gr.flow_graph):
    def __init__ (self, *ignore):
        gr.flow_graph.__init__ (self)