HT clear some wxPython fram?

[Cliff Wells]

On Wed, 03 Jul 2002 20:16:26 +0200
Klaus Reinhardt wrote:

> Am 03.07.02 20:06:07, schrieb Cliff Wells <logiplexsoftware at earthlink.net>:
> 
> >On Wed, 03 Jul 2002 19:39:04 +0200
> >Klaus Reinhardt wrote:
> >
> >> >> HOW I CAN CLEAR SOME FRAME?
> >What do you want to clear from the frame?  You've put nothing into it.  I
think
> >you are confusing the stdout window with the frame.  If you notice, when you
> >run your program, two windows open.  The first one with the title "Close me"
is
> >the frame.  The second window titled "wxPython stdout/stderr" is not the
frame.
> > I could be wrong, but I don't think there's any way to control the
> >stdout/stderr window.  It's mostly for debugging purposes.
> >
> >What you will want to do instead is something more like this:
> 
> ---------------------------------------------------------------------
> Hi
> I will try this (here cut).
> BUT: 
> 
> Aktive Verbindungen
> 
>   Proto  Lokale Adresse         Remote-Adresse            Status
>   TCP    0.0.0.0:1117           0.0.0.0:0              LISTENING
>   TCP    127.0.0.1:4711         0.0.0.0:0              LISTENING
>   TCP    217.81.119.164:1117    130.149.5.227:22       ESTABLISHED
> 
> This is shown in the "wxPython stdout/stderr"-frame.
> (I'm a completely newby to python and OOP)

What you will want to do is modify the source I sent you to display your text
rather than "hello":

    def OnTimer(self, evt):
        self.panel.write("hello") # <- change this line to display your text

Here is a modified example that adds an additional method writelines() to
MyPanel and will perhaps make it clearer:

from wxPython.wx import *
import os

class MyPanel(wxPanel):
    def __init__(self, parent):
        wxPanel.__init__(self, parent, -1)
        self.SetBackgroundColour(wxWHITE)
        self.text = []
        EVT_PAINT(self, self.OnPaint)
        
    def OnPaint(self, event):
        dc = wxPaintDC(self)
        self.draw(dc)

    def write(self, text):
        self.text.append(text)
        if len(self.text) > 10:
            del self.text[0]
        dc = wxClientDC(self)
        self.draw(dc)

    def writelines(self, lines):
        self.text = lines
        dc = wxClientDC(self)
        self.draw(dc)
        
    def draw(self, dc):
        dc.Clear()
        y = 0
        for t in self.text:
            dc.DrawText(t, 0, y)
            y += 15
    
class MyFrame(wxFrame):
    def __init__(self):
        wxFrame.__init__(self, None, -1, "MyFrame")
        self.panel = MyPanel(self)
        self.timer = wxTimer(self, -1)
        self.timer.Start(100)
        EVT_TIMER(self, -1, self.OnTimer)
        
    def OnTimer(self, evt):
        lines = os.popen('netstat -a -n','r').readlines()
        # do some filtering/formatting here
        lines = filter(lambda l: l.split()[0] == 'tcp', lines)
      	self.panel.writelines(lines)
        
    def OnClose(self,event):
        self.timer.Stop()
        self.Destroy()
        
class MyApp(wxApp):
    def OnInit(self):
        frame = MyFrame()
        frame.Show(true)
        return true


app = MyApp()
app.MainLoop()
        

-- 
Cliff Wells, Software Engineer
Logiplex Corporation (www.logiplex.net)
(503) 978-6726 x308  (800) 735-0555 x308