mirror of
https://github.com/wxWidgets/Phoenix.git
synced 2026-01-11 14:27:09 +01:00
1257f42189
⁉️ Not sure if the generated .rst stuff is intended to have
whitespace like this in it or not, so seperating this from the other
commits, so easy to revert if necessary.
74 lines
2.0 KiB
Python
74 lines
2.0 KiB
Python
##Andrea Gavana
|
|
#!/usr/bin/env python
|
|
|
|
# This sample demonstrates a simple use of wx.Process/wx.Execute to
|
|
# monitor an external program stdout
|
|
|
|
import wx
|
|
|
|
class ProcessFrame(wx.Frame):
|
|
|
|
def __init__(self, parent):
|
|
wx.Frame.__init__(self, parent, title='Process/Execute example')
|
|
|
|
panel = wx.Panel(self)
|
|
self.label = wx.TextCtrl(panel, style=wx.TE_MULTILINE)
|
|
self.btn = wx.Button(panel, label="Start")
|
|
|
|
self.process = None
|
|
|
|
sizer = wx.BoxSizer(wx.VERTICAL)
|
|
sizer.Add(self.label, proportion=1, flag=wx.EXPAND)
|
|
sizer.Add(self.btn, proportion=0, flag=wx.EXPAND)
|
|
|
|
panel.SetSizerAndFit(sizer)
|
|
self.Bind(wx.EVT_BUTTON, self.OnButton)
|
|
|
|
self.Bind(wx.EVT_IDLE, self.OnIdle)
|
|
self.Bind(wx.EVT_END_PROCESS, self.OnProcessEnded)
|
|
|
|
def OnButton(self, event):
|
|
self.btn.Enable(False)
|
|
self.label.SetValue('')
|
|
self.LongRunning()
|
|
|
|
def LongRunning(self):
|
|
"""
|
|
This runs in the GUI thread but uses wx.Process and
|
|
wx.Execute to start and monitor a separate process.
|
|
"""
|
|
|
|
cmd = 'python -u external_program.py'
|
|
|
|
self.process = wx.Process(self)
|
|
self.process.Redirect()
|
|
|
|
wx.Execute(cmd, wx.EXEC_ASYNC, self.process)
|
|
|
|
def OnIdle(self, event):
|
|
""" This event handler catches the process stdout. """
|
|
|
|
if self.process is not None:
|
|
stream = self.process.GetInputStream()
|
|
if stream.CanRead():
|
|
text = stream.read()
|
|
self.label.AppendText(text)
|
|
|
|
def OnProcessEnded(self, event):
|
|
|
|
stream = self.process.GetInputStream()
|
|
|
|
if stream.CanRead():
|
|
text = stream.read()
|
|
self.label.AppendText(text)
|
|
|
|
self.btn.Enable(True)
|
|
self.label.AppendText('Finished')
|
|
|
|
|
|
if __name__ == "__main__":
|
|
app = wx.App(0)
|
|
frame = ProcessFrame(None)
|
|
frame.Show()
|
|
app.MainLoop()
|