64dfb023eb
true/false or TRUE/FALSE to prepare for the new boolean type and constants being added to Python. Added code to wx.py to test for the existence of the new constants and to create suitable values if not present. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@19335 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
155 lines
4.6 KiB
Python
155 lines
4.6 KiB
Python
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from wxPython.wx import *
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#----------------------------------------------------------------------
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class TestPanel(wxPanel):
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def __init__(self, parent, ID, log):
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wxPanel.__init__(self, parent, ID)
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self.log = log
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self.process = None
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EVT_IDLE(self, self.OnIdle)
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# We can either derive from wxProcess and override OnTerminate
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# or we can let wxProcess send this window an event that is
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# caught in the normal way...
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EVT_END_PROCESS(self, -1, self.OnProcessEnded)
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# Make the controls
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prompt = wxStaticText(self, -1, 'Command line:')
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self.cmd = wxTextCtrl(self, -1, 'python -u data/echo.py')
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self.exBtn = wxButton(self, -1, 'Execute')
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self.out = wxTextCtrl(self, -1, '', style=wxTE_MULTILINE|wxTE_READONLY)
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self.inp = wxTextCtrl(self, -1, '', style=wxTE_PROCESS_ENTER)
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self.sndBtn = wxButton(self, -1, 'Send')
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self.termBtn = wxButton(self, -1, 'Close Stream')
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self.inp.Enable(False)
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self.sndBtn.Enable(False)
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self.termBtn.Enable(False)
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# Hook up the events
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EVT_BUTTON(self, self.exBtn.GetId(), self.OnExecuteBtn)
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EVT_BUTTON(self, self.sndBtn.GetId(), self.OnSendText)
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EVT_BUTTON(self, self.termBtn.GetId(), self.OnCloseStream)
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EVT_TEXT_ENTER(self, self.inp.GetId(), self.OnSendText)
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# Do the layout
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box1 = wxBoxSizer(wxHORIZONTAL)
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box1.Add(prompt, 0, wxALIGN_CENTER)
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box1.Add(self.cmd, 1, wxALIGN_CENTER|wxLEFT|wxRIGHT, 5)
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box1.Add(self.exBtn, 0)
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box2 = wxBoxSizer(wxHORIZONTAL)
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box2.Add(self.inp, 1, wxALIGN_CENTER)
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box2.Add(self.sndBtn, 0, wxLEFT, 5)
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box2.Add(self.termBtn, 0, wxLEFT, 5)
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sizer = wxBoxSizer(wxVERTICAL)
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sizer.Add(box1, 0, wxEXPAND|wxALL, 10)
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sizer.Add(self.out, 1, wxEXPAND|wxALL, 10)
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sizer.Add(box2, 0, wxEXPAND|wxALL, 10)
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self.SetSizer(sizer)
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self.SetAutoLayout(True)
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def __del__(self):
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if self.process is not None:
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self.process.Detach()
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self.process.CloseOutput()
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self.process = None
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def OnExecuteBtn(self, evt):
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cmd = self.cmd.GetValue()
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self.process = wxProcess(self)
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self.process.Redirect();
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pid = wxExecute(cmd, wxEXEC_ASYNC, self.process)
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self.log.write('OnExecuteBtn: "%s" pid: %s\n' % (cmd, pid))
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self.inp.Enable(True)
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self.sndBtn.Enable(True)
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self.termBtn.Enable(True)
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self.cmd.Enable(False)
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self.exBtn.Enable(False)
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self.inp.SetFocus()
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def OnSendText(self, evt):
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text = self.inp.GetValue()
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self.inp.SetValue('')
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self.log.write('OnSendText: "%s"\n' % text)
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self.process.GetOutputStream().write(text + '\n')
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self.inp.SetFocus()
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def OnCloseStream(self, evt):
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self.log.write('OnCloseStream\n')
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#print "b4 CloseOutput"
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self.process.CloseOutput()
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#print "after CloseOutput"
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def OnIdle(self, evt):
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if self.process is not None:
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stream = self.process.GetInputStream()
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if stream.CanRead():
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text = stream.read()
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self.out.AppendText(text)
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def OnProcessEnded(self, evt):
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self.log.write('OnProcessEnded, pid:%s, exitCode: %s\n' %
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(evt.GetPid(), evt.GetExitCode()))
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stream = self.process.GetInputStream()
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if stream.CanRead():
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text = stream.read()
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self.out.AppendText(text)
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self.process.Destroy()
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self.process = None
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self.inp.Enable(False)
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self.sndBtn.Enable(False)
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self.termBtn.Enable(False)
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self.cmd.Enable(True)
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self.exBtn.Enable(True)
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#----------------------------------------------------------------------
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def runTest(frame, nb, log):
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win = TestPanel(nb, -1, log)
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return win
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#----------------------------------------------------------------------
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overview = """\
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<html><body>
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<h2>wxProcess</h2>
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wxProcess lets you get notified when an asyncronous child process
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started by wxExecute terminates, and also to get input/output streams
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for the child process's stdout, stderr and stdin.
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<p>
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This demo launches a simple python script that echos back on stdout
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lines that it reads from stdin. You can send text to the echo
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process' stdin by typing in the lower textctrl and clicking Send.
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<p>
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Clicking the Close Stream button will close the demo's end of the
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stdin pipe to the child process. In our case that will cause the
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child process to exit its main loop.
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</body><html>
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"""
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