git.saurik.com Git - wxWidgets.git/blame_incremental

... / ...

Commit	Line	Data
	1
	2	import wx
	3
	4	#----------------------------------------------------------------------
	5
	6	class TestPanel(wx.Panel):
	7	def __init__(self, parent, ID, log):
	8	wx.Panel.__init__(self, parent, ID)
	9	self.log = log
	10
	11	self.process = None
	12	self.Bind(wx.EVT_IDLE, self.OnIdle)
	13
	14	# We can either derive from wx.Process and override OnTerminate
	15	# or we can let wx.Process send this window an event that is
	16	# caught in the normal way...
	17	self.Bind(wx.EVT_END_PROCESS, self.OnProcessEnded)
	18
	19
	20	# Make the controls
	21	prompt = wx.StaticText(self, -1, 'Command line:')
	22	self.cmd = wx.TextCtrl(self, -1, 'python -u data/echo.py')
	23	self.exBtn = wx.Button(self, -1, 'Execute')
	24
	25	self.out = wx.TextCtrl(self, -1, '', style=wx.TE_MULTILINE\|wx.TE_READONLY)
	26
	27	self.inp = wx.TextCtrl(self, -1, '', style=wx.TE_PROCESS_ENTER)
	28	self.sndBtn = wx.Button(self, -1, 'Send')
	29	self.termBtn = wx.Button(self, -1, 'Close Stream')
	30	self.inp.Enable(False)
	31	self.sndBtn.Enable(False)
	32	self.termBtn.Enable(False)
	33
	34	# Hook up the events
	35	self.Bind(wx.EVT_BUTTON, self.OnExecuteBtn, self.exBtn)
	36	self.Bind(wx.EVT_BUTTON, self.OnSendText, self.sndBtn)
	37	self.Bind(wx.EVT_BUTTON, self.OnCloseStream, self.termBtn)
	38	self.Bind(wx.EVT_TEXT_ENTER, self.OnSendText, self.inp)
	39
	40
	41	# Do the layout
	42	box1 = wx.BoxSizer(wx.HORIZONTAL)
	43	box1.Add(prompt, 0, wx.ALIGN_CENTER)
	44	box1.Add(self.cmd, 1, wx.ALIGN_CENTER\|wx.LEFT\|wx.RIGHT, 5)
	45	box1.Add(self.exBtn, 0)
	46
	47	box2 = wx.BoxSizer(wx.HORIZONTAL)
	48	box2.Add(self.inp, 1, wx.ALIGN_CENTER)
	49	box2.Add(self.sndBtn, 0, wx.LEFT, 5)
	50	box2.Add(self.termBtn, 0, wx.LEFT, 5)
	51
	52	sizer = wx.BoxSizer(wx.VERTICAL)
	53	sizer.Add(box1, 0, wx.EXPAND\|wx.ALL, 10)
	54	sizer.Add(self.out, 1, wx.EXPAND\|wx.ALL, 10)
	55	sizer.Add(box2, 0, wx.EXPAND\|wx.ALL, 10)
	56
	57	self.SetSizer(sizer)
	58	self.SetAutoLayout(True)
	59
	60
	61	def __del__(self):
	62	if self.process is not None:
	63	self.process.Detach()
	64	self.process.CloseOutput()
	65	self.process = None
	66
	67
	68	def OnExecuteBtn(self, evt):
	69	cmd = self.cmd.GetValue()
	70
	71	self.process = wx.Process(self)
	72	self.process.Redirect();
	73	pid = wx.Execute(cmd, wx.EXEC_ASYNC, self.process)
	74	self.log.write('OnExecuteBtn: "%s" pid: %s\n' % (cmd, pid))
	75
	76	self.inp.Enable(True)
	77	self.sndBtn.Enable(True)
	78	self.termBtn.Enable(True)
	79	self.cmd.Enable(False)
	80	self.exBtn.Enable(False)
	81	self.inp.SetFocus()
	82
	83
	84	def OnSendText(self, evt):
	85	text = self.inp.GetValue()
	86	self.inp.SetValue('')
	87	self.log.write('OnSendText: "%s"\n' % text)
	88	self.process.GetOutputStream().write(text + '\n')
	89	self.inp.SetFocus()
	90
	91
	92	def OnCloseStream(self, evt):
	93	self.log.write('OnCloseStream\n')
	94	#print "b4 CloseOutput"
	95	self.process.CloseOutput()
	96	#print "after CloseOutput"
	97
	98	def OnIdle(self, evt):
	99	if self.process is not None:
	100	stream = self.process.GetInputStream()
	101
	102	if stream.CanRead():
	103	text = stream.read()
	104	self.out.AppendText(text)
	105
	106
	107	def OnProcessEnded(self, evt):
	108	self.log.write('OnProcessEnded, pid:%s, exitCode: %s\n' %
	109	(evt.GetPid(), evt.GetExitCode()))
	110
	111	stream = self.process.GetInputStream()
	112
	113	if stream.CanRead():
	114	text = stream.read()
	115	self.out.AppendText(text)
	116
	117	self.process.Destroy()
	118	self.process = None
	119	self.inp.Enable(False)
	120	self.sndBtn.Enable(False)
	121	self.termBtn.Enable(False)
	122	self.cmd.Enable(True)
	123	self.exBtn.Enable(True)
	124
	125
	126	#----------------------------------------------------------------------
	127
	128	def runTest(frame, nb, log):
	129	win = TestPanel(nb, -1, log)
	130	return win
	131
	132
	133	#----------------------------------------------------------------------
	134
	135
	136	overview = """\
	137	<html><body>
	138	<h2>wx.Process</h2>
	139
	140	wx.Process lets you get notified when an asyncronous child process
	141	started by wxExecute terminates, and also to get input/output streams
	142	for the child process's stdout, stderr and stdin.
	143
	144	<p>
	145	This demo launches a simple python script that echos back on stdout
	146	lines that it reads from stdin. You can send text to the echo
	147	process' stdin by typing in the lower textctrl and clicking Send.
	148
	149	<p>
	150	Clicking the Close Stream button will close the demo's end of the
	151	stdin pipe to the child process. In our case that will cause the
	152	child process to exit its main loop.
	153
	154	</body><html>
	155	"""
	156
	157
	158	if __name__ == '__main__':
	159	import sys,os
	160	import run
	161	run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])