| | 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])]) |
projects / wxWidgets.git / blame_incremental