44 lines
1.8 KiB
Python
44 lines
1.8 KiB
Python
import PySimpleGUI as sg
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'''
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IP Address entry window with digit validation and auto advance
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If not a digit or ., the ignored
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. will advance the focus to the next entry
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On the last input, once it's complete the focus moves to the OK button
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Pressing spacebar with focus on OK generates an _OK_ event
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'''
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# create a short-cut element so don't have to type this in over and over
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InIp = lambda key: sg.Input(do_not_clear=True, size=(3, 1), key=key, pad=(0, 2))
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layout = [[sg.Text('Your typed chars appear here:'), sg.Text('', key='_OUTPUT_')],
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[InIp(0), sg.T('.'), InIp(1), sg.T('.'), InIp(2), sg.T('.'), InIp(3)],
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[sg.Button('Ok', key='_OK_', bind_return_key=True), sg.Button('Exit')]]
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window = sg.Window('Window Title', return_keyboard_events=True).Layout(layout)
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while True: # Event Loop
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event, values = window.Read()
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print(event)
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if event is None or event == 'Exit':
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break
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elem = window.FindElementWithFocus()
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if elem is not None:
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key = elem.Key
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value = values[key] # get value of input field that has focus
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if event == '.' and key!= '_OK_': # if a ., then advance to next field
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elem.Update(value[:-1])
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value = value[:-1]
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next_elem = window.Element(key+1)
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next_elem.SetFocus()
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elif event not in '0123456789':
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elem.Update(value[:-1])
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elif len(value) > 2 and key < 3: # if 2 digits typed in, move on to next input
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next_elem = window.Element(key+1)
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next_elem.SetFocus()
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elif len(value)> 2 and key == 3:
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window.Element('_OK_').SetFocus()
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print('You entered IP Address {}.{}.{}.{}'.format(*values.values()))
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window.Close()
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