PySimpleGUI/DemoPrograms/Demo_HowDoI.py

97 lines
3.9 KiB
Python

#!/usr/bin/env python
import PySimpleGUI as sg
import subprocess
'''
Famouns howdoi command in PSG
'''
# Test this command in a dos window if you are having trouble.
HOW_DO_I_COMMAND = 'python -m howdoi.howdoi'
def HowDoI():
'''
Make and show a window (PySimpleGUI form) that takes user input and sends to the HowDoI web oracle
Excellent example of 2 GUI concepts
1. Output Element that will show text in a scrolled window
2. Non-Window-Closing Buttons - These buttons will cause the form to return with the form's values, but doesn't close the form
:return: never returns
'''
# ------- Make a new Window ------- #
# give our form a spiffy set of colors
sg.theme('GreenTan')
layout = [
[sg.Text('Ask and your answer will appear here....', size=(40, 1))],
[sg.Output(size=(120, 30), font=('Helvetica 10'))],
[sg.Spin(values=(1, 2, 3, 4), initial_value=1, size=(2, 1), key='Num Answers', font='Helvetica 15'),
sg.Text('Num Answers', font='Helvetica 15'), sg.CBox(
'Display Full Text', key='full text', font='Helvetica 15'),
sg.Text('Command History', font='Helvetica 15'), sg.Text('', size=(40, 3), text_color=sg.BLUES[0], key='history')],
[sg.MLine(size=(85, 5), enter_submits=True, key='query', do_not_clear=False),
sg.Button('SEND', button_color=(
sg.YELLOWS[0], sg.BLUES[0]), bind_return_key=True),
sg.Button('EXIT', button_color=(sg.YELLOWS[0], sg.GREENS[0]))]
]
window = sg.Window('How Do I ??', layout, default_element_size=(30, 2),
font=('Helvetica', ' 13'),
default_button_element_size=(8, 2),
return_keyboard_events=True, no_titlebar=True,
grab_anywhere=True)
# ---===--- Loop taking in user input and using it to query HowDoI --- #
command_history = []
history_offset = 0
while True:
event, values = window.read()
if event == 'SEND':
query = values['query'].rstrip()
# print(query)
# send the string to HowDoI
QueryHowDoI(query, values['Num Answers'], values['full text'])
command_history.append(query)
history_offset = len(command_history)-1
# manually clear input because keyboard events blocks clear
window['query'].update('')
window['history'].update('\n'.join(command_history[-3:]))
elif event == None or event == 'EXIT': # if exit button or closed using X
break
# scroll back in history
elif 'Up' in event and len(command_history):
command = command_history[history_offset]
# decrement is not zero
history_offset -= 1 * (history_offset > 0)
window['query'].update(command)
# scroll forward in history
elif 'Down' in event and len(command_history):
# increment up to end of list
history_offset += 1 * (history_offset < len(command_history)-1)
command = command_history[history_offset]
window['query'].update(command)
elif 'Escape' in event: # clear currently line
window['query'].update('')
window.close()
def QueryHowDoI(Query, num_answers, full_text):
'''
Kicks off a subprocess to send the 'Query' to HowDoI
Prints the result, which in this program will route to a gooeyGUI window
:param Query: text english question to ask the HowDoI web engine
:return: nothing
'''
full_text_option = ' -a' if full_text else ''
t = subprocess.Popen(HOW_DO_I_COMMAND + ' \"' + Query + '\" -n ' +
str(num_answers)+full_text_option, stdout=subprocess.PIPE)
(output, err) = t.communicate()
print('{:^88}'.format(Query.rstrip()))
print('_'*60)
print(output.decode("utf-8"))
exit_code = t.wait()
if __name__ == '__main__':
HowDoI()