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Removed old code that used Popen and instead uses the PySimpleGUI Exec API calls for an all-in-one demo. Added expansion of the Multilline and a SizeGrip so that it's obvious to user the window is resizable.

This commit is contained in:
PySimpleGUI 2022-05-14 15:10:37 -04:00
parent 6267f27f5b
commit a35687ac51
1 changed files with 23 additions and 33 deletions
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44
DemoPrograms/Demo_Script_Launcher_ANSI_Color_Output.py
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@ -1,12 +1,14 @@
import subprocess
import sys
import PySimpleGUI as sg
import re
"""
Demo Program - Realtime output of a shell command in the window using ANSI color codes
Shows how you can run a long-running subprocess and have the output
be displayed in realtime in the window. The output is assumed to have color codes embedded in it
be displayed in realtime in the window. The output is assumed to have color codes embedded in it.
The commands you enter will be run as shell commands. The output is then shown with the ANSI strings parsed.
Copyright 2022 PySimpleGUI
"""
@ -78,50 +80,38 @@ def cut_ansi_string_into_parts(string_with_ansi_codes):
for x in range(0, len(tuple_list)):
if tuple_list[x][0]:
new_tuple_list += [(tuple_list[x][0], tuple_list[x][1], tuple_list[x][2], tuple_list[x][3])]
new_tuple_list += [[tuple_list[x][0], tuple_list[x][1], tuple_list[x][2], tuple_list[x][3]]]
return new_tuple_list
def main():
layout = [
[sg.Multiline(size=(110, 30), font='courier 10', background_color='black', text_color='white', key='-MLINE-')],
[sg.Multiline(size=(110, 30), font='courier 10', background_color='black', text_color='white', key='-MLINE-', expand_x=True, expand_y=True)],
[sg.T('Promt> '), sg.Input(key='-IN-', focus=True, do_not_clear=False)],
[sg.Button('Run', bind_return_key=True), sg.Button('Exit')]]
[sg.Button('Run', bind_return_key=True), sg.Button('Exit'), sg.Sizegrip()]]
window = sg.Window('Realtime Shell Command Output', layout)
window = sg.Window('Realtime Shell Command Output', layout, resizable=True)
while True: # Event Loop
event, values = window.read()
# print(event, values)
if event in (sg.WIN_CLOSED, 'Exit'):
break
elif event == 'Run':
runCommand(cmd=values['-IN-'], window=window)
window.close()
args = values['-IN-'].split(' ')
p = sg.execute_command_subprocess(args[0], *args[1:], wait=False, pipe_output=True, merge_stderr_with_stdout=True )
lines = sg.execute_get_results(p)
def runCommand(cmd, timeout=None, window=None):
""" run shell command
@param cmd: command to execute
@param timeout: timeout for command execution
@param window: the PySimpleGUI window that the output is going to (needed to do refresh on)
@return: (return code from command, command output)
"""
p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
for line in p.stdout:
line = line.decode(errors='replace' if (sys.version_info) < (3, 5) else 'backslashreplace').rstrip()
for line in lines:
if line is None:
continue
ansi_list = cut_ansi_string_into_parts(line)
for ansi_item in ansi_list:
if ansi_item[1] == 'Reset':
ansi_item[1] = None
window['-MLINE-'].update(ansi_item[0] + '\n', text_color_for_value=ansi_item[1], background_color_for_value=ansi_item[2], append=True,
autoscroll=True)
window['-MLINE-'].update(ansi_item[0] , text_color_for_value=ansi_item[1], background_color_for_value=ansi_item[2], append=True, autoscroll=True)
window.refresh()
retval = p.wait(timeout)
return retval
window.close()
sg.theme('Dark Blue 3')
main()