avocados/support/inputboxExample.py

88 lines
3.0 KiB
Python

#!/usr/bin/env python3
# by Timothy Downs, inputbox written for my map editor
# Edited to be python3 compatible by @SteveClement on Twitter
# Example version is with additional comments
# This program needs a little cleaning up
# It ignores the shift key
# And, for reasons of my own, this program converts "-" to "_"
# A program to get user input, allowing backspace etc
# shown in a box in the middle of the screen
#
# Called by:
#
# import inputboxExample
# answer = inputbox.ask(screen, "Your name")
#
# Only near the center of the screen is blitted to
#
# Obviously inputboxExample.py needs to be in the same directory you started you python from
import pygame, pygame.font, pygame.event, pygame.draw, string
from pygame.locals import *
def get_key():
while True:
event = pygame.event.poll()
if event.type == KEYDOWN:
return event.key
else:
pass
def display_box(screen, message):
"Print a message in a box in the middle of the screen, no font selected, no fancy colors"
fontobject = pygame.font.Font(None,18)
# Draw a RED (r255,g0,b0) rectangle
pygame.draw.rect(screen, (255,0,0),
((screen.get_width() / 2) - 100,
(screen.get_height() / 2) - 10,
200,20), 0)
# Draw a GREEN (r0,g255,b0) rectangle
pygame.draw.rect(screen, (0,255,0),
((screen.get_width() / 2) - 102,
(screen.get_height() / 2) - 12,
204,24), 1)
if len(message) != 0:
# blit a WHITE (r255,g255,b255) fontobject with the contents of the message variable to the screen where we can enter Text
screen.blit(fontobject.render(message, 1, (255,255,255)),
((screen.get_width() / 2) - 100, (screen.get_height() / 2) - 10))
pygame.display.flip()
def ask(screen, question):
"ask(screen, question) -> answer"
# Init font engine
pygame.font.init()
current_string = []
# call display_box() function
display_box(screen, question + ": " + "".join(current_string))
# Main endless loop untill we press the Return/Enter key (K_RETURN)
while True:
# Get pressed key
inkey = get_key()
# Check what key was pressed
if inkey == K_BACKSPACE:
# remove one character from current_string
current_string = current_string[0:-1]
elif inkey == K_RETURN:
break
elif inkey == K_MINUS:
# appent an underscore if minus (-) entered
current_string.append("_")
elif inkey <= 127:
# All other characters get appended to current_string
current_string.append(chr(inkey))
# Add characters to current_string and display them on the screen
display_box(screen, question + ": " + "".join(current_string))
# Once enter pressed return the contents of current string
return "".join(current_string)
def main():
# set the screen size to 320x240
screen = pygame.display.set_mode((320,240))
# Print the return value of the function ask()
print((ask(screen, "Please type your Name") + " was entered"))
if __name__ == '__main__': main()