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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# event event lister for libcaca
# Copyright (c) 2010 Alex Foulon <alxf@lavabit.com>
#
# This file is a Python port of "examples/event.c"
# which is:
# Copyright (c) 2004-2010 Sam Hocevar <sam@hocevar.net>
# All Rights Reserverd
#
# This library is free software. It comes without any warranty, to
# the extent permitted by applicable law. You can redistribute it
# and/or modify it under the terms of the Do What the Fuck You Want
# to Public License, Version 2, as published by Sam Hocevar. See
# http://www.wtfpl.net/ for more details.
#
import sys
import caca
from caca.canvas import Canvas, CanvasError
from caca.display import Display, DisplayError, Event
def print_event(cv, x, y, event):
""" Print event name.
:cv: libcaca canvas
:x: X coordinate
:y: Y coordinate
:event: event to display
"""
if event.get_type() == caca.EVENT_NONE:
cv.put_str(x, y, "CACA_EVENT_NONE")
elif event.get_type() == caca.EVENT_KEY_PRESS:
character = event.get_key_ch()
if character > 0x1f and character < 0x80:
cv.put_str(x, y, "CACA_EVENT_KEY_PRESS 0x%02x (%s)" % (character, chr(character)))
else:
cv.put_str(x, y, "CACA_EVENT_KEY_PRESS 0x%02x (%s)" % (character, '?'))
elif event.get_type() == caca.EVENT_KEY_RELEASE:
character = event.get_key_ch()
if character > 0x1f and character < 0x80:
cv.put_str(x, y, "CACA_EVENT_KEY_RELEASE 0x%02x (%s)" % (character, chr(character)))
else:
cv.put_str(x, y, "CACA_EVENT_KEY_RELEASE 0x%02x (%s)" % (character, '?'))
elif event.get_type() == caca.EVENT_MOUSE_MOTION:
cv.put_str(x, y, "CACA_EVENT_MOUSE_MOTION %u %u" % (event.get_mouse_x(),
event.get_mouse_y()))
elif event.get_type() == caca.EVENT_MOUSE_PRESS:
cv.put_str(x, y, "CACA_EVENT_MOUSE_PRESS %u" % (event.get_mouse_button()))
elif event.get_type() == caca.EVENT_MOUSE_RELEASE:
cv.put_str(x, y, "CACA_EVENT_MOUSE_RELEASE %u" % (event.get_mouse_button()))
elif event.get_type() == caca.EVENT_RESIZE:
cv.put_str(x, y, "CACA_EVENT_RESIZE %u %u" % (event.get_resize_width(),
event.get_resize_height()))
elif event.get_type() == caca.EVENT_QUIT:
cv.put_str(x, y, "CACA_EVENT_QUIT")
else:
cv.put_str(x, y, "CACA_EVENT_UNKNOWN")
def main():
""" Main function. """
events = []
quit = 0
quit_string = ["", "q", "qu", "qui", "quit"]
try:
cv = Canvas(80, 24)
dp = Display(cv)
except (CanvasError, DisplayError) as err:
sys.stderr.write("%s\n" % err)
sys.exit(127)
h = cv.get_height() - 1
cv.set_color_ansi(caca.COLOR_WHITE, caca.COLOR_BLUE)
cv.draw_line(0, 0, cv.get_width() - 1, 0, ' ')
cv.draw_line(0, h, cv.get_width() - 1, h, ' ')
cv.put_str(0, h, "Type \"quit\" to exit")
dp.refresh()
while quit < 4:
ev = Event()
if dp.get_event(caca.EVENT_ANY, ev, -1):
if ev.get_type() == caca.EVENT_KEY_PRESS:
key = ev.get_key_ch()
if key == ord('u') and quit == 1:
quit += 1
elif key == ord('i') and quit == 2:
quit += 1
elif key == ord('t') and quit == 3:
quit += 1
elif key == ord('q'):
quit = 1
else:
quit = 0
events.append(ev)
cv.set_color_ansi(caca.COLOR_LIGHTGRAY, caca.COLOR_BLACK)
cv.clear()
#print current event
cv.set_color_ansi(caca.COLOR_WHITE, caca.COLOR_BLUE)
cv.draw_line(0, 0, cv.get_width() - 1, 0, ' ')
if events:
print_event(cv, 0, 0, events[-1])
cv.draw_line(0, h, cv.get_width() - 1, h, ' ')
cv.put_str(0, h, "Type \"quit\" to exit: %s" % quit_string[quit])
#print previous events
cv.set_color_ansi(caca.COLOR_WHITE, caca.COLOR_BLACK)
counts = list(range(0, len(events)-1))
counts.reverse()
if len(events) > 1:
j = 0
for i in counts:
if j < h - 1 and events[i].get_type():
print_event(cv, 0, ((len(events) - 1) - i), events[i])
j += 1
dp.refresh()
if __name__ == "__main__":
main()
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