def test_textwidth(self):
''' test textwidth() '''
# without tab
self.assertEqual(textwidth('A\u00c0\u3042'), 1 + 1 + 2)
self.assertEqual(textwidth('A\u00c0\u3042'.encode(get_encoding())),
1 + 1 + 2)
# with tab
self.assertEqual(textwidth('\tA\u00c0\u3042'), 4 + 1 + 1 + 2)
self.assertEqual(textwidth('\tA\u00c0\u3042'.encode(get_encoding())),
4 + 1 + 1 + 2)
def test_charwidth(self):
''' test charwidth() '''
# example of 1-column character (ASCII)
self.assertEqual(charwidth('A'), 1)
self.assertEqual(charwidth('A'.encode(get_encoding())), 1)
# example of 1-column character (non-ASCII)
self.assertEqual(charwidth('\u00c0'), 1)
self.assertEqual(charwidth('\u00c0'.encode(get_encoding())), 1)
# example of 2-column character
self.assertEqual(charwidth('\u3042'), 2)
self.assertEqual(charwidth('\u3042'.encode(get_encoding())), 2)
def show_actions(self):
'''Read through the actions dictionary, displaying all the actions
descriptive text along the footer (along with a prefix linked to
its associated keystroke)
'''
self.footer.window.clear()
if InnerWindow.USE_ESC:
prefix = " Esc-"
else:
prefix = " F"
strings = []
length = 0
action_format = "%s%i_%s"
for key in sorted(self.actions.keys()):
key_num = key - curses.KEY_F0
action_text = self.actions[key].text
action_str = action_format % (prefix, key_num, action_text)
strings.append(action_str)
display_str = "".join(strings)
max_len = self.footer.window.getmaxyx()[1]
length = textwidth(display_str)
if not InnerWindow.USE_ESC:
length += (len(" Esc-") - len(" F")) * len(self.actions)
if length > max_len:
raise ValueError("Can't display footer actions - string too long")
self.footer.window.addstr(display_str.encode(get_encoding()))
self.footer.window.noutrefresh()
def exit_text_installer(logname=None, errcode=0):
'''Close out the logger and exit with errcode'''
logging.info("**** END ****")
logging.shutdown()
if logname is not None:
print _("Exiting Text Installer. Log is available at:\n%s") % logname
if isinstance(errcode, unicode):
errcode = errcode.encode(get_encoding())
sys.exit(errcode)
def add_text(self,
text,
start_y=0,
start_x=0,
max_chars=None,
centered=False):
'''Add a single line of text to the window
'text' must fit within the specified space, or it will be truncated
'''
win_y, win_x = self.window.getmaxyx()
logging.log(
LOG_LEVEL_INPUT, "start_y=%d, start_x=%d, max_chars=%s, "
"centered=%s, win_max_x=%s, win_max_y=%s", start_y, start_x,
max_chars, centered, win_x, win_y)
max_x = self.window.getmaxyx()[1] - self.border_size[1]
start_x += self.border_size[1]
abs_max_chars = max_x - start_x
if max_chars is None:
max_chars = abs_max_chars
else:
max_chars = min(max_chars, abs_max_chars)
text = fit_text_truncate(text, max_chars)
if centered:
start_x = (max_x - textwidth(text)) / 2 + start_x
text = unicode(text)
text = text.encode(get_encoding())
logging.log(
LOG_LEVEL_INPUT, "calling addstr with params start_y=%s,"
"start_x=%s, text=%s", start_y, start_x, text)
self.window.addstr(start_y, start_x, text)
self.no_ut_refresh()