def draw_clock(term):
tprint(
term,
term.move(0, term.width - 12),
term.color(colors[APP_CLOCK]),
term.on_color(colors[APP_FRAME]),
term.bold,
datetime.datetime.now().strftime("%H:%M:%S"),
)
def main_loop(term, screen):
sighook = SignalHook()
selected_window = 0
windows[selected_window].selected = True
windows[selected_window].draw_frame()
while not sighook.exit:
force = False
key_code = screen.getch()
while key_code != curses.ERR:
force = force or (key_code != curses.ERR)
if key_code in [ord("q"), ord("Q")]:
return
elif key_code == curses.KEY_RESIZE:
draw_app(term)
calculate_windows(term)
elif key_code == 9: # TAB
windows[selected_window].selected = False
selected_window += 1
if selected_window >= len(windows):
selected_window = 0
windows[selected_window].selected = True
elif key_code == curses.KEY_UP: # also scroll up
windows[selected_window].scroll_up()
elif key_code == curses.KEY_PPAGE: # PGUP
windows[selected_window].page_up()
elif key_code == curses.KEY_DOWN: # also scroll down
windows[selected_window].scroll_down()
elif key_code == curses.KEY_NPAGE: # PGDN
windows[selected_window].page_down()
elif key_code == ord(" "):
windows[selected_window].scroll_end()
key_code = screen.getch()
draw_clock(term)
for window in windows:
window.refresh(force)
tprint(term)
time.sleep(LOOP_MS / 1000)
def draw_app(term):
top_before_title = int((term.width - len(APPLICATION_TITLE)) / 2)
top_after_title = int(((term.width - len(APPLICATION_TITLE)) / 2) +
(((term.width - len(APPLICATION_TITLE)) / 2) % 1) -
12 # clock space
)
tprint(
term,
term.move(0, 0),
term.color(colors[APP_FRAME]),
term.on_color(colors[APP_BG]),
BLK * top_before_title,
term.color(colors[APP_TITLE]),
term.on_color(colors[APP_FRAME]),
term.bold,
APPLICATION_TITLE,
term.color(colors[APP_FRAME]),
term.on_color(colors[APP_BG]),
BLK * top_after_title,
term.color(colors[APP_CLOCK]),
term.on_color(colors[APP_FRAME]),
term.bold,
datetime.datetime.now().strftime("%H:%M:%S"),
term.color(colors[APP_FRAME]),
term.on_color(colors[APP_BG]),
BLK * 4,
term.move(term.height - 1, 0),
# BLK * term.width,
term.color(colors[APP_CLOCK]),
term.on_color(colors[APP_FRAME]),
"TAB: Next Window SPACE: Jump to end Q: Quit".center(term.width),
)
tformat(term.color(colors[APP_FRAME]), term.on_color(colors[APP_BG]))
for row in range(1, term.height - 1):
print(term.move(row, 0) + BLK + term.move(row, term.width - 1) + BLK)
tprint(term)
def draw_frame(self, fill=False):
tprint( # draw top edge and corners
self.term,
self.term.move(self.y, self.x),
self.term.color(self.frame) +
self.term.on_color(self.colors[LOG_BG]),
BLK * int((self.w - len(self.name)) / 2),
self.term.color(self.colors[WIN_TITLE]) +
self.term.on_color(self.frame),
self.term.bold,
self.name,
self.term.color(self.frame) +
self.term.on_color(self.colors[LOG_BG]),
BLK * int((((self.w - len(self.name)) / 2) +
(((self.w - len(self.name)) / 2) % 1)) - 18),
self.term.color(self.colors[WIN_LINES]),
self.term.on_color(self.frame),
self.term.bold,
f"lines: {locale.format_string('%d', self.reader.lines, True):>9}",
self.term.color(self.frame) +
self.term.on_color(self.colors[LOG_BG]),
BLK * 2,
)
tprint( # draw bottom edge and corners
self.term,
self.term.move(self.y + self.h - 1, self.x),
self.term.color(self.frame) +
self.term.on_color(self.colors[LOG_BG]),
BLK_BL,
BLK_B * (self.w - 2),
BLK_BR,
)
# draw left and right edge and fill window
tformat(
self.term.color(self.frame) +
self.term.on_color(self.colors[LOG_BG]))
if fill:
for row in range(self.y + 1, self.y + self.h - 1):
print(
self.term.move(row, self.x) + BLK_L +
(" " * (self.w - 2)) + BLK_R)
else:
for row in range(self.y + 1, self.y + self.h - 1):
print(
self.term.move(row, self.x) + BLK_L +
self.term.move(row, self.x + self.w - 1) + BLK_R)
# reset formatting
tprint(self.term)
def logview():
term = blessings.Terminal()
if not term.is_a_tty:
print("logview output cannot be piped, it is for display only")
elif term.number_of_colors < 16:
print(
"logview requires a terminal that supports a minimum of 16 colours"
)
else:
global config
config = parse_args()
print(f"\x1b]2;{TERM_TITLE}\x07", end="")
colors.extend(COLORS[term.number_of_colors])
for filename in config.file:
filepath = os.path.abspath(os.path.join(config.dir, filename))
if os.access(filepath, os.R_OK, effective_ids=True):
windows.append(Window(filepath, config, Logger))
elif os.access(filepath, os.F_OK, effective_ids=True):
print(f"File '{filepath}' is not readable")
else:
print(f"File '{filepath}' does not exist")
if windows and not windows[-1].reader.isOpen:
windows.pop(len(windows) - 1)
if windows:
screen = None
try:
screen = curses.initscr()
curses.noecho()
curses.cbreak()
screen.keypad(True)
screen.nodelay(True)
screen.getch()
print(term.enter_fullscreen + term.hide_cursor +
term.color(colors[APP_FG]) +
term.on_color(colors[APP_BG]) + term.clear)
draw_app(term)
calculate_windows(term, False)
for window in windows:
window.start(term)
# window.load()
# window.refresh(True)
with futures.ThreadPoolExecutor() as pool:
threads = {
pool.submit(window.load): window
for window in windows
}
for future in futures.as_completed(threads):
threads[future].refresh(True)
main_loop(term, screen)
except Exception as err:
raise err
finally:
tprint(term, term.exit_fullscreen + term.normal_cursor)
curses.nocbreak()
if screen:
screen.keypad(False)
curses.echo()
curses.endwin()
print(*log, sep="\n")
exit(0)
exit(1)