import curses
+import os
+import signal
+import time
def set_window_geometries():
if (win_i > 0):
# If not, get win's closest predecessor starting a new stack on the
- # screen top, fit win's top left corner that predecessor's top
- # right corner.
+ # screen top,fit win's top left to that win_top's top right corner.
win_top = None
for i in range(win_i - 1, -1, -1):
win_top = windows[i]
win["start"][0] = next_free_y
# If that fails, try to fit win's top left corner to the top right
- # corner of its closest predecessor win_test that 1) is below
- # win_top (win's closest predecessor starting a new stack on the
- # screen top) 2) and has enough space open to its right between its
- # right edge and the lower edge of a window win_high located
- # directly above win_test to fit win there (without growing further
- # to the right than win_high does or surpassing the lower edge of
- # the screen).
+ # corner of its closest predecessor win_test 1) below win_top (see
+ # above) 2) and with enough space open to its right between its
+ # right edge and the lower edge of a win_high located directly
+ # above win_test to fit win there (without growing further to the
+ # right than win_high does or surpassing the screen's lower edge).
else:
win_test = win_prev
win_high = None
break
win_test = win_high
+ global screen_size, stdscr
+ curses.endwin()
+ stdscr = curses.initscr()
+ screen_size = stdscr.getmaxyx()
for win in windows:
set_window_size()
place_window()
j = win["start"][int(k == 0)] - sep_size
if (j >= 0 and j < screen_size[int(k == 0)]):
start = win["start"][k]
+ # start = start if start >= 0 else 0
end = win["start"][k] + win["size"][k]
- start = start if start >= 0 else 0
end = end if end < screen_size[k] else screen_size[k]
if k:
[stdscr.addch(j, i, '-') for i in range(start, end)]
stdscr.addch(down, right, '+')
def draw_window_contents():
- for win in windows:
- offset, size, winmap = win["func"]()
+ def draw_winmap():
stop = [0, 0]
for i in range(2):
stop[i] = win["size"][i] + offset[i]
if (y_in_screen < screen_size[0]
and x_in_screen < screen_size[1]):
stdscr.addch(y_in_screen, x_in_screen, cell)
+ def draw_scroll_hints():
+ def draw_scroll_string(n_lines_outside):
+ hint = ' ' + str(n_lines_outside + 1) + ' more ' + unit + ' '
+ if len(hint) <= win["size"][ni]:
+ non_hint_space = win["size"][ni] - len(hint)
+ hint_offset = int(non_hint_space / 2)
+ for j in range(win["size"][ni] - non_hint_space):
+ pos_2 = win["start"][ni] + hint_offset + j
+ x, y = (pos_2, pos_1) if ni else (pos_1, pos_2)
+ stdscr.addch(y, x, hint[j], curses.A_REVERSE)
+ def draw_scroll_arrows(ar1, ar2):
+ for j in range(win["size"][ni]):
+ pos_2 = win["start"][ni] + j
+ x, y = (pos_2, pos_1) if ni else (pos_1, pos_2)
+ stdscr.addch(y, x, ar1 if ni else ar2, curses.A_REVERSE)
+ for i in range(2):
+ ni = int(i == 0)
+ unit = 'rows' if ni else 'columns'
+ if (offset[i] > 0):
+ pos_1 = win["start"][i]
+ draw_scroll_arrows('^', '<')
+ draw_scroll_string(offset[i])
+ if (size[i] > offset[i] + win["size"][i]):
+ pos_1 = win["start"][i] + win["size"][i] - 1
+ draw_scroll_arrows('v', '>')
+ draw_scroll_string(size[i] - offset[i] - win["size"][i])
+ for win in windows:
+ offset, size, winmap = win["func"]()
+ draw_winmap()
+ draw_scroll_hints()
+ stdscr.clear()
draw_window_border_lines()
draw_window_border_corners()
draw_window_contents()
stdscr.refresh()
-def main(stdscr):
+def test_and_poll_server():
+ half_wait_time = 5
+ new_file_content = io["file_in"].read()
+ # TODO: do something useful with new_file_content
+ server_answered = len(new_file_content) > 0
+ if server_answered:
+ test_and_poll_server.ping_sent = False
+ elif test_and_poll_server.wait_start + half_wait_time < time.time():
+ if not test_and_poll_server.ping_sent:
+ io["file_out"].write("PING\n")
+ io["file_out"].flush()
+ test_and_poll_server.ping_sent = True
+ test_and_poll_server.wait_start = time.time()
+ elif test_and_poll_server.ping_sent:
+ raise SystemExit("Server not answering anymore.")
+test_and_poll_server.wait_start = 0
+
+
+def cursed_main(stdscr):
curses.noecho()
curses.curs_set(False)
# stdscr.keypad(True)
+ signal.signal(signal.SIGWINCH,
+ lambda ignore_1, ignore_2: set_window_geometries())
set_window_geometries()
+ delay = 1
while True:
+ stdscr.timeout(delay)
+ delay = delay * 2 if delay < 1000 else delay
draw_screen()
- stdscr.getch()
+ char = stdscr.getch()
+ if (char >= 0):
+ if chr(char) in commands:
+ commands[chr(char)]()
+ test_and_poll_server()
def foo():
return offset, size, winmap
+def command_quit():
+ io["file_out"].write("QUIT\n")
+ io["file_out"].flush()
+ raise SystemExit("Received QUIT command, forwarded to server, leaving.")
+
+
windows = [
{"config": [1, 33], "func": foo},
{"config": [-7, 33], "func": foo},
{"config": [4, 16], "func": foo},
{"config": [0, -34], "func": foo}
]
-
+io = {
+ "path_out": "server/in",
+ "path_in": "server/out"
+}
+commands = {
+ "Q": command_quit
+}
sep_size = 1 # Width of inter-window borders and title bars.
-stdscr = curses.initscr()
-screen_size = stdscr.getmaxyx()
-
-curses.wrapper(main)
+stdscr = None
+screen_size = [0,0]
+
+
+try:
+ if (not os.access(io["path_out"], os.F_OK)):
+ msg = "No server input file found at " + io["path_out"] + "."
+ raise SystemExit(msg)
+ io["file_out"] = open(io["path_out"], "a")
+ io["file_in"] = open(io["path_in"], "r")
+ curses.wrapper(cursed_main)
+except SystemExit as exit:
+ print("ABORTING: " + exit.args[0])
+except:
+ print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
+ raise
+finally:
+ if "file_out" in io:
+ io["file_out"].close()
+ if "file_in" in io:
+ io["file_in"].close()