def draw(self, force=False):
"""draw everything, and all widgets"""
(h, w) = get_real_termial_size()
if force or self.__last_size != (h, w):
log.msg("App Draw called ", (h, w), self.__last_size)
attr = curses.color_pair(1)
self._menu.clear()
self._menu.refresh()
self._menu = curses.newwin(h, w, 0, 0)
self._menu.attrset(attr)
self._menu.box()
self._menu.hline(2, 1, curses.ACS_HLINE, w - 2)
self.__draw_menu()
self._menu.refresh()
# draw children last
self.__drawwidgets(force)
self.__last_size = (h, w)
def __init__(self, reactor, title="My App", menu={}):
"""menu -> { 'file':callback, 'view':callback}
"""
log.startLogging(open("log.log", "w"))
self.__reactor = reactor
signal(SIGWINCH, self.onResize)
# curses.setupterm()
self.__first_time_through = True
self.__stdscr = curses.initscr()
self.__stdscr.keypad(True)
self.__stdscr.nodelay(True)
y, x = get_real_termial_size()
self._menu = curses.newwin(y, x, 0, 0)
self.__last_size = (y, x)
self.__focus__items = []
self.__in_focus = 0
curses.start_color()
# normal colour
curses.init_pair(1, curses.COLOR_WHITE, curses.COLOR_BLACK)
# focused colour
curses.init_pair(2, curses.COLOR_YELLOW, curses.COLOR_BLACK)
# lighter
curses.init_pair(3, curses.COLOR_YELLOW, curses.COLOR_BLACK)
curses.init_pair(4, curses.COLOR_YELLOW, curses.COLOR_BLACK)
# self.__stdscr.bkgd(' ', curses.color_pair(1))
curses.noecho()
curses.cbreak()
curses.curs_set(False)
self.title = title
self.__menu__ = menu
self.__key_handler__ = {"menu": {}}
# list of widgets
self._widgets = {}
# refresh
self.draw(True)
# so we can read stdio
self.__reactor.addReader(self)
def __size__(self):
# look for springs (-1 means fix to screen dim)
# use -1 , fill width,
# -2, half of the width ??
y, x = get_real_termial_size()
w = x - self.x if self.w < 0 else self.w
h = y - self.y if self.h < 0 else self.h
if (w, h) != self.__last_size:
self.__changed = True
self.__last_size = (w, h)
self.__max_number_of_displayed_rows__ = h - 2
return h, w
def __size__(self):
# look for springs (-1 means fix to screen dim)
# use -1 , fill width,
# -2, half of the width ??
y, x = get_real_termial_size()
w = x - self.x if self.w < 0 else self.w
h = y - self.y if self.h < 0 else self.h
if (w, h) != self.__last_size:
self.__changed = True
self.__last_size = (w, h)
self.__column_width = self.w / self.dim[0] - 1 # (excluding the '|')
self.__row_height = self.h / self.dim[1] - 1 # (excluding the '-')
self.__max_number_of_displayed_rows__ = h - 2
self.__max_number_of_displayed_cols__ = w / 4 - 2
return h, w
def __draw_menu(self):
position = 2
self.__key_handler__["menu"] = {}
for menu, callback in self.__menu__:
text = menu.split("&")
hot_key = text[1][0]
self._menu.addstr(1, position, text[0], curses.A_NORMAL)
position += len(text[0])
self._menu.addstr(1, position, hot_key, curses.A_UNDERLINE | curses.A_BOLD)
position += 1
self._menu.addstr(1, position, text[1][1:], curses.A_NORMAL)
position += len(text[1][1:]) + 2
self.__key_handler__["menu"][ord(hot_key)] = callback
# draw app title
y, x = get_real_termial_size()
middle = (x - position) / 2
self._menu.addstr(1, middle, "=== " + self.title + " ===", curses.A_NORMAL)
def onResize(self, sig, stack):
h, w = get_real_termial_size()
curses.resizeterm(h, w)
self.process_character(curses.KEY_RESIZE)