# Armaan Bhojwani 2021
import curses
-import os
+from random import shuffle
+import sys
+import textwrap
-class Status():
- index = 0
- side = 0
+from . import lightcards
- def forward(self, stack):
- if not self.index == len(stack) - 1:
- self.index += 1
- def back(self):
- if not self.index < 1:
- self.index -= 1
+class Display():
+ def __init__(self, stack, headers, obj):
+ self.stack = stack
+ self.headers = headers
+ self.obj = obj
- def flip(self):
- if self.side == 0:
- self.side = 1
+ def run(self, stdscr):
+ self.win = stdscr
+ curses.curs_set(0) # Hide cursor
+ curses.init_pair(1, curses.COLOR_CYAN, 0)
+ curses.init_pair(2, curses.COLOR_RED, 0)
+ curses.init_pair(3, curses.COLOR_YELLOW, 0)
+ self.get_key()
+
+ def disp_bar(self):
+ """
+ Display the statusbar at the bottom of the screen with progress, star
+ status, and card side.
+ """
+ (mlines, mcols) = self.win.getmaxyx()
+
+ # Calculate percent done
+ if len(self.stack) <= 1:
+ percent = "100"
+ else:
+ percent = str(round(self.obj.getIdx() /
+ len(self.stack) * 100)).zfill(2)
+
+ # Print yellow if starred
+ if self.stack[self.obj.getIdx()].getStar():
+ star_color = curses.color_pair(3)
else:
- self.side = 0
+ star_color = curses.color_pair(1)
- def setSide(self, inp):
- self.side = inp
+ # Create bar component
+ bar_start = "["
+ bar_middle = self.stack[self.obj.getIdx()].printStar()
+ bar_end = "] [" + percent + "% (" + \
+ str(self.obj.getIdx() + 1).zfill(len(str(len(self.stack)))) + \
+ "/" + str(len(self.stack)) + ")] [" + \
+ self.headers[self.obj.getSide()] + " (" + \
+ str(self.obj.getSide() + 1) + ")]"
+
+ # Put it all togethor
+ self.win.addstr(mlines - 1, 0, bar_start, curses.color_pair(1))
+ self.win.addstr(bar_middle, star_color)
+ self.win.insstr(bar_end, curses.color_pair(1))
+
+ def menu_print(self, string, err=False):
+ (mlines, mcols) = self.win.getmaxyx()
+ self.win.clear()
+ if err:
+ color = curses.color_pair(2)
+ else:
+ color = curses.color_pair(1)
+ self.disp_menu(keygrab=False)
+ self.win.addstr("\n\n" + string, color)
+ self.menu_grab()
- def getSide(self):
- return self.side
+ def menu_grab(self):
+ while True:
+ key = self.win.getkey()
+ if key == "q":
+ if len(self.stack) == self.obj.getIdx():
+ sys.exit(0)
+ elif len(self.stack) < self.obj.getIdx():
+ self.obj.setIdx(0)
+ self.get_key()
+ elif key == "y":
+ self.stack = lightcards.get_orig()[1]
+ self.menu_print("Stack reset!")
+ elif key == "u":
+ [x.unStar() for x in self.stack]
+ self.menu_print("All unstarred!")
+ elif key == "d":
+ [x.star() for x in self.stack]
+ self.menu_print("All starred!")
+ elif key == "t":
+ self.stack.reverse()
+ self.menu_print(
+ "self.stack reversed!")
+ elif key == "z":
+ shuffle(self.stack)
+ self.menu_print("Stack shuffled!")
+ elif key == "f":
+ for x in self.stack:
+ x[0], x[1] = x[1], x[0]
+ (self.headers[0], self.headers[1]) = (self.headers[1],
+ self.headers[0])
+ self.menu_print("Cards flipped!")
+ elif key == "s":
+ # Check if there are any starred cards before proceeding, and
+ # if not, don't allow to proceed and show an error message
+ cont = False
+ for x in self.stack:
+ if x.getStar():
+ cont = True
+ break
- def getIdx(self):
- return self.index
+ if cont:
+ self.stack = [x for x in self.stack if x.getStar()]
+ self.menu_print("Stars only!")
+ else:
+ self.menu_print("ERR: None are starred!", err=True)
+ elif key in ["h", "KEY_LEFT"]:
+ self.obj.setIdx(len(self.stack) - 1)
+ self.get_key()
+ elif key == "r":
+ self.obj.setIdx(0)
+ self.get_key()
+ def disp_menu(self, keygrab=True):
+ """
+ Display a menu once the end of the deck has been reached, offering
+ multiple options on how to continue.
+ """
-def disp_card(stdscr, stack, headers, obj):
- stdscr.clear()
- side_title = headers[obj.getSide()]
- stdscr.addstr(side_title + "\n")
- for i in range(len(side_title)):
- stdscr.addstr("=")
- stdscr.addstr("\n" + str(stack[obj.getIdx()][obj.getSide()]))
+ self.win.addstr("LIGHTCARDS MENU", curses.color_pair(1) +
+ curses.A_BOLD)
+ self.win.hline(1, 0, curses.ACS_HLINE, 15)
+ self.win.addstr(2, 0, "[y]: reset stack to original state\n" +
+ "[z]: shuffle stack\n" +
+ "[f]: flip all cards in stack\n" +
+ "[t]: reverse stack order\n" +
+ "[u]: unstar all\n" +
+ "[d]: star all\n" +
+ "[s]: update stack to include starred only\n\n" +
+ "[r]: restart\n" +
+ "[q]: back")
+ if keygrab:
+ self.menu_grab()
- (mlines, mcols) = stdscr.getmaxyx()
- mlines -= 1
- mcols -= 5
+ def wrap_width(self):
+ (mlines, mcols) = self.win.getmaxyx()
+ wrap_width = mcols
+ if mcols > 80:
+ wrap_width = 80
+ return wrap_width
- try:
- stdscr.insch(mlines, mcols, str(obj.getIdx() + 1))
- stdscr.insch(mlines, mcols+1, '-')
- if obj.getSide() == 0:
- stdscr.insch(mlines, mcols+2, '1')
+ def disp_card(self):
+ """
+ Display the contents of the card
+ Shows a header, a horizontal line, and the contents of the current
+ side.
+ """
+ self.win.clear()
+ (mlines, mcols) = self.win.getmaxyx()
+ if self.obj.getIdx() == len(self.stack):
+ self.disp_menu()
else:
- stdscr.insch(mlines, mcols+2, '2')
- stdscr.insch(mlines, mcols+3, '/')
- stdscr.insch(mlines, mcols+4, str(len(stack)))
- except:
- pass
-
-def get_key(stdscr, stack, headers):
- idx = Status()
- curses.curs_set(0)
- disp_card(stdscr, stack, headers, idx)
-
- while True:
- key = stdscr.getkey()
- try:
- if key == "q" or key == os.linesep:
- exit(0)
- elif key in ["l", "KEY_LEFT"]:
- idx.forward(stack)
- idx.setSide(0)
- disp_card(stdscr, stack, headers, idx)
- elif key in ["h", "KEY_RIGHT"]:
- idx.back()
- idx.setSide(0)
- disp_card(stdscr, stack, headers, idx)
+ # If on the back of the card, show the content of the front side in
+ # the header
+ num_done = str(self.obj.getIdx() +
+ 1).zfill(len(str(len(self.stack))))
+ if self.obj.getSide() == 0:
+ top = num_done + " | " + self.headers[self.obj.getSide()]
+ else:
+ top = num_done + " | " + self.headers[self.obj.getSide()] + \
+ " | \"" + str(self.stack[self.obj.getIdx()][0]) + "\""
+ header_width = mcols
+ if mcols > 80:
+ header_width = 80
+
+ self.win.addstr(textwrap.shorten(top, width=header_width,
+ placeholder="…"), curses.A_BOLD)
+
+ # Add horizontal line
+ lin_width = header_width
+ if len(top) < header_width:
+ lin_width = len(top)
+ self.win.hline(1, 0, curses.ACS_HLINE, lin_width)
+
+ # Show current side
+ self.win.addstr(2, 0, textwrap.fill(
+ self.stack[self.obj.getIdx()][self.obj.getSide()],
+ width=self.wrap_width()))
+ self.disp_bar()
+
+ def disp_help(self):
+ """Display help screen"""
+ self.win.clear()
+ self.win.addstr("LIGHTCARDS HELP", curses.color_pair(1) +
+ curses.A_BOLD)
+ self.win.hline(1, 0, curses.ACS_HLINE, 15)
+ self.win.addstr(2, 0, textwrap.fill(
+ "Welcome to lightcards. Here are some keybindings to get you " +
+ "started:", width=self.wrap_width()) +
+ "\n\nh, left previous card\n" +
+ "l, right next card\n" +
+ "j, k, up, down flip card\n" +
+ "i, / star card\n" +
+ "0, ^, home go to the start of the deck\n" +
+ "$, end go to the end of the deck\n" +
+ "H, ? open this screen\n" +
+ "e open the input file in $EDITOR\n" +
+ "m open the control menu\n\n" +
+ textwrap.fill(
+ "More information can be found in the man page, " +
+ "or by running `lightcards --help`.",
+ width=self.wrap_width()) +
+ "\n\nPress [q], [H], or [?] to go back.")
+ while True:
+ key = self.win.getkey()
+ if key in ["q", "H", "?"]:
+ self.get_key()
+
+ def get_key(self):
+ """
+ Display a card and wait for the input.
+ Used as a general way of getting back into the card flow from a menu
+ """
+
+ self.disp_card()
+ while True:
+ key = self.win.getkey()
+ if key == "q":
+ sys.exit(0)
+ elif key in ["l", "KEY_RIGHT"]:
+ self.obj.forward(self.stack)
+ self.obj.setSide(0)
+ self.disp_card()
+ elif key in ["h", "KEY_LEFT"]:
+ self.obj.back()
+ self.obj.setSide(0)
+ self.disp_card()
elif key in ["j", "k", "KEY_UP", "KEY_DOWN"]:
- idx.flip()
- disp_card(stdscr, stack, headers, idx)
- except Exception:
- pass
+ self.obj.flip()
+ self.disp_card()
+ elif key in ["i", "/"]:
+ self.stack[self.obj.getIdx()].toggleStar()
+ self.disp_card()
+ elif key in ["0", "^", "KEY_HOME"]:
+ self.obj.setIdx(0)
+ self.obj.setSide(0)
+ self.disp_card()
+ elif key in ["$", "KEY_END"]:
+ self.obj.setIdx(len(self.stack) - 1)
+ self.obj.setSide(0)
+ self.disp_card()
+ elif key in ["H", "?"]:
+ self.disp_help()
+ elif key == "m":
+ self.win.clear()
+ self.disp_menu()
+ elif key == "e":
+ (self.headers, self.stack) = lightcards.reparse()
+ self.get_key()
projects / lightcards.git / blobdiff