Displaying different strings based on input

Question

I've been trying to get this script to work as intended but have been having some issues in doing so. I'm trying to change the string displayed on screen depending on the variable pageCount, but have ran into 2 issues so far.

I would like the first string (page1) to be printed before the key stroke that getkey() is waiting for, but I can't seem to achieve this. I also cannot get the screen to refresh/clear properly when a new string is printed on screen.

What would the best method to fix these issues be?

from curses import wrapper


def main(stdscr):
# Clear screen


pageCount=0
#stdscr.addstr(str(pageCount))
stdscr.clear()
while True:

    key=stdscr.getkey()






    if key == "KEY_LEFT":

        pageCount=pageCount-1
    if key == "KEY_RIGHT":
        pageCount=pageCount+1

    if pageCount < 1:
        pageCount=10
    if pageCount > 10:
        pageCount=1

    if pageCount==1:
        stdscr.addstr("page 1")

    if pageCount==2:
        stdscr.addstr("page 2")

    if pageCount==3:
        stdscr.addstr("page 3")
    if pageCount==4:
        stdscr.addstr("page 4")
    if pageCount==5:
        stdscr.addstr("page 5")
    if pageCount==6:
        stdscr.addstr("page 6")
    if pageCount==7:
        stdscr.addstr("page 7")
    if pageCount==8:
        stdscr.addstr("page 8")
    if pageCount==9:
        stdscr.addstr("page 9")
    if pageCount==10:
        stdscr.addstr("page 10")

    stdscr.refresh()




wrapper(main)

score 0 · Answer 1 · answered Jun 23 '18 at 21:40

Just printing the name of the page before the getkey() should solve your problem. You can really simplify your code using your page as variable in your string to avoid that suite of ifs. Something like this?

from curses import wrapper

def main(stdscr):
    # Clear screen
    pageCount=1
    #stdscr.addstr(str(pageCount))
    stdscr.clear()
    while True:

        stdscr.addstr("page %d"%(pageCount))

        key=stdscr.getkey()
        if key == "KEY_LEFT":
            pageCount=pageCount-1
        if key == "KEY_RIGHT":
            pageCount=pageCount+1
        if pageCount < 1:
            pageCount=10
        if pageCount > 10:
            pageCount=1

        stdscr.refresh()

wrapper(main)

Displaying different strings based on input

1 Answers1