Python-curses でスクロール メニューを作成する方法はありますか? sqlite3 のクエリから取得したレコードのリストがあり、それらをボックスに表示する必要がありますが、最大行数を超えています。curses をクラッシュさせずにすべてを表示する小さなメニューを作成できますか?
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9593 次
4 に答える
8
このコードを使用すると、文字列のリストからボックス内に小さなメニューを作成できます。
このコードを使用して、sqlite クエリまたは csv ファイルから文字列のリストを取得することもできます。
メニューの最大行数を編集するには、編集する必要がありますmax_row。
Enter キーを押すと、プログラムは選択された文字列の値とその位置を出力します。
from __future__ import division #You don't need this in Python3
import curses
from math import *
screen = curses.initscr()
curses.noecho()
curses.cbreak()
curses.start_color()
screen.keypad( 1 )
curses.init_pair(1,curses.COLOR_BLACK, curses.COLOR_CYAN)
highlightText = curses.color_pair( 1 )
normalText = curses.A_NORMAL
screen.border( 0 )
curses.curs_set( 0 )
max_row = 10 #max number of rows
box = curses.newwin( max_row + 2, 64, 1, 1 )
box.box()
strings = [ "a", "b", "c", "d", "e", "f", "g", "h", "i", "l", "m", "n" ] #list of strings
row_num = len( strings )
pages = int( ceil( row_num / max_row ) )
position = 1
page = 1
for i in range( 1, max_row + 1 ):
if row_num == 0:
box.addstr( 1, 1, "There aren't strings", highlightText )
else:
if (i == position):
box.addstr( i, 2, str( i ) + " - " + strings[ i - 1 ], highlightText )
else:
box.addstr( i, 2, str( i ) + " - " + strings[ i - 1 ], normalText )
if i == row_num:
break
screen.refresh()
box.refresh()
x = screen.getch()
while x != 27:
if x == curses.KEY_DOWN:
if page == 1:
if position < i:
position = position + 1
else:
if pages > 1:
page = page + 1
position = 1 + ( max_row * ( page - 1 ) )
elif page == pages:
if position < row_num:
position = position + 1
else:
if position < max_row + ( max_row * ( page - 1 ) ):
position = position + 1
else:
page = page + 1
position = 1 + ( max_row * ( page - 1 ) )
if x == curses.KEY_UP:
if page == 1:
if position > 1:
position = position - 1
else:
if position > ( 1 + ( max_row * ( page - 1 ) ) ):
position = position - 1
else:
page = page - 1
position = max_row + ( max_row * ( page - 1 ) )
if x == curses.KEY_LEFT:
if page > 1:
page = page - 1
position = 1 + ( max_row * ( page - 1 ) )
if x == curses.KEY_RIGHT:
if page < pages:
page = page + 1
position = ( 1 + ( max_row * ( page - 1 ) ) )
if x == ord( "\n" ) and row_num != 0:
screen.erase()
screen.border( 0 )
screen.addstr( 14, 3, "YOU HAVE PRESSED '" + strings[ position - 1 ] + "' ON POSITION " + str( position ) )
box.erase()
screen.border( 0 )
box.border( 0 )
for i in range( 1 + ( max_row * ( page - 1 ) ), max_row + 1 + ( max_row * ( page - 1 ) ) ):
if row_num == 0:
box.addstr( 1, 1, "There aren't strings", highlightText )
else:
if ( i + ( max_row * ( page - 1 ) ) == position + ( max_row * ( page - 1 ) ) ):
box.addstr( i - ( max_row * ( page - 1 ) ), 2, str( i ) + " - " + strings[ i - 1 ], highlightText )
else:
box.addstr( i - ( max_row * ( page - 1 ) ), 2, str( i ) + " - " + strings[ i - 1 ], normalText )
if i == row_num:
break
screen.refresh()
box.refresh()
x = screen.getch()
curses.endwin()
exit()
于 2015-06-14T11:28:09.230 に答える
0
このスケルトンを使用しますが、page-up / -down を追加して、10 個のグループでエントリを表示します。
python2 と python3 で非常にクラッシュプルーフです!
#!/usr/bin/env python2
# -*- coding: UTF-8 -*-
#kate: syntax Python ;
# a skeleton menu with python2 & py3 https://paste.cutelyst.org/
# https://0bin.net/paste/yauebNkDNbwgZqwy#a2YfWpSTHh0RV-0Yfz3FIypudIU6oi4DWvV9EGXo1Pv
'''function 1 on F1 1 and NUM-1'''
def funkt1():
return 1
def funkt2():
return 2
def funkt3():
return 3
def funkt4():
return 4
def funkt5():
return 5
def funkt6():
return 6
def funkt7():
return 7
def funkt8():
return 8
def funkt9():
return 9
import sys,os
import curses
global menuE
global e
global noofmes
global keychar
e = 0
menuE = 1 # active entry
noofmes = 10 # number of menu entries +1
keychar = " " # like 1 or 2 ...
class switch(object):
value = None
def __new__(class_, value):
class_.value = value
return True
def case(*args):
return any((arg == switch.value for arg in args))
def draw_menu(stdscr):
global menuE
global e
global noofmes
global keychar
k = 0
cursor_x = 0
cursor_y = 0
# Clear and refresh the screen for a blank canvas
stdscr.clear()
stdscr.refresh()
# Start colors in curses
curses.start_color()
curses.init_pair(1, curses.COLOR_CYAN, curses.COLOR_BLACK)
curses.init_pair(2, curses.COLOR_RED, curses.COLOR_BLACK)
curses.init_pair(3, curses.COLOR_BLACK, curses.COLOR_WHITE)
# Loop where k is the last character pressed
while (k != ord('q')):
# Initialization
stdscr.clear()
height, width = stdscr.getmaxyx()
ki = int(k)
try: keychar = chr(k)
except: keychar = 0
callfunc = False
while switch(k):
if case(49, 265, 360): # allows keys 1 or NUM-1 or F1 to be Entry1 for 0..9
menuE = 1
break
if case(50, 266 ): # 258 mouse u
menuE = 2
break
if case(51, 267, 338):
menuE = 3
break
if case(52, 268 ): #260
menuE = 4
break
if case(53, 269, 69):
menuE = 5
break
if case(54, 270 ): #261
menuE = 6
break
if case(55, 271, 262):
menuE = 7
break
if case(56, 272 ): #259 mouse d
menuE = 8
break
if case(57, 273, 339):
menuE = 9
break
if case(10, 32 , 83 ): # SPACE , ENTER , 83 mouse middle
callfunc = True
break
pass
break
if callfunc:
if menuE == 1: e = funkt1()
elif menuE == 2: e = funkt2()
elif menuE == 3: e = funkt3()
elif menuE == 4: e = funkt4()
elif menuE == 5: e = funkt5()
elif menuE == 6: e = funkt6()
elif menuE == 7: e = funkt7()
elif menuE == 8: e = funkt8()
elif menuE == 9: e = funkt9()
if k == curses.KEY_DOWN:
cursor_y = cursor_y + 1
menuE = (menuE + 1) % noofmes
elif k == curses.KEY_UP:
cursor_y = cursor_y - 1
menuE = (menuE - 1) % noofmes
elif k == curses.KEY_RIGHT:
cursor_x = cursor_x + 1
elif k == curses.KEY_LEFT:
cursor_x = cursor_x - 1
cursor_x = max(0, cursor_x)
cursor_x = min(width-1, cursor_x)
cursor_y = max(0, cursor_y)
cursor_y = min(height-1, cursor_y)
# Declaration of strings
title = "Python2 , py3 menu demo with lib ´curses´ "[:width-1]
subtitle = "because py2 will never die!"[:width-1]
keystr = str(e) + " <-- funkt " + "Last key pressed: {}".format(k)[:width-1]
statusbarstr = "Press 'q' to exit | STATUS BAR | Pos: {}, {}".format(cursor_x, cursor_y)
if k == 0:
keystr = "No key press detected..."[:width-1]
# Centering calculations
start_x_title = int(( width // 2) - (len(title) // 2) - len(title) % 2)
start_x_subtitle = int(( width // 2) - (len(subtitle) // 2) - len(subtitle) % 2)
start_x_keystr = int(( width // 2) - (len(keystr) // 2) - len(keystr) % 2)
start_y = int(( height // 2) - 2)
# Rendering some text
whstr = "Width: {}, Height: {}".format(width, height)
stdscr.addstr(0, 0, whstr, curses.color_pair(1))
# Render status bar
stdscr.attron(curses.color_pair(3))
stdscr.addstr(height-1, 0, statusbarstr)
stdscr.addstr(height-1, len(statusbarstr), " " * (width - len(statusbarstr) - 1))
stdscr.attroff(curses.color_pair(3))
# Turning on attributes for title
stdscr.attron(curses.color_pair(2))
stdscr.attron(curses.A_BOLD)
# Rendering title
stdscr.addstr(start_y -6, start_x_title, title)
# Turning off attributes for title
stdscr.attroff(curses.color_pair(2))
stdscr.attroff(curses.A_BOLD)
# Print rest of text
stdscr.addstr( start_y - 4, start_x_subtitle, subtitle)
#stdscr.addstr(start_y - 3, (width // 2) - 2, '-' * 4)
stdscr.addstr( start_y - 2, start_x_keystr, keystr)
# menu
stdscr.addstr(start_y + 0, start_x_subtitle, "~~~ Menu ~~~")
if menuE == 1 :
stdscr.attron( curses.A_BOLD)
else : stdscr.attroff(curses.A_BOLD)
stdscr.addstr(start_y + 1, start_x_subtitle, "1 Entry1")
if menuE == 2 :
stdscr.attron( curses.A_BOLD)
else : stdscr.attroff(curses.A_BOLD)
stdscr.addstr(start_y + 2, start_x_subtitle, "2 Entry2")
if menuE == 3 :
stdscr.attron( curses.A_BOLD)
else : stdscr.attroff(curses.A_BOLD)
stdscr.addstr(start_y + 3 , start_x_subtitle, "3 Entry3")
if menuE == 4 :
stdscr.attron( curses.A_BOLD)
else : stdscr.attroff(curses.A_BOLD)
stdscr.addstr(start_y + 4 , start_x_subtitle, "4 Entry4")
if menuE == 5 :
stdscr.attron( curses.A_BOLD)
else : stdscr.attroff(curses.A_BOLD)
stdscr.addstr(start_y + 5 , start_x_subtitle, "5 Entry5")
if menuE == 6 :
stdscr.attron( curses.A_BOLD)
else : stdscr.attroff(curses.A_BOLD)
stdscr.addstr(start_y + 6 , start_x_subtitle, "6 Entry6")
if menuE == 7 :
stdscr.attron( curses.A_BOLD)
else : stdscr.attroff(curses.A_BOLD)
stdscr.addstr(start_y + 7 , start_x_subtitle, "7 Entry7")
if menuE == 8 :
stdscr.attron( curses.A_BOLD)
else : stdscr.attroff(curses.A_BOLD)
stdscr.addstr(start_y + 8 , start_x_subtitle, "8 Entry8")
if menuE == 9 :
stdscr.attron( curses.A_BOLD)
else : stdscr.attroff(curses.A_BOLD)
stdscr.addstr(start_y + 9 , start_x_subtitle, "9 Entry9")
stdscr.move(cursor_y, cursor_x)
# Refresh the screen
stdscr.refresh()
# Wait for next input
k = stdscr.getch()
def main():
curses.wrapper(draw_menu)
if __name__ == "__main__":
main()
于 2019-11-15T23:44:47.967 に答える
0
https://github.com/wong2/pickを使用しました
>>> title = 'Please choose your favorite programming language (press SPACE to mark, ENTER to continue): '
>>> options = ['Java', 'JavaScript', 'Python', 'PHP', 'C++', 'Erlang', 'Haskell']
>>> pick(options, title, multi_select=True, min_selection_count=1)
端末ウィンドウ全体を占める ncurses ベースのピッカーを作成し、複数のオプションを選択できるようにします (オプションがすべてページに収まらない場合は、オプションをスクロールします)。ものを選択すると、値とそのインデックスが返されます。
[('Java', 0), ('C++', 4)]
于 2019-12-20T20:00:37.963 に答える