squirrel-battle/dungeonbattle/display/menudisplay.py

from dungeonbattle.menus import Menu
from typing import Any
import curses

class MenuDisplay:
    position: int
    
    def __init__(self, menu : Menu, screen: Any, height : int, width : int, topleftx: int, toplefty: int) :
        self.screen = screen
        self.values = menu.values
        self.width = width
        self.height = height
        self.trueheight = len(menu.values)
        self.truewidth = max(map(len,self.values))
        self.topleftx = topleftx
        self.toplefty = toplefty

        #Menu values are printed in pad
        self.pad = curses.newpad(self.trueheight,self.truewidth+1)
        for i in range(self.trueheight-1) :
            self.pad.addstr(i,0," " + self.values[i])

        #Menu box
        self.menubox = curses.newpad(self.height,self.width)
        self.menubox.addstr(0,0,"┏"+"━"*(self.width-2)+"┓")
        for i in range(1,self.height-2) :
            self.menubox.addstr(i,0,"┃"+" "*(self.width-2)+"┃")
        self.menubox.addstr(self.height-2, 0, "┗"+"━"*(self.width-2)+"┛")
        
    def update_pad(self) -> None:
        for i in range(self.trueheight) :
            self.pad.addstr(i,0," ")
        self.pad.addstr(self.position,0,">") #set a marker on the selected line

    def refresh(self, position : int) -> None:
        self.position = position
        if self.height-2>=position-1 :
            cornery = 0
        elif self.height-2 >= self.trueheight-position :
            cornery = self.trueheight-self.height+2
            
        self.menubox.refresh(0, 0, self.toplefty, self.topleftx,
                          self.height + self.toplefty,
                         self.width + self.topleftx)
        self.update_pad(position)
        self.pad.refresh(cornery, 0, self.toplefty+1, self.topleftx+1,
                          self.height-2 + self.toplefty,
                         self.width-2 + self.topleftx)