VIM-like-text-editor/mvc/views.py

85 lines
2.9 KiB
Python

import curses
class CursesAdapter:
def __init__(self) -> None:
self.KEY_LEFT = curses.KEY_LEFT
self.KEY_RIGHT = curses.KEY_RIGHT
self.KEY_UP = curses.KEY_UP
self.KEY_DOWN = curses.KEY_DOWN
self.KEY_BACKSPACE_1 = 127
self.KEY_BACKSPACE_2 = 8
self.KEY_ENTER = 10
self.KEY_CTRL_S = 19
self.KEY_ESCAPE = 27
self.screen = curses.initscr()
self.screen.keypad(True)
self.cols = curses.COLS
self.lines = curses.LINES
# init color system
curses.start_color()
# green color pair
curses.init_pair(1, curses.COLOR_MAGENTA, curses.COLOR_BLACK)
curses.curs_set(1) # Make cursor visible
def Refresh(self) -> None:
"""Apply changes"""
self.screen.refresh()
def Cleanup(self) -> None:
curses.endwin()
def SetCursor(self, x: int, y: int):
"""set cursor position (x, y)"""
self.screen.move(x, y)
def SetChar(self, x: int, y: int, code: int):
"""set char position (x, y)"""
self.screen.addch(x, y, code)
def SetString(self, x: int, y: int, data: str):
"""set string begin position (x, y)"""
self.screen.addstr(x, y, data)
def GetChar(self) -> int:
"""Wait users input"""
return self.screen.getch()
def Render(self,
displayBuffer: list[list[str]],
currentLine: int, currentCol: int,
scrollX: int, scrollY: int,
file_path: str):
"""Отрисовка текущего состояния"""
self.screen.clear()
# display visible part of text
for i in range(self.lines - 1):
if i + scrollY < len(displayBuffer):
line = ''.join(displayBuffer[i + scrollY])
if scrollX < len(line):
self.SetString(i, 0, line[scrollX:scrollX + self.cols])
else:
self.SetString(i, 0, '')
else:
self.SetString(i, 0, '')
# update mode bar
self.EditModeBar(currentLine, len(displayBuffer), file_path)
# update cursor
self.SetCursor(currentLine - scrollY, currentCol - scrollX)
self.Refresh()
def EditModeBar(self, currentLine, totalLines, fileName):
"""Print edit mode information panel"""
self.screen.addstr(self.lines - 1, 0, ' ' * (self.cols - 1)) # Очистка строки
self.screen.addstr(self.lines - 1, 0, "FILE: ")
self.screen.addstr(fileName, curses.color_pair(1)) # Имя файла
self.screen.addstr(" | MODE:")
self.screen.addstr(" EDIT", curses.color_pair(1))
self.screen.addstr(" | LINE: ")
self.screen.addstr(str(currentLine + 1), curses.color_pair(1))
self.screen.addstr("/")
self.screen.addstr(str(totalLines), curses.color_pair(1)) # Общее количество строк