127 lines
5.6 KiB
Python
127 lines
5.6 KiB
Python
from enum import Enum
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class ReturnCode(Enum):
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GOOD = -101
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EXIT_CODE = -100
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SET_BASIC_MODE = -99
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SET_COMMAND_MODE = -98
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SET_EDIT_MODE = -97
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class VimModel:
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def __init__(self):
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self.displayBuffer = [] # буфер для хранения всех строк
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self.currentLine = 0 # текущий индекс строки
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self.currentCol = 0 # текущий индекс колонки
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self.scrollY = 0 # вертикальная прокрутка
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self.scrollX = 0 # горизонтальная прокрутка
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self.file_path = "" # путь к файлу
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self.mode = ""
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self.commandBuffer = [] # буффер для команды
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def ModeBar(self) -> str:
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modeBar = f"MODE: {self.mode} | FILE: {self.file_path} | LINE: {self.currentLine+1}/{len(self.displayBuffer)}"
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if self.mode == "COMMAND":
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modeBar += f" | COMMAND BUFFER: {''.join(self.commandBuffer)}"
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return modeBar
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def Scroll(self, displayLines: int, displayCols: int) -> None:
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if self.currentLine < self.scrollY:
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self.scrollY = self.currentLine
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elif self.currentLine >= self.scrollY + displayLines - 1:
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self.scrollY = self.currentLine - displayLines + 2
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if self.currentCol < self.scrollX:
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self.scrollX = self.currentCol
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elif self.currentCol >= self.scrollX + displayCols:
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self.scrollX = self.currentCol - displayCols + 1
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def InsertCommandSymbol(self, symbolCode: int) -> None:
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self.commandBuffer.append(chr(symbolCode))
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def InsertSymbol(self, symbolCode: int) -> None:
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if self.currentCol <= len(self.displayBuffer[self.currentLine]): # проверяем, не превышает ли индекс колонки длину строки
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self.displayBuffer[self.currentLine].insert(self.currentCol, chr(symbolCode))
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self.currentCol += 1
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def EnterCommand(self):
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cmd = ''.join(self.commandBuffer)
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self.commandBuffer.clear()
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match cmd:
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case "$":
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self.currentCol = len(self.displayBuffer[self.currentLine])
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return ReturnCode.GOOD
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case "q":
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return ReturnCode.EXIT_CODE
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case "S":
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self.currentCol = 0
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self.displayBuffer[self.currentLine] = []
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return ReturnCode.SET_EDIT_MODE
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def Enter(self) -> None:
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# Разделяем текущую строку на две части
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new_line = self.displayBuffer[self.currentLine][self.currentCol:]
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self.displayBuffer[self.currentLine] = self.displayBuffer[self.currentLine][:self.currentCol]
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self.currentLine += 1 # Переходим на следующую строку
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self.displayBuffer.insert(self.currentLine, new_line) # Вставляем новую строку
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self.currentCol = 0 # Сбрасываем индекс колонки
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def BackspaceCommand(self) -> None:
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if len(self.commandBuffer) > 0:
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self.commandBuffer.pop()
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def Backspace(self) -> None:
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if self.currentCol > 0: # Если символ существует в текущей строке
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self.currentCol -= 1
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del self.displayBuffer[self.currentLine][self.currentCol] # Удаляем символ
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elif self.currentLine > 0: # Если текущая строка не первая
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# Объединяем текущую строку с предыдущей
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prev_line_length = len(self.displayBuffer[self.currentLine - 1])
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self.displayBuffer[self.currentLine - 1].extend(self.displayBuffer[self.currentLine])
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del self.displayBuffer[self.currentLine]
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self.currentLine -= 1
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self.currentCol = prev_line_length # Переходим в конец предыдущей строки
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def MoveLeft(self) -> None:
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if self.currentCol > 0:
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self.currentCol -= 1
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elif self.currentLine > 0:
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self.currentLine -= 1
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self.currentCol = len(self.displayBuffer[self.currentLine])
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def MoveRight(self) -> None:
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if self.currentCol < len(self.displayBuffer[self.currentLine]):
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self.currentCol += 1
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elif self.currentLine < len(self.displayBuffer) - 1:
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self.currentLine += 1
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self.currentCol = 0
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def MoveUp(self) -> None:
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if self.currentLine > 0:
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self.currentLine -= 1
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self.currentCol = min(self.currentCol, len(self.displayBuffer[self.currentLine]))
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def MoveDown(self) -> None:
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if self.currentLine < len(self.displayBuffer) - 1:
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self.currentLine += 1
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self.currentCol = min(self.currentCol, len(self.displayBuffer[self.currentLine]))
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def LoadFile(self, file_path) -> None:
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"""Загрузка файла для редактирования"""
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self.file_path = file_path
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try:
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with open(file_path, "r") as file:
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self.displayBuffer = [list(line.rstrip('\n')) for line in file.readlines()]
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except FileNotFoundError:
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print(f"File {file_path} not found. Starting with empty buffer.")
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self.displayBuffer = []
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def SaveFile(self) -> None:
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"""Сохранение файла"""
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try:
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with open(self.file_path, "w") as file:
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for line in self.displayBuffer:
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file.write(''.join(line) + '\n')
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print(f"File {self.file_path} saved successfully.")
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except Exception as e:
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print(f"Error saving file: {str(e)}")
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