def _setLine(self, line):
term.moveBack(self._position)
term.write(' ' * len(self._line))
term.moveBack(len(self._line))
# term.eraseLine()
term.write(''.join(line))
self._line = line
self._position = len(line)
def _paste(self, text):
tail = self._line[self._position:]
for c in text:
self._line.insert(self._position, c)
self._position += 1
term.write(text)
term.write(''.join(tail))
term.moveBack(len(tail))
def _onBackspace(self):
if self._position > 0:
self._position -= 1
del self._line[self._position]
term.moveBack(1)
self._line.append(' ')
self._showTail()
del self._line[-1]
def _paste(self, text):
tail = self._line[self._position:]
for c in text:
self._line.insert(self._position, c)
self._position += 1
term.write(text)
term.write(''.join(tail))
term.moveBack(len(tail))
def _onBackspace(self):
if self._position > 0:
self._position -= 1
del self._line[self._position]
term.moveBack(1)
self._line.append(' ')
self._showTail()
del self._line[-1]
def _showTail(self, retainPosition=True):
"""
reprint everything that should be after the cursor
"""
strLine = self._getLineStr()
toWrite = strLine[self._position:]
term.write(toWrite)
if retainPosition:
term.moveBack(len(toWrite))
def _showTail(self, retainPosition=True):
"""
reprint everything that should be after the cursor
"""
# term.savePosition()
strLine = self._getLineStr()
toWrite = strLine[self._position:]
term.write(toWrite)
if retainPosition:
term.moveBack(len(toWrite))
def _paste(self, text): # 将用户输入的正常字符添加到_line中，并刷新term显示
# term.savePosition()
tail = self._line[self._position:] #初始 _line、_position均为 0
for c in text: #用户每敲击一个字符，添加到_line中
self._line.insert(self._position, c)
self._position += 1
term.write(text)
term.write(''.join(tail))
# term.restorePosition()
term.moveBack(len(tail))
def _onBackspace(self):
if self._position > 0:
self._position -= 1
del self._line[self._position]
term.moveBack(1)
# lenToErase = len(self._line[:self._position])+1
# term.write (' ' * lenToErase)
# term.moveBack (lenToErase)
# term.eraseLine()
self._line.append(' ')
self._showTail()
del self._line[-1]
def _moveDelta(self, steps):
if steps:
if steps > 0:
self._moveForward(steps)
else:
term.moveBack(-steps)
def _onLeft(self):
if self._position > 0:
self._position -= 1
term.moveBack()
else:
term.bell()
def _toLineStart(self):
term.moveBack(self._position)
self._position = 0
