def __init__(self, scr):
self.row = 0
self.col = 0
self._saved = Stack()
self.adjust(scr)
def __init__(self, scr):
self.row = 0
self.col = 0
self._saved = Stack()
self.adjust(scr)
class Cursor(object):
def __init__(self, scr):
self.row = 0
self.col = 0
self._saved = Stack()
self.adjust(scr)
def __call__(self):
return self.row, self.col
def __str__(self):
return "(%d, %d)"% (self.row, self.col)
def adjust(self, scr):
self.rows = scr.rows-1
self.cols = scr.cols-1
self.constrain()
def constrain(self):
self.row = constrain(self.row, 0, self.rows)
self.col = constrain(self.col, 0, self.cols)
def save(self):
self._saved.push((self.row, self.col))
def restore(self):
try:
self.row, self.col = self._saved.pop()
except IndexError: # no prior save
self.row, self.col = 0,0
def reset(self, r=0, c=0):
self.row = r
self.col = c
home = reset
def set(self, r=None, c=None):
if r is not None:
self.row = r
if c is not None:
self.col = c
def up(self, count=1):
if self.row == 0:
return 1
else:
self.row = constrain(self.row - count, 0, self.rows)
return 0
def down(self, count=1):
if self.row == self.rows:
return 1
else:
self.row = constrain(self.row + count, 0, self.rows)
return 0
def back(self, count=1):
if self.col == 0:
return 1
else:
self.col = constrain(self.col - count, 0, self.cols)
return 0
def forward(self, count=1):
if self.col == self.cols:
return 1
else:
self.col = constrain(self.col + count, 0, self.cols)
return 0
class Cursor(object):
def __init__(self, scr):
self.row = 0
self.col = 0
self._saved = Stack()
self.adjust(scr)
def __call__(self):
return self.row, self.col
def __str__(self):
return "(%d, %d)"% (self.row, self.col)
def adjust(self, scr):
self.rows = scr.rows-1
self.cols = scr.cols-1
self.constrain()
def constrain(self):
self.row = constrain(self.row, 0, self.rows)
self.col = constrain(self.col, 0, self.cols)
def save(self):
self._saved.push((self.row, self.col))
def restore(self):
try:
self.row, self.col = self._saved.pop()
except IndexError: # no prior save
self.row, self.col = 0,0
def reset(self, r=0, c=0):
self.row = r
self.col = c
home = reset
def set(self, r=None, c=None):
if r is not None:
self.row = r
if c is not None:
self.col = c
def up(self, count=1):
if self.row == 0:
return 1
else:
self.row = constrain(self.row - count, 0, self.rows)
return 0
def down(self, count=1):
if self.row == self.rows:
return 1
else:
self.row = constrain(self.row + count, 0, self.rows)
return 0
def back(self, count=1):
if self.col == 0:
return 1
else:
self.col = constrain(self.col - count, 0, self.cols)
return 0
def forward(self, count=1):
if self.col == self.cols:
return 1
else:
self.col = constrain(self.col + count, 0, self.cols)
return 0
