Iterator.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
#Autor: Erickson Silva
#Email: <erickson.silva@lavid.ufpb.br> <ericksonsilva@live.com>
#LAViD - Laboratório de Aplicações de Vídeo Digital
class Iterator(object):
# inicializacao das variaveis
def __init__(self):
self.count = -1
def load(self, lista):
self.reset()
self.__list = list(lista);
self.size = len(lista)
def reset(self):
self.count = -1
def getSize(self):
return self.size
def getCount(self):
return self.count
def getToken(self, i=None):
if(i != None): return self.__list[self.count+(i)]
return self.__list[self.count]
def getAtualW(self):
return self.getToken(0)[0].upper()
def getAtualT(self):
return self.getToken(0)[1]
def getProxW(self):
return self.getToken("+")[0].upper()
def getProxT(self):
return self.getToken("+")[1]
def getAntW(self):
return self.getToken("-")[0].upper()
def getAntT(self):
return self.getToken("-")[1]
def getinterval(self, n):
if self.count+n > self.size: raise IndexError
return self.__list[self.count:self.count+n]
def hasNext(self):
if(self.count < self.size-1):
self.count += 1
return True
return False