60 lines
2.1 KiB
Python
60 lines
2.1 KiB
Python
# Copyright 2010-2011 Florent Le Coz <louiz@louiz.org>
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#
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# This file is part of Poezio.
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#
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# Poezio is free software: you can redistribute it and/or modify
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# it under the terms of the zlib license. See the COPYING file.
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"""
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Define the TextBuffer class
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"""
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import logging
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log = logging.getLogger(__name__)
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import collections
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from datetime import datetime
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from config import config
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Message = collections.namedtuple('Message', 'txt nick_color time str_time nickname user')
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class TextBuffer(object):
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"""
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This class just keep trace of messages, in a list with various
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informations and attributes.
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"""
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def __init__(self, messages_nb_limit=config.get('max_messages_in_memory', 2048)):
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self.messages_nb_limit = messages_nb_limit
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self.messages = [] # Message objects
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self.windows = [] # we keep track of one or more windows
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# so we can pass the new messages to them, as they are added, so
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# they (the windows) can build the lines from the new message
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def add_window(self, win):
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self.windows.append(win)
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def add_message(self, txt, time=None, nickname=None, nick_color=None, history=None):
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time = time or datetime.now()
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msg = Message(txt='%s\x19o'%(txt.replace('\t', ' '),), nick_color=nick_color,
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time=time, str_time=time.strftime("%Y-%m-%d %H:%M:%S")\
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if history else time.strftime("%H:%M:%S"),\
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nickname=nickname, user=None)
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self.messages.append(msg)
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while len(self.messages) > self.messages_nb_limit:
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self.messages.pop(0)
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ret_val = None
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for window in self.windows: # make the associated windows
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# build the lines from the new message
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nb = window.build_new_message(msg)
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if ret_val is None:
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ret_val = nb
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if window.pos != 0:
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window.scroll_up(nb)
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return ret_val or 1
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def del_window(self, win):
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self.windows.remove(win)
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def __del__(self):
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log.debug('** Deleting %s messages from textbuffer' % (len(self.messages)))
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