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# Copyright 2010 Le Coz Florent <louiz@louiz.org>
#
# This file is part of Poezio.
#
# Poezio is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3 of the License.
#
# Poezio is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Poezio. If not, see <http://www.gnu.org/licenses/>.
"""
Define the TextBuffer class
"""
import logging
log = logging.getLogger(__name__)
from message import Message
from datetime import datetime
import theme
MESSAGE_NB_LIMIT = 16384
class TextBuffer(object):
"""
This class just keep trace of messages, in a list with various
informations and attributes.
"""
def __init__(self):
self.messages = [] # Message objects
self.windows = [] # we keep track of one or more windows
# so we can pass the new messages to them, as they are added, so
# they (the windows) can built the lines from the new message
def add_window(self, win):
self.windows.append(win)
def add_message(self, txt, time=None, nickname=None, colorized=False):
color = theme.COLOR_NORMAL_TEXT
user = None
time = time or datetime.now()
# if self.pos: # avoid scrolling of one line when one line is received
# self.pos += 1
msg = Message(txt, time, nickname, user, color, colorized)
self.messages.append(msg)
while len(self.messages) > MESSAGE_NB_LIMIT:
self.messages.pop(0)
for window in self.windows: # make the associated windows
# build the lines from the new message
nb = window.build_new_message(msg)
if window.pos != 0:
window.scroll_up(nb)
def remove_line_separator(self):
"""
Remove the line separator
"""
if None in self.messages:
self.messages.remove(None)
def add_line_separator(self):
"""
add a line separator at the end of messages list
"""
if None not in self.messages:
self.messages.append(None)
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