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from __future__ import annotations
import curses
from datetime import (
datetime,
date,
)
from functools import singledispatch
from math import ceil, log10
from typing import (
List,
Tuple,
TYPE_CHECKING,
)
from poezio import poopt
from poezio.theming import (
get_theme,
)
from poezio.ui.consts import (
FORMAT_CHAR,
)
from poezio.ui.funcs import (
truncate_nick,
parse_attrs,
)
from poezio.ui.types import (
BaseMessage,
Message,
StatusMessage,
XMLLog,
)
if TYPE_CHECKING:
from poezio.windows import Win
# msg is a reference to the corresponding Message object. text_start and
# text_end are the position delimiting the text in this line.
class Line:
__slots__ = ('msg', 'start_pos', 'end_pos', 'prepend')
def __init__(self, msg: BaseMessage, start_pos: int, end_pos: int, prepend: str) -> None:
self.msg = msg
self.start_pos = start_pos
self.end_pos = end_pos
self.prepend = prepend
def __repr__(self):
return '(%s, %s)' % (self.start_pos, self.end_pos)
LinePos = Tuple[int, int]
def generate_lines(lines: List[LinePos], msg: BaseMessage, default_color: str = '') -> List[Line]:
line_objects = []
attrs: List[str] = []
prepend = default_color if default_color else ''
for line in lines:
saved = Line(
msg=msg,
start_pos=line[0],
end_pos=line[1],
prepend=prepend)
attrs = parse_attrs(msg.txt[line[0]:line[1]], attrs)
if attrs:
prepend = FORMAT_CHAR + FORMAT_CHAR.join(attrs)
else:
if default_color:
prepend = default_color
else:
prepend = ''
line_objects.append(saved)
return line_objects
@singledispatch
def build_lines(msg: BaseMessage, width: int, timestamp: bool, nick_size: int = 10) -> List[Line]:
offset = msg.compute_offset(timestamp, nick_size)
lines = poopt.cut_text(msg.txt, width - offset - 1)
return generate_lines(lines, msg, default_color='')
@build_lines.register(type(None))
def build_separator(*args, **kwargs):
return [None]
@build_lines.register(Message)
def build_message(msg: Message, width: int, timestamp: bool, nick_size: int = 10) -> List[Line]:
"""
Build a list of lines from this message.
"""
txt = msg.txt
if not txt:
return []
offset = msg.compute_offset(timestamp, nick_size)
lines = poopt.cut_text(txt, width - offset - 1)
generated_lines = generate_lines(lines, msg, default_color='')
return generated_lines
@build_lines.register(StatusMessage)
def build_status(msg: StatusMessage, width: int, timestamp: bool, nick_size: int = 10) -> List[Line]:
msg.rebuild()
offset = msg.compute_offset(timestamp, nick_size)
lines = poopt.cut_text(msg.txt, width - offset - 1)
return generate_lines(lines, msg, default_color='')
@build_lines.register(XMLLog)
def build_xmllog(msg: XMLLog, width: int, timestamp: bool, nick_size: int = 10) -> List[Line]:
offset = msg.compute_offset(timestamp, nick_size)
lines = poopt.cut_text(msg.txt, width - offset - 1)
return generate_lines(lines, msg, default_color='')
@singledispatch
def write_pre(msg: BaseMessage, win: Win, with_timestamps: bool, nick_size: int) -> int:
"""Write the part before text (only the timestamp)"""
if with_timestamps:
return PreMessageHelpers.write_time(win, False, msg.time)
return 0
@write_pre.register(Message)
def write_pre_message(msg: Message, win: Win, with_timestamps: bool, nick_size: int) -> int:
"""Write the part before the body:
- timestamp (short or long)
- ack/nack
- nick (with a "* " for /me)
- LMC number if present
"""
offset = 0
if with_timestamps:
offset += PreMessageHelpers.write_time(win, msg.history, msg.time)
if not msg.nickname: # not a message, nothing to do afterwards
return offset
nick = truncate_nick(msg.nickname, nick_size)
offset += poopt.wcswidth(nick)
if msg.nick_color:
color = msg.nick_color
elif msg.user:
color = msg.user.color
else:
color = None
if msg.ack:
if msg.ack > 0:
offset += PreMessageHelpers.write_ack(win)
else:
offset += PreMessageHelpers.write_nack(win)
if msg.me:
with win.colored_text(color=get_theme().COLOR_ME_MESSAGE):
win.addstr('* ')
PreMessageHelpers.write_nickname(win, nick, color, msg.highlight)
offset += PreMessageHelpers.write_revisions(win, msg)
win.addstr(' ')
offset += 3
else:
PreMessageHelpers.write_nickname(win, nick, color, msg.highlight)
offset += PreMessageHelpers.write_revisions(win, msg)
win.addstr('> ')
offset += 2
return offset
@write_pre.register(XMLLog)
def write_pre_xmllog(msg: XMLLog, win: Win, with_timestamps: bool, nick_size: int) -> int:
"""Write the part before the stanza (timestamp + IN/OUT)"""
offset = 0
if with_timestamps:
offset += 1 + PreMessageHelpers.write_time(win, False, msg.time)
theme = get_theme()
if msg.incoming:
char = theme.CHAR_XML_IN
color = theme.COLOR_XML_IN
else:
char = theme.CHAR_XML_OUT
color = theme.COLOR_XML_OUT
nick = truncate_nick(char, nick_size)
offset += poopt.wcswidth(nick)
PreMessageHelpers.write_nickname(win, char, color)
win.addstr(' ')
return offset
class PreMessageHelpers:
@staticmethod
def write_revisions(buffer: Win, msg: Message) -> int:
if msg.revisions:
color = get_theme().COLOR_REVISIONS_MESSAGE
with buffer.colored_text(color=color):
buffer.addstr('%d' % msg.revisions)
return ceil(log10(msg.revisions + 1))
return 0
@staticmethod
def write_ack(buffer: Win) -> int:
theme = get_theme()
color = theme.COLOR_CHAR_ACK
with buffer.colored_text(color=color):
buffer.addstr(theme.CHAR_ACK_RECEIVED)
buffer.addstr(' ')
return poopt.wcswidth(theme.CHAR_ACK_RECEIVED) + 1
@staticmethod
def write_nack(buffer: Win) -> int:
theme = get_theme()
color = theme.COLOR_CHAR_NACK
with buffer.colored_text(color=color):
buffer.addstr(theme.CHAR_NACK)
buffer.addstr(' ')
return poopt.wcswidth(theme.CHAR_NACK) + 1
@staticmethod
def write_nickname(buffer: Win, nickname: str, color, highlight=False) -> None:
"""
Write the nickname, using the user's color
and return the number of written characters
"""
if not nickname:
return
attr = None
if highlight:
hl_color = get_theme().COLOR_HIGHLIGHT_NICK
if hl_color == "reverse":
attr = curses.A_REVERSE
else:
color = hl_color
with buffer.colored_text(color=color, attr=attr):
buffer.addstr(nickname)
@staticmethod
def write_time(buffer: Win, history: bool, time: datetime) -> int:
"""
Write the date on the yth line of the window
"""
theme = get_theme()
if time:
if history and time.date() != date.today():
format = theme.LONG_TIME_FORMAT
else:
format = theme.SHORT_TIME_FORMAT
time_str = time.strftime(format)
color = get_theme().COLOR_TIME_STRING
with buffer.colored_text(color=color):
buffer.addstr(time_str)
buffer.addstr(' ')
return poopt.wcswidth(time_str) + 1
return 0
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