mirror of https://github.com/nicolargo/glances
Refactor colors Class for Curses UI
nicolargo
parent
e086625f1a
commit
6b036ec0ac
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@ -720,6 +720,10 @@ Examples of use:
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args.time = 1
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args.disable_history = True
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# Unicode => No separator
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if args.disable_unicode:
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args.enable_separator = False
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def parse_args(self):
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"""Parse command line arguments."""
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args = self.init_args().parse_args()
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@ -0,0 +1,161 @@
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#
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# This file is part of Glances.
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#
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# SPDX-FileCopyrightText: 2024 Nicolas Hennion <nicolas@nicolargo.com>
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#
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# SPDX-License-Identifier: LGPL-3.0-only
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#
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"""Glances colors."""
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import sys
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from glances.logger import logger
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try:
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import curses
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except ImportError:
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logger.critical("Curses module not found. Glances cannot start in standalone mode.")
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sys.exit(1)
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class GlancesColors:
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"""Class to manage colors in Glances UI
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For the moment limited to Curses interface.
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But will be used in the WebUI through the issue #2048"""
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def __init__(self, args) -> None:
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self.args = args
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# Define "home made" bold
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self.A_BOLD = 0 if args.disable_bold else curses.A_BOLD
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# Set defaults curses colors
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try:
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if hasattr(curses, 'start_color'):
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curses.start_color()
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logger.debug(f'Curses interface compatible with {curses.COLORS} colors')
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if hasattr(curses, 'use_default_colors'):
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# Use -1 to use the default foregound/background color
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curses.use_default_colors()
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if hasattr(curses, 'assume_default_colors'):
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# Define the color index 0 with -1 and -1 for foregound/background
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# = curses.init_pair(0, -1, -1)
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curses.assume_default_colors(-1, -1)
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except Exception as e:
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logger.warning(f'Error initializing terminal color ({e})')
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if curses.has_colors():
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# The screen is compatible with a colored design
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# ex: export TERM=xterm-256color
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# export TERM=xterm-color
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self.__define_colors()
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else:
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# The screen is NOT compatible with a colored design
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# switch to B&W text styles
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# ex: export TERM=xterm-mono
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self.__define_bw()
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def __repr__(self) -> dict:
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return self.get()
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def __define_colors(self) -> None:
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curses.init_pair(1, -1, -1)
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if self.args.disable_bg:
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curses.init_pair(2, curses.COLOR_RED, -1)
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curses.init_pair(3, curses.COLOR_GREEN, -1)
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curses.init_pair(5, curses.COLOR_MAGENTA, -1)
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else:
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curses.init_pair(2, -1, curses.COLOR_RED)
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curses.init_pair(3, curses.COLOR_BLACK, curses.COLOR_GREEN)
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curses.init_pair(5, -1, curses.COLOR_MAGENTA)
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curses.init_pair(4, curses.COLOR_BLUE, -1)
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curses.init_pair(6, curses.COLOR_RED, -1)
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curses.init_pair(7, curses.COLOR_GREEN, -1)
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curses.init_pair(8, curses.COLOR_MAGENTA, -1)
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# Colors text styles
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self.DEFAULT = curses.color_pair(1)
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self.OK_LOG = curses.color_pair(3) | self.A_BOLD
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self.NICE = curses.color_pair(8)
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self.CPU_TIME = curses.color_pair(8)
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self.CAREFUL_LOG = curses.color_pair(4) | self.A_BOLD
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self.WARNING_LOG = curses.color_pair(5) | self.A_BOLD
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self.CRITICAL_LOG = curses.color_pair(2) | self.A_BOLD
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self.OK = curses.color_pair(7)
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self.CAREFUL = curses.color_pair(4)
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self.WARNING = curses.color_pair(8) | self.A_BOLD
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self.CRITICAL = curses.color_pair(6) | self.A_BOLD
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self.INFO = curses.color_pair(4)
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self.FILTER = self.A_BOLD
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self.SELECTED = self.A_BOLD
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self.SEPARATOR = curses.color_pair(1)
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if curses.COLORS > 8:
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# ex: export TERM=xterm-256color
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try:
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curses.init_pair(9, curses.COLOR_CYAN, -1)
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curses.init_pair(10, curses.COLOR_YELLOW, -1)
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except Exception:
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curses.init_pair(9, -1, -1)
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curses.init_pair(10, -1, -1)
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self.FILTER = curses.color_pair(9) | self.A_BOLD
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self.SELECTED = curses.color_pair(10) | self.A_BOLD
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# Define separator line style
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try:
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curses.init_color(11, 500, 500, 500)
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curses.init_pair(11, curses.COLOR_BLACK, -1)
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self.SEPARATOR = curses.color_pair(11)
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except Exception:
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# Catch exception in TMUX
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pass
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def __define_bw(self) -> None:
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# The screen is NOT compatible with a colored design
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# switch to B&W text styles
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# ex: export TERM=xterm-mono
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self.DEFAULT = -1
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self.OK_LOG = -1
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self.NICE = self.A_BOLD
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self.CPU_TIME = self.A_BOLD
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self.CAREFUL_LOG = self.A_BOLD
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self.WARNING_LOG = curses.A_UNDERLINE
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self.CRITICAL_LOG = curses.A_REVERSE
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self.OK = -1
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self.CAREFUL = self.A_BOLD
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self.WARNING = curses.A_UNDERLINE
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self.CRITICAL = curses.A_REVERSE
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self.INFO = self.A_BOLD
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self.FILTER = self.A_BOLD
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self.SELECTED = self.A_BOLD
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self.SEPARATOR = -1
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def get(self) -> dict:
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return {
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'DEFAULT': self.DEFAULT,
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'UNDERLINE': curses.A_UNDERLINE,
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'BOLD': self.A_BOLD,
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'SORT': curses.A_UNDERLINE | self.A_BOLD,
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'OK': self.OK,
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'MAX': self.OK | self.A_BOLD,
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'FILTER': self.FILTER,
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'TITLE': self.A_BOLD,
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'PROCESS': self.OK,
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'PROCESS_SELECTED': self.OK | curses.A_UNDERLINE,
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'STATUS': self.OK,
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'NICE': self.NICE,
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'CPU_TIME': self.CPU_TIME,
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'CAREFUL': self.CAREFUL,
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'WARNING': self.WARNING,
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'CRITICAL': self.CRITICAL,
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'OK_LOG': self.OK_LOG,
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'CAREFUL_LOG': self.CAREFUL_LOG,
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'WARNING_LOG': self.WARNING_LOG,
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'CRITICAL_LOG': self.CRITICAL_LOG,
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'PASSWORD': curses.A_PROTECT,
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'SELECTED': self.SELECTED,
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'INFO': self.INFO,
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'ERROR': self.SELECTED,
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'SEPARATOR': self.SEPARATOR,
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}
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@ -14,6 +14,7 @@ import sys
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from glances.events_list import glances_events
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from glances.globals import MACOS, WINDOWS, disable, enable, itervalues, nativestr, u
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from glances.logger import logger
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from glances.outputs.glances_colors import GlancesColors
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from glances.outputs.glances_unicode import unicode_message
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from glances.processes import glances_processes, sort_processes_key_list
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from glances.timer import Timer
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@ -162,7 +163,7 @@ class _GlancesCurses:
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self._init_cursor()
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# Init the colors
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self.colors_list = build_colors_list(args)
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self.colors_list = GlancesColors(args).get()
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# Init main window
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self.term_window = self.screen.subwin(0, 0)
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@ -1179,128 +1180,3 @@ class GlancesTextboxYesNo(Textbox):
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def do_command(self, ch):
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return super().do_command(ch)
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def build_colors_list(args):
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"""Init the Curses color layout."""
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# Set curses options
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try:
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if hasattr(curses, 'start_color'):
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curses.start_color()
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logger.debug(f'Curses interface compatible with {curses.COLORS} colors')
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if hasattr(curses, 'use_default_colors'):
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curses.use_default_colors()
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except Exception as e:
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logger.warning(f'Error initializing terminal color ({e})')
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# Init colors
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if args.disable_bold:
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A_BOLD = 0
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args.disable_bg = True
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else:
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A_BOLD = curses.A_BOLD
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title_color = A_BOLD
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if curses.has_colors():
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# The screen is compatible with a colored design
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# ex: export TERM=xterm-256color
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# export TERM=xterm-color
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curses.init_pair(1, -1, -1)
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if args.disable_bg:
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curses.init_pair(2, curses.COLOR_RED, -1)
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curses.init_pair(3, curses.COLOR_GREEN, -1)
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curses.init_pair(5, curses.COLOR_MAGENTA, -1)
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else:
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curses.init_pair(2, -1, curses.COLOR_RED)
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curses.init_pair(3, 0, curses.COLOR_GREEN)
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curses.init_pair(5, -1, curses.COLOR_MAGENTA)
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curses.init_pair(4, curses.COLOR_BLUE, -1)
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curses.init_pair(6, curses.COLOR_RED, -1)
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curses.init_pair(7, curses.COLOR_GREEN, -1)
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curses.init_pair(8, curses.COLOR_MAGENTA, -1)
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# Colors text styles
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no_color = curses.color_pair(1)
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default_color = curses.color_pair(3) | A_BOLD
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nice_color = curses.color_pair(8)
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cpu_time_color = curses.color_pair(8)
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ifCAREFUL_color = curses.color_pair(4) | A_BOLD
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ifWARNING_color = curses.color_pair(5) | A_BOLD
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ifCRITICAL_color = curses.color_pair(2) | A_BOLD
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default_color2 = curses.color_pair(7)
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ifCAREFUL_color2 = curses.color_pair(4)
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ifWARNING_color2 = curses.color_pair(8) | A_BOLD
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ifCRITICAL_color2 = curses.color_pair(6) | A_BOLD
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ifINFO_color = curses.color_pair(4)
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filter_color = A_BOLD
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selected_color = A_BOLD
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separator = curses.color_pair(1)
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if curses.COLORS > 8:
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# ex: export TERM=xterm-256color
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colors_list = [curses.COLOR_CYAN, curses.COLOR_YELLOW]
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for i in range(0, 3):
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try:
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curses.init_pair(i + 9, colors_list[i], -1)
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except Exception:
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curses.init_pair(i + 9, -1, -1)
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filter_color = curses.color_pair(9) | A_BOLD
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selected_color = curses.color_pair(10) | A_BOLD
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# Define separator line style
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try:
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curses.init_color(11, 500, 500, 500)
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curses.init_pair(11, curses.COLOR_BLACK, -1)
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separator = curses.color_pair(11)
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except Exception:
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# Catch exception in TMUX
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pass
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else:
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# The screen is NOT compatible with a colored design
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# switch to B&W text styles
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# ex: export TERM=xterm-mono
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no_color = -1
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default_color = -1
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nice_color = A_BOLD
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cpu_time_color = A_BOLD
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ifCAREFUL_color = A_BOLD
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ifWARNING_color = curses.A_UNDERLINE
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ifCRITICAL_color = curses.A_REVERSE
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default_color2 = -1
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ifCAREFUL_color2 = A_BOLD
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ifWARNING_color2 = curses.A_UNDERLINE
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ifCRITICAL_color2 = curses.A_REVERSE
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ifINFO_color = A_BOLD
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filter_color = A_BOLD
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selected_color = A_BOLD
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separator = -1
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# Define the colors list (hash table) for stats
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return {
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'DEFAULT': no_color,
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'UNDERLINE': curses.A_UNDERLINE,
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'BOLD': A_BOLD,
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'SORT': curses.A_UNDERLINE | A_BOLD,
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'OK': default_color2,
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'MAX': default_color2 | A_BOLD,
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'FILTER': filter_color,
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'TITLE': title_color,
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'PROCESS': default_color2,
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'PROCESS_SELECTED': default_color2 | curses.A_UNDERLINE,
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'STATUS': default_color2,
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'NICE': nice_color,
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'CPU_TIME': cpu_time_color,
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'CAREFUL': ifCAREFUL_color2,
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'WARNING': ifWARNING_color2,
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'CRITICAL': ifCRITICAL_color2,
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'OK_LOG': default_color,
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'CAREFUL_LOG': ifCAREFUL_color,
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'WARNING_LOG': ifWARNING_color,
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'CRITICAL_LOG': ifCRITICAL_color,
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'PASSWORD': curses.A_PROTECT,
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'SELECTED': selected_color,
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'INFO': ifINFO_color,
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'ERROR': selected_color,
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'SEPARATOR': separator,
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}
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