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CONTEXT_KEYS = [ 'reset', 'error',
'in_display', 'in_statusbar', 'in_titlebar', 'in_console',
'in_notify',
'directory', 'file', 'hostname',
'executable', 'media', 'link',
'video', 'audio', 'image', 'media', 'document', 'container',
'selected', 'empty', 'maindisplay', 'message', 'background',
'good', 'bad',
'space', 'permissions', 'owner', 'group', 'mtime', 'nlink',
'scroll', 'all', 'bot', 'top', 'percentage',
'marked',
'text', 'highlight',
'keybuffer']
# colorscheme specification:
#
# A colorscheme must...
#
# 1. be inside either of these directories:
# ~/.ranger/colorschemes/
# path/to/ranger/colorschemes/
#
# 2. be a subclass ofranger.gui.colorscheme.ColorScheme
#
# 3. have a use(self, context) method which returns a tuple of 3 integers.
# the first integer is the foreground color, the second is the background
# color, the third is the attribute, as specified by the curses module.
#
#
# define which colorscheme to use by having this to your options.py:
# from ranger import colorschemes
# colorscheme = colorschemes.filename
#
# If your colorscheme-file contains more than one colorscheme, specify it with:
# colorscheme = colorschemes.filename.classname
from ranger.ext.openstruct import OpenStruct
class ColorScheme(object):
def __init__(self):
self.cache = {}
def get(self, *keys):
"""Determine the (fg, bg, attr) tuple or get it from cache"""
try:
return self.cache[keys]
except KeyError:
context = OpenStruct()
for key in CONTEXT_KEYS:
context[key] = (key in keys)
# add custom error messages for broken colorschemes
color = self.use(context)
self.cache[keys] = color
return color
def get_attr(self, *keys):
"""Returns the curses attr integer for the specified keys"""
from ranger.gui.color import get_color
import curses
fg, bg, attr = self.get(*keys)
return attr | curses.color_pair(get_color(fg, bg))
def use(self, context):
"""Use the colorscheme to determine the (fg, bg, attr) tuple.
This is a dummy function which always returns default_colors.
Override this in your custom colorscheme!
"""
from ranger.gui.color import default_colors
return default_colors
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