1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
"""
The base classes for the styling.
"""
from __future__ import unicode_literals
from abc import ABCMeta, abstractmethod
from collections import namedtuple
from six import with_metaclass
__all__ = (
'Attrs',
'DEFAULT_ATTRS',
'ANSI_COLOR_NAMES',
'Style',
'DynamicStyle',
)
#: Style attributes.
Attrs = namedtuple('Attrs', 'color bgcolor bold underline italic blink reverse')
"""
:param color: Hexadecimal string. E.g. '000000' or Ansi color name: e.g. 'ansiblue'
:param bgcolor: Hexadecimal string. E.g. 'ffffff' or Ansi color name: e.g. 'ansired'
:param bold: Boolean
:param underline: Boolean
:param italic: Boolean
:param blink: Boolean
:param reverse: Boolean
"""
#: The default `Attrs`.
DEFAULT_ATTRS = Attrs(color=None, bgcolor=None, bold=False, underline=False,
italic=False, blink=False, reverse=False)
#: ``Attrs.bgcolor/fgcolor`` can be in either 'ffffff' format, or can be any of
#: the following in case we want to take colors from the 8/16 color palette.
#: Usually, in that case, the terminal application allows to configure the RGB
#: values for these names.
ANSI_COLOR_NAMES = [
'ansiblack', 'ansiwhite', 'ansidefault',
# Low intensity.
'ansired', 'ansigreen', 'ansiyellow', 'ansiblue', 'ansifuchsia', 'ansiturquoise', 'ansilightgray',
# High intensity. (Not supported everywhere.)
'ansidarkgray', 'ansidarkred', 'ansidarkgreen', 'ansibrown', 'ansidarkblue',
'ansipurple', 'ansiteal',
]
class Style(with_metaclass(ABCMeta, object)):
"""
Abstract base class for prompt_toolkit styles.
"""
@abstractmethod
def get_attrs_for_token(self, token):
"""
Return :class:`.Attrs` for the given token.
"""
@abstractmethod
def invalidation_hash(self):
"""
Invalidation hash for the style. When this changes over time, the
renderer knows that something in the style changed, and that everything
has to be redrawn.
"""
class DynamicStyle(Style):
"""
Style class that can dynamically returns an other Style.
:param get_style: Callable that returns a :class:`.Style` instance.
"""
def __init__(self, get_style):
self.get_style = get_style
def get_attrs_for_token(self, token):
style = self.get_style()
assert isinstance(style, Style)
return style.get_attrs_for_token(token)
def invalidation_hash(self):
return self.get_style().invalidation_hash()
|
