/
gui.py
165 lines (126 loc) · 5.09 KB
/
gui.py
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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
# -*- coding: utf-8 -*-
#
# Copyright © Spyder Project Contributors
# Licensed under the terms of the MIT License
# (see spyder/__init__.py for details)
"""
Spyder GUI-related configuration management
(for non-GUI configuration, see spyder/config/base.py)
Important note regarding shortcuts:
For compatibility with QWERTZ keyboards, one must avoid using the following
shortcuts:
Ctrl + Alt + Q, W, F, G, Y, X, C, V, B, N
"""
# Standard library imports
from collections import namedtuple
# Third party imports
from qtconsole.styles import dark_color
from qtpy import QT_VERSION
from qtpy.QtCore import Qt
from qtpy.QtGui import QFont, QFontDatabase, QKeySequence
from qtpy.QtWidgets import QShortcut
# Local imports
from spyder.config.manager import CONF
from spyder.py3compat import to_text_string
from spyder.utils import syntaxhighlighters as sh
# To save metadata about widget shortcuts (needed to build our
# preferences page)
Shortcut = namedtuple('Shortcut', 'data')
def font_is_installed(font):
"""Check if font is installed"""
db = QFontDatabase() if QT_VERSION.startswith("5") else QFontDatabase
return [fam for fam in db.families() if str(fam) == font]
def get_family(families):
"""Return the first installed font family in family list"""
if not isinstance(families, list):
families = [ families ]
for family in families:
if font_is_installed(family):
return family
else:
print("Warning: None of the following fonts is installed: %r" % families) # spyder: test-skip
return QFont().family()
FONT_CACHE = {}
def get_font(section='appearance', option='font', font_size_delta=0):
"""Get console font properties depending on OS and user options"""
font = FONT_CACHE.get((section, option, font_size_delta))
if font is None:
families = CONF.get(section, option+"/family", None)
if families is None:
return QFont()
family = get_family(families)
weight = QFont.Normal
italic = CONF.get(section, option+'/italic', False)
if CONF.get(section, option+'/bold', False):
weight = QFont.Bold
size = CONF.get(section, option+'/size', 9) + font_size_delta
font = QFont(family, size, weight)
font.setItalic(italic)
FONT_CACHE[(section, option, font_size_delta)] = font
size = CONF.get(section, option+'/size', 9) + font_size_delta
font.setPointSize(size)
return font
def set_font(font, section='appearance', option='font'):
"""Set font properties in our config system."""
CONF.set(section, option+'/family', to_text_string(font.family()))
CONF.set(section, option+'/size', float(font.pointSize()))
CONF.set(section, option+'/italic', int(font.italic()))
CONF.set(section, option+'/bold', int(font.bold()))
# This function is only used to set fonts that were changed through
# Preferences. And in that case it's not possible to set a delta.
font_size_delta = 0
FONT_CACHE[(section, option, font_size_delta)] = font
def _config_shortcut(action, context, name, keystr, parent):
"""
Create a Shortcut namedtuple for a widget.
The data contained in this tuple will be registered in our shortcuts
preferences page.
"""
qsc = QShortcut(QKeySequence(keystr), parent)
qsc.activated.connect(action)
qsc.setContext(Qt.WidgetWithChildrenShortcut)
sc = Shortcut(data=(qsc, context, name))
return sc
def get_color_scheme(name):
"""Get syntax color scheme"""
color_scheme = {}
for key in sh.COLOR_SCHEME_KEYS:
color_scheme[key] = CONF.get(
"appearance",
"%s/%s" % (name, key),
default=sh.COLOR_SCHEME_DEFAULT_VALUES[key])
return color_scheme
def set_color_scheme(name, color_scheme, replace=True):
"""Set syntax color scheme"""
section = "appearance"
names = CONF.get("appearance", "names", [])
for key in sh.COLOR_SCHEME_KEYS:
option = "%s/%s" % (name, key)
value = CONF.get(section, option, default=None)
if value is None or replace or name not in names:
CONF.set(section, option, color_scheme[key])
names.append(to_text_string(name))
CONF.set(section, "names", sorted(list(set(names))))
def set_default_color_scheme(name, replace=True):
"""Reset color scheme to default values"""
assert name in sh.COLOR_SCHEME_NAMES
set_color_scheme(name, sh.get_color_scheme(name), replace=replace)
def is_dark_font_color(color_scheme):
"""Check if the font color used in the color scheme is dark."""
color_scheme = get_color_scheme(color_scheme)
font_color, fon_fw, fon_fs = color_scheme['normal']
return dark_color(font_color)
def is_dark_interface():
ui_theme = CONF.get('appearance', 'ui_theme')
color_scheme = CONF.get('appearance', 'selected')
if ui_theme == 'dark':
return True
elif ui_theme == 'automatic':
if not is_dark_font_color(color_scheme):
return True
else:
return False
else:
return False
for _name in sh.COLOR_SCHEME_NAMES:
set_default_color_scheme(_name, replace=False)