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"""
Theme and presentation related code for the Mu editor.
Copyright (c) 2015-2017 Nicholas H.Tollervey and others (see the AUTHORS file).
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
import logging
import platform
from PyQt5.QtGui import QColor, QFontDatabase
from mu.resources import load_stylesheet, load_font_data
logger = logging.getLogger(__name__)
def should_patch_osx_mojave_font():
"""
OSX mojave and qt5/qtscintilla has a bug where non-system installed fonts
are always rendered as black, regardless of the theme color.
This is inconvenient for light themes, but makes dark themes unusable.
Using a system-installed font doesn't exhibit this behaviour, so
update FONT_NAME to use the default terminal font in OSX on mojave.
This patch should be removed once the underlying issue has been resolved
github issue #552
"""
return platform.platform().startswith("Darwin-18.")
# The default font size.
DEFAULT_FONT_SIZE = 14
# All editor windows use the same font
if should_patch_osx_mojave_font(): # pragma: no cover
logger.warn("Overriding built-in editor font due to Issue #552")
FONT_NAME = "Monaco"
else: # pragma: no cover
FONT_NAME = "Inconsolata"
FONT_FILENAME = "Inconsolata.otf"
# Load the two themes from resources/css/[night|day].css
# NIGHT_STYLE is a dark theme.
NIGHT_STYLE = load_stylesheet('night.css')
# DAY_STYLE is a light conventional theme.
DAY_STYLE = load_stylesheet('day.css')
# CONTRAST_STYLE is a high contrast theme.
CONTRAST_STYLE = load_stylesheet('contrast.css')
logger = logging.getLogger(__name__)
class Font:
"""
Utility class that makes it easy to set font related values within the
editor.
"""
_DATABASE = None
def __init__(self, color='#181818', paper='#FEFEF7', bold=False,
italic=False):
self.color = color
self.paper = paper
self.bold = bold
self.italic = italic
@classmethod
def get_database(cls):
"""
Create a font database and load the MU builtin fonts into it.
This is a cached classmethod so the font files aren't re-loaded
every time a font is refereced
"""
if cls._DATABASE is None:
cls._DATABASE = QFontDatabase()
filename = FONT_FILENAME
font_data = load_font_data(filename)
cls._DATABASE.addApplicationFontFromData(font_data)
return cls._DATABASE
def load(self, size=DEFAULT_FONT_SIZE):
"""
Load the font from the font database, using the correct size and style
"""
return Font.get_database().font(FONT_NAME, self.stylename, size)
@property
def stylename(self):
"""
Map the bold and italic boolean flags here to a relevant
font style name.
"""
if self.bold:
if self.italic:
return "Semibold Italic"
return "Semibold"
if self.italic:
return "Italic"
return "Regular"
class Theme:
"""
Defines a font and other theme specific related information.
"""
@classmethod
def apply_to(cls, lexer):
# Apply a font for all styles
lexer.setFont(Font().load())
for name, font in cls.__dict__.items():
if not isinstance(font, Font):
continue
style_num = getattr(lexer, name)
lexer.setColor(QColor(font.color), style_num)
lexer.setEolFill(True, style_num)
lexer.setPaper(QColor(font.paper), style_num)
lexer.setFont(font.load(), style_num)
class DayTheme(Theme):
"""
Defines a Python related theme including the various font colours for
syntax highlighting.
This is a light theme.
"""
FunctionMethodName = ClassName = Font(color='#0000a0')
UnclosedString = Font(paper='#FFDDDD')
Comment = CommentBlock = Font(color='gray')
Keyword = Font(color='#005050', bold=True)
SingleQuotedString = DoubleQuotedString = Font(color='#800000')
TripleSingleQuotedString = TripleDoubleQuotedString = Font(color='#060')
Number = Font(color='#00008B')
Decorator = Font(color='#cc6600')
Default = Identifier = Font()
Operator = Font(color='#400040')
HighlightedIdentifier = Font(color='#0000a0')
Paper = QColor('#FEFEF7')
Caret = QColor('#181818')
Margin = QColor('#EEE')
IndicatorError = QColor('red')
IndicatorStyle = QColor('blue')
DebugStyle = QColor('#ffcc33')
IndicatorWordMatch = QColor('lightGrey')
BraceBackground = QColor('lightGrey')
BraceForeground = QColor('blue')
UnmatchedBraceBackground = QColor('#FFDDDD')
UnmatchedBraceForeground = QColor('black')
BreakpointMarker = QColor('#D80000')
class NightTheme(Theme):
"""
Defines a Python related theme including the various font colours for
syntax highlighting.
This is the dark theme.
"""
FunctionMethodName = ClassName = Font(color='#81a2be', paper='#222')
UnclosedString = Font(paper='#c93827')
Comment = CommentBlock = Font(color='#969896', paper='#222')
Keyword = Font(color='#73a46a', bold=True, paper='#222')
SingleQuotedString = DoubleQuotedString = Font(color='#f0c674',
paper='#222')
TripleSingleQuotedString = TripleDoubleQuotedString = Font(color='#f0c674',
paper='#222')
Number = Font(color='#b5bd68', paper='#222')
Decorator = Font(color='#cc6666', paper='#222')
Default = Identifier = Font(color='#DDD', paper='#222')
Operator = Font(color='#b294bb', paper='#222')
HighlightedIdentifier = Font(color='#de935f', paper='#222')
Paper = QColor('#222')
Caret = QColor('#c6c6c6')
Margin = QColor('#424446')
IndicatorError = QColor('#c93827')
IndicatorStyle = QColor('#2f5692')
DebugStyle = QColor('#444')
IndicatorWordMatch = QColor('#f14721')
BraceBackground = QColor('#ed1596')
BraceForeground = QColor('#222')
UnmatchedBraceBackground = QColor('#c93827')
UnmatchedBraceForeground = QColor('#222')
BreakpointMarker = QColor('#c93827')
class ContrastTheme(Theme):
"""
Defines a Python related theme including the various font colours for
syntax highlighting.
This is the high contrast theme.
"""
FunctionMethodName = ClassName = Font(color='#AAA', paper='black')
UnclosedString = Font(paper='#666')
Comment = CommentBlock = Font(color='#AAA', paper='black')
Keyword = Font(color='#EEE', bold=True, paper='black')
SingleQuotedString = DoubleQuotedString = Font(color='#AAA', paper='black')
TripleSingleQuotedString = TripleDoubleQuotedString = Font(color='#AAA',
paper='black')
Number = Font(color='#AAA', paper='black')
Decorator = Font(color='#cccccc', paper='black')
Default = Identifier = Font(color='#fff', paper='black')
Operator = Font(color='#CCC', paper='black')
HighlightedIdentifier = Font(color='#ffffff', paper='black')
Paper = QColor('black')
Caret = QColor('white')
Margin = QColor('#333')
IndicatorError = QColor('white')
IndicatorStyle = QColor('cyan')
DebugStyle = QColor('#666')
IndicatorWordMatch = QColor('grey')
BraceBackground = QColor('white')
BraceForeground = QColor('black')
UnmatchedBraceBackground = QColor('#666')
UnmatchedBraceForeground = QColor('black')
BreakpointMarker = QColor('lightGrey')
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