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"""Provides High DPI support by wrapping Qt options"""
from qtpy import QtCore
from .i18n import N_
from . import core
from . import compat
from . import version
class Option:
AUTO = '0'
DISABLE = 'disable'
TIMES_1 = '1'
TIMES_1_25 = '1.25'
TIMES_1_5 = '1.5'
TIMES_2 = '2'
def is_supported():
return version.check('qt-hidpi-scale', QtCore.__version__)
def apply_choice(value):
value = compat.ustr(value)
if value == Option.AUTO:
# Do not override the configuration when either of these
# two environment variables are defined.
if not core.getenv('QT_AUTO_SCREEN_SCALE_FACTOR') and not core.getenv(
'QT_SCALE_FACTOR'
):
compat.setenv('QT_AUTO_SCREEN_SCALE_FACTOR', '1')
compat.unsetenv('QT_SCALE_FACTOR')
elif value and value != Option.DISABLE:
compat.unsetenv('QT_AUTO_SCREEN_SCALE_FACTOR')
compat.setenv('QT_SCALE_FACTOR', value)
def options():
return (
(N_('Auto'), Option.AUTO),
(N_('Disable'), Option.DISABLE),
(N_('x 1'), Option.TIMES_1),
(N_('x 1.25'), Option.TIMES_1_25),
(N_('x 1.5'), Option.TIMES_1_5),
(N_('x 2'), Option.TIMES_2),
)
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