hydrus/hydrus/client/gui/QtInit.py

334 lines
7.7 KiB
Python

import os
import traceback
# If not explicitly set, prefer PySide instead of PyQt, which is the qtpy default
# It is critical that this runs on startup *before* anything is imported from qtpy.
def get_qt_library_str_status():
infos = []
try:
import PyQt5
infos.append( 'PyQt5 imported ok' )
except Exception as e:
infos.append( 'PyQt5 did not import ok:\n{}'.format( traceback.format_exc() ) )
try:
import PySide2
infos.append( 'PySide2 imported ok' )
except Exception as e:
infos.append( 'PySide2 did not import ok:\n{}'.format( traceback.format_exc() ) )
try:
import PyQt6
infos.append( 'PyQt6 imported ok' )
except Exception as e:
infos.append( 'PyQt6 did not import ok:\n{}'.format( traceback.format_exc() ) )
try:
import PySide6
infos.append( 'PySide6 imported ok' )
except Exception as e:
infos.append( 'PySide6 did not import ok:\n{}'.format( traceback.format_exc() ) )
return '\n'.join( infos )
if 'QT_API' in os.environ:
QT_API_INITIAL_VALUE = os.environ[ 'QT_API' ]
else:
from hydrus.core import HydrusConstants as HC
if HC.RUNNING_FROM_MACOS_APP:
os.environ[ 'FORCE_QT_API' ] = '1'
QT_API_INITIAL_VALUE = None
if 'QT_API' not in os.environ:
try:
import PySide6 # Qt6
os.environ[ 'QT_API' ] = 'pyside6'
except ImportError as e:
pass
if 'QT_API' not in os.environ:
try:
import PyQt6 # Qt6
os.environ[ 'QT_API' ] = 'pyqt6'
except ImportError as e:
pass
if 'QT_API' not in os.environ:
try:
import PySide2 # Qt5
os.environ[ 'QT_API' ] = 'pyside2'
except ImportError as e:
pass
if 'QT_API' not in os.environ:
try:
import PyQt5 # Qt5
os.environ[ 'QT_API' ] = 'pyqt5'
except ImportError as e:
pass
def get_qt_api_str_status():
try:
if QT_API_INITIAL_VALUE is None:
initial_qt = 'QT_API was initially not set.'
else:
initial_qt = 'QT_API was initially "{}".'.format( QT_API_INITIAL_VALUE )
if 'QT_API' in os.environ:
current_qt = 'Current QT_API is "{}".'.format( os.environ[ 'QT_API' ] )
else:
current_qt = 'Currently QT_API is not set.'
forced_qt = 'FORCE_QT_API is ON.' if 'FORCE_QT_API' in os.environ else 'FORCE_QT_API is not set.'
return '{} {} {}'.format( initial_qt, current_qt, forced_qt )
except Exception as e:
return 'Unable to get QT_API info: {}'.format( traceback.format_exc() )
#
try:
import qtpy
except ModuleNotFoundError as e:
message = 'Either the qtpy module was not found, or qtpy could not find a Qt to use!'
message += '\n' * 2
message += 'Are you sure you installed and activated your venv correctly? Check the \'running from source\' section of the help if you are confused!'
message += '\n' * 2
message += 'Here is info on QT_API:\n{}'.format( get_qt_api_str_status() )
message += '\n' * 2
message += 'Here is info on your available Qt Libraries:\n{}'.format( get_qt_library_str_status() )
raise Exception( message )
try:
from qtpy import QtCore as QC
from qtpy import QtWidgets as QW
from qtpy import QtGui as QG
except ModuleNotFoundError as e:
message = 'One of the Qt modules could not be loaded! Error was:\n{}'.format(
traceback.format_exc()
)
message += '\n' * 2
try:
message += 'Of the different Qts, qtpy selected: PySide2 ({}), PySide6 ({}), PyQt5 ({}), PyQt6 ({}).'.format(
'selected' if qtpy.PYSIDE2 else 'not selected',
'selected' if qtpy.PYSIDE6 else 'not selected',
'selected' if qtpy.PYQT5 else 'not selected',
'selected' if qtpy.PYQT6 else 'not selected'
)
except:
message += 'qtpy had problems saying which module it had selected!'
message += '\n' * 2
message += 'Here is info on QT_API:\n{}'.format( get_qt_api_str_status() )
message += '\n' * 2
message += 'Here is info on your available Qt Libraries:\n\n{}'.format( get_qt_library_str_status() )
message += '\n' * 2
message += 'If you are running from a built release, please let hydev know!'
raise Exception( message )
# 2022-07
# an older version of qtpy, 1.9 or so, didn't actually have attribute qtpy.PYQT6, so we'll test and assign carefully
WE_ARE_QT5 = False
WE_ARE_QT6 = False
WE_ARE_PYQT = False
WE_ARE_PYSIDE = False
if qtpy.PYQT5:
WE_ARE_QT5 = True
WE_ARE_PYQT = True
from PyQt5 import sip # pylint: disable=E0401
def isValid( obj ):
if isinstance( obj, sip.simplewrapper ):
return not sip.isdeleted( obj )
return True
elif hasattr( qtpy, 'PYQT6' ) and qtpy.PYQT6:
WE_ARE_QT6 = True
WE_ARE_PYQT = True
from PyQt6 import sip # pylint: disable=E0401
def isValid( obj ):
if isinstance( obj, sip.simplewrapper ):
return not sip.isdeleted( obj )
return True
elif qtpy.PYSIDE2:
WE_ARE_QT5 = True
WE_ARE_PYSIDE = True
import shiboken2
isValid = shiboken2.isValid
elif qtpy.PYSIDE6:
WE_ARE_QT6 = True
WE_ARE_PYSIDE = True
import shiboken6
isValid = shiboken6.isValid
else:
raise RuntimeError( 'You need one of PySide2, PySide6, PyQt5, or PyQt6' )
def DoWinDarkMode():
os.environ[ 'QT_QPA_PLATFORM' ] = 'windows:darkmode=1'
def MonkeyPatchMissingMethods():
if WE_ARE_QT5:
QG.QMouseEvent.globalPosition = lambda self, *args, **kwargs: QC.QPointF( self.globalPos( *args, **kwargs ) )
QG.QMouseEvent.position = lambda self, *args, **kwargs: QC.QPointF( self.pos( *args, **kwargs ) )
QG.QDropEvent.position = lambda self, *args, **kwargs: QC.QPointF( self.pos( *args, **kwargs ) )
QG.QDropEvent.modifiers = lambda self, *args, **kwargs: self.keyboardModifiers( *args, **kwargs )
if WE_ARE_PYQT:
def MonkeyPatchGetSaveFileName( original_function ):
def new_function( *args, **kwargs ):
if 'selectedFilter' in kwargs:
kwargs[ 'initialFilter' ] = kwargs[ 'selectedFilter' ]
del kwargs[ 'selectedFilter' ]
return original_function( *args, **kwargs )
return new_function
QW.QFileDialog.getSaveFileName = MonkeyPatchGetSaveFileName( QW.QFileDialog.getSaveFileName )