hydrus/hydrus/client/gui/ClientGUIStyle.py

137 lines
3.6 KiB
Python

import os
from qtpy import QtWidgets as QW
from hydrus.core import HydrusConstants as HC
from hydrus.core import HydrusData
from hydrus.core import HydrusExceptions
STYLESHEET_DIR = os.path.join( HC.STATIC_DIR, 'qss' )
DEFAULT_HYDRUS_STYLESHEET = ''
ORIGINAL_STYLE_NAME = None
CURRENT_STYLE_NAME = None
ORIGINAL_STYLESHEET = None
CURRENT_STYLESHEET = None
def ClearStylesheet():
SetStyleSheet( ORIGINAL_STYLESHEET )
def GetAvailableStyles():
# so eventually expand this to do QStylePlugin or whatever we are doing to add more QStyles
return list( QW.QStyleFactory.keys() )
def GetAvailableStylesheets():
if not os.path.exists( STYLESHEET_DIR ) or not os.path.isdir( STYLESHEET_DIR ):
raise HydrusExceptions.DataMissing( 'Stylesheet dir "{}" is missing or not a directory!'.format( STYLESHEET_DIR ) )
stylesheet_filenames = []
extensions = [ '.qss', '.css' ]
for filename in os.listdir( STYLESHEET_DIR ):
if True in ( filename.endswith( ext ) for ext in extensions ):
stylesheet_filenames.append( filename )
return stylesheet_filenames
def InitialiseDefaults():
global DEFAULT_HYDRUS_STYLESHEET
try:
with open( os.path.join( STYLESHEET_DIR, 'default_hydrus.qss' ), 'r', encoding = 'utf-8' ) as f:
DEFAULT_HYDRUS_STYLESHEET = f.read()
except Exception as e:
HydrusData.Print( 'Failed to load default hydrus qss:' )
HydrusData.PrintException( e )
DEFAULT_HYDRUS_STYLESHEET = ''
global ORIGINAL_STYLE_NAME
global CURRENT_STYLE_NAME
ORIGINAL_STYLE_NAME = QW.QApplication.instance().style().objectName()
CURRENT_STYLE_NAME = ORIGINAL_STYLE_NAME
global ORIGINAL_STYLESHEET
global CURRENT_STYLESHEET
ORIGINAL_STYLESHEET = QW.QApplication.instance().styleSheet()
CURRENT_STYLESHEET = ORIGINAL_STYLESHEET
def SetStyleFromName( name ):
global CURRENT_STYLE_NAME
if name == CURRENT_STYLE_NAME:
return
if name in GetAvailableStyles():
try:
QW.QApplication.instance().setStyle( name )
CURRENT_STYLE_NAME = name
except Exception as e:
raise HydrusExceptions.DataMissing( 'Style "{}" could not be generated/applied. If this is the default, perhaps a third-party custom style, you may have to restart the client to re-set it. Extra error info: {}'.format( name, e ) )
else:
raise HydrusExceptions.DataMissing( 'Style "{}" does not exist! If this is the default, perhaps a third-party custom style, you may have to restart the client to re-set it.'.format( name ) )
def SetStyleSheet( stylesheet ):
global DEFAULT_HYDRUS_STYLESHEET
stylesheet_to_use = DEFAULT_HYDRUS_STYLESHEET + os.linesep * 2 + stylesheet
global CURRENT_STYLESHEET
if CURRENT_STYLESHEET != stylesheet_to_use:
QW.QApplication.instance().setStyleSheet( stylesheet_to_use )
CURRENT_STYLESHEET = stylesheet_to_use
def SetStylesheetFromPath( filename ):
path = os.path.join( STYLESHEET_DIR, filename )
if not os.path.exists( path ):
raise HydrusExceptions.DataMissing( 'Stylesheet "{}" does not exist!'.format( path ) )
with open( path, 'r', encoding = 'utf-8' ) as f:
qss = f.read()
SetStyleSheet( qss )