Qt6 fixes and scheduler class started

Closes #149 (closed) #107 (closed)

b_asic/scheduler_gui/main_window.py

@@ -31,7 +31,7 @@ from qtpy.QtCore import (
     Qt,
     Slot,
 )
-from qtpy.QtGui import QCloseEvent, QColor, QFont, QIcon, QIntValidator
+from qtpy.QtGui import QCloseEvent, QColor, QFont, QIcon, QIntValidator, QPalette
 from qtpy.QtWidgets import (
     QAbstractButton,
     QAction,
@@ -98,9 +98,9 @@ if __debug__:
     log.debug(f"Qt version (compile time): {QtCore.__version__}")
     log.debug(f"QT_API:                    {QT_API}")
     if QT_API.lower().startswith("pyside"):
-        import PySide2
+        import PySide6
 
-        log.debug(f"PySide version:           {PySide2.__version__}")
+        log.debug(f"PySide version:           {PySide6.__version__}")
     if QT_API.lower().startswith("pyqt"):
         from qtpy.QtCore import PYQT_VERSION_STR
 
@@ -1688,8 +1688,16 @@ def start_scheduler(schedule: Optional[Schedule] = None) -> Optional[Schedule]:
         The edited schedule.
     """
     if not QApplication.instance():
-        QApplication.setAttribute(Qt.AA_EnableHighDpiScaling)
         app = QApplication(sys.argv)
+        # Enforce a light palette regardless of laptop theme
+        palette = QPalette()
+        palette.setColor(QPalette.ColorRole.Window, QtCore.Qt.white)
+        palette.setColor(QPalette.ColorRole.WindowText, QtCore.Qt.black)
+        palette.setColor(QPalette.ColorRole.ButtonText, QtCore.Qt.black)
+        palette.setColor(QPalette.ColorRole.Base, QtCore.Qt.white) 
+        palette.setColor(QPalette.ColorRole.AlternateBase, QtCore.Qt.lightGray) 
+        palette.setColor(QPalette.ColorRole.Text, QtCore.Qt.black)
+        app.setPalette(palette)
     else:
         app = QApplication.instance()
     window = ScheduleMainWindow()