import os
import sys

from PySide6.QtCore import Qt
from PySide6.QtGui import QColor, QFont, QFontInfo, QIcon, QPalette
from PySide6.QtWidgets import (
    QApplication,
    QGridLayout,
    QHBoxLayout,
    QLabel,
    QMainWindow,
    QPushButton,
    QWidget,
)

from .autoslicer import Autoslicer, AutoslicerParams
from .controller import ScanSlicerControllerMixin
from .ui_builders import ScanSlicerUiBuilderMixin


# _unwrap_qvariant: function definition for ScanSlicer behavior.
def _unwrap_qvariant(value):
    unwrapped = value
    for _ in range(4):
        if hasattr(unwrapped, "variant"):
            try:
                candidate = unwrapped.variant()
            except Exception:
                candidate = unwrapped
            if candidate is not unwrapped:
                unwrapped = candidate
                continue

        if hasattr(unwrapped, "value"):
            try:
                candidate = unwrapped.value()
            except TypeError:
                candidate = unwrapped.value
            except Exception:
                candidate = unwrapped
            if candidate is not unwrapped:
                unwrapped = candidate
                continue
        break
    return unwrapped