def pixel_ratio():
"""Get the pixel ratio."""
from mne.viz.backends.tests._utils import has_pyvista, has_pyqt5
if not has_pyvista() or not has_pyqt5():
return 1.
from PyQt5.QtWidgets import QApplication, QMainWindow
_ = QApplication.instance() or QApplication([])
window = QMainWindow()
ratio = float(window.devicePixelRatio())
window.close()
return ratio
def _check_skip_backend(name):
from mne.viz.backends.tests._utils import (has_mayavi, has_pyvista,
has_pyqt5, has_imageio_ffmpeg)
if name == 'mayavi':
if not has_mayavi():
pytest.skip("Test skipped, requires mayavi.")
elif name == 'pyvista':
if not has_pyvista():
pytest.skip("Test skipped, requires pyvista.")
if not has_imageio_ffmpeg():
pytest.skip("Test skipped, requires imageio-ffmpeg")
if not has_pyqt5():
pytest.skip("Test skipped, requires PyQt5.")
def _check_skip_backend(name):
from mne.viz.backends.tests._utils import (has_pyvista, has_pyqt5,
has_imageio_ffmpeg,
has_pyvistaqt)
if name in ('pyvistaqt', 'notebook'):
if not has_pyvista():
pytest.skip("Test skipped, requires pyvista.")
if not has_imageio_ffmpeg():
pytest.skip("Test skipped, requires imageio-ffmpeg")
if name == 'pyvistaqt' and not has_pyqt5():
pytest.skip("Test skipped, requires PyQt5.")
if name == 'pyvistaqt' and not has_pyvistaqt():
pytest.skip("Test skipped, requires pyvistaqt")