MNT: adapt to qtapp-centralization in mne-tools/mne-python#10048

mne_qt_browser/_pg_figure.py

@@ -36,11 +36,10 @@
 from pyqtgraph import (AxisItem, GraphicsView, InfLineLabel, InfiniteLine,
                        LinearRegionItem, PlotCurveItem, PlotItem,
                        Point, TextItem, ViewBox, mkBrush,
-                       mkPen, setConfigOption, mkQApp, mkColor)
+                       mkPen, setConfigOption, mkColor)
 from scipy.stats import zscore
 
 from mne.viz import plot_sensors
-from mne.viz.backends._utils import _init_qt_resources
 from mne.viz._figure import BrowserBase
 from mne.viz.utils import _simplify_float, _merge_annotations
 from mne.annotations import _sync_onset
@@ -64,6 +63,65 @@ def capture_exceptions():
 name = 'pyqtgraph'
 
 
+# This can be removed when mne==1.0 is released.
+try:
+    from mne.viz.backends._utils import _init_mne_qtapp
+except ImportError:
+    from mne.viz.backends._utils import _init_qt_resources
+
+    def _init_mne_qtapp(enable_icon=True, pg_app=False):
+        """Get QApplication-instance for MNE-Python.
+
+        Parameter
+        ---------
+        enable_icon: bool
+            If to set an MNE-icon for the app.
+        pg_app: bool
+            If to create the QApplication with pyqtgraph. For an until know
+            undiscovered reason the pyqtgraph-browser won't show without
+            mkQApp from pyqtgraph.
+
+        Returns
+        -------
+        app: ``PyQt5.QtWidgets.QApplication``
+            Instance of QApplication.
+        """
+        from PyQt5.QtWidgets import QApplication
+        from PyQt5.QtGui import QIcon
+
+        app_name = 'MNE-Python'
+        organization_name = 'MNE'
+
+        # Fix from cbrnr/mnelab for app name in menu bar
+        if sys.platform.startswith("darwin"):
+            try:
+                # set bundle name on macOS (app name shown in the menu bar)
+                from Foundation import NSBundle
+                bundle = NSBundle.mainBundle()
+                info = (bundle.localizedInfoDictionary()
+                        or bundle.infoDictionary())
+                info["CFBundleName"] = app_name
+            except ModuleNotFoundError:
+                pass
+
+        if pg_app:
+            from pyqtgraph import mkQApp
+            app = mkQApp(app_name)
+        else:
+            app = (QApplication.instance()
+                   or QApplication(sys.argv or [app_name]))
+            app.setApplicationName(app_name)
+        app.setOrganizationName(organization_name)
+
+        if enable_icon:
+            # Set icon
+            _init_qt_resources()
+            kind = 'bigsur-' if platform.mac_ver()[0] >= '10.16' else ''
+            app.setWindowIcon(QIcon(f":/mne-{kind}icon.png"))
+
+        return app
+
+
 def _get_std_icon(icon_name):
     return QApplication.instance().style().standardIcon(
         getattr(QStyle, icon_name))
@@ -3138,7 +3196,10 @@ def _update_data(self):
 
     def _get_zscore(self, data):
         # Reshape data to reasonable size for display
-        max_pixel_width = QApplication.desktop().screenGeometry().width()
+        if QApplication.desktop() is None:
+            max_pixel_width = 3840  # default=UHD
+        else:
+            max_pixel_width = QApplication.desktop().screenGeometry().width()
         collapse_by = data.shape[1] // max_pixel_width
         data = data[:, :max_pixel_width * collapse_by]
         if collapse_by > 0:
@@ -3765,12 +3826,7 @@ def _mouseDrag(widget, positions, button, modifier=None):
 def _init_browser(**kwargs):
     setConfigOption('enableExperimental', True)
 
-    app = mkQApp()
-    app.setApplicationName('MNE-Python')
-    app.setOrganizationName('MNE')
-    _init_qt_resources()
-    kind = 'bigsur-' if platform.mac_ver()[0] >= '10.16' else ''
-    app.setWindowIcon(QIcon(f":/mne-{kind}icon.png"))
+    _init_mne_qtapp(pg_app=True)
     browser = PyQtGraphBrowser(**kwargs)
 
     return browser