BUG: use primary screen to center main window

The existing code to resize and recenter the main window
had a bug where multiple monitors were apparently being
reported as one large screen, causing the window to appear
in between two monitors.  This commit centers the window
on the primary screen specifically.

superscore/bin/ui.py

@@ -10,6 +10,9 @@
 from superscore.client import Client
 from superscore.widgets.window import Window
 
+DEFAULT_WIDTH = 1400
+DEFAULT_HEIGHT = 800
+
 
 def build_arg_parser(argparser=None):
     if argparser is None:
@@ -22,5 +25,11 @@ def main(*args, client: Optional[Client] = None, **kwargs):
     app = QApplication(sys.argv)
     main_window = Window(client=client)
 
+    primary_screen = app.screens()[0]
+    center = primary_screen.geometry().center()
+    # move window rather creating a QRect because we want to include the frame geometry
+    main_window.setGeometry(0, 0, DEFAULT_WIDTH, DEFAULT_HEIGHT)
+    delta = main_window.geometry().center()
+    main_window.move(center - delta)
     main_window.show()
     app.exec()

superscore/widgets/window.py

@@ -24,9 +24,6 @@
 
 logger = logging.getLogger(__name__)
 
-DEFAULT_WIDTH = 1400
-DEFAULT_HEIGHT = 800
-
 
 class Window(Display, QtWidgets.QMainWindow):
     """Main superscore window"""
@@ -47,8 +44,6 @@ def __init__(self, *args, client: Optional[Client] = None, **kwargs):
 
         self._partial_slots = []
 
-        self.resize(DEFAULT_WIDTH, DEFAULT_HEIGHT)
-        self.move(self.screen().geometry().center() - self.frameGeometry().center())
         self.setup_ui()
         self.open_search_page()