Modernize super() calls and fix formatting in wx_widgets.py

- Replace super(Class, self) with modern super() syntax
- Break long lines for better PEP 8 compliance
- Add type annotation for SizedPanel pane variable
- Fix SizedFrame.set_padding() to use correct SetSizerProp API

Author: ctoth

gui_builder/widgets/wx_widgets.py

@@ -802,7 +802,9 @@ def get_x_y_from_insertion_point(self, insertion_point: int) -> Tuple[int, int]:
     def clear(self) -> None:
         return self.control.Clear()
 
-    def _to_wx_colour(self, color: Union[wx.Colour, str, Tuple[int, int, int]]) -> wx.Colour:
+    def _to_wx_colour(
+        self, color: Union[wx.Colour, str, Tuple[int, int, int]]
+    ) -> wx.Colour:
         """Convert various color formats to wx.Colour.
 
         Args:
@@ -912,7 +914,9 @@ def _text_attr_to_dict(self, attr: wx.TextAttr) -> Dict[str, Any]:
             result["text_color"] = self._from_wx_colour(attr.GetTextColour())
 
         if attr.HasBackgroundColour():
-            result["background_color"] = self._from_wx_colour(attr.GetBackgroundColour())
+            result["background_color"] = self._from_wx_colour(
+                attr.GetBackgroundColour()
+            )
 
         if attr.HasAlignment():
             result["alignment"] = attr.GetAlignment()
@@ -1565,11 +1569,11 @@ class SizedPanel(BaseContainer[FieldType, sc.SizedPanel]):
     focusable = False
 
     def __init__(self, sizer_type="vertical", *args, **kwargs):
-        super(SizedPanel, self).__init__(*args, **kwargs)
+        super().__init__(*args, **kwargs)
         self.sizer_type = sizer_type
 
     def render(self):
-        super(SizedPanel, self).render()
+        super().render()
         self.control.SetSizerType(self.sizer_type)
 
 
@@ -1584,7 +1588,7 @@ def __init__(self, maximized: bool = False, *args, **kwargs):
         super(BaseFrame, self).__init__(*args, **kwargs)
 
     def render(self, *args, **kwargs):
-        super(BaseFrame, self).render(*args, **kwargs)
+        super().render(*args, **kwargs)
         if self.control_maximized:
             self.maximize()
 
@@ -1618,8 +1622,8 @@ def set_content_padding(self, padding: int) -> None:
         Args:
             padding (int): Padding in pixels around all content
         """
-        pane = self.control.GetContentsPane()
-        pane.SetSizerProps(border=("all", padding))
+        pane: sc.SizedPanel = self.control.GetContentsPane()
+        pane.SetSizerProp("border", padding)
 
 
 class MDIParentFrame(BaseFrame[FieldType, wx.MDIParentFrame]):
@@ -1666,7 +1670,9 @@ def on_navigation_key(evt: wx.Event):
 
             # Don't interfere with Ctrl+Tab or Ctrl+PageUp/PageDown - let wxPython handle tab switching
             if self.control_down:
-                logger.debug("Ctrl pressed at page level, allowing default notebook tab switching")
+                logger.debug(
+                    "Ctrl pressed at page level, allowing default notebook tab switching"
+                )
                 nav_evt.Skip()
                 return