update docstring

statxc · statxc · commit 65cabc93b760 · 2026-03-11T19:35:16.000Z
diff --git a/lib/matplotlib/backends/_backend_tk.py b/lib/matplotlib/backends/_backend_tk.py
@@ -270,24 +270,22 @@ def _update_device_pixel_ratio(self, event=None):
         elif sys.platform == "linux":
             ratio = self._tkcanvas.winfo_fpixels('1i') / 96
         if ratio is not None and self._set_device_pixel_ratio(ratio):
-            # The easiest way to resize the canvas is to emit a
-            # resize event since we implement all the logic for resizing
-            # the canvas backing store on that event.
-            w, h = self.get_width_height(physical=True)
-            self._tkcanvas.configure(width=w, height=h)
-            # Use the current actual widget size to recalculate
-            # figure.size_inches with the new DPI.  When the canvas is
-            # constrained by a geometry manager (pack/grid), <Configure>
+            # Resize the canvas widget, then explicitly update the figure
+            # size to match the actual widget dimensions.  When the canvas
+            # is constrained by a geometry manager (pack/grid), <Configure>
             # may not fire after configure(), so we handle the resize
             # directly — similar to Qt's _update_pixel_ratio approach.
-            self._resize_canvas(
+            w, h = self.get_width_height(physical=True)
+            self._tkcanvas.configure(width=w, height=h)
+            self._resize_figure_for_canvas_size(
                 self._tkcanvas.winfo_width(),
                 self._tkcanvas.winfo_height())
 
     def resize(self, event):
-        self._resize_canvas(event.width, event.height)
+        self._resize_figure_for_canvas_size(event.width, event.height)
 
-    def _resize_canvas(self, width, height):
+    def _resize_figure_for_canvas_size(self, width, height):
+        """Update figure size and redraw based on a given canvas size."""
         if width <= 0 or height <= 0:
             return
 
