reconnect moved files to git repo

venv/lib/python3.11/site-packages/matplotlib/backends/backend_gtk4agg.py

@@ -0,0 +1,41 @@
+import numpy as np
+
+from .. import cbook
+from . import backend_agg, backend_gtk4
+from .backend_gtk4 import GLib, Gtk, _BackendGTK4
+
+import cairo  # Presence of cairo is already checked by _backend_gtk.
+
+
+class FigureCanvasGTK4Agg(backend_agg.FigureCanvasAgg,
+                          backend_gtk4.FigureCanvasGTK4):
+
+    def on_draw_event(self, widget, ctx):
+        if self._idle_draw_id:
+            GLib.source_remove(self._idle_draw_id)
+            self._idle_draw_id = 0
+            self.draw()
+
+        scale = self.device_pixel_ratio
+        allocation = self.get_allocation()
+
+        Gtk.render_background(
+            self.get_style_context(), ctx,
+            allocation.x, allocation.y,
+            allocation.width, allocation.height)
+
+        buf = cbook._unmultiplied_rgba8888_to_premultiplied_argb32(
+            np.asarray(self.get_renderer().buffer_rgba()))
+        height, width, _ = buf.shape
+        image = cairo.ImageSurface.create_for_data(
+            buf.ravel().data, cairo.FORMAT_ARGB32, width, height)
+        image.set_device_scale(scale, scale)
+        ctx.set_source_surface(image, 0, 0)
+        ctx.paint()
+
+        return False
+
+
+@_BackendGTK4.export
+class _BackendGTK4Agg(_BackendGTK4):
+    FigureCanvas = FigureCanvasGTK4Agg