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plotter-app/venv/lib/python3.8/site-packages/matplotlib/backends/backend_wxagg.py

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+import wx
+
+from .. import _api
+from .backend_agg import FigureCanvasAgg
+from .backend_wx import _BackendWx, _FigureCanvasWxBase, FigureFrameWx
+from .backend_wx import (  # noqa: F401 # pylint: disable=W0611
+    NavigationToolbar2Wx as NavigationToolbar2WxAgg)
+
+
+@_api.deprecated(
+    "3.6", alternative="FigureFrameWx(..., canvas_class=FigureCanvasWxAgg)")
+class FigureFrameWxAgg(FigureFrameWx):
+    def get_canvas(self, fig):
+        return FigureCanvasWxAgg(self, -1, fig)
+
+
+class FigureCanvasWxAgg(FigureCanvasAgg, _FigureCanvasWxBase):
+    """
+    The FigureCanvas contains the figure and does event handling.
+
+    In the wxPython backend, it is derived from wxPanel, and (usually)
+    lives inside a frame instantiated by a FigureManagerWx. The parent
+    window probably implements a wxSizer to control the displayed
+    control size - but we give a hint as to our preferred minimum
+    size.
+    """
+
+    def draw(self, drawDC=None):
+        """
+        Render the figure using agg.
+        """
+        FigureCanvasAgg.draw(self)
+        self.bitmap = _rgba_to_wx_bitmap(self.get_renderer().buffer_rgba())
+        self._isDrawn = True
+        self.gui_repaint(drawDC=drawDC)
+
+    def blit(self, bbox=None):
+        # docstring inherited
+        bitmap = _rgba_to_wx_bitmap(self.get_renderer().buffer_rgba())
+        if bbox is None:
+            self.bitmap = bitmap
+        else:
+            srcDC = wx.MemoryDC(bitmap)
+            destDC = wx.MemoryDC(self.bitmap)
+            x = int(bbox.x0)
+            y = int(self.bitmap.GetHeight() - bbox.y1)
+            destDC.Blit(x, y, int(bbox.width), int(bbox.height), srcDC, x, y)
+            destDC.SelectObject(wx.NullBitmap)
+            srcDC.SelectObject(wx.NullBitmap)
+        self.gui_repaint()
+
+
+def _rgba_to_wx_bitmap(rgba):
+    """Convert an RGBA buffer to a wx.Bitmap."""
+    h, w, _ = rgba.shape
+    return wx.Bitmap.FromBufferRGBA(w, h, rgba)
+
+
+@_BackendWx.export
+class _BackendWxAgg(_BackendWx):
+    FigureCanvas = FigureCanvasWxAgg