Added wxGraphicsContext::CreateMatrix(wxAffineMatrix2D) overload.

Make it easy to convert generic wxAffineMatrix2D to native wxGraphicsMatrix.

Closes #13188.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@71085 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/graphics.h

@@ -512,6 +512,14 @@ public:
                                           wxDouble tx = 0.0,
                                           wxDouble ty = 0.0) const;
 
+    /**
+        Creates a native affine transformation matrix from the passed
+        generic one.
+
+        @since 2.9.4
+    */
+    wxGraphicsMatrix CreateMatrix(const wxAffineMatrix2DBase& mat) const;
+
     /**
         Creates a native graphics path which is initially empty.
     */