Populate wx.svg with _nanosvg enum values.

This is for compatibility with wxpython 4.2.2 and any version compiled
with cython 3.1.

Added test cases for these enum values.

unittests/test_dcsvg.py

@@ -1,7 +1,7 @@
 import unittest
 from unittests import wtc
 import wx
-import sys
+import wx.svg
 import os
 
 fileName = 'svgtest.svg'
@@ -15,8 +15,44 @@ class SvgDCTests(wtc.WidgetTestCase):
         dc.DrawLine(0,0, 50,50)
         del dc
 
+        self.img = wx.svg.SVGimage.CreateFromFile(fileName)
+
+        dc = wx.ClientDC(self.frame)
+        dc.SetBackground(wx.Brush('white'))
+        dc.Clear()
+
+        dcdim = min(self.frame.Size.width, self.frame.Size.height)
+        imgdim = min(self.img.width, self.img.height)
+        scale = dcdim / imgdim
+
+        ctx = wx.GraphicsContext.Create(dc)
+        self.img.RenderToGC(ctx, scale)
+
         os.remove(fileName)
 
+    def test_SvgDC2(self):
+        assert wx.svg.SVGpaintType.SVG_PAINT_NONE == wx.svg.SVG_PAINT_NONE
+        assert wx.svg.SVGpaintType.SVG_PAINT_COLOR == wx.svg.SVG_PAINT_COLOR
+        assert wx.svg.SVGpaintType.SVG_PAINT_LINEAR_GRADIENT == wx.svg.SVG_PAINT_LINEAR_GRADIENT
+        assert wx.svg.SVGpaintType.SVG_PAINT_RADIAL_GRADIENT == wx.svg.SVG_PAINT_RADIAL_GRADIENT
+
+        assert wx.svg.SVGspreadType.SVG_SPREAD_PAD == wx.svg.SVG_SPREAD_PAD
+        assert wx.svg.SVGspreadType.SVG_SPREAD_REFLECT == wx.svg.SVG_SPREAD_REFLECT
+        assert wx.svg.SVGspreadType.SVG_SPREAD_REPEAT == wx.svg.SVG_SPREAD_REPEAT
+
+        assert wx.svg.SVGlineJoin.SVG_JOIN_MITER == wx.svg.SVG_JOIN_MITER
+        assert wx.svg.SVGlineJoin.SVG_JOIN_ROUND == wx.svg.SVG_JOIN_ROUND
+        assert wx.svg.SVGlineJoin.SVG_JOIN_BEVEL == wx.svg.SVG_JOIN_BEVEL
+
+        assert wx.svg.SVGlineCap.SVG_CAP_BUTT == wx.svg.SVG_CAP_BUTT
+        assert wx.svg.SVGlineCap.SVG_CAP_ROUND == wx.svg.SVG_CAP_ROUND
+        assert wx.svg.SVGlineCap.SVG_CAP_SQUARE == wx.svg.SVG_CAP_SQUARE
+
+        assert wx.svg.SVGfillRule.SVG_FILLRULE_NONZERO == wx.svg.SVG_FILLRULE_NONZERO
+        assert wx.svg.SVGfillRule.SVG_FILLRULE_EVENODD == wx.svg.SVG_FILLRULE_EVENODD
+
+        assert wx.svg.SVGflags.SVG_FLAGS_VISIBLE ==  wx.svg.SVG_FLAGS_VISIBLE
+
 #---------------------------------------------------------------------------
 
 

wx/svg/_nanosvg.pyx

@@ -77,6 +77,15 @@ cpdef enum SVGfillRule:
 cpdef enum SVGflags:
     SVG_FLAGS_VISIBLE = NSVG_FLAGS_VISIBLE
 
+# Populate the module namespace with enum values to keep compatibility with packages
+# compiled with cython > 3.1 (see https://github.com/cython/cython/issues/4571)
+globals().update(getattr(SVGpaintType, "__members__"))
+globals().update(getattr(SVGspreadType, "__members__"))
+globals().update(getattr(SVGlineJoin, "__members__"))
+globals().update(getattr(SVGlineCap, "__members__"))
+globals().update(getattr(SVGfillRule, "__members__"))
+globals().update(getattr(SVGflags, "__members__"))
+
 
 #----------------------------------------------------------------------------
 # Cython classes for wrapping the nanosvg structs