Add virtual dtor for DC classes

etg/dc.py

@@ -51,6 +51,8 @@ def run():
     c.addPublic()
     tools.removeVirtuals(c)
 
+    c.addDtor('public', True)
+
     # Keep only the wxSize overloads of these
     c.find('GetSize').findOverload('wxCoord').ignore()
     c.find('GetSizeMM').findOverload('wxCoord').ignore()

etgtools/extractors.py

@@ -1072,11 +1072,12 @@ private:
     {CLASS}& operator=(const {CLASS}&);""".format(CLASS=self.name))
         self.addItem(wig)
 
-    def addDtor(self, prot='protected'):
+    def addDtor(self, prot='protected', isVirtual=False):
         # add declaration of a destructor to this class
+        virtual = 'virtual ' if isVirtual else ''
         wig = WigCode("""\
 {PROT}:
-    ~{CLASS}();""".format(CLASS=self.name, PROT=prot))
+    {VIRTUAL}~{CLASS}();""".format(VIRTUAL=virtual, CLASS=self.name, PROT=prot))
         self.addItem(wig)
 
     def addDefaultCtor(self, prot='protected'):

unittests/test_dc.py

@@ -182,9 +182,11 @@ class dc_Tests(wtc.WidgetTestCase):
 
             # check ownership
             assert wx.siplib.ispyowned(dc)
+            assert not wx.siplib.isdeleted(dc)
 
         # check the DC's ownership has changed
         assert not wx.siplib.ispyowned(dc)
+        assert wx.siplib.isdeleted(dc)
 
 
 #---------------------------------------------------------------------------