dabo Commit
Revision 6908
Date: 2011-10-20 16:44:15 -0700 (Thu, 20 Oct 2011)
Author: Paul
Trac: http://trac.dabodev.com/changeset/6908
Changed:
U trunk/dabo/ui/uiwx/dSizerMixin.py
Log:
I spent literally all afternoon chasing down a segmentation fault/illegal
instruction
in my code, and it turns out a copy/paste error added the same sizer twice:
187 vs.append(hs, "expand")
188
189 hs.appendSpacer((2,0))
190 hs.append(dabo.ui.dCheckBox(self, ##DataSource="ord_misc",
##DataField="enabled",
191 Name="chkEnabled", Caption="Enabled"), "expand")
192 hs.appendSpacer((20,0))
193 vs.append(hs, "expand")
Notice that in 187 I append hs, and I again append it in 193. Obviously, I had
meant to create a new instance of hs in 188, but I didn't notice because the
form
displayed okay. It was only when closing the application that the segfault
would occur.
So, given that a simple check in the sizer insert() code would have saved me all
this grief, I offer these two lines to my future self and hopefully others, too.
Diff:
Modified: trunk/dabo/ui/uiwx/dSizerMixin.py
===================================================================
--- trunk/dabo/ui/uiwx/dSizerMixin.py 2011-10-20 23:28:01 UTC (rev 6907)
+++ trunk/dabo/ui/uiwx/dSizerMixin.py 2011-10-20 23:44:15 UTC (rev 6908)
@@ -122,6 +122,8 @@
def insert(self, index, obj, layout="normal", proportion=0,
alignment=None,
halign="left", valign="top", border=None,
borderSides=None):
"""Inserts the passed object into the sizer layout at the
specified position."""
+ if obj in self.ChildSizers:
+ raise ValueError, _("Adding the same sizer twice is not
allowed.")
if isinstance(layout, int):
# proportion was passed first
layout, proportion = proportion, layout
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