[Pythoncard-users] resourceEditor and Property Editor fixes

[Kevin A. <al...@se...>]

I made the Property Editor a "listener" of the background components so now
when you add or delete a widget, the change should be reflected in the
Property Editor. This makes the Property Editor usable with the
resourceEditor.

When you select a widget in the resourceEditor, it automatically selects
that component in the Property Editor.

I think I fixed the backgroundColor reset problem when opening up a stack.
The default background color appears to be the wxPython constant
  wxSYS_COLOUR_3DLIGHT
but I haven't tried using many color schemes to see if this is always
correct.

The real problem is that when you pass a wxNullColour to wxPython it doesn't
automatically use the correct background and foreground colors. I think this
is a bug, but if the behavior of wxWindows/wxPython isn't going to change,
we'll need to special-case the default color when the user specifies a color
of 'none'.

There is a bug that I haven't been able to solve yet that occurs when you
have a widget selected and then open a different .rsrc.py file that has a
widget with the same name; this would most likely be a reload of the
currently open .rsrc.py file. What I think is happening is that a mouse
event is occurring when you select the file in the Open File dialog and
somehow that is being sent to the background. In between hiding the sizing
handles, deleting old widgets and creating new ones, the widget ends up
getting moved and a KeyError is generated when accessing the list. I'm still
investigating, but if you have any ideas let me know.

ka