Re: [Changeset]: Re: cla() ?

[John W. Eaton]

On 10-Oct-2008, Ben Abbott wrote:

| 
| On Oct 10, 2008, at 7:44 AM, Michael Goffioul wrote:
| 
| > On Fri, Oct 10, 2008 at 1:40 PM, Ben Abbott <address@hidden> wrote:
| >> It does not appear that __go_delete__ does the job properly either.
| >>
| >> octave-3.1.51+:1> figure(1)
| >> octave-3.1.51+:2> axis
| >> ans =
| >>  0   1   0   1   0   1
| >> octave-3.1.51+:3> gca
| >> ans = -1.3284
| >> octave-3.1.51+:4> delete(gca)
| >> octave-3.1.51+:5> get(gcf,'currentaxes')
| >> ans = -1.3284
| >
| > That's not the problem. __go_delete__ should just make
| > sure that get(gcf,'children') does not contain the axes
| > handle anymore. In the case above, the figure object should
| > catch the child removal and update currentaxes accordingly.
| > In practice, figure::properties::remove_child overload is
| > missing.
| >
| > Michael.
| 
| ok!
| 
|  From my naive position that looks like a simple change. Might someone  
| take care of that?

I would, but I don't know precisely what the
figure::properties::remove_child function should do.   I assume it
would be something like

  void
  figure::properties::remove_child (const graphics_handle& h)
  {
    if (h.ok () && h == currentaxes.handle_value ())
      xset (0, "currentaxes", ???);

    base_properties::remove_child (h);
  }

but I don't know how to determine which axes should become the new
currentaxes.

jwe