[Qgis-developer] Python: groups in QgsLegendInterface()

[Marco Bernasocchi]

Hi Chris,
On 06/14/2011 09:14 PM, Chris Crook wrote:
> Hi Marco
>
> I realise I've been very slow to reply.  Thanks for the pointer to this .. I see that you are using the same approach, basically the group id is the index of the group name in the groupLayerRelationship() list.
>
> This seems to work, but from an API point of view it does seem very indirect.  I haven't looked at the underlying code but I'd have thought it better for groups to have a unique id in the same way as layers, and to be able to use this to assign layers (and other groups?) to groups.  Not something I have time to consider at the moment :-(
I know, when I added the support for adding nested groups, I asked Marco 
Hugentobler and he said that the whole legend could use a bit more of 
"love", but at the moment I was (and still am) very short on time as 
well. thus the "temporary" solution
> Thanks
> Chris
ciao Marco
>> -----Original Message-----
>> From: Marco Bernasocchi [mailto:marco at bernawebdesign.ch]
>> Sent: Friday, 10 June 2011 7:51 p.m.
>> To: Chris Crook
>> Cc: qgis-developer-request at lists.osgeo.org
>> Subject: Re: [Qgis-developer] Python: groups in QgsLegendInterface()
>>
>> Hi
>> On 06/10/2011 04:05 AM, Chris Crook wrote:
>>> Hi All
>>>
>>> How can I determine the group index of a group containing a layer?
>>>
>> have  a look at [0] it is th data loader for my temporal data
>> plugin, It generates new groups and adds layers
>> programmatically. Please note that it is not possible [yet]
>> to nest groups deeper than a level due to the legend model.
>>> Basically I'm creating a new layer, and wanting to add it
>> to the same group as a new layer. It looks like the only way
>> to add a layer to a group is via the group index.  But I
>> can't see any way to determine the group index of an existing layer.
>>> The nearest I've got is
>>>
>>>     [i for i,x in enumerate(legend.groupLayerRelationship()) if
>>> layer.id() in x[1]]
>>>
>>> But this doesn't work with nested groups.
>>>
>>> Any other suggestions?
>>>
>>> Thanks
>>> Chris
>>>
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>> Ciao
>> Marco
>> [0]
>> http://hub.qgis.org/projects/multiview/repository/revisions/ma
>> ster/entry/temporalrasterloaderdialog.py
>>
>>
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