[QGIS-trac] Re: [Quantum GIS] #2492: Legend fails to update when layer visibility is changed during QgsMapCanvas::setLayerSet

[Quantum GIS]

#2492: Legend fails to update when layer visibility is changed during
QgsMapCanvas::setLayerSet
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        Reporter:  audun                             |         Owner:  mhugent      
            Type:  patch                             |        Status:  new          
        Priority:  major: does not work as expected  |     Milestone:  Version 1.5.0
       Component:  Map Legend                        |       Version:  HEAD         
      Resolution:                                    |      Keywords:               
Platform_version:                                    |      Platform:  All          
        Must_fix:  No                                |   Status_info:  0            
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Comment (by mhugent):

 Could you test with your plugin the following case:
 You have legend groups with several layers in it and you change the
 visibility of a layer inside the group by plugin. Let's say the layers are
 all visible, but the plugin changes one to not visible. Does the group
 check box change to partially checked (as it should)?

 If yes, it's ok. If not, you might need to add, in the function
 'refreshCheckStates()' another loop that goes through all the groups and
 calls QgsLegendGroup::updateCheckState() for each.

 Regards,
 Marco

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Ticket URL: <http://trac.osgeo.org/qgis/ticket/2492#comment:3>
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