Hi Guillaume,
On 26. 02. 14 10:15, Guillaume GIMENO wrote:
Hi,
I am working on a plugin and want to get a signal
when the
symbology
of a vector layer is changed by the user. In the doc, there is a
signal that seems to fit (
http://qgis.org/api/classQgsVectorLayer.html#a403f235d3743aa59bb3aad69a72a5705
)
.
I have
tried two
method
s
called :
QObject.connect(self.iface.activeLayer(),
SIGNAL("rendererChanged()"), self.DoSomething)
I have also tried :
self.iface.activeLayer().rendererChanged.connect(self.DoSomething)
On os x mavericks nothing happens with the first method and for the
second I have a error :
AttributeError: 'QgsVectorLayer' object has no attribute
'rendererChanged'
I can't tell why, but you should use the second method as it is the new
signal/slot connection style.
But on Debian, I can get the signal but just for the layer which is
selected when the plugin is run ; On the other layers, if I change the
color, nothing happens.
This is because iface.activeLayer() is the currently selected layer in
the legend. [0]
If you want to do so, you might want to connect all layers by browsing
them using:
iface.mapCanvas().layers() if you want all the displayed layers actually
displayed in the map
or
QgsMapLayerRegistry.instance(). mapLayers() if you want all the layers
Cheers,
Denis
[0]
http://qgis.org/api/classQgisInterface.html#a231f32fbf95004aebb067cb98f3a391c
_______________________________________________
Qgis-developer mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/qgis-developer
