Hi,
You are in luck. All objects in the main model are EMF objects which
have a eSetDeliver method. So if you set the visibility of a layer
you need to disable the layer's events if you dont want it to fire.
So for your example:
1) ((Map)map).eSetDeliver( false );
2) foreach layer ((Layer)layer).eSetDeliver( false );
3) Turn layers' visibility on/off
4) map.setBbox( selectedLayer.getBbox() )
5) ((Map)map).eSetDeliver( true );
6) foreach layer ((Layer)layer).eSetDeliver( true );
7) map.refresh()
Jesse
On 18-Dec-08, at 11:06 AM, Ugo Taddei wrote:
Hello,
we have built a widget that replaces some of the functionality
provided by the LayersView. It's basically a combo box with the
current layers, and which sets the visibility for all layers to be
false, except the one chosen by the combo. Furthermore, on
selecting, the map should zoom to the layer's bbox. Like this (in
pseudo):
1) User selects layer on combo?
2) for each layer
if layer is not selected layer -> setVisible( false )
else setVisible( true )
map refreshes here!
3) map.setBbox( selectedLayer.getBbox() )
map refreshes again!
This all works fine. However, there are two events (or more) being
triggered: layer visibility (implies a map refresh), jump to bbox
(another map refresh).
Is there a way to temporarily disable map refresh? As in
1) map.setFiringEvents( false );
2) Turn layers' visibility on/off
3) map.setBbox( selectedLayer.getBbox() )
4) map.setFiringEvents( true );
5) map.refresh()
Thanks in advance,
Ugo
--
Ugo Taddei
Fraunhofer Institut Intelligente Analyse- und Informationssysteme
(FhG IAIS)
http://www.iais.fraunhofer.de
Department Knowledge Discovery - IAIS.KD -
Working Group Spatial Decision Support
http://www.iais.fraunhofer.de/kd.html
phone (+49)2241-14-2184 fax (+49)2241-14-2072
Schloss Birlinghoven, D-53754 Sankt Augustin, Germany
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User-friendly Desktop Internet GIS (uDig)
http://udig.refractions.net
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_______________________________________________
User-friendly Desktop Internet GIS (uDig)
http://udig.refractions.net
http://lists.refractions.net/mailman/listinfo/udig-devel
