Hi, just listen for the changelayer event on the Map, and check for evt.property == "visibility".
Best regards, Bart -- Looking for flexible support on OpenLayers or GeoExt? Please check out http://www.osgis.nl/support.html Bart van den Eijnden OSGIS bart...@osgis.nl On Mar 16, 2011, at 12:42 PM, Martin Saturka wrote: > Hi, > I could not find an event for situations when a layer is switched (by > the LayerSwitcher control). I did put a hook there for checking, but > may be that there is a better way for that. Could we have mentioned > that another better way somewhere, or to have a hook at the switcher, > like below, please? > > OpenLayers.Control.LayerSwitcherMod = > OpenLayers.Class(OpenLayers.Control.LayerSwitcher, { > checkRedraw: function() { > var redraw = false; > if ( !this.layerStates.length || > (this.map.layers.length != this.layerStates.length) ) { > redraw = true; > } else { > for (var i=0, len=this.layerStates.length; i<len; i++) { > var layerState = this.layerStates[i]; > var layer = this.map.layers[i]; > if ( (layerState.name != layer.name) || > (layerState.inRange != layer.inRange) || > (layerState.id != layer.id) || > (layerState.visibility != layer.visibility) ) { > redraw = true; > break; > } > } > } > > if (redraw) > { > OpenLayers.Hooks.LayerSwitcher.layerSwitched(this); > } > > return redraw; > }, > > CLASS_NAME: "OpenLayers.Control.LayerSwitcher" > }); > > M. > > -- > Martin Saturka > Software Engineer, Sourcefabric > www.sourcefabric.org > _______________________________________________ > Dev mailing list > d...@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/openlayers-dev > _______________________________________________ Dev mailing list d...@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/openlayers-dev
