[Users] OpacitySlider for each Layer in a LayerTree(LayerTreeBuilder)

[Andreas Hocevar]

Hi,

the easiest way to see what is new in GeoExt is to use the trunk documentation at http://dev.geoext.org/docs/docs.html. It is auto-generated from svn trunk after every commit.

Hope this helps.
Andreas.

On Mar 30, 2011, at 12:01 , Morper-Busch, Lucia wrote:

> Hello GeoExt users,
>  
> after long searching for a solution I found the OpacitySliderPlugin, now renamed toContextMenuPlugin to integrate into the LayerTree.
> I inserted the ContextMenuPlugin with a LayerOpacitySliderTip-Plugin in the LayerTreeBuilder.js and now it does what I want:
> Code snippet of LayerTreeBuilder.js:
>  
> initComponent: function(){
>     this.addEvents(this.CUSTOM_EVENTS);
>    
>      this.plugins = this.plugins || [];
>     this.plugins.push({ptype: "gx_treenodecomponent"});
>     this.plugins.push(new GeoExt.ux.plugins.LayerTreeBuilderNodeAgent());
>      //Context menu with opacity slider, added by Lucia:
>     this.plugins.push(new GeoExt.tree.ContextMenuPlugin({
>           sliderOptions:{
>                 aggressive: true,
>                 plugins: new GeoExt.LayerOpacitySliderTip()
>                }
>           })
>      );  
>                
>      GeoExt.ux.tree.LayerTreeBuilder.superclass.initComponent.call(this);
>     if(!this.layerStore) {
>         this.layerStore = GeoExt.MapPanel.guess().layers;
>     }
>    
>      this.layerStore.on({
>         "add": this.onLayerAdded,
>         "remove": this.onLayerRemoved,
>         scope: this
>     });
>    
>      this.layerStore.treeBuilder = this;
> },
>  
> Three remarks:
> 1. It’s hard to find new developments. I’m searching always with key words like “opacity slider” “layertree” and similar. In my opinion there is a lack of finding the latest improvements. The code examples are not linked to these key words, isn’t it?
> 2.It would be nice for a boolean option of the LayerTreeBuilder to set “ContextMenu: true/false”, without manipulating the code of the LayerTreeBuilder.js itself. Maybe also withSliderOptions for a possible integrating of the very useful LayerOpacitySliderTip.
> 3. There is a Error executing the new code: "this.dom.style is null or not an object" referring to ext-all.js.
> Does anybody know how to fix it?
>  
> Thanks
> Lucia
>  
> Dipl.-Geogr. Lucia Morper-Busch | Researcher
> University of Salzburg | Centre for Geoinformatics - Z_GIS
> Schillerstr.30 | Techno-Z, Block 15, 3rd floor | 5020 Salzburg, Austria
> Phone +43 (0)662 8044 5298 | Fax +43 (0)662 8044 5260
> > Z_GIS…experts for the spatial view
>  
> Von: users-bounces at geoext.org [mailto:users-bounces at geoext.org] Im Auftrag von Morper-Busch, Lucia
> Gesendet: Dienstag, 29. März 2011 15:06
> An: users at geoext.org
> Betreff: [Users] OpacitySlider for each Layer in a LayerTree(LayerTreeBuilder)
>  
> Hi GeoExt users,
> I have a second question:
> Do anybody know how to combine LayerTreeBuilder with a OpacitySlider for each visible layer in the tree?
> I managed only either legend or OpacitySlider, but I want both!
> Thank you
> Lucia
>  
> Dipl.-Geogr. Lucia Morper-Busch | Researcher
> University of Salzburg | Centre for Geoinformatics - Z_GIS
> Schillerstr.30 | Techno-Z, Block 15, 3rd floor | 5020 Salzburg, Austria
> Phone +43 (0)662 8044 5298 | Fax +43 (0)662 8044 5260
> > Z_GIS…experts for the spatial view
>  
> _______________________________________________
> Users mailing list
> Users at geoext.org
> http://www.geoext.org/cgi-bin/mailman/listinfo/users



-- 
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.