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

[Alexandre Dube]

Hi Lucia,

   Could you share a small minimized demo (ideally a live one) of what 
you're doing ?  That way, it would be easier to help.

Regards,

Alexandre


On 11-03-30 06:01 AM, Morper-Busch, Lucia wrote:
>
> Hello GeoExt users,
>
> after long searching for a solution I found the *OpacitySliderPlugin*, 
> now renamed to *ContextMenuPlugin* 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 with *SliderOptions* 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 <http://www.zgis.at/research>/*
>
> *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 <http://www.zgis.at/research>/*
>
>
> _______________________________________________
> Users mailing list
> Users at geoext.org
> http://www.geoext.org/cgi-bin/mailman/listinfo/users


-- 
Alexandre Dubé
Mapgears
www.mapgears.com

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