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

[Morper-Busch, Lucia]

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> 

 

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