Heron.widgets.LayerCombo

Extends

• Ext.form.ComboBox

xtype

hr_layercombo

Example Use

Sample code showing how to configure a Heron LayerCombo. Note the main config layerFilter, a function to select a subset of Layers from the Map. Default is all Map Layers. When a Layer is selected the ‘selectlayer’ event is fired.

{
    xtype: "hr_layercombo",
    id: "hr_layercombo",

    layerFilter: function (map) {
        return map.getLayersByClass('OpenLayers.Layer.WMS');
    }
}

Config Options

Configuration properties in addition to those listed for Ext.form.ComboBox.

emptyText

See http://www.dev.sencha.com/deploy/dev/docs/source/TextField.html#cfg-Ext.form.TextField-emptyText, default value is “Choose a Base Layer”.

listWidth

See http://www.dev.sencha.com/deploy/dev/docs/source/Combo.html#cfg-Ext.form.ComboBox-listWidth, default value is 140.

map

OpenLayers.Map or Object A configured map or a configuration object for the map constructor, required only if zoom is set to value greater than or equal to 0.

selectFirst

Boolean utomatically select the first layer? Default false.

sortOrder

String How should the layer names be sorted in the selector, ‘ASC’, ‘DESC’ or null (as Map order)? default value is ‘ASC’ (Alphabetically Ascending).

store

GeoExt.data.LayerStore A configured LayerStore

tooltip

See http://www.dev.sencha.com/deploy/dev/docs/source/TextField.html#cfg-Ext.form.TextField-emptyText, default value is “Basemaps”.

width

See http://www.dev.sencha.com/deploy/dev/docs/source/BoxComponent.html#cfg-Ext.BoxComponent-width, default value is 140.