category - widgetsgood first issuetype - enhancement
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Description
When creating a ProviderViewModel, the iconUrl points to a single image.
For example, as per the documentation:
imageryViewModels.push(new Cesium.ProviderViewModel({
name : 'Open\u00adStreet\u00adMap',
iconUrl : Cesium.buildModuleUrl('Widgets/Images/ImageryProviders/openStreetMap.png'),
tooltip : 'OpenStreetMap (OSM) is a collaborative project to create a free editable \
map of the world.\nhttp://www.openstreetmap.org',
creationFunction : function() {
return Cesium.createOpenStreetMapImageryProvider({
url : '//a.tile.openstreetmap.org/'
});
}
}));
However as a class cannot be specified, it is not possible to use CSS sprites (i.e. bundling multiple icons in the same image).
A possible fix would be that of modifying Widgets/BaseLayerPicker/BaseLayerPicker.js, so that instead of
providerIcon.className = 'cesium-baseLayerPicker-itemIcon';
the assigned class were something like:
providerIcon.className = 'cesium-baseLayerPicker-itemIcon <uniqueClassName>';
I can create a Pull Request if I get guidance on how to generate the unique class.