Add swatches/legend to the TOC viewer component about arcgis-viewer-flex

[jcfranco]

Merge branch '#12_add-legend-items-to-toc' into develop 743d268

[rscheitlin]

The MapSwitcherWidget.mxml need to pass the includeLegendItems var to the toc component. and the includeLegendsItems var needs to be Bindable.

[rscheitlin]

Sarthak, I have ran into a situation where layerLegendInfo is null in the getLayerLegendInfo function and in the getLayerLegendInfos function when you check if layerLegendInfo.layerLegendInfos exists.

I use a RasterCatalog layer for testing as it does not produce a LayerLegendInfo;
Also if you use this layer it will have a (?) beside it (which to me is undesirable)

[rscheitlin]

Sartak,
I have found if you add label = (legendItemInfo.label)?legendItemInfo.label:" "; when the TocLegendItem is created then you can avoid the DEFAULT_LABEL of the TocItem.

[sarthakdatt]

Robert,

Are you getting the same response on getLegendResult() for the layerLegendInfos(has one layerlegendInfo as expected):
(com.esri.ags.layers.supportClasses::LayerLegendInfo)#0
layerId = "Polygons"
layerLegendInfos = (null)
layerName = "Polygons"
layerType = (null)
legendItemInfos = (Array)#1
0#2
height = NaN
label = ""
symbol = (com.esri.ags.symbols::SimpleFillSymbol)#3
alpha = 1
color = 7556096
outline = (com.esri.ags.symbols::SimpleLineSymbol)#4
alpha = 1
color = 7237230
style = "solid"
width = 1.3333333333333333
style = "solid"
values = (null)
width = NaN
maxScale = 0
minScale = 0
visible = true

"I have found if you add label = (legendItemInfo.label)?legendItemInfo.label:" "; when the TocLegendItem is created then you can avoid the DEFAULT_LABEL of the TocItem."

Yes, i thought about that too, wasn't sure if we wanted to have a different default for legend items. Will try and come up with something.

[rscheitlin]

Sarthak,
Yes for that layer I do get the same response. But for a layer like a raster catalog layer it just returns something like this: {"layers":[]}
Robert

[sarthakdatt]

Ok, will take care of that use case and update accordingly.