public AdornmentLayer(IWpfTextView textView, LayerKind layerKind, MetadataAndOrder <IAdornmentLayersMetadata> info)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
this.layerKind = layerKind;
Info = info;
adornmentLayerElements = new List <AdornmentLayerElement>();
}
int GetInsertIndex(MetadataAndOrder<IAdornmentLayersMetadata> info) {
for (int i = 0; i < adornmentLayers.Count; i++) {
if (info.Order < adornmentLayers[i].Info.Order)
return i;
}
return adornmentLayers.Count;
}
AdornmentLayer Create(MetadataAndOrder<IAdornmentLayersMetadata> info) {
var layer = new AdornmentLayer(wpfTextView, layerKind, info);
int index = GetInsertIndex(info);
adornmentLayers.Insert(index, layer);
Children.Insert(index, layer);
return layer;
}
public IAdornmentLayer GetAdornmentLayer(MetadataAndOrder <IAdornmentLayersMetadata> info)
{
var layer = adornmentLayers.FirstOrDefault(a => a.Info.Metadata == info.Metadata);
if (layer is null)
{
layer = Create(info);
}
return(layer);
}