Some refactoring

projects/common-map/src/fm-map/models/item.layer.ts

@@ -1,26 +1,49 @@
-import { IItem } from '@farmmaps/common';
-import {Layer} from 'ol/layer';
-
-export interface IItemLayer  {
-  item: IItem,
-  layer: Layer,
-  visible: boolean,
-  legendVisible:boolean,
-  projection: string,
-  opacity: number,
-  layerIndex:number
-}
-
-export class ItemLayer implements IItemLayer {
-  public item: IItem;
-  public layer: Layer = null;
-  public visible: boolean = true;
-  public legendVisible: boolean = false;
-  public projection: string;
-  public opacity: number = 1;
-  public layerIndex: number = -1;
-
-  constructor(item:IItem) {
-    this.item = item;
-  }
-}
+import { IItem,IListItem } from '@farmmaps/common';
+import {Layer} from 'ol/layer';
+
+export interface IItemLayer  {
+  item: IItem,
+  layer: Layer,
+  visible: boolean,
+  legendVisible:boolean,
+  projection: string,
+  opacity: number,
+  layerIndex:number
+}
+
+export class ItemLayer implements IItemLayer {
+  public item: IItem;
+  public layer: Layer = null;
+  public visible: boolean = true;
+  public legendVisible: boolean = false;
+  public projection: string;
+  public opacity: number = 1;
+  public layerIndex: number = -1;
+
+  constructor(item:IItem) {
+    this.item = item;
+  }
+}
+
+export interface ITemporalItemLayer extends IItemLayer {
+  previousLayer: Layer
+  selectedLayer: Layer,
+  nextLayer: Layer
+  temporalItems: IListItem[],
+  selectedItem: IListItem
+}
+
+export class TemporalItemLayer extends ItemLayer implements ITemporalItemLayer {
+  public previousLayer:Layer = null;
+  public selectedLayer:Layer = null;
+  public nextLayer:Layer = null;
+  public temporalItems:IListItem[] = [];
+  public selectedItem:IListItem =null;
+
+  constructor(item:IItem) {
+   super(item)
+  }
+}
+
+
+