image scaleType add an enumeration ScaleToTile.

doric-js/src/widget/image.ts

@@ -23,6 +23,7 @@ export enum ScaleType {
     ScaleToFill = 0,
     ScaleAspectFit,
     ScaleAspectFill,
+    ScaleToTile,  // image tile mode
 }
 
 export class Image extends View {
@@ -120,21 +121,6 @@ export class Image extends View {
         bottom: number
     }
 
-     /**
-     * image tile
-     * 
-     * If boolean value 'true' is passed, it equals { left: 0, top: 0, right: 0, bottom: 0 }
-     * Android: only support all area tile, so you'd better pass boolean value.
-     * iOS: support custom area tile, so you can pass object value and boolean value.
-     */
-    @Property
-    tileInset?: {
-        left: number,
-        top: number,
-        right: number,
-        bottom: number
-    } | boolean
-
     /**
      * Called if loaded image is animated and played end.
      */