add fill_nearest

Author: jcupitt

ChangeLog

@@ -2,6 +2,7 @@ started 8.6.0 16/8/17
 - add scRGB support
 - improve radiance support
 - add composite to alpha menu
+- add Image / Select / Fill 
 
 started 8.5.1 22/1/17
 - fix a crash bug

share/nip2/start/_joe_extra.def

@@ -362,6 +362,41 @@ Select_item = class
 		}
 	}
 
+	Fill_item = class
+		Menuaction "_Fill" "fill zero pixels with the nearest non-zero" {
+		action x = class 
+			Image _result {
+			_vislevel = 3;
+
+			distance = Image _distance;
+
+			[_result, _distance] = vips_call "fill_nearest" [x.value] [
+				"distance" => true
+			];
+		}
+	}
+
+fill_nearest x 
+	= oo_unary_function nearest_op x, is_class x
+	= near x, is_image x 
+	= error (_ "bad arguments to " ++ "fill_nearest")
+{
+	nearest_op = Operator "fill_nearest" 
+		fill_nearest Operator_type.COMPOUND_REWRAP false;
+
+	near x
+		= [out, distance]
+	{
+		[out, distance] = vips_call "fill_nearest" [x] [
+			"distance" => true
+		];
+	}
+}
+
+
+
+
+
 	};
 
 ////////////////////////////////////////////////////////////////////////////////////

share/nip2/start/_stdenv.def

@@ -2593,5 +2593,3 @@ hist_entropy x
 		];
 	}
 }
-
-