Changeset 3653 in josm for trunk/src/org/openstreetmap/josm/data/osm/OsmPrimitive.java

Timestamp:

2010-11-14T17:54:23+01:00 (15 years ago)

Author:

bastiK

Message:

applied #5627 (patch by bilbo) - Speedup of node drawing

File:

• trunk/src/org/openstreetmap/josm/data/osm/OsmPrimitive.java (modified) (1 diff)

trunk/src/org/openstreetmap/josm/data/osm/OsmPrimitive.java

@@ -1286 +1286 @@
     }
 
+    /**
+      Return true, if this primitive is referred by at least n ways
+      @param n Minimal number of ways to return true. Must be positive
+     */
+    public final boolean isReferredByWays(int n) {
+        // Count only referrers that are members of the same dataset (primitive can have some fake references, for example
+        // when way is cloned
+        Object referrers = this.referrers;
+        if (referrers == null) return false;
+        checkDataset();
+        if (referrers instanceof OsmPrimitive) {
+          return n<=1 && referrers instanceof Way && ((OsmPrimitive)referrers).dataSet == dataSet;
+        } else {
+          int counter=0;
+          for (OsmPrimitive o : (OsmPrimitive[])referrers) {
+            if (dataSet == o.dataSet && o instanceof Way) {
+              if (++counter >= n) 
+                return true;
+            }
+          }
+          return false;
+        }
+    }
+
+
     /*-----------------
      * OTHER METHODS