Changeset 1856 in josm for trunk/src/org/openstreetmap/josm/data

Timestamp:

2009-07-26T17:03:00+02:00 (17 years ago)

Author:

Gubaer

Message:

improved deleting relations

Location:

trunk/src/org/openstreetmap/josm/data/osm

Files:

• DataSet.java (modified) (2 diffs)
• RelationMember.java (modified) (1 diff)

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

@@ -3 +3 @@
 
 import java.awt.geom.Area;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
@@ -422 +423 @@
     }
 
-
+    /**
+     * Replies a list of parent relations which refer to the relation
+     * <code>child</code>. Replies an empty list if child is null.
+     * 
+     * @param child the child relation
+     * @return a list of parent relations which refer to the relation
+     * <code>child</code>
+     */
+    public List<Relation> getParentRelations(Relation child) {
+        ArrayList<Relation> parents = new ArrayList<Relation>();
+        if (child == null)
+            return parents;
+        for (Relation parent : relations) {
+            if (parent == child) {
+                continue;
+            }
+            for (RelationMember member: parent.members) {
+                if (member.refersTo(child)) {
+                    parents.add(parent);
+                    break;
+                }
+            }
+        }
+        return parents;
+    }
 }

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

@@ -36 +36 @@
     }
 
+    /**
+     * Replies true, if this relation member refers to the primitive
+     * 
+     * @param primitive  the primitive to check
+     * @return true, if this relation member refers to the primitive
+     */
+    public boolean refersTo(OsmPrimitive primitive) {
+        if (primitive == null) return false;
+        if (member == null) return false;
+        return member == primitive;
+    }
+
     @Override
     public int hashCode() {