Fix #23828: Very slow wireframe view with large data set

This occurred since we were drawing every object in every relation (including
nodes of ways) even if those objects were not in view. We fix that by only
drawing objects that are inside the current viewing area.

git-svn-id: https://josm.openstreetmap.de/svn/trunk@19166 0c6e7542-c601-0410-84e7-c038aed88b3b

src/org/openstreetmap/josm/data/osm/visitor/paint/WireframeMapRenderer.java

@@ -177,6 +177,7 @@ public void render(OsmData<?, ?, ?, ?> data, boolean virtual, Bounds bounds) {
                     way.accept(this);
                 }
             }
+            displaySegments();
         }
         displaySegments();
 
@@ -351,18 +352,19 @@ public void visit(IRelation<?> r) {
         }
         g.setColor(col);
 
+        Bounds viewArea = mapState.getViewArea().getLatLonBoundsBox();
         for (IRelationMember<?> m : r.getMembers()) {
             if (m.getMember().isIncomplete() || !m.getMember().isDrawable()) {
                 continue;
             }
 
-            if (m.isNode()) {
+            if (m.isNode() && viewArea.contains((INode) m.getMember())) {
                 MapViewPoint p = mapState.getPointFor((INode) m.getMember());
                 if (p.isInView()) {
                     g.draw(new Ellipse2D.Double(p.getInViewX()-4, p.getInViewY()-4, 9, 9));
                 }
 
-            } else if (m.isWay()) {
+            } else if (m.isWay() && viewArea.contains(m.getMember().getBBox())) {
                 GeneralPath path = new GeneralPath();
 
                 boolean first = true;