Changeset 2655 in josm for trunk/src/org/openstreetmap/josm/gui/dialogs/LayerListDialog.java

Timestamp:

2009-12-19T10:47:49+01:00 (16 years ago)

Author:

jttt

Message:

Fixed #4161 Major slowdown in recent versions, used correct pattern for listeners realized using CopyOnWriteArrayList

File:

• trunk/src/org/openstreetmap/josm/gui/dialogs/LayerListDialog.java (modified) (2 diffs)

trunk/src/org/openstreetmap/josm/gui/dialogs/LayerListDialog.java

@@ -642 +642 @@
          */
         public void addLayerListModelListener(LayerListModelListener listener) {
-            synchronized(listeners) {
-                if (listener != null && !listeners.contains(listener)) {
-                    listeners.add(listener);
-                }
+            if (listener != null) {
+                listeners.addIfAbsent(listener);
             }
         }
@@ -655 +653 @@
          */
         public void removeLayerListModelListener(LayerListModelListener listener) {
-            synchronized(listeners) {
-                if (listener != null && listeners.contains(listener)) {
-                    listeners.remove(listener);
-                }
-            }
+            listeners.remove(listener);
         }