Changeset 8003

Timestamp:

09/12/08 03:58:23 (2 years ago)

Author:

tschaub

Message:

Adding paging and cluster strategies. The paging strategy intercepts a batch of features bound for the layer and caches them, giving the layer one page at a time. The cluster strategy intercepts a batch of features and groups proximate features as clusters - giving the clusters to the layer instead. Thanks for the careful review Erik. r=euzuro (see #1606).

Files:

• trunk/openlayers/examples/animator.js (added)
• trunk/openlayers/examples/strategy-cluster.html (added)
• trunk/openlayers/examples/strategy-paging.html (added)
• trunk/openlayers/lib/OpenLayers.js (modified) (1 diff)
• trunk/openlayers/lib/OpenLayers/Layer/Vector.js (modified) (4 diffs)
• trunk/openlayers/lib/OpenLayers/Strategy/Cluster.js (added)
• trunk/openlayers/lib/OpenLayers/Strategy/Paging.js (added)
• trunk/openlayers/tests/Strategy/Cluster.html (added)
• trunk/openlayers/tests/Strategy/Paging.html (added)
• trunk/openlayers/tests/list-tests.html (modified) (1 diff)

trunk/openlayers/lib/OpenLayers.js

@@ -186 +186 @@
-            "OpenLayers/Strategy.js",
-            "OpenLayers/Strategy/Fixed.js",
+            "OpenLayers/Strategy/Cluster.js",
+            "OpenLayers/Strategy/Paging.js",
-            "OpenLayers/Strategy/BBOX.js",
-            "OpenLayers/Protocol.js",

trunk/openlayers/lib/OpenLayers/Layer/Vector.js

@@ -39 +39 @@
-     *  - *beforefeatureadded* Triggered before a feature is added.  Listeners
-     *      will receive an object with a *feature* property referencing the
-
+
+
+
+
+
+
-     *  - *featureadded* Triggered after a feature is added.  The event
-     *      object passed to listeners will have a *feature* property with a
@@ -73 +78 @@
-     *      for a new set of features.
-     */
-
+
+
-                  "beforefeatureremoved", "featureremoved", "featuresremoved",
-                  "beforefeatureselected", "featureselected", "featureunselected", 
@@ -444 +450 @@
-        
-        var notify = !options || !options.silent;
+        if(notify) {
+            var event = {features: features};
+            var ret = this.events.triggerEvent("beforefeaturesadded", event);
+            if(ret === false) {
+                return;
+            }
+            features = event.features;
+        }
+        
-
-        for (var i=0, len=features.length; i<len; i++) {
@@ -470 +485 @@
-
-            if (notify) {
-
-
-
+
+
+
+
-                this.preFeatureInsert(feature);
-            }

trunk/openlayers/tests/list-tests.html

@@ -125 +125 @@
-    <li>Rule.html</li>
-    <li>Strategy.html</li>
+    <li>Strategy/Cluster.html</li>
-    <li>Strategy/Fixed.html</li>
+    <li>Strategy/Paging.html</li>
-    <li>Strategy/BBOX.html</li>
-    <li>Style.html</li>