[Bug #1073] Add dependencies with its parent when a milestone is added.

A new operation in the Adapter was implemented. Also the Milestone class was
modified to store a reference to its parent.

FEA: ItEr75S04BugFixing

ganttzk/src/main/java/org/zkoss/ganttz/FunctionalityExposedForExtensions.java

@@ -221,6 +221,9 @@ public class FunctionalityExposedForExtensions<T> implements IContext<T> {
                         accumulatedDependencies, child));
                 i++;
             }
+        } else if (navigator.isMilestone(data)) {
+            Milestone milestone = (Milestone) data;
+            milestone.setOwner(position.getParent());
         }
 
         result.setShowingReportedHours(planner.showReportedHoursRightNow());

ganttzk/src/main/java/org/zkoss/ganttz/data/GanttDiagramGraph.java

@@ -87,6 +87,8 @@ public class GanttDiagramGraph<V, D extends IDependency<V>> implements
     public interface IAdapter<V, D extends IDependency<V>> {
         List<V> getChildren(V task);
 
+        V getOwner(V task);
+
         boolean isContainer(V task);
 
         void registerDependenciesEnforcerHookOn(V task,
@@ -131,6 +133,15 @@ public class GanttDiagramGraph<V, D extends IDependency<V>> implements
             return task.getTasks();
         }
 
+        @Override
+        public Task getOwner(Task task) {
+            if (task instanceof Milestone) {
+                Milestone milestone = (Milestone) task;
+                return milestone.getOwner();
+            }
+            return null;
+        }
+
         @Override
         public Task getDestination(Dependency dependency) {
             return dependency.getDestination();
@@ -513,6 +524,14 @@ public class GanttDiagramGraph<V, D extends IDependency<V>> implements
                     dependenciesToAdd.add(adapter.createInvisibleDependency(
                             task, child, DependencyType.START_START));
                 }
+            } else {
+                V owner = adapter.getOwner(task);
+                if(owner != null) {
+                    dependenciesToAdd.add(adapter.createInvisibleDependency(
+                            task, owner, DependencyType.END_END));
+                    dependenciesToAdd.add(adapter.createInvisibleDependency(
+                            owner, task, DependencyType.START_START));
+                }
             }
         }
         for (D each : dependenciesToAdd) {

ganttzk/src/main/java/org/zkoss/ganttz/data/Milestone.java

@@ -35,6 +35,8 @@ public class Milestone extends Task {
 
     private List<Task> tasks = new ArrayList<Task>();
 
+    private TaskContainer owner;
+
     private boolean expanded = false;
 
     @Override
@@ -73,4 +75,12 @@ public class Milestone extends Task {
         return true;
     }
 
+    public void setOwner(TaskContainer owner) {
+        this.owner = owner;
+    }
+
+    public TaskContainer getOwner() {
+        return this.owner;
+    }
+
 }

libreplan-webapp/src/main/java/org/libreplan/web/common/TemplateModelAdapter.java

@@ -93,6 +93,11 @@ public class TemplateModelAdapter implements
         }
     }
 
+    @Override
+    public TaskElement getOwner(TaskElement task) {
+        return task.getParent();
+    }
+
     @Override
     public Class<DependencyWithVisibility> getDependencyType() {
         return DependencyWithVisibility.class;