Bug #1343: Added method isRoot() to gantt tasks.

With this method we will be able to know which tasks are projects.

FEA: ItEr76S04BugFixing

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

@@ -272,4 +272,9 @@ public class DefaultFundamentalProperties implements ITaskFundamentalProperties
         return false;
     }
 
+    @Override
+    public boolean isRoot() {
+        return false;
+    }
+
 }

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

@@ -109,4 +109,6 @@ public interface ITaskFundamentalProperties {
 
     public boolean belongsClosedProject();
 
+    public boolean isRoot();
+
 }

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

@@ -460,4 +460,8 @@ public abstract class Task implements ITaskFundamentalProperties {
         return fundamentalProperties.belongsClosedProject();
     }
 
+    public boolean isRoot() {
+        return fundamentalProperties.isRoot();
+    }
+
 }

libreplan-business/src/main/java/org/libreplan/business/planner/entities/TaskElement.java

@@ -739,4 +739,8 @@ public abstract class TaskElement extends BaseEntity {
         setAdvancePercentage(getOrderElement().getAdvancePercentage());
     }
 
+    public Boolean isRoot() {
+        return (this.getParent() == null);
+    }
+
 }

libreplan-webapp/src/main/java/org/libreplan/web/planner/TaskElementAdapter.java

@@ -1112,6 +1112,11 @@ public class TaskElementAdapter {
                 return taskElement.belongsClosedProject();
             }
 
+            @Override
+            public boolean isRoot() {
+                return taskElement.isRoot();
+            }
+
         }
 
         @Override