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hrmsEjb/net/sf/jasperreports/engine/design/JRDesignElementGroup.java

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+package net.sf.jasperreports.engine.design;
+
+import net.sf.jasperreports.engine.JRElementGroup;
+import net.sf.jasperreports.engine.base.JRBaseElementGroup;
+import net.sf.jasperreports.engine.design.events.JRChangeEventsSupport;
+import net.sf.jasperreports.engine.design.events.JRPropertyChangeSupport;
+
+public class JRDesignElementGroup extends JRBaseElementGroup implements JRChangeEventsSupport {
+  private static final long serialVersionUID = 10200L;
+  
+  public static final String PROPERTY_ELEMENT_GROUP = "elementGroup";
+  
+  public static final String PROPERTY_CHILDREN = "children";
+  
+  private transient JRPropertyChangeSupport eventSupport;
+  
+  public void setElementGroup(JRElementGroup elementGroup) {
+    Object old = this.elementGroup;
+    this.elementGroup = elementGroup;
+    getEventSupport().firePropertyChange("elementGroup", old, this.elementGroup);
+  }
+  
+  public void addElement(JRDesignElement element) {
+    element.setElementGroup((JRElementGroup)this);
+    this.children.add(element);
+    getEventSupport().fireCollectionElementAddedEvent("children", element, this.children.size() - 1);
+  }
+  
+  public JRDesignElement removeElement(JRDesignElement element) {
+    element.setElementGroup(null);
+    int idx = this.children.indexOf(element);
+    if (idx >= 0) {
+      this.children.remove(idx);
+      getEventSupport().fireCollectionElementRemovedEvent("children", element, idx);
+    } 
+    return element;
+  }
+  
+  public void addElementGroup(JRDesignElementGroup elemGrp) {
+    elemGrp.setElementGroup((JRElementGroup)this);
+    this.children.add(elemGrp);
+    getEventSupport().fireCollectionElementAddedEvent("children", elemGrp, this.children.size() - 1);
+  }
+  
+  public JRDesignElementGroup removeElementGroup(JRDesignElementGroup elemGrp) {
+    elemGrp.setElementGroup((JRElementGroup)null);
+    int idx = this.children.indexOf(elemGrp);
+    if (idx >= 0) {
+      this.children.remove(idx);
+      getEventSupport().fireCollectionElementRemovedEvent("children", elemGrp, idx);
+    } 
+    return elemGrp;
+  }
+  
+  public JRPropertyChangeSupport getEventSupport() {
+    synchronized (this) {
+      if (this.eventSupport == null)
+        this.eventSupport = new JRPropertyChangeSupport(this); 
+    } 
+    return this.eventSupport;
+  }
+}