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Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. /
 
 
 package org.apache.cayenne.modeler.editor.dbentity;
 
 
 
 import  org.apache.cayenne.map.Attribute;
 import  org.apache.cayenne.map.DbAttribute;
 import  org.apache.cayenne.map.DbEntity;
 import  org.apache.cayenne.map.DbRelationship;
 import  org.apache.cayenne.map.Entity;
 import  org.apache.cayenne.map.Relationship;
 
 public class DbEntityTabbedView extends JTabbedPane implements ChangeListener,
         DbAttributeDisplayListener {
 
     protected ProjectController mediator;
 
     protected Component entityPanel;
 
     public DbEntityTabbedView(ProjectController mediator) {
         super();
         this. = mediator;
         mediator.addDbEntityDisplayListener(this);
         mediator.addDbAttributeDisplayListener(this);
         mediator.addDbRelationshipDisplayListener(this);
 
         setTabPlacement(.);
 
         // add panels to tabs
         // note that those panels that have no internal scrollable tables
         // must be wrapped in a scroll pane
 
          = new JScrollPane(new DbEntityTab(mediator));
         addTab("Entity");
          = new DbEntityAttributeTab(mediator);
         addTab("Attributes");
          = new DbEntityRelationshipTab(mediator);
         addTab("Relationships");
 
         addChangeListener(this);
     }

    
Reset the remove buttons
 
     private void resetRemoveButtons(){
         Application app = Application.getInstance();
         app.getAction(RemoveAttributeAction.getActionName()).setEnabled(false);
         app.getAction(RemoveRelationshipAction.getActionName()).setEnabled(false);
     }
    
    
Handle focus when tab changes.
 
     public void stateChanged(ChangeEvent e) {
         resetRemoveButtons();
         
         // find source view
         Component selected = getSelectedComponent();
         while (selected instanceof JScrollPane) {
             selected = ((JScrollPaneselected).getViewport().getView();
         }
 
         ExistingSelectionProcessor proc = (ExistingSelectionProcessorselected;
         proc.processExistingSelection(e);
     }

    
If entity is null hides it's contents, otherwise makes it visible.
    public void currentDbEntityChanged(EntityDisplayEvent e) {
        Entity entity = e.getEntity();
        if (e.isMainTabFocus() && entity instanceof DbEntity) {
            if (getSelectedComponent() != ) {
                setSelectedComponent();
                .setVisible(true);
            }
        }
        
        resetRemoveButtons();
        setVisible(e.getEntity() != null);
    }
        if (e.getEntity() == null) {
            return;
        }
        
        // update relationship selection
        Relationship[] rels = e.getRelationships();
        DbRelationship[] dbRels = new DbRelationship[rels.length];
        
        System.arraycopy(rels, 0, dbRels, 0, rels.length);
        
        // reset tab to relationship
        if (getSelectedComponent() !=  && dbRels.length > 0) {
            .setVisible(true);
        }
        
    }
        if (e.getEntity() == null)
            return;
        // update relationship selection
        Attribute[] attrs = e.getAttributes();
        DbAttribute[] dbAttrs = new DbAttribute[attrs.length];
        
        System.arraycopy(attrs, 0, dbAttrs, 0, attrs.length);
        
        if (getSelectedComponent() !=  && dbAttrs.length > 0) {
            setSelectedComponent();
            .setVisible(true);
        }
            
        .selectAttributes(dbAttrs);
    }
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