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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.dialog.objentity;
 
 
 
 import  org.apache.cayenne.map.DbRelationship;
Multi-column browser for obj relationships
 
 public class ObjRelationshipPathBrowser extends MultiColumnBrowser {

    
Listener, which performs adding of new column
 
     protected MouseListener panelOpener;

    
Listener, which performs removing of columns to the right of selected row
 
     protected ListSelectionListener panelRemover;
 
     public ObjRelationshipPathBrowser() {
         this();
     }
 
     public ObjRelationshipPathBrowser(int minColumns) {
         super(minColumns);
     }
 
     @Override
     protected void installColumn(BrowserPanel panel) {
         if ( == null) {
              = new PanelOpener();
         }
 
         if ( == null) {
              = new PanelRemover();
         }
 
         panel.addMouseListener();
         panel.addListSelectionListener();
 
         panel.setCellRenderer();
     }

    
Selects one path component. Need to override this method, because list selection does not cause loading in this browser.
 
     @Override
     protected void selectRow(Object rowint indexTreePath path) {
         if (index > 0 && .get(index - 1).getSelectedValue() != row) {
             .get(index - 1).setSelectedValue(rowtrue);
         }
 
         if (index != path.getPathCount() - 1) {
             updateFromModel(rowindex - 1);
         }
     }
 
     @Override
     protected void uninstallColumn(BrowserPanel panel) {
         panel.removeMouseListener();
     }

    
Listener, which performs adding of new column at double-click
 
     protected class PanelOpener extends MouseAdapter {

        
Invoked when the mouse has been clicked on a component.
        public void mouseReleased(MouseEvent e) {
            if (SwingUtilities.isLeftMouseButton(e)) {
                process(e);
            }
        }
        private void process(MouseEvent e) {
            BrowserPanel panel = (BrowserPanele.getSource();
            Object selectedNode = panel.getSelectedValue();
            // ignore unselected
            if (selectedNode != null && selectedNode instanceof DbRelationship) {
                updateFromModel(selectedNode.indexOf(panel));
            }
        }
    }

    
Listener, which performs removing columns to the right of selected row
    protected class PanelRemover implements ListSelectionListener {
        public void valueChanged(ListSelectionEvent e) {
            // ignore "adjusting"
            if (!e.getValueIsAdjusting()) {
                BrowserPanel panel = (BrowserPanele.getSource();
                Object selectedNode = panel.getSelectedValue();
                if (selectedNode != null) {
                    updateFromModel(selectedNode.indexOf(panel), false);
                }
            }
        }
    }
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