content: /*****************************************************************
   *   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
   *
   *    https://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 java.awt.event.MouseAdapter;
  import java.awt.event.MouseEvent;
  
  import javax.swing.JButton;
  import javax.swing.SwingUtilities;
  import javax.swing.tree.TreePath;
  
  import org.apache.cayenne.map.DbAttribute;
  import org.apache.cayenne.map.DbRelationship;
  
  public class ObjAttributePathBrowser extends ObjRelationshipPathBrowser {
  
      JButton selectPathButton;
      JButton doneButton;
  
      public ObjAttributePathBrowser(JButton selectPathButton, JButton doneButton) {
          super();
          this.selectPathButton = selectPathButton;
          this.doneButton = doneButton;
      }
  
      @Override
      protected void installColumn(BrowserPanel panel) {
          if (panelOpener == null) {
              panelOpener = new PanelAttributeOpener();
          }
  
          if (panelRemover == null) {
              panelRemover = new PanelRemover();
          }
  
          panel.addMouseListener(panelOpener);
          panel.addListSelectionListener(panelRemover);
          panel.setCellRenderer(renderer);
      }
  
      /**
       * Selects one path component. Need to override this method, because list selection
       * does not cause loading in this browser.
       */
      @Override
      protected void selectRow(Object row, int index, TreePath path) {
          if (index > 0 && columns.get(index - 1).getSelectedValue() != row) {
              columns.get(index - 1).setSelectedValue(row, true);
          }
  
          if (index != path.getPathCount() - 1) {
              updateFromModel(row, index - 1);
          }
      }
  
      /**
       * Listener, which performs adding of new column at double-click
       */
      protected class PanelAttributeOpener 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 = (BrowserPanel) e.getSource();
              Object selectedNode = panel.getSelectedValue();
  
              // ignore unselected
              if (selectedNode != null && selectedNode instanceof DbRelationship) {
                  updateFromModel(selectedNode, columns.indexOf(panel));
                  selectPathButton.setEnabled(false);
                  doneButton.setEnabled(false);
              }
              else if (selectedNode instanceof DbAttribute) {
                  doneButton.setEnabled(true);
                  selectPathButton.setEnabled(true);
              }
          }
      }
  }
  