/*******************************************************************************
* Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.tools.workbench.mappingsplugin.ui.query.relational;
import java.awt.Component;
import java.awt.Dialog;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.MouseEvent;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreePath;
import org.eclipse.persistence.tools.workbench.framework.context.WorkbenchContext;
import org.eclipse.persistence.tools.workbench.framework.ui.dialog.AbstractDialog;
import org.eclipse.persistence.tools.workbench.framework.uitools.DoubleClickMouseListener;
import org.eclipse.persistence.tools.workbench.framework.uitools.SwingComponentFactory;
import org.eclipse.persistence.tools.workbench.mappingsmodel.descriptor.MWMappingDescriptor;
import org.eclipse.persistence.tools.workbench.mappingsmodel.query.MWQueryable;
import org.eclipse.persistence.tools.workbench.mappingsmodel.query.relational.MWQueryableArgument;
import org.eclipse.persistence.tools.workbench.utility.filters.Filter;
/**
* Used for choosing an MWQueryable when creating an MWExpression
*/
final class QueryableEditDialog
extends AbstractDialog
{
private QueryableTree queryKeyTree;
private MWQueryableArgument argument;
QueryableEditDialog(MWQueryableArgument argument, WorkbenchContext context) {
super(context, (Dialog) context.getCurrentWindow());
this.argument = argument;
}
protected String helpTopicId() {
return "dialogEditQueryable";
}
/**
* Invoked each time a node is selected or unselected.
*/
private TreeSelectionListener buildTreeSelectionHandler() {
return new TreeSelectionListener() {
public void valueChanged(TreeSelectionEvent e) {
updateOKButton();
}
};
}
private MWMappingDescriptor getDescriptor() {
return argument.getParentQuery().getOwningDescriptor();
}
protected Component buildMainPanel() {
getOKAction().setEnabled(false);
JPanel panel = new JPanel(new GridBagLayout());
GridBagConstraints constraints = new GridBagConstraints();
this.setTitle(resourceRepository().getString("CHOOSE_QUERY_KEY_DIALOG_TITLE.title"));
queryKeyTree = new QueryableTree(new QueryableTreeModel(new DefaultMutableTreeNode(getDescriptor()), buildQueryableFilter()), getWorkbenchContext());
JScrollPane scrollPane = new JScrollPane(queryKeyTree);
scrollPane.setPreferredSize(new Dimension(250,200));
queryKeyTree.addTreeSelectionListener(buildTreeSelectionHandler());
queryKeyTree.setSelectedQueryableArgumentElement(argument.getQueryableArgumentElement());
SwingComponentFactory.addDoubleClickMouseListener(queryKeyTree, new DoubleClickMouseListener() {
public void mouseDoubleClicked(MouseEvent e) {
TreePath path = queryKeyTree.getPathForLocation(e.getX(), e.getY());
if (path != null) {
clickOK();
}
}
});
constraints.gridx = 0;
constraints.gridy = 0;
constraints.gridwidth = 1;
constraints.gridheight = 1;
constraints.weightx = 1;
constraints.weighty = 1;
constraints.fill = GridBagConstraints.BOTH;
constraints.anchor = GridBagConstraints.CENTER;
constraints.insets = new Insets(5, 5, 5, 5);
panel.add(scrollPane, constraints);
return panel;
}
private Filter buildQueryableFilter() {
return new Filter() {
public boolean accept(Object o) {
return ((MWQueryable) o).isTraversableForQueryExpression();
}
};
}
protected boolean preConfirm() {
TreePath selectionPath = this.queryKeyTree.getSelectionPath();
List queryablePath = new ArrayList();
List allowsNull = new ArrayList();
QueryableTreeNode selectedNode = (QueryableTreeNode) selectionPath.getLastPathComponent();
allowsNull.add(Boolean.valueOf(selectedNode.isAllowsNull()));
MWQueryable queryableObject = selectedNode.getQueryable();
queryablePath.add(queryableObject);
selectionPath = selectionPath.getParentPath();
while (selectionPath.getPathCount() > 1) //first path component is always a descriptor, we want to quit before reaching it
{
selectedNode = (QueryableTreeNode) selectionPath.getLastPathComponent();
allowsNull.add(new Boolean(selectedNode.isAllowsNull()));
MWQueryable joinedQueryable = selectedNode.getQueryable();
queryablePath.add(joinedQueryable);
selectionPath = selectionPath.getParentPath();
}
this.argument.setQueryableArgument(queryablePath.iterator(), allowsNull.iterator());
((DefaultMutableTreeNode) queryKeyTree.getModel().getRoot()).removeAllChildren();
return super.preConfirm();
}
protected void cancelPressed() {
((DefaultMutableTreeNode) queryKeyTree.getModel().getRoot()).removeAllChildren();
super.cancelPressed();
}
private void updateOKButton() {
getOKAction().setEnabled(queryKeyTree.getSelectionCount() > 0);
}
}