FieldTransformerAssociationEditingPanel.java

/*******************************************************************************
 * 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.mapping;

import java.awt.GridBagConstraints;
import java.awt.Insets;
import javax.swing.BorderFactory;
import javax.swing.JPanel;

import org.eclipse.persistence.tools.workbench.framework.context.DefaultWorkbenchContextHolder;
import org.eclipse.persistence.tools.workbench.framework.context.WorkbenchContext;
import org.eclipse.persistence.tools.workbench.framework.ui.view.AbstractPanel;
import org.eclipse.persistence.tools.workbench.mappingsplugin.ui.mapping.TransformerEditingPanel.TransformerSpec;


public abstract class FieldTransformerAssociationEditingPanel
    extends AbstractPanel
{
    // **************** Variables *********************************************

    /** Used to govern how the field transformer association is created */
    protected FieldTransformerAssociationSpec associationSpec;


    // **************** Constructors ******************************************

    public FieldTransformerAssociationEditingPanel(FieldTransformerAssociationSpec associationSpec, WorkbenchContext context) {
        super(new DefaultWorkbenchContextHolder(context));
        this.associationSpec = associationSpec;
        this.initializeLayout();
    }


    // **************** Initialization ****************************************

    private void initializeLayout() {
        GridBagConstraints constraints = new GridBagConstraints();

        // field chooser panel
        JPanel fieldChooserPanel = this.buildFieldChooserPanel();
        constraints.gridx        = 0;
        constraints.gridy        = 0;
        constraints.gridwidth    = 1;
        constraints.gridheight    = 1;
        constraints.weightx        = 0;
        constraints.weighty        = 0;
        constraints.fill        = GridBagConstraints.HORIZONTAL;
        constraints.anchor        = GridBagConstraints.LINE_START;
        constraints.insets        = new Insets(0, 5, 0, 5);
        this.add(fieldChooserPanel, constraints);

        // transformer panel
        TransformerEditingPanel transformerPanel = this.buildTransformerPanel();
        constraints.gridx        = 0;
        constraints.gridy        = 1;
        constraints.gridwidth    = 1;
        constraints.gridheight    = 1;
        constraints.weightx        = 1;
        constraints.weighty        = 1;
        constraints.fill        = GridBagConstraints.HORIZONTAL;
        constraints.anchor        = GridBagConstraints.PAGE_START;
        constraints.insets        = new Insets(5, 5, 5, 5);
        this.add(transformerPanel, constraints);
        addPaneForAlignment(transformerPanel);
    }

    protected abstract JPanel buildFieldChooserPanel();

    private TransformerEditingPanel buildTransformerPanel() {
        TransformerEditingPanel transformerPanel
            = new TransformerEditingPanel(this.associationSpec.transformerSpec(), this.getWorkbenchContextHolder());
        transformerPanel.setBorder(
            BorderFactory.createCompoundBorder(
                buildTitledBorder("FIELD_TRANSFORMER_ASSOCIATION_PANEL_TRANSFORMER_PANEL"),
                BorderFactory.createEmptyBorder(0, 5, 5, 5)
            )
        );
        return transformerPanel;
    }

    // **************** Member classes ****************************************

    public static interface FieldTransformerAssociationSpec
    {
        /** Return a spec for the transformer part of the association */
        TransformerSpec transformerSpec();
    }
}