/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* Copyright (c) 2001 - 2013 Object Refinery Ltd, Pentaho Corporation and Contributors..  All rights reserved.
*/

package org.pentaho.reporting.engine.classic.demo.ancient.demo.layouts;

import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.pentaho.reporting.engine.classic.core.MasterReport;
import org.pentaho.reporting.engine.classic.core.modules.gui.base.DefaultReportController;
import org.pentaho.reporting.engine.classic.core.modules.gui.base.PreviewPane;

/**
 * The DemoReportControler is a simple report controler implementation which allows to modify two report properties from
 * within the preview frame.
 *
 * @author Thomas Morgner
 */
public class DemoReportController extends DefaultReportController
{
  private static final Log logger = LogFactory.getLog(DemoReportController.class);
  public static final String MESSAGE_ONE_FIELDNAME = "Message1";
  public static final String MESSAGE_TWO_FIELDNAME = "Message2";

  private class UpdateAction extends AbstractAction
  {
    /**
     * Defines an <code>Action</code> object with a default description string and default icon.
     */
    protected UpdateAction()
    {
      putValue(Action.NAME, "Update");
    }

    /**
     * Invoked when an action occurs.
     */
    public void actionPerformed(final ActionEvent e)
    {
      final PreviewPane base = getPreviewPane();
      if (base == null)
      {
        return;
      }
      final MasterReport report = base.getReportJob();
      report.getParameterValues().put(MESSAGE_ONE_FIELDNAME, messageOneField.getText());
      report.getParameterValues().put(MESSAGE_TWO_FIELDNAME, messageTwoField.getText());
      try
      {
        base.setReportJob(report);
      }
      catch (Exception ex)
      {
        logger.error("Unable to refresh the report.", ex);
      }
    }
  }

  private JTextArea messageOneField;
  private JTextArea messageTwoField;
  private Action updateAction;
  private PreviewPane previewPane;

  public DemoReportController()
  {
    setLayout(new GridBagLayout());

    final JLabel messageOneLabel = new JLabel("One:");
    final JLabel messageTwoLabel = new JLabel("Two:");
    messageOneField = new JTextArea();
    messageOneField.setWrapStyleWord(true);
    messageOneField.setRows(10);
    messageTwoField = new JTextArea();
    messageTwoField.setRows(10);
    messageTwoField.setWrapStyleWord(true);
    updateAction = new UpdateAction();

    GridBagConstraints gbc = new GridBagConstraints();
    gbc.gridx = 0;
    gbc.gridy = 0;
    add(messageOneLabel, gbc);

    gbc = new GridBagConstraints();
    gbc.gridx = 0;
    gbc.gridy = 1;
    add(messageTwoLabel, gbc);

    gbc = new GridBagConstraints();
    gbc.gridx = 1;
    gbc.gridy = 0;
    gbc.weightx = 1;
    gbc.weighty = 1;
    gbc.fill = GridBagConstraints.BOTH;
    add(new JScrollPane(messageOneField), gbc);

    gbc = new GridBagConstraints();
    gbc.gridx = 1;
    gbc.gridy = 1;
    gbc.weightx = 1;
    gbc.weighty = 1;
    gbc.fill = GridBagConstraints.BOTH;
    add(new JScrollPane(messageTwoField), gbc);

    gbc = new GridBagConstraints();
    gbc.gridx = 1;
    gbc.gridy = 2;
    gbc.anchor = GridBagConstraints.EAST;
    add(new JButton(updateAction));

    setEnabled(false);
    messageOneField.setEnabled(false);
    messageTwoField.setEnabled(false);
    updateAction.setEnabled(false);
  }

  public PreviewPane getPreviewPane()
  {
    return previewPane;
  }

  /**
   * Sets whether or not this component is enabled. A component that is enabled may respond to user input, while a
   * component that is not enabled cannot respond to user input.  Some components may alter their visual representation
   * when they are disabled in order to provide feedback to the user that they cannot take input. <p>Note: Disabling a
   * component does not disable it's children.
   * <p/>
   * <p>Note: Disabling a lightweight component does not prevent it from receiving MouseEvents.
   *
   * @param enabled true if this component should be enabled, false otherwise
   * @see java.awt.Component#isEnabled
   * @see java.awt.Component#isLightweight
   */
  public void setEnabled(final boolean enabled)
  {
    super.setEnabled(enabled);
    messageOneField.setEnabled(enabled);
    messageTwoField.setEnabled(enabled);
    updateAction.setEnabled(enabled);
  }

  public void initialize(final PreviewPane pane)
  {
    super.initialize(pane);
    this.previewPane = pane;
    final MasterReport report = this.previewPane.getReportJob();
    messageOneField.setText((String) report.getParameterValues().get("Message1"));
    messageTwoField.setText((String) report.getParameterValues().get("Message2"));
  }

  /**
   * Called when the report controller gets removed.
   *
   * @param pane
   */
  public void deinitialize(final PreviewPane pane)
  {
    super.deinitialize(pane);
    this.previewPane = null;
  }
}