staticcontentelementrenderermodule.java

报表设计软件,很好的

/**
 * ========================================
 * JFreeReport : a free Java report library
 * ========================================
 *
 * Project Info:  http://www.jfree.org/jfreereport/index.html
 * Project Lead:  Thomas Morgner ([e-mail]);
 *
 * (C) Copyright 2000-2003, by Simba Management Limited and Contributors.
 *
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation;
 * either version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * ------------------------------
 * StaticContentElementRendererModule.java
 * ------------------------------
 * (C)opyright 2003, by Thomas Morgner and Contributors.
 *
 * Original Author:  Thomas Morgner;
 * Contributor(s):   David Gilbert (for Simba Management Limited);
 *
 * $Id: StaticContentElementRendererModule.java,v 1.2 2004/04/20 18:54:58 taqua Exp $
 *
 * Changes
 * -------------------------
 * 28.09.2003 : Initial version
 *
 */

package org.jfree.designer.visualeditor.bandeditor;

import java.awt.Color;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.border.EtchedBorder;
import javax.swing.border.LineBorder;

import org.jfree.report.Element;

public final class StaticContentElementRendererModule
        extends AbstractElementRendererModule
{
  private final JLabel rendererComponent;

  public StaticContentElementRendererModule (final String contentType)
  {
    super(contentType);
    rendererComponent = new JLabel();
    rendererComponent.setOpaque(true);
  }

  public final boolean canHandle (final Element element)
  {
    if (super.canHandle(element) == false)
    {
      return false;
    }
    if (isDataRowContent(element) == true)
    {
      return false;
    }
    // very simple test here for now
    // if it is no data row element, it must be a static datasource
    // does not take care of alternative implementations yet.
    return true;
  }

  public final JComponent getElementRenderer
          (final Element element, final boolean isSelected, final boolean hasFocus,
           final float detail)
  {
    if (isSelected)
    {
      rendererComponent.setBackground(Color.green);
    }
    else
    {
      rendererComponent.setBackground(Color.magenta);
    }
    if (hasFocus)
    {
      rendererComponent.setBorder(new EtchedBorder());
    }
    else
    {
      rendererComponent.setBorder(new LineBorder(Color.darkGray));
    }
    rendererComponent.setFont(element.getStyle().getFontDefinitionProperty().getFont());
    rendererComponent.setText(element.getName());
    return rendererComponent;
  }
}