www.pudn.com > jfreereport-0.8.3f.zip > OpenSourceDemo.java

/** 
 * ======================================== 
 * JFreeReport : a free Java report library 
 * ======================================== 
 * 
 * Project Info:  http://www.jfree.org/jfreereport/index.html 
 * Project Lead:  Thomas Morgner; 
 * 
 * (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. 
 * 
 * ------------------- 
 * OpenSourceDemo.java 
 * ------------------- 
 * (C)opyright 2002, 2003, by Simba Management Limited. 
 * 
 * Original Author:  David Gilbert (for Simba Management Limited); 
 * Contributor(s):   -; 
 * 
 * $Id: OpenSourceDemo.java,v 1.18.2.1 2003/08/24 14:18:07 taqua Exp $ 
 * 
 * Changes 
 * ------- 
 * 29-Nov-2002 : Version 1 (DG); 
 * 
 */ 
 
package com.jrefinery.report.demo; 
 
import java.awt.BorderLayout; 
import java.awt.Image; 
import java.awt.Toolkit; 
import java.net.URL; 
import java.text.MessageFormat; 
import javax.swing.BorderFactory; 
import javax.swing.JButton; 
import javax.swing.JMenu; 
import javax.swing.JMenuBar; 
import javax.swing.JMenuItem; 
import javax.swing.JOptionPane; 
import javax.swing.JPanel; 
import javax.swing.JScrollPane; 
import javax.swing.JTable; 
import javax.swing.JTextArea; 
import javax.swing.table.TableModel; 
 
import com.jrefinery.report.JFreeReport; 
import com.jrefinery.report.ReportProcessingException; 
import com.jrefinery.report.demo.helper.AbstractDemoFrame; 
import com.jrefinery.report.io.ReportGenerator; 
import com.jrefinery.report.preview.PreviewFrame; 
import com.jrefinery.report.util.ActionButton; 
import com.jrefinery.report.util.ActionMenuItem; 
import com.jrefinery.report.util.Log; 
import com.jrefinery.report.util.WaitingImageObserver; 
import org.jfree.ui.RefineryUtilities; 
 
/** 
 * A simple JFreeReport demonstration.  The generated report lists some free and open source 
 * software projects for the Java programming language. 
 * 
 * @author David Gilbert 
 */ 
public class OpenSourceDemo extends AbstractDemoFrame 
{ 
 
  /** The data for the report. */ 
  private TableModel data; 
 
  /** 
   * Constructs the demo application. 
   * 
   * @param title  the frame title. 
   */ 
  public OpenSourceDemo(final String title) 
  { 
    setTitle(title); 
    this.data = new OpenSourceProjects(); 
    setJMenuBar(createMenuBar()); 
    setContentPane(createContent()); 
  } 
 
  /** 
   * Creates a menu bar. 
   * 
   * @return the menu bar. 
   */ 
  public JMenuBar createMenuBar() 
  { 
    final JMenuBar mb = new JMenuBar(); 
    final JMenu fileMenu = createJMenuItem("menu.file"); 
 
    final JMenuItem previewItem = new ActionMenuItem(getPreviewAction()); 
    final JMenuItem exitItem = new ActionMenuItem(getCloseAction()); 
 
    fileMenu.add(previewItem); 
    fileMenu.addSeparator(); 
    fileMenu.add(exitItem); 
    mb.add(fileMenu); 
    return mb; 
  } 
 
  /** 
   * Creates the content for the application frame. 
   * 
   * @return a panel containing the basic user interface. 
   */ 
  public JPanel createContent() 
  { 
    final JPanel content = new JPanel(new BorderLayout()); 
    content.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4)); 
 
    final String d = "This demo creates a report listing some useful open source projects for Java."; 
    final JTextArea textArea = new JTextArea(d); 
    textArea.setLineWrap(true); 
    textArea.setWrapStyleWord(true); 
    textArea.setEditable(false); 
    final JScrollPane scroll = new JScrollPane(textArea); 
    scroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER); 
    final JTable table = new JTable(this.data); 
    final JScrollPane scrollPane = new JScrollPane(table); 
 
    final JButton previewButton = new ActionButton(getPreviewAction()); 
 
    content.add(scroll, BorderLayout.NORTH); 
    content.add(scrollPane); 
    content.add(previewButton, BorderLayout.SOUTH); 
    return content; 
 
  } 
 
  /** 
   * Displays a print preview screen for the sample report. 
   */ 
  protected void attemptPreview() 
  { 
    final URL in = getClass().getResource("/com/jrefinery/report/demo/OpenSourceDemo.xml"); 
 
    if (in == null) 
    { 
      JOptionPane.showMessageDialog(this, 
          MessageFormat.format(getResources().getString("report.definitionnotfound"), 
              new Object[]{in}), 
          getResources().getString("error"), JOptionPane.ERROR_MESSAGE); 
    } 
 
    final JFreeReport report; 
    try 
    { 
      report = parseReport(in); 
      report.setData(this.data); 
 
      //ReportConfiguration config = report.getReportConfiguration(); 
      //config.setEnableExportExcel(false); 
      //config.setEnableExportCSV(false); 
      //config.setEnableExportHTML(false); 
 
      // add an image as a report property... 
      final URL imageURL = getClass().getResource("/com/jrefinery/report/demo/gorilla.jpg"); 
      final Image image = Toolkit.getDefaultToolkit().createImage(imageURL); 
      final WaitingImageObserver obs = new WaitingImageObserver(image); 
      obs.waitImageLoaded(); 
      report.setProperty("logo", image); 
      report.setPropertyMarked("logo", true); 
 
    } 
    catch (Exception ex) 
    { 
      showExceptionDialog("report.definitionfailure", ex); 
      return; 
    } 
 
    try 
    { 
      final PreviewFrame frame = new PreviewFrame(report); 
      frame.getBase().setToolbarFloatable(true); 
      frame.pack(); 
      RefineryUtilities.positionFrameRandomly(frame); 
      frame.setVisible(true); 
      frame.requestFocus(); 
    } 
    catch (ReportProcessingException rpe) 
    { 
      showExceptionDialog("report.previewfailure", rpe); 
    } 
  } 
 
  /** 
   * Reads the report from the specified template file. 
   * 
   * @param templateURL  the template location. 
   * 
   * @return a report. 
   */ 
  private JFreeReport parseReport(final URL templateURL) 
  { 
 
    JFreeReport result = null; 
    final ReportGenerator generator = ReportGenerator.getInstance(); 
    try 
    { 
      result = generator.parseReport(templateURL); 
    } 
    catch (Exception e) 
    { 
      Log.error("Failed to parse the report definition", e); 
    } 
    return result; 
 
  } 
 
  /** 
   * Entry point for running the demo application... 
   * 
   * @param args  ignored. 
   */ 
  public static void main(final String[] args) 
  { 
    final OpenSourceDemo frame = new OpenSourceDemo("Open Source Demo"); 
    frame.pack(); 
    RefineryUtilities.centerFrameOnScreen(frame); 
    frame.setVisible(true); 
  } 
 
}