pagesetupplugin.java

来自「swing编写的库存管理程序。毕业设计类」· Java 代码 · 共 269 行

/**
 * ========================================
 * 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.
 *
 * ------------------------------
 * PageSetupPlugin.java
 * ------------------------------
 * (C)opyright 2003, by Thomas Morgner and Contributors.
 *
 * Original Author:  Thomas Morgner;
 * Contributor(s):   David Gilbert (for Simba Management Limited);
 *
 * $Id: PageSetupPlugin.java,v 1.8.2.1 2003/12/21 23:28:44 taqua Exp $
 *
 * Changes
 * -------------------------
 * 13.06.2003 : Initial version
 *
 */

package org.jfree.report.modules.gui.print;

import java.awt.print.PageFormat;
import java.awt.print.PrinterJob;
import java.util.ResourceBundle;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeEvent;
import javax.swing.Icon;
import javax.swing.KeyStroke;

import org.jfree.report.JFreeReport;
import org.jfree.report.ReportProcessingException;
import org.jfree.report.modules.gui.base.AbstractExportPlugin;
import org.jfree.report.modules.gui.base.ReportPane;
import org.jfree.report.modules.gui.base.PreviewProxy;
import org.jfree.report.modules.gui.base.PreviewProxyBase;
import org.jfree.report.modules.gui.print.resources.PrintExportResources;
import org.jfree.report.util.PageFormatFactory;
import org.jfree.report.util.ReportConfiguration;
import org.jfree.report.util.Log;

/**
 * An export control plugin that handles the setup of page format objects for
 * the report.
 *
 * @author Thomas Morgner
 */
public class PageSetupPlugin extends AbstractExportPlugin
{
  private class RepaginationListener implements PropertyChangeListener
  {
    /**
     * This method gets called when a bound property is changed.
     * @param evt A PropertyChangeEvent object describing the event source
     *   	and the property that has changed.
     */
    public void propertyChange(PropertyChangeEvent evt)
    {
      if (ReportPane.PRINTING_PROPERTY.equals(evt.getPropertyName()) ||
          ReportPane.PAGINATING_PROPERTY.equals(evt.getPropertyName()))
      {
        setEnabled((reportPane.isPrinting() || reportPane.isPaginating()) == false);
      }
      else if (PreviewProxyBase.REPORT_PANE_PROPERTY.equals(evt.getPropertyName()))
      {
        updateReportPane();
      }
    }
  }

  /** Localised resources. */
  private ResourceBundle resources;

  /** The base resource class. */
  public static final String BASE_RESOURCE_CLASS =
      PrintExportResources.class.getName();

  private ReportPane reportPane;
  private RepaginationListener repaginationListener;

  /**
   * Default Constructor.
   */
  public PageSetupPlugin()
  {
    resources = ResourceBundle.getBundle(BASE_RESOURCE_CLASS);
    repaginationListener = new RepaginationListener();
  }

  /**
   * Initializes the plugin to work with the given PreviewProxy.
   *
   * @param proxy the preview proxy that created this plugin.
   * @throws NullPointerException if the proxy or the proxy's basecomponent
   * is null.
   */
  public void init(PreviewProxy proxy)
  {
    super.init(proxy);
    reportPane = proxy.getBase().getReportPane();
    reportPane.addPropertyChangeListener(repaginationListener);
  }

  /**
   * Returns true, when this export plugin is used to configure the report or an other
   * plugin.
   *
   * @return true if this is a control plugin, false otherwise.
   */
  public boolean isControlPlugin()
  {
    return true;
  }

  /**
   * Exports a report.
   *
   * @param report  the report.
   *
   * @return A boolean.
   */
  public boolean performExport(final JFreeReport report)
  {
    final PrinterJob pj = PrinterJob.getPrinterJob();
    final PageFormat pf = pj.pageDialog(report.getDefaultPageFormat());
    if (PageFormatFactory.isEqual(pf, report.getDefaultPageFormat()))
    {
      return false;
    }
    else
    {
      try
      {
        getBase().updatePageFormat(pf);
      }
      catch (ReportProcessingException rpe)
      {
        Log.warn ("Invalid pageformat update");
        return false;
      }
      return true;
    }
  }

  /**
   * Returns the display name for the export action.
   *
   * @return The display name.
   */
  public String getDisplayName()
  {
    return (resources.getString("action.page-setup.name"));
  }

  /**
   * Returns the short description for the export action.
   *
   * @return The short description.
   */
  public String getShortDescription()
  {
    return (resources.getString("action.page-setup.description"));
  }

  /**
   * Returns the small icon for the export action.
   *
   * @return The icon.
   */
  public Icon getSmallIcon()
  {
    return (Icon) resources.getObject("action.page-setup.small-icon");
  }

  /**
   * Returns the large icon for the export action.
   *
   * @return The icon.
   */
  public Icon getLargeIcon()
  {
    return (Icon) resources.getObject("action.page-setup.icon");
  }

  /**
   * Returns the accelerator key for the export action.
   *
   * @return The accelerator key.
   */
  public KeyStroke getAcceleratorKey()
  {
    return null;
  }

  /**
   * Returns the mnemonic key code.
   *
   * @return The code.
   */
  public Integer getMnemonicKey()
  {
    return (Integer) resources.getObject("action.page-setup.mnemonic");
  }


  /**
   * Returns the resourcebundle to be used to translate strings into
   * localized content.
   *
   * @return the resourcebundle for the localisation.
   */
  protected ResourceBundle getResources()
  {
    return resources;
  }


  /**
   * Returns true if the action should be added to the toolbar, and false otherwise.
   *
   * @return true, if the plugin should be added to the toolbar, false otherwise.
   */
  public boolean isAddToToolbar()
  {
    return ReportConfiguration.getGlobalConfig().getConfigProperty
        ("org.jfree.report.modules.gui.print.pagesetup.AddToToolbar", "false").equals("true");
  }

  /**
   * Returns true if the action is separated, and false otherwise. A separated
   * action starts a new action group and will be spearated from previous actions
   * on the menu and toolbar.
   *
   * @return true, if the action should be separated from previous actions,
   * false otherwise.
   */
  public boolean isSeparated()
  {
    return ReportConfiguration.getGlobalConfig().getConfigProperty
        ("org.jfree.report.modules.gui.print.pagesetup.Separated", "false").equals("true");
  }

  protected void updateReportPane ()
  {
    reportPane.removePropertyChangeListener(repaginationListener);
    reportPane = getBase().getReportPane();
    reportPane.addPropertyChangeListener(repaginationListener);
    setEnabled((reportPane.isPrinting() || reportPane.isPaginating()) == false);
  }
}