printingplugin.java

Java的Web报表库

/**
 * ========================================
 * 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.
 *
 * ------------------------------
 * PrintingPlugin.java
 * ------------------------------
 * (C)opyright 2003, by Thomas Morgner and Contributors.
 *
 * Original Author:  Thomas Morgner;
 * Contributor(s):   David Gilbert (for Simba Management Limited);
 *
 * $Id: PrintingPlugin.java,v 1.5.2.4 2003/08/24 15:10:36 taqua Exp $
 *
 * Changes
 * -------------------------
 * 13.06.2003 : Initial version
 *
 */

package com.jrefinery.report.preview;

import java.awt.print.PrinterJob;
import java.util.ResourceBundle;
import javax.swing.Icon;
import javax.swing.KeyStroke;

import com.jrefinery.report.JFreeReport;
import org.jfree.ui.RefineryUtilities;

/**
 * An export plugin for the <code>java.awt.print</code> API.
 * <p>
 * @author Thomas Morgner
 */
public class PrintingPlugin extends AbstractExportPlugin
{
  private static class PrintExportTask extends ExportTask
  {
    private PrinterJob printerJob;
    private ReportProgressDialog progressDialog;

    public PrintExportTask(PrinterJob printJob, ReportProgressDialog progressDialog)
    {
      this.printerJob = printJob;
      this.progressDialog = progressDialog;
      setTaskDone(false);
    }

    /**
     * Executes the printing in a spearate thread ...
     */
    public void run()
    {
      try
      {
        printerJob.print();
        setReturnValue(RETURN_SUCCESS);
      }
      catch (Exception e)
      {
        setReturnValue(RETURN_FAILED);
        setException(e);
      }
      setTaskDone(true);
      progressDialog.setVisible(false);
    }
  }

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

  /** The base resource class. */
  public static final String BASE_RESOURCE_CLASS =
      "com.jrefinery.report.resources.JFreeReportResources";

  private ReportProgressDialog progressDialog;

  /**
   * DefaultConstructor.
   */
  public PrintingPlugin()
  {
    resources = ResourceBundle.getBundle(BASE_RESOURCE_CLASS);
    progressDialog = new ReportProgressDialog();
    progressDialog.setDefaultCloseOperation(ReportProgressDialog.DO_NOTHING_ON_CLOSE);
    progressDialog.setTitle(resources.getString("printing-export.progressdialog.title"));
    progressDialog.setMessage(resources.getString("printing-export.progressdialog.message"));
    progressDialog.pack();
    RefineryUtilities.positionFrameRandomly(progressDialog);
  }

  /**
   * Exports a report.
   *
   * @param report  the report.
   *
   * @return A boolean.
   */
  public boolean performExport(final JFreeReport report)
  {
      final PrinterJob pj = PrinterJob.getPrinterJob();
      pj.setPageable(getBase().getPageable());

      if (pj.printDialog())
      {
        // need to connect to the report pane to receive state updates ...
        getBase().addRepaginationListener(progressDialog);
        PrintExportTask task = new PrintExportTask(pj, progressDialog);
        delegateTask(task);
        synchronized (task)
        {
          if (task.isTaskDone() == false)
          {
            progressDialog.setVisible(true);
          }
        }
        getBase().removeRepaginationListener(progressDialog);
        if (task.getReturnValue() != PrintExportTask.RETURN_SUCCESS)
        {
          handleExportResult(false);
        }
      }
      return true;
  }


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

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

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

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

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

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

  /**
   * Returns true if the action should be added to the toolbar, and false otherwise.
   *
   * @return A boolean.
   */
  public boolean isAddToToolbar()
  {
    return true;
  }
}