excelexportdialog.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.
 *
 * ----------------------
 * ExcelExportDialog.java
 * ----------------------
 * (C)opyright 2003, by Heiko Evermann and Contributors.
 *
 * Original Author:  Heiko Evermann (for Hawesko GmbH & Co KG, based on PDFSaveDialog);
 * Contributor(s):   Thomas Morgner;
 *                   David Gilbert (for Simba Management Limited);
 *
 * $Id: ExcelExportDialog.java,v 1.17.2.2 2003/08/24 14:18:11 taqua Exp $
 *
 * Changes
 * --------
 * 02-Jan-2003 : Initial version
 * 25-Feb-2003 : Added missing Javadocs (DG);
 *
 */

package com.jrefinery.report.preview;

import java.awt.Dialog;
import java.awt.Frame;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.text.MessageFormat;
import java.util.ResourceBundle;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.KeyStroke;

import com.jrefinery.report.JFreeReport;
import com.jrefinery.report.targets.table.excel.ExcelProcessor;
import com.jrefinery.report.util.ActionButton;
import com.jrefinery.report.util.ExceptionDialog;
import com.jrefinery.report.util.FilesystemFilter;
import com.jrefinery.report.util.ReportConfiguration;
import com.jrefinery.report.util.StringUtil;

/**
 * A dialog that is used to perform the printing of a report into an Excel file.
 * <p>
 * The main method to call the dialog is {@link ExcelExportDialog#performExport}. Given a report
 * and a pageformat, the dialog is shown and if the user approved the dialog, the excel file
 * is saved using the settings made in the dialog.
 *
 * @author Heiko Evermann
 */
public class ExcelExportDialog extends JDialog
{
  /**
   * Internal action class to confirm the dialog and to validate the input.
   */
  private class ActionConfirm extends AbstractAction
  {
    /**
     * Default constructor.
     */
    public ActionConfirm()
    {
      putValue(Action.NAME, getResources().getString("excelexportdialog.confirm"));
    }

    /**
     * Receives notification that the action has occurred.
     *
     * @param e  the action event.
     */
    public void actionPerformed(final ActionEvent e)
    {
      if (performValidate())
      {
        setConfirmed(true);
        setVisible(false);
      }
    }
  }

  /**
   * Internal action class to cancel the report processing.
   */
  private class ActionCancel extends AbstractAction
  {
    /**
     * Default constructor.
     */
    public ActionCancel()
    {
      putValue(Action.NAME, getResources().getString("excelexportdialog.cancel"));
    }

    /**
     * Receives notification that the action has occurred.
     *
     * @param e  the action event.
     */
    public void actionPerformed(final ActionEvent e)
    {
      setConfirmed(false);
      setVisible(false);
    }
  }

  /**
   * Internal action class to select a target file.
   */
  private class ActionSelectFile extends AbstractAction
  {
    /**
     * Default constructor.
     */
    public ActionSelectFile()
    {
      putValue(Action.NAME, getResources().getString("excelexportdialog.selectFile"));
    }

    /**
     * Receives notification that the action has occurred.
     *
     * @param e  the action event.
     */
    public void actionPerformed(final ActionEvent e)
    {
      performSelectFile();
    }
  }

  /** Confirm action. */
  private Action actionConfirm;

  /** Cancel action. */
  private Action actionCancel;

  /** Select file action. */
  private Action actionSelectFile;

  /** Filename text field. */
  private JTextField txFilename;

  /** The strict layout check-box. */
  private JCheckBox cbStrictLayout;

  /** Confirmed flag. */
  private boolean confirmed;

  /** Confirm button. */
  private JButton btnConfirm;

  /** Cancel button. */
  private JButton btnCancel;

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

  /** A file chooser. */
  private JFileChooser fileChooser;

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

  /**
   * Creates a new Excel save dialog.
   *
   * @param owner  the dialog owner.
   */
  public ExcelExportDialog(final Frame owner)
  {
    super(owner);
    initConstructor();
  }

  /**
   * Creates a new Excel dialog.
   *
   * @param owner  the dialog owner.
   */
  public ExcelExportDialog(final Dialog owner)
  {
    super(owner);
    initConstructor();
  }

  /**
   * Creates a new Excel save dialog.  The created dialog is modal.
   */
  public ExcelExportDialog()
  {
    initConstructor();
  }

  /**
   * Initialisation.
   */
  private void initConstructor()
  {
    setModal(true);
    setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
    resources = ResourceBundle.getBundle(BASE_RESOURCE_CLASS);
    setTitle(resources.getString("excelexportdialog.dialogtitle"));
    initialize();
    clear();

    addWindowListener(new WindowAdapter()
    {
      public void windowClosing(final WindowEvent e)
      {
        getActionCancel().actionPerformed(null);
      }
    }
    );
  }

  /**
   * Returns the resource bundle used for that dialog.
   *
   * @return the resource bundle
   */
  protected ResourceBundle getResources()
  {
    return resources;
  }

  /**
   * Returns a single instance of the file selection action.
   *
   * @return the action.
   */
  private Action getActionSelectFile()
  {
    if (actionSelectFile == null)
    {
      actionSelectFile = new ActionSelectFile();
    }
    return actionSelectFile;
  }

  /**
   * Returns a single instance of the dialog confirm action.
   *
   * @return the action.
   */
  private Action getActionConfirm()
  {
    if (actionConfirm == null)
    {
      actionConfirm = new ActionConfirm();
    }
    return actionConfirm;
  }

  /**
   * Returns a single instance of the dialog cancel action.
   *
   * @return the action.
   */
  protected Action getActionCancel()
  {
    if (actionCancel == null)
    {
      actionCancel = new ActionCancel();
    }
    return actionCancel;
  }

  /**
   * Initializes the Swing components of this dialog.
   */
  private void initialize()
  {
    final JPanel contentPane = new JPanel();
    contentPane.setLayout(new GridBagLayout());
    contentPane.setBorder(BorderFactory.createEmptyBorder(3, 3, 3, 3));

    final JLabel lblFileName = new JLabel(getResources().getString("excelexportdialog.filename"));
    final JButton btnSelect = new ActionButton(getActionSelectFile());

    txFilename = new JTextField();
    cbStrictLayout = new JCheckBox(getResources().getString("excelexportdialog.strict-layout"));

    GridBagConstraints gbc = new GridBagConstraints();
    gbc.gridx = 0;
    gbc.gridy = 0;
    gbc.anchor = GridBagConstraints.WEST;
    gbc.insets = new Insets(3, 1, 1, 1);
    contentPane.add(lblFileName, gbc);

    gbc = new GridBagConstraints();
    gbc.fill = GridBagConstraints.HORIZONTAL;
    gbc.weightx = 1;
    gbc.gridx = 1;
    gbc.gridy = 0;
    gbc.ipadx = 120;
    gbc.insets = new Insets(3, 1, 1, 1);
    contentPane.add(txFilename, gbc);