previewproxybase.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.
 *
 * ---------------------
 * PreviewProxyBase.java
 * ---------------------
 * (C)opyright 2003, by Simba Management Limited and Contributors.
 *
 * Original Author:  Thomas Morgner;
 * Contributor(s):   David Gilbert (for Simba Management Limited);
 *
 * $Id: PreviewProxyBase.java,v 1.26.2.5 2003/08/24 15:10:36 taqua Exp $
 *
 * Changes
 * -------
 * 25-Feb-2003 : Added standard header and Javadocs (DG);
 *
 */

package com.jrefinery.report.preview;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Insets;
import java.awt.Toolkit;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.awt.print.PageFormat;
import java.awt.print.Pageable;
import java.awt.print.Printable;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.ResourceBundle;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.DefaultComboBoxModel;
import javax.swing.Icon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JLabel;
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.JSeparator;
import javax.swing.JToolBar;
import javax.swing.KeyStroke;
import javax.swing.RepaintManager;
import javax.swing.UIManager;

import com.jrefinery.report.JFreeReport;
import com.jrefinery.report.ReportProcessingException;
import com.jrefinery.report.action.AboutAction;
import com.jrefinery.report.action.FirstPageAction;
import com.jrefinery.report.action.GotoPageAction;
import com.jrefinery.report.action.LastPageAction;
import com.jrefinery.report.action.NextPageAction;
import com.jrefinery.report.action.PreviousPageAction;
import com.jrefinery.report.action.ZoomInAction;
import com.jrefinery.report.action.ZoomOutAction;
import com.jrefinery.report.targets.base.bandlayout.LayoutManagerCache;
import com.jrefinery.report.targets.base.event.RepaginationListener;
import com.jrefinery.report.util.AbstractActionDowngrade;
import com.jrefinery.report.util.ActionButton;
import com.jrefinery.report.util.ActionDowngrade;
import com.jrefinery.report.util.ActionMenuItem;
import com.jrefinery.report.util.ExceptionDialog;
import com.jrefinery.report.util.FloatingButtonEnabler;
import com.jrefinery.report.util.Log;
import com.jrefinery.report.util.ReportConfiguration;
import com.jrefinery.report.util.WindowSizeLimiter;
import com.jrefinery.report.util.Worker;
import com.jrefinery.report.util.ActionConcentrator;
import org.jfree.layout.CenterLayout;
import org.jfree.xml.ParserUtil;
import org.jfree.ui.RefineryUtilities;
import org.xml.sax.SAXException;

/**
 * A preview proxy.
 *
 * @author Thomas Morgner.
 */
public class PreviewProxyBase extends JComponent
{
  /** The worker thread which is used to perform the repagination. */
  private Worker paginationWorker;

  /** The worker thread which is used to perform the repagination. */
  private Worker exportWorker;

  /** The default width of the report pane. */
  public static final int DEFAULT_REPORT_PANE_WIDTH = 640;

  /** The default height of the report pane. */
  public static final int DEFAULT_REPORT_PANE_HEIGHT = 480;
  public static final String LARGE_ICONS_ENABLED_PROPERTY = "com.jrefinery.report.preview.LargeIconsEnabled";
  public static final String TOOLBAR_FLOATABLE_PROPERTY = "com.jrefinery.report.preview.ToolbarFloatable";

  /**
   * A wrapper action.
   */
  private class WrapperAction implements Action
  {
    /** The parent action. */
    private Action parent;

    /**
     * Creates a new action.
     *
     * @param parent  the parent action (null not permitted).
     */
    public WrapperAction(final Action parent)
    {
      setParent(parent);
    }

    /**
     * Returns the parent action.
     *
     * @return the parent action.
     */
    public Action getParent()
    {
      return parent;
    }

    /**
     * Sets the parent action.
     *
     * @param parent  the parent action (null not permitted).
     */
    public void setParent(final Action parent)
    {
      if (parent == null)
      {
        throw new NullPointerException();
      }
      this.parent = parent;
      registerAction(parent);
    }

    /**
     * Gets one of this object's properties using the associated key.
     *
     * @param key  the key.
     *
     * @return the property value.
     *
     * @see #putValue
     */
    public Object getValue(final String key)
    {
      return parent.getValue(key);
    }

    /**
     * Invoked when an action occurs.
     *
     * @param e  the event.
     */
    public void actionPerformed(final ActionEvent e)
    {
      parent.actionPerformed(e);
    }

    /**
     * Sets one of this object's properties
     * using the associated key. If the value has
     * changed, a <code>PropertyChangeEvent</code> is sent
     * to listeners.
     *
     * @param key    a <code>String</code> containing the key.
     * @param value  an <code>Object</code> value.
     */
    public void putValue(final String key, final Object value)
    {
      parent.putValue(key, value);
    }

    /**
     * Sets the enabled state of the <code>Action</code>.  When enabled,
     * any component associated with this object is active and
     * able to fire this object's <code>actionPerformed</code> method.
     * If the value has changed, a <code>PropertyChangeEvent</code> is sent
     * to listeners.
     *
     * @param  b true to enable this <code>Action</code>, false to disable it.
     */
    public void setEnabled(final boolean b)
    {
      parent.setEnabled(b);
    }

    /**
     * Returns the enabled state of the <code>Action</code>. When enabled,
     * any component associated with this object is active and
     * able to fire this object's <code>actionPerformed</code> method.
     *
     * @return true if this <code>Action</code> is enabled.
     */
    public boolean isEnabled()
    {
      return parent.isEnabled();
    }

    /**
     * Adds a <code>PropertyChange</code> listener. Containers and attached
     * components use these methods to register interest in this
     * <code>Action</code> object. When its enabled state or other property
     * changes, the registered listeners are informed of the change.
     *
     * @param listener  a <code>PropertyChangeListener</code> object.
     */
    public void addPropertyChangeListener(final PropertyChangeListener listener)
    {
      parent.addPropertyChangeListener(listener);
    }

    /**
     * Removes a <code>PropertyChange</code> listener.
     *
     * @param listener  a <code>PropertyChangeListener</code> object
     * @see #addPropertyChangeListener
     */
    public void removePropertyChangeListener(final PropertyChangeListener listener)
    {
      parent.removePropertyChangeListener(listener);
    }
  }

  /**
   * A property change listener.
   */
  private class ReportPanePropertyChangeListener implements PropertyChangeListener
  {
    /**
     * Creates a new listener.
     */
    public ReportPanePropertyChangeListener()
    {
    }

    /**
     * Listen to the assigned reportPane.
     *
     * @param event  the property change event.
     */
    public void propertyChange(final PropertyChangeEvent event)
    {
      final String property = event.getPropertyName();
      final ReportPane reportPane = getReportPane();

      if (property.equals(ReportPane.PAGINATED_PROPERTY))
      {
        if (reportPane.isPaginated())
        {
          // is paginated ...
          final Object[] params = new Object[]{
            new Integer(reportPane.getPageNumber()),
            new Integer(reportPane.getNumberOfPages())
          };
          setStatusText(
              MessageFormat.format(
                  getResources().getString("statusline.pages"),
                  params
              )
          );
          validateButtons();
        }
        else
        {
          // is not paginated ... ignore event ...
        }
      }
      else if (property.equals(ReportPane.PAGENUMBER_PROPERTY)
          || property.equals(ReportPane.NUMBER_OF_PAGES_PROPERTY))
      {

        final Object[] params = new Object[]{
          new Integer(reportPane.getPageNumber()),
          new Integer(reportPane.getNumberOfPages())
        };
        setStatusText(
            MessageFormat.format(
                getResources().getString("statusline.pages"),
                params
            )
        );
        validateButtons();
      }
      else if (property.equals(ReportPane.ERROR_PROPERTY))
      {
        if (reportPane.hasError())
        {
          final Exception ex = reportPane.getError();

          ex.printStackTrace();
          setStatusText(
              MessageFormat.format(
                  getResources().getString("statusline.error"),
                  new Object[]{ex.getMessage()}
              )
          );
        }
        validateButtons();
      }
      else if (property.equals(ReportPane.ZOOMFACTOR_PROPERTY))
      {
        validateButtons();
        validate();
      }
    }
  }

  /**
   * Default 'first page' action.
   */
  private class DefaultFirstPageAction extends FirstPageAction
  {
    /**
     * Creates a 'first page' action.
     */
    public DefaultFirstPageAction()
    {
      super(getResources());
    }

    /**
     * Jump to the first page of the report.
     *
     * @param e The action event.
     *
     * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
     */
    public void actionPerformed(final ActionEvent e)
    {
      firstPage();
    }
  }

  /**
   * Default 'next page' action for the frame.
   */
  private class DefaultNextPageAction extends NextPageAction
  {

    /**
     * Creates a 'next page' action.
     */
    public DefaultNextPageAction()
    {
      super(getResources());
    }

    /**
     * show the next page of the report.
     *
     * @param e The action event.
     */
    public void actionPerformed(final ActionEvent e)
    {
      increasePageNumber();
    }
  }

  /**
   * Default 'previous page' action for the frame.
   */
  private class DefaultPreviousPageAction extends PreviousPageAction
  {
    /**
     * Creates a 'previous page' action.
     */
    public DefaultPreviousPageAction()
    {
      super(getResources());
    }

    /**
     * show the previous page of the report.
     * @param e The action event.
     */
    public void actionPerformed(final ActionEvent e)
    {
      decreasePageNumber();
    }
  }

  /**
   * Default 'last page' action for the frame.
   */
  private class DefaultLastPageAction extends LastPageAction
  {
    /**
     * Creates a 'last page' action.
     */
    public DefaultLastPageAction()
    {
      super(getResources());
    }

    /**
     * jump to the last page of the report.
     *
     * @param e The action event.
     * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
     */
    public void actionPerformed(final ActionEvent e)
    {
      lastPage();
    }
  }

  /**
   * Default 'zoom in' action for the frame.
   */
  private class DefaultZoomInAction extends ZoomInAction
  {

    /**
     * Creates a 'zoom in' action.
     */
    public DefaultZoomInAction()
    {
      super(getResources());
    }

    /**
     * increase zoom.
     * @param e The action event.
     */
    public void actionPerformed(final ActionEvent e)
    {
      increaseZoom();
    }
  }

  /**
   * Default 'zoom out' action for the frame.
   */
  private class DefaultZoomOutAction extends ZoomOutAction
  {
    /**
     * Creates a 'zoom out' action.
     */
    public DefaultZoomOutAction()
    {
      super(getResources());
    }

    /**
     * decrease zoom.
     * @param e The action event.
     */
    public void actionPerformed(final ActionEvent e)
    {