configeditor.java

来自「swing编写的库存管理程序。毕业设计类」· Java 代码 · 共 744 行 · 第 1/2 页

/**
 * ========================================
 * JFreeReport : a free Java report library
 * ========================================
 *
 * Project Info:  http://www.jfree.org/jfreereport/index.html
 * Project Lead:  Thomas Morgner ([e-mail]);
 *
 * (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.
 *
 * ------------------------------
 * ConfigEditor.java
 * ------------------------------
 * (C)opyright 2003, by Thomas Morgner and Contributors.
 *
 * Original Author:  Thomas Morgner;
 * Contributor(s):   David Gilbert (for Simba Management Limited);
 *
 * $Id: ConfigEditor.java,v 1.9 2003/11/07 18:33:51 taqua Exp $
 *
 * Changes
 * -------------------------
 * 28-Jul-2003 : Initial version
 *
 */

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

import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Properties;
import java.util.ResourceBundle;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.JComponent;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTree;
import javax.swing.UIManager;
import javax.swing.border.EmptyBorder;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.DefaultTreeSelectionModel;
import javax.swing.tree.TreePath;
import javax.swing.tree.TreeSelectionModel;

import org.jfree.report.Boot;
import org.jfree.report.modules.gui.base.components.AbstractActionDowngrade;
import org.jfree.report.modules.gui.base.components.ActionButton;
import org.jfree.report.modules.gui.base.components.FilesystemFilter;
import org.jfree.report.modules.gui.config.editor.ConfigEditorPanel;
import org.jfree.report.modules.gui.config.model.ConfigDescriptionEntry;
import org.jfree.report.modules.gui.config.model.ConfigTreeModel;
import org.jfree.report.modules.gui.config.model.ConfigTreeModelException;
import org.jfree.report.modules.gui.config.model.ConfigTreeModuleNode;
import org.jfree.report.modules.gui.config.resources.ConfigResources;
import org.jfree.report.util.LineBreakIterator;
import org.jfree.report.util.Log;
import org.jfree.report.util.ReportConfiguration;
import org.jfree.report.util.StringUtil;

/**
 * The ConfigEditor can be used to edit the global jfreereport.properties files.
 * These files provide global settings for all reports and contain the system
 * level configuration of JFreeReport.
 *
 * @author Thomas Morgner
 */
public class ConfigEditor extends JFrame
{
  /**
   * An Action to handle close requests.
   */
  private class CloseAction extends AbstractActionDowngrade
  {
    /**
     * DefaultConstructor.
     */
    public CloseAction()
    {
      putValue(NAME, getResources().getString("action.exit.name"));
    }

    /**
     * Invoked when an action occurs. The action invokes System.exit(0).
     *
     * @param e the action event.
     */
    public void actionPerformed(final ActionEvent e)
    {
      attempClose();
    }
  }

  /**
   * An action to handle save requests.
   */
  private class SaveAction extends AbstractActionDowngrade
  {
    /**
     * DefaultConstructor.
     */
    public SaveAction()
    {
      putValue(NAME, getResources().getString("action.save.name"));
      putValue(SMALL_ICON, getResources().getObject("action.save.small-icon"));
    }

    /**
     * Saves the configuration.
     * @param e the action event.
     */
    public void actionPerformed(final ActionEvent e)
    {
      save();
    }
  }

  /**
   * An action to handle load requests.
   */
  private class LoadAction extends AbstractActionDowngrade
  {
    /**
     * DefaultConstructor.
     */
    public LoadAction()
    {
      putValue(NAME, getResources().getString("action.load.name"));
      putValue(SMALL_ICON, getResources().getObject("action.load.small-icon"));
    }

    /**
     * Loads the configuration.
     * @param e the action event.
     */
    public void actionPerformed(final ActionEvent e)
    {
      load();
    }
  }

  /**
   * An action to handle new requests, which reset the report configuration.
   */
  private class NewAction extends AbstractActionDowngrade
  {
    /**
     * DefaultConstructor.
     */
    public NewAction()
    {
      putValue(NAME, getResources().getString("action.new.name"));
      putValue(SMALL_ICON, getResources().getObject("action.new.small-icon"));
    }

    /**
     * Reset the configuration.
     * @param e the action event.
     */
    public void actionPerformed(final ActionEvent e)
    {
      reset();
    }
  }

  /**
   * This class handles the tree selection events and activates the
   * detail editors.
   */
  private class ModuleTreeSelectionHandler implements TreeSelectionListener
  {
    /**
     * DefaultConstructor.
     */
    public ModuleTreeSelectionHandler()
    {
    }

    /**
     * Called whenever the value of the selection changes.
     * @param e the event that characterizes the change.
     */
    public void valueChanged(final TreeSelectionEvent e)
    {
      final TreePath path = e.getPath();
      final Object lastPathElement = path.getLastPathComponent();
      if (lastPathElement instanceof ConfigTreeModuleNode)
      {
        final ConfigTreeModuleNode node = (ConfigTreeModuleNode) lastPathElement;
        ConfigEditorPanel detailEditorPane = getDetailEditorPane();
        detailEditorPane.store();
        detailEditorPane.editModule
            (node.getModule(), node.getConfiguration(), node.getAssignedKeys());
      }
    }
  }

  /** 
   * A constant defining that text should be escaped in a way 
   * which is suitable for property keys. 
   */
  private static final int ESCAPE_KEY = 0;
  /** 
   * A constant defining that text should be escaped in a way 
   * which is suitable for property values. 
   */
  private static final int ESCAPE_VALUE = 1;
  /** 
   * A constant defining that text should be escaped in a way 
   * which is suitable for property comments. 
   */
  private static final int ESCAPE_COMMENT = 2;

  /** The name of the resource bundle implementation used in this dialog. */
  private static final String RESOURCE_BUNDLE =
      ConfigResources.class.getName();
  /** A label that serves as status bar. */
  private JLabel statusHolder;
  /** The resource bundle instance of this dialog. */
  private final ResourceBundle resources;

  /** The detail editor for the currently selected tree node. */
  private final ConfigEditorPanel detailEditorPane;
  /** The tree model used to display the structure of the report configuration.*/
  private ConfigTreeModel treeModel;

  /** The currently used report configuration. */
  private final ReportConfiguration currentReportConfiguration;
  /** The file chooser used to load and save the report configuration. */
  private JFileChooser fileChooser;


  /**
   * Constructs a new ConfigEditor.
   *
   * @throws ConfigTreeModelException if the tree model could not be built.
   */
  public ConfigEditor() throws ConfigTreeModelException
  {
    resources = ResourceBundle.getBundle(RESOURCE_BUNDLE);
    currentReportConfiguration = new ReportConfiguration
        (ReportConfiguration.getGlobalConfig());
    detailEditorPane = new ConfigEditorPanel();

    setTitle(resources.getString("config-editor.title"));


    final JSplitPane splitPane = new JSplitPane
        (JSplitPane.HORIZONTAL_SPLIT, createEntryTree(),
            detailEditorPane);

    final JPanel contentPane = new JPanel();
    contentPane.setLayout(new BorderLayout());
    contentPane.add(splitPane, BorderLayout.CENTER);
    contentPane.add(createButtonPane(), BorderLayout.SOUTH);


    final JPanel cPaneStatus = new JPanel();
    cPaneStatus.setLayout(new BorderLayout());
    cPaneStatus.add(contentPane, BorderLayout.CENTER);
    cPaneStatus.add(createStatusBar(), BorderLayout.SOUTH);

    setContentPane(cPaneStatus);

    addWindowListener(new WindowAdapter()
    {
      /**
       * Invoked when a window is in the process of being closed.
       * The close operation can be overridden at this point.
       */
      public void windowClosing(final WindowEvent e)
      {
        attempClose();
      }
    });

  }

  /**
   * Returns the resource bundle of this editor for translating strings. 
   * @return the resource bundle.
   */
  protected ResourceBundle getResources ()
  {
    return resources;
  }
  
  /**
   * Creates the JTree for the report configuration.
   *
   * @return the tree component.
   * @throws ConfigTreeModelException if the model could not be built.
   */
  private JComponent createEntryTree() throws ConfigTreeModelException
  {
    final InputStream in = getClass().getResourceAsStream("config-description.xml");
    if (in == null)
    {
      throw new IllegalStateException("Missing resource 'config-description.xml'");
    }
    treeModel = new ConfigTreeModel(in);
    treeModel.init(currentReportConfiguration);

    final TreeSelectionModel selectionModel = new DefaultTreeSelectionModel();
    selectionModel.setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);

    final JTree tree = new JTree(treeModel);
    tree.setSelectionModel(selectionModel);
    tree.setCellRenderer(new ConfigTreeRenderer());
    tree.setRootVisible(false);
    tree.setShowsRootHandles(true);
    tree.addTreeSelectionListener(new ModuleTreeSelectionHandler());

    final JScrollPane pane = new JScrollPane
        (tree, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
            JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
    return pane;
  }

  /**
   * Creates the button pane to hold all control buttons.
   *
   * @return the created panel with all control buttons.
   */
  private JPanel createButtonPane()
  {
    final Action closeAction = new CloseAction();
    final Action saveAction = new SaveAction();
    final Action loadAction = new LoadAction();
    final Action newAction = new NewAction();

    final JPanel panel = new JPanel();
    panel.setLayout(new FlowLayout(FlowLayout.RIGHT));
    panel.setBorder(new EmptyBorder(5, 5, 5, 5));

    final JPanel buttonHolder = new JPanel();
    buttonHolder.setLayout(new GridLayout(1, 4));
    buttonHolder.add(new ActionButton(newAction));