JGraphpadDemo.java :  » Graphic-Library » jgraphpad » com » jgraph » Java Open Source

/*
 * $Id: JGraphpadDemo.java,v 1.1 2006/01/31 15:33:25 gaudenz Exp $
 * Copyright (c) 2001-2005, Gaudenz Alder
 * 
 * All rights reserved.
 * 
 * See LICENSE file for license details. If you are unable to locate
 * this file please contact info (at) jgraph (dot) com.
 */
package com.jgraph;

import java.awt.Window;
import java.io.IOException;
import java.net.MalformedURLException;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;

import javax.xml.parsers.ParserConfigurationException;

import org.xml.sax.SAXException;

import com.jgraph.editor.JGraphEditorFile;
import com.jgraph.editor.JGraphEditorKit;
import com.jgraph.editor.JGraphEditorModel;
import com.jgraph.pad.action.JGraphpadFileAction;

/**
 * @author Administrator
 * 
 */
public class JGraphpadDemo extends JGraphpad {

  /**
   * 
   */
  private static final String MESSAGE = "This demo does not allow to open or save files.";

  /**
   * Issues a warning message in the online demo.
   */
  public Window createApplication(List files, Map args)
      throws ParserConfigurationException, SAXException, IOException {
    args.put(ARG_JGOODIESLOOKANDFEEL, "");
    Window wnd = super.createApplication(null, args);
    System.err.println(MESSAGE);
    return wnd;
  }

  /**
   * Creates a model that does not allow to add files.
   */
  protected JGraphEditorModel createModel() {
    JGraphEditorModel model = new JGraphEditorModel() {
      public Object addFile(String uri) {
        throw new RuntimeException(MESSAGE);
      }
    };
    configureModel(model);
    return model;
  }

  /**
   * Replaces some actions with empty implementations.
   */
  protected void addActions(JGraphEditor editor, JGraphEditorKit kit) {
    super.addActions(editor, kit);
    kit.addBundle(new AllActions(editor));
  }

  /**
   * Replaces file open / save action with different actions.
   * 
   */
  public static class JGraphpadDemoFileAction extends JGraphpadFileAction {

    /**
     * @param name
     * @param editor
     */
    public JGraphpadDemoFileAction(String name, JGraphEditor editor) {
      super(name, editor);
    }

    /**
     * Replaces the saveFile action with an error message.
     */
    protected void doSaveFile(JGraphEditorFile file,
        boolean forceFilenameDialog, boolean urlDialog)
        throws IOException {
      throw new RuntimeException(MESSAGE);
    }

    /**
     * Replaces the open action with an error message.
     */
    public void doSave(String filename, byte[] data) throws Exception {
      throw new RuntimeException(MESSAGE);
    }

    /**
     * Replaces the saveFile action with an error message.
     */
    protected void doOpenFile(String filename)
        throws MalformedURLException, IOException {
      throw new RuntimeException(MESSAGE);
    }

  }

  /**
   * Bundle of all actions in this class.
   */
  public static class AllActions extends JGraphpadFileAction.AllActions {

    /**
     * Constructs the action bundle for the specified editor.
     * 
     * @param editor
     *            The enclosing editor for this bundle.
     */
    public AllActions(JGraphEditor editor) {
      super(editor);
      actionClose = new JGraphpadDemoFileAction(
          JGraphpadFileAction.NAME_CLOSE, editor);
      actionCloseAll = new JGraphpadDemoFileAction(
          JGraphpadFileAction.NAME_CLOSE, editor);
      actionOpen = new JGraphpadDemoFileAction(
          JGraphpadFileAction.NAME_OPEN, editor);
      actionSave = new JGraphpadDemoFileAction(
          JGraphpadFileAction.NAME_SAVE, editor);
      actionSaveAs = new JGraphpadDemoFileAction(
          JGraphpadFileAction.NAME_SAVEAS, editor);
      actionSaveAll = new JGraphpadDemoFileAction(
          JGraphpadFileAction.NAME_SAVEALL, editor);
    }

    /*
     * (non-Javadoc)
     */
    public void update() {
      actionOpen.setEnabled(false);
      actionSave.setEnabled(false);
      actionSaveAs.setEnabled(false);
      actionSaveAll.setEnabled(false);
      actionUploadAs.setEnabled(false);
    }

  }

  //
  // Main
  //

  /**
   * Constructs and displays a new application window.
   * 
   * @param args
   *            The command line arguments to pass to the application.
   */
  public static void main(String[] args) {
    try {
      new JGraphpadDemo().createApplication(null, new Hashtable());
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}