htmlviewerframe.java

Java实例入门

/*
 * Copyright (c) 1996-2001 Borland Software Corporation. All Rights Reserved.
 *
 * This SOURCE CODE FILE, which has been provided by Borland Software as part
 * of an Borland Software product for use ONLY by licensed users of the product,
 * includes CONFIDENTIAL and PROPRIETARY information of Borland Software.
 *
 * USE OF THIS SOFTWARE IS GOVERNED BY THE TERMS AND CONDITIONS
 * OF THE LICENSE STATEMENT AND LIMITED WARRANTY FURNISHED WITH
 * THE PRODUCT.
 *
 * IN PARTICULAR, YOU WILL INDEMNIFY AND HOLD BORLAND SOFTWARE, ITS
 * RELATED COMPANIES AND ITS SUPPLIERS, HARMLESS FROM AND AGAINST ANY
 * CLAIMS OR LIABILITIES ARISING OUT OF THE USE, REPRODUCTION, OR
 * DISTRIBUTION OF YOUR PROGRAMS, INCLUDING ANY CLAIMS OR LIABILITIES
 * ARISING OUT OF OR RESULTING FROM THE USE, MODIFICATION, OR
 * DISTRIBUTION OF PROGRAMS OR FILES CREATED FROM, BASED ON, AND/OR
 * DERIVED FROM THIS SOURCE CODE FILE.
 */
//------------------------------------------------------------------------------
// Copyright (c) 1996-2001 Borland Software Corporation.  All Rights Reserved.
//------------------------------------------------------------------------------

package com.borland.samples.dbswing.htmlviewer;

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import com.borland.dbswing.*;

public class HtmlViewerFrame extends JFrame {
  JPanel jPanel1 = new JPanel();
  JTextPane jTextPane1 = new JTextPane();
  JButton helpButton = new JButton();
  JButton exitButton = new JButton();

  public HtmlViewerFrame() {
    try  {
      jbInit();
    }
    catch(Exception e) {
      DBExceptionHandler.handleException(e);
    }
  }

  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if(e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }

  private void jbInit() throws Exception {
    this.setTitle("dbSwing: HTML Help Viewer Sample");
    this.setSize(new Dimension(500, 275));

    jTextPane1.setText("\nThis sample demonstrates a simple help system built " +
      "from a JdbNavTree, a JdbTable, and a JdbEditorPane.  It works like this:\n" +
      "   1. The user selects a help topic in the JdbNavTree\n" +
      "   2. The JdbNavTree navigates to the corresponding row in the JdbTable\n" +
      "   3. The JdbEditorPane loads the HTML page for the URL in that row.\n\n" +
      "In this sample, the help content explains how to work with data-aware tree " +
      "components and how this sample was built.  Please select Help to see the " +
      "sample in action.");
    jTextPane1.setEditable(false);
    jTextPane1.setFont(new java.awt.Font("SansSerif", 1, 13));

    helpButton.setText("Help");
    helpButton.addActionListener(new java.awt.event.ActionListener() {

      public void actionPerformed(ActionEvent e) {
        helpButton_actionPerformed(e);
      }
    });

    exitButton.setText("Exit");
    exitButton.addActionListener(new java.awt.event.ActionListener() {

      public void actionPerformed(ActionEvent e) {
        exitButton_actionPerformed(e);
      }
    });

    this.getContentPane().add(jPanel1,  BorderLayout.SOUTH);
    jPanel1.add(helpButton, null);
    jPanel1.add(exitButton, null);
    this.getContentPane().add(jTextPane1,  BorderLayout.CENTER);
  }

  void helpButton_actionPerformed(ActionEvent e) {
    HtmlViewerHelpDialog dlg = new HtmlViewerHelpDialog(this);
    dlg.setSize(600, 450);
    Dimension dlgSize = dlg.getPreferredSize();
    Dimension frmSize = getSize();
    Point loc = getLocation();
    dlg.setLocation((frmSize.width - dlgSize.width) / 2 + loc.x, loc.y);
    dlg.setModal(false);
    dlg.show();
  }

  void exitButton_actionPerformed(ActionEvent e) {
    System.exit(0);
  }
}