texteditorframe.java

这是有我个人开发的Java版文本编辑器。

  {
    TextEditorFrame_AboutBox dlg = new TextEditorFrame_AboutBox(this);
    Dimension dlgSize = dlg.getPreferredSize();
    Dimension frmSize = getSize();
    Point loc = getLocation();
    dlg.setLocation( (frmSize.width - dlgSize.width) / 2 + loc.x,
                    (frmSize.height - dlgSize.height) / 2 + loc.y);
    dlg.setModal(true);
    dlg.pack();
    dlg.show();
  }

  //Overridden so we can exit when window is closed
  protected void processWindowEvent(WindowEvent e)
  {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING)
    {
      jMenuFileExit_actionPerformed(null);
    }
  }

  void jMenuEditFont_actionPerformed(ActionEvent e)
  {
    // Handling the "Edit|Font" menu item

    // Pick up the existing font from the text area and put it
    // into the FontChooser before showing the FontChooser,
    // so that we are editing the current font.
    jFontChooser.setSelectedFont(jTextArea.getFont());

    // Test the return value of showDialog() to see if the user
    // pressed OK. Obtain the new Font from the FontChooser.
    if (jFontChooser.showDialog())
    {
      // Set the font of jTextArea to the font
      // the user selected before pressing the OK button.
      jTextArea.setFont(jFontChooser.getSelectedFont());
    }
  }

  void jMenuEditForeColor_actionPerformed(ActionEvent e)
  {
    // Handle the "Edit|Foreground Color" menu item
    Color foreColor = JColorChooser.showDialog(this, "Foreground Color",
                                               jTextArea.getForeground());

    if (foreColor != null)
    {
      jTextArea.setForeground(foreColor);
    }
  }

  void jMenuEditBackColor_actionPerformed(ActionEvent e)
  {
    // Handle the "Background Color" menu item
    Color backColor = JColorChooser.showDialog(this, "Background Color",
                                               jTextArea.getBackground());

    if (backColor != null)
    {
      jTextArea.setBackground(backColor);
    }
  }

  void jMenuFileNew_actionPerformed(ActionEvent e)
  {
    // Handle the File|New menu item.
    if (okToAbandon())
    {
      // Clears the text of the text area.
      jTextArea.setText("");

      // Clear the current filename and reset the file to clean.
      currentFileName = null;
      dirty = false;
      updateCaption();
    }
  }

  void jMenuFileOpen_actionPerformed(ActionEvent e)
  {
    // Handle the File|Open menu item.
    if (!okToAbandon())
      return;

    // Use the OPEN version of the dialog, test return for Approve/Cancel
    if (JFileChooser.APPROVE_OPTION == jFileChooser.showOpenDialog(this))
    {
      // Call openFile() method to attempt to load the text from file into JTextArea
      openFile(jFileChooser.getSelectedFile().getPath());

      //repaints menu after item is selected
      this.repaint();
    }
  }

  void jMenuFileSave_actionPerformed(ActionEvent e)
  {
    //Handle the File|Save menu item.
    saveFile();
  }

  void jMenuFileSaveAs_actionPerformed(ActionEvent e)
  {
    //Handle the File|Save As menu item.
    saveAsFile();
  }

  void jButtonOpenFile_actionPerformed(ActionEvent e)
  {
    //Handle toolbar Open button
    fileOpen();
  }

  void jButtonCloseFile_actionPerformed(ActionEvent e)
  {
    //Handle toolbar Close/Save button
    saveFile();
  }

  void jButtonHelp_actionPerformed(ActionEvent e)
  {
    //Handle toolbar Help button
    helpAbout();
  }

  void document_changedUpdate(DocumentEvent e)
  {
    dirty = true;
    updateCaption();
  }

  void document_insertUpdate(DocumentEvent e)
  {
    dirty = true;
    updateCaption();
  }

  void document_removeUpdate(DocumentEvent e)
  {
    dirty = true;
    updateCaption();
  }

}

class TextEditorFrame_jMenuFileExit_ActionAdapter
    implements ActionListener
{
  TextEditorFrame adaptee;

  TextEditorFrame_jMenuFileExit_ActionAdapter(TextEditorFrame adaptee)
  {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e)
  {
    adaptee.jMenuFileExit_actionPerformed(e);
  }
}

class TextEditorFrame_jMenuHelpAbout_ActionAdapter
    implements ActionListener
{
  TextEditorFrame adaptee;

  TextEditorFrame_jMenuHelpAbout_ActionAdapter(TextEditorFrame adaptee)
  {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e)
  {
    adaptee.jMenuHelpAbout_actionPerformed(e);
  }
}

class TextEditorFrame_jMenuEditFont_actionAdapter
    implements java.awt.event.ActionListener
{
  TextEditorFrame adaptee;

  TextEditorFrame_jMenuEditFont_actionAdapter(TextEditorFrame adaptee)
  {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e)
  {
    adaptee.jMenuEditFont_actionPerformed(e);
  }
}

class TextEditorFrame_jMenuEditForeColor_actionAdapter
    implements java.awt.event.ActionListener
{
  TextEditorFrame adaptee;

  TextEditorFrame_jMenuEditForeColor_actionAdapter(TextEditorFrame adaptee)
  {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e)
  {
    adaptee.jMenuEditForeColor_actionPerformed(e);
  }
}

class TextEditorFrame_jMenuEditBackColor_actionAdapter
    implements java.awt.event.ActionListener
{
  TextEditorFrame adaptee;

  TextEditorFrame_jMenuEditBackColor_actionAdapter(TextEditorFrame adaptee)
  {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e)
  {
    adaptee.jMenuEditBackColor_actionPerformed(e);
  }
}

class TextEditorFrame_jMenuFileNew_actionAdapter
    implements java.awt.event.ActionListener
{
  TextEditorFrame adaptee;

  TextEditorFrame_jMenuFileNew_actionAdapter(TextEditorFrame adaptee)
  {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e)
  {
    adaptee.jMenuFileNew_actionPerformed(e);
  }
}

class TextEditorFrame_jMenuFileOpen_actionAdapter
    implements java.awt.event.ActionListener
{
  TextEditorFrame adaptee;

  TextEditorFrame_jMenuFileOpen_actionAdapter(TextEditorFrame adaptee)
  {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e)
  {
    adaptee.jMenuFileOpen_actionPerformed(e);
  }
}

class TextEditorFrame_jMenuFileSave_actionAdapter
    implements java.awt.event.ActionListener
{
  TextEditorFrame adaptee;

  TextEditorFrame_jMenuFileSave_actionAdapter(TextEditorFrame adaptee)
  {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e)
  {
    adaptee.jMenuFileSave_actionPerformed(e);
  }
}

class TextEditorFrame_jMenuFileSaveAs_actionAdapter
    implements java.awt.event.ActionListener
{
  TextEditorFrame adaptee;

  TextEditorFrame_jMenuFileSaveAs_actionAdapter(TextEditorFrame adaptee)
  {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e)
  {
    adaptee.jMenuFileSaveAs_actionPerformed(e);
  }
}

class TextEditorFrame_jButtonOpenFile_actionAdapter
    implements java.awt.event.ActionListener
{
  TextEditorFrame adaptee;

  TextEditorFrame_jButtonOpenFile_actionAdapter(TextEditorFrame adaptee)
  {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e)
  {
    adaptee.jButtonOpenFile_actionPerformed(e);
  }
}

class TextEditorFrame_jButtonCloseFile_actionAdapter
    implements java.awt.event.ActionListener
{
  TextEditorFrame adaptee;

  TextEditorFrame_jButtonCloseFile_actionAdapter(TextEditorFrame adaptee)
  {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e)
  {
    adaptee.jButtonCloseFile_actionPerformed(e);
  }
}

class TextEditorFrame_jButtonHelp_actionAdapter
    implements java.awt.event.ActionListener
{
  TextEditorFrame adaptee;

  TextEditorFrame_jButtonHelp_actionAdapter(TextEditorFrame adaptee)
  {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e)
  {
    adaptee.jButtonHelp_actionPerformed(e);
  }
}

class TextEditorFrame_document_documentAdapter
    implements javax.swing.event.DocumentListener
{
  TextEditorFrame adaptee;

  TextEditorFrame_document_documentAdapter(TextEditorFrame adaptee)
  {
    this.adaptee = adaptee;
  }

  public void changedUpdate(DocumentEvent e)
  {
    adaptee.document_changedUpdate(e);
  }

  public void insertUpdate(DocumentEvent e)
  {
    adaptee.document_insertUpdate(e);
  }

  public void removeUpdate(DocumentEvent e)
  {
    adaptee.document_removeUpdate(e);
  }
}