openinnewwindowaction.java

具有不同语法高亮的编辑器实例

/*
 * 11/14/2003
 *
 * OpenInNewWindowAction.java - Action to open a document in a new RText
 *                              window.
 * Copyright (C) 2003 Robert Futrell
 * [e-mail]
 * www.website.com
 *
 * This file is a part of RText.
 *
 * RText is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * RText 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package org.fife.rtext;

import java.awt.event.ActionEvent;
import java.io.File;
import java.io.FileNotFoundException;
import javax.swing.AbstractAction;
import javax.swing.ImageIcon;
import javax.swing.JOptionPane;
import javax.swing.KeyStroke;

import org.fife.ui.rtextfilechooser.RTextFileChooser;

/**
 * Action used by an <code>AbstractMainView</code> to open a document
 * in a new window.
 *
 * @author Robert Futrell
 * @version 1.0
 */
class OpenInNewWindowAction
    extends AbstractAction
    implements Runnable {

  private RText owner;
  private RText newWindow;

      /*****************************************************************************/

  /**
   * Creates a new <code>OpenInNewWindowAction</code>.
   *
   * @param text The text associated with the action.
   * @param icon The icon associated with the action.
   * @param desc The description of the action (used in tooltips???).
   * @param mnemonic The mnemonic for the action.
   * @param accelerator The accelerator key for the action.
   * @param rtext The RText window you'd like the new RText window to be
   *              modeled after (usually the one that owns this action).
   */
  public OpenInNewWindowAction(String text, ImageIcon icon, String desc,
                               Integer mnemonic,
                               KeyStroke accelerator, RText rtext) {

    // Initialize properties for this action.
    super(text, icon);
    putValue(SHORT_DESCRIPTION, desc);
    putValue(ACCELERATOR_KEY, accelerator);
    putValue(MNEMONIC_KEY, mnemonic);
    this.owner = rtext;

  }

      /*****************************************************************************/

  // Executed when the new rtext "thread" is created.
  public synchronized void run() {
    newWindow = new RText(null,
                          (RTextPreferences) RTextPreferences.
                          generatePreferences(owner));
    newWindow.setVisible(true);
    StoreKeeper.addRTextInstance(newWindow);
    notifyAll(); // Tell the waiting window that we're done.
  }

      /*****************************************************************************/

  // Callback routine called when user uses this component.
  public synchronized void actionPerformed(ActionEvent e) {

    // Create and start up a new rtext "thread" (really multiple threads, but whatever).
    Thread newWindowThread = new Thread(this, "newWindowThread");
    newWindowThread.start();

    // We have to wait on the new window to be created before we can open it's Open dialog.
    try {
      wait();
    }
    catch (InterruptedException ie) {}

    // Initialize the file chooser to be an Open dialog.
    RTextFileChooser chooser = newWindow.getFileChooser();
    chooser.setMultiSelectionEnabled(true); // Allow multiple files to be simultaneously opened.
    //chooser.setUnderlinedFiles(null);					// Unnecessary since no files are yet open!
    //chooser.setEncoding(RTextFileChooser.ASCII_ENCODING);	// Unnecessary since encoding hasn't changed yet.
    int returnVal = chooser.showOpenDialog(newWindow); // Let them choose a file.

    // If they selected a file and clicked "OK", open the flie!
    if (returnVal == javax.swing.JFileChooser.APPROVE_OPTION) {

      AbstractMainView newMainView = newWindow.getMainView();
      RTextEditorPane newCurrentTextArea = newMainView.currentTextArea;
      String encoding = chooser.getEncoding();

      // First, remove old listeners.
      if (newCurrentTextArea != null) {
        newCurrentTextArea.getDocument().removeDocumentListener(newWindow);
        newCurrentTextArea.removeCaretListener(newWindow);
        newCurrentTextArea.removeKeyListener(newWindow);
      }

      // If the only document open is untitled and empty, remove
      // (and thus replace) replace it.
      if (newMainView.getNumDocuments() == 1 &&
          newCurrentTextArea.getFileName().equals(owner.getNewFileName()) &&
          newCurrentTextArea.getText().equals("")) {
        newMainView.closeCurrentDocument();
      }

      // Add each file, one at a time, to our tabbed pane.
      File[] selectedFiles = chooser.getSelectedFiles();
      for (int i = 0; i < selectedFiles.length; i++) {

        try {
          newMainView.addOldTextFile(selectedFiles[i].getAbsolutePath(),
                                     encoding); // Exception is thrown here.
          newMainView.moveToTopOfCurrentDocument();
        }
        catch (FileNotFoundException f) {}

      }

    } // End of if (returnVal == JFileChooser.APPROVE_OPTION).

  }

      /*****************************************************************************/

}