replaceallaction.java

具有不同语法高亮的编辑器实例

/*
 * 11/14/2003
 *
 * ReplaceAllAction.java - Action to replace all occurance of a given string
 *                         with a new string in RText.
 * 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.util.ResourceBundle;
import javax.swing.AbstractAction;
import javax.swing.ImageIcon;
import javax.swing.JOptionPane;
import javax.swing.KeyStroke;

import org.fife.ui.search.FindDialog;


/**
 * Action used by an <code>AbstractMainView</code> to replace all occurences
 * of a given text string with new text.
 *
 * @author Robert Futrell
 * @version 1.0
 */
class ReplaceAllAction extends AbstractAction {

	// Contains the text area from which to copy.
	private RText rtext;


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


	/**
	 * Creates a new <code>ReplaceAllAction</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 <code>RText</code> that owns the
	 *              <code>ReplaceDialog</code>.
	 */
	public ReplaceAllAction(String text, ImageIcon icon, String desc,
						Integer mnemonic, KeyStroke accelerator,
						RText rtext) {
		super(text, icon);
		putValue(ACCELERATOR_KEY, accelerator);
		putValue(SHORT_DESCRIPTION, desc);
		putValue(MNEMONIC_KEY, mnemonic);
		this.rtext = rtext;
	}


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


	/**
	 * Callback routine called when user uses this component.
	 *
	 * @param e The action event.
	 */
	public void actionPerformed(ActionEvent e) {

		AbstractMainView mainView = rtext.getMainView();
		ResourceBundle msg = rtext.getResourceBundle();
		RTextEditorPane textArea = mainView.currentTextArea;

		// First, remember that they've searched for this string.
		mainView.searchStrings = mainView.replaceDialog.getSearchStrings();

		// Next, initialize some variables for this action.
		int startPos = 0;
		String searchString = mainView.replaceDialog.getSearchString();

		textArea.setCaretPosition(0);
		boolean matchCase = mainView.searchMatchCase;
		boolean wholeWord = mainView.searchWholeWord;
		boolean regex = mainView.searchRegExpression;
		boolean found = textArea.find(searchString, true, matchCase,
								wholeWord, regex);
		String escapedSearchString = RTextUtilities.
						getRegularExpressionForLine(searchString, true);
		if (found) {
			String replaceString = mainView.replaceDialog.
											getReplaceString();
			int numReplacements = 0;
			while (found) {
				textArea.replaceSelection(replaceString);
				numReplacements++;
				found = textArea.find(searchString, true, matchCase,
									wholeWord, regex);
			}
			String temp = msg.getString("ReplacedNOccString").
					replaceFirst("%num%", String.valueOf(numReplacements)).
					replaceFirst("%text%", escapedSearchString);
			JOptionPane.showMessageDialog(null, temp,
							msg.getString("InfoDialogHeader"),
							JOptionPane.INFORMATION_MESSAGE);
		}
		// Otherwise, if it's not found, tell them so.
		else {
			String temp = msg.getString("CannotFindString").
							replaceFirst("%text%", escapedSearchString);
			JOptionPane.showMessageDialog(null, temp,
							msg.getString("InfoDialogHeader"),
							JOptionPane.INFORMATION_MESSAGE);
		}

	}


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

}