findaction.java

具有不同语法高亮的编辑器实例

/*
 * 11/14/2003
 *
 * FindAction.java - Action for searching for text 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.JButton;
import javax.swing.KeyStroke;

import org.fife.ui.search.FindDialog;
import org.fife.ui.search.ReplaceDialog;


/**
 * Action used by an <code>AbstractMainView</code> to search for text.
 *
 * @author Robert Futrell
 * @version 1.0
 */
class FindAction extends AbstractAction {

	private RText rtext;


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


	/**
	 * Creates a new <code>FindAction</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> instance.
	 */
	public FindAction(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 performed.
	 */
	public void actionPerformed(ActionEvent e) {

		// If the QuickSearch bar is visible, shift focus to that instead
		// of displaying the Find dialog if they hit Ctrl+F or chose the
		// menu item (i.e., the toolbar "Find" button still brings up the
		// Find dialog).
		if (!(e.getSource() instanceof JButton) &&
				rtext.isSearchToolBarVisible()) {
			rtext.getSearchToolBar().grabFocus();
			return;
		}

		AbstractMainView mainView = rtext.getMainView();

		// Lazily create find and replace dialogs if necessary.
		if (mainView.findDialog==null) {
			mainView.findDialog = new FindDialog(rtext, mainView);
			mainView.replaceDialog = new ReplaceDialog(rtext, mainView);
			mainView.findDialog.addActionListener(mainView);
			mainView.replaceDialog.addActionListener(mainView);
			mainView.findDialog.addPropertyChangeListener(mainView);
			mainView.replaceDialog.addPropertyChangeListener(mainView);
		}

		FindDialog findDialog = mainView.findDialog;
		boolean findDialogVisible = findDialog.isVisible();

		// Display the Find dialog if necessary.
		if (!findDialogVisible && !mainView.replaceDialog.isVisible()) {

			findDialog.setSearchParameters(mainView.searchStrings,
									mainView.searchMatchCase,
									mainView.searchWholeWord,
									mainView.searchRegExpression,
									!mainView.searchingForward,
									mainView.searchMarkAll);

			// If the current document has selected text, use the selection
			// as the value to search for.
			String selectedText = mainView.currentTextArea.getSelectedText();
			if (selectedText!=null)
				findDialog.setSearchString(selectedText);

			findDialog.setVisible(true);

		}

		// If ths find dialog is visible but not enabled, have it request
		// focus.
		else if (findDialogVisible) {
			findDialog.toFront();
		}

	}


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

}