generaloptionpanel.java

具有不同语法高亮的编辑器实例

/*
 * 12/07/2004
 *
 * GeneralOptionPanel.java - Option panel for general RText options.
 * Copyright (C) 2004 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.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.File;
import java.util.ResourceBundle;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

import org.fife.RUtilities;
import org.fife.ui.OptionsDialog;
import org.fife.ui.OptionsDialogPanel;
import org.fife.ui.RButton;
import org.fife.ui.UIUtilities;
import org.fife.ui.rtextfilechooser.RDirectoryChooser;


/**
 * Option panel for general RText options.
 *
 * @author Robert Futrell
 * @version 0.1
 */
class GeneralOptionPanel extends OptionsDialogPanel
							implements ActionListener {

	private JTextField dirField;
	private RButton dirBrowseButton;

	private static final String NEW_FILE_DIR_PROPERTY	= "newFileDirectory";


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


	/**
	 * Constructor.
	 *
	 * @param rtext The owning RText instance.
	 * @param msg The resource bundle to use.
	 */
	public GeneralOptionPanel(final RText rtext, final ResourceBundle msg) {

		super(msg.getString("OptGenName"));

		Dimension spacer = new Dimension(5,5);

		// Set up our border and layout.
		setBorder(UIUtilities.getEmpty5Border());
		setLayout(new BorderLayout());

		// Create a panel for stuff aligned at the top.
		JPanel topPanel = new JPanel();
		topPanel.setLayout(new BoxLayout(topPanel, BoxLayout.Y_AXIS));
		topPanel.setBorder(new OptionPanelBorder(
							msg.getString("OptGenTitle")));

		// Create a panel for selecting the "new file directory."
		JPanel dirPanel = new JPanel();
		dirPanel.setLayout(new BoxLayout(dirPanel, BoxLayout.X_AXIS));
		JLabel dirLabel = new JLabel(msg.getString("OptGenWD"));
		dirField = new JTextField();
		dirField.setEditable(false);
		dirLabel.setLabelFor(dirField);
		dirBrowseButton = new RButton(msg.getString("Browse"));
		dirBrowseButton.setActionCommand("Browse");
		dirBrowseButton.addActionListener(this);
		dirPanel.add(dirLabel);
		dirPanel.add(Box.createRigidArea(spacer));
		dirPanel.add(dirField);
		dirPanel.add(Box.createRigidArea(spacer));
		dirPanel.add(dirBrowseButton);
		dirPanel.add(Box.createHorizontalGlue());
		topPanel.add(dirPanel);

		add(topPanel, BorderLayout.NORTH);

	}


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


	/**
	 * Called whenever an action occurs in this dialog.
	 *
	 * @param e The action event that occured.
	 */
	public void actionPerformed(ActionEvent e) {

		String actionCommand = e.getActionCommand();

		if (actionCommand.equals("Browse")) {
			OptionsDialog od = getOptionsDialog();
			RDirectoryChooser dc = new RDirectoryChooser(od);
			dc.setVisible(true);
			String chosenDir = dc.getChosenDirectory();
			if (chosenDir!=null) {
				File dir = new File(chosenDir);
				if (dir.isDirectory() &&
						!chosenDir.equals(dirField.getText())) {
					dirField.setText(chosenDir);
					hasUnsavedChanges = true;
					firePropertyChange(NEW_FILE_DIR_PROPERTY,
									null, chosenDir);
				}
			}
		}

	}


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


	/**
	 * Checks whether or not all input the user specified on this panel is
	 * valid.  This should be overridden to check, for example, whether
	 * text fields have valid values, etc.  This method will be called
	 * whenever the user clicks "OK" or "Apply" on the options dialog to
	 * ensure all input is valid.  If it isn't, the component with invalid
	 * data will be given focus and the user will be prompted to fix it.<br>
	 * 
	 *
	 * @return <code>null</code> always.
	 */
	public OptionsPanelCheckResult ensureValidInputs() {
		return null;
	}


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


	/**
	 * Returns the <code>JComponent</code> at the "top" of this Options
	 * panel.
	 */
	public JComponent getTopJComponent() {
		return dirBrowseButton;
	}


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


	/**
	 * Returns the working directory chosen by the user.
	 *
	 * @return The working directory.
	 * @see #setWorkingDirectory
	 */
	public String getWorkingDirectory() {
		return dirField.getText();
	}


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


	/**
	 * Sets the working directory displayed.
	 *
	 * @param directory The working directory to display.
	 * @see #getWorkingDirectory
	 */
	public void setWorkingDirectory(String directory) {
		dirField.setText(directory);
	}


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

}