getplaypenpanel.java

具有不同语法高亮的编辑器实例

package org.fife.rtext.plugins.rtextl10ngen;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.text.MessageFormat;
import java.util.ResourceBundle;
import javax.swing.*;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;

import org.fife.ui.app.WizardPluginDialog;
import org.fife.ui.app.WizardDialogInfoPanel;
import org.fife.ui.rtextfilechooser.RDirectoryChooser;


/**
 * The panel that gets the playpen for both the "Create L10n Playpen" and
 * "Merge Playpen with RText source" wizards.
 *
 * @author Robert Futrell
 * @version 1.0
 */
class GetPlaypenPanel extends WizardDialogInfoPanel implements ActionListener,
												DocumentListener {

	private JTextField playpenField;
	private ResourceBundle msg;

	private static final String BROWSE			= "Browse";


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


	/**
	 * Constructor.
	 *
	 * @param header The header.
	 * @param desc The description text.
	 * @param msg The plugin's resource bundle.
	 */
	public GetPlaypenPanel(String desc, ResourceBundle msg) {

		super(msg.getString("Plugin.Wizard.Common.PPen.Header"));
		this.msg = msg;

		setLayout(new BorderLayout());

		JPanel contentPane = new JPanel();
		contentPane.setLayout(new BoxLayout(contentPane, BoxLayout.Y_AXIS));
		JPanel temp = new JPanel(new BorderLayout());
		temp.add(new JLabel(desc));//, BorderLayout.WEST);
		contentPane.add(temp);
		contentPane.add(Box.createVerticalStrut(15));
		temp = new JPanel(new BorderLayout());
		temp.add(new JLabel(msg.getString("Plugin.Wizard.Common.PPen.Prompt")),
				BorderLayout.WEST);
		playpenField = new JTextField();
		playpenField.getDocument().addDocumentListener(this);
		JPanel temp2 = new JPanel(new BorderLayout());
		temp2.setBorder(BorderFactory.createEmptyBorder(0,5,0,5));
		temp2.add(playpenField);
		temp.add(temp2);
		JButton browseButton = new JButton(
						msg.getString("Plugin.Wizard.Common.Browse"));
		browseButton.setActionCommand(BROWSE);
		browseButton.addActionListener(this);
		temp.add(browseButton, BorderLayout.EAST);
		contentPane.add(temp);

		add(contentPane, BorderLayout.NORTH);

	}


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


	/**
	 * Called when an action is performed in this panel.
	 *
	 * @param e The event.
	 */
	public void actionPerformed(ActionEvent e) {

		String actionCommand = e.getActionCommand();

		if (BROWSE.equals(actionCommand)) {
			RDirectoryChooser chooser = new RDirectoryChooser(
						(Dialog)SwingUtilities.windowForComponent(this));
			chooser.setVisible(true);
			String dir = chooser.getChosenDirectory();
			if (dir!=null) {
				playpenField.setText(dir);
			}
		}

	}


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


	/**
	 * Never called.
	 */
	public void changedUpdate(DocumentEvent e) {
		handlePlaypenChanged();
	}


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


	/**
	 * Returns the directory specified by the user to use as the playpen.
	 *
	 * @return The playpen.
	 */
	public File getPlaypen() {
		return new File(playpenField.getText());
	}


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


	/**
	 * Called when the user changes the directory to use for the playpen.
	 */
	protected void handlePlaypenChanged() {
		setNextButtonEnabled(playpenField.getDocument().getLength()>0);
	}


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


	/**
	 * Called when the user selects a directory to use for the playpen.
	 *
	 * @param e A document event.
	 */
	public void insertUpdate(DocumentEvent e) {
		handlePlaypenChanged();
	}


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


	/**
	 * Called when this panel is displayed in the wizard.
	 */
	public void isDisplayed() {
		handlePlaypenChanged();
	}


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


	/**
	 * Called when the user modifies the playpen directory.
	 *
	 * @param e The document event.
	 */
	public void removeUpdate(DocumentEvent e) {
		handlePlaypenChanged();
	}


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


	/**
	 * Saves input from the user.  This method is called when the user clicks
	 * the "Next" button after giving any input needed for this panel.  The
	 * panel should use the <code>setWizarProperty</code> method of the
	 * wizard dialog to save entered data.
	 *
	 * @param dialog The wizard dialog.
	 */
	protected void saveUserInput(WizardPluginDialog dialog) {
		dialog.setWizardProperty("Playpen", getPlaypen());
	}


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


	/**
	 * Ensures all of the data entered by the user is valid.  If it is,
	 * <code>null</code> should be returned.  If it isn't, then a message
	 * is returned that is displayed, instructing the user on how to
	 * correct the error.
	 *
	 * @return <code>null</code> if all input in this panel is correct,
	 *         or a message explaining an error if errors exist.
	 */
	public String validateInput() {

		String desc = null;
		File playpen = getPlaypen();

		// If the playpen does not yet exist...
		if (!playpen.isDirectory() ) {

			// Check whether the parent exists.  If it does, try to create
			// the playpen.
			File parent = playpen.getParentFile();
			if (parent==null || parent.isDirectory()) {
				if (!playpen.mkdir()) {
					desc = msg.getString(
						"Plugin.Wizard.Common.Error.DirectoryNotCreated");
					desc = MessageFormat.format(desc,
							new Object[] { playpen.getAbsolutePath() });
				}
			}

			// If the parent does not exist, we cannot create the playpen!
			else {
				desc = msg.getString(
						"Plugin.Wizard.Common.Error.DirectoryNotExist");
				desc = MessageFormat.format(desc,
							new Object[] { parent.getAbsolutePath() });
			}

		}

		return desc;

	}


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

}