XmlBindingTools.java

/*FreeMind - A Program for creating and viewing Mindmaps
 *Copyright (C) 2000-2004  Joerg Mueller, Daniel Polansky, Christian Foltin and others.
 *
 *See COPYING for Details
 *
 *This program 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 (at your option) any later version.
 *
 *This program 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.
 *
 * Created on 23.06.2004
 */
/*$Id: XmlBindingTools.java,v 1.1.2.2.2.5 2009/05/20 19:19:11 christianfoltin Exp $*/

package freemind.common;

import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Toolkit;
import java.io.Reader;
import java.io.StringReader;
import java.io.StringWriter;

import javax.swing.JDialog;
import javax.swing.JOptionPane;

import org.jibx.runtime.BindingDirectory;
import org.jibx.runtime.IBindingFactory;
import org.jibx.runtime.IMarshallingContext;
import org.jibx.runtime.IUnmarshallingContext;
import org.jibx.runtime.JiBXException;

import freemind.controller.Controller;
import freemind.controller.actions.generated.instance.WindowConfigurationStorage;
import freemind.controller.actions.generated.instance.XmlAction;
import freemind.main.Resources;

/**
 * @author foltin Singleton
 */
public class XmlBindingTools {

	private static XmlBindingTools instance;
	private static IBindingFactory mBindingFactory;

	private XmlBindingTools() {
	}

	public static XmlBindingTools getInstance() {
		if (instance == null) {
			instance = new XmlBindingTools();
			try {
				mBindingFactory = BindingDirectory.getFactory(XmlAction.class);
			} catch (JiBXException e) {
				freemind.main.Resources.getInstance().logException(e);
			}

		}
		return instance;
	}

	public IMarshallingContext createMarshaller() {
		try {
			return mBindingFactory.createMarshallingContext();
		} catch (JiBXException e) {
			freemind.main.Resources.getInstance().logException(e);
			return null;
		}
	}

	public IUnmarshallingContext createUnmarshaller() {
		try {
			return mBindingFactory.createUnmarshallingContext();
		} catch (JiBXException e) {
			freemind.main.Resources.getInstance().logException(e);
			return null;
		}
	}

	public void storeDialogPositions(Controller controller, JDialog dialog,
			WindowConfigurationStorage storage,
			String window_preference_storage_property) {
		String result = storeDialogPositions(storage, dialog);
		controller.setProperty(window_preference_storage_property, result);
	}

	protected String storeDialogPositions(WindowConfigurationStorage storage,
			JDialog dialog) {
		storage.setX((dialog.getX()));
		storage.setY((dialog.getY()));
		storage.setWidth((dialog.getWidth()));
		storage.setHeight((dialog.getHeight()));
		String marshalled = marshall(storage);
		String result = marshalled;
		return result;
	}

	public WindowConfigurationStorage decorateDialog(Controller controller,
			JDialog dialog, String window_preference_storage_property) {
		String marshalled = controller
				.getProperty(window_preference_storage_property);
		WindowConfigurationStorage result = decorateDialog(marshalled, dialog);
		return result;
	}

	public WindowConfigurationStorage decorateDialog(String marshalled,
			JDialog dialog) {
		// String unmarshalled = controller.getProperty(
		// propertyName);
		if (marshalled != null) {
			WindowConfigurationStorage storage = (WindowConfigurationStorage) unMarshall(marshalled);
			if (storage != null) {
				// Check that location is on current screen.
				Dimension screenSize;
				if (Resources.getInstance().getBoolProperty(
						"place_dialogs_on_first_screen")) {
					Toolkit defaultToolkit = Toolkit.getDefaultToolkit();
					screenSize = defaultToolkit.getScreenSize();
				} else {
					screenSize = new Dimension();
					screenSize.height = Integer.MAX_VALUE;
					screenSize.width = Integer.MAX_VALUE;
				}
				int delta = 20;
				dialog.setLocation(
						Math.min(storage.getX(), screenSize.width - delta),
						Math.min(storage.getY(), screenSize.height - delta));
				dialog.setSize(new Dimension(storage.getWidth(), storage
						.getHeight()));
				return storage;
			}
		}

		// set standard dialog size of no size is stored
		final Frame rootFrame = JOptionPane.getFrameForComponent(dialog);
		final Dimension prefSize = rootFrame.getSize();
		prefSize.width = prefSize.width * 3 / 4;
		prefSize.height = prefSize.height * 3 / 4;
		dialog.setSize(prefSize);
		return null;
	}

	public String marshall(XmlAction action) {
		// marshall:
		// marshal to StringBuffer:
		StringWriter writer = new StringWriter();
		IMarshallingContext m = XmlBindingTools.getInstance()
				.createMarshaller();
		try {
			m.marshalDocument(action, "UTF-8", null, writer);
		} catch (JiBXException e) {
			freemind.main.Resources.getInstance().logException(e);
			return null;
		}
		String result = writer.toString();
		return result;

	}

	public XmlAction unMarshall(String inputString) {
		return unMarshall(new StringReader(inputString));
	}

	/**
     */
	public XmlAction unMarshall(Reader reader) {
		try {
			// unmarshall:
			IUnmarshallingContext u = XmlBindingTools.getInstance()
					.createUnmarshaller();
			XmlAction doAction = (XmlAction) u.unmarshalDocument(reader, null);
			return doAction;
		} catch (JiBXException e) {
			freemind.main.Resources.getInstance().logException(e);
			return null;
		}
	}

}