/*
 * *****************************************************************************
 * * Copyright (c) 2006-2012 XMind Ltd. and others. This file is a part of XMind
 * 3. XMind releases 3 and above are dual-licensed under the Eclipse Public
 * License (EPL), which is available at
 * http://www.eclipse.org/legal/epl-v10.html and the GNU Lesser General Public
 * License (LGPL), which is available at http://www.gnu.org/licenses/lgpl.html
 * See http://www.xmind.net/license.html for details. Contributors: XMind Ltd. -
 * initial API and implementation
 *******************************************************************************/
package org.xmind.ui.internal.outline;

import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Widget;
import org.xmind.core.event.CoreEvent;
import org.xmind.core.event.CoreEventRegister;
import org.xmind.core.event.ICoreEventListener;
import org.xmind.core.event.ICoreEventRegister;
import org.xmind.gef.tree.TreePart;
import org.xmind.ui.util.MindMapUtils;

public class MindMapTreePartBase extends TreePart
        implements ICoreEventListener {

    private ICoreEventRegister eventRegister = null;

    public MindMapTreePartBase(Object model) {
        setModel(model);
    }

    protected void installModelListeners() {
        super.installModelListeners();
        Object m = getModel();
        eventRegister = new CoreEventRegister(m, this);
        registerCoreEvents(m, eventRegister);
    }

    protected void registerCoreEvents(Object source,
            ICoreEventRegister register) {
    }

    public void handleCoreEvent(CoreEvent event) {
    }

    protected void uninstallModelListeners() {
        if (eventRegister != null) {
            eventRegister.unregisterAll();
            eventRegister = null;
        }
    }

    protected void runInUI(Runnable job, boolean async) {
        Widget widget = getWidget();
        if (widget == null || widget.isDisposed())
            return;
        if (async) {
            widget.getDisplay().asyncExec(job);
        } else {
            widget.getDisplay().syncExec(job);
        }
    }

    @Override
    protected void setWidgetImage(Image image) {
        /// no image
    }

    protected String getText() {
        return MindMapUtils.trimSingleLine(MindMapUtils.getText(getModel()));
    }

    protected Image getImage() {
        return MindMapUtils.getImage(getModel());
    }

}