/* ******************************************************************************
* 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.spreadsheet;
import org.xmind.core.ITopic;
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.core.event.ICoreEventSource;
import org.xmind.ui.branch.IBranchHook;
import org.xmind.ui.mindmap.IBranchPart;
public class SpreadsheetBranchHook implements IBranchHook, ICoreEventListener {
private IBranchPart branch;
private ICoreEventRegister register;
public void hook(IBranchPart branch) {
this.branch = branch;
ITopic topic = branch.getTopic();
if (topic instanceof ICoreEventSource) {
register = new CoreEventRegister((ICoreEventSource) topic, this);
register.register(Spreadsheet.EVENT_MODIFY_COLUMN_ORDER);
}
}
public void unhook(IBranchPart branch) {
if (register != null) {
register.unregisterAll();
register = null;
}
this.branch = null;
}
public void handleCoreEvent(CoreEvent event) {
if (branch != null
&& Spreadsheet.EVENT_MODIFY_COLUMN_ORDER.equals(event
.getType())) {
branch.getFigure().revalidate();
branch.getFigure().repaint();
}
}
}