relativehandler.java

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/* 
 * Copyright (c) 2005 FlexDock Development Team. All rights reserved. 
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy of 
 * this software and associated documentation files (the "Software"), to deal in the 
 * Software without restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
 * to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all 
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE.
 */
package org.flexdock.perspective.restore.handlers;

import java.util.Map;

import org.flexdock.docking.Dockable;
import org.flexdock.docking.DockingManager;
import org.flexdock.docking.state.DockingState;
import org.flexdock.perspective.PerspectiveManager;
import org.flexdock.util.DockingUtility;

/**
 * Created on 2005-05-12
 * 
 * @author <a href="mailto:[e-mail]">Mateusz Szczap</a>
 * @author <a href="mailto:[e-mail]">Christopher Butler</a>
 * @version $Id: RelativeHandler.java,v 1.4 2005/10/04 22:03:14 winnetou25 Exp $
 */
public class RelativeHandler implements RestorationHandler {

	public boolean restore(Dockable dockable, DockingState dockingState, Map context) {
		final Dockable parent = dockingState==null? null: dockingState.getRelativeParent();

		// in order to do a relative docking, the parent dockable
		// must already be docked.
		if(!DockingManager.isDocked(parent)) {
			return false;
		}
		
		// we can only do relative docking if the parent is embedded.
		// no relative docking if the parent is floating or minimized.
		final DockingState parentDockingState = PerspectiveManager.getInstance().getDockingState(parent);
		if(parentDockingState==null || parentDockingState.isFloating() || parentDockingState.isMinimized()) {
			return false;
		}
		
		final float splitRatio = dockingState.getSplitRatio();
		final String dockingRegion = dockingState.getRegion();
		boolean dockingOperationResult = DockingUtility.dockRelative(dockable, parent, dockingRegion, splitRatio);
		if(dockingOperationResult) {
			DockingUtility.setSplitProportion(dockable, splitRatio);
		}
		return dockingOperationResult;
    }

}