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/*******************************************************************************
* Copyright (c) 2013 THALES GLOBAL SERVICES.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.sirius.diagram.ui.tools.internal.figure.locator;
import java.util.Collection;
import java.util.List;
import java.util.ListIterator;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.gmf.runtime.diagram.ui.figures.BorderedNodeFigure;
import org.eclipse.sirius.diagram.ui.tools.api.figure.locator.DBorderItemLocator;
import org.eclipse.sirius.ext.base.Option;
import org.eclipse.sirius.ext.base.Options;
import com.google.common.base.Predicates;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
/**
* A specific bordered item locator for feedback when moving a border node.
*
* @author fbarbin
*/
public class FeedbackDBorderItemLocator extends DBorderItemLocator {
/**
* Default constructor.
*
* @param parentFigure
* the feedback target figure.
*/
public FeedbackDBorderItemLocator(IFigure parentFigure) {
super(parentFigure);
}
@Override
protected List<IFigure> getBrotherFigures(IFigure targetBorderItem) {
IFigure parentFigure = getParentFigure();
if (parentFigure instanceof BorderedNodeFigure) {
parentFigure = ((BorderedNodeFigure) parentFigure).getBorderItemContainer();
}
@SuppressWarnings("unchecked")
Iterable<IFigure> brotherFigures = Iterables.filter(parentFigure.getChildren(), Predicates.and(Predicates.instanceOf(IFigure.class), Predicates.not(Predicates.equalTo(targetBorderItem))));
return Lists.newArrayList(brotherFigures);
}
/**
* Determine if the the given rectangle conflicts with the position of
* <code>figuresToCheck</code>.
*
* @param recommendedRect
* The desired bounds
* @param figuresToCheck
* Other figures to check if they conflict the
* <code>recommendedRect</code>
* @param portsFiguresToIgnore
* the ports figures to ignore, even if they are in
* <code>figuresToCheck</code>
* @return the optional Rectangle of the border item that is in conflict
* with the given bordered node (none option if no conflict)
*/
protected Option<Rectangle> conflicts(final Rectangle recommendedRect, List<IFigure> figuresToCheck, final Collection<IFigure> portsFiguresToIgnore) {
final ListIterator<IFigure> iterator = figuresToCheck.listIterator();
while (iterator.hasNext()) {
final IFigure borderItem = iterator.next();
if (!portsFiguresToIgnore.contains(borderItem)) {
if (borderItem.isVisible()) {
final Rectangle rect = new Rectangle(borderItem.getBounds());
if (!(portsFiguresToIgnore.contains(borderItem)) && rect.intersects(recommendedRect)) {
return Options.newSome(rect);
}
}
}
}
return Options.newNone();
}
}
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