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/*****************************************************************************
* Copyright (c) 2009 Atos Origin.
*
*
* 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:
* Allanic Alexia (Atos Origin) alexia.allanic@atosorigin.com - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.layout.algorithms.horizontalsymmetryalgorithm;
/**
* The Class HorizontalSymmetryLayoutAlgorithm.
*/
public class HorizontalSymmetryLayoutAlgorithm extends AbstractLayoutAlgorithm {
/**
* Instantiates a new horizontal symmetry layout algorithm.
*
* @param styles
* the styles
*/
public HorizontalSymmetryLayoutAlgorithm(int styles) {
super(styles);
}
/**
* Instantiates a new horizontal symmetry layout algorithm.
*/
public HorizontalSymmetryLayoutAlgorithm() {
this(LayoutStyles.NONE);
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.zest.layouts.algorithms.AbstractLayoutAlgorithm#applyLayoutInternal(org.eclipse
* .zest.layouts.dataStructures.InternalNode[],
* org.eclipse.zest.layouts.dataStructures.InternalRelationship[], double, double, double,
* double)
*/
@Override
protected void applyLayoutInternal(InternalNode[] entitiesToLayout, InternalRelationship[] relationshipsToConsider,
double boundsX, double boundsY, double boundsWidth, double boundsHeight) {
}
/*
* (non-Javadoc)
*
* @see org.eclipse.zest.layouts.algorithms.AbstractLayoutAlgorithm#getCurrentLayoutStep()
*/
@Override
protected int getCurrentLayoutStep() {
return 0;
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.zest.layouts.algorithms.AbstractLayoutAlgorithm#getTotalNumberOfLayoutSteps()
*/
@Override
protected int getTotalNumberOfLayoutSteps() {
return 0;
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.zest.layouts.algorithms.AbstractLayoutAlgorithm#isValidConfiguration(boolean,
* boolean)
*/
@Override
protected boolean isValidConfiguration(boolean asynchronous, boolean continuous) {
if (asynchronous && continuous) {
return false;
} else if (asynchronous && !continuous) {
return true;
} else if (!asynchronous && continuous) {
return false;
} else if (!asynchronous && !continuous) {
return true;
}
return false;
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.zest.layouts.algorithms.AbstractLayoutAlgorithm#postLayoutAlgorithm(org.eclipse
* .zest.layouts.dataStructures.InternalNode[],
* org.eclipse.zest.layouts.dataStructures.InternalRelationship[])
*/
@Override
protected void postLayoutAlgorithm(InternalNode[] entitiesToLayout, InternalRelationship[] relationshipsToConsider) {
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.zest.layouts.algorithms.AbstractLayoutAlgorithm#preLayoutAlgorithm(org.eclipse
* .zest.layouts.dataStructures.InternalNode[],
* org.eclipse.zest.layouts.dataStructures.InternalRelationship[], double, double, double,
* double)
*/
@Override
protected void preLayoutAlgorithm(InternalNode[] entitiesToLayout, InternalRelationship[] relationshipsToConsider,
double x, double y, double width, double height) {
double middle = calculateMiddleArea(y, height);
for (InternalNode node : entitiesToLayout) {
// node.setLocationInLayout(node.getXInLayout(),middle+(middle - node.getYInLayout()));
node.setLocation(node.getInternalX(), (middle + (middle - node.getInternalY())) - node.getHeightInLayout());
// node.setInternalLocation(node.getXInLayout(), middle+(middle - node.getYInLayout()));
}
}
/**
* Calculate middle area.
*
* @param y
* the y
* @param height
* the height
*
* @return the double
*/
private double calculateMiddleArea(double y, double height) {
return y + ((height - y) / 2);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.zest.layouts.algorithms.AbstractLayoutAlgorithm#setLayoutArea(double,
* double, double, double)
*/
@Override
public void setLayoutArea(double x, double y, double width, double height) {
}
}
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