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/*****************************************************************************
* Copyright (c) 2010 CEA LIST.
*
*
* 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:
* Tatiana Fesenko (CEA LIST) - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.diagram.clazz.custom.locator;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.PositionConstants;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.gmf.runtime.diagram.ui.figures.BorderItemLocator;
import org.eclipse.papyrus.diagram.common.figure.node.PackageNodePlateFigure;
/**
* The Class ContainmentCircleOnPackageLocator.
*/
public class ContainmentCircleOnPackageLocator extends BorderItemLocator {
/** The Constant DEFAULT_BORDER_ITEM_OFFSET. */
private static final Dimension DEFAULT_BORDER_ITEM_OFFSET = new Dimension(1, 1);
/** The Constant DEFAULT_SIZE. */
private static final Dimension DEFAULT_SIZE = new Dimension(20, 20);
private Dimension originalBorderItemOffset = DEFAULT_BORDER_ITEM_OFFSET;
/**
* Instantiates a new containment circle on package locator.
*
* @param parentFigure
* the parent figure
*/
public ContainmentCircleOnPackageLocator(IFigure parentFigure) {
super(parentFigure);
}
/**
* Instantiates a new containment circle on package locator.
*
* @param borderItem
* the border item
* @param parentFigure
* the parent figure
* @param constraint
* the constraint
*/
public ContainmentCircleOnPackageLocator(IFigure borderItem, IFigure parentFigure, Rectangle constraint) {
super(borderItem, parentFigure, constraint);
}
/**
* Instantiates a new containment circle on package locator.
*
* @param parentFigure
* the parent figure
* @param preferredSide
* the preferred side
*/
public ContainmentCircleOnPackageLocator(IFigure parentFigure, int preferredSide) {
super(parentFigure, preferredSide);
setConstraint(new Rectangle(new Point(0, 0), DEFAULT_SIZE));
}
/**
* @see org.eclipse.gmf.runtime.diagram.ui.figures.BorderItemLocator#setConstraint(org.eclipse.draw2d.geometry.Rectangle)
*
* @param theConstraint
*/
@Override
public void setConstraint(Rectangle theConstraint) {
super.setConstraint(new Rectangle(theConstraint.getTopLeft(), DEFAULT_SIZE));
}
/**
* @see org.eclipse.gmf.runtime.diagram.ui.figures.BorderItemLocator#locateOnParent(org.eclipse.draw2d.geometry.Point, int,
* org.eclipse.draw2d.IFigure)
*
* @param suggestedLocation
* @param suggestedSide
* @param borderItem
* @return
*/
@Override
protected Point locateOnParent(Point suggestedLocation, int suggestedSide, IFigure borderItem) {
PackageNodePlateFigure parent = (PackageNodePlateFigure)getParentFigure();
Rectangle headerBounds = parent.getPackageFigure().getHeader();
if(suggestedSide == PositionConstants.NORTH && !isOnHeader(suggestedLocation, headerBounds)) {
setBorderItemOffset(new Dimension(originalBorderItemOffset.width, headerBounds.height));
} else {
setBorderItemOffset(originalBorderItemOffset);
}
Point result = super.locateOnParent(suggestedLocation, suggestedSide, borderItem);
setBorderItemOffset(originalBorderItemOffset);
return result;
}
/**
* Checks if is on header.
*
* @param p
* the p
* @param headerBounds
* the header bounds
* @return true, if is on header
*/
private boolean isOnHeader(Point p, Rectangle headerBounds) {
return p.x < headerBounds.getTopRight().x;
}
}
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