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/*******************************************************************************
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* Copyright (c) 2000, 2010 IBM Corporation and others.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*******************************************************************************/
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package org.eclipse.gef;
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import org.eclipse.draw2d.geometry.Point;
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/**
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* Specializes {@link EditPartViewer} adding the ability to hit-test
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* {@link Handle Handles}.
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*
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* @see org.eclipse.gef.ui.parts.GraphicalViewerImpl
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*/
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public interface GraphicalViewer extends EditPartViewer {
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/**
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* Returns the <code>Handle</code> at the specified Point. Returns
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* <code>null</code> if no handle exists at the given Point. The specified
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* point should be relative to the
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* {@link org.eclipse.swt.widgets.Scrollable#getClientArea() client area}
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* for this Viewer's <code>Control</code>.
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*
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* @param p
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* the location relative to the Control's client area
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* @return Handle <code>null</code> or a Handle
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*/
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Handle findHandleAt(Point p);
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}
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