plugins/org.eclipse.graphiti.ui/src/org/eclipse/graphiti/ui/internal/contextbuttons/IContextButtonManager.java

/*******************************************************************************
 * <copyright>
 *
 * Copyright (c) 2005, 2011 SAP AG.
 * 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:
 *    SAP AG - initial API, implementation and documentation
 *    Felix Velasco (mwenz) - Bug 323351 - Enable to suppress/reactivate the speed buttons
 *
 * </copyright>
 *
 *******************************************************************************/
package org.eclipse.graphiti.ui.internal.contextbuttons;

import org.eclipse.gef.GraphicalEditPart;

/**
 * An interface of a context button manager, which is responsible to show/hide a
 * context buttons for an edit-part.
 * 
 * @noimplement This interface is not intended to be implemented by clients.
 * @noextend This class is not intended to be subclassed by clients.
 */
public interface IContextButtonManager {

	/**
	 * Registers the given graphical edit-part for the context button manager.
	 * As a result the context button manager will show the context buttons when
	 * the mouse is over the given graphical edit-part. Typically in this method
	 * the context button manager will register as mouse-listener on the
	 * edit-part.
	 * 
	 * @param graphicalEditPart
	 *            The graphical edit-part to register for the context button
	 *            manager.
	 */
	void register(GraphicalEditPart graphicalEditPart);

	/**
	 * Deregisters the given graphical edit-part from the context button
	 * manager. Also see {@link #register(GraphicalEditPart)}.
	 * 
	 * @param graphicalEditPart
	 *            The graphical edit-part to deregister from the context button
	 *            manager.
	 */
	void deRegister(GraphicalEditPart graphicalEditPart);

	/**
	 * Hides the context buttons (if they are currently showing). This method
	 * can be called from outside the context button manager to hide the context
	 * buttons, e.g. when the mouse leaves the editor, when the shape is
	 * moved/resized, ...
	 */
	void hideContextButtonsInstantly();

	/**
	 * Sets the general availability of the context button pad. This method
	 * enables the context button pad control from outside the manager
	 * 
	 */
	void setContextButtonShowing(boolean enable);
}