ArrowButton.java

/*******************************************************************************
 * Copyright (c) 2000, 2005 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.draw2d;

import org.eclipse.draw2d.geometry.Insets;

/**
 * A Button which displays a triangle pointing in a specified direction. This class is
 * used by the {@link ScrollBar} figure.
 */
public class ArrowButton
	extends Button
	implements Orientable
{

{
	createTriangle();
	setRequestFocusEnabled(false);
	setFocusTraversable(false);
}

/**
 * Constructs a default ArrowButton with the arrow pointing north.
 * 
 * @since 2.0
 */
public ArrowButton() { }

/**
 * Constructs an ArrowButton with the arrow having the direction given in the input.
 * The direction can be one of many directional constants defined in 
 * {@link PositionConstants}.
 *
 * @param direction  Direction of the arrow
 * @since 2.0
 */
public ArrowButton(int direction) {
	setDirection(direction);
}

/**
 * Contructs a triangle with a black background pointing north, and sets it as the
 * contents of the button.
 * 
 * @since 2.0
 */
protected void createTriangle() {
	Triangle tri = new Triangle();
	tri.setOutline(true);
	tri.setBackgroundColor(ColorConstants.listForeground);
	tri.setForegroundColor(ColorConstants.listForeground);
	tri.setBorder(new MarginBorder(new Insets(2)));
	setContents(tri);
}

/**
 * @see org.eclipse.draw2d.Orientable#setDirection(int)
 */
public void setDirection(int value) {
	setChildrenDirection(value);
}

/**
 * @see org.eclipse.draw2d.Orientable#setOrientation(int)
 */
public void setOrientation(int value) {
	setChildrenOrientation(value);
}

}