/*
 * Copyright (c) 2011, Nikolaus Moll
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * * Neither the name of the jo-widgets.org nor the
 *   names of its contributors may be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL jo-widgets.org BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */

package org.jowidgets.spi.impl.swt.common.widgets.base;

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Event;

final class SashOrientationUtil {
    static final ISashOrientationUtil HORIZONTAL = new HorizontalSashCalculator();
    static final ISashOrientationUtil VERTICAL = new VerticalSashCalculator();

    private SashOrientationUtil() {}

    private static final class HorizontalSashCalculator implements ISashOrientationUtil {

        @Override
        public int getPosition(final Rectangle bounds) {
            return bounds.x;
        }

        @Override
        public int getSize(final Rectangle bounds) {
            return bounds.width;
        }

        @Override
        public int getSize(final Point size) {
            return size.x;
        }

        @Override
        public Rectangle createBounds(final Rectangle parentArea, final int position, final int size) {
            return new Rectangle(position, parentArea.y, size, parentArea.height);
        }

        @Override
        public int getEventPos(final Event event) {
            return event.x;
        }

        @Override
        public int getOrientation() {
            return SWT.HORIZONTAL;
        }
    }

    private static final class VerticalSashCalculator implements ISashOrientationUtil {

        @Override
        public int getPosition(final Rectangle bounds) {
            return bounds.y;
        }

        @Override
        public int getSize(final Rectangle bounds) {
            return bounds.height;
        }

        @Override
        public int getSize(final Point size) {
            return size.y;
        }

        @Override
        public Rectangle createBounds(final Rectangle parentArea, final int position, final int size) {
            return new Rectangle(parentArea.x, position, parentArea.width, size);
        }

        @Override
        public int getEventPos(final Event event) {
            return event.y;
        }

        @Override
        public int getOrientation() {
            return SWT.VERTICAL;
        }
    }
}