/* 
 * Copyright 2011 Vaadin Ltd.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.vaadin.ui;

import com.vaadin.shared.ui.AbstractLayoutState;
import com.vaadin.ui.Layout.MarginHandler;

/**
 * An abstract class that defines default implementation for the {@link Layout}
 * interface.
 * 
 * @author Vaadin Ltd.
 * @since 5.0
 */
@SuppressWarnings("serial")
public abstract class AbstractLayout extends AbstractComponentContainer
        implements Layout, MarginHandler {

    protected MarginInfo margins = new MarginInfo(false);

    @Override
    public AbstractLayoutState getState() {
        return (AbstractLayoutState) super.getState();
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.vaadin.ui.Layout#setMargin(boolean)
     */
    @Override
    public void setMargin(boolean enabled) {
        margins.setMargins(enabled);
        getState().setMarginsBitmask(margins.getBitMask());
        requestRepaint();
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.vaadin.ui.Layout.MarginHandler#getMargin()
     */
    @Override
    public MarginInfo getMargin() {
        return margins;
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.vaadin.ui.Layout.MarginHandler#setMargin(MarginInfo)
     */
    @Override
    public void setMargin(MarginInfo marginInfo) {
        margins.setMargins(marginInfo);
        getState().setMarginsBitmask(margins.getBitMask());
        requestRepaint();
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.vaadin.ui.Layout#setMargin(boolean, boolean, boolean, boolean)
     */
    @Override
    public void setMargin(boolean topEnabled, boolean rightEnabled,
            boolean bottomEnabled, boolean leftEnabled) {
        margins.setMargins(topEnabled, rightEnabled, bottomEnabled, leftEnabled);
        getState().setMarginsBitmask(margins.getBitMask());
        requestRepaint();
    }

}