oyoahaalphabackground.java

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/* ====================================================================
 * Copyright (c) 2001-2003 OYOAHA. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. The names "OYOAHA" must not be used to endorse or promote products 
 *    derived from this software without prior written permission. 
 *    For written permission, please contact [e-mail].
 *
 * 3. Products derived from this software may not be called "OYOAHA",
 *    nor may "OYOAHA" appear in their name, without prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 OYOAHA OR ITS CONTRIBUTORS 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 com.oyoaha.swing.plaf.oyoaha.background;

import java.awt.*;
import javax.swing.plaf.*;

import com.oyoaha.swing.plaf.oyoaha.*;

public class OyoahaAlphaBackground implements OyoahaBackgroundObject, OyoahaFlash, UIResource
{
    protected OyoahaBackgroundObject oyoahaBackgroundObject;
    protected float alpha;

    public OyoahaAlphaBackground(OyoahaBackgroundObject oyoahaBackgroundObject, Float alpha)
    {
        this.oyoahaBackgroundObject = oyoahaBackgroundObject;
        this.alpha = alpha.floatValue();
    }

    public void paintBackground(Graphics g, Component c, int x, int y, int width, int height, int state)
    {
        OyoahaUtilities.setAlphaChannel(g, c, alpha);
        oyoahaBackgroundObject.paintBackground(g, c, x, y, width, height, state);
        OyoahaUtilities.setAlphaChannel(g, c, 1.0f);
    }

    public boolean isOpaque()
    {
        if(alpha<1.0f)
        return false;

        return oyoahaBackgroundObject.isOpaque();
    }

    public void update()
    {
        if(oyoahaBackgroundObject instanceof OyoahaFlash)
        ((OyoahaFlash)oyoahaBackgroundObject).update();
    }

    public void reset()
    {
        if(oyoahaBackgroundObject instanceof OyoahaFlash)
        ((OyoahaFlash)oyoahaBackgroundObject).reset();
    }
}