/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * particular file as subject to the "Classpath" exception as provided

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 */

package sun.java2d.xr;

import java.awt.Color;

import java.awt.Transparency;

import sun.java2d.SurfaceData;

import sun.java2d.SurfaceDataProxy;

import sun.java2d.loops.CompositeType;

/**

 * The proxy class contains the logic if to replace a SurfaceData with a

 * cached X11 Pixmap and the code to create the accelerated surfaces.

 */

public class XRSurfaceDataProxy extends SurfaceDataProxy implements Transparency {

    public static SurfaceDataProxy createProxy(SurfaceData srcData,

            XRGraphicsConfig dstConfig) {

        /*Don't cache already native surfaces*/

        if (srcData instanceof XRSurfaceData) {

            return UNCACHED;

        }

        return new XRSurfaceDataProxy(dstConfig, srcData.getTransparency());

    }

    XRGraphicsConfig xrgc;

    int transparency;

    public XRSurfaceDataProxy(XRGraphicsConfig x11gc) {

        this.xrgc = x11gc;

    }

    @Override

    public SurfaceData validateSurfaceData(SurfaceData srcData,

            SurfaceData cachedData, int w, int h) {

        if (cachedData == null) {

            cachedData = XRSurfaceData.createData(xrgc, w, h, xrgc

                    .getColorModel(), null, 0, getTransparency());

        }

        return cachedData;

    }

    public XRSurfaceDataProxy(XRGraphicsConfig x11gc, int transparency) {

        this.xrgc = x11gc;

        this.transparency = transparency;

    }

    //TODO: Is that really ok?

    @Override

    public boolean isSupportedOperation(SurfaceData srcData, int txtype,

            CompositeType comp, Color bgColor) {

        return (bgColor == null || transparency == Transparency.TRANSLUCENT);

    }

    public int getTransparency() {

        return transparency;

    }

}