/*

 * Copyright 2003-2008 Sun Microsystems, Inc.  All Rights Reserved.

 * 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

 * published by the Free Software Foundation.  Sun designates this

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

 * by Sun in the LICENSE file that accompanied this code.

 *

 * 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.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

package sun.awt.X11;

import sun.awt.X11CustomCursor;

import java.awt.*;

/**

 * A class to encapsulate a custom image-based cursor.

 *

 * @see Component#setCursor

 * @author      Thomas Ball

 * @author      Bino George

 */

public class XCustomCursor extends X11CustomCursor {

    public XCustomCursor(Image cursor, Point hotSpot, String name)

      throws IndexOutOfBoundsException {

        super(cursor, hotSpot, name);

    }

    /**

     * Returns the supported cursor size

     */

    static Dimension getBestCursorSize(int preferredWidth, int preferredHeight) {

        // Fix for bug 4212593 The Toolkit.createCustomCursor does not

        //                     check absence of the image of cursor

        // We use XQueryBestCursor which accepts unsigned ints to obtain

        // the largest cursor size that could be dislpayed

        //Dimension d = new Dimension(Math.abs(preferredWidth), Math.abs(preferredHeight));

        Dimension d;

        XToolkit.awtLock();

        try {

            long display = XToolkit.getDisplay();

            long root_window = XlibWrapper.RootWindow(display,

                    XlibWrapper.DefaultScreen(display));

            XlibWrapper.XQueryBestCursor(display,root_window, Math.abs(preferredWidth),Math.abs(preferredHeight),XlibWrapper.larg1,XlibWrapper.larg2);

            d = new Dimension(XlibWrapper.unsafe.getInt(XlibWrapper.larg1),XlibWrapper.unsafe.getInt(XlibWrapper.larg2));

        }

        finally {

            XToolkit.awtUnlock();

        }

        return d;

    }

    protected void createCursor(byte[] xorMask, byte[] andMask,

                                int width, int height,

                                int fcolor, int bcolor,

                                int xHotSpot, int yHotSpot)

    {

        XToolkit.awtLock();

        try {

            long display = XToolkit.getDisplay();

            long root_window = XlibWrapper.RootWindow(display,

                    XlibWrapper.DefaultScreen(display));

            long colormap = XToolkit.getDefaultXColormap();

            XColor fore_color = new XColor();

            fore_color.set_flags((byte) (XConstants.DoRed | XConstants.DoGreen | XConstants.DoBlue));

            fore_color.set_red((short)(((fcolor >> 16) & 0x000000ff) << 8));

            fore_color.set_green((short) (((fcolor >> 8) & 0x000000ff) << 8));

            fore_color.set_blue((short)(((fcolor >> 0) & 0x000000ff) << 8));

            XlibWrapper.XAllocColor(display,colormap,fore_color.pData);

            XColor back_color = new XColor();

            back_color.set_flags((byte) (XConstants.DoRed | XConstants.DoGreen | XConstants.DoBlue));

            back_color.set_red((short) (((bcolor >> 16) & 0x000000ff) << 8));

            back_color.set_green((short) (((bcolor >> 8) & 0x000000ff) << 8));

            back_color.set_blue((short) (((bcolor >> 0) & 0x000000ff) << 8));

            XlibWrapper.XAllocColor(display,colormap,back_color.pData);

            long nativeXorMask = Native.toData(xorMask);

            long source = XlibWrapper.XCreateBitmapFromData(display,root_window,nativeXorMask,width,height);

            long nativeAndMask = Native.toData(andMask);

            long mask =  XlibWrapper.XCreateBitmapFromData(display,root_window,nativeAndMask,width,height);

            long cursor = XlibWrapper.XCreatePixmapCursor(display,source,mask,fore_color.pData,back_color.pData,xHotSpot,yHotSpot);

            XlibWrapper.unsafe.freeMemory(nativeXorMask);

            XlibWrapper.unsafe.freeMemory(nativeAndMask);

            XlibWrapper.XFreePixmap(display,source);

            XlibWrapper.XFreePixmap(display,mask);

            back_color.dispose();

            fore_color.dispose();

            XGlobalCursorManager.setPData(this,cursor);

        }

        finally {

            XToolkit.awtUnlock();

        }

    }

}