1 /*

     2  * Copyright 1997-1999 Sun Microsystems, Inc.  All Rights Reserved.

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

     4  *

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

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

     7  * published by the Free Software Foundation.  Sun designates this

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

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

    10  *

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

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

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

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

    15  * accompanied this code).

    16  *

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

    18  * 2 along with this work; if not, write to the Free Software Foundation,

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

    20  *

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

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

    23  * have any questions.

    24  */

    25 

    26 package sun.java2d.pipe;

    27 

    28 import java.awt.Rectangle;

    29 import java.awt.Shape;

    30 import sun.java2d.SunGraphics2D;

    31 

    32 /**

    33  * This class implements a CompositePipe that renders path alpha tiles

    34  * into a destination that supports direct alpha compositing of a solid

    35  * color, according to one of the rules in the AlphaComposite class.

    36  */

    37 public class AlphaColorPipe implements CompositePipe {

    38     public AlphaColorPipe() {

    39     }

    40 

    41     public Object startSequence(SunGraphics2D sg, Shape s, Rectangle dev,

    42                                 int[] abox) {

    43         return sg;

    44     }

    45 

    46     public boolean needTile(Object context, int x, int y, int w, int h) {

    47         return true;

    48     }

    49 

    50     public void renderPathTile(Object context,

    51                                byte[] atile, int offset, int tilesize,

    52                                int x, int y, int w, int h) {

    53         SunGraphics2D sg = (SunGraphics2D) context;

    54 

    55         sg.alphafill.MaskFill(sg, sg.getSurfaceData(), sg.composite,

    56                               x, y, w, h,

    57                               atile, offset, tilesize);

    58     }

    59 

    60     public void skipTile(Object context, int x, int y) {

    61         return;

    62     }

    63 

    64     public void endSequence(Object context) {

    65         return;

    66     }

    67 }