1 /*
   2  * Copyright (c) 2010, Oracle and/or its affiliates. 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.java2d.xr;
  27 
  28 /**
  29  * Represents a single tile, used to store the rectangles covering the area
  30  * of the mask where the tile is located.
  31  *
  32  * @author Clemens Eisserer
  33  */
  34 public class MaskTile {
  35     GrowableRectArray rects;
  36     DirtyRegion dirtyArea;
  37 
  38     public MaskTile()
  39     {
  40         rects = new GrowableRectArray(128);
  41         dirtyArea = new DirtyRegion();
  42     }
  43 




























































































  44     public void calculateDirtyAreas()
  45     {
  46         for (int i=0; i < rects.getSize(); i++) {
  47             int x = rects.getX(i);
  48             int y = rects.getY(i);
  49             dirtyArea.growDirtyRegion(x, y,
  50                                       x + rects.getWidth(i),
  51                                       y + rects.getHeight(i));
  52         }
  53     }
  54 
  55     public void reset() {
  56         rects.clear();
  57         dirtyArea.clear();
  58     }
  59 
  60     public void translate(int x, int y) {
  61         if (rects.getSize() > 0) {
  62             dirtyArea.translate(x, y);
  63         }
  64         rects.translateRects(x, y);
  65     }
  66 
  67     public GrowableRectArray getRects() {
  68         return rects;
  69     }
  70 
  71     public DirtyRegion getDirtyArea() {
  72         return dirtyArea;
  73     }
  74 }
--- EOF ---