1 /*
   2  * Copyright (c) 1997, 2002, 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 /*
  27  * @author Charlton Innovations, Inc.
  28  */
  29 
  30 package sun.java2d.loops;
  31 
  32 import sun.java2d.loops.GraphicsPrimitive;
  33 import sun.java2d.SunGraphics2D;
  34 import sun.java2d.SurfaceData;
  35 
  36 /**
  37  *   DrawPolygons
  38  *   1) draw single-width line polygons onto destination surface
  39  *   2) must accept output area [x, y, dx, dy]
  40  *      from within the surface description data for clip rect
  41  */
  42 public class DrawPolygons extends GraphicsPrimitive
  43 {
  44     public final static String methodSignature = "DrawPolygons(...)".toString();
  45 
  46     public final static int primTypeID = makePrimTypeID();
  47 
  48     public static DrawPolygons locate(SurfaceType srctype,
  49                                       CompositeType comptype,
  50                                       SurfaceType dsttype)
  51     {
  52         return (DrawPolygons)
  53             GraphicsPrimitiveMgr.locate(primTypeID,
  54                                         srctype, comptype, dsttype);
  55     }
  56 
  57     protected DrawPolygons(SurfaceType srctype,
  58                            CompositeType comptype,
  59                            SurfaceType dsttype)
  60     {
  61         super(methodSignature, primTypeID, srctype, comptype, dsttype);
  62     }
  63 
  64     public DrawPolygons(long pNativePrim,
  65                         SurfaceType srctype,
  66                         CompositeType comptype,
  67                         SurfaceType dsttype)
  68     {
  69         super(pNativePrim, methodSignature, primTypeID, srctype, comptype, dsttype);
  70     }
  71 
  72     /**
  73      *   All DrawPolygon implementors must have this invoker method
  74      */
  75     public native void DrawPolygons(SunGraphics2D sg2d, SurfaceData sData,
  76                                     int xPoints[], int yPoints[],
  77                                     int nPoints[], int numPolys,
  78                                     int transX, int transY,
  79                                     boolean close);
  80 
  81     public GraphicsPrimitive makePrimitive(SurfaceType srctype,
  82                                            CompositeType comptype,
  83                                            SurfaceType dsttype)
  84     {
  85         // REMIND: use FillSpans or converter object?
  86         throw new InternalError("DrawPolygons not implemented for "+
  87                                 srctype+" with "+comptype);
  88     }
  89 
  90     public GraphicsPrimitive traceWrap() {
  91         return new TraceDrawPolygons(this);
  92     }
  93 
  94     private static class TraceDrawPolygons extends DrawPolygons {
  95         DrawPolygons target;
  96 
  97         public TraceDrawPolygons(DrawPolygons target) {
  98             super(target.getSourceType(),
  99                   target.getCompositeType(),
 100                   target.getDestType());
 101             this.target = target;
 102         }
 103 
 104         public GraphicsPrimitive traceWrap() {
 105             return this;
 106         }
 107 
 108         public void DrawPolygons(SunGraphics2D sg2d, SurfaceData sData,
 109                                  int xPoints[], int yPoints[],
 110                                  int nPoints[], int numPolys,
 111                                  int transX, int transY,
 112                                  boolean close)
 113         {
 114             tracePrimitive(target);
 115             target.DrawPolygons(sg2d, sData,
 116                                 xPoints, yPoints, nPoints, numPolys,
 117                                 transX, transY, close);
 118         }
 119     }
 120 }