jdk/src/java.desktop/share/classes/sun/java2d/pipe/PixelToShapeConverter.java
author lbourges
Mon, 23 Nov 2015 15:02:19 -0800
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parent 25859 3317bb8137f4
permissions -rw-r--r--
8143849: Integrate Marlin renderer per JEP 265 Reviewed-by: flar, prr
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/*
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 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package sun.java2d.pipe;
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import java.awt.Rectangle;
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import java.awt.Shape;
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import java.awt.geom.Arc2D;
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import java.awt.geom.Ellipse2D;
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import java.awt.geom.Line2D;
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import java.awt.geom.RoundRectangle2D;
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import java.awt.geom.GeneralPath;
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import sun.java2d.SunGraphics2D;
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/**
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 * This class converts calls to the basic pixel rendering methods
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 * into calls to a generic Shape rendering pipeline.
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 */
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public class PixelToShapeConverter
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    implements PixelDrawPipe, PixelFillPipe
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{
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    ShapeDrawPipe outpipe;
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    public PixelToShapeConverter(ShapeDrawPipe pipe) {
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        outpipe = pipe;
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    }
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    public void drawLine(SunGraphics2D sg,
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                         int x1, int y1, int x2, int y2) {
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        outpipe.draw(sg, new Line2D.Float(x1, y1, x2, y2));
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    }
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    public void drawRect(SunGraphics2D sg,
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                         int x, int y, int w, int h) {
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        outpipe.draw(sg, new Rectangle(x, y, w, h));
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    }
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    public void fillRect(SunGraphics2D sg,
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                         int x, int y, int w, int h) {
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        outpipe.fill(sg, new Rectangle(x, y, w, h));
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    }
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    public void drawRoundRect(SunGraphics2D sg,
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                              int x, int y, int w, int h,
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                              int aW, int aH) {
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        outpipe.draw(sg, new RoundRectangle2D.Float(x, y, w, h, aW, aH));
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    }
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    public void fillRoundRect(SunGraphics2D sg,
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                              int x, int y, int w, int h,
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                              int aW, int aH) {
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        outpipe.fill(sg, new RoundRectangle2D.Float(x, y, w, h, aW, aH));
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    }
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    public void drawOval(SunGraphics2D sg,
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                         int x, int y, int w, int h) {
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        outpipe.draw(sg, new Ellipse2D.Float(x, y, w, h));
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    }
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    public void fillOval(SunGraphics2D sg,
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                         int x, int y, int w, int h) {
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        outpipe.fill(sg, new Ellipse2D.Float(x, y, w, h));
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    }
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    public void drawArc(SunGraphics2D sg,
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                        int x, int y, int w, int h,
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                        int start, int extent) {
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        outpipe.draw(sg, new Arc2D.Float(x, y, w, h,
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                                         start, extent, Arc2D.OPEN));
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    }
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    public void fillArc(SunGraphics2D sg,
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                        int x, int y, int w, int h,
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                        int start, int extent) {
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        outpipe.fill(sg, new Arc2D.Float(x, y, w, h,
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                                         start, extent, Arc2D.PIE));
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    }
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    private Shape makePoly(int xPoints[], int yPoints[],
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                           int nPoints, boolean close) {
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        GeneralPath gp = new GeneralPath(GeneralPath.WIND_EVEN_ODD);
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        if (nPoints > 0) {
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            gp.moveTo(xPoints[0], yPoints[0]);
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            for (int i = 1; i < nPoints; i++) {
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                gp.lineTo(xPoints[i], yPoints[i]);
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            }
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            if (close) {
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                gp.closePath();
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            }
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        }
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        return gp;
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    }
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    public void drawPolyline(SunGraphics2D sg,
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                             int xPoints[], int yPoints[],
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                             int nPoints) {
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        outpipe.draw(sg, makePoly(xPoints, yPoints, nPoints, false));
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    }
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    public void drawPolygon(SunGraphics2D sg,
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                            int xPoints[], int yPoints[],
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                            int nPoints) {
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        outpipe.draw(sg, makePoly(xPoints, yPoints, nPoints, true));
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    }
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    public void fillPolygon(SunGraphics2D sg,
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                            int xPoints[], int yPoints[],
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                            int nPoints) {
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        outpipe.fill(sg, makePoly(xPoints, yPoints, nPoints, true));
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    }
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}