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/*
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*
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* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of Oracle nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package java2d.demos.Paths;
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import static java.awt.Color.BLACK;
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import static java.awt.Color.LIGHT_GRAY;
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import static java.awt.Color.WHITE;
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import java.awt.Graphics2D;
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import java.awt.geom.GeneralPath;
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import java.awt.geom.Path2D;
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import java2d.Surface;
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/**
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* Rectangles filled to illustrate the GenerPath winding rule, determining
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* the interior of a path.
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*/
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@SuppressWarnings("serial")
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public class WindingRule extends Surface {
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public WindingRule() {
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setBackground(WHITE);
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}
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@Override
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public void render(int w, int h, Graphics2D g2) {
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g2.translate(w * .2, h * .2);
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GeneralPath p = new GeneralPath(Path2D.WIND_NON_ZERO);
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p.moveTo(0.0f, 0.0f);
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p.lineTo(w * .5f, 0.0f);
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p.lineTo(w * .5f, h * .2f);
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p.lineTo(0.0f, h * .2f);
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p.closePath();
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p.moveTo(w * .05f, h * .05f);
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p.lineTo(w * .55f, h * .05f);
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p.lineTo(w * .55f, h * .25f);
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p.lineTo(w * .05f, h * .25f);
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p.closePath();
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g2.setColor(LIGHT_GRAY);
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g2.fill(p);
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g2.setColor(BLACK);
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g2.draw(p);
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g2.drawString("NON_ZERO rule", 0, -5);
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g2.translate(0.0f, h * .45);
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p.setWindingRule(Path2D.WIND_EVEN_ODD);
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g2.setColor(LIGHT_GRAY);
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g2.fill(p);
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g2.setColor(BLACK);
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g2.draw(p);
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g2.drawString("EVEN_ODD rule", 0, -5);
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}
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public static void main(String s[]) {
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createDemoFrame(new WindingRule());
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}
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}
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