JDK14/Java14源码在线阅读

/*
 *
 * Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *   - Neither the name of Oracle nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package java2d.demos.Fonts;


import static java.awt.Color.BLACK;
import static java.awt.Color.BLUE;
import static java.awt.Color.GREEN;
import static java.awt.Color.MAGENTA;
import static java.awt.Color.RED;
import static java.awt.Color.WHITE;
import java.awt.BasicStroke;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.font.FontRenderContext;
import java.awt.font.TextAttribute;
import java.awt.font.TextLayout;
import java.awt.geom.AffineTransform;
import java.text.AttributedCharacterIterator;
import java.text.AttributedString;
import java2d.Surface;


/**
 * Rendering text as an outline shape.
 */
@SuppressWarnings("serial")
public class Outline extends Surface {

    public Outline() {
        setBackground(WHITE);
    }

    @Override
    public void render(int w, int h, Graphics2D g2) {

        FontRenderContext frc = g2.getFontRenderContext();
        Font f = new Font(Font.SANS_SERIF, Font.PLAIN, w / 8);
        Font f1 = new Font(Font.SANS_SERIF, Font.ITALIC, w / 8);
        String s = "AttributedString";
        AttributedString as = new AttributedString(s);
        as.addAttribute(TextAttribute.FONT, f, 0, 10);
        as.addAttribute(TextAttribute.FONT, f1, 10, s.length());
        AttributedCharacterIterator aci = as.getIterator();
        TextLayout tl = new TextLayout(aci, frc);
        float sw = (float) tl.getBounds().getWidth();
        float sh = (float) tl.getBounds().getHeight();
        Shape sha = tl.getOutline(AffineTransform.getTranslateInstance(w / 2 - sw
                / 2, h * 0.2 + sh / 2));
        g2.setColor(BLUE);
        g2.setStroke(new BasicStroke(1.5f));
        g2.draw(sha);
        g2.setColor(MAGENTA);
        g2.fill(sha);

        f = new Font(Font.SERIF, Font.BOLD, w / 6);
        tl = new TextLayout("Outline", f, frc);
        sw = (float) tl.getBounds().getWidth();
        sh = (float) tl.getBounds().getHeight();
        sha = tl.getOutline(AffineTransform.getTranslateInstance(w / 2 - sw / 2, h
                * 0.5 + sh / 2));
        g2.setColor(BLACK);
        g2.draw(sha);
        g2.setColor(RED);
        g2.fill(sha);

        f = new Font(Font.SANS_SERIF, Font.ITALIC, w / 8);
        AffineTransform fontAT = new AffineTransform();
        fontAT.shear(-0.2, 0.0);
        Font derivedFont = f.deriveFont(fontAT);

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