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89 lines
2.9 KiB
89 lines
2.9 KiB
1 year ago
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/*
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* Copyright (c) 2008, 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.
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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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/* @test
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* @summary verify outline and stroking of underline match.
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* @bug 6751616
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*/
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import java.awt.*;
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import java.awt.font.*;
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import java.awt.geom.*;
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import java.awt.image.*;
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import java.util.*;
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public class UnderlinePositionTest {
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public static void main(String[] args) {
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BufferedImage bi =
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new BufferedImage(600, 150, BufferedImage.TYPE_INT_RGB);
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Graphics2D g2d = bi.createGraphics();
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g2d.setColor(Color.white);
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g2d.fillRect(0, 0, 600, 150);
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float x = 10;
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float y = 90;
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Map map = new HashMap();
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map.put(TextAttribute.UNDERLINE, TextAttribute.UNDERLINE_ON);
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map.put(TextAttribute.SIZE, new Float(80));
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FontRenderContext frc = g2d.getFontRenderContext();
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// Use all spaces for the text so we know we are dealing
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// only with pixels from the underline.
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String text = " ";
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TextLayout tl = new TextLayout(text, map, frc);
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Shape outline = tl.getOutline(null);
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Rectangle2D bounds = outline.getBounds();
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g2d.translate(x, y);
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g2d.setColor(Color.RED);
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tl.draw(g2d, 0, 0);
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/* By getting the outline, then its bounds, then filling
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* according to the same pixelisation rules, this ought to
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* match the position of the original underline. If any
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* red pixels are left, then the test will fail.
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*/
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g2d.setColor(Color.BLUE);
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g2d.fill(bounds);
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g2d.dispose();
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checkBI(bi, Color.RED);
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}
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static void checkBI(BufferedImage bi, Color badColor) {
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int badrgb = badColor.getRGB();
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int w = bi.getWidth(null);
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int h = bi.getHeight(null);
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for (int x=0; x<w; x++) {
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for (int y=0; y<h; y++) {
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int col = bi.getRGB(x, y);
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if (col == badrgb) {
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throw new RuntimeException("Got " + col);
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}
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}
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}
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}
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}
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