105 lines
3.8 KiB
Java
105 lines
3.8 KiB
Java
/*
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* Copyright (c) 2000, 2024, 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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/*
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* @test
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* @bug 4309915
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* @library /java/awt/regtesthelpers
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* @build PassFailJFrame
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* @summary Check that Antialiased text drawn on a BYTE_GRAY image
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* resolves the color correctly
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* @run main/manual GrayAATextTest
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*/
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import java.awt.Color;
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import java.awt.Dimension;
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import java.awt.Font;
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import java.awt.Frame;
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import java.awt.Graphics;
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import java.awt.Graphics2D;
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import java.awt.Panel;
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import java.awt.RenderingHints;
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import java.awt.image.BufferedImage;
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public class GrayAATextTest extends Panel {
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public static final int WIDTH = 600;
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public static final int HEIGHT = 200;
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private static final String INSTRUCTIONS = """
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All of the strings in a given column should be drawn
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in the same color. If the bug is present, then the
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Antialiased strings will all be of a fixed color that
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is not the same as the other strings in their column.""";
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public static void main(String[] args) throws Exception {
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PassFailJFrame.builder()
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.title("GrayAATextTest Instructions")
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.instructions(INSTRUCTIONS)
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.rows((int)INSTRUCTIONS.lines().count() + 2)
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.columns(35)
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.testUI(GrayAATextTest::createTestUI)
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.build()
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.awaitAndCheck();
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}
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public void paint(Graphics g) {
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BufferedImage bi = new BufferedImage(WIDTH, HEIGHT,
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BufferedImage.TYPE_BYTE_GRAY);
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Graphics2D g2d = bi.createGraphics();
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g2d.setFont(new Font("Helvetica", Font.PLAIN, 24));
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g2d.setColor(Color.white);
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g2d.fillRect(0, 0, WIDTH / 2, HEIGHT);
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drawText(g2d, Color.black, "Black", 25);
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drawText(g2d, Color.lightGray, "Light Gray", 175);
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g2d.setColor(Color.black);
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g2d.fillRect(WIDTH / 2, 0, WIDTH / 2, HEIGHT);
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drawText(g2d, Color.white, "White", 325);
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drawText(g2d, Color.lightGray, "Light Gray", 475);
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g2d.dispose();
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g.drawImage(bi, 0, 0, null);
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}
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public void drawText(Graphics2D g2d, Color c, String colorname, int x) {
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g2d.setColor(c);
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g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
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RenderingHints.VALUE_ANTIALIAS_OFF);
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g2d.drawString(colorname, x, 50);
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g2d.drawString("Aliased", x, 100);
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g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
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RenderingHints.VALUE_ANTIALIAS_ON);
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g2d.drawString("Antialiased", x, 150);
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}
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public Dimension getPreferredSize() {
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return new Dimension(WIDTH, HEIGHT);
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}
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private static Frame createTestUI() {
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Frame f = new Frame("GrayAATextTest Frame");
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f.add(new GrayAATextTest());
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f.setSize(WIDTH, HEIGHT);
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return f;
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}
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}
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