test/jdk/java/awt/FontClass/NonInvertibleTransformTextTest.java - master - githubmirror/jdk17u-dev

test/jdk/java/awt/FontClass/NonInvertibleTransformTextTest.java
74 строки3 KB
Phil Race
8242004: TextLayout throws Exception with a non-invertible transform
21 апр 2020, 01:19
21 апр 2020, 01:19def1d5a
/*
 * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * @test
 * @bug 8242004
 * @summary Font/Text APIs should handle a non-invertible transform.
 */

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.font.FontRenderContext;
import java.awt.font.GlyphVector;
import java.awt.font.TextLayout;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;

public class NonInvertibleTransformTextTest {

    public static void main(String[] args) {

        // Create a non-invertible transform
        AffineTransform at = new AffineTransform(1f, 0.0f, -15, 0.0, -1, -30);

        // Test creating a text layout
        FontRenderContext frc = new FontRenderContext(at, false, false);
        Font font = new Font(Font.DIALOG, Font.PLAIN, 12);
        TextLayout tl = new TextLayout("ABC", font, frc);
        tl.getOutline(new AffineTransform());

        // Test rendering text
        BufferedImage bi = new BufferedImage(100, 100,
                                             BufferedImage.TYPE_INT_RGB);
        Graphics2D g2d = bi.createGraphics();
        g2d.setColor(Color.white);
        g2d.fillRect(0,0,100,100);
        g2d.setColor(Color.red);
        tl.draw(g2d, 50, 50); // first the TextLayout created above

        // Now a laid out GlyphVector
        Font f = g2d.getFont();
        char[] chs = { 'A', 'B', 'C' };
        GlyphVector gv = f.layoutGlyphVector(frc, chs, 0, chs.length, 0);
        g2d.drawGlyphVector(gv, 20, 20);

        // Now under the transform, the basic text drawing calls.
        g2d.setTransform(at);
        g2d.drawString("ABC", 20, 20);
        g2d.drawChars(chs, 0, chs.length, 20, 20);
        // And TextLayout again.
        tl.draw(g2d, 50, 50);
    }
}