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/*
* 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 RotatedSyntheticBoldTest
* @bug 8233006 8244113
* @summary This test verifies that rotated synthetically bolded fonts
* do not have a wandering baseline
* @run main RotatedSyntheticBoldTest
*/
/*
* Note this is designed to be run headless. The creation of the UI
* is meant to be run outside the harness as an visualisaton aid to
* debugging any failure.
*/
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.awt.RenderingHints;
import java.awt.font.FontRenderContext;
import java.awt.font.GlyphVector;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
public class RotatedSyntheticBoldTest extends JPanel {
static String TEXT = "abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLM";
static int SZ = 1000;
static Font font;
public static void main(String[] args) throws Exception {
if (args.length > 1) {
if (args[0].equals("-family")) {
font = new Font(args[1], Font.BOLD, 20);
} else if (args[0].equals("-file")) {
font = Font.createFont(Font.TRUETYPE_FONT, new File(args[1]));
} else {
font = new Font(Font.DIALOG, Font.BOLD, 20);
}
System.out.println("Using " + font);
createUI();
} else {
doTest();
}
}
static void createUI() throws Exception {
SwingUtilities.invokeAndWait(() -> {
JFrame frame = new JFrame("Synthetic Text Test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new RotatedSyntheticBoldTest());
frame.setSize(SZ, SZ);
frame.setVisible(true);
});
}
public void paint(Graphics g) {
Graphics2D g2d = (Graphics2D)g;
g2d.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
RenderingHints.VALUE_FRACTIONALMETRICS_OFF);
AffineTransform tx = g2d.getTransform();
int x = 40, y = 0;
for (int i=0; i<360; i+=10) {
g2d.translate(SZ/2, SZ/2);
g2d.rotate((double)i/360.0 * Math.PI*2.0);
g2d.setFont(font);
g2d.setColor(Color.BLUE);
g2d.drawString(TEXT, x, y);
FontRenderContext frc = g2d.getFontRenderContext();
GlyphVector gv = font.createGlyphVector(frc, TEXT);
Rectangle2D r = gv.getVisualBounds();
FontMetrics fm = g2d.getFontMetrics();
if (r.getHeight() > 1.1 * fm.getHeight()) {
System.out.println("FAIL : r= " + r + " hgt=" + fm.getHeight());
}
g2d.setColor(Color.RED);
g2d.translate(x, y);
g2d.draw(r);
g2d.setTransform(tx);
}
}
static void test(Graphics2D g2d, Font font) {
int x = 40, y = 0;
g2d.setFont(font);
g2d.setColor(Color.BLUE);
g2d.drawString(TEXT, x, y);
FontRenderContext frc = g2d.getFontRenderContext();
GlyphVector gv = font.createGlyphVector(frc, TEXT);
Rectangle2D r = gv.getVisualBounds();
FontMetrics fm = g2d.getFontMetrics();
if (r.getHeight() > 1.2 * fm.getHeight()) {
System.out.println("FAIL : " + r);
}
g2d.setColor(Color.RED);
g2d.translate(x, y);
g2d.draw(r);
}
static void doTest() {
GraphicsEnvironment ge =
GraphicsEnvironment.getLocalGraphicsEnvironment();
String[] families = ge.getAvailableFontFamilyNames();
BufferedImage bi =
new BufferedImage(SZ, SZ, BufferedImage.TYPE_INT_RGB);
Graphics2D g2d = bi.createGraphics();
g2d.rotate( Math.PI/4.0);
FontRenderContext frc = g2d.getFontRenderContext();
boolean failed = false;
for (String s : families) {
Font font = new Font(s, Font.BOLD, 20);
if (font.canDisplayUpTo(TEXT) != -1) {
continue;
}
g2d.setFont(font);
GlyphVector gv = font.createGlyphVector(frc, TEXT);
Rectangle2D r = gv.getVisualBounds();
FontMetrics fm = g2d.getFontMetrics();
if (r.getHeight() > 1.2 * fm.getHeight()) {
failed = true;
System.out.println("FAIL : r= " + r + " hgt=" + fm.getHeight() +
" font=" + font);
}
}
if (failed) {
throw new RuntimeException("test failed");
}
}
}
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