| /* |
| * Copyright (c) 2018, 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 RotatedTextTest |
| * @bug 8203485 |
| * @summary This test verifies that rotated text preserves the width. |
| * @run main RotatedTextTest |
| */ |
| |
| import java.awt.Color; |
| import java.awt.Dimension; |
| import java.awt.Font; |
| import java.awt.FontMetrics; |
| import java.awt.Graphics; |
| import java.awt.Graphics2D; |
| import java.awt.geom.Rectangle2D; |
| import java.awt.image.BufferedImage; |
| import java.io.BufferedOutputStream; |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import javax.imageio.ImageIO; |
| |
| public class RotatedTextTest |
| { |
| static final int size = 720; |
| static final Font fnt = new Font(Font.SERIF, Font.PLAIN, 12); |
| static final String text = "The quick brown fox jumps over the lazy dog"; |
| |
| static void drawRotatedText(Graphics g) { |
| Graphics2D g2d = (Graphics2D)g; |
| |
| g2d.setFont(fnt); |
| |
| FontMetrics metrics = g2d.getFontMetrics(); |
| Rectangle2D bounds = metrics.getStringBounds(text, g2d); |
| |
| |
| g2d.setColor(Color.black); |
| g2d.fillRect(0, 0, size, size); |
| |
| g2d.setColor(Color.white); |
| |
| float[] angles = new float[] { 0, 15, 45, 60, 90, -45, -90, -135, -180, 135, }; |
| |
| for (float a : angles) { |
| Graphics2D rotated = (Graphics2D)g2d.create(); |
| |
| rotated.translate(size/2, size/2); |
| rotated.rotate(Math.toRadians(a)); |
| rotated.translate(30, 0); |
| |
| int width_original = metrics.stringWidth(text); |
| int width_rotated = rotated.getFontMetrics().stringWidth(text); |
| |
| rotated.drawString(text, 0, 0); |
| rotated.drawString(String.format(" %.0f", a), width_original, 0); |
| |
| rotated.setColor(Color.green); |
| rotated.draw(bounds); |
| |
| System.out.printf("Angle: %.0f, width diff: %d\n", a, (width_rotated - width_original)); |
| |
| rotated.dispose(); |
| |
| if (width_rotated != width_original) { |
| throw new RuntimeException("Test failed for angle " + a); |
| } |
| } |
| } |
| |
| public static void main(String args[]) |
| { |
| final BufferedImage dst = new BufferedImage(size, size, BufferedImage.TYPE_INT_RGB); |
| Graphics g = dst.createGraphics(); |
| |
| try { |
| drawRotatedText(g); |
| } finally { |
| g.dispose(); |
| writeToFile(dst); |
| } |
| } |
| |
| static final String title; |
| static final String file; |
| |
| static { |
| String vendorName = System.getProperty("java.vendor"); |
| String version = System.getProperty("java.version"); |
| String runtimeName = System.getProperty("java.runtime.name"); |
| |
| |
| int index = runtimeName.indexOf(" Runtime Environment"); |
| runtimeName = runtimeName.substring(0, index).trim(); |
| |
| title = vendorName + ", " + runtimeName + ", " + version; |
| file = "rotated-text-" + title.replace(", ", "-") |
| .replace(" ", "-") + ".png"; |
| } |
| |
| private static void writeToFile(final BufferedImage bi) { |
| File imageFile = new File(file); |
| FileOutputStream imageOutStream; |
| BufferedOutputStream imageBOS = null; |
| try { |
| imageOutStream = new FileOutputStream(imageFile); |
| imageBOS = new BufferedOutputStream(imageOutStream); |
| |
| ImageIO.setUseCache(false); |
| ImageIO.write(bi, "png", imageBOS); |
| |
| imageBOS.close(); |
| imageOutStream.close(); |
| } |
| catch (Exception e) { |
| System.out.println(e.getMessage()); |
| } |
| } |
| } |