| /* |
| * Copyright (c) 2014, 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. |
| */ |
| |
| import java.awt.Color; |
| import java.awt.Font; |
| import java.awt.Graphics2D; |
| import java.awt.RenderingHints; |
| import java.awt.geom.AffineTransform; |
| import java.awt.image.BufferedImage; |
| import java.io.File; |
| import java.io.IOException; |
| |
| import javax.imageio.ImageIO; |
| |
| import static java.awt.image.BufferedImage.TYPE_INT_RGB; |
| import static java.lang.Math.toRadians; |
| |
| /** |
| * @test |
| * @bug 8065373 |
| * @summary Verifies that we get correct direction, when draw rotated string. |
| * @author Sergey Bylokhov |
| * @run main DrawRotatedStringUsingRotatedFont |
| */ |
| public final class DrawRotatedStringUsingRotatedFont { |
| |
| private static final int SIZE = 500; |
| private static final String STR = "MMMMMMMMMMMMMMMM"; |
| |
| private static AffineTransform[] txs = { |
| AffineTransform.getRotateInstance(toRadians(00)), |
| AffineTransform.getRotateInstance(toRadians(45)), |
| AffineTransform.getRotateInstance(toRadians(-45)), |
| AffineTransform.getRotateInstance(toRadians(90)), |
| AffineTransform.getRotateInstance(toRadians(-90)), |
| AffineTransform.getRotateInstance(toRadians(135)), |
| AffineTransform.getRotateInstance(toRadians(-135)), |
| AffineTransform.getRotateInstance(toRadians(180)), |
| AffineTransform.getRotateInstance(toRadians(-180)), |
| AffineTransform.getRotateInstance(toRadians(225)), |
| AffineTransform.getRotateInstance(toRadians(-225)), |
| AffineTransform.getRotateInstance(toRadians(270)), |
| AffineTransform.getRotateInstance(toRadians(-270)), |
| AffineTransform.getRotateInstance(toRadians(315)), |
| AffineTransform.getRotateInstance(toRadians(-315)), |
| AffineTransform.getRotateInstance(toRadians(360)), |
| AffineTransform.getRotateInstance(toRadians(-360)) |
| }; |
| |
| public static void main(final String[] args) throws IOException { |
| for (final AffineTransform tx2 : txs) { |
| for (final AffineTransform tx1 : txs) { |
| for (final boolean aa : new boolean[]{true, false}) { |
| final BufferedImage bi1 = createImage(aa, tx1, tx2); |
| final BufferedImage bi2 = createImage(aa, tx2, tx1); |
| compareImage(bi1, bi2); |
| fillTextArea(bi1, tx1, tx2); |
| fillTextArea(bi2, tx2, tx1); |
| checkColors(bi1, bi2); |
| } |
| } |
| } |
| System.out.println("Passed"); |
| } |
| |
| /** |
| * Compares two images. |
| */ |
| private static void compareImage(final BufferedImage bi1, |
| final BufferedImage bi2) |
| throws IOException { |
| for (int i = 0; i < SIZE; ++i) { |
| for (int j = 0; j < SIZE; ++j) { |
| if (bi1.getRGB(i, j) != bi2.getRGB(i, j)) { |
| ImageIO.write(bi1, "png", new File("image1.png")); |
| ImageIO.write(bi2, "png", new File("image2.png")); |
| throw new RuntimeException("Failed: wrong text location"); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Checks an image color. RED and GREEN are allowed only. |
| */ |
| private static void checkColors(final BufferedImage bi1, |
| final BufferedImage bi2) |
| throws IOException { |
| for (int i = 0; i < SIZE; ++i) { |
| for (int j = 0; j < SIZE; ++j) { |
| final int rgb1 = bi1.getRGB(i, j); |
| final int rgb2 = bi2.getRGB(i, j); |
| if (rgb1 != rgb2 || rgb1 != 0xFFFF0000 && rgb1 != 0xFF00FF00) { |
| ImageIO.write(bi1, "png", new File("image1.png")); |
| ImageIO.write(bi2, "png", new File("image2.png")); |
| throw new RuntimeException("Failed: wrong text location"); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Creates an BufferedImage and draws a text, using two transformations, |
| * one for graphics and one for font. |
| */ |
| private static BufferedImage createImage(final boolean aa, |
| final AffineTransform gtx, |
| final AffineTransform ftx) { |
| final BufferedImage bi = new BufferedImage(SIZE, SIZE, TYPE_INT_RGB); |
| final Graphics2D bg = bi.createGraphics(); |
| bg.setRenderingHint(RenderingHints.KEY_ANTIALIASING, |
| aa ? RenderingHints.VALUE_ANTIALIAS_ON |
| : RenderingHints.VALUE_ANTIALIAS_OFF); |
| bg.setColor(Color.RED); |
| bg.fillRect(0, 0, SIZE, SIZE); |
| bg.translate(100, 100); |
| bg.transform(gtx); |
| bg.setColor(Color.BLACK); |
| bg.setFont(bg.getFont().deriveFont(20.0f).deriveFont(ftx)); |
| bg.drawString(STR, 0, 0); |
| bg.dispose(); |
| return bi; |
| } |
| |
| /** |
| * Fills the area of text using green solid color. |
| */ |
| private static void fillTextArea(final BufferedImage bi, |
| final AffineTransform tx1, |
| final AffineTransform tx2) { |
| final Graphics2D bg = bi.createGraphics(); |
| bg.translate(100, 100); |
| bg.transform(tx1); |
| bg.transform(tx2); |
| bg.setColor(Color.GREEN); |
| final Font font = bg.getFont().deriveFont(20.0f); |
| bg.setFont(font); |
| bg.fill(font.getStringBounds(STR, bg.getFontRenderContext())); |
| bg.dispose(); |
| } |
| } |
| |