/*
* 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();
}
}