115 lines
4.4 KiB
Java
115 lines
4.4 KiB
Java
/*
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* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.awt.Color;
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import java.awt.EventQueue;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.IOException;
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import java.util.List;
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import javax.imageio.ImageIO;
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import javax.swing.JEditorPane;
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import javax.swing.text.html.HTMLEditorKit;
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/**
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* @test
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* @bug 8134256
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* @summary Different "background-position" should produce different pages
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*/
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public final class BackgroundImagePosition {
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static final List<String> pos = List.of("", "-2", "-1", "1px", "2px", "3px",
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"1em", "2em", "3em", "10%", "55%",
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"-1em", "-2em", "-3em", "-10%");
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static final int SIZE = 300;
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public static void main(final String[] args) throws Exception {
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// The image which we will place on the page
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final BufferedImage bi = new BufferedImage(50, 50,
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BufferedImage.TYPE_INT_ARGB);
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final Graphics2D g = bi.createGraphics();
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g.setColor(Color.GREEN);
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g.fillRect(0, 0, 50, 50);
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g.dispose();
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final File file = new File("file.png");
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ImageIO.write(bi, "png", file);
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for (final String x : pos) {
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final BufferedImage img1 = test(x, x);
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for (final String y : pos) {
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// Different positions should produce different pages
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if (!x.equals(y)) {
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compareImages(img1, test(x, y));
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compareImages(img1, test(y, x));
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}
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}
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}
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}
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/**
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* Throws an exception if the images are the same.
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*/
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static void compareImages(final BufferedImage img1,
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final BufferedImage img2) throws IOException {
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for (int imgX = 0; imgX < SIZE; ++imgX) {
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for (int imgY = 0; imgY < SIZE; ++imgY) {
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if (img1.getRGB(imgX, imgY) != img2.getRGB(imgX, imgY)) {
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return;
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}
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}
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}
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ImageIO.write(img1, "png", new File("img1.png"));
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ImageIO.write(img2, "png", new File("img2.png"));
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throw new RuntimeException("Same images for different size");
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}
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static BufferedImage test(final String x, final String y) throws Exception {
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final BufferedImage bi = new BufferedImage(SIZE, SIZE,
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BufferedImage.TYPE_INT_ARGB);
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EventQueue.invokeAndWait(() -> {
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try {
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final JEditorPane jep = new JEditorPane();
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final HTMLEditorKit kit = new HTMLEditorKit();
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jep.setEditorKit(kit);
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jep.setText(
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"<style>body {"
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+ "background-image: url(file:./file.png);"
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+ "background-repeat: no-repeat;"
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+ "background-position: " + x + " " + y + ";"
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+ "background-color: #FF0000;"
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+ "}</style><body></body>");
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jep.setSize(SIZE, SIZE);
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final Graphics2D graphics = bi.createGraphics();
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jep.paint(graphics);
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graphics.dispose();
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} catch (final Exception e) {
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throw new RuntimeException(e);
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}
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});
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return bi;
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}
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}
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