russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
106 lines
3.5 KiB
Java
106 lines
3.5 KiB
Java
/*
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* Copyright (c) 2006, 2025, 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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/*
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* @test
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* @bug 4094059
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* @summary drawing to a subclass of canvas didn't draw to the correct location.
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* @key headful
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* @run main LineLocationTest
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*/
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import java.awt.AWTException;
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import java.awt.Canvas;
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import java.awt.Color;
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import java.awt.Dimension;
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import java.awt.EventQueue;
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import java.awt.Frame;
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import java.awt.Graphics;
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import java.awt.Panel;
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import java.awt.Point;
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import java.awt.Rectangle;
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import java.awt.Robot;
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import java.awt.image.BufferedImage;
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import java.lang.reflect.InvocationTargetException;
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public class LineLocationTest extends Frame {
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private DrawScreen screen;
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public void initialize() {
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setSize(400, 400);
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setLocationRelativeTo(null);
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setTitle("Line Location Test");
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Panel p = new Panel();
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screen = new DrawScreen();
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p.add(screen);
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p.setLocation(50, 50);
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p.setSize(300, 300);
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add(p);
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setBackground(Color.white);
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setForeground(Color.blue);
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setVisible(true);
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}
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public void requestCoordinates(Rectangle r) {
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Point location = screen.getLocationOnScreen();
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Dimension size = screen.getSize();
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r.setBounds(location.x, location.y, size.width, size.height);
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}
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public static void main(String[] args) throws InterruptedException,
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InvocationTargetException, AWTException {
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LineLocationTest me = new LineLocationTest();
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EventQueue.invokeAndWait(me::initialize);
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try {
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Robot robot = new Robot();
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robot.delay(1000);
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Rectangle coords = new Rectangle();
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EventQueue.invokeAndWait(() -> {
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me.requestCoordinates(coords);
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});
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BufferedImage capture = robot.createScreenCapture(coords);
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robot.delay(2000);
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for (int y = 0; y < capture.getHeight(); y++) {
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for (int x = 0; x < capture.getWidth(); x++) {
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int blue = Color.blue.getRGB();
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if (capture.getRGB(x, y) == blue) {
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throw new RuntimeException("Blue detected at " + x + ", " + y);
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}
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}
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}
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} finally {
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EventQueue.invokeAndWait(me::dispose);
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}
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}
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}
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class DrawScreen extends Canvas {
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public Dimension getPreferredSize() {
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return new Dimension(300, 300);
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}
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public void paint(Graphics g) {
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g.setColor(Color.blue);
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g.drawLine(5, -3145583, 50, -3145583);
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}
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}
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