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/*
* Copyright (c) 2000, 2023, 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
@bug 4046446
@requires os.family=="windows"
@summary Tests 16-bit limitations of scroll pane, child's position and size
and mouse coordinates
@key headful
*/
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Frame;
import java.awt.Point;
import java.awt.Robot;
import java.awt.ScrollPane;
import java.awt.event.InputEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseAdapter;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
public class ScrollPaneLimitation {
static final int SCROLL_POS = 50000;
public static Component child = null;
static final CountDownLatch go = new CountDownLatch(1);
public Frame frame;
volatile Point point;
ScrollPane pane;
public static void main(String[] args) throws Exception {
ScrollPaneLimitation scrollTest = new ScrollPaneLimitation();
scrollTest.init();
scrollTest.start();
}
public void init() throws Exception {
EventQueue.invokeAndWait(() -> {
frame = new Frame("Scroll Pane Limitation");
frame.setLayout(new BorderLayout());
pane = new ScrollPane();
frame.add(pane);
child = new MyPanel();
child.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
if (e.getID() == MouseEvent.MOUSE_PRESSED
&& e.getSource() == ScrollPaneLimitation.child
&& e.getY() > SCROLL_POS) {
go.countDown();
}
}
});
pane.add(child);
frame.setSize(200, 200);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setAlwaysOnTop(true);
frame.setVisible(true);
pane.doLayout();
});
}
public void start() throws Exception {
try {
Robot robot = new Robot();
robot.waitForIdle();
robot.delay(1000);
EventQueue.invokeAndWait(() -> {
Point p = child.getLocation();
System.out.println("Child's initial location " + p);
System.out.println("Pane's insets " + pane.getInsets());
pane.setScrollPosition(0, SCROLL_POS);
p = pane.getScrollPosition();
System.out.println("Scroll pos = " + p);
if (p.y != SCROLL_POS) {
throw new RuntimeException("wrong scroll position");
}
p = child.getLocation();
System.out.println("Child pos = " + p);
if (p.y != -SCROLL_POS) {
if (child.isLightweight()) {
// If it is lightweight it will always have (0, 0) location.
// Check location of its parent - it is Panel and it should
// be at (inset left, inset top + position)
Container cp = child.getParent();
p = cp.getLocation();
System.out.println("Child's parent pos = " + p);
if (p.y != -SCROLL_POS) {
throw new RuntimeException("wrong child location");
}
} else {
throw new RuntimeException("wrong child location");
}
}
p = pane.getLocationOnScreen();
Dimension d = pane.getSize();
point = new Point(p.x + d.width / 2, p.y + d.height / 2);
});
robot.mouseMove(point.x, point.y);
robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
if (!go.await(3, TimeUnit.SECONDS)) {
throw new RuntimeException("mouse was not pressed");
}
} finally {
EventQueue.invokeAndWait(() -> {
if (frame != null) {
frame.dispose();
}
});
}
}
private static class MyPanel extends Component {
public Dimension getPreferredSize() {
return new Dimension(100, 100000);
}
}
}
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