jdk-24/test/jdk/java/awt/ScrollPane/ScrollPositionIntact.java
2023-05-26 07:50:10 +00:00

104 lines
3.5 KiB
Java

/*
* Copyright (c) 2011, 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 6404832
@summary Tests that scroll position is not changed by validate() for mode SCROLLBARS_NEVER
@key headful
@run main ScrollPositionIntact
*/
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Frame;
import java.awt.GridLayout;
import java.awt.Label;
import java.awt.Panel;
import java.awt.Robot;
import java.awt.ScrollPane;
public class ScrollPositionIntact {
Frame frame;
ScrollPane sp;
Panel pa;
public static final int X_POS = 100;
public static void main(String[] args) throws Exception {
ScrollPositionIntact test = new ScrollPositionIntact();
test.init();
test.start();
}
public void init() throws Exception {
EventQueue.invokeAndWait(() -> {
pa = new Panel();
pa.setSize(600, 50);
pa.setPreferredSize(new Dimension(600, 50));
pa.setBackground(Color.red);
sp = new ScrollPane(ScrollPane.SCROLLBARS_NEVER);
sp.setSize(200, 50);
pa.setLayout(new GridLayout(1, 3));
pa.add("West", new Label("west", Label.LEFT));
pa.add("West", new Label());
pa.add("East", new Label("East", Label.RIGHT));
sp.add(pa);
frame = new Frame("ScrollPositionIntact");
frame.setSize(200, 100);
frame.add(sp);
frame.setVisible(true);
});
}
public void start() throws Exception {
try {
Robot robot = new Robot();
robot.waitForIdle();
robot.delay(1000);
EventQueue.invokeAndWait(() -> {
frame.toFront();
frame.requestFocus();
sp.setScrollPosition(X_POS, sp.getScrollPosition().y);
pa.validate();
// Now, before the fix, in Windows XP, Windows XP theme and on Vista,
// scrollposition would be reset to zero..
sp.validate();
int i = (int) (sp.getScrollPosition().getX());
if (i <= 0) {
// actual position MAY be not equal to X_POS; still, it must be > 0.
throw new RuntimeException("Test failure: zero scroll position.\n\n");
}
});
} finally {
EventQueue.invokeAndWait(() -> {
if (frame != null) {
frame.dispose();
}
});
}
}
}