93 lines
2.7 KiB
Java
93 lines
2.7 KiB
Java
/*
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* Copyright (c) 2018, 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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* @key headful
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* @bug 8195738
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* @summary scroll position in ScrollPane is reset after calling validate()
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* @run main ScrollPaneValidateTest
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*/
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import java.awt.ScrollPane;
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import java.awt.BorderLayout;
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import java.awt.GridLayout;
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import java.awt.Button;
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import java.awt.Dimension;
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import java.awt.Frame;
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import java.awt.Panel;
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import java.awt.Point;
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import java.awt.Robot;
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import java.awt.AWTException;
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public class ScrollPaneValidateTest extends Frame {
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ScrollPane pane;
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public ScrollPaneValidateTest() {
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setBounds(300, 300, 300, 300);
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pane = new ScrollPane(ScrollPane.SCROLLBARS_NEVER);
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add(pane, BorderLayout.NORTH);
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pane.add(new InnerPanel());
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}
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public static void main(String[] args) throws AWTException {
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Robot robot = new Robot();
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final ScrollPaneValidateTest obj = new ScrollPaneValidateTest();
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obj.setVisible(true);
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// set to some scroll position
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obj.pane.setScrollPosition(600, 200);
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// get the newly set position
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Point scrollPosition = obj.pane.getScrollPosition();
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// call validate multiple times
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obj.pane.validate();
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robot.delay(1000);
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obj.pane.validate();
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robot.delay(1000);
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// compare position after calling the validate function
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if(!scrollPosition.equals(obj.pane.getScrollPosition())) {
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obj.dispose();
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throw new RuntimeException("Scrolling position is changed in ScrollPane");
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}
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obj.dispose();
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return;
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}
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class InnerPanel extends Panel {
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public InnerPanel() {
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this.setLayout(new GridLayout(2, 4));
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for (int i = 1; i <= 8; i++) {
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this.add(new Button("Button" + i));
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}
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}
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public Dimension getPreferredSize() {
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return new Dimension(980, 200);
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}
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}
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}
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